CN104909781A - Production method of electrically fused brick for tongue arch of glass kiln - Google Patents
Production method of electrically fused brick for tongue arch of glass kiln Download PDFInfo
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- CN104909781A CN104909781A CN201510370711.2A CN201510370711A CN104909781A CN 104909781 A CN104909781 A CN 104909781A CN 201510370711 A CN201510370711 A CN 201510370711A CN 104909781 A CN104909781 A CN 104909781A
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- oxygen blast
- time
- fusing
- production method
- tongue arch
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Abstract
The invention relates to a production method of an electrically fused brick for a tongue arch of a glass kiln, for effectively solving the problem that the electrically fused brick for a tongue arch of a glass kiln is prone to body cracking and collapse. According to the technical scheme, the electrically fused brick for the tongue arch of the glass kiln is prepared from the following raw materials in percentage by weight: 79-83% of aluminium oxide (Al2O3), 8-9% of silica (SiO2), 0.9-1.1% of sodium oxide (Na2O) and 9-11% of zirconium oxide (ZrO2). The production method comprises the following steps: mixing all the above components and stirring uniformly; fusing for 80-90min at a fusing temperature of 2000-2200 DEG C to obtain casting liquid; in the fusing process, blowing oxygen twice: blowing oxygen for 5min for the first time after fusing for 60min and 13-23min after the first oxygen blowing, blowing oxygen for 2min for the second time, wherein the oxygen blowing flow is 25m<3>/h each time; then, performing casting moulding by a mould; and finally cooling for 60-72h at 18-25 DEG C. The production method disclosed by the invention is low in cost and good in product property, has the beneficial effects of reducing the possibility of cracking of the electrically fused brick for the tongue arch of the glass kiln and effectively controlling the problem that the glass kiln stops operating due to cracking and collapse of the tongue arch of the glass kiln, and is convenient to use and good in effect.
Description
Technical field
The present invention relates to refractory materials, particularly a kind of fused cast refractories production method for glass furnace tongue arch.
Background technology
Glass furnace tongue arch is the connecting portion of glass furnace furnace hearth and regenerator, in Improving Glass Manufacturing Processes, the fluctuation of this spot temperature greatly, brick body easily bursts, caves in, its reason burst is that the crystalline phase conversion occurred in zirconium white composition certain temperature range caused with volumetric expansion, how could solve that brick body easily bursts, the problem of caving in is the problem that those skilled in the art are concerned about.
Summary of the invention
For above-mentioned situation, for overcoming the defect of prior art, the object of the present invention is just to provide a kind of fused cast refractories production method for glass furnace tongue arch, the problem that the fused cast refractories brick body that effectively can solve glass furnace tongue arch easily bursts, caves in.
The technical scheme that the present invention solves is that a kind of fused cast refractories production method for glass furnace tongue arch is by the raw material of weight percent meter: aluminium sesquioxide (Al
2o
3) 79-83%, silicon-dioxide (SiO
2) 8-9%, sodium oxide (Na
2o) 0.9-1.1% and zirconium white (ZrO
2) 9-11% makes, wherein, first above-mentioned each component mixture stirred together, then be fused into casting liquid, temperature of fusion is 2000-2200 DEG C, fusing time 80-90min, oxygen blast twice in melting process, first time is oxygen blast 5min after fusing 60min, then melts 13-23min, carry out second time oxygen blast 2min, each oxygen blast flow is 25m
3/ h, then uses die casting shaping, at 18-25 DEG C, and cooling 60-72 hour.
Production method cost of the present invention is low, and product use properties is good, the combined symptoms that the fused cast refractories reducing tongue arch bursts, effectively controlling glass furnace because of tongue arch bursts, to cave in and the stopping kiln that causes runs, easy to use, effective, there is good Social and economic benef@.
