WO2019183172A1 - Apparatus and method for processing material - Google Patents

Apparatus and method for processing material Download PDF

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Publication number
WO2019183172A1
WO2019183172A1 PCT/US2019/023090 US2019023090W WO2019183172A1 WO 2019183172 A1 WO2019183172 A1 WO 2019183172A1 US 2019023090 W US2019023090 W US 2019023090W WO 2019183172 A1 WO2019183172 A1 WO 2019183172A1
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WO
WIPO (PCT)
Prior art keywords
block
electrode assembly
axis
blocks
along
Prior art date
Application number
PCT/US2019/023090
Other languages
French (fr)
Inventor
Carlos Eduardo Folgar
Jason Arthur Howles
William Brashear Mattingly Iii
John Arthur MEDFORD
Original Assignee
Corning Incorporated
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Corning Incorporated filed Critical Corning Incorporated
Publication of WO2019183172A1 publication Critical patent/WO2019183172A1/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D11/00Arrangement of elements for electric heating in or on furnaces
    • F27D11/02Ohmic resistance heating
    • F27D11/04Ohmic resistance heating with direct passage of current through the material being heated
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/02Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating
    • C03B5/027Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating by passing an electric current between electrodes immersed in the glass bath, i.e. by direct resistance heating

Definitions

  • the present disclosure relates generally to apparatus and methods for processing material and, more particularly, to an electrode assembly including a plurality of blocks, an apparatus including the electrode assembly and a vessel, and methods for processing material in the vessel including supplying electrical energy to the electrode assembly.
  • a glass manufacturing apparatus designed to produce a glass article from a quantity of molten material.
  • Conventional glass manufacturing apparatus include a furnace including electrodes designed to process (e.g., melt, heat) batch material into a quantity of molten material.
  • an electrode assembly includes a plurality of blocks stacked along a first axis in a first direction.
  • the plurality of blocks span a first distance along the first axis and a second distance along a second axis in a second direction perpendicular to the first direction.
  • the first distance and the second distance define a first face of the electrode assembly
  • the plurality of blocks span a third distance from the first face of the electrode assembly to a second face of the electrode assembly along a third axis in a third direction perpendicular to the first direction and the second direction.
  • a first dimension of a first block of the plurality of blocks defined along the third axis from a first end of the first block to a second end of the first block is greater than a second dimension of a second block of the plurality of blocks defined along the third axis from a first end of the second block to a second end of the second block.
  • the first end of the first block defines a first portion of the first face
  • the first end of the second block defines a second portion of the first face
  • the first face defines a planar surface of the electrode assembly.
  • the first block includes a first surface extending from the first end of the first block to the second end of the first block, and the first surface defines a non-planar boundary of the first block.
  • the second block includes a second surface extending from the first end of the second block to the second end of the second block, and a first portion of the first surface of the first block faces a portion of the second surface of the second block.
  • the first portion of the first surface of the first block abuts the portion of the second surface of the second block at a first interface.
  • a third dimension of a third block of the plurality of blocks defined along the third axis from a first end of the third block to a second end of the third block is greater than the second dimension, and the first end of the third block faces the second end of the second block.
  • the first dimension equals the third dimension.
  • the third block includes a third surface extending from the first end of the third block to the second end of the third block, the third surface defines a non-planar boundary of the third block, and a second portion of the first surface of the first block faces a portion of the third surface of the third block.
  • the first end of the third block abuts the second end of the second block at a second interface, and the second portion of the first surface of the first block abuts the portion of the third surface of the third block at a third interface.
  • the electrode assembly further includes a first frame circumscribing the plurality of blocks along the first axis and the second axis.
  • the first frame is movable along the third axis. [0017] In some embodiments, the first frame applies a first clamping force on the plurality of blocks along at least one of the first axis and the second axis.
  • the first frame comprises a first fastener oriented to at least one of increase and decrease the first clamping force.
  • the electrode assembly includes a second frame circumscribing the plurality of blocks along the first axis and the second axis.
  • the second frame is movable along the third axis, the second frame applies a second clamping force on the plurality of blocks along at least one of the first axis and the second axis, and the second frame includes a second fastener oriented to at least one of increase and decrease the second clamping force.
  • the first frame and the second frame are independently movable along the third axis.
  • an apparatus includes the electrode assembly and a vessel including at least one wall defining a containment area of the vessel.
  • the at least one wall includes an aperture defining an opening receiving at least a portion of the electrode assembly.
  • the vessel includes a melting vessel for a glass manufacturing system.
  • a position of the electrode assembly is adjustable relative to the opening of the wall.
  • a method of processing material in the vessel includes supplying electrical energy to the electrode assembly and heating the material in the containment area of the vessel with the electrical energy.
  • the method includes adjusting a position of the electrode assembly relative to the opening of the wall while heating the material.
  • FIG. 1 schematically illustrates an exemplary embodiment of a glass manufacturing apparatus in accordance with embodiments of the disclosure
  • FIG. 2 shows a perspective cross-sectional view of the glass manufacturing apparatus along line 2-2 of FIG. 1 including a glass forming apparatus in accordance with embodiments of the disclosure
  • FIG. 3 shows a plan view of a portion of the glass manufacturing apparatus along line 3-3 of FIG. 1 including a vessel and a heating device in accordance with embodiments of the disclosure;
  • FIG. 4 shows a cross-sectional view of the vessel and the heating device along line 4-4 of FIG. 3 in accordance with embodiments of the disclosure
  • FIG. 5 shows a side view of the vessel of the glass manufacturing apparatus along line 5-5 of FIG. 3 including an electrode assembly in accordance with embodiments of the disclosure
  • FIG. 6 shows a partial cross-sectional view of the vessel and the heating device of FIG. 4 including an electrode assembly including a plurality of blocks in accordance with embodiments of the disclosure
  • FIG. 7 shows an exemplary embodiment of the partial cross-sectional view of the electrode assembly including the plurality of blocks of FIG. 6 in accordance with embodiments of the disclosure
  • FIG. 8 shows an exemplary embodiment of the partial cross-sectional view of the electrode assembly including the plurality of blocks of FIG. 7 in accordance with embodiments of the disclosure
  • FIG. 9 shows an exemplary embodiment of the partial cross-sectional view of the electrode assembly including the plurality of blocks of FIG. 8 in accordance with embodiments of the disclosure
  • FIG. 10 shows an exemplary embodiment of the partial cross-sectional view of the electrode assembly including the plurality of blocks of FIG. 9 in accordance with embodiments of the disclosure
  • FIG. 11 shows an exemplary embodiment of the partial cross-sectional view of the electrode assembly including the plurality of blocks of FIG. 10 in accordance with embodiments of the disclosure
  • FIG. 12 shows an exemplary embodiment of the partial cross-sectional view of the electrode assembly including the plurality of blocks of FIG. 11 in accordance with embodiments of the disclosure
  • FIG. 13 shows a perspective view of an exemplary block of the plurality of blocks of the electrode assembly of FIGS. 6-12 in accordance with embodiments of the disclosure;
  • FIG. 14 shows an exemplary embodiment of a plurality of exemplary blocks of FIG. 13 stacked in accordance with embodiments of the disclosure;
  • FIG. 15 shows an exemplary embodiment of a frame and a fastener of the electrode assembly at view 15 of FIG. 5 in accordance with embodiments of the disclosure
  • FIG. 16 shows an alternate exemplary embodiment of a frame and a fastener of the electrode assembly at view 15 of FIG. 5 in accordance with embodiments of the disclosure.
  • FIG. 17 shows an alternate exemplary embodiment of a frame and a fastener of the electrode assembly at view 15 of FIG. 5 in accordance with embodiments of the disclosure.
  • a glass manufacturing apparatus can optionally include a glass forming apparatus that forms a glass article (e.g., a glass ribbon and/or a glass sheet) from a quantity of molten material.
  • the glass manufacturing apparatus can optionally include a glass forming apparatus such as a slot draw apparatus, float bath apparatus, down-draw apparatus, up-draw apparatus, press-rolling apparatus, or other glass forming apparatus that forms a glass article.
  • the glass article can include one or more optical characteristics desirable with respect to a variety of articles (e.g., ophthalmic articles, display articles).
  • the glass manufacturing apparatus can be employed to provide display articles (e.g., display glass sheets) that can be employed in a variety of display applications including, but not limited to, liquid crystal displays (LCDs), electrophoretic displays (EPD), organic light emitting diode displays (OLEDs), plasma display panels (PDPs), and other electronic displays.
  • display articles e.g., display glass sheets
  • LCDs liquid crystal displays
  • EPD electrophoretic displays
  • OLEDs organic light emitting diode displays
  • PDPs plasma display panels
  • an exemplary glass manufacturing apparatus 100 can include a glass forming apparatus 101 including a forming vessel 140 designed to produce a glass ribbon 103 from a quantity of molten material 121.
  • the glass ribbon 103 can include a central portion 152 disposed between opposite, relatively thick edge beads formed along a first outer edge 153 and a second outer edge 155 of the glass ribbon 103.
  • a glass sheet 104 can be separated from the glass ribbon 103 along a separation path 151 by a glass separator 149 (e.g., scribe, score wheel, diamond tip, laser, etc.).
  • the relatively thick edge beads formed along the first outer edge 153 and the second outer edge 155 can be removed to provide the central portion 152 as a high-quality glass sheet 104 having a uniform thickness.
  • the resulting high-quality glass sheet 104 can then be at least one of processed and employed in a variety of applications.
  • the glass manufacturing apparatus 100 can include a melting vessel 105 oriented to receive batch material 107 from a storage bin 109.
  • the batch material 107 can be introduced by a batch delivery device 111 powered by a motor 113.
  • an optional controller 115 can be operated to activate the motor 113 to introduce a desired amount of batch material 107 into the melting vessel 105, as indicated by arrow 117.
  • the melting vessel 105 can heat the batch material 107 to provide molten material 121.
  • a glass melt probe 119 can be employed to measure a level of molten material 121 within a standpipe 123 and communicate the measured information to the controller 115 by way of a communication line 125.
  • the glass manufacturing apparatus 100 can include a first conditioning station including a fining vessel 127 located downstream from the melting vessel 105 and coupled to the melting vessel 105 by way of a first connecting conduit 129.
  • molten material 121 can be gravity fed from the melting vessel 105 to the fining vessel 127 by way of the first connecting conduit 129.
  • gravity can drive the molten material 121 to pass through an interior pathway of the first connecting conduit 129 from the melting vessel 105 to the fining vessel 127.
  • bubbles can be removed from the molten material 121 within the fining vessel 127 by various techniques.
  • the glass manufacturing apparatus 100 can further include a second conditioning station including a mixing chamber 131 that can be located downstream from the fining vessel 127.
  • the mixing chamber 131 can be employed to provide a homogenous composition of molten material 121, thereby reducing or eliminating inhomogeneity that may otherwise exist within the molten material 121 exiting the fining vessel 127.
  • the fining vessel 127 can be coupled to the mixing chamber 131 by way of a second connecting conduit 135.
  • molten material 121 can be gravity fed from the fining vessel 127 to the mixing chamber 131 by way of the second connecting conduit 135.
  • gravity can drive the molten material 121 to pass through an interior pathway of the second connecting conduit 135 from the fining vessel 127 to the mixing chamber 131.
  • the glass manufacturing apparatus 100 can include a third conditioning station including a delivery vessel 133 that can be located downstream from the mixing chamber 131.
  • the delivery vessel 133 can condition the molten material 121 to be fed into an inlet conduit 141.
  • the delivery vessel 133 can function as an accumulator and/or flow controller to adjust and provide a consistent flow of molten material 121 to the inlet conduit 141.
  • the mixing chamber 131 can be coupled to the delivery vessel 133 by way of a third connecting conduit 137.
  • molten material 121 can be gravity fed from the mixing chamber 131 to the delivery vessel 133 by way of the third connecting conduit 137.
  • gravity can drive the molten material 121 to pass through an interior pathway of the third connecting conduit 137 from the mixing chamber 131 to the delivery vessel 133.
  • a delivery pipe 139 e.g., downcomer
  • a delivery pipe 139 can be positioned to deliver molten material 121 to the inlet conduit 141 of the forming vessel 140.
  • forming vessels can be provided in accordance with features of the disclosure including a forming vessel with a wedge for fusion drawing the glass ribbon, a forming vessel with a slot to slot draw the glass ribbon, or a forming vessel provided with press rolls to press roll the glass ribbon from the forming vessel.
  • the forming vessel 140 shown and disclosed below can be provided to fusion draw molten material 121 off a root 145 of a forming wedge 209 to produce the glass ribbon 103.
  • the molten material 121 can be delivered from the inlet conduit 141 to the forming vessel 140.
  • the molten material 121 can then be formed into the glass ribbon 103 based at least in part on the structure of the forming vessel 140.
  • the molten material 121 can be drawn off the bottom edge (e.g., root 145) of the forming vessel 140 along a draw path extending in a draw direction 157 of the glass manufacturing apparatus 100.
  • edge directors 163a, 163b can direct the molten material 121 off the forming vessel 140 and define, at least in part, a width“W” of the glass ribbon 103.
  • the width “W” of the glass ribbon 103 can extend between the first outer edge 153 of the glass ribbon 103 and the second outer edge 155 of the glass ribbon 103.
  • FIG. 2 shows a cross-sectional perspective view of the glass manufacturing apparatus 100 along line 2-2 of FIG. 1.
  • the forming vessel 140 can include a trough 201 oriented to receive the molten material 121 from the inlet conduit 141.
  • a trough 201 oriented to receive the molten material 121 from the inlet conduit 141.
  • cross-hatching of the molten material 121 is removed from FIG. 2 for clarity.
  • the forming vessel 140 can further include the forming wedge 209 including a pair of downwardly inclined converging surface portions 207a, 207b extending between opposed ends 210a, 210b (See FIG. 1) of the forming wedge 209.
  • the pair of downwardly inclined converging surface portions 207a, 207b of the forming wedge 209 can converge along the draw direction 157 to intersect along a bottom edge of the forming wedge 209 to define the root 145 of the forming vessel 140.
  • a draw plane 213 of the glass manufacturing apparatus 100 can extend through the root 145 along the draw direction 157.
  • the glass ribbon 103 can be drawn in the draw direction 157 along the draw plane 213.
  • the draw plane 213 can bisect the forming wedge 209 through the root 145 although, in some embodiments, the draw plane 213 can extend at other orientations relative to the root 145.
  • the molten material 121 can flow in a direction 159 into the trough 201 of the forming vessel 140.
  • the molten material 121 can then overflow from the trough 201 by simultaneously flowing over corresponding weirs 203a, 203b and downward over the outer surfaces 205a, 205b of the corresponding weirs 203a, 203b.
  • Respective streams of molten material 121 can then flow along the downwardly inclined converging surface portions 207a, 207b of the forming wedge 209 to be drawn off the root 145 of the forming vessel 140, where the flows converge and fuse into the glass ribbon 103.
  • the glass ribbon 103 can then be fusion drawn off the root 145 in the draw plane 213 along the draw direction 157.
  • the glass separator 149 (see FIG. 1) can then subsequently separate the glass sheet 104 from the glass ribbon 103 along the separation path 151.
  • the separation path 151 can extend along the width“W” of the glass ribbon 103 between the first outer edge 153 and the second outer edge 155. Additionally, in some embodiments, the separation path 151 can extend perpendicular to the draw direction 157 of the glass ribbon 103.
  • the draw direction 157 can define a direction along which the glass ribbon 103 can be fusion drawn from the forming vessel 140.
  • the glass ribbon 103 can be drawn from the root 145 with a first major surface 215a of the glass ribbon 103 and a second major surface 215b of the glass ribbon 103 facing opposite directions and defining a thickness“T” (e.g., average thickness) of the glass ribbon 103.
  • the thickness “T’ of the glass ribbon 103 can be less than or equal to about 2 millimeters (mm), less than or equal to about 1 millimeter, less than or equal to about 0.5 millimeters, for example, less than or equal to about 300 micrometers (pm), less than or equal to about 200 micrometers, or less than or equal to about 100 micrometers, although other thicknesses may be provided in further embodiments.
  • the thickness“T’ of the glass ribbon 103 can be from about 50 pm to about 750 pm, from about 100 pm to about 700 pm, from about 200 pm to about 600 pm, from about 300 pm to about 500 pm, from about 50 pm to about 500 pm, from about 50 pm to about 700 pm, from about 50 pm to about 600 pm, from about 50 pm to about 500 pm, from about 50 pm to about 400 pm, from about 50 pm to about 300 pm, from about 50 pm to about 200 pm, from about 50 pm to about 100 pm, including all ranges and subranges of thicknesses therebetween.
  • the glass ribbon 103 can include a variety of compositions including, but not limited to, soda- lime glass, borosilicate glass, alumino-borosilicate glass, alkali-containing glass, or alkali-free glass.
  • FIG. 3 shows a plan view of a portion of the glass manufacturing apparatus 100 including the melting vessel 105 along line 3-3 of FIG. 1, with a top portion (e.g., lid, roof, ceiling) of the melting vessel 105 removed for clarity.
  • the melting vessel 105 can include a fixed or removable top portion without departing from the scope of the disclosure.
  • the top portion of the melting vessel 105 can be open to, for example, the environment outside of the melting vessel 105, and a free surface of the molten material 121 can face the open top portion.
  • the melting vessel 105 can include a wall 310 including an inner surface 311, 312 defining, at least in part, a containment area 315 (e.g., a volume) of the melting vessel 105.
  • a sidewall inner surface 311 and a bottom wall inner surface 312 can define, at least in part, the containment area 315 of the melting vessel 105.
  • the containment area 315 can contain material (e.g., batch material 107, molten material 121); however, unless otherwise noted, it is to be understood that the melting vessel 105 can be empty (e.g., provided without material) in some embodiments, without departing from the scope of the disclosure.
  • material e.g., batch material 107, molten material 121
  • the melting vessel 105 can be empty (e.g., provided without material) in some embodiments, without departing from the scope of the disclosure.
  • the wall 310 of the melting vessel 105 can include (e.g., be manufactured from) metallic and/or non-metallic materials including but not limited to one or more of a thermal insulating refractory material (e.g., ceramic, silicon carbide, zirconia, zircon, chromium oxide). Additionally, in some embodiments the inner surface 311, 312 of the melting vessel 105 can include a layer (not shown) of corrosion resistant material (e.g., platinum, platinum alloys) to provide a corrosion resistant barrier between the material 107, 121 contained within the containment area 315 and the wall 310.
  • a thermal insulating refractory material e.g., ceramic, silicon carbide, zirconia, zircon, chromium oxide
  • the inner surface 311, 312 of the melting vessel 105 can include a layer (not shown) of corrosion resistant material (e.g., platinum, platinum alloys) to provide a corrosion resistant barrier between the material 107, 121 contained within the containment area 315 and
  • the wall 310 of the melting vessel 105 can include material selected to resist structural degradation and deformation (e.g., warp, sag, creep, fatigue, corrosion, breakage, cracking, thermal shock, mechanical shock, etc.) caused by exposure to one or more of an elevated temperature (e.g., temperatures at or below 2l00°C), a corrosive chemical (e.g., boron, phosphorus, sodium oxide), and an external force.
