CN1319895C - Heat shock resistant refractory brick formed with slurry binding agent and production process thereof - Google Patents
Heat shock resistant refractory brick formed with slurry binding agent and production process thereof Download PDFInfo
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- CN1319895C CN1319895C CNB2005101073195A CN200510107319A CN1319895C CN 1319895 C CN1319895 C CN 1319895C CN B2005101073195 A CNB2005101073195 A CN B2005101073195A CN 200510107319 A CN200510107319 A CN 200510107319A CN 1319895 C CN1319895 C CN 1319895C
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Abstract
The present invention relates to a heat resistant and shock resistant refractory brick formed by binding slurry and a production method of the brick. The present invention can effectively solve the problems of bad shock resistance and short service life of the refractory brick. The present invention has the solved technical scheme that the refractory brick of the present invention is manufactured by that base material is prepared from mullite, sillimanite, high-aluminium powder, andalusite, cordierite powder and white slime, a slurry binding agent of 3 to 15% of the weight of the base material is added, and the base material and the slurry binding agent are sintered after being formed. The present invention has the production method that the slurry binding agent is added according to the prescription requirement of the base material, the base material is uniformly mulled and formed by a forming machine, and the refractory brick is burnt in a sintering furnace at high temperature more than or equal to 1350 DEG C. the product of the present invention has the advantages of favorable performance of heat resistance and shock resistance, effective prevention of brick drop and fragmentation in use, long service life, high productive efficiency, wide popularization prospect and large economical and social benefit, and the maximum economic loss of enterprises, which is caused by shutdown maintenance, can be avoided.
Description
One, technical field
The present invention relates to the heat shock resistant refractory brick and the production method thereof of a kind of formed with slurry binding of iron and steel smelting blast funnace hot blast stove use.
Two, background technology
The development of world economy, the vast market that provides for Iron and Steel Production.Meanwhile, also have higher requirement for Iron and Steel Production.Particularly maximize and the development of hotblast stove longevity technology along with blast furnace, the quality of hotblast stove lining material is more and more important, because hot-blast stove gas burner brick, the pipeline brick, the working conditions at positions such as hot-blast outlet is abominable, frequent (thermal shock phenomenon) colds and heat succeed each other, refractory materials destructiveness to these positions is bigger, the hotblast stove life-span has confidential relation with it, the anti-thermal shock brick that present China refractory materials enterprise is produced, as andalusite brick, the trichroite mullite brick, the anti-peeling high aluminium brick is generally all by water or lignin liquor connecting shaping, again because the problem that its component exists, its thermal shock resistance is poor, the number of times of anti-water-cooled experiment is generally at 20 times, 30 times, 40 times, 50 times, 70 times, seldom have more than 80 times, these refractory brick are owing to reasons such as thermal shock resistance differences, brick in use appears falling easily, cracked phenomenon causes the blowing out overhaul at last, causes great financial loss to enterprise.
Three, summary of the invention
At above-mentioned situation, the present invention's purpose is to provide a kind of heat shock resistant refractory brick and production method thereof by formed with slurry binding, can effectively solve the refractory brick poor seismic behavior, the problem that work-ing life is short, the technical scheme of its solution is, refractory brick of the present invention is by mullite, the sillimanite powder, high-alumina fly, andaluzite, trichroite powder and white clay constitute base-material, sintering is made after adding the mud wedding agent moulding of 3-15% of base-material weight again, its production method is to add the mud wedding agent by the requirement of base-material prescription, even through mixed grind, use the shaper moulding, fire in the sintering oven under 〉=1350 ℃ of high temperature again and form, product thermal shock resistance of the present invention is good, in use effectively prevent brick, cracked, long service life, the production efficiency height is avoided keeping in repair the very big financial loss that causes to enterprise because of blowing out, popularizing application prospect is wide, and economic and social benefit is huge.
Four, embodiment
Below in conjunction with particular case the specific embodiment of the present invention is elaborated.
