CN116606056B - Tank wall and expansion joint closing method of glass melting furnace - Google Patents
Tank wall and expansion joint closing method of glass melting furnace Download PDFInfo
- Publication number
- CN116606056B CN116606056B CN202310645352.1A CN202310645352A CN116606056B CN 116606056 B CN116606056 B CN 116606056B CN 202310645352 A CN202310645352 A CN 202310645352A CN 116606056 B CN116606056 B CN 116606056B
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- bricks
- tank wall
- wall bricks
- pool wall
- wall
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- 238000002844 melting Methods 0.000 title claims abstract description 48
- 230000008018 melting Effects 0.000 title claims abstract description 48
- 239000011521 glass Substances 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 8
- 239000011449 brick Substances 0.000 claims abstract description 141
- 230000002146 bilateral effect Effects 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000005329 float glass Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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
- C03B5/42—Details of construction of furnace walls, e.g. to prevent corrosion; Use of materials for furnace walls
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The invention discloses a glass melting furnace tank wall and an expansion joint closing method in the technical field of glass manufacturing, comprising expansion sections and adjusting sections which are alternately arranged along the longitudinal direction of the tank wall, wherein the expansion sections comprise a plurality of tank wall bricks which are sequentially arranged along the longitudinal direction of the tank wall, and a first expansion joint is arranged between two adjacent tank wall bricks; the adjusting section comprises single-side inclined pool wall bricks and double-side inclined pool wall bricks which are longitudinally arranged along the pool wall in sequence, wherein the number ratio of the single-side inclined pool wall bricks to the double-side inclined pool wall bricks is 2:1, the double-side inclined pool wall bricks are located between the two single-side inclined pool wall bricks and form a second expansion joint, and the double-side inclined pool wall bricks can move along the longitudinal direction of the vertical pool wall and close the second expansion joint. The invention adopts a sectional adjustment mode, and the longitudinal thrust generated by the transverse movement of the bilateral inclined pool wall bricks of each adjustment section to the unilateral inclined pool wall bricks on two sides drives the unilateral inclined pool wall bricks of the adjustment section to longitudinally squeeze the pool wall bricks of each expansion section along the longitudinal direction of the pool wall, thereby realizing the closure of the first expansion joint and the second expansion joint.
Description
Technical Field
The invention relates to the technical field of glass manufacturing, in particular to a glass melting furnace tank wall and an expansion joint closing method.
Background
As shown in fig. 4, in a glass melting furnace, the tank wall structure of the melting furnace is composed of one tank wall brick, and an expansion joint is reserved between two adjacent tank wall bricks in a common design. In the heating process of the kiln, the pool wall bricks are heated and expanded, and the expansion joints between the pool wall bricks are closed. However, because of the different expansion amounts of each pool wall brick and the high-temperature shrinkage of the zirconia-containing refractory material, after the temperature rise of the glass melting furnace is finished, the expansion joint between two adjacent pool wall bricks positioned in the middle of the pool wall cannot be closed.
When the longitudinal length of the tank wall is shorter, the jackscrews at the two longitudinal sides of the tank wall can be adjusted to push the tank wall bricks to move longitudinally to close the expansion joints, but along with the popularization of the large-tonnage one-kiln two-line float glass melting furnace and the large-tonnage calendaring glass melting furnace, the longitudinal length of the tank wall of the melting furnace is gradually increased, and the closing effect of the expansion joints between the middle tank wall bricks by pushing the two longitudinal ends of the tank wall of the melting furnace is gradually reduced. In particular to an ultra-white glass melting furnace, because of the characteristic of low iron content of ultra-white glass, high Wen Chaobai glass liquid has good heat permeability, the ultra-white glass liquid can erode the gaps of pool wall bricks more seriously, and the closing of expansion joints between pool wall bricks is more important.
Therefore, how to improve the closing effect of the expansion joint between the wall bricks in the middle part of the tank wall of the melting furnace becomes a technical problem to be solved urgently by the technicians in the field.
