WO2021005934A1 - Appareil de production d'article en verre - Google Patents

Appareil de production d'article en verre Download PDF

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Publication number
WO2021005934A1
WO2021005934A1 PCT/JP2020/022436 JP2020022436W WO2021005934A1 WO 2021005934 A1 WO2021005934 A1 WO 2021005934A1 JP 2020022436 W JP2020022436 W JP 2020022436W WO 2021005934 A1 WO2021005934 A1 WO 2021005934A1
Authority
WO
WIPO (PCT)
Prior art keywords
furnace
entrance block
platinum
glass
front surface
Prior art date
Application number
PCT/JP2020/022436
Other languages
English (en)
Japanese (ja)
Inventor
幹雄 檜山
裕之 板津
Original Assignee
日本電気硝子株式会社
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 日本電気硝子株式会社 filed Critical 日本電気硝子株式会社
Priority to CN202090000581.8U priority Critical patent/CN216513446U/zh
Publication of WO2021005934A1 publication Critical patent/WO2021005934A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/167—Means for preventing damage to equipment, e.g. by molten glass, hot gases, batches
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/42—Details of construction of furnace walls, e.g. to prevent corrosion; Use of materials for furnace walls
    • C03B5/425—Preventing corrosion or erosion

Definitions

  • the present invention relates to a glass article manufacturing apparatus including a glass melting furnace for melting a glass raw material to produce molten glass and a pipe for flowing the molten glass in the furnace out of the furnace.
  • glass articles typified by glass plates, glass tubes, glass fibers, etc. are manufactured by molding molten glass produced by melting a glass raw material in a glass melting furnace into a predetermined shape.
  • the molten glass produced in the glass melting furnace is discharged from the inside of the furnace to the outside of the furnace by a pipe penetrating the refractory material constituting the furnace wall.
  • the surface of the refractory that constitutes the furnace wall facing the inside of the furnace is eroded by the molten glass.
  • the flow of molten glass is intense near the pipe in the glass melting furnace.
  • a refractory material hereinafter referred to as an entrance block
  • an entrance block a refractory material through which a pipe is penetrated has a drawback that erosion easily proceeds, and as a result, the entrance block deteriorates.
  • the surface of the refractory material facing the inside of the furnace may be covered with a platinum member (platinum film or platinum plate).
  • the present invention made in view of the above circumstances has a technical problem of preventing deterioration of the entrance block by avoiding erosion of the entrance block by molten glass.
  • a glass melting furnace having an entrance block in the furnace wall and a molten glass penetrating the entrance block and flowing out the molten glass in the glass melting furnace to the outside of the furnace.
  • the entrance block is a device having a front surface facing the inside of the glass melting furnace, a back surface facing the outside of the furnace, and a side surface connecting the front surface and the back surface, and the front surface and the edge connected to the front surface on the side surface.
  • the part region is covered with a platinum member.
  • the platinum member covers not only the front surface of the entrance block facing the inside of the furnace, but also the edge region connected to the front surface on the side surface. With this configuration, a part of the platinum member is hooked on the side surface, and the platinum member is prevented from sagging accordingly. As a result, it is possible to prevent the molten glass from eroding the entrance block due to the sagging of the platinum member, and it is possible to prevent its deterioration.
  • the platinum member covers the edge region of the side surface, so that the molten glass has penetrated between the entrance block and the refractory material adjacent to the entrance block (hereinafter referred to as the adjacent block). This makes it easier to avoid erosion of the entrance block. Therefore, deterioration of the entrance block can be prevented more accurately.
  • the region other than the edge region on the side surface is also covered with the platinum member.
  • an opening for partially exposing the side surface is provided near the back surface of the portion of the platinum member that covers the side surface.
  • the amount of platinum used which is expensive, can be suppressed by the amount of the opening provided in the platinum member, so that the cost required to prevent the deterioration of the entrance block can be reduced.
  • the entrance block may be eroded by the molten glass that has penetrated through the opening, but since the opening is provided near the back surface where the molten glass does not penetrate, such a concern is accurately eliminated.
  • the back surface is covered with a platinum member.
  • FIG. 1 It is sectional drawing which shows the outline of the manufacturing apparatus of a glass article. It is an enlarged cross-sectional view which shows the part A in FIG. 1 enlarged. It is a top view which shows the entrance block provided in the manufacturing apparatus of a glass article. It is a front view which shows the entrance block provided in the manufacturing apparatus of a glass article.
  • platinum in the present invention is not limited to pure platinum, but includes platinum alloys (platinum rhodium, etc.) and reinforced platinum (platinum containing zirconia, etc.).
  • the glass article manufacturing apparatus 1 (hereinafter referred to as manufacturing apparatus 1) includes a glass melting furnace 2 (hereinafter referred to as furnace 2), a pipe 3, and a feeder 4.
  • the manufacturing apparatus 1 heats the molten glass 5 stored in the furnace 2 and sequentially melts the glass raw material 5x supplied on the molten glass 5 to generate a new molten glass 5, and also uses a pipe 3 to generate a new molten glass 5.
  • the molten glass 5 in the furnace 2 is allowed to flow out of the furnace 2.
  • the molten glass 5 flowing out of the furnace 2 is supplied to the feeder 4 connected to the pipe 3.
  • the feeder 4 includes, for example, a clarification container, a stirring pot, a state adjusting tank, a transfer pipe connecting them, and the like.
  • the molten glass 5 that has passed through such a feeder 4 is supplied to a molding apparatus and molded into a glass article.
  • the furnace 2 has a front wall 2a located at the upstream end in the flow direction of the glass raw material 5x, a rear wall 2b located at the downstream end in the flow direction, and front and back sides of the paper surface in FIG. It has a pair of side walls (not shown) facing each other, a ceiling wall 2c, and a bottom wall 2d. Each of these furnace walls consists of multiple refractories.
  • a screw feeder 6 for supplying the glass raw material 5x into the furnace 2 is arranged on the front wall 2a.
  • a burner capable of injecting a flame is arranged along the surface (liquid level) of the molten glass 5 on each of the pair of side walls.
  • An electrode 7 capable of energizing and heating the molten glass 5 is arranged on the bottom wall 2d.
  • the rear wall 2b includes the entrance block 8.
  • the entrance block 8 is one of a plurality of refractories 9 constituting the furnace wall (rear wall 2b).
  • the entrance block 8 is arranged at the lowest stage among the refractories 9 constituting the rear wall 2b.
