CN104291845B - Insulating refractory casting material containing magnesium carbonate - Google Patents
Insulating refractory casting material containing magnesium carbonate Download PDFInfo
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- CN104291845B CN104291845B CN201410519232.8A CN201410519232A CN104291845B CN 104291845 B CN104291845 B CN 104291845B CN 201410519232 A CN201410519232 A CN 201410519232A CN 104291845 B CN104291845 B CN 104291845B
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Abstract
A kind of insulating refractory casting material containing magnesium carbonate, it is made up of following raw material: mullite, Zirconium oxide fibre, magnesium carbonate, alumina hollow ball, alumina powder, fine silica powder, sodium silicate, wherein, mullite, alumina hollow ball, Zirconium oxide fibre are aggregate, and magnesium carbonate, alumina powder, fine silica powder, sodium silicate are substrate；The parts by weight of above-mentioned raw materials are: mullite 20 ~ 30 parts, Zirconium oxide fibre 10 ~ 20 parts, magnesium carbonate 5 ~ 10 parts, alumina hollow ball 20 ~ 25 parts, alumina powder 20 ~ 25 parts, fine silica powder 1 ~ 5 part, sodium silicate 1 ~ 5 part.
Description
Technical field
The invention belongs to technical field of refractory materials, particularly relate to a kind of insulating refractory casting material containing magnesium carbonate.
Background technology
Light thermal-shield refractory castable refers to the castable refractory of low thermal conductivity and low heat capacity, also referred to as thermal insulation fire-resistant pouring material.Insulating refractory casting material mainly obtains lower thermal conductivity by the way of introducing pore, and the porosity of material its thermal conductivity the highest is the lowest in general, and the lowest effect of heat insulation of thermal conductivity of the least material in aperture of pore is the best.Fireclay insulating refractory is reducing the energy resource consumption of high-temperature service, is meeting high temperature special process and require there is purposes widely.
Existing method prepares the problem of light thermal-shield refractory castable: one is that the porosity is the highest, in castable refractory, the main source of pore is aglite, the porosity preparing lightening casting material the most all thus can cannot realize the high porosity of lightening casting material less than the porosity of aglite.
Summary of the invention
In view of this, for the deficiencies in the prior art, the present invention provides the insulating refractory casting material containing magnesium carbonate of a kind of high porosity.
A kind of insulating refractory casting material containing magnesium carbonate, it is made up of following raw material: mullite, Zirconium oxide fibre, magnesium carbonate, alumina hollow ball, alumina powder, fine silica powder, sodium silicate, wherein, mullite, alumina hollow ball, Zirconium oxide fibre are aggregate, and magnesium carbonate, alumina powder, fine silica powder, sodium silicate are substrate；The parts by weight of above-mentioned raw materials are: mullite 20 ~ 30 parts, Zirconium oxide fibre 10 ~ 20 parts, magnesium carbonate 5 ~ 10 parts, alumina hollow ball 20 ~ 25 parts, alumina powder 20 ~ 25 parts, fine silica powder 1 ~ 5 part, sodium silicate 1 ~ 5 part.
In sum, the present invention is compared with prior art, alumina hollow ball in aggregate has special surface texture and boring, surface irregularity, increase contact gear ratio surface area, make aggregate and alumina powder in substrate, fine silica powder is firmly combined with, both improve fire resistance, add again intensity and the heat insulation effect of material, magnesium carbonate decomposes generation carbon dioxide under the high temperature conditions, carbon dioxide is from being coated with discharge the castable wiped, so that castable forms pore, simultaneous oxidation zirconium fiber can ensure that the thermal shock resistance of castable, and magnesium oxide reacts generation magnesium aluminate spinel with alumina powder.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail.This specific embodiment is only explanation of the invention; it is not the restriction to invention; the present embodiment can be made any amendment, but as long as all being protected by Patent Law in scope of the presently claimed invention after reading this specification by those skilled in the art as required.
Embodiment 1
A kind of insulating refractory casting material containing magnesium carbonate, it is made up of following raw material: mullite, Zirconium oxide fibre, magnesium carbonate, alumina hollow ball, alumina powder, fine silica powder, sodium silicate, wherein, mullite, alumina hollow ball, Zirconium oxide fibre are aggregate, and magnesium carbonate, alumina powder, fine silica powder, sodium silicate are substrate；The parts by weight of above-mentioned raw materials are: mullite 20 parts, Zirconium oxide fibre 20 parts, magnesium carbonate 10 parts, alumina hollow ball 20 parts, alumina powder 20 parts, fine silica powder 5 parts, sodium silicate 5 parts.
Embodiment 2
A kind of insulating refractory casting material containing magnesium carbonate, it is made up of following raw material: mullite, Zirconium oxide fibre, magnesium carbonate, alumina hollow ball, alumina powder, fine silica powder, sodium silicate, wherein, mullite, alumina hollow ball, Zirconium oxide fibre are aggregate, and magnesium carbonate, alumina powder, fine silica powder, sodium silicate are substrate；The parts by weight of above-mentioned raw materials are: mullite 30 parts, Zirconium oxide fibre 10 parts, magnesium carbonate 5 parts, alumina hollow ball 25 parts, alumina powder 25 parts, fine silica powder 4 parts, sodium silicate 1 part.
