CN107601865A - A kind of production method of high temp glass - Google Patents
A kind of production method of high temp glass Download PDFInfo
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- CN107601865A CN107601865A CN201710873094.7A CN201710873094A CN107601865A CN 107601865 A CN107601865 A CN 107601865A CN 201710873094 A CN201710873094 A CN 201710873094A CN 107601865 A CN107601865 A CN 107601865A
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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
Abstract
The invention discloses a kind of production method of high temp glass, comprise the following steps：Dispensing, after the raw material of high temp glass is prepared, put into total oxygen kiln and carry out fusing operation；Fusing, melts in the raw material of high temp glass at 1555 DEG C~1565 DEG C, in 1450 DEG C~1500 DEG C of carry out glass metal clarification；Step 3: shaping, the glass metal after clarification is molded into molten tin bath float glass process；Annealing, makes annealing treatment the glass after above-mentioned shaping into annealing kiln.Advantages of the present invention：The present invention is using the production 2.1mm high temp glass on all-oxygen combustion float line, promote the fast development of domestic thin-film solar cells industry, solve the problems, such as batch infusibility, difficult forming, anneal that undesirable and thickness is poor and flexibility, the yield and quality of glass is greatly improved, is laid a solid foundation for production multi items, more specifications, high added value glass product later.
Description
Technical field
The present invention relates to field of glass production technology, more particularly to a kind of production method of high temp glass.
Background technology
The glass kind of Current Domestic production is mainly that ultra-clear glasses, common building glass, ultra-thin glass, ultrawhite are ultra-thin
Glass etc..At present, for domestic production high temp glass technology also in blank stage, high temp glass is also known as Large strain glass, such a glass
Glass prevents glass from irreversible elastic-plastic deformation occurs, answers alternating temperature by requiring possess higher strain temperature during high temperature plating molybdenum
Degree is required more than 530 DEG C, is used as copper, indium, gallium, the baseplate material of selenium thin-film solar cells group after plating molybdenum.To make up the country
High temp glass production technology blank, promotes the fast development of domestic thin-film solar cells industry, and the applicant devises we
Case.
The content of the invention
The invention aims to solve shortcoming present in prior art, and a kind of production of the high temp glass proposed
Method.
To achieve these goals, present invention employs following technical scheme：
A kind of production method of high temp glass, it is characterised in that comprise the following steps：
Step 1: dispensing, after the raw material of high temp glass is prepared, puts into total oxygen kiln and carries out fusing operation；
Step 2: fusing, melts in the raw material of high temp glass at 1555 DEG C~1565 DEG C, in 1450 DEG C~1500 DEG C of progress
Glass metal is clarified, and glass metal enters cooling end after being homogenized by agitator, temperature of glass liquid control is existed by adjusting dilution air quantity
1158 DEG C~1162 DEG C；
Step 3: shaping, the glass metal after clarification is molded into molten tin bath float glass process, and the forming temperature of glass is 800 DEG C~950 DEG C,
Glass plate is cooled by water coolers in molten tin bath, glass temperature when going out molten tin bath is 590 DEG C~610 DEG C；
Step 4: annealing, makes annealing treatment the glass after above-mentioned shaping into annealing kiln, annealing kiln is divided into A areas, B areas, C
Area, Ret areas and F areas, glass preheat soaking in A areas, and the permanent stress of glass is eliminated in B areas, and residual stress is eliminated in C areas,
Ret areas and F areas carry out annealing heat exchange, and temperature control is at 68 DEG C~72 DEG C after glass goes out annealing kiln.
Preferably, the raw materials by weight portion of the step 1 high temperature glass includes：180~240 parts of sandstone, feldspar powder
20~60 parts, 40~80 parts of dolomite, 20~50 parts of lime stone, 50~70 parts of soda ash, 20~40 parts of saltcake, coal dust 0~1.5
Part, 40~60 parts of cullet；
Preferably, in the dispensing, first except cullet, unexpectedly other raw materials by weight portion are extremely mixed by Belt Conveying
Machine, and add in mixer raw material weight 4%-6% water it is uniformly well mixed after furnace hopper delivered to by belt, then by throwing
Material machine adds the cullet of corresponding number into furnace hopper.
