CN111410404A - Rolled glass melting furnace and reinforcing method thereof - Google Patents
Rolled glass melting furnace and reinforcing method thereof Download PDFInfo
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- CN111410404A CN111410404A CN202010248854.7A CN202010248854A CN111410404A CN 111410404 A CN111410404 A CN 111410404A CN 202010248854 A CN202010248854 A CN 202010248854A CN 111410404 A CN111410404 A CN 111410404A
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- 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
- C03B5/04—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in tank furnaces
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B13/00—Rolling molten glass, i.e. where the molten glass is shaped by rolling
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- 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
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Abstract
The invention discloses a rolled glass melting furnace and a reinforcing method thereof, wherein a transition arch structure is arranged between a lateral passage and a transverse passage, the transition arch structure comprises a section of transition breast wall clamped between a lateral passage breast wall and a lateral passage breast wall, the transition breast wall and the lateral passage breast wall are integrally built, the height of the transition breast wall is lower than that of the lateral passage breast wall, and the transition arch structure also comprises a transition arch crossing the transition breast wall; the heights of the branch passage inlet arch, the transition arch and the branch passage arch are sequentially increased to form a stepped arch structure. Thus, the high-temperature gas emitted by the expansion straight joint can be prevented from burning the supporting steel member of the cross passage arch, and the sealing treatment of the expansion straight joint can be carried out; and the outer side of the transverse passage breast wall at the side of the branch passage is exposed in the air, and the air can play a role in cooling the transverse passage breast wall.
Description
Technical Field
The invention relates to the technical field of glass production, in particular to a rolled glass melting furnace and a method for reinforcing the rolled glass melting furnace.
Background
The photovoltaic glass is a high-transmittance glass material for photovoltaic modules and is produced by adopting a calendering process. The larger the melting capacity of the glass melting furnace is, the lower the energy consumption is, and the lower the manufacturing cost of the corresponding glass is. The melting furnace for photovoltaic glass production is therefore a furnace with multiple lines (multiple branch channels), namely: a plurality of branch passages are arranged on one side of one transverse passage and perpendicular to the transverse passage, and all the branch passages are connected in parallel on the transverse passage. In normal production, glass raw materials are firstly melted into molten glass at high temperature in a melting tank of a glass melting furnace, then flow into a transverse passage for cooling, further flow into a branch passage for further cooling, and are sent into a forming area for forming after reaching the forming temperature. Due to the flow of the molten glass, the spaces among the melting tank, the lateral passage and the branch passage are communicated with each other by the flow of the molten glass.
The largest glass melting furnace I for photovoltaic glass is a five-line furnace (namely five branch passages, see figure 1), namely five branch passages III are distributed on a transverse passage II; the length of the transverse passage breast wall reaches 45 meters, and the height reaches 1.8 meters. The connection between the transverse channel II and the branch channel III is shown in FIG. 4 (FIG. 4 is a cross-sectional view taken along the line A-A in FIG. 1). However, in a baking furnace (i.e., the furnace is baked to gradually raise the temperature to a desired temperature before being built to be put into normal production) or in a normal production process, the transverse passage breast wall is always in a high temperature state, and the long and high transverse passage breast wall is easily deformed and even collapsed, so that the glass melting furnace cannot be safely operated for the whole furnace age.
The glass process requires that the temperature of the glass liquid is stabilized at 1150-1250 ℃ after being cooled by the branch passages, the temperature difference cannot exceed +/-1 ℃, and the space pressure of the glass liquid is micro-positive pressure. When molten glass flows into the transverse passage from the high-temperature melting tank, high-temperature gas in the partial melting tank is brought. In order to prevent the high-temperature gas from flowing into the branch passage again and affecting the stability of the branch passage glass liquid temperature and pressure, the cross-sectional area of the branch passage inlet arch 3 at the intersection of the cross passage and the branch passage is reduced as much as possible, that is, the opening degree of the branch passage inlet arch 3 is reduced as much as possible, so that the width and height H of the inlet arch 3 are required to be reduced as much as possible1Are reduced as much as possible. The branch passage inlet arch 3 is directly built on the pool wall top surface of the molten glass pool, the width of the inlet arch 3 needs to be matched with the width of the branch passage and is difficult to change, so that only the inlet arch 3 can be usedThe height is as low as possible to minimize the introduction of hot gases into the branch channel iii.
