CN101935144A - Method and system for control temperature of liquid glass in PDP float glass kiln - Google Patents
Method and system for control temperature of liquid glass in PDP float glass kiln Download PDFInfo
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- CN101935144A CN101935144A CN 201010183689 CN201010183689A CN101935144A CN 101935144 A CN101935144 A CN 101935144A CN 201010183689 CN201010183689 CN 201010183689 CN 201010183689 A CN201010183689 A CN 201010183689A CN 101935144 A CN101935144 A CN 101935144A
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000005329 float glass Substances 0.000 title claims abstract description 17
- 235000019353 potassium silicate Nutrition 0.000 title abstract 4
- 239000011521 glass Substances 0.000 claims abstract description 42
- 238000002844 melting Methods 0.000 claims abstract description 23
- 230000008018 melting Effects 0.000 claims abstract description 23
- 239000007921 spray Substances 0.000 claims abstract description 9
- 239000002918 waste heat Substances 0.000 claims abstract description 8
- 230000001276 controlling effect Effects 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 12
- 238000005507 spraying Methods 0.000 claims description 12
- 230000033228 biological regulation Effects 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 5
- 230000028016 temperature homeostasis Effects 0.000 claims description 5
- 230000003139 buffering effect Effects 0.000 claims description 4
- 239000002826 coolant Substances 0.000 claims description 3
- 240000000233 Melia azedarach Species 0.000 claims description 2
- 238000005485 electric heating Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000005070 sampling Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 9
- 230000008859 change Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract description 2
- 238000005352 clarification Methods 0.000 abstract 1
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000005457 optimization Methods 0.000 abstract 1
- 230000008844 regulatory mechanism Effects 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000000498 cooling water Substances 0.000 description 5
- 230000002950 deficient Effects 0.000 description 3
- 239000005357 flat glass Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 210000003205 muscle Anatomy 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Abstract
The invention relates to a method and system for control temperature of liquid glass in a PDP float glass kiln, which overcomes the defects of destroyed uniformity and lowered quality of the liquid glass in the PDP float glass kiln since a neck waster pocket is suddenly cooled. A high temperature stream control system, which is arranged at the tail end region of the melting part of the kiln, is utilized to control the temperature, pressure and flow rate of the high temperature stream flow; the system structure comprises steam spray guns which are symmetrically arranged at the melting part of the kiln; and a steam buffer tank connected with a waste heat boiler, a temperature regulation mechanism, a pressure controller, a flow controller, a diversion tank and a vapor spray gun are orderly connected through self-contained pipelines. The quantitative steam cooling changes the temperature thermal experience temperature curve of the PDP substrate glass so as to change the surface properties of the liquid glass, thereby achieving the effects of optimization, clarification and debubbling, and enhancing the glass quality.
Description
Technical field
The invention belongs to the manufacturing field of sheet glass, relate to a kind of regulate and control method and system of float glass furnace temperature of glass liquid, particularly a kind of regulate and control method and system of PDP float glass furnace temperature of glass liquid.
Background technology
In glasswork is produced, particularly in the manufacturing processed of flat glass substrate, very tight to the requirement of glass quality.Guaranteeing glass quality except the characteristic of glass melting furnace itself, also is an important factor that guarantees good glass quality to the control of temperature of glass liquid, viscosity.Because the PDP preparing glass charge is difficult to fusion, the overall thermal experience temperature of glass metal will exceed 80 ℃～100 ℃ than common float glass liquid, in the melting furnaces stage, wants to be cooled to the temperature that moulding needs from top temperature, satisfy the needs of molding procedure, once taked multiple way; Present modal known technology is that the glass metal that will melt enters melting furnaces card neck place and cools off by the water coolant bag, but card neck water bag temperature is too high, can increase the load of card neck water coolant bag, as high temp glass liquid being carried out sudden strong cooling, will certainly cause the inhomogeneity reduction of glass metal, glass quality is descended, even can cause the imbalance of whole regional temperature.In order to increase its amount of cooling water, accelerate speed of cooling, take to strengthen the size of card neck water bag, though this method has reached needed temperature, but because the increase of card neck water bag amount of cooling water degenerates the homogeneity of the glass metal of process card neck, plain glass muscle defective appears often;
Summary of the invention
In order to overcome PDP float glass furnace glass metal of the prior art because card neck water bag cools off suddenly, destroyed the homogeneity of glass metal, the problem that glass quality descends, the present invention proposes a kind of regulate and control method and system of PDP float glass furnace temperature of glass liquid, the technical scheme that adopts is: a kind of regulate and control method of PDP float glass furnace temperature of glass liquid, this method is based on and realizes on the basis of high-temperature steam Controlling System, and the concrete steps of regulate and control method are:
1), the high-temperature steam air-flow in the waste heat boiler is passed into the buffering of carrying out pressure and flow in the steam buffer jar;
2), buffered high-temperature steam air-flow enters into the adjusting of carrying out temperature in the temperature control jar;
3), reaching high-temperature steam air-flow after the requirement temperature enters in the pressure-controlling jar and carries out pressure controlling by the size of control air-flow;
4), the flow of the high-temperature steam air-flow of flow director after to pressure regulation is controlled automatically;
5), adjusted high-temperature steam air-flow enters into diversion cans and realizes synthermal, same pressure, synthermal shunting;
6), the steam spraying gun of high-temperature steam air-flow through the kiln both sides after the shunting sprays into the outlet position of kiln melting end.