  • the wall 310 can be manufactured as a solid, monolithic structure; however, in some embodiments, a plurality of separate structures (e.g., bricks) can be combined (e.g., stacked) to provide at least a portion of the wall 310.
  • a container e.g., containment vessel
  • a container can include an inner surface 311, 312 defining at least a portion of a containment area 315 oriented to contain material 107, 121 within the containment area 315 without departing from the scope of the disclosure.
  • the batch material 107 can be introduced by the batch delivery device 111 into the containment area 315 of the melting vessel 105.
  • the melting vessel 105 can heat the batch material 107 to provide molten material 121 within the containment area 315.
  • the melting vessel 105 can be operable to raise or lower the temperature of the molten material 121 contained within the containment area 315.
  • the glass manufacturing apparatus 100 can include a heating device 300 (e.g., heater) that can include a first electrode 301 and a second electrode 302 operable to heat (e.g., melt) the batch material 107 to provide the molten material 121.
  • first electrode 301 and the second electrode 302 can be identical to one another.
  • structures and components associated and/or operable with the first electrode 301 can be identical to structures and components associated and/or operable with the second electrode 302.
  • features of the first electrode 301 as well as structures and components associated and/or operable with the first electrode 301 can equally apply to features of the second electrode 302 as well as structures and components associated and/or operable with the second electrode 302.
  • features of the second electrode 302 as well as structures and components associated and/or operable with the second electrode 302 may not be identical to corresponding features of the first electrode 301 as well as corresponding structures and components associated and/or operable with the first electrode 301.
  • one or more additional heating devices can be provided to, for example, initially melt the batch material 107 to provide the molten material 121.
  • the heating device 300 including the first electrode 301 and the second electrode 302 can then be employed to further melt the batch material 107 and/or to further heat the molten material 121.
  • one or more additional heating devices including but not limited to gas heaters, electric heaters, and resistance heaters can be provided, in combination with the heating device 300, to provide additional heat to the material 107, 121 contained within the containment area 315 of the melting vessel 105 without departing from the scope of the disclosure.
  • the heating device 300 can include an electrical circuit including a first electrical lead 307 electrically connected to the first electrode 301 and a second electrical lead 308 electrically connected to the second electrode 302.
  • the material e.g., batch material 107, molten material 121
  • the material can include material properties that cause the material to behave as an electrical resistor which converts an electric current 325 passing through the material 107, 121 into heat energy based at least on the principle of Joule heating.
  • electric current 325 (provided by first electrical lead 307) can pass from a front face 303 of the first electrode 301, through the material 107, 121 contained in the containment area 315, to a front face 304 of the second electrode 302.
  • electric current 325 (provided by second electrical lead 308) can pass from the front face 304 of the second electrode 302, through the material 107, 121 contained in the containment area 315, to the front face 303 of the first electrode 301. Accordingly, in some embodiments, based at least in part on the conversion of the electric current 325 into heat energy, one or more features of the heating device 300 can operate to increase a temperature of the material 107, 121 and/or maintain a temperature of the material 107, 121 contained within the containment area 315 while operating the glass manufacturing apparatus 100
  • the heating device 300 can be employed to, for example, at least one of control and reduce temperature fluctuations and temperature gradients of the material 107, 121 contained within the containment area 315 of the melting vessel 105.
  • one or more features of the heating device 300 can uniformly heat the batch material 107 to provide the molten material 121 contained within the vessel 105 with a uniform, controlled temperature.
  • the uniform, controlled temperature of the molten material 121 can, in some embodiments, provide a better quality glass ribbon 103 relative to glass ribbons formed with molten material 121 that includes temperature gradients and/or temperature fluctuations.
  • the molten material 121 can flow through the containment area 315 (e.g., across the electric current 325) while being heated by the heating device 300.
  • the molten material 121 can then be provided from the vessel 105 to the glass forming apparatus 101 (e.g., via the first connecting conduit 129) for further processing to, for example, form the glass ribbon 103 (See FIG. 1).
  • At least one of the first electrode 301 and the second electrode 302 can include (e.g., be manufactured from) metallic and/or non- metallic materials including but not limited to one or more of tin oxide, carbon, zirconia, molybdenum, platinum, and platinum alloys.
  • the front face 303 of the first electrode 301 and the front face 304 of the second electrode 302 can contact the material 107, 121 contained within the containment area 315 of the melting vessel 105.
  • At least one of the first electrode 301 and the second electrode 302 can include material selected to resist structural degradation and deformation (e.g., warp, sag, creep, fatigue, corrosion, breakage, cracking, thermal shock, mechanical shock, etc.) caused by exposure to one or more of an elevated temperature (e.g., temperatures at or below 2l00°C), a corrosive chemical (e.g., boron, phosphorus, sodium oxide), and an external force.
  • an elevated temperature e.g., temperatures at or below 2l00°C
  • a corrosive chemical e.g., boron, phosphorus, sodium oxide
  • At least one of the first electrode 301 and the second electrode 302 can be manufactured as a solid (e.g., single, monolithic) structure; however, in some embodiments, as discussed more fully below, a plurality of separate structures (e.g., bricks, blocks) can be combined (e.g., stacked) to provide at least a portion of at least one of the first electrode 301 and the second electrode 302. In some embodiments, constructing the electrodes 301, 302 from a plurality of separate structures (e.g., bricks, blocks) can help simplify and reduce costs of fabrication of the electrodes 301, 302.
  • a temperature of a rear face 305 of the first electrode 301 can be less than a temperature of the front face 303 of the first electrode 301.
  • the rear face 305 of the first electrode 301 and/or the rear face 306 of the second electrode 302 can be cooled with one or more of liquid (e.g., water), gas (e.g., air), solid (e.g., heat sink) to, for example, regulate a temperature of one or more electrical components (e.g., electrical leads 307, 308 and associated electrical components) electrically connected to the first electrode 301 and the second electrode 302 based on one or more of conduction heat transfer, convection heat transfer, and radiation heat transfer.
  • liquid e.g., water
  • gas e.g., air
  • solid e.g., heat sink
  • the first electrode 301 can be positioned in a first aperture 401 defining a first opening 403 in the wall 310 of the melting vessel 105
  • the second electrode 302 can be positioned in a second aperture 402 defining a second opening 404 in the wall 310 of the melting vessel 105.
  • the first aperture 401 can be positioned opposite the second aperture 402 with the first opening 403 facing the second opening 404.
  • the first opening 403 and the second opening 404 can be aligned along a common axis.
  • the front face 303 of the first electrode 301 can face the front face 304 of the second electrode 302 (e.g., be aligned along a common axis) with one or more surfaces of the front faces 303, 304 contacting the material 107, 121 contained within the containment area 315 of the melting vessel 105.
  • electric current 325 can pass from the front face 303 of the first electrode 301 positioned in the first opening 403 of the first aperture 401 through the material 107, 121 contained in the containment area 315, to the front face 304 of the second electrode 302 positioned in the second opening 404 of the second aperture 402.
  • electric current 325 can pass from the front face 304 of the second electrode 302 positioned in the second opening 404 of the second aperture 402, through the material 107, 121 contained in the containment area 315, to the front face 303 of the first electrode 301 positioned in the first opening 403 of the first aperture 401.
  • At least one of the front face 303 of the first electrode 301 and the front face 304 of the second electrode 302 can wear (e.g., degrade, reduce), for example, over a duration of time based at least on operation of the heating device 300 and contact with the material 107, 121.
  • the first electrode 301 can be selectively translated relative to the first opening 403 along an adjustment path extending in direction 351 to translate the front face 303 along the adjustment path in the direction 351.
  • translating the first electrode 301 relative to the first opening 403 in direction 351 can compensate for the structural degradation of the front face 303 caused by wear while operating the glass manufacturing apparatus 100.
  • the second electrode 302 can be selectively translated relative to the second opening 404 along an adjustment path extending in direction 352 to translate the front face 304 along the adjustment path in the direction 352. In some embodiments, translating the second electrode 302 relative to the second opening 404 in direction 352 can compensate for the structural degradation of the front face 304 caused by wear while operating the glass manufacturing apparatus 100
  • the inner surface 311, 312 of the wall 310 as well as the front face 303 of the first electrode 301 and the front face 304 of the second electrode 302 can define, at least in part, the containment area 315 of the melting vessel 105.
  • the front faces 303, 304 of the electrodes 301, 302 can be flush with the inner surface 311 of the wall 310.
  • the front faces 303, 304 of the electrodes 301, 302 can be positioned to be flush and/or translated in respective directions 351, 352 to be flush with the inner surface 311 of the wall 310 while operating the glass manufacturing apparatus 100.
  • the front faces 303, 304 of the electrodes 301, 302 can be positioned to be recessed or protruding and/or translated in respective directions 351, 352 to be recessed or protruding with respect to the inner surface 311 of the wall 310 while operating the glass manufacturing apparatus 100. Accordingly, in some embodiments, based at least in part on the conversion of the electric current 325 into heat energy, one or more features of the heating device 300 can operate to increase a temperature of the material 107, 121 and/or maintain a temperature of the material 107, 121 contained within the containment area 315.
  • one or more features of the heating device 300 can be provided, alone or in combination, with one or more containers (e.g., containment vessels), including containers not explicitly disclosed, to, for example, heat material, including material not explicitly disclosed, contained within a containment area of the one or more containers, without departing from the scope of the disclosure.
  • exemplary vessels employing the heating device 300 can process molten material in a variety of methods including but not limited to fining, conditioning, containing, stirring, allowing to chemically react, bubbling a gas therein, cooling, heating, forming, holding, and flowing.
  • one or more features of the heating device 300 can be provided, alone or in combination, with one or more features of the glass manufacturing apparatus 100 (FIG. 1) and the glass forming apparatus 101 including, but not limited to, the melting vessel 105, the storage bin 109, the standpipe 123, the fining vessel 127, the first connecting conduit 129, the mixing chamber 131, the delivery vessel 133, the second connecting conduit 135, the third connecting conduit 137, the delivery pipe 139, and the forming vessel 140 to, for example, heat material (e.g., batch material 107, molten material 121) contained within such features.
  • heat material e.g., batch material 107, molten material 121
  • the melting vessel 105 as well as other vessels incorporating the heating device 300 can include structure defining a wall of one or more profiles and shapes including but not limited to, a sphere, a rectangular box, a cylinder, a cone, or other three-dimensional shape oriented to include a containment area (e.g., volume) to contain material.
  • a containment area e.g., volume
  • the heating device 300 can be employed to heat molten material 121 contained within the containment area 315 of the melting vessel 105 with the understanding that, unless otherwise noted, one or more features of the heating device 300 can be employed, alone or in combination, in some embodiments, to heat material contained within a containment area of one or more other containers (e.g., containment vessels) in accordance with embodiments of the disclosure, without departing from the scope of the disclosure. Additionally, the heating device 300 can include a wide range of configurations.
  • the first electrode 301 and features associated with the first electrode 301 can be identical to the second electrode 302 and features associated with the second electrode 302.
  • embodiments of the electrodes 301, 302 and structures associated with the electrodes 301, 302 will be discussed with reference to the first electrode 301 with the understanding that, in some embodiments, such features and discussion can equally apply to the second electrode 302.
  • FIG. 5 shows a side view of the melting vessel 105 including the rear face 305 of the first electrode 301 of the heating device 300 along line 5-5 of FIG. 3 in accordance with embodiments of the disclosure.
  • FIGS. 6-12 show various exemplary embodiments of a partial cross-sectional view of the melting vessel 105 and the heating device 300 of FIG. 4 including methods of processing material 121 with the heating device 300.
  • the first electrode 301 can be defined as an electrode assembly 301 including a plurality of blocks 500.
  • fifteen blocks 501-515 are disclosed with the understanding that, in some embodiments, more or less blocks defining the plurality of blocks 500 can be provided without departing from the scope of the disclosure.
  • each block can be identical, one or more blocks can be a portion (e.g., half-block) of one or more identical blocks, and one or more blocks can be different from one or more other blocks.
  • providing identical blocks and/or one or more blocks as a portion (e.g., half-block) of one or more identical blocks can provide advantages with respect to at least one of manufacture and cost of the plurality of blocks 500 that may otherwise not be obtained, for example, by providing a plurality of different blocks or one, single block of relatively larger size.
  • a standard three-dimensional (right-hand) cartesian coordinate system is provided in FIGS. 3-17 with a first axis “X” extending in a first direction, a second axis“Y” extending in a second direction perpendicular to the first direction, and a third axis“Z” extending in a third direction perpendicular to the first direction and the second direction.
  • the coordinate system provides a basis from which at least one of a relative spatial coordinate and a relative orientation of one or more features of the disclosure can be determined in accordance with embodiments of the disclosure.
  • a different coordinate system can be provided to define at least one of a relative spatial coordinate and a relative orientation of one or more features of the disclosure without departing from the scope of the disclosure.
  • the plurality of blocks 500 can be stacked along the first axis“X” extending in the first direction.
  • the stacked blocks 500 can span a first distance“Dl” along the first axis“X”, a second distance“D2” along the second axis“Y” extending in the second direction perpendicular to the first direction, and a third distance“D3” along the third axis“Z” extending in the third direction perpendicular to the first direction and the second direction.
  • one or more of the distances“Dl”, “D2”, and“D3” can correspond to an entire distance along the respective axes“X’,“Y”,“Z” which one or more blocks 501-515 of the plurality of blocks 500 spans.
  • one or more of the distances“Dl”,“D2”, and“D3” can correspond to less than the entire distance (e.g., a partial distance) along the respective axes“X’,“Y”,“Z” which one or more blocks 501-515 of the plurality of blocks 500 spans.
  • block 501 can be stacked on half-block 502 and block 507; block 503 can be stacked on half-block 504 and block 508; and block 505 can be stacked on half- block 506 and block 509.
  • half-block 502 and block 507 can be stacked on block 503; and half-block 504 and block 508 can be stacked on block 505, thereby providing the electrode assembly 301 including a plurality of stacked blocks 500.
  • the first distance“Dl” and the second distance“D2” can define the front face 303 of the electrode assembly 301.
  • providing one or more half-blocks 502, 504, 506 (or other partial-blocks) stacked with one or more whole blocks 501, 503, 505 (or corresponding partial-blocks), can provide the electrode assembly 301 with a front face 303 contacting the molten material 121 contained in the containment area 315 of the vessel 105.
  • the front face 303 can define a planar surface of the electrode assembly 301.
  • other surface profiles including, but not limited to, non- planar surface profiles, angled surface profiles, staggered surface profiles, and stepped surface profiles can be provided in other embodiments based at least in part on the stacked configuration of the plurality of blocks 500 as well as relative positions and/or wear of the ends of the plurality of blocks 500 defining portions of the front face 303 of the electrode assembly 301 while operating the glass manufacturing apparatus 500.
  • a first block of the stacked blocks 500 can be offset (e.g., staggered) relative to a second block of the stacked blocks 500 along the third axis“Z”. For example, as shown in FIGS.
  • block 501 can be offset relative to half-block 502 along the third axis“Z” and block 507 can be offset relative to block 501 along the third axis“Z”; block 503 can be offset relative to half-block 504 along the third axis“Z” and block 508 can be offset relative to block 503 along the third axis“Z”; and block 505 can be offset relative to half-block 506 along the third axis“Z” and block 509 can be offset relative to block 505 along the third axis“Z”.
  • block 503 can be offset relative to half-block 502 along the third axis“Z” and block 507 can be offset relative to block 503 along the third axis“Z”; and block 505 can be offset relative to half-block 504 along the third axis“Z” and block 508 can be offset relative to block 505 along the third axis“Z”.
  • the opposing rear face 305 of the electrode assembly 301 can include a non-planar profile based at least on the relative offset of the stacked blocks 500.
  • the heating device 300 and the electrode assembly 301 can further include one or more frames 561, 562 circumscribing the stacked blocks 500 along the first axis“X” and the second axis“Y”.
  • each frame 561, 562 can impart a clamping force on the stacked blocks 500 along at least one of the first axis“X” and the second axis“Y”.
  • the frames 561, 562 can hold the plurality of blocks 500 together in a stacked configuration to provide a structurally stable stack of blocks 500.
  • the frames 561, 562 can force one or more faces (e.g., surfaces) of adjacent blocks into abutting relationship to provide electrical conductivity among the plurality of blocks 500.
  • the electrical lead 307 FIG. 3-5
  • the electrode assembly 301 can be electrically connected to the electrode assembly 301 and/or electrically connected to one or more of the frames 561, 562 which can, likewise, be electrically connected to one or more blocks of the plurality of blocks 500 of the electrode assembly 301.
  • the clamping force provided by the frames 561, 562 can force (e.g., push, press, maintain) adjacent, abutting faces of the plurality of blocks 500 together to provide an electrically conductive interface between the plurality of blocks 500.
  • electric current 325 (provided by the electrical lead 307) can pass from the front face 303 of the electrode assembly 301, through the material 121 contained in the containment area 315, thereby heating the material 121 based on Joule heating.
  • the frames 561, 562 can be selectively movable along a path (e.g., path 565 in FIG. 6 and FIG. 7) extending along the third axis“Z”.
  • the frames 561, 562 can be at least one of manually and automatically selectively moveable along one or more rails 550a, 555a, 550b, 555b of the heating device 300.
  • the frames 561, 562 can move along the rails 550a, 555a, 550b, 555b based on one or more of a rolling (e.g., wheeled) engagement, a geared engagement, a grooved engagement, a sliding engagement or other mechanical engagement or connection oriented to provide selective relative motion between the frames 561, 562 and the rails 550a, 555a, 550b, 555b.
  • frame 561 can be independently movable relative to frame 562 such that each frame 561, 562 can be independently and selectively movable along a path (e.g., path 565 in FIG. 6 and FIG. 7) extending along the third axis“Z”.
  • each frame 561, 562 can be independently and selectively movable along path 565 extending along the third axis“Z” relative to the rails 550a, 555a, 550b, 555b and/or relative to the plurality of blocks 500.
  • one or more frames 561, 562, providing the clamping force to the plurality of blocks 500 along at least one of the first axis“X” and the second axis“Y”, can be selectively translated relative to the first opening 403 along the adjustment path 565 extending in direction“Z” to translate the front face 303 of the electrode assembly 301 along the adjustment path 565 in direction“Z”.
