CN103145318A - Glass clarification device and method - Google Patents
Glass clarification device and method Download PDFInfo
- Publication number
- CN103145318A CN103145318A CN2013101102402A CN201310110240A CN103145318A CN 103145318 A CN103145318 A CN 103145318A CN 2013101102402 A CN2013101102402 A CN 2013101102402A CN 201310110240 A CN201310110240 A CN 201310110240A CN 103145318 A CN103145318 A CN 103145318A
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- glass
- clarifying
- clarification
- weir
- metal
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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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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
The invention provides a glass clarification device with a good clarification effect and a method thereof. The glass clarification device comprises an outer insulating layer and an inner fireproof layer. A heating device is arranged below the fireproof layer on the upper part. Molten glass is heated by the heating device on the upper part of the device to a higher clarification temperature for the convenience of bubble breakage, so that bubble can be eliminated. The molten glass is forced to be heated by an electrode immersed in the molten glass to raise the temperature of the molten glass so as to accelerate clarification of glass. The clarification temperature can reach 1500-1600 DEG C. The standing time of molten glass in the device is prolonged by means of reflux effect of a kiln ridge in the device to the molten glass, so as to raise the clarification temperature of the molten glass and prolong the clarification time of the molten glass to clarify the molten glass. The invention can be widely applied to clarifying various glass, and is in particular suitable for clarifying photoelectronic glass.
Description
Technical field
The present invention relates to a kind of clarifying plant and defecation method thereof that melten glass liquid is carried out the bubble clarification.
Background technology
In the Optoelectronic Glasses production process, for obtaining high-quality glass, to carry out clarifying treatment to the bubble in melten glass as glass ware forming is last.Present defecation method is generally based on two kinds of principles: a kind of is that small bubbles are constantly grown up and become air pocket, and because the density of bubble is different from the density of glass metal, bubble will constantly float until the effusion glass metal breaks and disappears; Another kind is the reduction along with temperature of glass liquid, and the solubleness of gas in glass increases, under capillary effect, the volume of bubble will diminish, and gaseous tension increases, and gas molecule is because diffusion is absorbed gradually by glass metal, until gas all dissolves in glass, bubble is eliminated.
Use above-mentioned clarification principle, present defecation method mainly contains: add the clarification that finings accelerates glass metal in frit; Adopt the bubbling technology to accelerate the lift velocity of Bubbles in Glass; Adopt decompression (negative pressure) clarification technique to reduce the pressure of glass metal top air, thereby accelerate the lift velocity etc. of bubble in glass metal.
No matter take which kind of clarification mode, all need glass metal that a suitable clarifying plant is arranged in clarifying process, this is even more important for high-quality electronic glass float process.Most of floatation glass production lines are this device or just functional zone partly are set as settling section at kiln not, be not an independently device, the glass blister clear quality of such floatation glass production line far can not reach the requirement to Optoelectronic Glasses.
Summary of the invention
Technical problem to be solved by this invention is to provide the good glass clarifying device of a kind of clarifying effect.
The present invention also will provide a kind of defecation method of above-mentioned clarifying plant.
The technical scheme that technical solution problem of the present invention adopts is: the glass clarifying device, comprise the flame retardant coating of outer field thermal insulation layer and internal layer, and flame retardant coating is arranged with heating unit on top.
Further, be provided with weir on the flame retardant coating of bottom, weir is divided into proparea and back zone with the glass clarifying device.
Further, in described proparea and back zone, electrode is installed, described electrode is immersed in glass metal.
Further, the position of described weir is at the 1/2-2/3 place of whole device length direction.
Further, described weir from the metal level height at 60-200mm.
Further, described proparea is 1 with the ratio of the volume of back zone: 1-4: 1.
Further, described heating unit is Sweet natural gas full-oxygen combustion burner or air-breathing burner.
Further, one deck refractory masses also is set on the flame retardant coating of bottom.
The glass clarifying method utilizes the heating unit on top and both sides to be immersed in the clarifying temp that electrode in glass metal improves glass metal jointly, and clarifying temp can reach 1500-1600 ℃, forces fining glass liquid.
Further, utilize the weir that arranges on the flame retardant coating of bottom, force the backflow of glass metal to increase the residence time of glass metal in clarifying plant, improve the clarification ability.
