CN102503078A - Two-slot type glass tank - Google Patents
Two-slot type glass tank Download PDFInfo
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- CN102503078A CN102503078A CN2011103390710A CN201110339071A CN102503078A CN 102503078 A CN102503078 A CN 102503078A CN 2011103390710 A CN2011103390710 A CN 2011103390710A CN 201110339071 A CN201110339071 A CN 201110339071A CN 102503078 A CN102503078 A CN 102503078A
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- 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
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- 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
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Abstract
The invention discloses a glass tank, which is a two-slot type glass tank. Heating electrodes are arranged on a pool bottom and pool walls of a molten pool, each pool bottom electrode and electrodes on adjacent two side pool walls form a heating loop, and each two heating loops forms a group of parallel electrodes; a bubbler and a kiln bank are arranged on a pool bottom of a work pool, pool bottoms on an upstream end and a downstream end of the kiln bank are respectively provided with dumping holes, and overflowing holes are also arranged in two side pool walls at the lower reach of the work pool; and the molten pool is connected with the work pool through a throat (a hidden bridge), and dumping holes are also arranged in the bottom part of the throat. According to the two-slot type glass tank, the problems of clarification and homogenization of high-melting glass can be solved, and the two-slot type glass tank is particularly suitable for melting high alumino silicate glass and high borosilicate glass.
Description
Technical field:
The present invention relates to be used for the Thermal Equipment that glass is made, be specifically related to a kind of two slot type glass melting furnaces.
Background technology:
Glass melting furnace is the important Thermal Equipment in the glass works, is described as " heart " of glass works.After admixtion is added the high temp glass tank furnace; A series of physics, chemistry and physicochemical variation can take place; Through formation, the formation of glass, the clarification of glass, homogenizing, the cooling of persilicate, the final glass metal that forms almost bubble-free, no foreign matter, uniform component, suitable moulding.
Glass melting furnace is the high energy consumption Thermal Equipment, its energy consumption in glass works accounting up to more than 50%, have in addition up to 80%; The thermo-efficiency of glass melting furnace is 30%~70%; The height of tank furnace thermo-efficiency is except outside the Pass having with energy resource supply mode and the glass types of being produced, tank furnace tonnage, tank furnace insulation, tank furnace technology; Also closely bound up with structure design, new technology employing, the design concept of tank furnace; Final decision the quality and the economic and social benefits of glass, significant.
In recent years; TFT liquid crystal glass base, touch-screen cover-plate glass demand increase sharply, and the alkali-free high-boron-silicon glass that they adopt, have the high aluminosilicate glass of alkali to be high-viscosity glass (when viscosity was 1000 whens pool, corresponding temperature is at least more than 1350 ℃); And HV, founding of high strain-point glass are difficult problems; At first, it need be up to the temperature of fusion more than 1600 ℃, and configuration, the tank furnace structure Design of tank furnace refractory materials proposed new requirement; Secondly, this glass belongs to high-grade precision glass, and its purposes has determined to need first-class glass quality, can not have the above glass defect of 0.1mm to exist.For adopting in arsenic oxide arsenoxide, the glass melting furnace of weisspiessglanz as finings, air bubble problem can effectively be solved, still; The compound that contains arsenic and antimony generally all is a toxic substance; Found volatilization and the exhaust gas emission meeting infringement human beings'health in the process, and the arsenic that remains in the glasswork also is an individual difficult problem with the processing of antimony after sheet glass is scrapped, can produces very high processing cost; The U.S. and European Union have limited the use (seeing European Union environmental protection standard ROHS) of this glass; Panel vendor has also abandoned this original sheet glass that contains arsenic and antimony gradually within Chinese territory, so, soon pass by arsenic and antimony as the back epoch of finings; Except the finings of seeking replacement, the optimization design of glass melting furnace is also put in face of the glazier author.
The utility model content:
The objective of the invention is to overcome the existing technical defective of tank furnace, provide a kind of in not adopting arsenic and the material side of antimony, can the two slot type glass melting furnaces of well founding effect be arranged HV, high strain-point glass as finings.