  • FIG. 6 As schematically illustrated in FIG.
  • translating one or more frames 561, 562 that are clamping the plurality of blocks 500 of the electrode assembly 301 relative to the first opening 403 along path 565 can move the front face 303 of the electrode assembly 301 along the adjustment path 565 to compensate for structural degradation of the front face 303 of the electrode assembly 301 caused by wear while operating the glass manufacturing apparatus 100.
  • additional blocks 510, 511, 512 can be added (e.g., stacked) with the stacked blocks 500.
  • one or more additional blocks 510, 511, 512 can be added to replace and replenish structure of the electrode assembly 301, as illustrated in FIG. 9.
  • one or more frames 561, 562 providing the clamping force to the plurality of blocks 500 along at least one of the first axis“X” and the second axis“Y”, can be further selectively translated relative to the first opening 403 along the adjustment path 565 extending in direction“Z” to translate the front face 303 of the electrode assembly 301 along the adjustment path 565 in direction“Z” to compensate for further structural degradation of the front face 303 of the electrode assembly 301 caused by wear while operating the glass manufacturing apparatus 100.
  • FIG. 10 shows that after adding the one or more additional blocks 510, 511, 512 to the stacked blocks 500 of the electrode assembly 301.
  • additional blocks 513, 514, 515 can be added (e.g., stacked) with the stacked blocks 500.
  • additional blocks 513, 514, 515 can be added to replace and replenish structure of the electrode assembly 301.
  • the process of adding one or more additional blocks can be performed one time or a plurality of times while operating the glass manufacturing apparatus 100 to selectively and continually replace and replenish structure of the electrode assembly 301 as the front face 303 of the electrode assembly 301 wears and degrades.
  • the frames 561, 562 can include a fastener 575 operable to selectively apply the clamping force.
  • a fastener 575 operable to selectively apply the clamping force.
  • various embodiments of exemplary fasteners are provided in FIGS. 15- 17 with respect to frame 561 with the understanding that one or more fasteners, including fasteners not explicitly disclosed, can be provided in further embodiments to selectively and independently apply the clamping force to each of the frames 561, 562 without departing from the scope of the disclosure.
  • the fastener 575 can include a bolt 701 and a nut 702.
  • the bolt 701 and the nut 702 can mechanically connect a first portion 561a and a second portion 561b of the frame 561.
  • the bolt 701 and the nut 702 can connect a first bracket 576 of the first portion 561a of frame 561 with a second bracket 577 of the second portion 561b of frame 561.
  • operation e.g., loosening or tightening
  • operation of the nut 702 with respect to the bolt 701 can respectively increase or decrease a distance“d” between the first portion 561 and the second portion 561b of the frame 561.
  • the fastener 575 can include a hook 703 and a lever 704.
  • the hook 703 and the lever 704 can mechanically connect the first portion 561a and the second portion 561b of the frame 561.
  • the lever 704 and the hook 703 can connect the first bracket 576 of the first portion 561a of frame 561 with the second bracket 577 of the second portion 561b of frame 561.
  • operation (e.g., rotation along path 705) of the lever 704 with respect to the hook 703 can respectively decrease or increase the distance“d” between the first portion 561 and the second portion 561b of the frame 561.
  • the fastener 575 can include a tension spring 706.
  • the tension spring 706 can mechanically connect the first portion 561a and the second portion 561b of the frame 561.
  • the tension spring 706 can connect the first bracket 576 of the first portion 561a of frame 561 with the second bracket 577 of the second portion 561b of frame 561.
  • the tension spring 706 can impart a compressive force with respect to the first bracket 576 and the second bracket 577 that can decrease the distance“d” between the first portion 561 and the second portion 561b of the frame 561.
  • decreasing the distance“d” can increase (e.g., apply) the clamping force on the stacked blocks 500, and increasing the distance“d” can decrease (e.g., remove) the clamping force from the stacked blocks 500.
  • frame 561 can apply the clamping force to the stacked blocks 500 to hold the plurality of blocks 500 in the stacked configuration. Additionally, in some embodiments, the clamping force of frame 562 can be removed and frame 562 can then be translated in direction 566 to be positioned to receive additional blocks 510, 511, 512.
  • At least one frame e.g., frame 561
  • at least one other frame e.g., frame 562
  • the clamping force of at least one other frame can be removed to permit the un-clamped frame 562 to be translated relative to the stacked blocks 500 in direction 566.
  • the clamping force of frame 562 can then be applied to hold the additional blocks 510, 511, 512 in the stacked configuration with the existing blocks 501, 503, 505, 507, 508, 509, thereby defining the plurality of blocks 500 of the electrode assembly 301. Moreover, in some embodiments, once the clamping force of frame 562 has been applied, the clamping force of frame 561 can then be removed to permit the un clamped frame 561 to be translated relative to the stacked blocks 500 in direction 566.
  • the frames 561, 562 can be employed to selectively apply and/or remove the clamping force on the stacked blocks 500 of the electrode assembly 301 independent of each other and/or simultaneously with each other.
  • at least one frame 561, 562 can provide the clamping force to hold the blocks 500 in the stacked configuration and to ensure electrical contact between faces of the blocks 500 during, for example, an entire duration of time defining operation of the glass manufacturing apparatus 100.
  • one or more clamped frames e.g., frames 561, 562 in FIG. 6) can apply the clamping force to hold the blocks 500 in the stacked configuration while the electrode assembly 301 is stationary.
  • the clamped frames (e.g., frames 561, 562 in FIG. 6 and FIG. 7) can be translated relative to the first opening 403 along the adjustment path 565 extending in direction“Z” to translate the front face 303 of the electrode assembly 301 along the adjustment path 565 in direction“Z” to compensate for structural degradation of the front face 303 of the electrode assembly 301 caused by wear while operating the glass manufacturing apparatus 100.
  • the clamped frames e.g., frames 561, 562 in FIG.
  • the clamping force of frame 562 can be removed again and frame 562 can then be translated in direction 566 to be positioned to receive additional blocks 513, 514, 515 while frame 561 can apply the clamping force and hold the plurality of blocks 500 in the stacked configuration.
  • FIG. 11 shows that after translating the front face 303 of the electrode assembly 301 along the adjustment path 565 in direction“Z” to compensate for further structural degradation of the front face 303 of the electrode assembly 301 caused by wear while operating the glass manufacturing apparatus 100, the clamping force of frame 562 can be removed again and frame 562 can then be translated in direction 566 to be positioned to receive additional blocks 513, 514, 515 while frame 561 can apply the clamping force and hold the plurality of blocks 500 in the stacked configuration.
  • the clamping force of frame 562 can then be applied to hold the additional blocks 513, 514, 515 in the stacked configuration with the existing blocks 507, 508, 509, 510, 511, 512 thereby defining the plurality of blocks 500 of the electrode assembly 301.
  • the clamping force of frame 561 can then be removed to permit the un clamped frame 561 to be translated relative to the stacked blocks 500 while frame 562 applies the clamping force to hold the blocks 500 in the stacked configuration.
  • the clamped frames e.g., frames 561, 562 in FIG.
  • FIG. 13 An exemplary block 525 is shown in FIG. 13 with the understanding that, in some embodiments, one or more of the plurality of blocks 500 can be identical to the exemplary block 525. Moreover, in some embodiments, one or more of the plurality of blocks 500 can include one or more features that are the same as or similar to the features of the exemplary block 525 as well as one or more features that differ from features of the exemplary block 525, without departing from the scope of the disclosure. Likewise, in some embodiments, one or more of the plurality of blocks 500 can be provided as partial (e.g., one-quarter, one-third, half, two-thirds, three- quarters, etc.) blocks of exemplary block 525.
  • the block 525 can include a first surface 525d, 525e extending from a first end 525a of the block 525 to a second end 525b of the block 525.
  • the block 525 can include a second surface 525c opposing the first surface 525d, 525e and extending from the first end 525a of the block 525 to the second end 525b of the block 525.
  • a third surface 525f of the block 525 and an opposing fourth surface 525g of the block 525 can define respective outer boundaries of the block 525 within the first surface 525d, 525e, the second surface 525c, the first end 525a, and the second end 525b.
  • the first surface 525d, 525e can define a non-planar boundary of the block 525.
  • a first planar portion 525d of the surface can intersect a second planar portion 525e of the surface at a non-zero angle to define the non-planar boundary of the block 525.
  • at least one of the first planar portion 525d and the second planar portion 525e can extend at a non-perpendicular angle relative to the X-Y plane.
  • one or more planar and/or non-planar (e.g., curved, stepped, undulating, angled) portions of the first surface 525d, 525e can be provided to define the non-planar (e.g., curved, stepped, undulating, angled) boundary of the block 525 without departing from the scope of the disclosure.
  • the non- planar boundary of the first surface 525d, 525e of the block 525 can provide better electrical contact between adjacent, abutting blocks than, for example, a comparable planar boundary.
  • structural stability of the stack of blocks 500 can also be increased based at least in part on the offset (e.g., staggered) stacking of the blocks and the non-planar boundary defining one or more interfaces between immediately adjacent blocks as the electrode assembly 301 is provided in a stationary position and/or as the electrode assembly 301 is translated during operation of the glass manufacturing apparatus 100 as compared to, for example, a stack of blocks having comparable planar boundaries.
  • FIG. 14 shows an exemplary embodiment of a plurality of blocks 500 stacked along the first axis“X” and offset (e.g., staggered) along the third axis“Z” in accordance with embodiments of the disclosure.
  • a portion of electrode assembly 301 is provided including block 501, half-block 502, and blocks 507, 510 and 513.
  • block 501 can include a first end 501a, a second end 501b, a first surface 50 Id, 50 le defining the non-planar boundary of the block 501, a second surface 501c, and a third surface 501f as described with respect to the exemplary block 525 (FIG. 13).
  • half-block 502 can include a first end 502a, a second end 502b, a first surface 502e defining a portion of the non-planar boundary of the block 502, a second surface 502c, and a third surface 502f.
  • blocks 507, 510, 513 can include a first end 507a, 510a, 513a, a second end 507b, 510b, 513b, a first surface 507d, 507e, 510d, 510e, 513d, 513e defining the non-planar boundary of the blocks 507, 510, 513, a second surface 507c, 510c, 513c, and a third surface 507f, 510f, 513f as described with respect to the exemplary block 525 (FIG. 13).
  • a first dimension“dl” of block 501 defined along the third axis“Z” from end 501a to end 501b can be greater than a second dimension“d2” of block 502 defined along the third axis“Z” from end 502a to end 502b.
  • end 501b of the first block 501 can define a first portion of the first face 303 of the electrode assembly 301
  • end 502a of the second block 502 can define a second portion of the first face 303 of the electrode assembly 301.
  • at least a portion of the first face 303 can define a planar surface of the electrode assembly 301.
  • a third dimension“d3” of block 507 defined along the third axis“Z” from end 507a to end 507b can be greater than the second dimension“d3” of block 502.
  • the first dimension“dl” of block 501 can be equal to the third dimension“d3” of block 507.
  • the portion 50 le of the surface defining the non-planar boundary of block 501 can face the portion 502e of the surface defining at least a portion of the non-planar boundary of half-block 502.
  • the portion 501e of the surface defining the non-planar boundary of block 501 can abut the portion 502e of the surface defining at least a portion of the non-planar boundary of half-block 502 at an interface 521.
  • the portion 501d of the surface defining the non-planar boundary of block 501 can face the portion 507d of the surface defining the non-planar boundary of block 507.
  • the portion 50 Id of the surface defining the non-planar boundary of block 501 can abut the portion 507d of the surface defining the non-planar boundary of block 507 at an interface 571.
  • the portion 507e of the surface defining the non-planar boundary of block 507 can face the portion 510e of the surface defining the non- planar boundary of block 510.
  • the portion 507e of the surface defining the non-planar boundary of block 507 can abut the portion 510e of the surface defining the non-planar boundary of block 510 at an interface. It is to be understood that the staggered pattern of the stacked blocks 500 can be repeated with any number of blocks and/or partial blocks without departing from the scope of the disclosure.
  • the portion 513d of the surface defining the non-planar boundary of block 513 can face the portion 510d of the surface defining the non-planar boundary of block 510.
  • the portion 513d of the surface defining the non-planar boundary of block 513 can be positioned (e.g., added to the stack of blocks 500) to abut the portion 510d of the surface defining the non-planar boundary of block 510 at an interface (not shown).
  • end 501b of block 501 and end 502a of half-block 502 can be coplanar with the planar surface defining the front face 303 of the electrode 301.
  • end 501a of block 501 can face (e.g., abut) end 510b of block 510
  • end 502b of half-block 502 can face (e.g., abut) end 507a of block 507 at interface 527
  • end 513a of block 513 can face (e.g., be positioned to abut) end 507b of block 507.
  • the interface e.g., interfaces 521, 527, 571 between abutting surfaces of immediately adjacent stacked blocks 500 can provide an electrical connection between the plurality of blocks 500 defining the electrode assembly 301.
  • the process of stacking and/or adding blocks can be repeated to continually replace and replenish depleted electrode material with new electrode material without interrupting the manufacturing process.
  • Embodiments and the functional operations described herein can be implemented in digital electronic circuitry, or in computer software, firmware, or hardware, including the structures disclosed in this specification and their structural equivalents, or in combinations of one or more of them.
  • Embodiments described herein can be implemented as one or more computer program products, i.e., one or more modules of computer program instructions encoded on a tangible program carrier for execution by, or to control the operation of, data processing apparatus.
  • the tangible program carrier can be a computer readable medium.
  • the computer readable medium can be a machine-readable storage device, a machine-readable storage substrate, a memory device, or a combination of one or more of them.
  • processor or“controller” can encompass all apparatus, devices, and machines for processing data, including by way of example a programmable processor, a computer, or multiple processors or computers.
  • the processor can include, in addition to hardware, code that creates an execution environment for the computer program in question, e.g., code that constitutes processor firmware, a protocol stack, a database management system, an operating system, or a combination of one or more of them.
  • a computer program (also known as a program, software, software application, script, or code) can be written in any form of programming language, including compiled or interpreted languages, or declarative or procedural languages, and it can be deployed in any form, including as a standalone program or as a module, component, subroutine, or other unit suitable for use in a computing environment.
  • a computer program does not necessarily correspond to a file in a file system.
  • a program can be stored in a portion of a file that holds other programs or data (e.g., one or more scripts stored in a markup language document), in a single file dedicated to the program in question, or in multiple coordinated files (e.g., files that store one or more modules, sub programs, or portions of code).
  • a computer program can be deployed to be executed on one computer or on multiple computers that are located at one site or distributed across multiple sites and interconnected by a communication network.
  • the processes described herein can be performed by one or more programmable processors executing one or more computer programs to perform functions by operating on input data and generating output.
  • the processes and logic flows can also be performed by, and apparatus can also be implemented as, special purpose logic circuitry, e.g., an FPGA (field programmable gate array) or an ASIC (application specific integrated circuit) to name a few.
  • FPGA field programmable gate array
  • ASIC application specific integrated circuit
  • processors suitable for the execution of a computer program include, by way of example, both general and special purpose microprocessors, and any one or more processors of any kind of digital computer.
  • a processor will receive instructions and data from a read only memory or a random-access memory or both.
  • the essential elements of a computer are a processor for performing instructions and one or more data memory devices for storing instructions and data.
  • a computer will also include, or be operatively coupled to receive data from or transfer data to, or both, one or more mass storage devices for storing data, e.g., magnetic, magneto optical disks, or optical disks.
  • mass storage devices for storing data, e.g., magnetic, magneto optical disks, or optical disks.
  • a computer need not have such devices.
  • a computer can be embedded in another device, e.g., a mobile telephone, a personal digital assistant (PDA), to name just a few.
  • PDA personal digital assistant
  • Computer readable media suitable for storing computer program instructions and data include all forms data memory including nonvolatile memory, media and memory devices, including by way of example semiconductor memory devices, e.g., EPROM, EEPROM, and flash memory devices; magnetic disks, e.g., internal hard disks or removable disks; magneto optical disks; and CD ROM and DVD-ROM disks.
  • semiconductor memory devices e.g., EPROM, EEPROM, and flash memory devices
  • magnetic disks e.g., internal hard disks or removable disks
  • magneto optical disks e.g., CD ROM and DVD-ROM disks.
  • the processor and the memory can be supplemented by, or incorporated in, special purpose logic circuitry.
  • a computer having a display device, e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor, and the like for displaying information to the user and a keyboard and a pointing device, e.g., a mouse or a trackball, or a touch screen by which the user can provide input to the computer.
  • a display device e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor
  • a keyboard and a pointing device e.g., a mouse or a trackball, or a touch screen by which the user can provide input to the computer.
  • Other kinds of devices can be used to provide for interaction with a user as well; for example, input from the user can be received in any form, including acoustic, speech, or tactile input.
  • Embodiments described herein can be implemented in a computing system that includes a back end component, e.g., as a data server, or that includes a middleware component, e.g., an application server, or that includes a front end component, e.g., a client computer having a graphical user interface or a Web browser through which a user can interact with implementations of the subject matter described herein, or any combination of one or more such back end, middleware, or front end components.
  • the components of the system can be interconnected by any form or medium of digital data communication, e.g., a communication network. Examples of communication networks include a local area network (“LAN”) and a wide area network (“WAN”), e.g., the Internet.
  • LAN local area network
  • WAN wide area network
  • the computing system can include clients and servers.
  • a client and server are generally remote from each other and typically interact through a communication network.
  • the relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other.
  • Ranges can be expressed herein as from“about” one particular value, and/or to“about” another particular value. When such a range is expressed, embodiments include from the one particular value and/or to the other particular value. Similarly, when values are expressed as approximations, by use of the antecedent“about,” it will be understood that the particular value forms another embodiment. It will be further understood that the endpoints of each of the ranges are significant both in relation to the other endpoint, and independently of the other endpoint.
  • transitional phrase“comprising” While various features, elements or steps of particular embodiments may be disclosed using the transitional phrase“comprising,” it is to be understood that alternative embodiments, including those that may be described using the transitional phrases“consisting” or“consisting essentially of,” are implied. Thus, for example, implied alternative embodiments to an apparatus that comprises A+B+C include embodiments where an apparatus consists of A+B+C and embodiments where an apparatus consists essentially of A+B+C.

