CN101747067B - Glass kiln heat accumulation chamber cone brick - Google Patents

Glass kiln heat accumulation chamber cone brick Download PDF

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Publication number
CN101747067B
CN101747067B CN200910227495A CN200910227495A CN101747067B CN 101747067 B CN101747067 B CN 101747067B CN 200910227495 A CN200910227495 A CN 200910227495A CN 200910227495 A CN200910227495 A CN 200910227495A CN 101747067 B CN101747067 B CN 101747067B
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Prior art keywords
oxygen blast
time
melt
oxide
raw
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CN200910227495A
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CN101747067A (en
Inventor
龙沾卫
赵长顺
李万顺
朱苗林
宁本荣
卢晓伟
龙海涛
苗建泽
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Zhengzhou Yuandong Refractory Co Ltd
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Zhengzhou Yuandong Refractory Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/50Glass production, e.g. reusing waste heat during processing or shaping
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/50Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57Improving the yield, e-g- reduction of reject rates

Abstract

The invention relates to a glass kiln heat accumulation chamber cone brick which can efficiently solve the problems of easy aliquation and flaking, short service life, poor heat stability and insufficient erosion resistance. The glass kiln heat accumulation chamber cone brick comprises the following raw materials in percentage by weight: 16-20 percent of silica, 48-52 percent of aluminium oxide, 29-35 percent of zirconium dioxide, 1.3-2.0 percent of sodium oxide, 0.1-0.4 percent of ferric oxide and 0.1-.03 percent of titanium dioxide, wherein the components are uniformly mixed together and melted to form casting liquid, oxygen blowing is carried out twice in the melting process, first oxygen blowing is carried out for 5 min after melting for 60 min, the casting liquid is melted for 13-23 min after first oxygen blowing, second oxygen blowing is carried out for 2 min, wherein each oxygen blowing flow is 25M3/h, and then the casting liquid is in cast molding by a mold with cooling under the room temperature of 18-25 DEG C for 60-72h. A product has the advantages of favorable heat stability, favorable high temperature erosion resistance, non aliquation or flaking, no phenomenon of flue blockage, high heat conductivity and long service life and is an innovation of the cone brick.