For realizing above-mentioned purpose, glass melting furnace of the present invention is two slot type glass melting furnaces, promptly comprises melting pool and work pool, is divider wall between the two, and divider wall is provided with dog-hole, is communicated with through dog-hole (dark bridge) between melting pool and the work pool.The back headwall of melting pool is provided with charging opening, and breastwork is provided with pure oxygen burning rifle in the both sides of melting pool, and combustion exhaust is discharged from the flue that is located on the melting pool top, and pool wall also is provided with heating electrode at the bottom of the pond of melting pool.
Each pond lower conducting dome respectively forms a heating circuit with adjacent both sides pool wall electrode respectively; Per two heating circuits constitute one group of parallel connection electrode; Each the pond lower conducting dome that is melting pool forms left heating circuit and right heating circuit with adjacent both sides pool wall electrode respectively; Every pair of left heating circuit and right heating circuit constitute one group of parallel connection electrode, and the so parallelly connected electrode of many groups is arranged in the melting pool.The benefit of doing like this is, when the glass in the assurance melting pool of maximum range obtains even heating, has also reduced the requirement to heater voltage; And needn't adopt higher voltage, this means, under the situation that does not reduce working voltage; Can strengthen the width of melting pool; Improve the capacity of melting pool, improve melting rate, also promptly improved production capacity.
Breastwork is provided with pure oxygen burning rifle in the both sides of work pool; Combustion exhaust is discharged from the flue that is located on the work pool top; Also be provided with bubbler and weir at the bottom of the pond of work pool; At the bottom of the upstream extremity of weir and the tract pond spigot discharge is set, pool wall also is provided with overflow weir in the both sides, downstream of work pool, and the downstream end pool wall of work pool is provided with the venturi that is connected with subsequent processing.
The gas that bubbler blasts is a kind of in oxygen, air, the rare gas or their combination, some preferred embodiment in, preferred purity oxygen; The more preferably gas mixture of oxygen and helium, its suitable ratio is 4:1, the gas that bubbling blasts not only can play stirring action; Improve the homogeneity of glass, a prior aspect is that oxygen not only can be participated in the clarification of glass metal; Can also be caught by the polyvalent metal oxides finings, in follow-up clarifying process, obtain effective oxygen evolution, thoroughly eliminate visible bubble in bubble; And helium has excellent diffusibility in glass, can quicken the discharge of bubble in the glass metal.Bubbler can adopt the mode of continuous bubbling or pulsed bubbling, and in order to bring into play the effect of bubbling, bubbler can upwards be arranged side by side 2~10 with the glass metal vertical current in the edge, and the viscosity of glass metal is less than 1000 pools in the work pool.
The purpose that weir is set at work pool is that it not only can improve the convection current of glass metal, can also a preferred effect be arranged to the glass flow, and the glass metal that weir is flow through in assurance is a fine.Spigot discharge can carry out regular discharging to the dirty glass at the bottom of the pond (like rich zirconium, rich lead glass) at the bottom of the pond before and after the weir, for volatile high-boron-silicon glass, can carry out flash to top layer persilicic glass through overflow weir, avoids flowing into subsequent processing.
Dog-hole is followed melting pool and work pool as dark bridging, and the bottom of dog-hole also is provided with spigot discharge, and this spigot discharge does not use during ordinary production, launches during as cold repair.Some preferred embodiment in; At the bottom of the upstream extremity pond at the bottom of the dog-hole pond pair of electrodes is set; Can realize heating to the dog-hole temperature of glass liquid; A ground-electrode is set between this counter electrode and dog-hole, avoids flowing into the glass metal bubble new of work pool owing to potential difference produces from dog-hole.
The part that melting pool, work pool contact with glass metal, dog-hole, weir all adopt the high zirconia block of electric smelting; Some preferred embodiment in; Dog-hole brick, weir all adopt the form of bag refractory metal, and the erosion of resisting the high temperature and high speed glass metal improves the glass metal quality.Refractory metal comprises platinum, such as platinum rhodium.
The present invention is rational in infrastructure, can solve the clarification and homogenization problem of high melting glass, is particularly useful for founding of high aluminosilicate glass, high-boron-silicon glass.
Description of drawings:
Fig. 1 is the diagrammatic cross-section of the part-structure of a kind of embodiment of glass melting furnace of the present invention.
Fig. 2 is the flat cutting synoptic diagram of the glass melting furnace of this embodiment.
