CN102875010A - Float glass melting kiln for producing ultrathin glass - Google Patents
Float glass melting kiln for producing ultrathin glass Download PDFInfo
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- CN102875010A CN102875010A CN2012104293267A CN201210429326A CN102875010A CN 102875010 A CN102875010 A CN 102875010A CN 2012104293267 A CN2012104293267 A CN 2012104293267A CN 201210429326 A CN201210429326 A CN 201210429326A CN 102875010 A CN102875010 A CN 102875010A
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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
- C03B5/18—Stirring devices; Homogenisation
- C03B5/193—Stirring devices; Homogenisation using gas, e.g. bubblers
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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
- C03B5/18—Stirring devices; Homogenisation
- C03B5/183—Stirring devices; Homogenisation using thermal means, e.g. for creating convection currents
- C03B5/185—Electric means
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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
- C03B5/23—Cooling the molten glass
-
- 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
- C03B5/235—Heating the glass
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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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Glass Melting And Manufacturing (AREA)
Abstract
The invention relates to the technical field of float glass melting equipment, in particular to a float glass melting kiln for producing ultrathin glass. The float glass melting kiln comprises a feeding opening, a kiln pool, a flame space, small furnaces, a regenerative chamber and a flue duct system, and is characterized in that the kiln pool is provided with a melting zone, a clarifying zone, a neck and a cooling part; the flame space is provided with a melting part breast wall, a main crown and the small furnaces; thermal storage checker bricks are arranged in the regenerative chamber; a row of bubbling devices is arranged at the pool bottom in the kiln pool and in the positions of hot spots in a direction perpendicular to the longitudinal center line of the melting kiln; one or two rows of glass metal auxiliary electrical heating devices are arranged in a hot spot area and at the upstream of the bubbling devices in the direction perpendicular to the longitudinal center line of the melting kiln; and one or two rows of glass metal auxiliary electrical heating devices are arranged in a feeding area of the melting kiln in the direction perpendicular to the longitudinal center line of the melting kiln. The float glass melting kiln provided by the invention meets the production requirements of high-strain-point glass, implements the technical requirements and ensures the safety and the reliability in the production process through other technical means, and is economical and practical.
Description
[technical field]
The present invention relates to the fusion apparatus technical field of float glass, specifically a kind of relevant float glass smelting kiln of producing ultra-thin glass.
[background technology]
As everyone knows, the glass of 0.1～1.5mm thickness is called ultra-thin glass, presses the producing and manufacturing technique classification, and horizontal drawing ultra-thin glass, glass tube down-drawing ultra-thin glass, press over system ultra-thin glass, float glass process ultra-thin glass etc. are arranged.According to the difference of chemical ingredients, ultra-thin glass can be divided into and contain alkali ultra-thin glass and alkali-free ultra-thin glass.Contain the alkali ultra-thin glass and refer to the ultra-thin glass that contains alkalimetal oxide in the chemical constitution, i.e. soda-lime-silica glass.Contain the ultra-thin soda-lime-silica glass of alkali, according to the difference of purposes, alkali metal content also can be different.Wherein can be divided into low strain point soda-lime glass, alkali metal content is suitable with common float glass, and its strain point can be used as TN, STN and shows glass substrate at 490～520 ℃; And the low alkali soda-lime glass of high strain-point, its strain point is fit to the high-temperature technology that indicating meter is produced at 570～590 ℃, can be used as STN, PDP and shows glass substrate.Because the strain point of glass is different, usually corresponding glass temperature viscograph also can be different.The theoretical clarifying temp of low strain point soda-lime glass, corresponding temperature when namely viscosity is 10Pas is the same as 1440～1460 ℃ with ordinary plate glass; The theoretical clarifying temp of the low alkali soda-lime glass of high strain-point is then high, at 1500～1530 ℃.Simultaneously, adopt floating process to produce ultra-thin glass, owing to be subject to the restriction of pull speed, when producing the following thickness raw sheet of 1.1mm, the load of melting furnaces needs significantly to reduce, and could satisfy the microwaviness specification of quality of glass.The melting furnaces load is about 50% when producing the 1.1mm heavy sheet glass when producing the 0.33mm heavy sheet glass.