The invention has the beneficial effects as follows: the heating unit on use device top improves glass metal to higher clarifying temp, is convenient to bubble and breaks, thereby eliminate bubble; The electrode pair glass metal that utilization is immersed in glass metal is forced heating, realizes the lifting of temperature of glass liquid, and to accelerate the clarification of glass, clarifying temp can reach 1500-1600 ℃; The backflow effect of weir in use device to glass metal extends the residence time of glass metal in device, reaches the purpose that promotes the glass metal clarifying temp and extend the glass metal settling time, realizes the clarification of glass metal.The present invention can be widely used in the clarification of various glass, is specially adapted to the clarification of Optoelectronic Glasses, as: TFT glass, contact panel glass etc.
Description of drawings
Fig. 1 is the schematic diagram of apparatus of the present invention.
Embodiment
As shown in Figure 1, clarifying plant of the present invention is the specific installation on production line, is connected in melting pool and expects between the pond, road.Clarifying plant of the present invention comprises the flame retardant coating 2 of outer field thermal insulation layer 1 and internal layer, and thermal insulation layer 1 adopts lagging material to make, and flame retardant coating 2 adopts refractory materials to make.The present invention is arranged with heating unit 3 at the flame retardant coating 2 on device top, and heating unit 3 can be Sweet natural gas full-oxygen combustion burner or air-breathing burner, and heating unit 3 can improve the temperature of metal level, is convenient to bubble and breaks, thereby eliminate bubble.
The present invention is provided with weir 9 on the flame retardant coating 2 of device bottom, weir 9 can force the backflow of glass metal 4 with the increase residence time of glass metal 4 in clarifying plant, thereby improves the clarification ability.In order to bring into play better the above-mentioned effect of weir 9, the present invention is arranged on the position of weir 9 at the 1/2-2/3 place of whole device length direction (being the flow direction of glass metal), the vertex of weir 9 from the metal level height at 60-200mm.Weir 9 is divided into 2 independent settling sections with clarifying plant of the present invention, that is: proparea 5 and back zone 8.The width of proparea 5 of the present invention and back zone 8 direction of melt flow direction (namely perpendicular to) can be different, and the ratio of the width of proparea 5 and back zone 8 is 1: 1-2: 1, and proparea 5 is 1 with the ratio of the volume of back zone 8: 1-4: 1.Weir 9 directly contacts with glass metal 4, can adopt high zirconia block (model such as AZS41, AZS1195), or zircon corundum brick (model such as AZS33, AZS41) surface adds precious metal material and coats, the preferred Pt of precious metal material.
The present invention also can arrange one deck refractory masses 7 on the flame retardant coating 2 of device bottom, refractory masses 7 directly contacts with glass metal 4, refractory masses 7 can adopt high zirconia block (model such as AZS41, AZS1195), or zircon corundum brick (model such as AZS33, AZS41) surface adds precious metal material and coats, the preferred Pt of precious metal material.
The present invention also is equipped with electrode 6 in proparea 5 and back zone 8, electrode 6 is immersed in glass metal 4, and the present invention utilizes the pressure heating of 6 pairs of glass metals 4 of electrode, realizes the lifting of temperature of glass liquid, and to accelerate the clarification of glass, electrode 6 can be SnO
2, Pt, Mo material electrode.
The defecation method of apparatus of the present invention is: the common glass metal that improves of electrode 6 of use device top heating unit 3 and device both sides is to higher clarifying temp, and clarifying temp can reach 1500-1600 ℃, to reach the purpose of forcing fining glass liquid.
Embodiment: the present invention is applied to the clarification of extraordinary high aluminosilicate glass
Apparatus of the present invention front end is connected in the uptake after melting pool, pond, binder road, rear end, heating unit 3 adopts Sweet natural gas full-oxygen combustion burner, the position of weir 9 is at 2/3 place of whole device length direction, weir 9 is from metal level height 150mm, proparea 5 is 3: 1 with the ratio of the volume of back zone 8, selects with the material of the refractory masses 7 of glass metal contact part the zircon corundum brick that coats with Pt, and electrode 6 is selected the Mo electrodes.
Before not adopting clarifying plant of the present invention, when the clarification of glass was only carried out in expecting the road, clarifying temp was 1330-1400 ℃, and the product bubble quality reaches similar opticglass bubble standard, bubble Φ 〉=0.1mm, and the bubble number is 5-10/m
2Adopt above-mentioned clarifying plant that glass is clarified, clarifying temp is 1500-1560 ℃, bubble 0.1mm 〉=Φ 〉=0.05mm, bubble number≤3/m
2, the glass blister quality obviously promotes.