Disclosure of Invention
In view of the above, the invention aims to provide a glass melting furnace tank wall, which solves the technical problem that the expansion joint between middle tank wall bricks of the existing melting furnace tank wall is poor in closing effect.
The technical scheme adopted by the invention is as follows: a glass melting furnace tank wall comprises expansion sections and adjusting sections which are alternately arranged along the longitudinal direction of the tank wall, wherein,
The expansion section comprises a plurality of pool wall bricks which are sequentially arranged along the longitudinal direction of the pool wall, and a first expansion joint is arranged between two adjacent pool wall bricks;
The adjusting section comprises single-side inclined pool wall bricks and double-side inclined pool wall bricks which are longitudinally arranged along the pool wall and are in a quantity ratio of 2:1, the double-side inclined pool wall bricks are located between the two single-side inclined pool wall bricks and form a second expansion joint, and the double-side inclined pool wall bricks can move along the longitudinal direction of the vertical pool wall and close the second expansion joint so as to drive the single-side inclined pool wall bricks to longitudinally extrude the pool wall bricks along the pool wall and close the first expansion joint through the movement of the double-side inclined pool wall bricks.
Preferably, the cross section of the double-side inclined pool wall brick is an isosceles trapezoid, and the base angle of the isosceles trapezoid is 60-90 degrees.
Preferably, the cross section of the unilateral inclined pool wall brick is a right trapezoid, and the inclined edge of the right trapezoid is parallel to the inclined edge of the isosceles trapezoid.
Preferably, the cross section of the pool wall brick is rectangular.
The invention further aims at providing a method for closing an expansion joint of a tank wall of a glass melting furnace, which comprises the following steps:
s10: heating the expansion section and the adjusting section of the tank wall of the glass melting furnace in a baking furnace;
S20: the bilateral inclined wall bricks of the adjusting section are driven by jackscrews arranged on the side face of the glass melting furnace wall to move towards the unilateral inclined wall bricks along the longitudinal direction of the vertical wall and close the second expansion joint until the unilateral inclined wall bricks longitudinally squeeze the wall bricks along the wall and close the first expansion joint.
The invention has the beneficial effects that:
The invention adopts a sectional adjustment mode, a plurality of adjustment sections are arranged on the tank wall of the melting furnace at intervals along the longitudinal direction of the tank wall, and the bilateral inclined tank wall bricks of each adjustment section generate longitudinal thrust to the unilateral inclined tank wall bricks on two sides through the transverse movement of the bilateral inclined tank wall bricks of each adjustment section, so that the unilateral inclined tank wall bricks of each adjustment section are driven to longitudinally extrude the tank wall bricks of each expansion section along the longitudinal direction of the tank wall, the longitudinal movement distance of each tank wall brick is reduced, the defect that the adjustment capability of pushing the tank wall to the middle tank wall from two ends of the tank wall is weak is overcome, and the expansion joint of the tank wall bricks is convenient to be closed after the expansion joint of the tank wall bricks and the baking furnace are heated to the working temperature of the melting furnace in the heating process of the glass melting furnace.
Drawings
FIG. 1 is a schematic view of the structure of a glass melting furnace tank wall of the present invention;
fig. 2 is a schematic perspective view of a glass melting furnace tank wall according to the present invention.
FIG. 3 is a schematic structural view of an adjustment section;
FIG. 4 is a schematic view of a conventional glass melting furnace wall.
The reference numerals in the drawings illustrate:
10. an expansion section;
11. pool wall bricks; 12. a first expansion joint;
20. A regulating section;
21. Single side inclined pool wall bricks; 22. bilateral inclined pool wall bricks; 23. and a second expansion joint.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and are not intended to be limiting.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In an embodiment, as shown in fig. 1,2 and 3, a glass melting furnace tank wall comprises expansion sections 10 and adjustment sections 20 alternately arranged in the longitudinal direction of the tank wall, wherein,
The expansion section 10 comprises a plurality of pool wall bricks 11 which are sequentially arranged along the longitudinal direction of the pool wall, and a first expansion joint 12 is arranged between two adjacent pool wall bricks 11.