Be the patent of CN 202139161 U such as publication number, this technology discloses a kind of float glass smelting kiln, comprise successively the molding device that the melting end that is communicated with, card neck, operate portions, at least two supply channels and quantity equate with described supply channel, one end of described supply channel all is communicated with described operate portions, the other end is communicated with a molding device respectively, thereby consist of two production lines, saved cost, but this scheme of the prior art can't satisfy the control of diversified demand and the production cost of float glass simultaneously, and the scope of application is little.So also do not have in the market product or method can satisfy simultaneously above-mentioned these many-sided technical needs.
[summary of the invention]
Purpose of the present invention is exactly in order to solve deficiency of the prior art and defective, provide a kind of novel structure, safe and reliable, economical and practical, can be adapted to production different theories clarifying temp and raw sheet thickness range at the float glass smelting kiln of the thick thin float glass of 0.33mm～1.5mm.
For achieving the above object, a kind of relevant float glass smelting kiln of producing ultra-thin glass is provided, comprise dog-house, the kiln pond, flame space, port, regenerator and flue system, it is characterized in that described kiln pond is provided with melting zone 1, refiner 2, card neck 3 and cooling end 4, flame space is provided with melting end breastwork 5, large arch 6, port 7, regenerator inside is provided with the accumulation of heat checker brick, in the kiln pond, be provided with row's bubbling device 8 of arranging with melting furnaces longitudinal cenlerline vertical direction at the bottom of the pond at focus place, the hot spot region is positioned at a row or two row's glass metal auxiliary electric heater units 9 of bubbling device upstream and melting furnaces longitudinal cenlerline vertical direction layout, the row that melting furnaces material charging region position and melting furnaces longitudinal cenlerline vertical direction are arranged or two row's glass metal auxiliary electric heater units 10.
The temperature of fusion that glass metal auxiliary electric heater unit 9 and 10 replenishes glass metal improves the energy that consumes, and the load of auxiliary electric heater unit 9 must reach auxiliary electric heater unit 9,10 more than 70% of sum of load of total load.
Interval S between bubbling device 8 and the auxiliary electric heater unit 9 is 500～700mm.
The flame space height H in described flame pond is than the high 300～500mm of melting furnaces that produces common soda-lime glass.
Large arch material selection refractoriness under load T
0.5Reach more than 1690 ℃, high temperature creep can better be built by laying bricks or stones by material, adopts electric smelting particle mullite material for glass with lower alkali content, produces high alkali glass when simultaneously, adopts siliceous material or α βAl2O3 material.
Refiner breastwork 5 behind the port is provided with burner 11, adjusts the refiner temperature, the burner load for the melting furnaces thermal load about 5% or realize by a pair of port for subsequent use is set.
Be provided with hot air heating system 13 at kiln cooling end both sides breastwork 12, regulate the temperature of glass liquid of cooling end, this system passes into low warm air and reduces temperature when temperature of glass liquid is high, pass into the high warm air rising temperature of heating when temperature of glass liquid is low, the heating load of this system is 5～15% of melting furnaces thermal load.
Its novel structure of the present invention has satisfied the Production requirement of high strain-point glass, and improves the energy that consumes by the temperature of fusion of being replenished glass metal by the glass metal auxiliary electric heater unit, guarantees the safety of structure of melting furnaces flame space.Secondly, the present invention has adopted the designs such as rising flame space height, thereby reduced the impact of temperature of glass liquid on the large arch of melting furnaces, guarantee the safety of the large arch of melting furnaces melting end, and realized the adaptability that significantly reduces of melting furnaces load and the requirements such as mold temperature of glass metal by other a series of technique means, safe and reliable, economical and practical.
