Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Mullite silicon carbide composite brick with low thermal conductivity and preparation method thereof
The invention discloses a mullite silicon carbide composite brick with low thermal conductivity and a preparation method thereof. The composite brick is prepared from the following raw materials in percentage by weight: 20 to 60 percent of mullite homogenized grogs, 20 to 45 percent of bauxite chamotte, 10 to 20 parts of silicon carbide, 5 to 15 parts of alumina hollow ball, 3 to 8 parts of Guangxi white clay, and with the addition of waste paper pulp accounting for 2 to 5 percent of the total weight of the raw materials. The preparation method comprises the steps that firstly mixing and grinding are performed on all the materials; the obtained mixture is subjected to compression moulding to obtain a green brick; the obtained green brick is subjected to drying, sintering, finally cooling and taking out of a kiln so as to obtain a product. According to the composite brick disclosed by the invention, the difficulties of rotary kiln cylinder body deformation caused by higher thermal conductivity causing the high temperature of the cylinder body and energy waste can be solved. The mullite silicon carbide composite brick disclosed by the invention has the characteristics of low heat conduction, thermostability, anti-erosion, anti-scouring and the like, and is used for multiple rotary kilns in China, which proves that the using effect is good.
Mullite silicon carbide composite brick with low thermal conductivity and preparation method thereof
The invention discloses a mullite silicon carbide composite brick with low thermal conductivity and a preparation method thereof. The composite brick is prepared from the following raw materials in percentage by weight: 20 to 60 percent of mullite homogenized grogs, 20 to 45 percent of bauxite chamotte, 10 to 20 parts of silicon carbide, 5 to 15 parts of alumina hollow ball, 3 to 8 parts of Guangxi white clay, and with the addition of waste paper pulp accounting for 2 to 5 percent of the total weight of the raw materials. The preparation method comprises the steps that firstly mixing and grinding are performed on all the materials; the obtained mixture is subjected to compression moulding to obtain a green brick; the obtained green brick is subjected to drying, sintering, finally cooling and taking out of a kiln so as to obtain a product. According to the composite brick disclosed by the invention, the difficulties of rotary kiln cylinder body deformation caused by higher thermal conductivity causing the high temperature of the cylinder body and energy waste can be solved. The mullite silicon carbide composite brick disclosed by the invention has the characteristics of low heat conduction, thermostability, anti-erosion, anti-scouring and the like, and is used for multiple rotary kilns in China, which proves that the using effect is good.
Mullite silicon carbide composite brick with low thermal conductivity and preparation method thereof
MA SHULONG (Autor:in) / ZHANG JILI (Autor:in) / GAO CHANGHE (Autor:in) / ZHANG DEYI (Autor:in) / WANG HAOJIE (Autor:in) / WANG ZHIFENG (Autor:in) / XIA WENBIN (Autor:in) / MA FEI (Autor:in) / ZHU LINGYUN (Autor:in) / LYU XUEFENG (Autor:in)
03.02.2016
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
Microporous low-thermal-conductivity composite mullite brick and preparation method thereof
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