A kind of high-temperature steam Controlling System that above-mentioned regulate and control method is realized, be arranged at the stub area of the melting end of kiln, include the steam spraying gun that is symmetricly set on the kiln melting end in the structure, the steam buffer jar that is connected with waste heat boiler, thermoregulation mechanism, pressure controller, flow director, diversion cans, steam spraying gun connect successively by supporting pipeline.
The invention has the beneficial effects as follows: be provided with the high-temperature steam Controlling System that steam buffer jar, temperature control jar, temperature sensor, pressure controller, flow director, diversion cans, the special-purpose spray gun of steam etc. are formed at kiln melting end end according to the PDP processing requirement, by this system high-temperature steam directly is blown into kiln inside from the melting end breastwork by spray gun, the glass metal surface is quantitatively cooled off.The high-temperature steam Controlling System is arranged on the kiln stub area, and two coolings are steamed spray gun for being symmetrical arranged, quantitatively cooling, and cooling steam can not stop because of kiln changes fire, and vapor temperature is between 100 ℃～500 ℃, the H in the steam
2In the O molecule-OH can enter in the glass microcosmic reticulated structure-and O-Si-reacts, and siloxane bond ruptured, thereby reduce the viscosity of glass metal, and the bubble that helps in the glass metal is discharged.Advantage of the present invention is: by the quantitative cooling of steam the temperature thermal history temperature curve of PDP base plate glass is changed; And then the character on change glass metal surface, reach and optimize glass clarifying deaeration effect, improve glass quality.
Description of drawings
Fig. 1 overlooks cross-sectional schematic for system of the present invention.
Among the figure, 1 is the steam buffer jar, and 2 are the temperature control jar, and 3 is temperature control circuit, and 4 is pressure controller, and 5 is flow director, and 6 is diversion cans, and 7 is steam spraying gun, and 8 is the high-temperature steam air-flow, and 9 is kiln, and 10 is card neck water bag.
Embodiment
Referring to accompanying drawing, the present invention realizes curvilinear motion for the temperature at melting end that realizes PDP float glass furnace glass metal, improve the quality of glass, the technical scheme that adopts is: a kind of regulate and control method of PDP float glass furnace temperature of glass liquid, this method is based on and realizes on the basis of high-temperature steam Controlling System, and the concrete steps of regulate and control method are:
1), the high-temperature steam air-flow 8 in the waste heat boiler is passed into the buffering of carrying out pressure and flow in the steam buffer jar 1;
2), buffered high-temperature steam air-flow 8 enters into the adjusting of carrying out temperature in the temperature control jar 2;
3), reaching high-temperature steam air-flow 8 after the requirement temperature enters in the pressure-controlling jar 4 and carries out pressure controlling by the sizes of control air-flow;
4), the flow of the high-temperature steam air-flow 8 after 5 pairs of pressure regulation of flow director is controlled automatically;
5), adjusted high-temperature steam air-flow 8 enters into diversion cans 6 and realizes synthermal, same pressure, synthermal shunting;
6), the steam spraying gun 7 of high-temperature steam air-flow 8 through kiln 9 both sides after the shunting sprays into the outlet position of kiln 9 melting ends.
In the technical scheme of the present invention, described step 2) the temperature control of 2 pairs of high-temperature steam air-flows 8 of temperature control jar is to carry out temperature sampling by the temperature sensors that are arranged in the temperature control jar 2 in, by temperature control circuit 3 with the temperature controlling range that sets and the sampled data temperature regulation of back decision electric heating system working order, realization temperature control jar 2 internal cooling media relatively.
In the technical scheme of the present invention, described pressure-controlling jar 4 is regulated by pressure is carried out in the control of the supply of high-temperature steam air-flow 8.