[description of drawings]
Fig. 1 is the primary structure synoptic diagram of melting furnaces of the present invention;
Fig. 2 is the vertical view local structure synoptic diagram of Fig. 1 of the present invention;
Fig. 3 is melting furnaces melting part structure synoptic diagram of the present invention;
As shown in the figure, comprise among the figure: melting zone 1, refiner 2, card neck 3, cooling end 4, melting end breastwork 5, large arch 6, port 7, bubbling device 8, auxiliary electric heater unit 9, auxiliary electric heater unit 10, burner 11, cooling end breastwork 12, hot air heating system 13, flame space 14, kiln pond 15;
Specifying Fig. 2 is Figure of abstract of the present invention.
[embodiment]
The invention will be further described below in conjunction with accompanying drawing, and the structure of this device and principle are very clearly concerning this professional people.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
The present invention is a kind of relevant float glass smelting kiln of producing ultra-thin glass, wherein melting furnaces comprise kiln pond, the flame space that contacts with glass metal, the port part that is distributed in the melting furnaces both sides, also comprise the necessary regenerator of horizontal-flame glass melting furnace and flue system, regenerator inside is provided with the accumulation of heat checker brick.
The kiln pond comprises melting zone 1, refiner 2, card neck 3 and cooling end 4.Flame space comprises melting end breastwork 5, large arch 6, port 7, as shown in Figure 1 and Figure 2.
Produce the high strain-point glass glass production for satisfying, what be provided with at the bottom of the pond at focus place in the kiln pond that row's bubbling device 8, the hot spot region arranged with melting furnaces longitudinal cenlerline vertical direction be positioned at that a row that bubbling device upstream and melting furnaces longitudinal cenlerline vertical direction arrange or two row's glass metal auxiliary electric heater units 9, melting furnaces material charging region position and melting furnaces longitudinal cenlerline vertical direction arrange one arranges or two arranges glass metal auxiliary electric heater units 10, as shown in Figure 1 and Figure 2.
When producing high strain-point glass glass, because the energy that the raising of the temperature of fusion of glass metal institute must consume is by glass metal auxiliary electric heater unit 9 and 10 additional, but not extra increase can guarantee the safety of structure of melting furnaces flame space like this by the fuel heat load of port.The load that it should be noted that auxiliary electrical heater 9 must reach total load, i.e. auxiliary electrical heater 9,10 more than 70% of sum of load, otherwise can weaken liquid stream circulation between hot spot region and the dog-house, affect the refining quality of glass metal.Interval S between bubbling device 8 and the auxiliary electric heater unit 9 must be suitable, between 500 ~ 700mm, too the circulation of glass metal liquid stream is upset in conference, affects glass metal fusing, clear quality, the too little glass metal stream that can interfere with each other between the two, as shown in Figure 1 and Figure 2.
Because the theoretical clarifying temp of high strain-point glass liquid is high, the melting end temperature of glass liquid also significantly improves, and for reducing temperature of glass liquid to the impact of the large arch of melting furnaces, guarantees the safety of the large arch 6 of melting furnaces melting end, adopt the design of rising flame space height H, reduce the thermal load of flame space.The flame space height H is than the high 300～500mm of melting furnaces that produces common soda-lime glass.Simultaneously large arch material selection refractoriness under load T
0.5Reach more than 1690 ℃, high temperature creep can better be built by laying bricks or stones by material.Can select electric smelting particle mullite material for glass with lower alkali content, if produce simultaneously high alkali glass, then can not select mullite material, can select siliceous material or α βAl2O3 material.
When producing thickness less than the 1.1mm thickness glass, the melting furnaces load significantly reduces, for guaranteeing the temperature of melting furnaces refiner, satisfy the high temperature clarification row bubble of glass metal, refiner breastwork 5 behind the foot couple port arranges burner 11, adjust the refiner temperature, the burner load is about 5% of melting furnaces thermal load.Also can realize this function by a pair of port for subsequent use is set.