Fig. 3 is the vertical profile synoptic diagram of the glass melting furnace of this embodiment.
Nomenclature: 1, glass melting furnace; 2, melting pool; 3, work pool; 4, dog-hole; 5, pond lower conducting dome; 6, pool wall electrode; 7, bubbler; 8, weir; 9, spigot discharge; 10, overflow weir; 11, melting pool pool wall; 12, at the bottom of the melting pool pond; 13, work pool pool wall; 14, at the bottom of the work pool pond; 15, melting pool burner; 16, work pool burner; 17, charging opening; 18, venturi; 19, melting pool breastwork; 20, work pool breastwork; 21, wall behind the melting pool; 22, top, melting pool pond flue outlet; 23, dog-hole cooling hole; 24, dog-hole spigot discharge.
Embodiment:
Referring to Fig. 1~Fig. 3, this is a pure oxygen electricity fusing-aid two slot type glass melting furnaces 1, is provided with symmetrical 5 pairs of youngster's pure oxygen burners 15 at the breastwork 19 of melting pool 2; The bottom of wall 21 is provided with 3 charging openings 17 behind melting pool; The position that leans nearly arch pin at the melting pool arch is provided with a flue outlet 22, is provided with symmetrical 3 pairs of youngster's pool wall electrodes 6 at the pool wall 11 of melting pool, and 12 position of center line is provided with and corresponding 3 the pond lower conducting domes 5 of pool wall electrode at the bottom of the melting pool pond; Pond lower conducting dome 5 constitutes a loop with corresponding left and right sides pool wall electrode 6 respectively; The form of parallel connection is adopted in two loops that constitute, and forms 3 groups of parallel connection electrodes like this, and these 3 groups parallel connection electrodes can adopt identical power voltage supply (X-former); Also can adopt the different voltages with different power supply; When adopting identical power voltage supply, each electric current of organizing between the electrode reduces with the increase of glass metal resistance, reducing and increase with glass metal resistance; And the height of the size of glass metal resistance and temperature of glass liquid is inversely proportional to, according to horse-power formula P=UI=U
2/ R, so, temperature of glass liquid is high more, and electrical heating power is also high more, in the operation of reality, can adopt the constant form of given total current, utilizes fine setting to burn the combustion gas ratio of rifle, realizes the synchronous follow-up that electric current and heat energy distribute; When adopting the different voltages with different power supply, can respectively organize the voltage between the electrode, realize the adjustment of energy distribution, and needn't regulate the combustion gas ratio of burning rifle this moment according to the needs independent control of technology.The material of electrode can be with the kind of glass different molybdenum electrode, platinum electrode or the tin oxide electrodes selected for use with composition, the voltage that electrode is suitable for is different according to concrete glass ingredient, melting pool size and control theory, can between 200~700V, select.
This pure oxygen electricity fusing-aid glass melting furnace also comprises a work pool 3; The downstream end pool wall 13 of work 3 is provided with the venturi 18 that is connected with subsequent processing; Breastwork 20 is provided with symmetrical 5 pairs of youngster's pure oxygen burners 16 in the both sides of work pool 3; Combustion exhaust is discharged (not shown) from the flue outlet that is located on the work pool top; 14 also are provided with 7 bubblers 7 and weir 8 at the bottom of the pond of work pool, and a spigot discharge 9 is set respectively at the bottom of the upstream extremity of weir 8 and the downstream end pond, and pool wall 13 is gone back left-right symmetric an overflow weir 10 respectively is set in the both sides, downstream of work pool 3.
The gas that bubbler 7 blasts is a kind of in oxygen, air, the rare gas or their combination, preferred oxygen, the more preferably gas mixture of oxygen and helium; Its suitable ratio is 4:1, and the gas that bubbling blasts not only can play stirring action, improves the homogeneity of glass; A prior aspect is that oxygen not only can be participated in the clarification of glass metal, can also be caught by the polyvalent metal oxides finings; In follow-up clarifying process, obtain effective oxygen evolution; Thoroughly eliminate visible bubble in bubble, and helium has excellent diffusibility in glass, can quicken the discharge of bubble in the glass metal.Bubbler can adopt the mode of continuous bubbling or pulsed bubbling, and in order to bring into play the effect of bubbling, the viscosity of glass metal is less than 1000 pools in the work pool.