The adjusting section 20 comprises single-side inclined wall bricks 21 and double-side inclined wall bricks 22 which are sequentially arranged along the longitudinal direction of the tank wall and have the number ratio of 2:1, the double-side inclined wall bricks 22 are positioned between the two single-side inclined wall bricks 21 and form a second expansion joint 23, and the double-side inclined wall bricks 22 can reciprocate along the longitudinal direction of the vertical tank wall and close the second expansion joint 23 so as to drive the single-side inclined wall bricks 21 to longitudinally squeeze the tank wall bricks 11 along the tank wall and close the first expansion joint 12 through the movement of the double-side inclined wall bricks 22.
The application adopts a sectional adjustment mode, a plurality of adjustment sections 20 are arranged on the tank wall of the melting furnace at intervals along the longitudinal direction of the tank wall, and the bilateral inclined tank wall bricks 22 of each adjustment section 20 transversely move to generate longitudinal thrust to the unilateral inclined tank wall bricks 21 at two sides, so that the unilateral inclined tank wall bricks 21 of each adjustment section 20 are driven to longitudinally extrude the tank wall bricks 11 of each expansion section 10 along the longitudinal direction of the tank wall, the longitudinal movement distance of each tank wall brick 11 is reduced, the defect of weak adjustment capability of the middle tank wall when the tank wall is pushed from the two longitudinal ends of the tank wall is overcome, and the expansion joint of the tank wall bricks is conveniently closed after the expansion joint of the tank wall bricks and the baking kiln are heated to the working temperature of the melting furnace in the heating process of the glass melting furnace.
The longitudinal direction of the wall in this embodiment refers to the arrow direction in fig. 1.
In a specific embodiment, as shown in fig. 2 and 3, the double-sided inclined wall bricks 22 are straight prisms extending along the vertical direction, the cross section of the double-sided inclined wall bricks 22 is isosceles trapezoid, and the base angle of the isosceles trapezoid is 60-90 degrees; the single-side inclined pool wall brick 21 is a straight prism extending vertically, the cross section of the single-side inclined pool wall brick 21 is a right trapezoid, the hypotenuse of the right trapezoid is parallel to the hypotenuse of the isosceles trapezoid, that is, the hypotenuse of the double-side inclined pool wall brick 22 is adjacent to and parallel to the hypotenuse of the single-side inclined pool wall brick 21, so that an inclined second expansion joint 23 is formed between the double-side inclined pool wall brick 22 and the single-side inclined pool wall brick 21.
This is so arranged because: when the cross section of the double-side inclined pool wall brick 22 is isosceles trapezoid and the cross section of the single-side inclined pool wall brick 21 is right trapezoid, an inclined second expansion joint 23 can be formed between the double-side inclined pool wall brick 22 and the single-side inclined pool wall brick 21, and the width of the second expansion joint 23 can be adjusted by the transverse movement of the double-side inclined pool wall brick 22, so that the second expansion joint 23 is closed; when the second expansion joint 23 is closed, the lateral movement of the two-sided inclined wall bricks 22 can generate the same longitudinal thrust to the single-sided inclined wall bricks 21 at the two longitudinal sides, so that the single-sided inclined wall bricks 21 apply the same longitudinal extrusion force to the wall bricks 11 at the two longitudinal sides of the adjusting section 20, and the closing effect of the first expansion joint 12 at the two longitudinal sides of the adjusting section 20 is ensured to be the same.
Preferably, the wall bricks 11 are straight prisms extending in the vertical direction, and the cross section of the wall bricks 11 is rectangular.
In specific embodiments, as shown in fig. 1, 2 and 3, a glass melting furnace tank wall comprises a plurality of expansion sections 10 and adjustment sections 20 which are built, and the expansion sections 10 and the adjustment sections 20 are alternately arranged along the tank wall in the longitudinal direction.
The expansion section 10 comprises a plurality of pool wall bricks 11, wherein the pool wall bricks 11 are straight prisms extending along the vertical direction, and the cross section of the pool wall bricks 11 is rectangular; the plurality of pool wall bricks 11 are sequentially arranged along the longitudinal direction of the pool wall, and a first expansion joint 12 is formed between two adjacent pool wall bricks 11, and the extending direction of the first expansion joint 12 is vertical to the longitudinal direction of the pool wall, that is, the first expansion joint 12 is arranged along the transverse direction.