Embodiment 3
A kind of insulating refractory casting material containing magnesium carbonate, it is made up of following raw material: mullite, Zirconium oxide fibre, magnesium carbonate, alumina hollow ball, alumina powder, fine silica powder, sodium silicate, wherein, mullite, alumina hollow ball, Zirconium oxide fibre are aggregate, and magnesium carbonate, alumina powder, fine silica powder, sodium silicate are substrate；The parts by weight of above-mentioned raw materials are: mullite 25 parts, Zirconium oxide fibre 15 parts, magnesium carbonate 8 parts, alumina hollow ball 22 parts, alumina powder 22 parts, fine silica powder 4 parts, sodium silicate 4 parts.
In the aggregate of above-mentioned thermal insulation fire-resistant pouring material, alumina hollow ball in aggregate has special surface texture and boring, surface irregularity, increase contact gear ratio surface area, make aggregate and alumina powder in substrate, fine silica powder is firmly combined with, both improve fire resistance, add again intensity and the heat insulation effect of material, magnesium carbonate decomposes generation carbon dioxide under the high temperature conditions, carbon dioxide is from being coated with discharge the castable wiped, so that castable forms pore, simultaneous oxidation zirconium fiber can ensure that the thermal shock resistance of castable, and magnesium oxide reacts generation magnesium aluminate spinel with alumina powder.
Claims (4)
1. the insulating refractory casting material containing magnesium carbonate, it is characterized in that, it is made up of following raw material: mullite, Zirconium oxide fibre, magnesium carbonate, alumina hollow ball, alumina powder, fine silica powder, sodium silicate, wherein, mullite, alumina hollow ball, Zirconium oxide fibre are aggregate, and magnesium carbonate, alumina powder, fine silica powder, sodium silicate are substrate；The parts by weight of above-mentioned raw materials are: mullite 20 ~ 30 parts, Zirconium oxide fibre 10 ~ 20 parts, magnesium carbonate 5 ~ 10 parts, alumina hollow ball 20 ~ 25 parts, alumina powder 20 ~ 25 parts, fine silica powder 1 ~ 5 part, sodium silicate 1 ~ 5 part.
Insulating refractory casting material containing magnesium carbonate the most according to claim 1, it is characterised in that: the parts by weight of above-mentioned raw materials are: mullite 20 parts, Zirconium oxide fibre 20 parts, magnesium carbonate 10 parts, alumina hollow ball 20 parts, alumina powder 20 parts, fine silica powder 5 parts, sodium silicate 5 parts.
Insulating refractory casting material containing magnesium carbonate the most according to claim 1, it is characterised in that: the parts by weight of above-mentioned raw materials are: mullite 30 parts, Zirconium oxide fibre 10 parts, magnesium carbonate 5 parts, alumina hollow ball 25 parts, alumina powder 25 parts, fine silica powder 4 parts, sodium silicate 1 part.
Insulating refractory casting material containing magnesium carbonate the most according to claim 1, it is characterised in that: the parts by weight of above-mentioned raw materials are: mullite 25 parts, Zirconium oxide fibre 15 parts, magnesium carbonate 8 parts, alumina hollow ball 22 parts, alumina powder 22 parts, fine silica powder 4 parts, sodium silicate 4 parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410519232.8A CN104291845B (en) | 2014-10-07 | 2014-10-07 | Insulating refractory casting material containing magnesium carbonate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410519232.8A CN104291845B (en) | 2014-10-07 | 2014-10-07 | Insulating refractory casting material containing magnesium carbonate |
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| Publication Number | Publication Date |
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| CN104291845A CN104291845A (en) | 2015-01-21 |
| CN104291845B true CN104291845B (en) | 2016-09-14 |
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| CN201410519232.8A Active CN104291845B (en) | 2014-10-07 | 2014-10-07 | Insulating refractory casting material containing magnesium carbonate |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109020582B (en) * | 2018-09-29 | 2021-06-22 | 武汉钢铁有限公司 | Ladle heat-insulating castable and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101508587A (en) * | 2009-03-26 | 2009-08-19 | 中钢集团洛阳耐火材料研究院有限公司 | Corundum-spinel pouring material containing nano-magnesium carbonate |
| CN101723687A (en) * | 2008-10-23 | 2010-06-09 | 刘春福 | Alumina bubble lightweight insulating refractory casting material |
| CN103058683A (en) * | 2013-01-25 | 2013-04-24 | 苏州罗卡节能科技有限公司 | Medium-density mullite casting material |
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2014
- 2014-10-07 CN CN201410519232.8A patent/CN104291845B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101723687A (en) * | 2008-10-23 | 2010-06-09 | 刘春福 | Alumina bubble lightweight insulating refractory casting material |
| CN101508587A (en) * | 2009-03-26 | 2009-08-19 | 中钢集团洛阳耐火材料研究院有限公司 | Corundum-spinel pouring material containing nano-magnesium carbonate |
| CN103058683A (en) * | 2013-01-25 | 2013-04-24 | 苏州罗卡节能科技有限公司 | Medium-density mullite casting material |
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| CN104291845A (en) | 2015-01-21 |
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Effective date of registration: 20210119 Address after: 755000 Shengjin village, Zhenluo Town, Shapotou District, Zhongwei City, Ningxia Hui Autonomous Region Patentee after: Ningxia Shengjin Cement Co., Ltd Address before: 750021 the Ningxia Hui Autonomous Region Yinchuan Xixia Industrial Park Jin Bo South Road Chuangxin crane hospital Patentee before: NINGXIA TIANZONG HONGGUANG COGENERATION TECHNOLOGY Co.,Ltd. |
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