CN1329346C - High aluminium, heat shock resistant refractory brick and production process thereof - Google Patents
High aluminium, heat shock resistant refractory brick and production process thereof Download PDFInfo
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- CN1329346C CN1329346C CNB2005101073161A CN200510107316A CN1329346C CN 1329346 C CN1329346 C CN 1329346C CN B2005101073161 A CNB2005101073161 A CN B2005101073161A CN 200510107316 A CN200510107316 A CN 200510107316A CN 1329346 C CN1329346 C CN 1329346C
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Abstract
The present invention relates to a high-aluminium and heat shock resistant refractory brick and a production process thereof. 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 high-aluminum material, cordierite, andalusite, and white slime, and a slurry binding agent of 3 to 15% of the weight of the base material is added. The present invention has the production method that the 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 therefractory 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 a kind of high aluminium, heat shock resistant refractory brick and the production method thereof that the iron and steel smelting blast funnace hot blast stove uses.
Two, background technology
The fast development of science and technology, for blast furnace maximizes and the development of hotblast stove longevity technology provides very big opportunity, thereupon, 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 generally all is to make wedding agent by water or lignin liquor, and refractory brick base-material proportioning is unreasonable again, and therefore, the number of times of the anti-water-cooled experiment of present heat shock resistant refractory brick is generally at 20 times, 30 times, 40 times, 50 times, 70 times, seldom have more than 80 times, but these refractory brick brick in use occurs falling easily owing to reasons such as thermal shock resistance differences, cracked phenomenon, work-ing life is short, cause the blowing out overhaul at last, cause 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 high aluminium, heat shock resistant refractory brick and production method thereof, 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 high aluminium material, trichroite, andaluzite and white clay constitute base-material, the mud wedding agent that adds the 3-15% of base-material weight is again made, its production method is to add 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 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.
Provided by the aforementioned techniques scheme, heat shock resistant refractory brick of the present invention is by the weight meter: high aluminium material 50-70%, trichroite 5-15%, white clay 8-15% and andaluzite 10-30% 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 (in case of necessity, also can use water as wedding agent separately, but effect will differ from) that andaluzite powder 10-40%, clay powder 20-40% and water 30-50% constitute;
Said high aluminium material is the bauxitic clay of 0.088mm-5mm; The trichroite granularity is≤0.088mm; The andaluzite granularity is 0.088-0.5mm, and the clay powder fineness is less than 180 orders;
Production method of the present invention is, the mud wedding agent is by by weight: andaluzite powder 10-40%, clay powder 20-40% and water 30-50% form, mix by by weight: high aluminium material 50-70%, trichroite 5-15%, in the base-material that andaluzite 10-30% 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: high aluminium material 60%, trichroite 10%, andaluzite 20% and white clay 10% are formed, the mud 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 mud 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 high aluminium material 600kg, trichroite 100kg, andaluzite 200kg and white clay 100kg form, the mud wedding agent is made up of andaluzite powder 30kg, clay powder 20kg and water 50kg, and promptly the material be made up of the 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: high aluminium material 60% (or 600kg), trichroite 10% (or 100kg), andaluzite 20% (or 200kg) and white clay 10% (or 100kg), choose the mud wedding agent again, by weight: andaluzite powder 25% (or 25kg), clay powder 25% (or 25kg) 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 1360 ℃ 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: the base-material that high aluminium material 55%, trichroite 12%, andaluzite 18% and white clay 15% are formed with by the weight meter: the wedding agent that andaluzite powder 30%, clay powder 30% and water 40% are formed is made, the wedding agent add-on is 12% of a base-material, base-material as 10000kg is made up of high aluminium material 5500kg, trichroite 1200kg, andaluzite 1800kg and white clay 1500kg, and wedding agent is made up of andaluzite powder 360kg, clay powder 360kg and water 480kg.
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 heat shock resistant refractory brick identical with existing refractoriness under load compared when the heat shock resistant refractory brick that the present invention makes began 1450 ℃ of temperature at loading softening, 1100 ℃ of water-cooled tests, thermal shock resistance improves more than 30 times, and tool is at 10 batches, in every batch optional 100 the refractory brick test, refractory brick thermal shock resistance number of times all reaches 100 times, is up to more than 350 times, 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, refractory brick void content reduce more than 2%, and volume density increases 0.1-0.28g/cm
3Compressive strength improves more than the 20Mpa, the quality of refractory brick is improved greatly, particularly solved the low problem of existing heat shock resistant refractory brick thermal shock performance very effectively, andalusite brick as existing 1450 ℃ of refractorinesss under load, 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 100-350 time, its thermal shock resistance good, exceed people's expectation fully, 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, and save energy and material all reach 15-25%, upkeep cost is saved more than 80%, blowing out overhaul phenomenon is seldom arranged, and 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 (6)
1, a kind of high aluminium, heat shock resistant refractory brick is characterized in that being, by the weight meter: high aluminium material 50-70%, trichroite 5-15%, white clay 8-15% and andaluzite 10-30% constitute base-material, make with the mud wedding agent of base-material gross weight 3-15%.