However, the branch passage iii requires the rolling process, and requires the kiln holes 9 and the air blowing holes 10 integrated with the branch passage breast wall 8 to be embedded in the branch passage breast wall 8, and therefore the kiln holes 9 and the air blowing holes 10 must be installed only when the branch passage breast wall 8 has a certain height (not less than 460 mm). And because the branch passage arch 7 of the branch passage III is directly contacted with the cross passage breast wall 2, the top surface of the cross passage breast wall 2 is higher than the arch top of the branch passage arch 7, namely the height of the cross passage breast wall 2 is higher than the sum of the heights of the branch passage breast wall 8 and the branch passage arch 7, the safety height of the branch passage arch 7 is about 900mm, and expansion gaps are reserved between the branch passage arch 7 and the branch passage breast wall 8 and between the branch passage breast wall 8 and the top surface of the branch passage glass liquid pool VII pool wall. Therefore, the height of the support passage arch 7 is more than or equal to 1650mm, and the height H of the transverse passage breast wall 2 needs more than or equal to 1800mm to meet the requirement. The contact part of the support passage arch 7 and the transverse passage breast wall 2 has an expansion straight slit 14, high-temperature gas can emerge during the baking kiln and normal operation, the high-temperature gas can not seal the high-temperature gas, and the support steel member 13 of the transverse passage arch 1 can be burnt by the high-temperature gas, so that the transverse passage arch 1 has a safety problem and can be collapsed seriously. Meanwhile, in the baking kiln or the normal production process, the transverse passage breast wall 2 with the length of 45 meters and the height of 1.8 meters is high in gravity center, the inner surface and the outer surface of the transverse passage breast wall 2 on the side directly contacting with the branch passage arch 7 are in high-temperature environments, the inner side and the outer side are subjected to physical erosion and chemical erosion of high-temperature gas, the transverse passage breast wall is easy to burn and deform, and the transverse passage breast wall cannot be thermally repaired in a hot state, so that the transverse passage breast wall finally collapses. One of the two conditions is caused to suspend production, and glass liquid needs to be discharged in advance to carry out cold repair on the glass melting furnace, so that the production efficiency of glass is reduced, and the production cost is increased.
Disclosure of Invention
The invention aims to overcome the technical defects in the prior art, and provides a rolled glass melting furnace in a first aspect, which comprises the following components: the stepped crown structure is set in the rolled glass melting furnace, and the length of the branch passage inlet crown is increased at the same time, so that the transition crown and the branch passage crown are both far away from the cross passage breast wall, therefore, the height of the cross passage breast wall does not need to be higher than the crown of the branch passage crown, and the height of the cross passage breast wall can be reduced. The height of the transverse passage breast wall is reduced, 1) the gravity center of the transverse passage breast wall is moved downwards, and the stability and the safety of the whole structure of the breast wall are improved; 2) the area of the transverse passage breast wall subjected to physical erosion and chemical erosion of flame gas is reduced, and particularly, the two sides of the transverse passage breast wall body in contact with the branch passages are prevented from being subjected to physical erosion and chemical erosion of the flame gas, so that the temperature of each part of the transverse passage breast wall body is uniform, and the problems of wall deformation and inclined collapse caused by nonuniform temperature and different burning loss degrees of each part of the wall body are solved.