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Abstract

An electrode assembly includes a plurality of blocks stacked along a first axis. The plurality of blocks span a first distance along the first axis and a second distance along a second axis. The first distance and the second distance define a first face of the electrode assembly, and the plurality of blocks span a third distance from the first face of the electrode assembly to a second face of the electrode assembly along a third axis. A first dimension of a first block of the plurality of blocks is greater than a second dimension of a second block of the plurality of blocks. An apparatus includes the electrode assembly and a vessel. Methods of processing material in the vessel are also provided.

Description

APPARATUS AND METHOD FOR PROCESSING MATERIAL
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This application claims the benefit of priority under 35 U.S.C. § 119 of U.S. Provisional Application Serial No. 62/646556 filed on March 22, 2018, the content of which is relied upon and incorporated herein by reference in its entirety.
FIELD
[0002] The present disclosure relates generally to apparatus and methods for processing material and, more particularly, to an electrode assembly including a plurality of blocks, an apparatus including the electrode assembly and a vessel, and methods for processing material in the vessel including supplying electrical energy to the electrode assembly.
BACKGROUND
[0003] It is known to provide a glass manufacturing apparatus designed to produce a glass article from a quantity of molten material. Conventional glass manufacturing apparatus include a furnace including electrodes designed to process (e.g., melt, heat) batch material into a quantity of molten material.
SUMMARY
[0004] The following presents a simplified summary of the disclosure to provide a basic understanding of some embodiments described in the detailed description.
[0005] In some embodiments, an electrode assembly includes a plurality of blocks stacked along a first axis in a first direction. The plurality of blocks span a first distance along the first axis and a second distance along a second axis in a second direction perpendicular to the first direction. The first distance and the second distance define a first face of the electrode assembly, and the plurality of blocks span a third distance from the first face of the electrode assembly to a second face of the electrode assembly along a third axis in a third direction perpendicular to the first direction and the second direction. A first dimension of a first block of the plurality of blocks defined along the third axis from a first end of the first block to a second end of the first block is greater than a second dimension of a second block of the plurality of blocks defined along the third axis from a first end of the second block to a second end of the second block.
[0006] In some embodiments, the first end of the first block defines a first portion of the first face, and the first end of the second block defines a second portion of the first face.
[0007] In some embodiments, the first face defines a planar surface of the electrode assembly.
[0008] In some embodiments, the first block includes a first surface extending from the first end of the first block to the second end of the first block, and the first surface defines a non-planar boundary of the first block.
[0009] In some embodiments, the second block includes a second surface extending from the first end of the second block to the second end of the second block, and a first portion of the first surface of the first block faces a portion of the second surface of the second block.
[0010] In some embodiments, the first portion of the first surface of the first block abuts the portion of the second surface of the second block at a first interface.
[0011] In some embodiments, a third dimension of a third block of the plurality of blocks defined along the third axis from a first end of the third block to a second end of the third block is greater than the second dimension, and the first end of the third block faces the second end of the second block.
[0012] In some embodiments, the first dimension equals the third dimension.
[0013] In some embodiments, the third block includes a third surface extending from the first end of the third block to the second end of the third block, the third surface defines a non-planar boundary of the third block, and a second portion of the first surface of the first block faces a portion of the third surface of the third block.
[0014] In some embodiments, the first end of the third block abuts the second end of the second block at a second interface, and the second portion of the first surface of the first block abuts the portion of the third surface of the third block at a third interface.
[0015] In some embodiments, the electrode assembly further includes a first frame circumscribing the plurality of blocks along the first axis and the second axis.
[0016] In some embodiments, the first frame is movable along the third axis. [0017] In some embodiments, the first frame applies a first clamping force on the plurality of blocks along at least one of the first axis and the second axis.
[0018] In some embodiments, the first frame comprises a first fastener oriented to at least one of increase and decrease the first clamping force.
[0019] In some embodiments, the electrode assembly includes a second frame circumscribing the plurality of blocks along the first axis and the second axis. The second frame is movable along the third axis, the second frame applies a second clamping force on the plurality of blocks along at least one of the first axis and the second axis, and the second frame includes a second fastener oriented to at least one of increase and decrease the second clamping force. The first frame and the second frame are independently movable along the third axis.
[0020] In some embodiments, an apparatus includes the electrode assembly and a vessel including at least one wall defining a containment area of the vessel. The at least one wall includes an aperture defining an opening receiving at least a portion of the electrode assembly.
[0021] In some embodiments, the vessel includes a melting vessel for a glass manufacturing system.
[0022] In some embodiments, a position of the electrode assembly is adjustable relative to the opening of the wall.
[0023] In some embodiments, a method of processing material in the vessel includes supplying electrical energy to the electrode assembly and heating the material in the containment area of the vessel with the electrical energy.
[0024] In some embodiments, the method includes adjusting a position of the electrode assembly relative to the opening of the wall while heating the material.
BRIEF DESCRIPTION OF THE DRAWINGS
[0025] These and other features, embodiments and advantages are better understood when the following detailed description is read with reference to the accompanying drawings, in which:
[0026] FIG. 1 schematically illustrates an exemplary embodiment of a glass manufacturing apparatus in accordance with embodiments of the disclosure;
[0027] FIG. 2 shows a perspective cross-sectional view of the glass manufacturing apparatus along line 2-2 of FIG. 1 including a glass forming apparatus in accordance with embodiments of the disclosure; [0028] FIG. 3 shows a plan view of a portion of the glass manufacturing apparatus along line 3-3 of FIG. 1 including a vessel and a heating device in accordance with embodiments of the disclosure;
[0029] FIG. 4 shows a cross-sectional view of the vessel and the heating device along line 4-4 of FIG. 3 in accordance with embodiments of the disclosure;
[0030] FIG. 5 shows a side view of the vessel of the glass manufacturing apparatus along line 5-5 of FIG. 3 including an electrode assembly in accordance with embodiments of the disclosure;
[0031] FIG. 6 shows a partial cross-sectional view of the vessel and the heating device of FIG. 4 including an electrode assembly including a plurality of blocks in accordance with embodiments of the disclosure;
[0032] FIG. 7 shows an exemplary embodiment of the partial cross-sectional view of the electrode assembly including the plurality of blocks of FIG. 6 in accordance with embodiments of the disclosure;
[0033] FIG. 8 shows an exemplary embodiment of the partial cross-sectional view of the electrode assembly including the plurality of blocks of FIG. 7 in accordance with embodiments of the disclosure;
[0034] FIG. 9 shows an exemplary embodiment of the partial cross-sectional view of the electrode assembly including the plurality of blocks of FIG. 8 in accordance with embodiments of the disclosure;
[0035] FIG. 10 shows an exemplary embodiment of the partial cross-sectional view of the electrode assembly including the plurality of blocks of FIG. 9 in accordance with embodiments of the disclosure;
[0036] FIG. 11 shows an exemplary embodiment of the partial cross-sectional view of the electrode assembly including the plurality of blocks of FIG. 10 in accordance with embodiments of the disclosure;
[0037] FIG. 12 shows an exemplary embodiment of the partial cross-sectional view of the electrode assembly including the plurality of blocks of FIG. 11 in accordance with embodiments of the disclosure;
[0038] FIG. 13 shows a perspective view of an exemplary block of the plurality of blocks of the electrode assembly of FIGS. 6-12 in accordance with embodiments of the disclosure; [0039] FIG. 14 shows an exemplary embodiment of a plurality of exemplary blocks of FIG. 13 stacked in accordance with embodiments of the disclosure;
[0040] FIG. 15 shows an exemplary embodiment of a frame and a fastener of the electrode assembly at view 15 of FIG. 5 in accordance with embodiments of the disclosure;
[0041] FIG. 16 shows an alternate exemplary embodiment of a frame and a fastener of the electrode assembly at view 15 of FIG. 5 in accordance with embodiments of the disclosure; and
[0042] FIG. 17 shows an alternate exemplary embodiment of a frame and a fastener of the electrode assembly at view 15 of FIG. 5 in accordance with embodiments of the disclosure.
DETAILED DESCRIPTION
[0043] Embodiments will now be described more fully hereinafter with reference to the accompanying drawings in which exemplary embodiments are shown. Whenever possible, the same reference numerals are used throughout the drawings to refer to the same or like parts. However, this disclosure may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
[0044] It is to be understood that specific embodiments disclosed herein are intended to be exemplary and therefore non-limiting. For purposes of the disclosure, in some embodiments, a glass manufacturing apparatus can optionally include a glass forming apparatus that forms a glass article (e.g., a glass ribbon and/or a glass sheet) from a quantity of molten material. For example, in some embodiments, the glass manufacturing apparatus can optionally include a glass forming apparatus such as a slot draw apparatus, float bath apparatus, down-draw apparatus, up-draw apparatus, press-rolling apparatus, or other glass forming apparatus that forms a glass article. In some embodiments, the glass article can include one or more optical characteristics desirable with respect to a variety of articles (e.g., ophthalmic articles, display articles). For example, in some embodiments, the glass manufacturing apparatus can be employed to provide display articles (e.g., display glass sheets) that can be employed in a variety of display applications including, but not limited to, liquid crystal displays (LCDs), electrophoretic displays (EPD), organic light emitting diode displays (OLEDs), plasma display panels (PDPs), and other electronic displays. [0045] As schematically illustrated in FIG. 1, in some embodiments, an exemplary glass manufacturing apparatus 100 can include a glass forming apparatus 101 including a forming vessel 140 designed to produce a glass ribbon 103 from a quantity of molten material 121. In some embodiments, the glass ribbon 103 can include a central portion 152 disposed between opposite, relatively thick edge beads formed along a first outer edge 153 and a second outer edge 155 of the glass ribbon 103. Additionally, in some embodiments, a glass sheet 104 can be separated from the glass ribbon 103 along a separation path 151 by a glass separator 149 (e.g., scribe, score wheel, diamond tip, laser, etc.). In some embodiments, before or after separation of the glass sheet 104 from the glass ribbon 103, the relatively thick edge beads formed along the first outer edge 153 and the second outer edge 155 can be removed to provide the central portion 152 as a high-quality glass sheet 104 having a uniform thickness. In some embodiments, the resulting high-quality glass sheet 104 can then be at least one of processed and employed in a variety of applications.
[0046] In some embodiments, the glass manufacturing apparatus 100 can include a melting vessel 105 oriented to receive batch material 107 from a storage bin 109. The batch material 107 can be introduced by a batch delivery device 111 powered by a motor 113. In some embodiments, an optional controller 115 can be operated to activate the motor 113 to introduce a desired amount of batch material 107 into the melting vessel 105, as indicated by arrow 117. The melting vessel 105 can heat the batch material 107 to provide molten material 121. In some embodiments, a glass melt probe 119 can be employed to measure a level of molten material 121 within a standpipe 123 and communicate the measured information to the controller 115 by way of a communication line 125.
[0047] Additionally, in some embodiments, the glass manufacturing apparatus 100 can include a first conditioning station including a fining vessel 127 located downstream from the melting vessel 105 and coupled to the melting vessel 105 by way of a first connecting conduit 129. In some embodiments, molten material 121 can be gravity fed from the melting vessel 105 to the fining vessel 127 by way of the first connecting conduit 129. For example, in some embodiments, gravity can drive the molten material 121 to pass through an interior pathway of the first connecting conduit 129 from the melting vessel 105 to the fining vessel 127. Additionally, in some embodiments, bubbles can be removed from the molten material 121 within the fining vessel 127 by various techniques.
[0048] In some embodiments, the glass manufacturing apparatus 100 can further include a second conditioning station including a mixing chamber 131 that can be located downstream from the fining vessel 127. The mixing chamber 131 can be employed to provide a homogenous composition of molten material 121, thereby reducing or eliminating inhomogeneity that may otherwise exist within the molten material 121 exiting the fining vessel 127. As shown, the fining vessel 127 can be coupled to the mixing chamber 131 by way of a second connecting conduit 135. In some embodiments, molten material 121 can be gravity fed from the fining vessel 127 to the mixing chamber 131 by way of the second connecting conduit 135. For example, in some embodiments, gravity can drive the molten material 121 to pass through an interior pathway of the second connecting conduit 135 from the fining vessel 127 to the mixing chamber 131.
[0049] Additionally, in some embodiments, the glass manufacturing apparatus 100 can include a third conditioning station including a delivery vessel 133 that can be located downstream from the mixing chamber 131. In some embodiments, the delivery vessel 133 can condition the molten material 121 to be fed into an inlet conduit 141. For example, the delivery vessel 133 can function as an accumulator and/or flow controller to adjust and provide a consistent flow of molten material 121 to the inlet conduit 141. As shown, the mixing chamber 131 can be coupled to the delivery vessel 133 by way of a third connecting conduit 137. In some embodiments, molten material 121 can be gravity fed from the mixing chamber 131 to the delivery vessel 133 by way of the third connecting conduit 137. For example, in some embodiments, gravity can drive the molten material 121 to pass through an interior pathway of the third connecting conduit 137 from the mixing chamber 131 to the delivery vessel 133. As further illustrated, in some embodiments, a delivery pipe 139 (e.g., downcomer) can be positioned to deliver molten material 121 to the inlet conduit 141 of the forming vessel 140.
[0050] Various embodiments of forming vessels can be provided in accordance with features of the disclosure including a forming vessel with a wedge for fusion drawing the glass ribbon, a forming vessel with a slot to slot draw the glass ribbon, or a forming vessel provided with press rolls to press roll the glass ribbon from the forming vessel. By way of illustration, the forming vessel 140 shown and disclosed below can be provided to fusion draw molten material 121 off a root 145 of a forming wedge 209 to produce the glass ribbon 103. For example, in some embodiments, the molten material 121 can be delivered from the inlet conduit 141 to the forming vessel 140. The molten material 121 can then be formed into the glass ribbon 103 based at least in part on the structure of the forming vessel 140. For example, as shown, the molten material 121 can be drawn off the bottom edge (e.g., root 145) of the forming vessel 140 along a draw path extending in a draw direction 157 of the glass manufacturing apparatus 100. In some embodiments, edge directors 163a, 163b can direct the molten material 121 off the forming vessel 140 and define, at least in part, a width“W” of the glass ribbon 103. In some embodiments, the width “W” of the glass ribbon 103 can extend between the first outer edge 153 of the glass ribbon 103 and the second outer edge 155 of the glass ribbon 103.
[0051] FIG. 2 shows a cross-sectional perspective view of the glass manufacturing apparatus 100 along line 2-2 of FIG. 1. In some embodiments, the forming vessel 140 can include a trough 201 oriented to receive the molten material 121 from the inlet conduit 141. For illustrative purposes, cross-hatching of the molten material 121 is removed from FIG. 2 for clarity. The forming vessel 140 can further include the forming wedge 209 including a pair of downwardly inclined converging surface portions 207a, 207b extending between opposed ends 210a, 210b (See FIG. 1) of the forming wedge 209. The pair of downwardly inclined converging surface portions 207a, 207b of the forming wedge 209 can converge along the draw direction 157 to intersect along a bottom edge of the forming wedge 209 to define the root 145 of the forming vessel 140. A draw plane 213 of the glass manufacturing apparatus 100 can extend through the root 145 along the draw direction 157. In some embodiments, the glass ribbon 103 can be drawn in the draw direction 157 along the draw plane 213. As shown, the draw plane 213 can bisect the forming wedge 209 through the root 145 although, in some embodiments, the draw plane 213 can extend at other orientations relative to the root 145.