  • the entrance block 8 is formed with a hole 8a leading from the inside of the furnace 2 to the outside of the furnace 2.
  • the pipe 3 inserted into the hole 8a penetrates the entrance block 8.
  • the inner peripheral surface of the hole 8a and the outer peripheral surface of the pipe 3 are in direct contact with each other. That is, the inner peripheral surface of the hole 8a is covered with the outer peripheral surface of the pipe 3.
  • the pipe 3 is arranged above the inner wall surface of the bottom wall 2d.
  • the downstream end of the pipe 3 is connected to the upstream end of the transfer pipe 4a included in the feeder 4 in an abutted state.
  • a flange 4ab is provided at the upstream end of the transfer pipe 4a.
  • Both the pipe 3 and the transfer pipe 4a are made of platinum.
  • the entrance block 8 has a front surface 8b facing the inside of the furnace 2, a back surface 8c facing the outside of the furnace 2, and a side surface 8d connecting the front surface 8b and the back surface 8c.
  • the side surface 8d includes an upper side surface 8da, a lower side surface 8db, a right side surface 8dc, and a left side surface 8dd.
  • the side surface 8d is located between the front surface 8b and the back surface 8c, and connects the front surface 8b and the back surface 8c.
  • each surface of the entrance block 8 the entire area of each surface excluding the upper side surface 8da (front surface 8b, back surface 8c, lower side surface 8db, right side surface 8dc, and left side surface 8dd) is covered with the platinum member 11. ing.
  • the region covered with the platinum member 11 is represented by cross-hatching.
  • an opening 11a is provided near the back surface 8c of the portion of the platinum member 11 that covers the upper side surface 8da, and the portion where the upper side surface 8da is partially exposed by the opening 11a is provided.
  • the platinum member 11 is a single member (a continuous continuous member).
  • the upper side surface 8da of the entrance block 8 but also the back surface 8c, the lower side surface 8db, the right side surface 8dc, and the left side surface 8dd are provided by the openings 11a provided in the platinum member 11. There may be a portion where the surface is partially exposed.
  • a part of the surfaces of the entrance block 8 may be completely exposed without being covered with the platinum member 11.
  • the platinum member 11 has a front surface 8b and an edge region x (xa, xb, xc, xd) of a side surface 8d (upper side surface 8da, lower side surface 8db, right side surface 8dc, and left side surface 8dd) connected to the front surface 8b. At a minimum, it should be covered. Therefore, as an example, the back surface 8c may be completely exposed without being covered with the platinum member 11 at all.
  • the back surface 8c is made of platinum from the viewpoint of preventing the entrance block 8 from being eroded by the leaked molten glass 5. It is preferable to cover it with the member 11.
  • the platinum member 11 covering the back surface 8c may hang down. From the viewpoint of preventing this, it is preferable to cover the region other than the edge region x of the side surface 8d with the platinum member 11. As a result, the portion of the platinum member 11 that covers the back surface 8c and the portion that covers the side surface 8d (region other than the edge region x) are continuous, and the portion that covers the side surface 8d (region other than the edge region x) is the side surface. Since it is hooked on the back surface 8c, it is possible to prevent the portion covering the back surface 8c from dripping.
  • the platinum member 11 may be composed of a plurality of members instead of a single member.
  • the platinum member 11 may be divided into two members, a member on the front surface 8b side and a member on the back surface 8c side.
  • the member on the front surface 8b side is the edge region x (xa, xa, of the front surface 8b and the side surface 8d (upper side surface 8da, lower side surface 8db, right side surface 8dc, and left side surface 8dd) connected to the front surface 8b).
  • the member on the back surface 8c side is the edge region of the back surface 8c and the side surface 8d (upper side surface 8da, lower side surface 8db, right side surface 8dc, and left side surface 8dd) connected to the back surface 8c. It may cover y (ya, yb, yc, yd).
  • the platinum member 11 can be composed of, for example, a platinum film formed on the outer surface of the entrance block 8 or a platinum plate processed so as to conform to the shape of the entrance block 8.
  • the platinum member 11 may be made of one platinum plate or a plurality of platinum plates.
  • the platinum member 11 is composed of a plurality of platinum plates joined by welding.
  • the platinum plate is bent along the corners.
  • the platinum plate may have a partial gap between the platinum plate and the outer surface of the entrance block 8, or may be completely in close contact with the outer surface without a gap.
  • the platinum member 11 is not only the front surface 8b of the entrance block 8 facing the inside of the furnace 2, but also the side surface 8d (upper side surface 8da, lower side surface 8db, right side surface 8dc, and left side surface 8dd) connected to the front surface 8b. ) To the edge region x (xa, xb, xc, xd). By having a part of the platinum member 11 hooked on the side surface 8d in this way, the platinum member 11 is prevented from sagging. As a result, it is possible to prevent the molten glass 5 from eroding the entrance block 8 due to the sagging of the platinum member 11, and it is possible to prevent its deterioration.
  • the apparatus for manufacturing a glass article according to the present invention is not limited to the configuration described in the above embodiment.
  • the platinum member 11 has a front surface 8b and an edge region x (xa, xb, xc, xd) of a side surface 8d (upper side surface 8da, lower side surface 8db, right side surface 8dc, and left side surface 8dd) connected to the front surface 8b. Should be covered. That is, the region other than the edge region x on the side surface 8d (the remaining region excluding the edge region x) may be covered with the platinum member 11 or may be exposed without being covered.
  • the edge region x may be a region where the distance from the front surface 8b is 100 mm or less. It is preferable that the distance is 200 mm or less. From the viewpoint of further reducing the erosion of the entrance block 8 by the molten glass 5 that has penetrated between the entrance block 8 and the adjacent refractory 9, the region other than the edge region x on the side surface 8d is covered with the platinum member 11. It is preferable to have.
  • the opening 11a that partially exposes the side surface 8d may be omitted, but from the viewpoint of reducing the erosion of the entrance block 8 by the infiltrated molten glass 5 while suppressing the amount of platinum used, the side surface of the platinum member 11 It is preferable to provide the portion covering 8d closer to the back surface 8c.
  • the thickness of the entrance block 8 dimensions from the front surface 8b to the back surface 8c
  • the opening 11a has, for example, a distance (mm) from the back surface 8c within the range of 0.05t to 0.5t. It may be provided.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Furnace Details (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Abstract