Embodiment
Below in conjunction with embodiment, the specific embodiment of the present invention is described in further detail.
embodiment 1
This is used for the fused cast refractories production method of glass furnace tongue arch, is by the raw material of weight percent meter: aluminium sesquioxide (Al
2o
3) 79.1%, silicon-dioxide (SiO
2) 9%, sodium oxide (Na
2o) 0.9% and zirconium white (ZrO
2) 11% to make, wherein, first above-mentioned each component mixture stirred together, then be fused into casting liquid, temperature of fusion is 2000 DEG C, fusing time 90min, oxygen blast twice in melting process, first time is oxygen blast 5min after fusing 60min, then melts 13min, carry out second time oxygen blast 2min, each oxygen blast flow is 25m
3/ h, then uses die casting shaping, at 18-25 DEG C, cools 72 hours.
embodiment 2
This is used for the fused cast refractories production method of glass furnace tongue arch, is by the raw material of weight percent meter: aluminium sesquioxide (Al
2o
3) 80.5%, silicon-dioxide (SiO
2) 8.5%, sodium oxide (Na
2o) 1% and zirconium white (ZrO
2) 10% to make, wherein, first above-mentioned each component mixture stirred together, then be fused into casting liquid, temperature of fusion is 2100 DEG C, fusing time 85min, oxygen blast twice in melting process, first time is oxygen blast 5min after fusing 60min, then melts 18min, carry out second time oxygen blast 2min, each oxygen blast flow is 25m
3/ h, then uses die casting shaping, at 18-25 DEG C, cools 66 hours.
embodiment 3
This is used for the fused cast refractories production method of glass furnace tongue arch, is by the raw material of weight percent meter: aluminium sesquioxide (Al
2o
3) 81.9%, silicon-dioxide (SiO
2) 8%, sodium oxide (Na
2o) 1.1% and zirconium white (ZrO
2) 9% to make, wherein, first above-mentioned each component mixture stirred together, then be fused into casting liquid, temperature of fusion is 2200 DEG C, fusing time 90min, oxygen blast twice in melting process, first time is oxygen blast 5min after fusing 60min, then melts 23min, carry out second time oxygen blast 2min, each oxygen blast flow is 25m
3/ h, then uses die casting shaping, at 18-25 DEG C, cools 72 hours.
Can clearly be found out by above-mentioned situation, zirconic content is reduced in raw material of the present invention, reduce the coefficient of expansion, thus solution brick body bursts problem naturally, but the reduction of zirconium content can affect the corrosion-resistant property of product, therefore to reduce the amount of sodium oxide and the content of silicon-dioxide, reach the object of low glassy phase.Low glassy phase can improve glassy phase Precipitation Temperature, not only keeps corrosion-resistant property, also can alleviate and pollute glasswork, select refractory materials to glass industry, and this product is essential optimal selection.Compared with prior art, the present invention has the following advantages:
1, cost of the present invention is low, about 4000 yuan per ton of aluminium sesquioxide price in raw material, zircon sand (in zircon sand zirconium content about 66%, silicone content about 33%) about 10000 yuan per ton of price, conventional fusion casting azs goods reach 33%, therefore greatly reduce production cost, and result of use is better;
2, because zirconic characteristic is along with temperature variation, the expansion change 1100 DEG C-1200 DEG C time has reverse property, and other material is in expansion, and zirconium white composition is in contraction, and reduction zirconium white composition namely effectively reduces the combined symptoms that goods burst; Control glass furnace to burst because of tongue arch, to cave in and the stopping kiln that causes runs, avoid the kiln program of repairing caused therefore, laid firm basis for glass furnace creates larger benefit, have good Social and economic benef@.
Claims (4)
1. for a fused cast refractories production method for glass furnace tongue arch, it is characterized in that, is by the raw material of weight percent meter: aluminium sesquioxide (Al
2o
3) 79-83%, silicon-dioxide (SiO
2) 8-9%, sodium oxide (Na
2o) 0.9-1.1% and zirconium white (ZrO
2) 9-11% makes, wherein, first above-mentioned each component mixture stirred together, then be fused into casting liquid, temperature of fusion is 2000-2200 DEG C, fusing time 80-90min, oxygen blast twice in melting process, first time is oxygen blast 5min after fusing 60min, then melts 13-23min, carry out second time oxygen blast 2min, each oxygen blast flow is 25m
3/ h, then uses die casting shaping, at 18-25 DEG C, and cooling 60-72 hour.