[0052] Additionally, in some embodiments, the molten material 121 can flow in a direction 159 into the trough 201 of the forming vessel 140. The molten material 121 can then overflow from the trough 201 by simultaneously flowing over corresponding weirs 203a, 203b and downward over the outer surfaces 205a, 205b of the corresponding weirs 203a, 203b. Respective streams of molten material 121 can then flow along the downwardly inclined converging surface portions 207a, 207b of the forming wedge 209 to be drawn off the root 145 of the forming vessel 140, where the flows converge and fuse into the glass ribbon 103. The glass ribbon 103 can then be fusion drawn off the root 145 in the draw plane 213 along the draw direction 157. In some embodiments, the glass separator 149 (see FIG. 1) can then subsequently separate the glass sheet 104 from the glass ribbon 103 along the separation path 151. As illustrated, in some embodiments, the separation path 151 can extend along the width“W” of the glass ribbon 103 between the first outer edge 153 and the second outer edge 155. Additionally, in some embodiments, the separation path 151 can extend perpendicular to the draw direction 157 of the glass ribbon 103. Moreover, in some embodiments, the draw direction 157 can define a direction along which the glass ribbon 103 can be fusion drawn from the forming vessel 140.
[0053] As shown in FIG. 2, the glass ribbon 103 can be drawn from the root 145 with a first major surface 215a of the glass ribbon 103 and a second major surface 215b of the glass ribbon 103 facing opposite directions and defining a thickness“T” (e.g., average thickness) of the glass ribbon 103. In some embodiments, the thickness “T’ of the glass ribbon 103 can be less than or equal to about 2 millimeters (mm), less than or equal to about 1 millimeter, less than or equal to about 0.5 millimeters, for example, less than or equal to about 300 micrometers (pm), less than or equal to about 200 micrometers, or less than or equal to about 100 micrometers, although other thicknesses may be provided in further embodiments. For example, in some embodiments, the thickness“T’ of the glass ribbon 103 can be from about 50 pm to about 750 pm, from about 100 pm to about 700 pm, from about 200 pm to about 600 pm, from about 300 pm to about 500 pm, from about 50 pm to about 500 pm, from about 50 pm to about 700 pm, from about 50 pm to about 600 pm, from about 50 pm to about 500 pm, from about 50 pm to about 400 pm, from about 50 pm to about 300 pm, from about 50 pm to about 200 pm, from about 50 pm to about 100 pm, including all ranges and subranges of thicknesses therebetween. In addition, the glass ribbon 103 can include a variety of compositions including, but not limited to, soda- lime glass, borosilicate glass, alumino-borosilicate glass, alkali-containing glass, or alkali-free glass. [0054] FIG. 3 shows a plan view of a portion of the glass manufacturing apparatus 100 including the melting vessel 105 along line 3-3 of FIG. 1, with a top portion (e.g., lid, roof, ceiling) of the melting vessel 105 removed for clarity. Thus, unless otherwise noted, it is to be understood that, in some embodiments, the melting vessel 105 can include a fixed or removable top portion without departing from the scope of the disclosure. Additionally, unless otherwise noted, in some embodiments, the top portion of the melting vessel 105 can be open to, for example, the environment outside of the melting vessel 105, and a free surface of the molten material 121 can face the open top portion. In some embodiments, the melting vessel 105 can include a wall 310 including an inner surface 311, 312 defining, at least in part, a containment area 315 (e.g., a volume) of the melting vessel 105. For example, in some embodiments, a sidewall inner surface 311 and a bottom wall inner surface 312 can define, at least in part, the containment area 315 of the melting vessel 105. As shown, in some embodiments, the containment area 315 can contain material (e.g., batch material 107, molten material 121); however, unless otherwise noted, it is to be understood that the melting vessel 105 can be empty (e.g., provided without material) in some embodiments, without departing from the scope of the disclosure.
[0055] In some embodiments, the wall 310 of the melting vessel 105 can include (e.g., be manufactured from) metallic and/or non-metallic materials including but not limited to one or more of a thermal insulating refractory material (e.g., ceramic, silicon carbide, zirconia, zircon, chromium oxide). Additionally, in some embodiments the inner surface 311, 312 of the melting vessel 105 can include a layer (not shown) of corrosion resistant material (e.g., platinum, platinum alloys) to provide a corrosion resistant barrier between the material 107, 121 contained within the containment area 315 and the wall 310. In some embodiments, the wall 310 of the melting vessel 105 can include material selected to resist structural degradation and deformation (e.g., warp, sag, creep, fatigue, corrosion, breakage, cracking, thermal shock, mechanical shock, etc.) caused by exposure to one or more of an elevated temperature (e.g., temperatures at or below 2l00°C), a corrosive chemical (e.g., boron, phosphorus, sodium oxide), and an external force. In some embodiments, the wall 310 can be manufactured as a solid, monolithic structure; however, in some embodiments, a plurality of separate structures (e.g., bricks) can be combined (e.g., stacked) to provide at least a portion of the wall 310. For purposes of the disclosure, regardless of the manner in which the wall 310 is constructed, a container (e.g., containment vessel) can include an inner surface 311, 312 defining at least a portion of a containment area 315 oriented to contain material 107, 121 within the containment area 315 without departing from the scope of the disclosure.
[0056] As indicated by arrow 117, in some embodiments, the batch material 107 can be introduced by the batch delivery device 111 into the containment area 315 of the melting vessel 105. In some embodiments, the melting vessel 105 can heat the batch material 107 to provide molten material 121 within the containment area 315. Additionally, in some embodiments, the melting vessel 105 can be operable to raise or lower the temperature of the molten material 121 contained within the containment area 315. For example, in some embodiments, the glass manufacturing apparatus 100 can include a heating device 300 (e.g., heater) that can include a first electrode 301 and a second electrode 302 operable to heat (e.g., melt) the batch material 107 to provide the molten material 121. In some embodiments, the first electrode 301 and the second electrode 302 can be identical to one another. Likewise, in some embodiments, structures and components associated and/or operable with the first electrode 301 can be identical to structures and components associated and/or operable with the second electrode 302. As such, unless otherwise noted, for purposes of the disclosure, features of the first electrode 301 as well as structures and components associated and/or operable with the first electrode 301 can equally apply to features of the second electrode 302 as well as structures and components associated and/or operable with the second electrode 302. Furthermore, although not shown, in some embodiments, features of the second electrode 302 as well as structures and components associated and/or operable with the second electrode 302 may not be identical to corresponding features of the first electrode 301 as well as corresponding structures and components associated and/or operable with the first electrode 301.
[0057] In some embodiments, one or more additional heating devices (not shown) can be provided to, for example, initially melt the batch material 107 to provide the molten material 121. In some embodiments, the heating device 300 including the first electrode 301 and the second electrode 302 can then be employed to further melt the batch material 107 and/or to further heat the molten material 121. Moreover, in some embodiments one or more additional heating devices (not shown) including but not limited to gas heaters, electric heaters, and resistance heaters can be provided, in combination with the heating device 300, to provide additional heat to the material 107, 121 contained within the containment area 315 of the melting vessel 105 without departing from the scope of the disclosure.
[0058] In some embodiments, the heating device 300 can include an electrical circuit including a first electrical lead 307 electrically connected to the first electrode 301 and a second electrical lead 308 electrically connected to the second electrode 302. In some embodiments, the material (e.g., batch material 107, molten material 121) can include material properties that cause the material to behave as an electrical resistor which converts an electric current 325 passing through the material 107, 121 into heat energy based at least on the principle of Joule heating. Accordingly, in some embodiments, the Joule heating can be based at least in part on the Joule law (P = I2 x R), where“P” is the electrical heating power,“I” is the electric current 325, and“R” is the electrical resistivity of the material through which the electric current 325 passes. For example, in some embodiments, electric current 325 (provided by first electrical lead 307) can pass from a front face 303 of the first electrode 301, through the material 107, 121 contained in the containment area 315, to a front face 304 of the second electrode 302. Likewise, in some embodiments, electric current 325 (provided by second electrical lead 308) can pass from the front face 304 of the second electrode 302, through the material 107, 121 contained in the containment area 315, to the front face 303 of the first electrode 301. Accordingly, in some embodiments, based at least in part on the conversion of the electric current 325 into heat energy, one or more features of the heating device 300 can operate to increase a temperature of the material 107, 121 and/or maintain a temperature of the material 107, 121 contained within the containment area 315 while operating the glass manufacturing apparatus 100
[0059] In some embodiments, the heating device 300 can be employed to, for example, at least one of control and reduce temperature fluctuations and temperature gradients of the material 107, 121 contained within the containment area 315 of the melting vessel 105. For example, in some embodiments, one or more features of the heating device 300 can uniformly heat the batch material 107 to provide the molten material 121 contained within the vessel 105 with a uniform, controlled temperature. The uniform, controlled temperature of the molten material 121 can, in some embodiments, provide a better quality glass ribbon 103 relative to glass ribbons formed with molten material 121 that includes temperature gradients and/or temperature fluctuations. For example, as indicated by arrow 317, in some embodiments, the molten material 121 can flow through the containment area 315 (e.g., across the electric current 325) while being heated by the heating device 300. In some embodiments, the molten material 121 can then be provided from the vessel 105 to the glass forming apparatus 101 (e.g., via the first connecting conduit 129) for further processing to, for example, form the glass ribbon 103 (See FIG. 1).
[0060] In some embodiments, at least one of the first electrode 301 and the second electrode 302 can include (e.g., be manufactured from) metallic and/or non- metallic materials including but not limited to one or more of tin oxide, carbon, zirconia, molybdenum, platinum, and platinum alloys. In some embodiments, the front face 303 of the first electrode 301 and the front face 304 of the second electrode 302 can contact the material 107, 121 contained within the containment area 315 of the melting vessel 105. Accordingly, in some embodiments, at least one of the first electrode 301 and the second electrode 302 can include material selected to resist structural degradation and deformation (e.g., warp, sag, creep, fatigue, corrosion, breakage, cracking, thermal shock, mechanical shock, etc.) caused by exposure to one or more of an elevated temperature (e.g., temperatures at or below 2l00°C), a corrosive chemical (e.g., boron, phosphorus, sodium oxide), and an external force. Moreover, in some embodiments, at least one of the first electrode 301 and the second electrode 302 can be manufactured as a solid (e.g., single, monolithic) structure; however, in some embodiments, as discussed more fully below, a plurality of separate structures (e.g., bricks, blocks) can be combined (e.g., stacked) to provide at least a portion of at least one of the first electrode 301 and the second electrode 302. In some embodiments, constructing the electrodes 301, 302 from a plurality of separate structures (e.g., bricks, blocks) can help simplify and reduce costs of fabrication of the electrodes 301, 302.
[0061] In some embodiments, based at least on the heat energy provided by electric current 325 to the material 107, 121 contained within the containment area 315 of the melting vessel 105, a temperature of a rear face 305 of the first electrode 301 can be less than a temperature of the front face 303 of the first electrode 301. Likewise, in some embodiments, based at least on the heat energy provided by electric current 325 to the material 107, 121 contained within the containment area 315 of the melting vessel 105, a temperature of a rear face 306 of the second electrode
302 can be less than a temperature of the front face 304 of the second electrode 302. Additionally, in some embodiments, the rear face 305 of the first electrode 301 and/or the rear face 306 of the second electrode 302 can be cooled with one or more of liquid (e.g., water), gas (e.g., air), solid (e.g., heat sink) to, for example, regulate a temperature of one or more electrical components (e.g., electrical leads 307, 308 and associated electrical components) electrically connected to the first electrode 301 and the second electrode 302 based on one or more of conduction heat transfer, convection heat transfer, and radiation heat transfer.
[0062] As further illustrated in FIG. 4, which shows a cross-sectional view of the melting vessel 105 along line 4-4 of FIG. 3, in some embodiments the first electrode 301 can be positioned in a first aperture 401 defining a first opening 403 in the wall 310 of the melting vessel 105, and the second electrode 302 can be positioned in a second aperture 402 defining a second opening 404 in the wall 310 of the melting vessel 105. In some embodiments, the first aperture 401 can be positioned opposite the second aperture 402 with the first opening 403 facing the second opening 404. For example, in some embodiments, the first opening 403 and the second opening 404 can be aligned along a common axis. Additionally, in some embodiments, the front face 303 of the first electrode 301 can face the front face 304 of the second electrode 302 (e.g., be aligned along a common axis) with one or more surfaces of the front faces 303, 304 contacting the material 107, 121 contained within the containment area 315 of the melting vessel 105. Accordingly, in some embodiments, electric current 325 can pass from the front face 303 of the first electrode 301 positioned in the first opening 403 of the first aperture 401 through the material 107, 121 contained in the containment area 315, to the front face 304 of the second electrode 302 positioned in the second opening 404 of the second aperture 402. Likewise, in some embodiments, electric current 325 can pass from the front face 304 of the second electrode 302 positioned in the second opening 404 of the second aperture 402, through the material 107, 121 contained in the containment area 315, to the front face 303 of the first electrode 301 positioned in the first opening 403 of the first aperture 401.
[0063] In some embodiments, at least one of the front face 303 of the first electrode 301 and the front face 304 of the second electrode 302 can wear (e.g., degrade, reduce), for example, over a duration of time based at least on operation of the heating device 300 and contact with the material 107, 121. Accordingly, as discussed more fully below, in some embodiments, the first electrode 301 can be selectively translated relative to the first opening 403 along an adjustment path extending in direction 351 to translate the front face 303 along the adjustment path in the direction 351. In some embodiments, translating the first electrode 301 relative to the first opening 403 in direction 351 can compensate for the structural degradation of the front face 303 caused by wear while operating the glass manufacturing apparatus 100. Likewise, in some embodiments, the second electrode 302 can be selectively translated relative to the second opening 404 along an adjustment path extending in direction 352 to translate the front face 304 along the adjustment path in the direction 352. In some embodiments, translating the second electrode 302 relative to the second opening 404 in direction 352 can compensate for the structural degradation of the front face 304 caused by wear while operating the glass manufacturing apparatus 100
[0064] In some embodiments, the inner surface 311, 312 of the wall 310 as well as the front face 303 of the first electrode 301 and the front face 304 of the second electrode 302 can define, at least in part, the containment area 315 of the melting vessel 105. Additionally, in some embodiments, the front faces 303, 304 of the electrodes 301, 302 can be flush with the inner surface 311 of the wall 310. For example, in some embodiments, the front faces 303, 304 of the electrodes 301, 302 can be positioned to be flush and/or translated in respective directions 351, 352 to be flush with the inner surface 311 of the wall 310 while operating the glass manufacturing apparatus 100. In addition or alternatively, in some embodiments, the front faces 303, 304 of the electrodes 301, 302 can be positioned to be recessed or protruding and/or translated in respective directions 351, 352 to be recessed or protruding with respect to the inner surface 311 of the wall 310 while operating the glass manufacturing apparatus 100. Accordingly, in some embodiments, based at least in part on the conversion of the electric current 325 into heat energy, one or more features of the heating device 300 can operate to increase a temperature of the material 107, 121 and/or maintain a temperature of the material 107, 121 contained within the containment area 315.
[0065] Moreover, although described with respect to features of the melting vessel 105, unless otherwise noted, it is to be understood that, in some embodiments, one or more features of the heating device 300 can be provided, alone or in combination, with one or more containers (e.g., containment vessels), including containers not explicitly disclosed, to, for example, heat material, including material not explicitly disclosed, contained within a containment area of the one or more containers, without departing from the scope of the disclosure. In some embodiments, exemplary vessels employing the heating device 300 can process molten material in a variety of methods including but not limited to fining, conditioning, containing, stirring, allowing to chemically react, bubbling a gas therein, cooling, heating, forming, holding, and flowing.