L'invention concerne un appareil de production d'article en verre (1), comprenant : un four de fusion de verre (2) comportant un bloc d'entrée (8) au niveau d'une paroi arrière (2b) ; et un tuyau (3) qui pénètre dans le bloc d'entrée (8) et à travers lequel du verre fondu (5) au sein du four (2) est autorisé à s'écouler hors du four (2), le bloc d'entrée (2) présentant une surface avant (8b) faisant face à l'intérieur du four (2), une surface arrière (8c) faisant face à l'extérieur du four (2) et des surfaces latérales (8d) (surface latérale supérieure (8da), surface latérale inférieure (8db), surface latérale droite (8dc) et surface latérale gauche (8dd)) qui relient la surface avant (8b) et la surface arrière (8c), la surface avant (8b) et les régions de bord x (xa, xb, xc, xd) des surfaces latérales (8d) contiguës à la surface avant (8b) étant recouvertes d'un élément de platine (11).
PCT/JP2020/022436 2019-07-05 2020-06-05 Appareil de production d'article en verre WO2021005934A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202090000581.8U CN216513446U (zh) 2019-07-05 2020-06-05 玻璃物品的制造装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019-126046 2019-07-05
JP2019126046A JP7358806B2 (ja) 2019-07-05 2019-07-05 ガラス物品の製造装置