The rolled glass melting furnace comprises a transverse passage and a plurality of branch passages vertically arranged on one side of the transverse passage, wherein the transverse passage comprises a transverse passage breast wall arranged in parallel and a transverse passage arch built on the top surface of the transverse passage breast wall, and the branch passages comprise a branch passage breast wall arranged in parallel and a branch passage arch built on the top surface of the branch passage breast wall; a branch passage inlet arch is laid on the top surface of the branch passage glass liquid pool wall at the intersection of the cross passage and the branch passage, the branch passage inlet arch is positioned at the bottom of the cross passage at the intersection of the branch passage and the branch passage, a transition arch structure is arranged between the branch passage and the cross passage, the transition arch structure comprises a section of transition breast wall clamped between a cross passage breast wall and a branch passage breast wall, the transition breast wall and the branch passage breast wall are integrally laid, the height of the transition breast wall is lower than that of the branch passage breast wall, and the transition arch also comprises a transition arch which spans on the transition breast wall; the heights of the branch passage inlet arch, the transition arch and the branch passage arch are sequentially increased to form a stepped arch structure.
The height of the transition arch is 235mm-610mm lower than that of the branch passage arch and 150mm-240mm higher than that of the branch passage inlet arch.
The height H of the transition breast wall2Is 180mm-200mm, and the height of the arch crown of the transition arch from the top surface of the transition breast wall is 600mm-650 mm.
The branch passage inlet arch is laid on the top surface of the branch passage glass liquid pool wall, and the height H of the branch passage inlet arch top from the top surface of the branch passage glass liquid pool wall1Is 610mm-630 mm.
Height H of said branch passage breast wall3350mm-460mm, and the branch passage archThe height of the top from the top surface of the branch passage breast wall is 735mm-930 mm.
The length of the branch passage inlet arch is greater than the thickness of the cross passage breast wall so as to separate the transition breast wall and the transition arch from the cross passage breast wall without contact.
The length of the branch passage inlet arch is 1.8-2 times of the thickness of the cross passage breast wall, and preferably the length of the branch passage inlet arch is L1Is 810mm-920 mm.
The height H of the transverse passage breast wall is 1350mm-1390 mm.
In a second aspect, the invention provides a method for reinforcing a rolled glass melting furnace, wherein the rolled glass melting furnace is the rolled glass melting furnace, and the method specifically comprises the following steps: the length of the branch passage inlet arch is increased to be larger than the thickness of the cross passage breast wall towards the direction of the branch passage, a transition breast wall is built between the outer side of the branch passage inlet arch and the branch passage breast wall, and the transition arch is built on the transition breast wall;
preferably, the height H of the transverse passage breast wall is reduced to 1350mm-1390 mm.
When the support passage inlet arch, the transition arch and the support passage arch are built, the heights of all the arches are kept to be increased in sequence to form a stepped arch structure; when the branch passage inlet arch is built, the length of the branch passage inlet arch is lengthened between the transition arch and the cross passage breast wall; preferably, the length of the branch passage inlet arch is lengthened to 1.8-2 times the thickness of the cross passage breast wall.
In the rolled glass melting furnace, a transition arch is arranged between the branch passage inlet arch and the branch passage arch, and the heights of the branch passage inlet arch, the transition arch and the branch passage arch are sequentially increased to form a stepped arch structure; and meanwhile, the length of the branch passage inlet arch is increased, so that the length of the branch passage inlet arch is 1.8-2 times of the thickness of the cross passage breast wall. Thus, the expansion straight joint between the branch passage inlet arch and the transition arch is far away from the cross passage breast wall, so that the high-temperature gas emitted by the expansion straight joint is prevented from ablating the supporting steel member of the cross passage arch, and the temperature at the position can also carry out the sealing treatment of the expansion straight joint; and a large gap is formed between the transverse passage breast wall and the transition arch, so that the outer side of the transverse passage breast wall at the branch passage side is exposed in the air, the air can play a cooling role on the transverse passage breast wall, and the inner surface and the outer surface of the transverse passage breast wall are prevented from being subjected to physical erosion and chemical erosion of flame gas. In addition, since the transition arch and the branch passage arch are not in direct contact with the cross passage breast wall, the height of the cross passage breast wall is not higher than that of the crown of the branch passage arch, namely: the stepped arch structure can reduce the height of the transverse passage breast wall, so that the height of the transverse passage breast wall is reduced from 1800mm to 1350mm-1390 mm. The height of the transverse passage breast wall is reduced, the gravity center of the transverse passage breast wall moves downwards, and the stability of the whole transverse passage breast wall structure is improved. In a word, the addition of the stepped arch structure can ensure that the glass melting furnace for the photovoltaic glass by the calendering process can smoothly and safely run for a whole furnace age as long as 10 years.