A kind of high-temperature steam Controlling System that above-mentioned regulate and control method is realized, be arranged at the stub area of the melting end of kiln, include the steam spraying gun 7 that is symmetricly set on kiln 9 melting ends in the structure, the steam buffer jar 1 that is connected with waste heat boiler, thermoregulation mechanism, pressure controller 4, flow director 5, diversion cans 6, steam spraying gun 7 connect successively by supporting pipeline.
In the technical scheme of the present invention, include in the structure of described thermoregulation mechanism: the temperature control jar 2 of Lian Jieing, temperature sensor 3 successively.
On the special float glass production line of certain 200 tons of/day PDP electronic-grade, the temperature on the terminal arch of its kiln 9 melting ends top has been up to 1520 ℃, has exceeded about 90 ℃ than 1430 ℃ of common float glass line temperature herein; Reached 1230 ℃ that need for the temperature that makes glass metal enter melting furnaces 9 cooling ends in the past, just strengthened the size of card neck water bag 10, increase its amount of cooling water, though this method has reached needed temperature, but because the increase of card neck water bag 10 amount of cooling water, the homogeneity of the glass metal of process card neck is degenerated, occur plain glass muscle defective often; For this reason, melting end end at kiln 9 is provided with a cover steam regulator control system, use steam spraying gun 9 from the breastwork of the terminal both sides of melting end, the steam of a certain amount of proper temperature is directly sprayed in the kiln body, the temperature on the terminal arch of melting end top is controlled at 1460 ℃; Suitably reduce simultaneously the size of card neck water bag 10, reduced its amount of cooling water.
1), the high-temperature steam air-flow 8 in the waste heat boiler is passed into the buffering of carrying out pressure and flow in the steam buffer jar 1;
2), buffered high-temperature steam air-flow 8 enters into the adjusting of carrying out temperature in the temperature control jar 2;
3), reaching high-temperature steam air-flow 8 after the requirement temperature enters in the pressure-controlling jar 4 and carries out pressure controlling by the sizes of control air-flow;
4), the flow of the high-temperature steam air-flow 8 after 5 pairs of pressure regulation of flow director is controlled automatically;
5), adjusted high-temperature steam air-flow 8 enters into diversion cans 6 and realizes synthermal, same pressure, synthermal shunting;
6), the steam spraying gun 7 of high-temperature steam air-flow 8 through kiln 9 both sides after the shunting sprays into the outlet position of kiln 9 melting ends.
After the use of this method, the thermal history temperature of PDP glass metal can not only meet the demands, and the plain glass muscle defective that occurs often also disappeared, and air blister defect also has a certain amount of minimizing in the glass simultaneously.
Claims (5)
1. the regulate and control method of a PDP float glass furnace temperature of glass liquid, this method are based on realizes on the basis of high-temperature steam Controlling System that it is characterized in that: the concrete steps of regulate and control method are:
1), the high-temperature steam air-flow (8) in the waste heat boiler is passed into the buffering of carrying out pressure and flow in the steam buffer jar (1);
2), buffered high-temperature steam air-flow (8) enters into the adjusting of carrying out temperature in the temperature control jar (2);
3), reaching high-temperature steam air-flow (8) after the requirement temperature enters in the pressure-controlling jar (4) and carries out pressure controlling by the size of control air-flow;
4), flow director (5) is controlled automatically to the flow of the high-temperature steam air-flow (8) after the pressure regulation;
5), adjusted high-temperature steam air-flow (8) enters into diversion cans (6) and realizes synthermal, same pressure, synthermal shunting;
6), the steam spraying gun (7) of high-temperature steam air-flow (8) through kiln (9) both sides after the shunting sprays into the outlet position of kiln (9) melting end.
2. the regulate and control method of a kind of PDP float glass furnace temperature of glass liquid according to claim 1, it is characterized in that: control is to carry out temperature sampling by the temperature sensor that is arranged in the temperature control jar (2) to temperature control jar (2) to the temperature of high-temperature steam air-flow (8) described step 2), by temperature control circuit (3) with the temperature controlling range that sets and the sampled data temperature regulation of back decision electric heating system working order, realization temperature control jar (2) internal cooling medium relatively.
3. the regulate and control method of a kind of PDP float glass furnace temperature of glass liquid according to claim 1 is characterized in that: described pressure-controlling jar (4) is regulated by pressure is carried out in the control of the supply of high-temperature steam air-flow (8).
4. a kind of high-temperature steam Controlling System that the described regulate and control method of claim 1 is realized, be arranged at the stub area of the melting end of kiln, it is characterized in that: include the steam spraying gun (7) that is symmetricly set on kiln (9) melting end in the structure, the steam buffer jar (1) that is connected with waste heat boiler, thermoregulation mechanism, pressure controller (4), flow director (5), diversion cans (6), steam spraying gun (7) connect successively by supporting pipeline.