The purpose that weir 8 is set at work pool is that it not only can improve the convection current of glass metal, can also a preferred effect be arranged to the glass flow, and the glass metal that guarantees to flow through weir is a fine, its highly be position liquid dark 2/3~4/5.Spigot discharge can carry out regular discharging to the dirty glass at the bottom of the pond at the bottom of the pond before and after the weir, for volatile high-boron-silicon glass, can carry out flash to top layer persilicic glass through overflow weir, avoids flowing into subsequent processing.
Melting pool 2 is connected through dog-hole 4 with work pool 3, and dog-hole is provided with cooling hole 23, and cooling hole 23 can adopt water cooling tube cooling, also can adopt air-cooledly, also can adopt the atomizing air cooling, perhaps adopts and mixes the type of cooling.Spigot discharge 24 also is set at the bottom of the pond of dog-hole, does not launch during this spigot discharge ordinary production, only when the blowing out cold repair, open, with the glass at the bottom of the thorough removing melting pool.
The depth of metal of work pool 3 is shallower than the depth of metal 150~500mm of melting pool 2, preferred 200~400mm, more preferably 250~350mm.
The part that melting pool, work pool contact with glass metal is selected the high zirconia block of electric smelting for use; Weir, dog-hole are selected the form of high zirconia block of electric smelting or the high zirconia block outsourcing of electric smelting refractory metal for use; Burner and flue are selected agglomerated material for use, and such as sintering AZS, alundum brick, the fused corundom brick is selected at other position for use.
Refractory metal comprises platinum, such as platinum rhodium.
Claims (10)
1. slot type glass melting furnace, it comprises melting pool and work pool, is divider wall between the two; Divider wall is provided with dog-hole, is communicated with through dog-hole (dark bridge) between melting pool and the work pool, and the back headwall of melting pool is provided with charging opening; Breastwork is provided with pure oxygen burning rifle in the both sides of melting pool; Combustion exhaust is discharged from the flue that is located on the melting pool top, and at the bottom of the pond of melting pool, pool wall also is provided with heating electrode, the downstream end pool wall of work pool is provided with the venturi that is connected with subsequent processing; Breastwork is provided with pure oxygen burning rifle in the both sides of work pool; Combustion exhaust is discharged from the flue that is located on the work pool top, and it is characterized in that: each pond lower conducting dome of melting pool forms left heating circuit and right heating circuit with adjacent both sides pool wall electrode respectively, and every pair of left heating circuit and right heating circuit constitute one group of parallel connection electrode.
2. a kind of two slot type glass melting furnaces as claimed in claim 1 is characterized in that: also be provided with bubbler and weir at the bottom of the pond of work pool, at the bottom of the upstream extremity of weir and the downstream end pond spigot discharge be set, pool wall also is provided with overflow weir in the both sides, downstream of work pool.
3. a kind of two slot type glass melting furnaces as claimed in claim 2, it is characterized in that: the bottom of dog-hole also is provided with spigot discharge.
4. a kind of two slot type glass melting furnaces as claimed in claim 2 is characterized in that: the gas that bubbler blasts is a kind of in oxygen, air, the rare gas or their combination.
5. a kind of two slot type glass melting furnaces as claimed in claim 1, it is characterized in that: the level of work pool is less than the level of melting pool; The viscosity of glass metal is less than 1000 pools in the work pool.
6. a kind of two slot type glass melting furnaces as claimed in claim 1 is characterized in that: melting pool all adopts the high zirconia block of electric smelting with the part that work pool contacts with glass metal.
7. according to claim 1 or claim 2 a kind of two slot type glass melting furnaces, it is characterized in that: dog-hole adopts the structure of high zirconia block of electric smelting or the high zirconia block outsourcing of electric smelting refractory metal; Weir adopts the structure of high zirconia block of electric smelting or the high zirconia block outsourcing of electric smelting refractory metal.
8. a kind of two slot type glass melting furnaces as claimed in claim 7, it is characterized in that: said refractory metal comprises platinum.
9. a kind of two slot type glass melting furnaces as claimed in claim 1 is characterized in that: melting pool pond lower conducting dome and pool wall electrode are selected from a kind of in tin oxide electrode, platinum electrode or the molybdenum electrode.