Drawings
FIG. 1 is a schematic structural view of a glass melting furnace for photovoltaic glass by a calendering process;
FIG. 2 is a cross-sectional view taken along section A-A of FIG. 1 showing a stepped crown configuration of the rolled glass melting furnace of the present invention;
FIG. 3 is a cross-sectional view taken at section B-B of FIG. 2 showing the stepped crown structure of the rolled glass melting furnace of the present invention;
FIG. 4 is a schematic structural view of a cross section A-A of the conventional glass melting furnace shown in FIG. 1;
FIG. 5 is a schematic structural view of a D-D section of the conventional glass melting furnace shown in FIG. 4.
Detailed Description
In order to prolong the service life of the glass melting furnace for photovoltaic glass by a rolling process method, a transition arch is additionally arranged between a branch passage inlet arch and a branch passage arch as a reinforcing device, and the height of the transition arch (the height of the arch refers to the distance from the arch top to the top surface of the wall of the molten glass pool) is 235mm-610mm lower than that of the branch passage arch and 150mm-240mm higher than that of the branch passage inlet arch. The branch passage inlet arch is laid on the pool wall top surface of the transverse passage molten glass pool, the height of the corresponding breast wall is 0, and the height of the inlet arch top from the pool wall top surface is 610mm-630 mm; the transition arch is laid on the breast wall of the transition arch, and the height H of the breast wall2180mm-200mm, the transition arch crown is far from the top surface of the breast wallThe height is 600mm-650 mm; breast wall height H for arch laying of support channel3350mm-460mm, and the height of the arch crown of the branch passage from the top surface of the breast wall is 735mm-930 mm; therefore, along the glass liquid flow direction, the heights of the branch passage inlet arch, the transition arch and the branch passage arch are sequentially increased to form a stepped arch structure. Meanwhile, the length of the branch passage inlet arch is increased towards the direction of the branch passage, the cross passage breast wall is separated from the branch passage arch, and the expansion straight joint between the branch passage arch and the branch passage inlet arch is far away from the cross passage breast wall. If the length of the branch passage inlet arch is increased, the height of the branch passage inlet arch is lower than that of the branch passage arch, so that the branch passage inlet arch cannot be in seamless connection with the branch passage arch, a gap is formed between the branch passage inlet arch and the branch passage arch, the internal space of the branch passage is communicated with the outside, and the temperature and pressure of glass liquid in the branch passage cannot be guaranteed to be stable. In the stepped arch structure, the branch passage inlet arch and the transition arch are overlapped during building, and the transition arch and the branch passage arch are also overlapped without a crack, so that the inside of the branch passage is not communicated with the outside.
Set up this glass melting furnace of cascaded arch structure, compare with current photovoltaic glass melting furnace: 1) the height of the transverse passage breast wall is reduced, the center of gravity is moved downwards, and the stability of the whole breast wall structure is improved; 2) the outer side of the transverse passage breast wall adjacent to the side of the branch passage is exposed in ambient air, so that the physical scouring erosion and chemical erosion of high-temperature gas on the two sides of the transverse passage breast wall are avoided; 3) the expansion straight joint is far away from the cross passage breast wall, so that the possibility that high-temperature gas penetrating from the expansion straight joint ablates the arch support steel member of the cross passage is avoided, and the sealing treatment of the expansion straight joint is facilitated.
The three advantages ensure that the integral structure of the cross passage breast wall and the cross passage arch has good stability and simple structure, is beneficial to building, and can ensure that the photovoltaic glass melting furnace produced by the calendering process can smoothly and safely run for a whole furnace age period of 10 years.
