CN102503464A - Pouring material of silicon carbide - Google Patents
Pouring material of silicon carbide Download PDFInfo
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- CN102503464A CN102503464A CN2011103271641A CN201110327164A CN102503464A CN 102503464 A CN102503464 A CN 102503464A CN 2011103271641 A CN2011103271641 A CN 2011103271641A CN 201110327164 A CN201110327164 A CN 201110327164A CN 102503464 A CN102503464 A CN 102503464A
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Abstract
The invention discloses a pouring material of silicon carbide, which comprises SiC, Guangxi mud, aluminate cement, silicon micropowder, poly-carboxylic acid + wood calcium powder, carboxymethyl cellulose and alumina powder. The pouring material also comprises boron nitride + boron carbide and organic fibre. According to the product disclosed by the invention, a compound bonding agent which can be used for increasing the plasticity and the high-temperature performance of the material and various admixtures are added, the workability, the cohesiveness and the like of the material are effectively enhanced, and various indexes of the density, the strength, the heat conductivity, the use temperature and the like of the material are all improved greatly. According to the product, the raw material of high-purity SiC is adopted, the distribution of the particle size of the material is regulated by adding different antioxidants, the oxidation resistance of the SiC material is effectively enhanced, and the service life of the pouring material of the silicon carbide is prolonged.
Description
Technical field
The present invention relates to mould material.
Background technology
Along with the continuous increase and the rapid development of economy of world population, the quantity of municipal wastes and trade refuse sharply increases, and the environment of human survival is caused serious harm.Therefore, the processing of rubbish is a problem demanding prompt solution.Traditional method of burying rubbish not only takes up room, and causes phreatic severe contamination.The method of treating refuse at present has: biological treatment, thermal treatment etc.Show also do not have any technology can replace burning method at present after the method for the various refuse treatments of comparative studies, this method has that the capacity of subtracting is big, to handle timely, innoxious degree high and can reclaim characteristics such as heat energy.Because the rubbish variation causes combustion atmosphere unstable, existing acid atmosphere has alkaline atmosphere again, thereby the refractory materials of exploitation excellent performance has become the task of top priority.Incinerator is to the requirement of refractory materials: (1) HS and good wear resistance, and with opposing wearing and tearing of solid materials and washing away of hot gas flow.(2) good volume stability and acid-fast alkali-proof property is with the erosion of acid-basicity atmosphere in the reaistance furnace.(3) good thermal shocking stability is with the variation of the opposing furnace temperature destruction to material.(4) good corrosion resistance causes that to avoid corroding furnace lining bursts apart.The conventional chromium refractory materials that contains is widely used in the incinerator furnace lining with its excellent slag resistance, but its high density and intensity cause the poor toughness of material, and hexavalent chromium polluted and national requirements for environmental protection is not inconsistent, so the anti-material of chromium matter will be replaced gradually.
Summary of the invention
Technical problem to be solved by this invention just provides the siliceous mould material of a kind of carbonization; Possess HS and good wear resistance, good volume stability and acid-fast alkali-proof property, good thermal shocking stability, good corrosion resistance, compliance with environmental protection requirements simultaneously.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: the siliceous mould material of carbonization is characterized in that: comprise SiC, Guangxi mud, aluminate cement, silicon powder, poly carboxylic acid+wooden calcium powder, CMC 99.5, aluminum oxide powder.
As preferably, said mould material also comprises SP 1+norbide and organic fibre.
As preferably; SiC, Guangxi mud, SP 1+norbide, aluminate cement, silicon powder, aluminum oxide powder are main raw material in the said mould material, and the weight percent of each ingredients constitute main raw material gross weight of said main raw material is SiC82-90%, Guangxi mud 1-3%, SP 1+norbide 1-2%, aluminate cement 3-7%, silicon powder 1-5%, aluminum oxide powder 3-8%.
As preferably, the weight percent of each ingredients constitute main raw material gross weight of said main raw material is SiC82%, Guangxi mud 3%, SP 1+norbide 2%, aluminate cement 7%, silicon powder 3%, aluminum oxide powder 3%.
As preferably, the weight percent of each ingredients constitute main raw material gross weight of said main raw material is SiC86%, Guangxi mud 2%, SP 1+norbide 1.5%, aluminate cement 3.5%, silicon powder 3.5%, aluminum oxide powder 3.5%.
As preferably, the weight percent of each ingredients constitute main raw material gross weight of said main raw material is SiC90%, Guangxi mud 1%, SP 1+norbide 1%, aluminate cement 3%, silicon powder 1%, aluminum oxide powder 4%.
As preferably, said organic fibre, poly carboxylic acid+wooden calcium powder, CMC 99.5 are admixture, and each ingredients constitute main raw material weight percent is organic fibre 0-0.5%, poly carboxylic acid+wooden calcium powder 0.10-0.30%, CMC 99.5 0.5% in the admixture.