Publications (1)

Publication Number Publication Date
WO2021005934A1 true WO2021005934A1 (fr) 2021-01-14

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ID=74114178

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Application Number Title Priority Date Filing Date
PCT/JP2020/022436 WO2021005934A1 (fr) 2019-07-05 2020-06-05 Appareil de production d'article en verre

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JP (1) JP7358806B2 (fr)
CN (1) CN216513446U (fr)
WO (1) WO2021005934A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007020887A1 (fr) * 2005-08-19 2007-02-22 Nippon Electric Glass Co., Ltd. Matériau résistant à la chaleur pour la fusion du verre, dispositif de production d’un objet en verre, et procédé de production d’un objet en verre
JP2007153713A (ja) * 2005-12-08 2007-06-21 Tanaka Kikinzoku Kogyo Kk ガラス製造用装置
JP2010090028A (ja) * 2003-02-10 2010-04-22 Nippon Electric Glass Co Ltd 溶融ガラス供給装置及びガラス成形品の製造方法
JP2010202444A (ja) * 2009-03-03 2010-09-16 Asahi Glass Co Ltd ガラス溶融炉及びガラス溶融方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010090028A (ja) * 2003-02-10 2010-04-22 Nippon Electric Glass Co Ltd 溶融ガラス供給装置及びガラス成形品の製造方法
WO2007020887A1 (fr) * 2005-08-19 2007-02-22 Nippon Electric Glass Co., Ltd. Matériau résistant à la chaleur pour la fusion du verre, dispositif de production d’un objet en verre, et procédé de production d’un objet en verre
JP2007153713A (ja) * 2005-12-08 2007-06-21 Tanaka Kikinzoku Kogyo Kk ガラス製造用装置
JP2010202444A (ja) * 2009-03-03 2010-09-16 Asahi Glass Co Ltd ガラス溶融炉及びガラス溶融方法

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JP7358806B2 (ja) 2023-10-11
JP2021011404A (ja) 2021-02-04
CN216513446U (zh) 2022-05-13

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