The present invention will be described more specifically and further illustrated with reference to specific examples, which are by no means intended to limit the scope of the present invention.
As shown in figures 2 and 4, a cross passage II of the rolled glass melting furnace comprises an upper space and a lower space, the lower space comprises a cross passage glass liquid pool VI, the cross passage glass liquid pool VI is an open groove-shaped pool consisting of a cross passage pool bottom 5 and two oppositely arranged cross passage pool walls 4, two sides of each cross passage glass liquid pool wall 4 are also provided with vertical columns VIII, a cross passage breast wall 2 is built on the top surface of each cross passage glass liquid pool wall along the length direction of the cross passage, the cross passage breast wall 2 is fixed on the vertical columns VIII and the top end of each cross passage pool wall 4 through lower support brackets V, the thickness L of the cross passage breast wall 2 is 450mm-460mm, the top of the cross passage breast wall 2 is provided with an arch shape, the cross passage 1 connecting the opposite breast walls, an upper support bracket IV is arranged between the cross passage breast wall 1 and the cross passage pool wall 2 for supporting the cross passage arch 1, the cross passage wall 2 and the cross passage 1 jointly form the upper space of the cross passage II, the cross passage II is communicated with a plurality of glass melting channels II in the conventional structure (H-1390 mm) in a similar mode that the cross passage glass melting furnace is vertically communicated with the left side channel III-1392.
The structure of the branch passage III is shown in the combined drawings of fig. 2-5, and is basically the same as that of the transverse passage II, and also comprises an upper space and a lower space, wherein the lower space comprises a branch passage molten glass pool VII, and the branch passage molten glass pool VII is an open groove-shaped pool consisting of a branch passage pool bottom 12 and two oppositely arranged branch passage pool walls 11. And two sides of the cell wall 11 of the branch passage molten glass cell VII are also provided with vertical columns VIII. A branch passage breast wall 8 is built on the top surface of the pool wall along the length direction of the branch passage, the branch passage breast wall 8 is fixed on the upright post VIII and the top end of the branch passage pool wall 11 through a lower support bracket V, and the height H of the branch passage breast wall 83Is 350mm-460 mm. The top of the branch passage breast wall 8 is built with an arched branch passage arch 7 which connects the breast walls at two opposite sides, and the height of the arch top of the branch passage arch 7 from the top surface of the branch passage breast wall 8 is 735mm-930 mm; an upper support bracket IV is arranged between the branch passage arch 7 and the branch passage breast wall 8 for supporting the branch passage arch 7, the branch passage breast wall 8 and the branch passage arch7 together form the upper space of branch channel iii. The branch passage breast wall 8 is also provided with a kiln baking hole 9 and an air blowing hole 10 which are communicated with the outside of the kiln. In the present embodiment, the structure of the branch passage is not changed.
A branch passage inlet arch 3 is provided at a position where the branch passage iii intersects the lateral passage ii, that is, at a starting point of the branch passage iii (starting from a flow direction of the molten glass, starting from an inflow direction of the molten glass, and ending from an outflow direction). The branch passage inlet arch 3 is laid at the intersection point of the cross passage molten glass pool VI and the branch passage molten glass pool VII, and the circular arc-shaped arch structure supports the cross passage breast wall 2 at the intersection point to ensure the stability of the breast wall. The branch passage inlet arch 3 is directly laid on the upper part of the branch passage molten glass pool VII, two ends of the branch passage inlet arch 3 are respectively fixed on the tops of two pool walls of the branch passage molten glass pool VII, the branch passage inlet arch 3 is positioned on one side of a transverse passage breast wall 2 (the right side shown in figure 4) connected with the branch passage inlet arch 3, namely: a part of the bottom of the transverse passage breast wall at the intersection with the branch passage III is removed, and the transverse passage breast wall is directly laid on the top surface of the branch passage glass liquid pool wall 11 (not on the branch passage breast wall 8) and spans between the branch passage glass liquid pool walls 11. The arch top of the branch passage inlet arch 3 is away from the top of the pool wall of the cross passage molten glass pool VI1Is 610mm-630mm, length L1(i.e., the length along the length of branch channel III) is 810mm-920 mm. Since the branch passage inlet arch 3 is built at the bottom of the cross passage breast wall 2, the cross passage breast wall 2 is still used as a connection between the crown of the inlet arch 3 and the cross passage arch 1.