For adapting to the significantly reduction of melting furnaces load, satisfy the mold temperature requirement of glass metal, at kiln cooling end both sides breastwork 12 hot air heating system 13 is set, regulate the temperature of glass liquid of cooling end.This system passes into low warm air and reduces temperature when temperature of glass liquid is high, pass into the high warm air rising temperature of heating when temperature of glass liquid is low.The heating load of this system is 5～15% of melting furnaces thermal load.
100t/d level thin float glass melting furnaces of implementing according to the present invention.This kiln can be produced low strain point sodium calcium ultra-thin glass and the low alkali sodium calcium ultra-thin glass of high strain-point simultaneously, and thickness of glass is 1.3mm～0.33mm.
Melting furnaces are arranged 5 pairs of ports, comprising a pair of port for subsequent use.Arrange row's bubbling device at melting furnaces focus place, arrange auxiliary electric heater unit at hot zone and material charging region, the electrically heated total load is at 1200～1500kW.
Melting furnaces melting end flame space is than the high 300～400mm of common soda-lime glass melting furnaces.
The large arch of melting furnaces melting end adopts refractoriness under load T
0.5Reach 1690 ℃ siliceous refractory [material.
Arrange 2 pairs of hot air heating apparatus at the melting furnaces cooling end, heating load is 10% of melting furnaces thermal load.
Claims (7)
1. relevant float glass smelting kiln of producing ultra-thin glass, comprise dog-house, the kiln pond, flame space, port, regenerator and flue system, it is characterized in that described kiln pond is provided with melting zone (1), refiner (2), card neck (3) and cooling end (4), flame space is provided with melting end breastwork (5), large arch (6), port (7), regenerator inside is provided with the accumulation of heat checker brick, in the kiln pond, be provided with row's bubbling device (8) of arranging with melting furnaces longitudinal cenlerline vertical direction at the bottom of the pond at focus place, the hot spot region is positioned at a row or two row's glass metal auxiliary electric heater units (9) of bubbling device upstream and melting furnaces longitudinal cenlerline vertical direction layout, the row that melting furnaces material charging region position and melting furnaces longitudinal cenlerline vertical direction are arranged or two row's glass metal auxiliary electric heater units (10).
2. as claimed in claim 1 a kind of about producing the float glass smelting kiln of ultra-thin glass, the temperature of fusion that it is characterized in that the additional glass metal in glass metal auxiliary electric heater unit (9) and (10) improves the energy that consumes, and the load of auxiliary electric heater unit (9) must reach auxiliary electric heater unit (9), more than 70% of sum of (10) load of total load.
3. a kind of relevant float glass smelting kiln of producing ultra-thin glass as claimed in claim 1 is characterized in that the interval S between bubbling device (8) and the auxiliary electric heater unit (9) is 500～700mm.
4. a kind of relevant float glass smelting kiln of producing ultra-thin glass as claimed in claim 1 is characterized in that the flame space height H in described flame pond is than the high 300～500mm of melting furnaces that produces common soda-lime glass.
5. a kind of relevant float glass smelting kiln of producing ultra-thin glass as claimed in claim 1 is characterized in that large arch material selection refractoriness under load T
0.5Reach more than 1690 ℃, high temperature creep can better be built by laying bricks or stones by material, adopts electric smelting particle mullite material for glass with lower alkali content, produces high alkali glass when simultaneously, adopts siliceous material or α βAl2O3 material.
6. as claimed in claim 1 a kind of about producing the float glass smelting kiln of ultra-thin glass, it is characterized in that the refiner breastwork (5) behind the port is provided with burner (11), adjust the refiner temperature, the burner load for the melting furnaces thermal load about 5% or realize by a pair of port for subsequent use is set.