Provide by the aforementioned techniques scheme, heat shock resistant refractory brick of the present invention is by the weight meter: mullite 35-65%, sillimanite powder 5-10%, high-alumina fly 5-10%, andaluzite 5-15%, trichroite powder 5-15% and white clay 8-15% constitute base-material, and the mud wedding agent that adds base-material gross weight 3-15% is again made; Said mud wedding agent is by weight: the mud that fire-resistant ore powder 10-40%, clay powder 20-40% and water 30-50% constitute (in case of necessity, also can adopt the base-material component to use water as wedding agent separately, but effect will differ from, and is protection scope of the present invention equally);
Said mullite granularity is 0.088-5mm, and the high-alumina fly granularity is 〉=0.088mm, and trichroite powder degree is 〉=0.088mm, and the andaluzite granularity is 0.01-0.2mm, and the clay powder fineness is greater than 180 orders; Said fire-resistant ore powder is high-alumina fly, andaluzite powder etc. in the wedding agent.
Production method of the present invention is, the mud wedding agent is by by weight: andaluzite powder 20-40%, clay powder 20-40% and water 30-50% form, mix by by weight: mullite 35-65%, sillimanite powder 5-10%, high-alumina fly 5-10%, andaluzite 5-15%, in the base-material that trichroite powder 5-15% and white clay 8-15% form, mud wedding agent add-on is the 3-15% of base-material weight, after mixed grind is even, use the shaper moulding, place sintering oven inherence 〉=1350 ℃ high-temperature firing (moulding, sintering all can adopt traditional technology, also can adopt other suitable technologies, be 200510107273.7 refractory brick moulding process as number of patent application).
Embodiment 1
Heat shock resistant refractory brick of the present invention is to be made by base-material and wedding agent, said base-material is by the weight meter: mullite 55%, sillimanite powder 8%, high-alumina fly 7%, andaluzite 10%, trichroite powder 10% and white clay 10% are formed, wedding agent is by by weight: 180 order andaluzite powder 30%, 180 order clay powders 20% and water 50% are formed, and the adding weight of wedding agent in base-material is 10% (be base-material: wedding agent=100: 10 or be written as 10: 1) of base-material weight.
As the 1000kg base-material, wherein mullite 550kg, sillimanite powder 80kg, high-alumina fly 70kg, andaluzite 100kg, trichroite powder 100kg and white clay 100kg and composition, the mud wedding agent is by forming through pillar powder 30kg, clay powder 20kg and water 50kg, and promptly the material be made up of the mud wedding agent of the base-material of 1000kg and 100kg of refractory brick is made.
The production method that realizes embodiment 1 is, at first choose base-material, by weight: mullite 55% (or 550kg), sillimanite powder 8% (or 80kg), high-alumina fly 7% (or 70kg), andaluzite 10% (or 100kg), trichroite powder 10% (or 100kg) and white clay 10% (or 100kg), choose wedding agent again, by weight: andaluzite powder 30% (or 30kg), clay powder 20% (or 20kg) and water 50% (or 50kg) are formed, base-material and wedding agent are inserted in the mixing pan routinely technology carry out mixed grind, place compression moulding in the desired former again, be loaded in the sintering oven, under 1355 ℃ of high temperature, fire (sintering operation can be undertaken by traditional technology).
Embodiment 2
Heat shock resistant refractory brick of the present invention also can be by the weight meter: mullite 50%, sillimanite powder 5%, high-alumina fly 10%, andaluzite 8%, trichroite powder 15% and white clay 12%, the base-material of forming with by the weight meter: andaluzite powder 30%, the wedding agent that clay powder 30% and water 40% are formed is made, the wedding agent add-on is 12% of a base-material weight, base-material as 10000kg is by mullite 5000kg, sillimanite powder 500kg, high-alumina fly 1000kg, andaluzite 800kg, trichroite 1500kg and white clay 1200kg, form, wedding agent is by andaluzite powder 360kg, clay powder 240kg and water 600kg form.
The processing step of realizing embodiment 2 is with embodiment 1, and wherein refractory brick moulding process (method) also can adopt the refractory brick forming method of number of patent application 200510107273.7, no longer repeats.