[0066] For example in some embodiments one or more features of the heating device 300 can be provided, alone or in combination, with one or more features of the glass manufacturing apparatus 100 (FIG. 1) and the glass forming apparatus 101 including, but not limited to, the melting vessel 105, the storage bin 109, the standpipe 123, the fining vessel 127, the first connecting conduit 129, the mixing chamber 131, the delivery vessel 133, the second connecting conduit 135, the third connecting conduit 137, the delivery pipe 139, and the forming vessel 140 to, for example, heat material (e.g., batch material 107, molten material 121) contained within such features. Moreover, although the melting vessel 105 is illustrated as a substantially cubic structure in FIG. 3 and FIG. 4, unless otherwise noted, it is to be understood that, in some embodiments, the melting vessel 105 as well as other vessels incorporating the heating device 300 can include structure defining a wall of one or more profiles and shapes including but not limited to, a sphere, a rectangular box, a cylinder, a cone, or other three-dimensional shape oriented to include a containment area (e.g., volume) to contain material.
[0067] Exemplary embodiments of an exemplary heating device 300 will now be described with respect to FIGS. 5-17. In some embodiments, the heating device 300 can be employed to heat molten material 121 contained within the containment area 315 of the melting vessel 105 with the understanding that, unless otherwise noted, one or more features of the heating device 300 can be employed, alone or in combination, in some embodiments, to heat material contained within a containment area of one or more other containers (e.g., containment vessels) in accordance with embodiments of the disclosure, without departing from the scope of the disclosure. Additionally, the heating device 300 can include a wide range of configurations. Therefore, in some embodiments, the first electrode 301 and features associated with the first electrode 301 can be identical to the second electrode 302 and features associated with the second electrode 302. As such, embodiments of the electrodes 301, 302 and structures associated with the electrodes 301, 302 will be discussed with reference to the first electrode 301 with the understanding that, in some embodiments, such features and discussion can equally apply to the second electrode 302.
[0068] FIG. 5 shows a side view of the melting vessel 105 including the rear face 305 of the first electrode 301 of the heating device 300 along line 5-5 of FIG. 3 in accordance with embodiments of the disclosure. Additionally, FIGS. 6-12 show various exemplary embodiments of a partial cross-sectional view of the melting vessel 105 and the heating device 300 of FIG. 4 including methods of processing material 121 with the heating device 300. In some embodiments, the first electrode 301 can be defined as an electrode assembly 301 including a plurality of blocks 500. With respect to FIGS. 5-12, fifteen blocks 501-515 are disclosed with the understanding that, in some embodiments, more or less blocks defining the plurality of blocks 500 can be provided without departing from the scope of the disclosure. Likewise, in some embodiments, with respect to shape, size, and orientation, each block can be identical, one or more blocks can be a portion (e.g., half-block) of one or more identical blocks, and one or more blocks can be different from one or more other blocks. In some embodiments, providing identical blocks and/or one or more blocks as a portion (e.g., half-block) of one or more identical blocks can provide advantages with respect to at least one of manufacture and cost of the plurality of blocks 500 that may otherwise not be obtained, for example, by providing a plurality of different blocks or one, single block of relatively larger size.
[0069] Moreover, for purposes of the disclosure, a standard three-dimensional (right-hand) cartesian coordinate system is provided in FIGS. 3-17 with a first axis “X” extending in a first direction, a second axis“Y” extending in a second direction perpendicular to the first direction, and a third axis“Z” extending in a third direction perpendicular to the first direction and the second direction. Unless otherwise noted, the coordinate system provides a basis from which at least one of a relative spatial coordinate and a relative orientation of one or more features of the disclosure can be determined in accordance with embodiments of the disclosure. Additionally, in some embodiments, a different coordinate system can be provided to define at least one of a relative spatial coordinate and a relative orientation of one or more features of the disclosure without departing from the scope of the disclosure. For example, in some embodiments, the plurality of blocks 500 can be stacked along the first axis“X” extending in the first direction. In some embodiments, the stacked blocks 500 can span a first distance“Dl” along the first axis“X”, a second distance“D2” along the second axis“Y” extending in the second direction perpendicular to the first direction, and a third distance“D3” along the third axis“Z” extending in the third direction perpendicular to the first direction and the second direction. In some embodiments, one or more of the distances“Dl”, “D2”, and“D3” can correspond to an entire distance along the respective axes“X’,“Y”,“Z” which one or more blocks 501-515 of the plurality of blocks 500 spans. Likewise, in some embodiments, one or more of the distances“Dl”,“D2”, and“D3” can correspond to less than the entire distance (e.g., a partial distance) along the respective axes“X’,“Y”,“Z” which one or more blocks 501-515 of the plurality of blocks 500 spans.
[0070] As shown in FIGS. 5-7, in some embodiments, with respect to the first axis“X”, block 501 can be stacked on half-block 502 and block 507; block 503 can be stacked on half-block 504 and block 508; and block 505 can be stacked on half- block 506 and block 509. Similarly, half-block 502 and block 507 can be stacked on block 503; and half-block 504 and block 508 can be stacked on block 505, thereby providing the electrode assembly 301 including a plurality of stacked blocks 500. In some embodiments, the first distance“Dl” and the second distance“D2” can define the front face 303 of the electrode assembly 301. For example, in some embodiments, providing one or more half-blocks 502, 504, 506 (or other partial-blocks) stacked with one or more whole blocks 501, 503, 505 (or corresponding partial-blocks), can provide the electrode assembly 301 with a front face 303 contacting the molten material 121 contained in the containment area 315 of the vessel 105. In some embodiments, the front face 303 can define a planar surface of the electrode assembly 301. In some embodiments, other surface profiles including, but not limited to, non- planar surface profiles, angled surface profiles, staggered surface profiles, and stepped surface profiles can be provided in other embodiments based at least in part on the stacked configuration of the plurality of blocks 500 as well as relative positions and/or wear of the ends of the plurality of blocks 500 defining portions of the front face 303 of the electrode assembly 301 while operating the glass manufacturing apparatus 500.
[0071] Additionally, in some embodiments, a first block of the stacked blocks 500 can be offset (e.g., staggered) relative to a second block of the stacked blocks 500 along the third axis“Z”. For example, as shown in FIGS. 5-7, in some embodiments, block 501 can be offset relative to half-block 502 along the third axis“Z” and block 507 can be offset relative to block 501 along the third axis“Z”; block 503 can be offset relative to half-block 504 along the third axis“Z” and block 508 can be offset relative to block 503 along the third axis“Z”; and block 505 can be offset relative to half-block 506 along the third axis“Z” and block 509 can be offset relative to block 505 along the third axis“Z”. Similarly, in some embodiments, block 503 can be offset relative to half-block 502 along the third axis“Z” and block 507 can be offset relative to block 503 along the third axis“Z”; and block 505 can be offset relative to half-block 504 along the third axis“Z” and block 508 can be offset relative to block 505 along the third axis“Z”. In some embodiments, the opposing rear face 305 of the electrode assembly 301 can include a non-planar profile based at least on the relative offset of the stacked blocks 500.
[0072] In some embodiments, the heating device 300 and the electrode assembly 301 can further include one or more frames 561, 562 circumscribing the stacked blocks 500 along the first axis“X” and the second axis“Y”. In some embodiments, each frame 561, 562 can impart a clamping force on the stacked blocks 500 along at least one of the first axis“X” and the second axis“Y”. For example, in some embodiments, by imparting a clamping force along at least one of the first axis “X” and the second axis“Y”, in some embodiments, the frames 561, 562 can hold the plurality of blocks 500 together in a stacked configuration to provide a structurally stable stack of blocks 500. Likewise, in some embodiments, by imparting a clamping force along at least one of the first axis“X” and the second axis“Y”, in some embodiments, the frames 561, 562 can force one or more faces (e.g., surfaces) of adjacent blocks into abutting relationship to provide electrical conductivity among the plurality of blocks 500. For example, in some embodiments, the electrical lead 307 (FIG. 3-5) can be electrically connected to the electrode assembly 301 and/or electrically connected to one or more of the frames 561, 562 which can, likewise, be electrically connected to one or more blocks of the plurality of blocks 500 of the electrode assembly 301. In some embodiments, the clamping force provided by the frames 561, 562 can force (e.g., push, press, maintain) adjacent, abutting faces of the plurality of blocks 500 together to provide an electrically conductive interface between the plurality of blocks 500. Accordingly, in some embodiments, electric current 325 (provided by the electrical lead 307) can pass from the front face 303 of the electrode assembly 301, through the material 121 contained in the containment area 315, thereby heating the material 121 based on Joule heating.
[0073] In some embodiments, the frames 561, 562 can be selectively movable along a path (e.g., path 565 in FIG. 6 and FIG. 7) extending along the third axis“Z”. For example, in some embodiments, the frames 561, 562 can be at least one of manually and automatically selectively moveable along one or more rails 550a, 555a, 550b, 555b of the heating device 300. In some embodiments, the frames 561, 562 can move along the rails 550a, 555a, 550b, 555b based on one or more of a rolling (e.g., wheeled) engagement, a geared engagement, a grooved engagement, a sliding engagement or other mechanical engagement or connection oriented to provide selective relative motion between the frames 561, 562 and the rails 550a, 555a, 550b, 555b. Moreover, in some embodiments, frame 561 can be independently movable relative to frame 562 such that each frame 561, 562 can be independently and selectively movable along a path (e.g., path 565 in FIG. 6 and FIG. 7) extending along the third axis“Z”. As discussed more fully below, in some embodiments, each frame 561, 562 can be independently and selectively movable along path 565 extending along the third axis“Z” relative to the rails 550a, 555a, 550b, 555b and/or relative to the plurality of blocks 500.
[0074] Therefore, as schematically shown in FIG. 6, in some embodiments, one or more frames 561, 562, providing the clamping force to the plurality of blocks 500 along at least one of the first axis“X” and the second axis“Y”, can be selectively translated relative to the first opening 403 along the adjustment path 565 extending in direction“Z” to translate the front face 303 of the electrode assembly 301 along the adjustment path 565 in direction“Z”. As schematically illustrated in FIG. 7, in some embodiments, translating one or more frames 561, 562 that are clamping the plurality of blocks 500 of the electrode assembly 301 relative to the first opening 403 along path 565 can move the front face 303 of the electrode assembly 301 along the adjustment path 565 to compensate for structural degradation of the front face 303 of the electrode assembly 301 caused by wear while operating the glass manufacturing apparatus 100. Moreover, as shown in FIG. 8, in some embodiments, additional blocks 510, 511, 512 can be added (e.g., stacked) with the stacked blocks 500. For example, in some embodiments, while operating the glass manufacturing apparatus 100, as the front face 303 of the electrode assembly 301 wears (e.g., degrades), one or more additional blocks 510, 511, 512 can be added to replace and replenish structure of the electrode assembly 301, as illustrated in FIG. 9.
[0075] Similarly, as schematically shown in FIG. 10, in some embodiments, after adding the one or more additional blocks 510, 511, 512 to the stacked blocks 500 of the electrode assembly 301, one or more frames 561, 562, providing the clamping force to the plurality of blocks 500 along at least one of the first axis“X” and the second axis“Y”, can be further selectively translated relative to the first opening 403 along the adjustment path 565 extending in direction“Z” to translate the front face 303 of the electrode assembly 301 along the adjustment path 565 in direction“Z” to compensate for further structural degradation of the front face 303 of the electrode assembly 301 caused by wear while operating the glass manufacturing apparatus 100. Likewise, as shown in FIG. 11, in some embodiments, additional blocks 513, 514, 515 can be added (e.g., stacked) with the stacked blocks 500. For example, as shown in FIG. 12, in some embodiments, while operating the glass manufacturing apparatus 100, as the front face 303 of the electrode assembly 301 continues to wear (e.g., degrade) during a duration of time, one or more additional blocks 513, 514, 515 can be added to replace and replenish structure of the electrode assembly 301. As will be appreciated, in some embodiments, the process of adding one or more additional blocks can be performed one time or a plurality of times while operating the glass manufacturing apparatus 100 to selectively and continually replace and replenish structure of the electrode assembly 301 as the front face 303 of the electrode assembly 301 wears and degrades. [0076] Additionally, as shown in FIG. 5, in some embodiments, the frames 561, 562 can include a fastener 575 operable to selectively apply the clamping force. For example, various embodiments of exemplary fasteners are provided in FIGS. 15- 17 with respect to frame 561 with the understanding that one or more fasteners, including fasteners not explicitly disclosed, can be provided in further embodiments to selectively and independently apply the clamping force to each of the frames 561, 562 without departing from the scope of the disclosure.
[0077] As shown in FIG. 15, in some embodiments, the fastener 575 can include a bolt 701 and a nut 702. In some embodiments, the bolt 701 and the nut 702 can mechanically connect a first portion 561a and a second portion 561b of the frame 561. For example, in some embodiments, the bolt 701 and the nut 702 can connect a first bracket 576 of the first portion 561a of frame 561 with a second bracket 577 of the second portion 561b of frame 561. Accordingly, in some embodiments, operation (e.g., loosening or tightening) of the nut 702 with respect to the bolt 701 can respectively increase or decrease a distance“d” between the first portion 561 and the second portion 561b of the frame 561.
[0078] As shown in FIG. 16, in some embodiments, the fastener 575 can include a hook 703 and a lever 704. In some embodiments, the hook 703 and the lever 704 can mechanically connect the first portion 561a and the second portion 561b of the frame 561. For example, in some embodiments, the lever 704 and the hook 703 can connect the first bracket 576 of the first portion 561a of frame 561 with the second bracket 577 of the second portion 561b of frame 561. Accordingly, in some embodiments, operation (e.g., rotation along path 705) of the lever 704 with respect to the hook 703 can respectively decrease or increase the distance“d” between the first portion 561 and the second portion 561b of the frame 561.
[0079] As shown in FIG. 17, in some embodiments, the fastener 575 can include a tension spring 706. In some embodiments, the tension spring 706 can mechanically connect the first portion 561a and the second portion 561b of the frame 561. For example, in some embodiments, the tension spring 706 can connect the first bracket 576 of the first portion 561a of frame 561 with the second bracket 577 of the second portion 561b of frame 561. Accordingly, in some embodiments, the tension spring 706 can impart a compressive force with respect to the first bracket 576 and the second bracket 577 that can decrease the distance“d” between the first portion 561 and the second portion 561b of the frame 561. Conversely, in some embodiments, opposition of the force of the tension spring 706 with respect to the first bracket 576 and the second bracket 577 that can increase the distance“d” between the first portion 561 and the second portion 561b of the frame 561. In some embodiments, decreasing the distance“d” can increase (e.g., apply) the clamping force on the stacked blocks 500, and increasing the distance“d” can decrease (e.g., remove) the clamping force from the stacked blocks 500.
[0080] For example, as shown in FIG. 8, in some embodiments, frame 561 can apply the clamping force to the stacked blocks 500 to hold the plurality of blocks 500 in the stacked configuration. Additionally, in some embodiments, the clamping force of frame 562 can be removed and frame 562 can then be translated in direction 566 to be positioned to receive additional blocks 510, 511, 512. By employing at least two independently movable frames 561, 562, in some embodiments, at least one frame (e.g., frame 561) can apply the clamping force and hold the plurality of blocks 500 in the stacked configuration while the clamping force of at least one other frame (e.g., frame 562) can be removed to permit the un-clamped frame 562 to be translated relative to the stacked blocks 500 in direction 566. As shown in FIG. 9, once the additional blocks 510, 511, 512 have been added to the stack of blocks 500, the clamping force of frame 562 can then be applied to hold the additional blocks 510, 511, 512 in the stacked configuration with the existing blocks 501, 503, 505, 507, 508, 509, thereby defining the plurality of blocks 500 of the electrode assembly 301. Moreover, in some embodiments, once the clamping force of frame 562 has been applied, the clamping force of frame 561 can then be removed to permit the un clamped frame 561 to be translated relative to the stacked blocks 500 in direction 566. That is, in some embodiments, the frames 561, 562 can be employed to selectively apply and/or remove the clamping force on the stacked blocks 500 of the electrode assembly 301 independent of each other and/or simultaneously with each other. In some embodiments, at least one frame 561, 562 can provide the clamping force to hold the blocks 500 in the stacked configuration and to ensure electrical contact between faces of the blocks 500 during, for example, an entire duration of time defining operation of the glass manufacturing apparatus 100. [0081] In some embodiments, one or more clamped frames (e.g., frames 561, 562 in FIG. 6) can apply the clamping force to hold the blocks 500 in the stacked configuration while the electrode assembly 301 is stationary. Likewise, in some embodiments, the clamped frames (e.g., frames 561, 562 in FIG. 6 and FIG. 7) can be translated relative to the first opening 403 along the adjustment path 565 extending in direction“Z” to translate the front face 303 of the electrode assembly 301 along the adjustment path 565 in direction“Z” to compensate for structural degradation of the front face 303 of the electrode assembly 301 caused by wear while operating the glass manufacturing apparatus 100. Similarly, in some embodiments, once the additional blocks 510, 511, 512 are added (as schematically represented in FIG. 8 and FIG. 9), the clamped frames (e.g., frames 561, 562 in FIG. 10) can be translated relative to the first opening 403 along the adjustment path 565 extending in direction“Z” to translate the front face 303 of the electrode assembly 301 along the adjustment path 565 in direction“Z” to compensate for further structural degradation of the front face 303 of the electrode 301 assembly caused by wear while operating the glass manufacturing apparatus 100.