Description

Glass kiln heat accumulation chamber cone brick
One, technical field
The present invention relates to a kind of glass kiln heat accumulation chamber cone brick.
Two, background technology
Cone brick is to build the material that glass kiln heat accumulation chamber must be used, and the glass kiln heat accumulation chamber cone brick that uses at present generally is by aluminium sesquioxide (Al 2O 3) content is that the aluminosillicate refractory sintering of 15-30% forms, because the problem that exists on material component and the sintering method is prone to aliquation, peels off in the use; Life-span is short, poor heat stability, and erosion resistance is not enough; And mostly mould be to process with white fused alumina, high aluminium material or graphite, and cost is high, is difficult to effective popularization and application; Restricted the production and the development of glass kiln heat accumulation chamber cone brick, therefore, its improvement and innovate imperative.
Three, summary of the invention
To above-mentioned situation; For overcoming the prior art defective, the present invention's purpose just provides a kind of glass kiln heat accumulation chamber cone brick, can effectively solve cone brick and be prone to aliquation, peels off; Work-ing life short, poor heat stability and the insufficient problem of erosion resistance; The technical scheme of its solution is to be processed by the raw material of following weight percent meter: silicon-dioxide (or is claimed silicon oxide, SiO 2) 16-20%, aluminium sesquioxide (or claim aluminum oxide, Al 2O 3) 48-52%, ZIRCONIUM DIOXIDE 99.5 (or claim zirconium white, ZrO 2) 29-35%, sodium oxide (Na 2O) 1.3-2.0%, red oxide of iron (Fe 2O 3) 0.1-0.4% and titanium oxide (or claims titanium oxide, TiO 2) 0.1-0.3%, wherein, above-mentioned each component is mixed stirs earlier together; Be fused into casting liquid again, temperature of fusion is 1900-2000 ℃, fusing time 80-90min (minute); Oxygen blast in melting process (oxygenation) twice, the first time is oxygen blast 5min behind fusing 60min, after the oxygen blast for the first time; Melt 13-23min again, carry out oxygen blast second time 2min, each oxygen blast flow is 25M 3/ h (promptly per hour 25 cubic metres, about PM 0.4167M 3/ min), afterwards, use the die casting moulding, under room temperature 18-25 ℃, cooling 60-72h (hour); Said mould is to mix aftershaping by the silica sand 90% of weight meter and water glass (claim water glass, bubble flower alkali again, be liquid) 10%, places 300 ℃ of oven dry to process in 4 hours, and product thermostability of the present invention and high temperature erosion resistance are good; Not aliquation, peel off, do not have stifled flue phenomenon, heat exchange efficiency is high, thermal conductivity is high; Long service life, energy-saving and environmental protection, cost is low, is the innovation on the cone brick.
Four, embodiment
Below in conjunction with particular case, specific embodiments of the invention elaborates.
Embodiment 1: the present invention can be realized by following mode in practical implementation
Cone brick of the present invention is by weight percent meter: silica 1 6%, aluminium sesquioxide 48%, ZIRCONIUM DIOXIDE 99.5 34%, sodium oxide 1.4%, red oxide of iron 0.4% and titanium oxide 0.2% are made raw material; Mix, place the electrofusion stove to melt 60min down, afterwards at 1900 ℃; The 5min of oxygen blast for the first time; Melt 23min again 1900 ℃ of following continuation, carry out oxygen blast second time 2min, twice oxygen blast flow is 25M 3/ h after the fusing of oxygen blast for the second time, casts in the in-mold molding of being processed for raw material by the silica sand 90% and the water glass 10% of weight meter with melt, cools off 60h, finished product cone brick promptly of the present invention down at 18 ℃.
Embodiment 2: the present invention can be realized that also by weight percentage: silica 1 8%, aluminium sesquioxide 50%, ZIRCONIUM DIOXIDE 99.5 30%, sodium oxide 1.5%, red oxide of iron 0.3% and titanium oxide 0.2% are made raw material, mix by following concrete mode; Place the electrofusion stove to melt 60min down at 1950 ℃, afterwards, the 5min of oxygen blast for the first time; After the oxygen blast first time; Under 1950 ℃, continue fusing 18min again, carry out oxygen blast second time 2min, twice oxygen blast flow is 25M 3/ h after the fusing of oxygen blast for the second time, casts in the in-mold molding of being processed for raw material by the silica sand 90% and the water glass 10% of weight meter with melt, cools off 65h, finished product cone brick promptly of the present invention down at 20 ℃.
Embodiment 3
The present invention can be realized that also by weight percentage: silica 1 7%, aluminium sesquioxide 49%, ZIRCONIUM DIOXIDE 99.5 32%, sodium oxide 1.7%, red oxide of iron 0.2% and titanium oxide 0.1% are made raw material, mix by following concrete mode; Place the electrofusion stove to melt 60min down at 1960 ℃, afterwards, the 5min of oxygen blast for the first time; After the oxygen blast for the first time; Under 1960 ℃, continue fusing 13min again, carry out oxygen blast second time 2min, twice oxygen blast flow is 25M 3/ h after the fusing of oxygen blast for the second time, casts in the in-mold molding of being processed for raw material by the silica sand 90% and the water glass 10% of weight meter with melt, cools off 72h, finished product cone brick promptly of the present invention down at 25 ℃.
Embodiment 4
The present invention can be realized that also by weight percentage: silica 1 8.5%, aluminium sesquioxide 50.5%, ZIRCONIUM DIOXIDE 99.5 29%, sodium oxide 1.6%, red oxide of iron 0.1% and titanium oxide 0.3% are made raw material, mix by following concrete mode; Place the electrofusion stove to melt 60min down, afterwards, carry out oxygen blast first time 5min at 2000 ℃; After the oxygen blast for the first time; Under 2000 ℃, continue fusing 13min again, the 2min of oxygen blast for the second time, each oxygen blast flow is 25M 3/ h after the fusing of oxygen blast for the second time, casts in the in-mold molding of being processed for raw material by the silica sand 90% and the water glass 10% of weight meter with melt, cools off 72h, finished product cone brick promptly of the present invention down at 25 ℃.
Product of the present invention is compared with the agglomerated material that existing glass kiln heat accumulation chamber generally uses, and has following outstanding advantage: more good thermostability and high temperature erosion resistance, and the problem that does not have aliquation, peels off, blocks up flue, heat exchange efficiency is high; Thermal conductivity is high, and working life is long, is 2-3 times of common material, can be with more than two kiln phases (10-15); And, good product quality, cost is low, practices thrift die cost more than 10 times; Casting and annealing process heat radiation evenly do not have focal point of stress, brick body flawless, and profile is accurate; Good integral strength, yield rate are more than 99%, and production efficiency can improve more than 1 times, and cost reduces more than 50%; Energy-saving and environmental protection are innovations of glass kiln heat accumulation chamber cone brick, and huge economic and social benefit is arranged.