In this embodiment, a transition arch 6 is additionally provided between the branch passage inlet arch 3 and the branch passage breast wall 8, as shown in fig. 2 and 3. A section of transition breast wall 15 is additionally arranged between the branch passage inlet arch 3 and the branch passage breast wall 8, the transition breast wall 15 and the branch passage breast wall 8 are integrally built, the length of the transition breast wall 15 is 800mm, and the height H2Is 180mm-200 mm. The transition breast wall 15 is built with a transition arch 6, and the height of the arch top of the transition arch 6 from the top surface of the transition breast wall 15 is 600mm-650 mm.
The heights of the branch passage inlet arch 3, the transition arch 6 and the branch passage arch 7 (namely the distance from the arch tops of all the arches to the top surface of the branch passage glass liquid pool wall) are sequentially increased to form the stepped arch structure. Step (A)In the glass melting furnace with the stepped arch structure, the height H of the transverse passage breast wall 2 is only 1350mm-1390mm, the height H of the breast wall 2 of a 45 m transverse passage II is reduced by 400mm-450mm compared with the height H of the conventional melting furnace transverse passage breast wall, the gravity center of the transverse passage breast wall 2 is reduced, the integral stability of the transverse passage breast wall 2 is greatly enhanced, in addition, along with the increase of the length of the inlet 3 of the transverse passage, the outer side of the transverse passage breast wall 2 on the right side can be exposed in atmospheric ambient air, the cooling effect of the ambient air enhances the physical scouring and chemical erosion resistance of the transverse passage breast wall 2 against the high-temperature atmosphere of the glass melting furnace, and the length of the inlet L of the transverse passage breast wall 3 is L1The thickness of the expansion straight seam 14 is 1.8-2 times of the thickness L of the cross passage breast wall 2, so that the expansion straight seam 14 between the branch passage inlet arch 3 and the transition arch 6 (the existing melting furnace is the expansion straight seam between the cross passage and the branch passage) is far away from the support steel member 13 of the cross passage breast wall 2, the possibility that high-temperature gas emitted by the expansion straight seam 14 ablates the support steel member 13 is avoided, and meanwhile, enough space and conditions (namely, the temperature is not too high) are provided for sealing the expansion straight seam 14, the height of the cross passage breast wall 2 is reduced, the outer side of the cross passage breast wall is exposed in the air of the atmospheric environment, and the expansion straight seam 14 is far away from the support steel member 13, so that the triple effects of ensuring that the cross passage breast wall 1 and the cross passage breast wall 2 are not easy to ablate, deform and collapse easily, and the furnace runs safely and stably for 10 years.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the content of the present invention.
Claims (10)
1. A kind of rolling glass melting furnace, including the cross passage and several branch passages set up on one side of the cross passage vertically, the cross passage includes the cross passage breast wall set up in parallel and cross passage arch built on the breast wall top surface of the cross passage, the branch passage includes the branch passage breast wall set up in parallel and branch passage arch built on the breast wall top surface of the branch passage; a branch passage inlet arch is laid on the top surface of the branch passage glass liquid pool wall at the intersection of the cross passage and the branch passage, and is positioned at the bottom of the cross passage at the intersection with the branch passage, and the branch passage glass liquid pool wall is characterized in that a transition arch structure is arranged between the branch passage and the cross passage and comprises a section of transition breast wall clamped between a cross passage breast wall and a branch passage breast wall, the transition breast wall and the branch passage breast wall are integrally laid and are lower than the branch passage breast wall in height, and the transition arch spans across the transition breast wall; the heights of the branch passage inlet arch, the transition arch and the branch passage arch are sequentially increased to form a stepped arch structure.