Product of the present invention adds the combined binder and the various admixture that can increase material plasticity and high-temperature behavior, effectively improves the workability of material, cohesiveness etc., and to the density of material, intensity, each item indexs such as thermal conductivity and use temperature all are greatly improved.Product is selected the high-purity alpha-SiC raw material for use, through adding different inhibitors, adjusts the particle size distribution of material, has effectively improved the oxidation-resistance of SiC material, prolongs its work-ing life.The premium properties of SiC refractory materials: resistance to fouling and erosion resistibility are strong, abrasion resistance is higher, heat-shock resistance is good, and acid-basicity atmosphere flexibility is strong etc., so its application prospect in domestic waste incineration is very wide.The SIC material will become incinerator does not have chromaking with refractory materials important directions with its excellent performance.
Embodiment
The siliceous mould material embodiment 1 of carbonization of the present invention comprises SiC, Guangxi mud, aluminate cement, silicon powder, poly carboxylic acid+wooden calcium powder, CMC 99.5, aluminum oxide powder.Said mould material also comprises SP 1+norbide and organic fibre.SiC, Guangxi mud, SP 1+norbide, aluminate cement, silicon powder, aluminum oxide powder are main raw material in the said mould material, and the weight percent of each ingredients constitute main raw material gross weight of said main raw material is SiC82-90%, Guangxi mud 1-3%, SP 1+norbide 1-2%, aluminate cement 3-7%, silicon powder 1-5%, aluminum oxide powder 3-8%.
Concrete, the weight percent of each ingredients constitute main raw material gross weight of said main raw material is SiC82%, Guangxi mud 3%, BN+B4C2%, aluminate cement 7%, silicon powder 3%, aluminum oxide powder 3%.Said organic fibre, poly carboxylic acid+wooden calcium powder, CMC 99.5 are admixture, and each ingredients constitute main raw material weight percent is organic fibre 0-0.5%, poly carboxylic acid+wooden calcium powder 0.10-0.30%, CMC 99.5 0.5% in the admixture.
Embodiment 2, differently with embodiment 1 are that the weight percent of each ingredients constitute main raw material gross weight of said main raw material is SiC86%, Guangxi mud 2%, BN+B4C1.5%, aluminate cement 3.5%, silicon powder 3.5%, aluminum oxide powder 3.5%.
Embodiment 3, differently with embodiment 1 are that the weight percent of each ingredients constitute main raw material gross weight of said main raw material is SiC90%, Guangxi mud 1%, BN+B4C1%, aluminate cement 3%, silicon powder 1%, aluminum oxide powder 4%.
The conventional chromium refractory materials that contains is widely used in the incinerator furnace lining with its excellent slag resistance, but its high density and intensity cause the poor toughness of material, and hexavalent chromium polluted and national requirements for environmental protection is not inconsistent, so the anti-material of chromium matter will be replaced gradually.Good performance such as resistance to fouling and erosion resistibility are strong, abrasion resistance is higher, heat-shock resistance is good and the SiC fire resistant materials has, and acid-basicity atmosphere flexibility is strong etc., so its application prospect in domestic waste incineration and cement decomposing furnace is very wide.
This project is through the technical study to domestic and international traditional product, and is actual in conjunction with the user fully absorbing on the basis of its advantage, carried out technological innovation at aspects such as prescription and technologies.Main innovate point has:
1, this product has the ability in the complicated atmosphere long term operation of redox.Compare with traditional magnesium chromia material, volume density is low, and the kiln heat storage capacity is little, and the kiln heating and cooling are fast, are convenient to furnace operation, also can not produce the secondary pollution with the anti-material in back simultaneously.
2, product has added norbide B4C, thereby has protected the SIC material oxidized, has improved product work-ing life in oxidizing atmosphere greatly.
3, product adds admixtures such as carboxyl methyl cellulose, SP 1 BN, poly carboxylic acid, under equal conditions, improves the over-all properties of material greatly.
4, add Guangxi mud, activated alumina, CR25 etc. makes product under the different temperature change condition, remedies a kind of deficiency of wedding agent, guarantees that product all has the good operation ability in whole temperature range, improves the life-time service life-span of product.
Claims (7)
1. the siliceous mould material of carbonization is characterized in that: comprise SiC, Guangxi mud, aluminate cement, silicon powder, poly carboxylic acid+wooden calcium powder, CMC 99.5, aluminum oxide powder.
2. the siliceous mould material of carbonization according to claim 1, it is characterized in that: said mould material also comprises SP 1+norbide and organic fibre.
3. the siliceous mould material of carbonization according to claim 2; It is characterized in that: SiC, Guangxi mud, SP 1+norbide, aluminate cement, silicon powder, aluminum oxide powder are main raw material in the said mould material, and the weight percent of each ingredients constitute main raw material gross weight of said main raw material is SiC82-90%, Guangxi mud 1-3%, SP 1+norbide 1-2%, aluminate cement 3-7%, silicon powder 1-5%, aluminum oxide powder 3-8%.
4. the siliceous mould material of carbonization according to claim 3 is characterized in that: the weight percent of each ingredients constitute main raw material gross weight of said main raw material is SiC82%, Guangxi mud 3%, SP 1+norbide 2%, aluminate cement 7%, silicon powder 3%, aluminum oxide powder 3%.