Claims (4)

1. a glass kiln heat accumulation chamber cone brick is characterized in that, is processed by the raw material of following weight percent meter: silica 1 6-18%, aluminium sesquioxide 48-50%, ZIRCONIUM DIOXIDE 99.5 30-34%, sodium oxide 1.4-1.7%, red oxide of iron 0.2-0.4% and titanium oxide 0.1-0.2%; Wherein, above-mentioned each component is mixed stirs earlier together, is fused into casting liquid again; Temperature of fusion is 1900-2000 ℃, fusing time 80-90min, and oxygen blast is twice in melting process; Oxygen blast 5min behind fusing 60min after the oxygen blast for the first time, melts 13-23min more for the first time; Carry out oxygen blast second time 2min, each oxygen blast flow is 25M 3/ h afterwards, uses the die casting moulding, and under room temperature 18-25 ℃, cooling 60-72h, said mould are by the silica sand 90% and water glass 10% mixing aftershaping of weight meter, place 300 ℃ of oven dry to process in 4 hours.
2. glass kiln heat accumulation chamber cone brick according to claim 1 is characterized in that, by weight percent meter: silica 1 6%, aluminium sesquioxide 48%, ZIRCONIUM DIOXIDE 99.5 34%, sodium oxide 1.4%, red oxide of iron 0.4% and titanium oxide 0.2% are made raw material; Mix, place the electrofusion stove to melt 60min down, afterwards at 1900 ℃; The 5min of oxygen blast for the first time; Melt 23min again 1900 ℃ of following continuation, carry out oxygen blast second time 2min, twice oxygen blast flow is 25M 3/ h after the fusing of oxygen blast for the second time, casts in the in-mold molding of being processed for raw material by the silica sand 90% and the water glass 10% of weight meter with melt, cools off 60h down at 18 ℃ and processes.
3. glass kiln heat accumulation chamber cone brick according to claim 1 is characterized in that, by by weight percentage: silica 1 8%, aluminium sesquioxide 50%, ZIRCONIUM DIOXIDE 99.5 30%, sodium oxide 1.5%, red oxide of iron 0.3% and titanium oxide 0.2% makes raw material; Mix; Place the electrofusion stove to melt 60min down at 1950 ℃, afterwards, the 5min of oxygen blast for the first time; After the oxygen blast first time; Under 1950 ℃, continue fusing 18min again, carry out oxygen blast second time 2min, twice oxygen blast flow is 25M 3/ h after the fusing of oxygen blast for the second time, casts in the in-mold molding of being processed for raw material by the silica sand 90% and the water glass 10% of weight meter with melt, cools off 65h down at 20 ℃ and processes.
4. glass kiln heat accumulation chamber cone brick according to claim 1 is characterized in that, by by weight percentage: silica 1 7%, aluminium sesquioxide 49%, ZIRCONIUM DIOXIDE 99.5 32%, sodium oxide 1.7%, red oxide of iron 0.2% and titanium oxide 0.1% makes raw material; Mix; Place the electrofusion stove to melt 60min down at 1960 ℃, afterwards, the 5min of oxygen blast for the first time; After the oxygen blast for the first time; Under 1960 ℃, continue fusing 13min again, carry out oxygen blast second time 2min, twice oxygen blast flow is 25M 3/ h after the fusing of oxygen blast for the second time, casts in the in-mold molding of being processed for raw material by the silica sand 90% of weight meter and water glass 10% with melt, cools off 72h down at 25 ℃, the finished product cone brick.
CN200910227495A 2009-12-16 2009-12-16 Glass kiln heat accumulation chamber cone brick Active CN101747067B (en)

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102134161B (en) * 2011-04-08 2012-12-12 郑州科瑞耐火材料有限公司 Special firebrick for roaster flame path wall and preparation method thereof
CN103771890B (en) * 2014-02-25 2015-09-02 郑州远东耐火材料有限公司 The production method of the anistree cylinder checker of a kind of AZS casting zirconia corundum
CN104692685B (en) * 2015-02-11 2018-01-23 江苏中正耐火材料有限公司 A kind of 70Z zirconia blocks and its preparation method and the regenerator using zirconia block arrangement
CN106396341A (en) * 2016-08-26 2017-02-15 成都瀚江新材科技股份有限公司 Horseshoe-shaped kiln structure
CN108439976A (en) * 2018-03-06 2018-08-24 李宏伟 A kind of low-density thermal conductive ceramic material and preparation method thereof

Citations (1)

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CN1693275A (en) * 2005-05-16 2005-11-09 侯松发 Process for producing electric smelting zirconium corundum 33#, 36#, 41# products by secondary casting

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Publication number Priority date Publication date Assignee Title
CN1693275A (en) * 2005-05-16 2005-11-09 侯松发 Process for producing electric smelting zirconium corundum 33#, 36#, 41# products by secondary casting

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