2. The drawn glass melting furnace according to claim 1, wherein the transition crown has a height lower than the height of the backup pass crown by 235mm to 610mm and higher than the height of the backup pass inlet crown by 150mm to 240 mm.
3. The drawn glass melter of claim 2 wherein the transition breast wall height H2Is 180mm-200mm, and the height of the arch crown of the transition arch from the top surface of the transition breast wall is 600mm-650 mm.
4. The drawn glass melting furnace according to claim 2 or 3, wherein the branch passage inlet arch is laid on a top surface of the branch passage glass liquid pool wall, and a height H of the branch passage inlet arch from the top surface of the branch passage glass liquid pool wall1Is 610mm-630 mm.
5. The drawn glass melting furnace of any of claims 2 to 4, wherein the height H of the branch passage breast wall3350mm-460mm, and the height of the arch crown top of the branch passage from the top surface of the branch passage breast wall is 735mm-930 mm.
6. The drawn glass melting furnace of any of claims 1 to 5, wherein the length of the branch passage inlet crown is greater than the thickness of the cross passage breast wall to isolate the transition breast wall and the transition crown from contact with the cross passage breast wall.
7. The drawn glass melter of claim 6, wherein the length of the bypass inlet arch is 1.8-2 times the thickness of the cross passage breast wall, preferably L1Is 810mm-920 mm.
8. The drawn glass melting furnace of any of claims 1 to 7, wherein the height H of the transverse passage breast wall is 1350mm to 1390 mm.
9. A method for reinforcing a rolled glass melting furnace, which is characterized in that the rolled glass melting furnace is the rolled glass melting furnace of any one of claims 1 to 8, and comprises the following steps: the length of the branch passage inlet arch is increased to be larger than the thickness of the cross passage breast wall towards the direction of the branch passage, a transition breast wall is built between the outer side of the branch passage inlet arch and the branch passage breast wall, and the transition arch is built on the transition breast wall;
preferably, the height H of the transverse passage breast wall is reduced to 1350mm-1390 mm.
10. The rolled glass melter strengthening method as claimed in claim 9, wherein the heights of the branch passage inlet arch, the transition arch and the branch passage arch are kept to be sequentially increased to form a stepped arch structure when the branch passage inlet arch, the transition arch and the branch passage arch are built; when the branch passage inlet arch is built, the length of the branch passage inlet arch is lengthened between the transition arch and the cross passage breast wall; preferably, the length of the branch passage inlet arch is lengthened to 1.8-2 times the thickness of the cross passage breast wall.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113480142A (en) * | 2021-07-21 | 2021-10-08 | 甘肃旭康材料科技有限公司 | Glass kiln |
| CN115010346A (en) * | 2022-07-19 | 2022-09-06 | 中国建材国际工程集团有限公司 | Cold repair method and structure of main crown of glass melting furnace |
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| SU1662954A1 (en) * | 1989-06-29 | 1991-07-15 | Государственный Институт По Проектированию Предприятий Промышленности Строительных Материалов "Гипростройматериалы" | Bath furnace for melting mineral materials |
| CN102140005A (en) * | 2010-11-25 | 2011-08-03 | 张家港华汇特种玻璃有限公司 | Horizontal flame melting furnace |
| CN102219349A (en) * | 2011-04-12 | 2011-10-19 | 安徽华强玻璃科技有限公司 | Charge pre-melting pool of crystal glass kiln |
| CN104030547A (en) * | 2014-07-05 | 2014-09-10 | 蚌埠玻璃工业设计研究院 | Plate glass melting furnace clarification portion stepped arch top |
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| CN113480142A (en) * | 2021-07-21 | 2021-10-08 | 甘肃旭康材料科技有限公司 | Glass kiln |
| CN115010346A (en) * | 2022-07-19 | 2022-09-06 | 中国建材国际工程集团有限公司 | Cold repair method and structure of main crown of glass melting furnace |
| CN115010346B (en) * | 2022-07-19 | 2023-10-03 | 中国建材国际工程集团有限公司 | Cold repair method and structure for glass melting furnace crown |
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