[0082] As shown in FIG. 11, in some embodiments, for example, after translating the front face 303 of the electrode assembly 301 along the adjustment path 565 in direction“Z” to compensate for further structural degradation of the front face 303 of the electrode assembly 301 caused by wear while operating the glass manufacturing apparatus 100, the clamping force of frame 562 can be removed again and frame 562 can then be translated in direction 566 to be positioned to receive additional blocks 513, 514, 515 while frame 561 can apply the clamping force and hold the plurality of blocks 500 in the stacked configuration. As shown in FIG. 12, once the additional blocks 513, 514, 515 have been added to the stack of blocks 500, the clamping force of frame 562 can then be applied to hold the additional blocks 513, 514, 515 in the stacked configuration with the existing blocks 507, 508, 509, 510, 511, 512 thereby defining the plurality of blocks 500 of the electrode assembly 301. As noted previously, in some embodiments, once the clamping force of frame 562 has been applied, the clamping force of frame 561 can then be removed to permit the un clamped frame 561 to be translated relative to the stacked blocks 500 while frame 562 applies the clamping force to hold the blocks 500 in the stacked configuration. Accordingly, in some embodiments, the clamped frames (e.g., frames 561, 562 in FIG. 12) can then be translated relative to the first opening 403 along the adjustment path 565 extending in direction“Z” to translate the front face 303 of the electrode assembly 301 along the adjustment path 565 in direction“Z” to compensate for further structural degradation of the front face 303 of the electrode assembly 301 caused by wear while operating the glass manufacturing apparatus 100. Unless otherwise noted, it is to be understood that the process of clamping and unclamping the frames 561, 562, translating the electrode assembly 301 to compensate for wear, and adding additional blocks to the stack of blocks 500 can be performed (e.g., repeated) a plurality of times before, during, or after operation of the glass manufacturing apparatus 100 without departing from the scope of the disclosure.
[0083] An exemplary block 525 is shown in FIG. 13 with the understanding that, in some embodiments, one or more of the plurality of blocks 500 can be identical to the exemplary block 525. Moreover, in some embodiments, one or more of the plurality of blocks 500 can include one or more features that are the same as or similar to the features of the exemplary block 525 as well as one or more features that differ from features of the exemplary block 525, without departing from the scope of the disclosure. Likewise, in some embodiments, one or more of the plurality of blocks 500 can be provided as partial (e.g., one-quarter, one-third, half, two-thirds, three- quarters, etc.) blocks of exemplary block 525. For example, in some embodiments, the block 525 can include a first surface 525d, 525e extending from a first end 525a of the block 525 to a second end 525b of the block 525. In some embodiments, the block 525 can include a second surface 525c opposing the first surface 525d, 525e and extending from the first end 525a of the block 525 to the second end 525b of the block 525. In some embodiments, a third surface 525f of the block 525 and an opposing fourth surface 525g of the block 525 can define respective outer boundaries of the block 525 within the first surface 525d, 525e, the second surface 525c, the first end 525a, and the second end 525b. In some embodiments, the first surface 525d, 525e can define a non-planar boundary of the block 525. For example, in some embodiments, a first planar portion 525d of the surface can intersect a second planar portion 525e of the surface at a non-zero angle to define the non-planar boundary of the block 525. In some embodiments, at least one of the first planar portion 525d and the second planar portion 525e can extend at a non-perpendicular angle relative to the X-Y plane. Although not explicitly illustrated, it is to be understood that, in some embodiments, one or more planar and/or non-planar (e.g., curved, stepped, undulating, angled) portions of the first surface 525d, 525e can be provided to define the non-planar (e.g., curved, stepped, undulating, angled) boundary of the block 525 without departing from the scope of the disclosure.
[0084] Without intending to be bound by theory, it is believed that the non- planar boundary of the first surface 525d, 525e of the block 525 can provide better electrical contact between adjacent, abutting blocks than, for example, a comparable planar boundary. Moreover, in some embodiments, structural stability of the stack of blocks 500 can also be increased based at least in part on the offset (e.g., staggered) stacking of the blocks and the non-planar boundary defining one or more interfaces between immediately adjacent blocks as the electrode assembly 301 is provided in a stationary position and/or as the electrode assembly 301 is translated during operation of the glass manufacturing apparatus 100 as compared to, for example, a stack of blocks having comparable planar boundaries.
[0085] For example, FIG. 14 shows an exemplary embodiment of a plurality of blocks 500 stacked along the first axis“X” and offset (e.g., staggered) along the third axis“Z” in accordance with embodiments of the disclosure. A portion of electrode assembly 301 is provided including block 501, half-block 502, and blocks 507, 510 and 513. In some embodiments, block 501 can include a first end 501a, a second end 501b, a first surface 50 Id, 50 le defining the non-planar boundary of the block 501, a second surface 501c, and a third surface 501f as described with respect to the exemplary block 525 (FIG. 13). Likewise, in some embodiments, half-block 502 can include a first end 502a, a second end 502b, a first surface 502e defining a portion of the non-planar boundary of the block 502, a second surface 502c, and a third surface 502f. Similarly, in some embodiments, blocks 507, 510, 513 can include a first end 507a, 510a, 513a, a second end 507b, 510b, 513b, a first surface 507d, 507e, 510d, 510e, 513d, 513e defining the non-planar boundary of the blocks 507, 510, 513, a second surface 507c, 510c, 513c, and a third surface 507f, 510f, 513f as described with respect to the exemplary block 525 (FIG. 13).
[0086] In some embodiments, a first dimension“dl” of block 501 defined along the third axis“Z” from end 501a to end 501b can be greater than a second dimension“d2” of block 502 defined along the third axis“Z” from end 502a to end 502b. Additionally, in some embodiments, end 501b of the first block 501 can define a first portion of the first face 303 of the electrode assembly 301, and end 502a of the second block 502 can define a second portion of the first face 303 of the electrode assembly 301. As noted, in some embodiments, at least a portion of the first face 303 can define a planar surface of the electrode assembly 301. In some embodiments, a third dimension“d3” of block 507 defined along the third axis“Z” from end 507a to end 507b can be greater than the second dimension“d3” of block 502. In some embodiments, the first dimension“dl” of block 501 can be equal to the third dimension“d3” of block 507.
[0087] In some embodiments, the portion 50 le of the surface defining the non-planar boundary of block 501 can face the portion 502e of the surface defining at least a portion of the non-planar boundary of half-block 502. For example, in some embodiments, the portion 501e of the surface defining the non-planar boundary of block 501 can abut the portion 502e of the surface defining at least a portion of the non-planar boundary of half-block 502 at an interface 521. Likewise, in some embodiments, the portion 501d of the surface defining the non-planar boundary of block 501 can face the portion 507d of the surface defining the non-planar boundary of block 507. For example, in some embodiments, the portion 50 Id of the surface defining the non-planar boundary of block 501 can abut the portion 507d of the surface defining the non-planar boundary of block 507 at an interface 571. Similarly, in some embodiments, the portion 507e of the surface defining the non-planar boundary of block 507 can face the portion 510e of the surface defining the non- planar boundary of block 510. For example, in some embodiments, the portion 507e of the surface defining the non-planar boundary of block 507 can abut the portion 510e of the surface defining the non-planar boundary of block 510 at an interface. It is to be understood that the staggered pattern of the stacked blocks 500 can be repeated with any number of blocks and/or partial blocks without departing from the scope of the disclosure.
[0088] Moreover, in some embodiments, the portion 513d of the surface defining the non-planar boundary of block 513 can face the portion 510d of the surface defining the non-planar boundary of block 510. For example, in some embodiments, the portion 513d of the surface defining the non-planar boundary of block 513 can be positioned (e.g., added to the stack of blocks 500) to abut the portion 510d of the surface defining the non-planar boundary of block 510 at an interface (not shown). Additionally, in some embodiments, end 501b of block 501 and end 502a of half-block 502 can be coplanar with the planar surface defining the front face 303 of the electrode 301. In some embodiments, end 501a of block 501 can face (e.g., abut) end 510b of block 510, end 502b of half-block 502 can face (e.g., abut) end 507a of block 507 at interface 527, and end 513a of block 513 can face (e.g., be positioned to abut) end 507b of block 507. Accordingly, in some embodiments, the interface (e.g., interfaces 521, 527, 571) between abutting surfaces of immediately adjacent stacked blocks 500 can provide an electrical connection between the plurality of blocks 500 defining the electrode assembly 301. Likewise, in some embodiments, the process of stacking and/or adding blocks can be repeated to continually replace and replenish depleted electrode material with new electrode material without interrupting the manufacturing process.
[0089] Embodiments and the functional operations described herein can be implemented in digital electronic circuitry, or in computer software, firmware, or hardware, including the structures disclosed in this specification and their structural equivalents, or in combinations of one or more of them. Embodiments described herein can be implemented as one or more computer program products, i.e., one or more modules of computer program instructions encoded on a tangible program carrier for execution by, or to control the operation of, data processing apparatus. The tangible program carrier can be a computer readable medium. The computer readable medium can be a machine-readable storage device, a machine-readable storage substrate, a memory device, or a combination of one or more of them.
[0090] The term“processor” or“controller” can encompass all apparatus, devices, and machines for processing data, including by way of example a programmable processor, a computer, or multiple processors or computers. The processor can include, in addition to hardware, code that creates an execution environment for the computer program in question, e.g., code that constitutes processor firmware, a protocol stack, a database management system, an operating system, or a combination of one or more of them. [0091] A computer program (also known as a program, software, software application, script, or code) can be written in any form of programming language, including compiled or interpreted languages, or declarative or procedural languages, and it can be deployed in any form, including as a standalone program or as a module, component, subroutine, or other unit suitable for use in a computing environment. A computer program does not necessarily correspond to a file in a file system. A program can be stored in a portion of a file that holds other programs or data (e.g., one or more scripts stored in a markup language document), in a single file dedicated to the program in question, or in multiple coordinated files (e.g., files that store one or more modules, sub programs, or portions of code). A computer program can be deployed to be executed on one computer or on multiple computers that are located at one site or distributed across multiple sites and interconnected by a communication network.
[0092] The processes described herein can be performed by one or more programmable processors executing one or more computer programs to perform functions by operating on input data and generating output. The processes and logic flows can also be performed by, and apparatus can also be implemented as, special purpose logic circuitry, e.g., an FPGA (field programmable gate array) or an ASIC (application specific integrated circuit) to name a few.
[0093] Processors suitable for the execution of a computer program include, by way of example, both general and special purpose microprocessors, and any one or more processors of any kind of digital computer. Generally, a processor will receive instructions and data from a read only memory or a random-access memory or both. The essential elements of a computer are a processor for performing instructions and one or more data memory devices for storing instructions and data. Generally, a computer will also include, or be operatively coupled to receive data from or transfer data to, or both, one or more mass storage devices for storing data, e.g., magnetic, magneto optical disks, or optical disks. However, a computer need not have such devices. Moreover, a computer can be embedded in another device, e.g., a mobile telephone, a personal digital assistant (PDA), to name just a few.
[0094] Computer readable media suitable for storing computer program instructions and data include all forms data memory including nonvolatile memory, media and memory devices, including by way of example semiconductor memory devices, e.g., EPROM, EEPROM, and flash memory devices; magnetic disks, e.g., internal hard disks or removable disks; magneto optical disks; and CD ROM and DVD-ROM disks. The processor and the memory can be supplemented by, or incorporated in, special purpose logic circuitry.
[0095] To provide for interaction with a user, embodiments described herein can be implemented on a computer having a display device, e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor, and the like for displaying information to the user and a keyboard and a pointing device, e.g., a mouse or a trackball, or a touch screen by which the user can provide input to the computer. Other kinds of devices can be used to provide for interaction with a user as well; for example, input from the user can be received in any form, including acoustic, speech, or tactile input.
[0096] Embodiments described herein can be implemented in a computing system that includes a back end component, e.g., as a data server, or that includes a middleware component, e.g., an application server, or that includes a front end component, e.g., a client computer having a graphical user interface or a Web browser through which a user can interact with implementations of the subject matter described herein, or any combination of one or more such back end, middleware, or front end components. The components of the system can be interconnected by any form or medium of digital data communication, e.g., a communication network. Examples of communication networks include a local area network (“LAN”) and a wide area network (“WAN”), e.g., the Internet.
[0097] The computing system can include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other.
[0098] It will be appreciated that the various disclosed embodiments may involve particular features, elements or steps that are described in connection with that particular embodiment. It will also be appreciated that a particular feature, element or step, although described in relation to one particular embodiment, may be interchanged or combined with alternate embodiments in various non-illustrated combinations or permutations. [0099] It is also to be understood that, as used herein the terms“the,”“a,” or “an,” mean“at least one,” and should not be limited to“only one” unless explicitly indicated to the contrary. Likewise, a“plurality” is intended to denote“more than one.”
[00100] Ranges can be expressed herein as from“about” one particular value, and/or to“about” another particular value. When such a range is expressed, embodiments include from the one particular value and/or to the other particular value. Similarly, when values are expressed as approximations, by use of the antecedent“about,” it will be understood that the particular value forms another embodiment. It will be further understood that the endpoints of each of the ranges are significant both in relation to the other endpoint, and independently of the other endpoint.
[00101] The terms“substantial,”“substantially,” and variations thereof as used herein are intended to note that a described feature is equal or approximately equal to a value or description.
[00102] Unless otherwise expressly stated, it is in no way intended that any method set forth herein be construed as requiring that its steps be performed in a specific order. Accordingly, where a method claim does not actually recite an order to be followed by its steps or it is not otherwise specifically stated in the claims or descriptions that the steps are to be limited to a specific order, it is no way intended that any particular order be inferred.
[00103] While various features, elements or steps of particular embodiments may be disclosed using the transitional phrase“comprising,” it is to be understood that alternative embodiments, including those that may be described using the transitional phrases“consisting” or“consisting essentially of,” are implied. Thus, for example, implied alternative embodiments to an apparatus that comprises A+B+C include embodiments where an apparatus consists of A+B+C and embodiments where an apparatus consists essentially of A+B+C.
[00104] It will be apparent to those skilled in the art that various modifications and variations can be made to the present disclosure without departing from the spirit and scope of the appended claims. Thus, it is intended that the present disclosure cover the modifications and variations of the embodiments herein provided they come within the scope of the appended claims and their equivalents. [00105] It should be understood that while various embodiments have been described in detail with respect to certain illustrative and specific embodiments thereof, the present disclosure should not be considered limited to such, as numerous modifications and combinations of the disclosed features are possible without departing from the scope of the following claims.

