CN104628396A - Silicon carbide anti-skinning fireproof pouring material - Google Patents
Silicon carbide anti-skinning fireproof pouring material Download PDFInfo
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- CN104628396A CN104628396A CN201310558943.1A CN201310558943A CN104628396A CN 104628396 A CN104628396 A CN 104628396A CN 201310558943 A CN201310558943 A CN 201310558943A CN 104628396 A CN104628396 A CN 104628396A
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Abstract
The invention relates to a silicon carbide anti-skinning fireproof pouring material, which comprises the following raw materials by weight part: 50-65 parts of aggregate, 25-45 parts of powder and 5-10 parts of additive; the aggregate is composed of magnesium aluminate spinel, zircon and silicon carbide; the powder is composed of silicon carbide powder, alpha-Al2O3 powder, magnesium oxide and silicon nitride powder; and the additive is composed of carboxymethyl cellulose and sodium hexametaphosphate. When the silicon carbide anti-skinning fireproof pouring material is used in a precombustion chamber, and thereby the raw material can slide down and materials blocking can be prevented.
Description
Technical field
The invention belongs to technical field of refractory materials, particularly relate to a kind of silicon carbide crusting resistant refractory castable.
Background technology
Compared with qualitative refractory product, with refractory castable be that the unshape refractory of representative has that technical process is short, production energy consumption and cost is low, easy to use, applied widely, globality and the advantage such as result of use is good, thus worldwide obtain and develop rapidly, its proportion shared in whole refractory materials is more and more higher.In the country of some refractory technologies advanced person, the output of unshape refractory is close to the output even having exceeded setting goods.Such as, the ratio that current Japanese unshape refractory output accounts for whole refractory materials reaches about 60%; The U.S. be about 50%; English, moral, Fa Deng state are 40% ~ 50%.Nowadays, refractory castable has been widely used in the high temperature service of the industrial circles such as metallurgy, building materials, electric power, chemical industry, such as, in quality coal in cement kiln systems, has now widely applied the refractory castable of various material.
In new type dry kiln, decomposing furnace tapering, settling chamber, kiln tail slope etc., because thermal load is high, stand the chilling impact that fault stops kiln, these positions mould material used has higher heat resistance and good alkali resistance, wear resistance and thermal shock resistance simultaneously, comparatively normal these positions used be steel fiber castable or High-Alumina Low Cement Castable, due to these local easily putties, through air bubble, the hydraulic giant even impact of iron staff, very serious to the damage of mould material, often stop kiln maintenance.
Summary of the invention
In view of this, for the deficiency that the above prior art exists, provide a kind of silicon carbide crusting resistant refractory castable, during this silicon carbide crusting resistant refractory castable application settling chamber, raw material landing can be made and then prevent putty.
A kind of silicon carbide crusting resistant refractory castable, comprise the raw material of following portions by weight: 50 ~ 65 parts of aggregates, 25 ~ 45 parts of powders, 5 ~ 10 parts of admixtures, described aggregate is made up of magnesium-aluminium spinel, zircon and silicon carbide; Described powder is by carborundum powder, α ~ Al
2o
3powder, magnesium oxide and silicon nitride powder form; Described admixture is made up of carboxymethyl cellulose, Sodium hexametaphosphate 99.
Technique effect of the present invention is: adding zircon is because it can improve resistance to spallation and erosion resistance, that is, zircon pyrolytic decomposition is zirconium white and silicon-dioxide, silicon-dioxide and magnesium oxide react and form forsterite, aluminum oxide and magnesium oxide react and carry out calcining and generates spinel, simultaneous oxidation zirconium can make up the microfracture that microfracture produces, magnesium-aluminium spinel does not react with cement kiln material or aluminum silica refractory, thus avoid refractory materials before forming fine and close silicon-dioxide glaze layer and occurred by the situation that cement kiln material corrodes, prevent skinning; Adding of silicon nitride can further improve resistive connection skin.
embodiment
The technical solution adopted in the present invention a certain proportion of aggregate, powder and admixture is carried out mixing to obtain silicon carbide crusting resistant refractory castable.Concretely:
A kind of silicon carbide crusting resistant refractory castable, comprise the raw material of following portions by weight: 50 ~ 65 parts of aggregates, 25 ~ 45 parts of powders, 5 ~ 10 parts of admixtures, described aggregate is made up of magnesium-aluminium spinel, zircon and silicon carbide; Described powder is by carborundum powder, α ~ Al
2o
3powder, magnesium oxide and silicon nitride powder form; Described admixture is made up of carboxymethyl cellulose, Sodium hexametaphosphate 99.Wherein, adding zircon is because it can improve resistance to spallation and erosion resistance, that is, zircon pyrolytic decomposition is zirconium white and silicon-dioxide, silicon-dioxide and magnesium oxide react and form forsterite, aluminum oxide and magnesium oxide react and carry out calcining and generates spinel, simultaneous oxidation zirconium can make up the microfracture that microfracture produces, magnesium-aluminium spinel does not react with cement kiln material or aluminum silica refractory, thus avoid refractory materials before forming fine and close silicon-dioxide glaze layer and occurred by the situation that cement kiln material corrodes, prevent skinning; Adding of silicon nitride can further improve resistive connection skin.