10. a kind of two slot type glass melting furnaces as claimed in claim 2 is characterized in that: at the bottom of the upstream extremity pond at the bottom of the dog-hole pond pair of electrodes is set, and a ground-electrode is set between this counter electrode and dog-hole.
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CN2011103390710A CN102503078A (en) | 2011-11-01 | 2011-11-01 | Two-slot type glass tank |
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CN2011103390710A CN102503078A (en) | 2011-11-01 | 2011-11-01 | Two-slot type glass tank |
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103420561A (en) * | 2013-08-15 | 2013-12-04 | 湖北戈碧迦光电科技股份有限公司 | Optical glass kiln melting tank |
CN104926080A (en) * | 2014-03-17 | 2015-09-23 | 郑弘� | Intermittent glass electric melting furnace |
CN105152520A (en) * | 2015-10-14 | 2015-12-16 | 湖北新华光信息材料有限公司 | Efficient optical glass melting tank |
CN106219943A (en) * | 2016-08-03 | 2016-12-14 | 合肥彩虹新能源有限公司 | A kind of pond bottom structure producing ultra-clear glasses |
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 |
CN107686226A (en) * | 2017-09-14 | 2018-02-13 | 中国建材国际工程集团有限公司 | Melting furnaces for borosilicate glass |
CN111439916A (en) * | 2020-05-25 | 2020-07-24 | 中建材蚌埠玻璃工业设计研究院有限公司 | A heating melting furnace of subsection for electronic display glass production |
CN112030350A (en) * | 2020-08-28 | 2020-12-04 | 山西华康绿色建材有限公司 | Method for producing rock wool by using coal gangue |
CN112441722A (en) * | 2019-08-28 | 2021-03-05 | Agc株式会社 | Glass melting furnace and glass manufacturing method |
CN114538754A (en) * | 2022-04-25 | 2022-05-27 | 武汉荣佳达光电科技有限公司 | Carrier plate glass production system device and method |
CN115304242A (en) * | 2022-08-05 | 2022-11-08 | 安徽鑫民玻璃股份有限公司 | Glass liquid coloring system for molding material channel |
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Cited By (14)
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CN103420561A (en) * | 2013-08-15 | 2013-12-04 | 湖北戈碧迦光电科技股份有限公司 | Optical glass kiln melting tank |
CN103420561B (en) * | 2013-08-15 | 2015-12-09 | 湖北戈碧迦光电科技股份有限公司 | A kind of opticglass furnace pond |
CN104926080A (en) * | 2014-03-17 | 2015-09-23 | 郑弘� | Intermittent glass electric melting furnace |
CN105152520A (en) * | 2015-10-14 | 2015-12-16 | 湖北新华光信息材料有限公司 | Efficient optical glass melting tank |
CN106219943A (en) * | 2016-08-03 | 2016-12-14 | 合肥彩虹新能源有限公司 | A kind of pond bottom structure producing ultra-clear glasses |
CN106219943B (en) * | 2016-08-03 | 2019-04-16 | 彩虹(合肥)光伏有限公司 | A kind of bottom of pond structure producing ultra-clear glasses |
CN107686226A (en) * | 2017-09-14 | 2018-02-13 | 中国建材国际工程集团有限公司 | Melting furnaces for borosilicate glass |
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 |
CN112441722A (en) * | 2019-08-28 | 2021-03-05 | Agc株式会社 | Glass melting furnace and glass manufacturing method |
CN112441722B (en) * | 2019-08-28 | 2024-05-17 | Agc株式会社 | Glass melting furnace and glass manufacturing method |
CN111439916A (en) * | 2020-05-25 | 2020-07-24 | 中建材蚌埠玻璃工业设计研究院有限公司 | A heating melting furnace of subsection for electronic display glass production |
CN112030350A (en) * | 2020-08-28 | 2020-12-04 | 山西华康绿色建材有限公司 | Method for producing rock wool by using coal gangue |
CN114538754A (en) * | 2022-04-25 | 2022-05-27 | 武汉荣佳达光电科技有限公司 | Carrier plate glass production system device and method |
CN115304242A (en) * | 2022-08-05 | 2022-11-08 | 安徽鑫民玻璃股份有限公司 | Glass liquid coloring system for molding material channel |
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Application publication date: 20120620 |