Claims

CLAIMS What is claimed is:
1. An electrode assembly comprising:
a plurality of blocks stacked along a first axis in a first direction;
wherein the plurality of blocks spans a first distance along the first axis, a second distance along a second axis in a second direction perpendicular to the first direction, wherein the first distance and the second distance define a first face of the electrode assembly, and wherein the plurality of blocks span a third distance from the first face of the electrode assembly to a second face of the electrode assembly along a third axis in a third direction perpendicular to the first direction and the second direction; and
wherein a first dimension of a first block of the plurality of blocks defined along the third axis from a first end of the first block to a second end of the first block is greater than a second dimension of a second block of the plurality of blocks defined along the third axis from a first end of the second block to a second end of the second block.
2. The electrode assembly of claim 1, wherein the first end of the first block defines a first portion of the first face, and wherein the first end of the second block defines a second portion of the first face.
3. The electrode assembly of claim 1 or claim 2, wherein the first face defines a planar surface of the electrode assembly.
4. The electrode assembly of any one of claims 1-3, wherein the first block comprises a first surface extending from the first end of the first block to the second end of the first block, and wherein the first surface defines a non-planar boundary of the first block.
5. The electrode assembly of claim 4, wherein the second block comprises a second surface extending from the first end of the second block to the second end of the second block, and wherein a first portion of the first surface of the first block faces a portion of the second surface of the second block.
6. The electrode assembly of claim 5, wherein the first portion of the first surface of the first block abuts the portion of the second surface of the second block at a first interface.
7. The electrode assembly of any one of claims 1-6, wherein a third dimension of a third block of the plurality of blocks defined along the third axis from a first end of the third block to a second end of the third block is greater than the second dimension, and wherein the first end of the third block faces the second end of the second block.
8. The electrode assembly of claim 6, wherein the first dimension equals the third dimension.
9. The electrode assembly of claim 7 or claim 8, wherein the third block comprises a third surface extending from the first end of the third block to the second end of the third block, wherein the third surface defines a non-planar boundary of the third block, and wherein a second portion of the first surface of the first block faces a portion of the third surface of the third block.
10. The electrode assembly of claim 9, wherein the first end of the third block abuts the second end of the second block at a second interface, and wherein the second portion of the first surface of the first block abuts the portion of the third surface of the third block at a third interface.
11. The electrode assembly of any one of claims 1-10, further comprising a first frame circumscribing the plurality of blocks along the first axis and the second axis.
12. The electrode assembly of claim 11, wherein the first frame is movable along the third axis.
13. The electrode assembly of claim 11 or claim 12, wherein the first frame applies a first clamping force on the plurality of blocks along at least one of the first axis and the second axis.
14. The electrode assembly of claim 13, wherein the first frame comprises a first fastener oriented to at least one of increase and decrease the first clamping force.
15. The electrode assembly of any one of claims 11-14, further comprising a second frame circumscribing the plurality of blocks along the first axis and the second axis, wherein the second frame is movable along the third axis, wherein the second frame applies a second clamping force on the plurality of blocks along at least one of the first axis and the second axis, wherein the second frame comprises a second fastener oriented to at least one of increase and decrease the second clamping force, and wherein the first frame and the second frame are independently movable along the third axis.
16. An apparatus comprising the electrode assembly of any one of claims 1-15, comprising a vessel comprising at least one wall defining a containment area of the vessel, the at least one wall comprising an aperture defining an opening receiving at least a portion of the electrode assembly.
17. The apparatus of claim 16, wherein the vessel comprises a melting vessel for a glass manufacturing system.
18. The apparatus of claim 16 or claim 17, wherein a position of the electrode assembly is adjustable relative to the opening of the wall.
19. A method of processing material in the vessel of any one of claims 16-18, comprising supplying electrical energy to the electrode assembly and heating the material in the containment area of the vessel with the electrical energy.
20. The method of claim 19, comprising adjusting a position of the electrode assembly relative to the opening of the wall while heating the material.
PCT/US2019/023090 2018-03-22 2019-03-20 Apparatus and method for processing material WO2019183172A1 (en)

Applications Claiming Priority (2)

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US201862646556P 2018-03-22 2018-03-22
US62/646,556 2018-03-22

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4290475A (en) * 1979-02-09 1981-09-22 Pyreflex Corporation Ingot casting
US5151918A (en) * 1990-08-28 1992-09-29 Argent Ronald D Electrode blocks and block assemblies
US5199043A (en) * 1991-08-09 1993-03-30 Deutsche Voest-Alpine Industrieanlagenbau Gmbh Lining for a direct-current electric arc furnace
WO2017079390A1 (en) * 2015-11-05 2017-05-11 Corning Incorporated Determining electrode length in a melting furnace

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4290475A (en) * 1979-02-09 1981-09-22 Pyreflex Corporation Ingot casting
US5151918A (en) * 1990-08-28 1992-09-29 Argent Ronald D Electrode blocks and block assemblies
US5199043A (en) * 1991-08-09 1993-03-30 Deutsche Voest-Alpine Industrieanlagenbau Gmbh Lining for a direct-current electric arc furnace
WO2017079390A1 (en) * 2015-11-05 2017-05-11 Corning Incorporated Determining electrode length in a melting furnace

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