The adjusting section 20 comprises single-side inclined pool wall bricks 21 and double-side inclined pool wall bricks 22 with the number ratio of 2:1, wherein the single-side inclined pool wall bricks 21 and the double-side inclined pool wall bricks 22 are sequentially arranged along the longitudinal direction of the pool wall, and the double-side inclined pool wall bricks 22 are positioned between the two single-side inclined pool wall bricks 21.
The double-sided inclined wall bricks 22 are straight prisms extending vertically, the cross section of the double-sided inclined wall bricks 22 is isosceles trapezoid, the single-sided inclined wall bricks 21 are straight prisms extending vertically, the cross section of the single-sided inclined wall bricks 21 is right trapezoid, the oblique sides of the double-sided inclined wall bricks 22 are adjacent to and parallel to the oblique sides of the single-sided inclined wall bricks 21, so that an inclined second expansion joint 23 is formed between the double-sided inclined wall bricks 22 and the single-sided inclined wall bricks 21, the included angle between the second expansion joint 23 and the longitudinal direction of the wall is an acute angle, and when the double-sided inclined wall bricks 22 move transversely, the second expansion joint 23 can be closed, and the single-sided inclined wall bricks 21 are driven to longitudinally press the wall bricks 11 along the wall to close the first expansion joint 12.
An embodiment, a method for closing an expansion joint of a tank wall of a melting furnace, comprising the following steps:
s10: and heating the glass melting furnace in a baking furnace at the expansion section 10 and the adjustment section 20 of the tank wall of the glass melting furnace.
S20: the bilateral inclined pool wall bricks 22 of the adjusting section 20 are driven by jackscrews arranged on the side surface of the pool wall of the glass melting furnace to transversely move towards the unilateral inclined pool wall bricks 21 along the longitudinal direction of the vertical pool wall and close the second expansion joint 23 until the unilateral inclined pool wall bricks 21 longitudinally press the pool wall bricks 11 along the pool wall and close the first expansion joint 12.
The closing process of the expansion joint of the tank wall of the glass melting furnace comprises the following steps:
The glass melting furnace tank wall comprises expansion sections 10 and an adjusting section 20, wherein the adjusting section 20 is arranged between the two expansion sections 10 along the longitudinal direction of the tank wall; after the temperature of the glass melting furnace is raised, the bilateral inclined pool wall bricks 22 in the adjusting section 20 can be pushed to move transversely by applying pushing force on the side surfaces, and the unilateral inclined pool wall bricks on the two sides of the bilateral inclined pool wall bricks 22 generate longitudinal pushing force on the pool wall bricks 11 of the expansion section 10 by closing the second expansion joint 23, so that the pool wall bricks 11 on the two sides of the adjusting section 20 move longitudinally and the first expansion joint 12 is closed.
Compared with the prior art, the application has at least the following beneficial technical effects:
according to the application, the expansion sections and the adjustment sections are alternately arranged on the tank wall of the glass melting furnace along the longitudinal direction, so that the sectional adjustment of each section of wall expansion section of the tank wall of the glass melting furnace is realized, the defect that the adjustment capability of pushing the tank wall from the two ends of the long tank wall to the middle tank wall is weak is overcome, and the expansion joints of the expansion bricks and the expansion joints of the closed tank wall bricks after the temperature of the baking furnace is raised to the working temperature of the melting furnace in the heating process of the baking furnace of the glass melting furnace are facilitated.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and these modifications and substitutions should also be considered as being within the scope of the present invention.
