CN111470756B - Independent melting wide-body melting furnace for producing electronic display glass - Google Patents
Independent melting wide-body melting furnace for producing electronic display glass Download PDFInfo
- Publication number
- CN111470756B CN111470756B CN202010447463.8A CN202010447463A CN111470756B CN 111470756 B CN111470756 B CN 111470756B CN 202010447463 A CN202010447463 A CN 202010447463A CN 111470756 B CN111470756 B CN 111470756B
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- Prior art keywords
- melting
- melting furnace
- furnace
- independent
- partition wall
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- 238000002844 melting Methods 0.000 title claims abstract description 94
- 230000008018 melting Effects 0.000 title claims abstract description 94
- 239000011521 glass Substances 0.000 title claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims abstract description 27
- 238000005192 partition Methods 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 210000000481 breast Anatomy 0.000 claims description 13
- 239000000779 smoke Substances 0.000 claims description 10
- 238000012423 maintenance Methods 0.000 abstract description 5
- 239000000156 glass melt Substances 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000006060 molten glass Substances 0.000 description 1
- 231100000817 safety factor Toxicity 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
- C03B5/02—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating
- C03B5/027—Melting 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
- C03B5/03—Tank furnaces
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Melting And Manufacturing (AREA)
Abstract
The invention provides an independent melting wide-body melting furnace for producing electronic display glass, which comprises a melting furnace (1), wherein the melting furnace (1) is internally divided into a feeding part (1 a), a melting part (1 b) and a clarifying part (1 c) along the flowing direction of glass liquid, a group of first heating electrodes (9) and a group of first burners (5) are symmetrically arranged on the tank wall of the melting part (1 b), and the independent melting wide-body melting furnace is characterized in that: the tank bottom of the charging part (1 a) and the melting part (1 b) is provided with a notch (2), the notch (2) is provided with a partition wall (3), the tank walls at the two sides of the partition wall (3) and the melting furnace (1) are provided with arch tops (10) in a straddling manner, and the partition wall (3) in the range of the melting part (1 b) is also provided with a second heating electrode (4) and a second burner (6) which are correspondingly matched with the first heating electrode (9) and the first burner (5). The invention has simple structure and convenient use, improves the productivity of the melting furnace by increasing the width of the melting furnace under the condition of not changing the heating process, and is convenient for maintenance.
Description
Technical field:
the invention relates to the field of glass production, in particular to an independent melting wide-body melting furnace for producing electronic display glass.
The background technology is as follows:
In the field of manufacturing of electronic display glass (TFT-LCD glass), a melting furnace consists of a feeding part, a melting part, a clarifying part and other parts, wherein the vertical cross section comprises a tank bottom, a tank wall, a breast wall and a crown, a smoke outlet is arranged on the breast wall, the tank bottom and the tank wall are required to be subjected to air cooling, the tank bottom and the tank wall are used for containing glass melt, an upper space is formed between a glass melt plane and the feeding part crown, a combustion space is formed between the glass melt plane and the melting part crown, and the melting furnace is integrally suspended and supported and fixed.
In order to meet the process requirement, the melting temperature of the glass liquid is up to 1680 ℃, the raw materials are heated to a molten conductive state by an oxygen-enriched burner, then the raw materials are continuously heated to the temperature required by the process by a heating electrode, the oxygen-enriched burner is arranged at the upper part of the tank wall and is higher than the plane of the glass melt, and the heating electrode is arranged at the two sides of the lower part of the tank wall and is lower than the plane of the glass melt. There is an urgent market demand for improving the melting capacity of a melting furnace in order to produce wider-format electronic display glass.
Currently, in consideration of safety factors, the voltage of the heating electrode is used to the limit, the melting capacity of the melting furnace cannot be improved by increasing the voltage, that is, the width of the furnace body cannot be increased, and the melting capacity of the melting furnace can be improved only by increasing the length of the furnace body, and only increasing the length of the melting furnace can cause a great reduction in heating efficiency. In the prior art, in order to increase the melting capacity of the melting furnace, after the width of the furnace body is increased, heating electrodes are arranged on the bottom of the furnace to shorten the distance between the heating electrodes, and in this case, the heating electrodes are completely immersed into the molten glass, and firstly, the heating electrodes are not replaceable, and secondly, the path of heating current is unfavorable for heating. Increasing the width of the melting section of a melting furnace has become a bottleneck in the development of the electronic display glass industry.
In Chinese patent 'a wide-body melting furnace (201911124368.8) for producing electronic display glass', a solution of the wide-body melting furnace is provided, but the problems of difficult heat dissipation in a cavity of a cover body, inconvenient maintenance of a heating component and the like exist.