7. as claimed in claim 1 a kind of about producing the float glass smelting kiln of ultra-thin glass, it is characterized in that being provided with hot air heating system (13) at kiln cooling end both sides breastworks (12), regulate the temperature of glass liquid of cooling end, this system passes into low warm air and reduces temperature when temperature of glass liquid is high, pass into the high warm air rising temperature of heating when temperature of glass liquid is low, the heating load of this system is 5～15% of melting furnaces thermal load.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012104293267A CN102875010A (en) | 2012-10-31 | 2012-10-31 | Float glass melting kiln for producing ultrathin glass |
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| CN2012104293267A CN102875010A (en) | 2012-10-31 | 2012-10-31 | Float glass melting kiln for producing ultrathin glass |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103819096A (en) * | 2014-01-09 | 2014-05-28 | 株洲醴陵旗滨玻璃有限公司 | Ocean blue colored glass online film coating method and online film coating equipment |
| CN103819088A (en) * | 2014-01-09 | 2014-05-28 | 株洲醴陵旗滨玻璃有限公司 | Gray glass and preparation method thereof as well as equipment for preparing gray glass |
| CN108975655A (en) * | 2018-09-10 | 2018-12-11 | 中国建材国际工程集团有限公司 | A kind of rolled glass melting furnaces suitable for producing coloured glass |
| CN109987825A (en) * | 2019-04-28 | 2019-07-09 | 中国洛阳浮法玻璃集团有限责任公司 | A method of excluding low mirabilite content float glass bubble |
| CN110746096A (en) * | 2019-10-22 | 2020-02-04 | 湖南巨强再生资源科技发展有限公司 | Novel horseshoe flame kiln and application thereof |
| CN112919775A (en) * | 2021-04-25 | 2021-06-08 | 中国建材桐城新能源材料有限公司 | Stepped kiln pool of flat glass transverse flame melting kiln |
| CN113651530A (en) * | 2021-06-30 | 2021-11-16 | 漳州旗滨玻璃有限公司 | Preparation method of anti-seismic and anti-crushing ultrathin electronic glass |
| CN116022999A (en) * | 2022-12-29 | 2023-04-28 | 中国建材国际工程集团有限公司 | Glass melting furnace with good visualization performance |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103819096A (en) * | 2014-01-09 | 2014-05-28 | 株洲醴陵旗滨玻璃有限公司 | Ocean blue colored glass online film coating method and online film coating equipment |
| CN103819088A (en) * | 2014-01-09 | 2014-05-28 | 株洲醴陵旗滨玻璃有限公司 | Gray glass and preparation method thereof as well as equipment for preparing gray glass |
| CN103819096B (en) * | 2014-01-09 | 2016-05-04 | 株洲醴陵旗滨玻璃有限公司 | Ocean blue coloured glass on-line film coating method and on-line coating equipment thereof |
| CN108975655A (en) * | 2018-09-10 | 2018-12-11 | 中国建材国际工程集团有限公司 | A kind of rolled glass melting furnaces suitable for producing coloured glass |
| CN109987825A (en) * | 2019-04-28 | 2019-07-09 | 中国洛阳浮法玻璃集团有限责任公司 | A method of excluding low mirabilite content float glass bubble |
| CN110746096A (en) * | 2019-10-22 | 2020-02-04 | 湖南巨强再生资源科技发展有限公司 | Novel horseshoe flame kiln and application thereof |
| CN112919775A (en) * | 2021-04-25 | 2021-06-08 | 中国建材桐城新能源材料有限公司 | Stepped kiln pool of flat glass transverse flame melting kiln |
| CN112919775B (en) * | 2021-04-25 | 2022-11-01 | 中国建材桐城新能源材料有限公司 | Stepped kiln pool of flat glass transverse flame melting kiln |
| CN113651530A (en) * | 2021-06-30 | 2021-11-16 | 漳州旗滨玻璃有限公司 | Preparation method of anti-seismic and anti-crushing ultrathin electronic glass |
| CN116022999A (en) * | 2022-12-29 | 2023-04-28 | 中国建材国际工程集团有限公司 | Glass melting furnace with good visualization performance |
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Application publication date: 20130116 |