5. a kind of high-temperature steam Controlling System according to claim 4 is characterized in that: include in the structure of described thermoregulation mechanism: the temperature control jar (2) of Lian Jieing, temperature sensor (3) successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101836898A CN101935144B (en) | 2010-05-27 | 2010-05-27 | Method and system for control temperature of liquid glass in PDP float glass kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101836898A CN101935144B (en) | 2010-05-27 | 2010-05-27 | Method and system for control temperature of liquid glass in PDP float glass kiln |
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| Publication Number | Publication Date |
|---|---|
| CN101935144A true CN101935144A (en) | 2011-01-05 |
| CN101935144B CN101935144B (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101836898A Active CN101935144B (en) | 2010-05-27 | 2010-05-27 | Method and system for control temperature of liquid glass in PDP float glass kiln |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109305747A (en) * | 2018-10-09 | 2019-02-05 | 成都中光电科技有限公司 | A kind of double platinum channel structures of ultra thin glass substrates |
| CN112965541A (en) * | 2021-02-02 | 2021-06-15 | 台玻安徽玻璃有限公司 | Float glass kiln pressure automatic control method |
| CN113264659A (en) * | 2021-06-11 | 2021-08-17 | 深圳南玻科技有限公司 | Solar glass production system and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4424071A (en) * | 1982-09-27 | 1984-01-03 | Toledo Engineering Co., Inc. | Molten mass temperature conditioner |
| JPS61266315A (en) * | 1985-05-17 | 1986-11-26 | グラヴルベル | Glass melting tank furnace |
| JP2000313623A (en) * | 1999-04-27 | 2000-11-14 | Toyo Glass Co Ltd | Glass feeder and feeding of glass |
| CN2918411Y (en) * | 2006-07-03 | 2007-07-04 | 福耀集团（上海）汽车玻璃有限公司 | Acceleration cooling device for automobile plate tongue piece welding |
| CN101337762A (en) * | 2008-08-12 | 2009-01-07 | 武汉理工大学 | Thermal flue gas back-doping device and applications in glass melting furnace |
-
2010
- 2010-05-27 CN CN2010101836898A patent/CN101935144B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4424071A (en) * | 1982-09-27 | 1984-01-03 | Toledo Engineering Co., Inc. | Molten mass temperature conditioner |
| JPS61266315A (en) * | 1985-05-17 | 1986-11-26 | グラヴルベル | Glass melting tank furnace |
| JP2000313623A (en) * | 1999-04-27 | 2000-11-14 | Toyo Glass Co Ltd | Glass feeder and feeding of glass |
| CN2918411Y (en) * | 2006-07-03 | 2007-07-04 | 福耀集团（上海）汽车玻璃有限公司 | Acceleration cooling device for automobile plate tongue piece welding |
| CN101337762A (en) * | 2008-08-12 | 2009-01-07 | 武汉理工大学 | Thermal flue gas back-doping device and applications in glass melting furnace |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109305747A (en) * | 2018-10-09 | 2019-02-05 | 成都中光电科技有限公司 | A kind of double platinum channel structures of ultra thin glass substrates |
| CN112965541A (en) * | 2021-02-02 | 2021-06-15 | 台玻安徽玻璃有限公司 | Float glass kiln pressure automatic control method |
| CN113264659A (en) * | 2021-06-11 | 2021-08-17 | 深圳南玻科技有限公司 | Solar glass production system and method |
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| Publication number | Publication date |
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| CN101935144B (en) | 2012-07-11 |
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Application publication date: 20110105 Assignee: FUZHOU DONGXU OPTOELECTRONICS TECHNOLOGY CO.,LTD.|DONGXU OPTOELECTRONIC TECHNOLOGY Co.,Ltd. Assignor: TUNGHSU GROUP Co.,Ltd. Contract record no.: 2016990000110 Denomination of invention: Method and system for control temperature of liquid glass in PDP float glass kiln Granted publication date: 20120711 License type: Common License Record date: 20160318 |
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Inventor after: Li Qing Inventor after: Li Zhaoting Inventor after: Chen Fawei Inventor before: Li Zhaoting Inventor before: Chen Fawei |
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Effective date of registration: 20230414 Address after: 102200 201, floor 2, No. 2, yard 91, shashun Road, Changping District, Beijing Patentee after: Beijing Yuanda Xinda Technology Co.,Ltd. Address before: 050021 No. 94, Huitong Road, Hebei, Shijiazhuang Patentee before: TUNGHSU GROUP Co.,Ltd. |