From the above, refractory brick component of the present invention is fully different with existing antidetonation refractory brick, and wedding agent is not to adopt existing xylogen or simple water, and be in the high temperature more than 〉=1350 ℃, to fire to form, its component is scientific and reasonable, after tested, the refractoriness under load that the present invention makes is compared at 1400 ℃-1450 ℃ heat shock resistant refractory brick with existing refractoriness under load at 1400 ℃-1450 ℃ heat shock resistant refractory brick, 1100 ℃ of water-cooled tests, thermal shock resistance improves more than 30 times, tool is at 10 batches, in every batch optional 100 the refractory brick test, refractory brick thermal shock resistance number of times all reaches more than 110 times, and void content reduces more than 5%, and volume density increases 0.1-0.28g/cm
3The quality of refractory brick is improved greatly, can well be applied to the hotblast stove and the various industrial furnace regenerator of blast furnace, and through on probation, there is not the brick of falling, cracked phenomenon, solved the problem of existing heat shock resistant refractory brick thermal shock performance difference very effectively, as existing andalusite brick, the number of times of the anti-water-cooled experiment of trichroite mullite brick and anti-peeling high aluminium brick generally has only 20-70 time as previously mentioned, be difficult to reach more than 80 times, and heat shock resistant refractory brick of the present invention can reach more than 100-260 time, its thermal shock resistance good, exceed people's expectation fully, and, because refractory brick is difficult for producing brick, cracked, blowing out extensive repair phenomenon is arranged seldom again, for high efficiency production provides good condition, can save maintenance cost more than 90% according to measuring and calculating, the present invention succeeds in developing, solved people thirsts for solving always, but the problem of unsolved all the time refractory brick thermal shock resistance difference, it is applied has huge economy and social value, and makes immeasurable great creative contribution for the production and the development of the production of refractory brick and smelting iron and steel industry.
Claims (5)
1, a kind of heat shock resistant refractory brick of formed with slurry binding, it is characterized in that being, by the weight meter: mullite 35-65%, sillimanite powder 5-10%, high-alumina fly 5-10%, andaluzite 5-15%, trichroite powder 5-15% and white clay 8-15% constitute base-material, make with the mud wedding agent of base-material gross weight 3-15%, said mud wedding agent is by weight: the mud that fire-resistant ore powder 10-40%, clay powder 20-40% and water 30-50% constitute.
2, the heat shock resistant refractory brick of formed with slurry binding according to claim 1, it is characterized in that being, by the weight meter: the base-material that mullite 55%, sillimanite powder 8%, high-alumina fly 7%, andaluzite 10%, trichroite powder 10% and white clay 10% are formed, with by the weight meter: the wedding agent that 180 order andaluzite powder 30%, 180 order clay powders 20% and water 50% are formed constitutes, the adding weight of wedding agent in base-material is 10% of base-material weight.
3, the heat shock resistant refractory brick of formed with slurry binding according to claim 1, it is characterized in that being, by the weight meter: the base-material that mullite 50%, sillimanite powder 5%, high-alumina fly 10%, andaluzite 8%, trichroite powder 15% and white clay 12% are formed with by the weight meter: the wedding agent that andaluzite powder 30%, clay powder 30% and water 40% are formed is made, and the wedding agent add-on is 12% of a base-material weight.
4, the production method of the heat shock resistant refractory brick of formed with slurry binding according to claim 1, it is characterized in that being, the mud wedding agent is by by weight: andaluzite powder 20-40%, clay powder 20-40% and water 30-50% form, mix by by weight: mullite 35-65%, sillimanite powder 5-10%, high-alumina fly 5-10%, andaluzite 5-15%, trichroite powder 5-15% and white clay 8-15%, in the base-material of forming, mud wedding agent add-on is the 3-15% of base-material weight, after mixed grind is even, use the shaper moulding, place sintering oven inherence 〉=1350 ℃ high-temperature firings.