Claims (5)
1. A glass melting furnace tank wall is characterized by comprising expansion sections (10) and adjusting sections (20) which are alternately arranged along the tank wall in the longitudinal direction,
The expansion section (10) comprises a plurality of pool wall bricks (11) which are sequentially arranged along the longitudinal direction of the pool wall, and a first expansion joint (12) is arranged between two adjacent pool wall bricks (11);
the adjusting section (20) comprises single-side inclined wall bricks (21) and double-side inclined wall bricks (22) which are sequentially arranged along the longitudinal direction of the tank wall and have the quantity ratio of 2:1, the double-side inclined wall bricks (22) are positioned between the two single-side inclined wall bricks (21) and form inclined second expansion joints (23) between the double-side inclined wall bricks (22) and the single-side inclined wall bricks (21), the double-side inclined wall bricks (22) can move along the longitudinal direction of the vertical tank wall and close the second expansion joints (23), and the single-side inclined wall bricks (21) are driven to longitudinally extrude the tank wall bricks (11) along the tank wall and close the first expansion joints (12) through the movement of the double-side inclined wall bricks (22).
2. A glass melting furnace tank wall according to claim 1, characterized in that the cross section of the double-sided inclined tank wall brick (22) is an isosceles trapezoid, and the base angle of the isosceles trapezoid is 60 ° to 90 °.
3. A glass melting furnace tank wall according to claim 2, characterized in that the cross section of the single-sided inclined tank wall brick (21) is a right trapezoid, and the hypotenuse of the right trapezoid is parallel to the hypotenuse of the isosceles trapezoid.
4. A glass melting furnace tank wall according to claim 3, characterized in that the tank wall bricks (11) are rectangular in cross section.
5. A method for closing an expansion joint of a tank wall of a glass melting furnace according to claim 1, comprising the steps of:
S10: heating the expansion section (10) and the adjusting section (20) of the tank wall of the glass melting furnace in a baking furnace;
S20: the bilateral inclined wall bricks (22) of the adjusting section (20) are driven by jackscrews arranged on the side face of the glass melting furnace tank wall to move towards the unilateral inclined wall bricks (21) along the longitudinal direction of the vertical tank wall and close the second expansion joint (23) until the unilateral inclined wall bricks (21) longitudinally press the wall bricks (11) along the tank wall and close the first expansion joint (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310645352.1A CN116606056B (en) | 2023-06-01 | 2023-06-01 | Tank wall and expansion joint closing method of glass melting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310645352.1A CN116606056B (en) | 2023-06-01 | 2023-06-01 | Tank wall and expansion joint closing method of glass melting furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116606056A CN116606056A (en) | 2023-08-18 |
| CN116606056B true CN116606056B (en) | 2024-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310645352.1A Active CN116606056B (en) | 2023-06-01 | 2023-06-01 | Tank wall and expansion joint closing method of glass melting furnace |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3430429A1 (en) * | 1984-08-18 | 1986-02-27 | Sorg-GmbH & Co KG, 8770 Lohr | Glass melting furnace |
| CN201901635U (en) * | 2010-08-25 | 2011-07-20 | 郑州东方安彩耐火材料有限公司 | Expansion joint structure for big arch of glass furnace for pure oxygen combustion |
| CN203095835U (en) * | 2013-02-07 | 2013-07-31 | 蚌埠玻璃工业设计研究院 | Sealing device at convergence of gable wall and crown of flat glass melting furnace |
| DE202014000634U1 (en) * | 2014-01-23 | 2014-04-22 | N.V. Vanbockrijck | Gangway bottom plate |
-
2023
- 2023-06-01 CN CN202310645352.1A patent/CN116606056B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3430429A1 (en) * | 1984-08-18 | 1986-02-27 | Sorg-GmbH & Co KG, 8770 Lohr | Glass melting furnace |
| CN201901635U (en) * | 2010-08-25 | 2011-07-20 | 郑州东方安彩耐火材料有限公司 | Expansion joint structure for big arch of glass furnace for pure oxygen combustion |
| CN203095835U (en) * | 2013-02-07 | 2013-07-31 | 蚌埠玻璃工业设计研究院 | Sealing device at convergence of gable wall and crown of flat glass melting furnace |
| DE202014000634U1 (en) * | 2014-01-23 | 2014-04-22 | N.V. Vanbockrijck | Gangway bottom plate |
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| Publication number | Publication date |
|---|---|
| CN116606056A (en) | 2023-08-18 |
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