Preferably, in the step 2 melting process include adjustment natural gas load after move, hot(test)-spot temperature be 1550 DEG C-
1570 DEG C, pull amount is 410t/d -430t/d, and the dilution air quantity is 3100~3300m3/h。
Preferably, in the step 3 when float glass process is molded, 8 pairs of automatic edge rollers are set to enter glass metal in molten tin bath
Row pull, its pull speed is 860-880m/h, and the spacing of the automatic edge machine of arbitrary neighborhood two is 1.3-1.7m, each complete
The front side of automatic edge machine and rear side are respectively mounted graphite gear furrow.
Preferably, described 8 pairs automatic edge machines prolong melt flow direction, and their speed is respectively 134 m/h, 162
M/h, 193 m/h, 230 m/h, 265 m/h, 314 m/h, 360 m/h and 452 m/h；Angle is respectively 9 °, 12 °,
12 °, 12 °, 11.5 °, 9 °, 8 ° and 6 °.
Preferably, the glass metal after being clarified in the step 3 is entered in molten tin bath by flow liquid road by adjusting flashboard control
Flow, flow liquid channel temp are 1150 DEG C -1170 DEG C, and the forming temperature of glass is 800 DEG C~950 DEG C.
Preferably, the water coolers include tin liquor water bag and p-type water bag, and tin liquor water bag and p-type water bag are installed in glass
After glass forming area, tin liquor water bag is arranged in tin liquor, and the front side of tin bath outlet is arranged in middle warm area, p-type water bag to put.
Preferably, it is described that side firelock is installed in transition roller table and annealing kiln A areas porch in step 4, in A areas also
Provided with electrical heating, electrical heating aperture is 17% on A areas plate, and electrical heating aperture is 15% under plate.
Preferably, the annealing kiln annealing ceiling temperature is 545 DEG C, and annealing lower limit temperature is 470 DEG C, and the C areas are moved back
Fiery temperature is 358-362 DEG C.
The advantage of the invention is that：The present invention is promoted using 2.1mm high temp glass is produced on all-oxygen combustion float line
Entered the fast development of domestic thin-film solar cells industry, solve batch infusibility, difficult forming, annealing it is undesirable and
Thickness difference and flexibility problem, the yield and quality of glass is greatly improved, for production multi items, more specifications, high added value later
Glass product lays a solid foundation.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
A kind of production method of high temp glass provided by the invention, comprises the following steps：
Step 1: dispensing, the raw material of high temp glass presses following parts by weight dispensing：200 parts of sandstone, 50 parts of feldspar powder, dolomite
60 parts, 40 parts of lime stone, 60 parts of soda ash, 1 part of 30 parts of saltcake and coal dust, above-mentioned dispensing by Belt Conveying to mixer, while to
The water that raw material weight 5% is added in mixer is uniformly well mixed, and is then delivering to furnace hopper by belt, then by batch charger
50 parts of cullet are added into furnace hopper, fusing operation is carried out in total oxygen kiln.
Step 2: fusing, melts, this programme is preferably 1560 in the raw material of high temp glass at 1555 DEG C~1565 DEG C
DEG C, in 1450 DEG C~1500 DEG C of carry out glass metal clarification, glass metal clarifying temp this programme is preferably 1480 DEG C, by agitator
Glass metal enters cooling end after homogenizing, makes temperature of glass liquid control at 1160 DEG C by adjusting dilution air quantity.
Moved after melting process includes adjustment natural gas load, hot(test)-spot temperature is that 1560 DEG C of pull amounts are 420t/d, described
Dilution air quantity is 3200m3/h。
Step 3: shaping, the glass metal after clarification is molded into molten tin bath float glass process, and the forming temperature of glass is 800 DEG C~950
DEG C, glass plate is cooled by water coolers in molten tin bath, glass temperature when going out molten tin bath is 590 DEG C~610 DEG C.