Further, aggregate is 55 parts, and powder is 40 parts, and admixture is 5 parts; Aggregate comprises coarse aggregate, middle aggregate, fine aggregate, the particle diameter of coarse aggregate is 3 ~ 5mm, the particle diameter of middle aggregate is 1 ~ 3mm, the particle diameter of fine aggregate is 0.088 ~ 1mm, and such as, in aggregate, the parts by weight of coarse aggregate, middle aggregate, fine aggregate are coarse aggregate 25 parts, 45 parts, middle aggregate, fine aggregate 30 parts.
Further, carborundum powder, α ~ Al in described powder
2o
3the parts by weight of powder, magnesium oxide and silicon nitride powder are: carborundum powder 30 parts, α ~ Al
2o
330 parts, powder, 30 parts, magnesium oxide, silicon nitride powder 10 parts; In described admixture, the parts by weight of carboxymethyl cellulose, Sodium hexametaphosphate 99 are: carboxymethyl cellulose 70 parts, Sodium hexametaphosphate 99 30 parts.
Below illustrate above-mentioned silicon carbide crusting resistant refractory castable:
Embodiment 1
A kind of silicon carbide crusting resistant refractory castable, comprise the raw material of following portions by weight: aggregate is 55 parts, powder is 40 parts, and admixture is 5 parts; Aggregate comprises coarse aggregate, middle aggregate, fine aggregate, and the particle diameter of coarse aggregate is 3mm, and the particle diameter of middle aggregate is 1mm, and the particle diameter of fine aggregate is 0.088mm.Described aggregate is made up of magnesium-aluminium spinel, zircon and silicon carbide; Described powder is by carborundum powder, α ~ Al
2o
3powder, magnesium oxide and silicon nitride powder form; Described admixture is made up of carboxymethyl cellulose, Sodium hexametaphosphate 99.
Embodiment 2
A kind of silicon carbide crusting resistant refractory castable, comprise the raw material of following portions by weight: aggregate is 50 parts, powder is 45 parts, and admixture is 5 parts; Aggregate comprises coarse aggregate, middle aggregate, fine aggregate, and the particle diameter of coarse aggregate is 5mm, and the particle diameter of middle aggregate is 3mm, and the particle diameter of fine aggregate is 1mm.Described aggregate is made up of magnesium-aluminium spinel, zircon and silicon carbide; Described powder is by carborundum powder, α ~ Al
2o
3powder, magnesium oxide and silicon nitride powder form; Described admixture is made up of carboxymethyl cellulose, Sodium hexametaphosphate 99.
Embodiment 3
A kind of silicon carbide crusting resistant refractory castable, comprise the raw material of following portions by weight: aggregate is 65 parts, powder is 25 parts, and admixture is 10 parts; Aggregate comprises coarse aggregate, middle aggregate, fine aggregate, and the particle diameter of coarse aggregate is 4mm, and the particle diameter of middle aggregate is 2mm, and the particle diameter of fine aggregate is 0.5mm.Described aggregate is made up of magnesium-aluminium spinel, zircon and silicon carbide; Described powder is by carborundum powder, α ~ Al
2o
3powder, magnesium oxide and silicon nitride powder form; Described admixture is made up of carboxymethyl cellulose, Sodium hexametaphosphate 99.
As described above, be only preferred embodiment of the present invention, when not limiting scope of the invention process with this, the simple equivalence namely generally done according to the present patent application the scope of the claims and invention description content changes and modifies, and all still remains within the scope of the patent.
Claims (6)
1. a silicon carbide crusting resistant refractory castable, is characterized in that: the raw material comprising following portions by weight: 50 ~ 65 parts of aggregates, 25 ~ 45 parts of powders, 5 ~ 10 parts of admixtures, and described aggregate is made up of magnesium-aluminium spinel, zircon and silicon carbide; Described powder is by carborundum powder, α ~ Al
2o
3powder, magnesium oxide and silicon nitride powder form; Described admixture is made up of carboxymethyl cellulose, Sodium hexametaphosphate 99.
2. silicon carbide crusting resistant refractory castable according to claim 1, is characterized in that: aggregate is 55 parts, and powder is 40 parts, and admixture is 5 parts.
3. silicon carbide crusting resistant refractory castable according to claim 1, it is characterized in that: aggregate comprises coarse aggregate, middle aggregate, fine aggregate, the particle diameter of coarse aggregate is 3 ~ 5mm, and the particle diameter of middle aggregate is 1 ~ 3mm, and the particle diameter of fine aggregate is 0.088 ~ 1mm.
4. silicon carbide crusting resistant refractory castable according to claim 3, is characterized in that: in aggregate, the parts by weight of coarse aggregate, middle aggregate, fine aggregate are coarse aggregate 25 parts, 45 parts, middle aggregate, fine aggregate 30 parts.
5. silicon carbide crusting resistant refractory castable according to claim 1, is characterized in that: the carborundum powder in described powder, α ~ Al
2o
3the parts by weight of powder, magnesium oxide and silicon nitride powder are: carborundum powder 30 parts, α ~ Al
2o
330 parts, powder, 30 parts, magnesium oxide, silicon nitride powder 10 parts.
