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Microporous lightweight silica brick and preparation method thereof
The invention discloses a microporous lightweight silica brick and a preparation method thereof, the lightweight silica brick is mainly prepared from a mixture and a foaming agent, and the dosage of the foaming agent is 0.1-10% of the mass of the mixture; the mixture is prepared from the following components in percentage by mass: 70%-95% of a siliceous material, 1%-25% of an inorganic cementing material, 0.1%-15% of a mineralizing agent and 0.1%-5% of an additive; wherein the siliceous material is composed of siliceous particles and siliceous fine powder, the particle size of the siliceous particles is 0.1-3 mm, the particle size of the siliceous fine powder is smaller than or equal to 0.075 mm, and the mass ratio of the siliceous particles to the siliceous fine powder is (1-65): (35-99). The obtained microporous lightweight silica brick product has the advantages of fine aperture, small density, low thermal conductivity, high porosity, high mechanical strength, good high-temperature volume stability, strong acid atmosphere and slag erosion resistance and the like, is low in preparation cost and good in heat insulation effect, meets harsh high-temperature environment and heat insulation requirements of thermal equipment, and is suitable for popularization and application.
本发明公开了一种微孔轻质硅砖及其制备方法，该轻质硅砖主要由混合料和发泡剂制成，发泡剂的用量为混合料质量的0.1％～10％；混合料由以下质量百分比的组分组成：硅质材料70％～95％、无机胶凝材料1％～25％、矿化剂0.1％～15％、添加剂0.1％～5％；其中硅质材料由硅质颗粒和硅质细粉组成，硅质颗粒的粒径为0.1～3mm，硅质细粉的粒径≤0.075mm，其质量比为(1～65):(35～99)。所得微孔轻质硅砖制品具有孔径微细、密度小、热导率低、气孔率高、机械强度高、高温体积稳定性好、抗酸性气氛及渣侵蚀能力强等优点，且制备成本低，隔热效果好，满足热工设备苟刻的高温环境和隔热要求，适合推广应用。
Microporous lightweight silica brick and preparation method thereof
The invention discloses a microporous lightweight silica brick and a preparation method thereof, the lightweight silica brick is mainly prepared from a mixture and a foaming agent, and the dosage of the foaming agent is 0.1-10% of the mass of the mixture; the mixture is prepared from the following components in percentage by mass: 70%-95% of a siliceous material, 1%-25% of an inorganic cementing material, 0.1%-15% of a mineralizing agent and 0.1%-5% of an additive; wherein the siliceous material is composed of siliceous particles and siliceous fine powder, the particle size of the siliceous particles is 0.1-3 mm, the particle size of the siliceous fine powder is smaller than or equal to 0.075 mm, and the mass ratio of the siliceous particles to the siliceous fine powder is (1-65): (35-99). The obtained microporous lightweight silica brick product has the advantages of fine aperture, small density, low thermal conductivity, high porosity, high mechanical strength, good high-temperature volume stability, strong acid atmosphere and slag erosion resistance and the like, is low in preparation cost and good in heat insulation effect, meets harsh high-temperature environment and heat insulation requirements of thermal equipment, and is suitable for popularization and application.
本发明公开了一种微孔轻质硅砖及其制备方法，该轻质硅砖主要由混合料和发泡剂制成，发泡剂的用量为混合料质量的0.1％～10％；混合料由以下质量百分比的组分组成：硅质材料70％～95％、无机胶凝材料1％～25％、矿化剂0.1％～15％、添加剂0.1％～5％；其中硅质材料由硅质颗粒和硅质细粉组成，硅质颗粒的粒径为0.1～3mm，硅质细粉的粒径≤0.075mm，其质量比为(1～65):(35～99)。所得微孔轻质硅砖制品具有孔径微细、密度小、热导率低、气孔率高、机械强度高、高温体积稳定性好、抗酸性气氛及渣侵蚀能力强等优点，且制备成本低，隔热效果好，满足热工设备苟刻的高温环境和隔热要求，适合推广应用。
Microporous lightweight silica brick and preparation method thereof
一种微孔轻质硅砖及其制备方法
LI WENFENG (author) / GUO HUISHI (author) / HAN PING (author) / YE FANGBAO (author) / HOU YONGGAI (author) / ZOU WENJUN (author)
2021-09-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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