The water coolers include tin liquor water bag and p-type water bag, and tin liquor water bag and p-type water bag are installed in glass shaping area
After domain, tin liquor water bag is arranged in tin liquor, and the front side of tin bath outlet, water coolers are arranged in middle warm area, p-type water bag to put
On the one hand cooling effect is played, on the other hand strengthens tin liquor transverse convection, reduces influence of the tin liquor transverse temperature difference to glass plate.Subtract
The tin liquor longitudinal direction convection current of small forming area, strengthen tin liquor transverse convection, reduce the transverse temperature difference of tin liquor, prevent glass plate from putting phenomenon
Generation, because putting temperature height among forming area transverse direction upper glass plates, laterally there is transverse temperature difference in glass plate, into annealing kiln
In cause permanent stress eliminate it is uneven, so as to produce bending glass sheet phenomenon, flexibility about in 3mm or so, p-type water bag be plus
Amount of cooling water among big glass plate, and tin liquor water bag are used together, and can effectively control bending glass sheet degree to be less than 0.8mm,
Thickness difference control is within 0.05mm.
When float glass process is molded, 8 pairs of automatic edge rollers are set to pull glass metal in molten tin bath, its pull speed is
870m/h, 8 pairs of automatic edge machines prolong melt flow direction, and their speed is respectively 134 m/h, 162 m/h, 193 m/
H, 230 m/h, 265 m/h, 314 m/h, 360 m/h and 452 m/h；Angle is respectively 9 °, 12 °, 12 °, 12 °,
11.5 °, 9 °, 8 ° and 6 °.The spacing of the automatic edge machine of arbitrary neighborhood two is 1.5m, to ensure that glass tape can in forming area
Effectively draw it is thin, be respectively mounted in the front side of each automatic edge roller and rear side graphite gear furrow.To ensure glass tape in forming area
Can effectively it draw thin.
The flow that glass metal after clarification is entered in molten tin bath by flow liquid road by adjusting flashboard control, flow liquid channel temp are
1160 DEG C, the forming temperature of glass is 900 DEG C, on the one hand the setting of flow liquid channel temp prevents glass from being produced because of the increase of calcium content
Raw crystallization, on the other hand ensure that forming temperature.
Step 4: annealing, makes annealing treatment the glass after above-mentioned shaping into annealing kiln, annealing kiln is divided into A areas, B
Area, C areas, Ret areas and F areas, glass preheat soaking in A areas, and the permanent stress of glass is eliminated in B areas, and remaining answer is eliminated in C areas
Power, Ret areas and F areas carry out annealing heat exchange, and temperature control is at 70 DEG C after glass goes out annealing kiln.
Wherein in transition roller table and annealing kiln A areas porch installation side firelock, electrical heating is additionally provided with A areas, in A areas plate
Upper electrical heating aperture is 17%, and electrical heating aperture is 15% under plate.Purpose is to give glass plate local warming, reaches auxiliary adjustment glass
The effect of plate transverse temperature.
The electrically heated distribution of adjustment molten tin bath is to be carried out according to actual measurement tin liquor temperature to electrical heating burden apportionment, in tin
Groove entrance, the low one side of temperature can suitably increase electrical heating load, and electrical heating is molten tin bath in the main characteristic distributions of forming area
Middle height, about 60Kw, both sides low 10Kw than among, waist is puts, i.e. to put, electricity adds for the centre of molten tin bath center line and molten tin bath edge
Heat is lower 20Kw than edge, and it is to make glass medium temperature high that it, which is acted on, is easy to draw thin and poor thickness control, the thickness of glass plate
Difference control is within 0.05mm.
The contrast effect of this programme and measurement glass before electrical heating adjustment is shown in Tables 1 and 2.
Table 1：2.1mm high temp glass measures Thickness ness list before electrical heating adjusts：mm
| To put | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| Thickness | 1.90 | 1.92 | 1.94 | 2.10 | 2.13 | 2.19 | 2.18 | 2.15 | 2.12 | 1.97 | 1.93 | 1.90 |
Table 2：The final measurement Thickness ness list of 2.1mm high temp glass after the adjustment is：mm
| To put | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| Thickness | 2.10 | 2.10 | 2.10 | 2.11 | 2.12 | 2.10 | 2.10 | 2.11 | 2.10 | 2.10 | 2.10 | 2.10 |
The annealing kiln annealing ceiling temperature is 545 DEG C, and annealing lower limit temperature is 470 DEG C, and the annealing temperature in the C areas is 360
DEG C, high annealing can effectively reduce plate cracking phenomenon and bad cutting problem of the glass in annealing kiln.