6. silicon carbide crusting resistant refractory castable according to claim 1, is characterized in that: in described admixture, the parts by weight of carboxymethyl cellulose, Sodium hexametaphosphate 99 are: carboxymethyl cellulose 70 parts, Sodium hexametaphosphate 99 30 parts.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310558943.1A CN104628396A (en) | 2013-11-12 | 2013-11-12 | Silicon carbide anti-skinning fireproof pouring material |
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| CN201310558943.1A CN104628396A (en) | 2013-11-12 | 2013-11-12 | Silicon carbide anti-skinning fireproof pouring material |
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| CN104628396A true CN104628396A (en) | 2015-05-20 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106045534A (en) * | 2016-06-03 | 2016-10-26 | 宜兴新威利成耐火材料有限公司 | Magnesium aluminate spinel tin refractory castable |
| CN106904980A (en) * | 2017-03-10 | 2017-06-30 | 天津纳诺泰克科技有限公司 | A kind of magnesium aluminum spinel pouring material of blast furnace iron outlet groove slag corrosion resistance |
| CN107555948A (en) * | 2017-09-06 | 2018-01-09 | 福建省德化县嘉威陶瓷有限公司 | Wear-resistant ceramic product and manufacturing process thereof |
| CN107879753A (en) * | 2017-11-24 | 2018-04-06 | 中钢集团洛阳耐火材料研究院有限公司 | A kind of carborundum magnesia-aluminum spinel composite fire-resistant material |
| CN110903097A (en) * | 2019-12-11 | 2020-03-24 | 中钢集团洛阳耐火材料研究院有限公司 | Preparation method of in-situ composite combined magnesia-alumina spinel-silicon carbide refractory material |
| CN111662090A (en) * | 2020-07-07 | 2020-09-15 | 中钢集团洛阳耐火材料研究院有限公司 | Magnesium aluminate spinel-silicon carbide-aluminum composite refractory material |
| CN112851362A (en) * | 2021-03-17 | 2021-05-28 | 伟纳康工程技术有限公司 | Novel anti-skinning material for mulberry leaves and preparation method and application thereof |
| CN114516757A (en) * | 2020-11-20 | 2022-05-20 | 江苏恒耐炉料集团有限公司 | Anti-skinning nano lining plate component for cement kiln and processing flow |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101987793A (en) * | 2010-11-12 | 2011-03-23 | 安徽瑞泰新材料科技有限公司 | Anti-skinning pouring material for cement kiln |
-
2013
- 2013-11-12 CN CN201310558943.1A patent/CN104628396A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101987793A (en) * | 2010-11-12 | 2011-03-23 | 安徽瑞泰新材料科技有限公司 | Anti-skinning pouring material for cement kiln |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106045534A (en) * | 2016-06-03 | 2016-10-26 | 宜兴新威利成耐火材料有限公司 | Magnesium aluminate spinel tin refractory castable |
| CN106904980A (en) * | 2017-03-10 | 2017-06-30 | 天津纳诺泰克科技有限公司 | A kind of magnesium aluminum spinel pouring material of blast furnace iron outlet groove slag corrosion resistance |
| CN107555948A (en) * | 2017-09-06 | 2018-01-09 | 福建省德化县嘉威陶瓷有限公司 | Wear-resistant ceramic product and manufacturing process thereof |
| CN107555948B (en) * | 2017-09-06 | 2020-06-02 | 福建省德化县嘉威陶瓷有限公司 | Wear-resistant ceramic product and manufacturing process thereof |
| CN107879753A (en) * | 2017-11-24 | 2018-04-06 | 中钢集团洛阳耐火材料研究院有限公司 | A kind of carborundum magnesia-aluminum spinel composite fire-resistant material |
| CN107879753B (en) * | 2017-11-24 | 2020-10-23 | 中钢集团洛阳耐火材料研究院有限公司 | Silicon carbide-magnesium aluminate spinel composite refractory material |
| CN110903097A (en) * | 2019-12-11 | 2020-03-24 | 中钢集团洛阳耐火材料研究院有限公司 | Preparation method of in-situ composite combined magnesia-alumina spinel-silicon carbide refractory material |
| CN110903097B (en) * | 2019-12-11 | 2021-09-21 | 中钢集团洛阳耐火材料研究院有限公司 | Preparation method of in-situ composite combined magnesia-alumina spinel-silicon carbide refractory material |
| CN111662090A (en) * | 2020-07-07 | 2020-09-15 | 中钢集团洛阳耐火材料研究院有限公司 | Magnesium aluminate spinel-silicon carbide-aluminum composite refractory material |
| CN114516757A (en) * | 2020-11-20 | 2022-05-20 | 江苏恒耐炉料集团有限公司 | Anti-skinning nano lining plate component for cement kiln and processing flow |
| CN112851362A (en) * | 2021-03-17 | 2021-05-28 | 伟纳康工程技术有限公司 | Novel anti-skinning material for mulberry leaves and preparation method and application thereof |
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Application publication date: 20150520 |