The invention comprises the following steps:
the invention aims to overcome the defects in the prior art and provides an independent melting wide-body melting furnace for producing electronic display glass.
The application provides the following technical scheme:
An independent melting wide-body melting furnace for producing electronic display glass comprises a melting furnace, wherein the melting furnace is internally divided into a feeding part, a melting part and a clarifying part along the flowing direction of glass liquid, a group of first heating electrodes and a group of first burners are symmetrically arranged on the pool wall of the melting part, and a first smoke outlet is further arranged above the first burners, and the independent melting wide-body melting furnace is characterized in that: the tank bottom of the charging part and the melting part is provided with a notch, the notch is provided with a partition wall, the horizontal end of the notch communicated with the outside is positioned on one side of the charging part, the tank walls on the two sides of the partition wall and the melting furnace are provided with arch tops in a crossing manner, the partition wall in the range of the melting part is also provided with a second heating electrode and a second burner which correspond to the first heating electrode and the first burner, and the partition wall in the range of the melting part is also provided with a second smoke outlet which corresponds to the first smoke outlet.
On the basis of the technical scheme, the following further technical scheme is also available:
The central axis of the gap is collinear with the central axes of the feeding part and the melting part, and the horizontal end of the gap communicated with the outside is positioned on one side of the feeding part.
The invention has the advantages that:
The invention has simple structure and convenient use, improves the productivity of the melting furnace by increasing the width of the melting furnace under the condition of not changing the heating process, and is convenient for maintenance.
Description of the drawings:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
fig. 3 is a B-B cross-sectional view in fig. 1.
The specific embodiment is as follows:
as shown in fig. 1-3, an independent melting wide body melting furnace for electronic display glass production comprises a melting furnace 1, wherein the width of the melting furnace 1 is twice that of an original melting furnace.
The melting furnace 1 is internally divided into a feeding part 1a, a melting part 1b and a clarifying part 1c along the flowing direction of glass liquid 12, a group of first heating electrodes 9 are symmetrically arranged on the pool wall of the melting part 1b below the liquid level of the glass liquid 12, and the group of first heating electrodes 9 are divided into two rows and symmetrically distributed on the pool walls at two sides of the melting furnace.
The pool wall above the liquid level of the glass liquid 12 is also provided with a group of first burners 5, the group of first burners 5 are divided into two rows, and the first burners 5 are symmetrically distributed on the pool walls at two sides of the melting furnace. A first smoke hole 7 is also provided in the breast wall 11 of the melting furnace above the first burner 5. The first burner 5 is horizontally distributed above the level of the glass 12.
The bottom of each of the charging part 1a and the melting part 1b is provided with a notch 2, the central axis of the notch 2 is collinear with the central axes of the charging part 1a and the melting part 1b, and the horizontal end of the notch 2 communicated with the outside is positioned on one side of the charging part 1 a. The notch 2 is provided with a groove-shaped partition wall 3, and the charging part 1a and the melting part 1b are divided into a left charging part, a right charging part and two melting parts by the notch 2 and the partition walls 3 on two sides, wherein the left charging part, the right charging part and the melting part have independent melting functions.
Since there are two melting portions, the melting area is increased, and the amount of melting is also increased. While the notch provides convenience for maintenance personnel to perform maintenance of the second burner 6 and the second heater electrode 4, which will be described later.
The partition walls 3 located on both sides of the notch 2 in the range of the melting portion 1b are provided with second heating electrodes 4 corresponding to the first heating electrodes 9, respectively. A second burner 6 is also provided on the dividing wall 3 above the second heating electrode 4 in a distribution corresponding to the first burner 5. The second burner 6 and the first burner 5 are oxygen-enriched gas guns.
The partition walls 3 on both sides of the notch 2 are respectively provided with a breast wall 3a, and the breast wall 3a above the second burner 6 is provided with second smoke outlets 8 distributed corresponding to the first smoke outlets 7. A crown 10 is spanned between the breast walls 3a at the two sides of the notch 2 and the upper ends of the breast walls 11 of the melting furnace. The arch top 10, the breast wall 3a and the melting furnace breast wall 11 are of an integrated structure. A certain distance is arranged between the left and right arches 10.
The wavy line in the figure is a current schematic line between the second heater electrode 4 and the first heater electrode 9.
The raw materials enter two feeding parts simultaneously, flow into two melting parts and are heated simultaneously, finally flow into the same clarifying part, and flow into the next working procedure from the clarifying part after being clarified in the clarifying part.