Claims (9)
1. a kind of production method of high temp glass, it is characterised in that comprise the following steps：
Step 1: dispensing, after the raw material of high temp glass is prepared, puts into total oxygen kiln and carries out fusing operation；
Step 2: fusing, melts in the raw material of high temp glass at 1555 DEG C~1565 DEG C, in 1450 DEG C~1500 DEG C of progress
Glass metal is clarified, and glass metal enters cooling end after being homogenized by agitator, temperature of glass liquid control is existed by adjusting dilution air quantity
1158 DEG C~1162 DEG C；
Step 3: shaping, the glass metal after clarification is molded into molten tin bath float glass process, and the forming temperature of glass is 800 DEG C~950 DEG C,
Glass plate is cooled by water coolers in molten tin bath, glass temperature when going out molten tin bath is 590 DEG C~610 DEG C；
Step 4: annealing, makes annealing treatment the glass after above-mentioned shaping into annealing kiln, annealing kiln is divided into A areas, B areas, C
Area, Ret areas and F areas, glass preheat soaking in A areas, and the permanent stress of glass is eliminated in B areas, and residual stress is eliminated in C areas,
Ret areas and F areas carry out annealing heat exchange, and temperature control is at 68 DEG C~72 DEG C after glass goes out annealing kiln.
A kind of 2. production method of high temp glass according to claim 1, it is characterised in that：The step 1 high temperature glass
The raw materials by weight portion of glass includes：180~240 parts of sandstone, 20~60 parts of feldspar powder, 40~80 parts of dolomite, lime stone 20
~50 parts, 50~70 parts of soda ash, 20~40 parts of saltcake, 0~1.5 part of coal dust, 40~60 parts of cullet；
In the dispensing, first is removed other unexpected raw materials by weight portion of cullet by Belt Conveying to mixer, and
Added in mixer raw material weight 4%-6% water it is uniformly well mixed after furnace hopper delivered to by belt, then from batch charger to
The cullet of corresponding number are added in furnace hopper.
A kind of 3. production method of high temp glass according to claim 1, it is characterised in that：Smelter in the step 2
Skill is moved after including adjustment natural gas load, and hot(test)-spot temperature is 1550 DEG C -1570 DEG C, and pull amount is 410t/d -430t/d, described
Dilution air quantity is 3100~3300m3/h。
A kind of 4. production method of high temp glass according to claim 1, it is characterised in that：In float glass process in the step 3
During shaping, 8 pairs of automatic edge rollers are set to pull glass metal in molten tin bath, its pull speed is 860-880m/h, is appointed
The spacing of two neighboring automatic edge machine of anticipating is 1.3-1.7m, and graphite is respectively mounted in the front side of each automatic edge roller and rear side
Keep off furrow.
A kind of 5. production method of high temp glass according to claim 4, it is characterised in that：8 pairs of automatic edge machines
Prolong melt flow direction, their speed is respectively 134 m/h, 162 m/h, 193 m/h, 230 m/h, 265 m/h
, 314 m/h, 360 m/h and 452 m/h；Angle is respectively 9 °, 12 °, 12 °, 12 °, 11.5 °, 9 °, 8 ° and 6 °.
A kind of 6. production method of high temp glass according to claim 1, it is characterised in that：After being clarified in the step 3
Glass metal by flow liquid road by adjust flashboard control enter molten tin bath in flow, flow liquid channel temp be 1150 DEG C -1170 DEG C, glass
The forming temperature of glass is 800 DEG C~950 DEG C.
A kind of 7. production method of high temp glass according to claim 1, it is characterised in that：The water coolers include tin
Liquid water bag and p-type water bag, tin liquor water bag and p-type water bag are installed in after glass forming area, and tin liquor water bag is arranged on tin liquor
In, it is arranged on the front side of tin bath outlet in middle warm area, p-type water bag to put.
A kind of 8. production method of high temp glass according to claim 1, it is characterised in that：It is described in step 4 in mistake
Roller tables and annealing kiln A areas porch installation side firelock are crossed, is additionally provided with electrical heating in A areas, electrical heating aperture is on A areas plate
17%, electrical heating aperture is 15% under plate.