2. the fused cast refractories production method for glass furnace tongue arch according to claim 1, is characterized in that, is by the raw material of weight percent meter: aluminium sesquioxide (Al
2o
3) 79.1%, silicon-dioxide (SiO
2) 9%, sodium oxide (Na
2o) 0.9% and zirconium white (ZrO
2) 11% to make, wherein, first above-mentioned each component mixture stirred together, then be fused into casting liquid, temperature of fusion is 2000 DEG C, fusing time 90min, oxygen blast twice in melting process, first time is oxygen blast 5min after fusing 60min, then melts 13min, carry out second time oxygen blast 2min, each oxygen blast flow is 25m
3/ h, then uses die casting shaping, at 18-25 DEG C, cools 72 hours.
3. the fused cast refractories production method for glass furnace tongue arch according to claim 1, is characterized in that, is by the raw material of weight percent meter: aluminium sesquioxide (Al
2o
3) 80.5%, silicon-dioxide (SiO
2) 8.5%, sodium oxide (Na
2o) 1% and zirconium white (ZrO
2) 10% to make, wherein, first above-mentioned each component mixture stirred together, then be fused into casting liquid, temperature of fusion is 2100 DEG C, fusing time 85min, oxygen blast twice in melting process, first time is oxygen blast 5min after fusing 60min, then melts 18min, carry out second time oxygen blast 2min, each oxygen blast flow is 25m
3/ h, then uses die casting shaping, at 18-25 DEG C, cools 66 hours.
4. the fused cast refractories production method for glass furnace tongue arch according to claim 1, is characterized in that, is by the raw material of weight percent meter: aluminium sesquioxide (Al
2o
3) 81.9%, silicon-dioxide (SiO
2) 8%, sodium oxide (Na
2o) 1.1% and zirconium white (ZrO
2) 9% to make, wherein, first above-mentioned each component mixture stirred together, then be fused into casting liquid, temperature of fusion is 2200 DEG C, fusing time 90min, oxygen blast twice in melting process, first time is oxygen blast 5min after fusing 60min, then melts 23min, carry out second time oxygen blast 2min, each oxygen blast flow is 25m
3/ h, then uses die casting shaping, at 18-25 DEG C, cools 72 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510370711.2A CN104909781A (en) | 2015-06-30 | 2015-06-30 | Production method of electrically fused brick for tongue arch of glass kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510370711.2A CN104909781A (en) | 2015-06-30 | 2015-06-30 | Production method of electrically fused brick for tongue arch of glass kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104909781A true CN104909781A (en) | 2015-09-16 |
Family
ID=54079291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510370711.2A Pending CN104909781A (en) | 2015-06-30 | 2015-06-30 | Production method of electrically fused brick for tongue arch of glass kiln |
Country Status (1)
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241521A (en) * | 2010-05-13 | 2011-11-16 | 郑州振中电熔锆业有限公司 | High-temperature wear-resistance brick and casting method thereof |
| CN103771890A (en) * | 2014-02-25 | 2014-05-07 | 郑州远东耐火材料有限公司 | Method for producing alumina-zirconia-silica (AZS) fused cast alumina zirconia octagonal drum grid |
| CN104446545A (en) * | 2014-11-25 | 2015-03-25 | 淄博旭硝子刚玉材料有限公司 | Fusing refractory material damper block and preparation method thereof |
-
2015
- 2015-06-30 CN CN201510370711.2A patent/CN104909781A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241521A (en) * | 2010-05-13 | 2011-11-16 | 郑州振中电熔锆业有限公司 | High-temperature wear-resistance brick and casting method thereof |
| CN103771890A (en) * | 2014-02-25 | 2014-05-07 | 郑州远东耐火材料有限公司 | Method for producing alumina-zirconia-silica (AZS) fused cast alumina zirconia octagonal drum grid |
| CN104446545A (en) * | 2014-11-25 | 2015-03-25 | 淄博旭硝子刚玉材料有限公司 | Fusing refractory material damper block and preparation method thereof |
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Application publication date: 20150916 |