Claims (10)
1. the glass clarifying device, is characterized in that: comprise the flame retardant coating (2) of outer field thermal insulation layer (1) and internal layer, be arranged with heating unit (3) at top flame retardant coating (2).
2. glass clarifying device as claimed in claim 1, it is characterized in that: be provided with weir (9) on bottom flame retardant coating (2), weir (9) is divided into proparea (5) and back zone (8) with the glass clarifying device.
3. glass clarifying device as claimed in claim 2, it is characterized in that: in described proparea (5) and back zone (8), electrode (6) is installed, described electrode (6) is immersed in glass metal (4).
4. glass clarifying device as claimed in claim 2, it is characterized in that: the position of described weir (9) is at the 1/2-2/3 place of whole device length direction.
5. glass clarifying device as claimed in claim 2 is characterized in that: described weir (9) from the metal level height at 60-200mm.
6. glass clarifying device as claimed in claim 2 is characterized in that: described proparea (5) are 1 with the ratio of the volume of back zone (8): 1-4: 1.
7. glass clarifying device as claimed in claim 1, it is characterized in that: described heating unit (3) is Sweet natural gas full-oxygen combustion burner or air-breathing burner.
8. glass clarifying device as claimed in claim 1, is characterized in that: one deck refractory masses (7) also is set on bottom flame retardant coating (2).
9. glass clarifying method, it is characterized in that: utilize the heating unit (3) on top and both sides to be immersed in the clarifying temp that electrode (6) in glass metal (4) improves glass metal jointly, clarifying temp can reach 1500-1600 ℃, forces fining glass liquid.
10. glass clarifying method as claimed in claim 9, it is characterized in that: the upper weir (9) that arranges of flame retardant coating (2) that utilizes the bottom, force the backflow of glass metal (4) to increase the residence time of glass metal (4) in clarifying plant, improve the clarification ability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101102402A CN103145318A (en) | 2013-04-01 | 2013-04-01 | Glass clarification device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101102402A CN103145318A (en) | 2013-04-01 | 2013-04-01 | Glass clarification device and method |
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| Publication Number | Publication Date |
|---|---|
| CN103145318A true CN103145318A (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013101102402A Pending CN103145318A (en) | 2013-04-01 | 2013-04-01 | Glass clarification device and method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109721222A (en) * | 2019-02-19 | 2019-05-07 | 东旭科技集团有限公司 | The control method of glass furnace and glass furnace |
| CN110451774A (en) * | 2019-09-24 | 2019-11-15 | 成都光明光电股份有限公司 | The clarifier and its method of special glass conveyer system |
| CN111875235A (en) * | 2020-08-19 | 2020-11-03 | 成都光明光电股份有限公司 | Optical glass cooling device and cooling method thereof |
| CN116947298A (en) * | 2023-08-18 | 2023-10-27 | 本溪玉晶玻璃有限公司 | Ultra-large tonnage one-kiln two-line glass production line |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300720A (en) * | 2001-01-17 | 2001-06-27 | 山东三力工业集团有限公司 | Unit kiln for smelting neutral glass |
-
2013
- 2013-04-01 CN CN2013101102402A patent/CN103145318A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300720A (en) * | 2001-01-17 | 2001-06-27 | 山东三力工业集团有限公司 | Unit kiln for smelting neutral glass |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109721222A (en) * | 2019-02-19 | 2019-05-07 | 东旭科技集团有限公司 | The control method of glass furnace and glass furnace |
| CN109721222B (en) * | 2019-02-19 | 2022-03-04 | 东旭光电科技股份有限公司 | Glass kiln and control method thereof |
| CN110451774A (en) * | 2019-09-24 | 2019-11-15 | 成都光明光电股份有限公司 | The clarifier and its method of special glass conveyer system |
| CN111875235A (en) * | 2020-08-19 | 2020-11-03 | 成都光明光电股份有限公司 | Optical glass cooling device and cooling method thereof |
| CN116947298A (en) * | 2023-08-18 | 2023-10-27 | 本溪玉晶玻璃有限公司 | Ultra-large tonnage one-kiln two-line glass production line |
| CN116947298B (en) * | 2023-08-18 | 2024-02-27 | 本溪玉晶玻璃有限公司 | Ultra-large tonnage one-kiln two-line glass production line |
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Application publication date: 20130612 |