Claims (2)
1. An independent melting wide-body melting furnace for producing electronic display glass comprises a melting furnace (1), wherein the melting furnace (1) is internally divided into a feeding part (1 a), a melting part (1 b) and a clarifying part (1 c) along the flowing direction of glass liquid, a group of first heating electrodes (9) and a group of first burners (5) are symmetrically arranged on the pool wall of the melting part (1 b), and a first smoke outlet (7) is further arranged above the first burners (5), and the independent melting wide-body melting furnace is characterized in that: a gap (2) is arranged at the tank bottoms of the feeding part (1 a) and the melting part (1 b), a partition wall (3) is arranged on the gap (2), the horizontal end of the gap (2) communicated with the outside is positioned at one side of the feeding part (1 a), a crown (10) is arranged on the tank walls of the partition wall (3) and the two sides of the melting furnace (1) in a straddling manner, a second heating electrode (4) and a second burner (6) which are corresponding to a first heating electrode (9) and a first burner (5) are also arranged on the partition wall (3) in the range of the melting part (1 b), and second smoke outlets (8) which are corresponding to a first smoke outlet (7) are also arranged on the partition wall (3) in the range of the melting part (1 b); and arch tops (10) are arranged between the breast walls (3 a) at two sides of the notch (2) and the upper ends of the breast walls (11) of the melting furnace in a crossing manner, the arch tops (10) and the breast walls (3 a) and the breast walls (11) of the melting furnace are of an integrated structure, and a certain distance is arranged between the two arch tops (10).
2. An independent melting furnace for producing electronic display glass according to claim 1, wherein: the central axis of the notch (2) is collinear with the central axes of the feeding part (1 a) and the melting part (1 b), and the horizontal end of the notch (2) communicated with the outside is positioned at one side of the feeding part (1 a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010447463.8A CN111470756B (en) | 2020-05-25 | 2020-05-25 | Independent melting wide-body melting furnace for producing electronic display glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010447463.8A CN111470756B (en) | 2020-05-25 | 2020-05-25 | Independent melting wide-body melting furnace for producing electronic display glass |
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| Publication Number | Publication Date |
|---|---|
| CN111470756A CN111470756A (en) | 2020-07-31 |
| CN111470756B true CN111470756B (en) | 2024-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010447463.8A Active CN111470756B (en) | 2020-05-25 | 2020-05-25 | Independent melting wide-body melting furnace for producing electronic display glass |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113636741A (en) * | 2021-08-20 | 2021-11-12 | 中国建材国际工程集团有限公司 | All-electric glass melting furnace |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102300818A (en) * | 2009-01-31 | 2011-12-28 | 索尔格投资有限及两合公司 | Melting device for producing glass melts |
| CN107522387A (en) * | 2017-09-14 | 2017-12-29 | 中国建材国际工程集团有限公司 | Melting furnaces for TFT glass |
| CN209957636U (en) * | 2019-03-13 | 2020-01-17 | 泰安恒成复合材料工程技术有限公司 | Kiln with large melting rate |
| CN110818225A (en) * | 2019-11-18 | 2020-02-21 | 中建材蚌埠玻璃工业设计研究院有限公司 | Wide-body melting furnace for electronic display glass production |
| CN212357006U (en) * | 2020-05-25 | 2021-01-15 | 中建材蚌埠玻璃工业设计研究院有限公司 | Independent melting wide-body melting furnace for electronic display glass production |
-
2020
- 2020-05-25 CN CN202010447463.8A patent/CN111470756B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102300818A (en) * | 2009-01-31 | 2011-12-28 | 索尔格投资有限及两合公司 | Melting device for producing glass melts |
| CN107522387A (en) * | 2017-09-14 | 2017-12-29 | 中国建材国际工程集团有限公司 | Melting furnaces for TFT glass |
| CN209957636U (en) * | 2019-03-13 | 2020-01-17 | 泰安恒成复合材料工程技术有限公司 | Kiln with large melting rate |
| CN110818225A (en) * | 2019-11-18 | 2020-02-21 | 中建材蚌埠玻璃工业设计研究院有限公司 | Wide-body melting furnace for electronic display glass production |
| CN212357006U (en) * | 2020-05-25 | 2021-01-15 | 中建材蚌埠玻璃工业设计研究院有限公司 | Independent melting wide-body melting furnace for electronic display glass production |
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| CN111470756A (en) | 2020-07-31 |
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Country or region after: China Address after: 233010 Tushan Road 1047, Yuhui District, Bengbu City, Anhui Province Applicant after: China Building Materials Glass New Materials Research Institute Group Co.,Ltd. Address before: 233010 Tushan Road 1047, Yuhui District, Bengbu City, Anhui Province Applicant before: CHINA BUILDING MATERIALS BENGBU GLASS INDUSTRY DESIGN & RESEARCH INSTITUTE Co.,Ltd. Country or region before: China |
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