5. the siliceous mould material of carbonization according to claim 3 is characterized in that: the weight percent of each ingredients constitute main raw material gross weight of said main raw material is SiC86%, Guangxi mud 2%, SP 1+norbide 1.5%, aluminate cement 3.5%, silicon powder 3.5%, aluminum oxide powder 3.5%.
6. the siliceous mould material of carbonization according to claim 3 is characterized in that: the weight percent of each ingredients constitute main raw material gross weight of said main raw material is SiC90%, Guangxi mud 1%, SP 1+norbide 1%, aluminate cement 3%, silicon powder 1%, aluminum oxide powder 4%.
7. according to the siliceous mould material of each described carbonization of claim 3 to 6; It is characterized in that: said organic fibre, poly carboxylic acid+wooden calcium powder, CMC 99.5 are admixture, and each ingredients constitute main raw material weight percent is organic fibre 0-0.5%, poly carboxylic acid+wooden calcium powder 0.10-0.30%, CMC 99.5 0.5% in the admixture.
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| CN 201110327164 CN102503464B (en) | 2011-10-25 | 2011-10-25 | Pouring material of silicon carbide |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103539469A (en) * | 2013-10-29 | 2014-01-29 | 宁夏天纵泓光余热发电技术有限公司 | Refractory castable for incinerator |
| CN103553681A (en) * | 2013-11-01 | 2014-02-05 | 徐梅子 | Pipeline spray paint and using method thereof |
| CN104355644A (en) * | 2014-12-01 | 2015-02-18 | 张婷 | Castable specially used for mouths of 12000T cement kilns |
| CN106747279A (en) * | 2016-12-14 | 2017-05-31 | 安徽瑞研新材料技术研究院有限公司 | A kind of inorganic non-metallic exotic material and preparation method thereof |
| CN107353019A (en) * | 2017-06-20 | 2017-11-17 | 浙江锦诚新材料股份有限公司 | A kind of waste incinerator silicon carbide corrosive-proof plastic material |
| CN107954643A (en) * | 2017-12-12 | 2018-04-24 | 湖南太子新材料科技有限公司 | A kind of carborundum shaped piece material preparation method |
| CN108675803A (en) * | 2018-04-18 | 2018-10-19 | 登封市宏源耐火材料有限公司 | A kind of acid regeneration reacting furnace inner lining pouring material and preparation method thereof |
| CN115403391A (en) * | 2022-08-16 | 2022-11-29 | 鄂尔多斯市西金矿冶有限责任公司 | Silicon carbide-based castable for repairing carbonaceous furnace eye bricks and preparation method thereof |
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| CN1313261A (en) * | 2001-04-27 | 2001-09-19 | 项新惠 | Refractory for cupola furnace |
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2011
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| US7141309B2 (en) * | 2003-03-18 | 2006-11-28 | Ngk Insulators, Ltd. | High thermal conductive material having high thermal conductivity and process for producing the same |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103539469A (en) * | 2013-10-29 | 2014-01-29 | 宁夏天纵泓光余热发电技术有限公司 | Refractory castable for incinerator |
| CN103539469B (en) * | 2013-10-29 | 2015-06-10 | 宁夏天纵泓光余热发电技术有限公司 | Refractory castable for incinerator |
| CN103553681A (en) * | 2013-11-01 | 2014-02-05 | 徐梅子 | Pipeline spray paint and using method thereof |
| CN103553681B (en) * | 2013-11-01 | 2014-11-05 | 新疆尚上贸易有限公司 | Pipeline spray paint and using method thereof |
| CN104355644A (en) * | 2014-12-01 | 2015-02-18 | 张婷 | Castable specially used for mouths of 12000T cement kilns |
| CN106747279A (en) * | 2016-12-14 | 2017-05-31 | 安徽瑞研新材料技术研究院有限公司 | A kind of inorganic non-metallic exotic material and preparation method thereof |
| CN107353019A (en) * | 2017-06-20 | 2017-11-17 | 浙江锦诚新材料股份有限公司 | A kind of waste incinerator silicon carbide corrosive-proof plastic material |
| CN107954643A (en) * | 2017-12-12 | 2018-04-24 | 湖南太子新材料科技有限公司 | A kind of carborundum shaped piece material preparation method |
| CN108675803A (en) * | 2018-04-18 | 2018-10-19 | 登封市宏源耐火材料有限公司 | A kind of acid regeneration reacting furnace inner lining pouring material and preparation method thereof |
| CN115403391A (en) * | 2022-08-16 | 2022-11-29 | 鄂尔多斯市西金矿冶有限责任公司 | Silicon carbide-based castable for repairing carbonaceous furnace eye bricks and preparation method thereof |
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| CN102503464B (en) | 2013-07-31 |
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Address after: 313100 new industrial park, pheasant City, Huzhou, Zhejiang, Changxing County Patentee after: Zhejiang Jincheng new material Limited by Share Ltd Address before: 313100 pheasant Town Industrial Zone, Huzhou, Zhejiang, Changxing County Patentee before: Zhejiang Jincheng Refractories Co., Ltd. |