The production method of the heat shock resistant refractory brick of 5 formed with slurry binding according to claim 5, it is characterized in that it being at first to choose base-material, by weight: mullite 55%, sillimanite powder 8%, high-alumina fly 7%, andaluzite 10%, trichroite powder 10% and white clay 10%, choose wedding agent again, by weight: andaluzite powder 30%, clay powder 20% and water 50% are formed, base-material and wedding agent inserted in the mixed grind mill carry out mixed grind, place compression moulding in the former again, be loaded in the sintering oven, under 1455 ℃ of high temperature, fire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101073195A CN1319895C (en) | 2005-12-23 | 2005-12-23 | Heat shock resistant refractory brick formed with slurry binding agent and production process thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005101073195A CN1319895C (en) | 2005-12-23 | 2005-12-23 | Heat shock resistant refractory brick formed with slurry binding agent and production process thereof |
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| CN1792950A CN1792950A (en) | 2006-06-28 |
| CN1319895C true CN1319895C (en) | 2007-06-06 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101786843B (en) * | 2010-02-24 | 2012-03-28 | 淄博嘉环耐火材料有限公司 | Novel oversize burning-free mullite bedding brick |
| CN101955370B (en) * | 2010-04-20 | 2012-09-12 | 南京理工大学 | Lightweight heat insulating ceramic material and preparation method |
| CN101913891B (en) * | 2010-09-02 | 2012-06-20 | 河南鑫诚耐火材料股份有限公司 | Refractory bricks for flue walls of carbon anode baking furnaces and preparation method thereof |
| CN102206083A (en) * | 2011-03-07 | 2011-10-05 | 巩义市五耐科技开发有限公司 | Special fireproof and acidproof brick and preparation method thereof |
| CN104860690A (en) * | 2015-05-04 | 2015-08-26 | 安徽省亚欧陶瓷有限责任公司 | High heat shock resistance ceramic tile and production method thereof |
| CN108675804A (en) * | 2018-06-08 | 2018-10-19 | 郑州凯翔耐火材料有限公司 | A kind of highly heatproof and shockproof mullite brick and its production technology |
| CN111302818A (en) * | 2020-04-22 | 2020-06-19 | 河南省宏达炉业有限公司 | Anchoring brick and manufacturing method thereof |
| CN112159080B (en) * | 2020-10-09 | 2022-12-27 | 山东淄博沈淄耐火材料有限公司 | Special sillimanite hot-face brick for top cover brick at top of tin bath of float glass kiln and preparation method thereof |
| CN113526966A (en) * | 2021-05-17 | 2021-10-22 | 江苏苏嘉集团新材料有限公司 | Refractory brick without bubbles and gaps inside and processing method thereof |
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| US4391917A (en) * | 1980-10-27 | 1983-07-05 | Dresser Industries, Inc. | Alumino-silicate refractory brick |
| CN1323761A (en) * | 2001-07-04 | 2001-11-28 | 中国建筑材料科学研究院 | Large Al-Si system large shaped refractory products and the production process |
| CN1382664A (en) * | 2001-04-26 | 2002-12-04 | 河南省登封市第二耐火材料总厂 | Acid-resistant refractory brick and its preparing process |
| CN1405119A (en) * | 2002-11-06 | 2003-03-26 | 巩义市第五耐火材料总厂 | Microporous corundum brick and its preparation method |
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2005
- 2005-12-23 CN CNB2005101073195A patent/CN1319895C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4391917A (en) * | 1980-10-27 | 1983-07-05 | Dresser Industries, Inc. | Alumino-silicate refractory brick |
| CN1382664A (en) * | 2001-04-26 | 2002-12-04 | 河南省登封市第二耐火材料总厂 | Acid-resistant refractory brick and its preparing process |
| CN1323761A (en) * | 2001-07-04 | 2001-11-28 | 中国建筑材料科学研究院 | Large Al-Si system large shaped refractory products and the production process |
| CN1405119A (en) * | 2002-11-06 | 2003-03-26 | 巩义市第五耐火材料总厂 | Microporous corundum brick and its preparation method |
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