A kind of 9. production method of high temp glass according to claim 1, it is characterised in that：The annealing kiln annealing upper limit
Temperature is 545 DEG C, and annealing lower limit temperature is 470 DEG C, and the annealing temperature in the C areas is 358-362 DEG C.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255868A (en) * | 2019-07-31 | 2019-09-20 | 上海耀皮玻璃集团股份有限公司 | A kind of float glass forming arrangement and forming method improving protective gas utilization efficiency |
| CN112340964A (en) * | 2020-12-31 | 2021-02-09 | 河南省中联玻璃有限责任公司 | Efficient float glass production process |
| CN112374752A (en) * | 2020-11-19 | 2021-02-19 | 安徽华光光电材料科技集团有限公司蚌埠光电玻璃分公司 | High-transmittance high-strength high-strain-point glass |
| CN112624598A (en) * | 2021-01-05 | 2021-04-09 | 山东光耀超薄玻璃有限公司 | Production method of ultrathin glass formed by hot air float-over |
| CN112960897A (en) * | 2021-03-01 | 2021-06-15 | 金玛瑙香水（明光）有限公司 | Method for removing stress of thick-bottom glass bottle |
| CN113354279A (en) * | 2021-06-15 | 2021-09-07 | 台玻咸阳玻璃有限公司 | Float production process of low-aluminum glass |
| CN114230151A (en) * | 2021-12-09 | 2022-03-25 | 蚌埠中建材信息显示材料有限公司 | Method for controlling number of stripes in production of ultra-thin float glass |
| CN114702232A (en) * | 2022-04-19 | 2022-07-05 | 中国建筑材料科学研究总院有限公司 | Sheet glass, and method and apparatus for forming the same |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255868A (en) * | 2019-07-31 | 2019-09-20 | 上海耀皮玻璃集团股份有限公司 | A kind of float glass forming arrangement and forming method improving protective gas utilization efficiency |
| CN110255868B (en) * | 2019-07-31 | 2024-04-02 | 上海耀皮玻璃集团股份有限公司 | Float glass forming device and forming method for improving utilization efficiency of shielding gas |
| CN112374752A (en) * | 2020-11-19 | 2021-02-19 | 安徽华光光电材料科技集团有限公司蚌埠光电玻璃分公司 | High-transmittance high-strength high-strain-point glass |
| CN112340964A (en) * | 2020-12-31 | 2021-02-09 | 河南省中联玻璃有限责任公司 | Efficient float glass production process |
| CN112624598A (en) * | 2021-01-05 | 2021-04-09 | 山东光耀超薄玻璃有限公司 | Production method of ultrathin glass formed by hot air float-over |
| CN112960897A (en) * | 2021-03-01 | 2021-06-15 | 金玛瑙香水（明光）有限公司 | Method for removing stress of thick-bottom glass bottle |
| CN113354279A (en) * | 2021-06-15 | 2021-09-07 | 台玻咸阳玻璃有限公司 | Float production process of low-aluminum glass |
| CN114230151A (en) * | 2021-12-09 | 2022-03-25 | 蚌埠中建材信息显示材料有限公司 | Method for controlling number of stripes in production of ultra-thin float glass |
| CN114230151B (en) * | 2021-12-09 | 2023-10-27 | 蚌埠中建材信息显示材料有限公司 | Control method for stripe number in production of ultrathin float glass |
| CN114702232A (en) * | 2022-04-19 | 2022-07-05 | 中国建筑材料科学研究总院有限公司 | Sheet glass, and method and apparatus for forming the same |
| CN114702232B (en) * | 2022-04-19 | 2023-10-13 | 中国建筑材料科学研究总院有限公司 | Sheet glass and molding method and molding device thereof |
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Effective date of registration: 20221129 Address after: 233000 workshop 1, No. 801, Changzheng North Road, xiaobengbu Industrial Park, Huaishang District, Bengbu City, Anhui Province Patentee after: Bengbu Kaisheng Glass Co.,Ltd. Address before: No. 767, Tushan Road, Bengbu, Anhui 233000 Patentee before: ANHUI HUAGUANG PHOTOELECTRICITY MATERIALS TECHNOLOGY GROUP Co.,Ltd. |