2, a kind of high aluminium, heat shock resistant refractory brick according to claim 1 is characterized in that, said mud wedding agent is by weight: the mud that andaluzite powder 10-40%, clay powder 20-40% and water 30-50% constitute.
3, a kind of high aluminium, heat shock resistant refractory brick according to claim 1, it is characterized in that being, by the weight meter: the base-material that high aluminium material 60%, trichroite 10%, andaluzite 20% and white clay 10% are formed with by the weight meter: the mud wedding agent that 180 order andaluzite powder 30%, 180 order clay powders 20% and water 50% are formed is made, and the mud wedding agent is 10% of a base-material weight.
4, a kind of high aluminium, heat shock resistant refractory brick according to claim 1, it is characterized in that being, by the weight meter: the base-material that high aluminium material 55%, trichroite 12%, andaluzite 18% and white clay 15% are formed with by the weight meter: the mud wedding agent that andaluzite powder 30%, clay powder 30% and water 40% are formed is made, and mud wedding agent add-on is 12% of a base-material weight.
5, a kind of production method of high aluminium, heat shock resistant refractory brick, it is characterized in that being, the mud wedding agent is by by weight: andaluzite powder 10-40%, clay powder 20-40% and water 30-50% form, mix by by weight: in the base-material that high aluminium material 50-70%, trichroite 5-15%, andaluzite 10-30% and white clay 8-15% form, mud wedding agent add-on is the 3-15% of base-material weight, through mixed grind evenly after, use the shaper moulding, place sintering oven inherence 〉=1350 ℃ high-temperature firing.
6, the production method of a kind of high aluminium, heat shock resistant refractory brick according to claim 5, it is characterized in that being, at first choose base-material, by weight: high aluminium material 60%, trichroite 10%, andaluzite 20% and white clay 10%, choose the mud wedding agent again, by weight: andaluzite powder 25%, clay powder 25% and water 50% are formed, the adding weight of mud wedding agent in base-material is 10% of base-material weight, base-material and mud wedding agent inserted carry out mixed grind in the mixing pan, place compression moulding in the former again, be loaded in the sintering oven, under 1360 ℃ of high temperature, fire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101073161A CN1329346C (en) | 2005-12-23 | 2005-12-23 | High aluminium, heat shock resistant refractory brick and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101073161A CN1329346C (en) | 2005-12-23 | 2005-12-23 | High aluminium, heat shock resistant refractory brick and production process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1792948A CN1792948A (en) | 2006-06-28 |
| CN1329346C true CN1329346C (en) | 2007-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005101073161A Expired - Fee Related CN1329346C (en) | 2005-12-23 | 2005-12-23 | High aluminium, heat shock resistant refractory brick and production process thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101381236B (en) * | 2008-08-20 | 2011-12-14 | 宜兴市张泽工业炉材料厂 | High temperature fireproof brick and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05262557A (en) * | 1992-03-19 | 1993-10-12 | Ngk Insulators Ltd | Production of ceramic sintered production |
| JPH09183658A (en) * | 1995-12-27 | 1997-07-15 | Toshiba Ceramics Co Ltd | Silicon carbide refractory |
| CN1160629A (en) * | 1996-02-22 | 1997-10-01 | 东芝机械株式会社 | Clamping apparatus for precise injection molding |
| CN1559985A (en) * | 2004-02-24 | 2005-01-05 | 北京科技大学 | Light fire resisting brick of iolite-mulbite and preparation process thereby |
-
2005
- 2005-12-23 CN CNB2005101073161A patent/CN1329346C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05262557A (en) * | 1992-03-19 | 1993-10-12 | Ngk Insulators Ltd | Production of ceramic sintered production |
| JPH09183658A (en) * | 1995-12-27 | 1997-07-15 | Toshiba Ceramics Co Ltd | Silicon carbide refractory |
| CN1160629A (en) * | 1996-02-22 | 1997-10-01 | 东芝机械株式会社 | Clamping apparatus for precise injection molding |
| CN1559985A (en) * | 2004-02-24 | 2005-01-05 | 北京科技大学 | Light fire resisting brick of iolite-mulbite and preparation process thereby |
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| CN1792948A (en) | 2006-06-28 |
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