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A platform for research: civil engineering, architecture and urbanism
Corundum composite brick and preparation method thereof
The invention provides a corundum composite brick and a preparation method thereof. The corundum composite brick comprises a corundum heavy layer and a heat insulation layer combined with the corundum heavy layer, the corundum heavy layer is prepared from the following raw materials in percentage by weight: 35 to 75 percent of corundum, 10 to 30 percent of andalusite, 5 to 15 percent of aluminum oxide powder, 0 to 10 percent of chromium sesquioxide powder, 0 to 10 percent of zirconium oxide powder and 3 to 8 percent of binding clay; the heat insulation layer is prepared from the following raw materials in percentage by weight: 15 to 65 percent of aluminum oxide hollow spheres, 15 to 65 percent of mullite, 5 to 15 percent of aluminum oxide powder and 3 to 8 percent of binding clay. The corundum composite brick not only has excellent refractoriness and heat insulation effect, reduces heat loss, but also is convenient to construct and stable in structure, and can improve the use stability and operation efficiency of equipment when being used in a rotary kiln.
本发明提供一种刚玉复合砖及其制备方法。所述刚玉复合砖包括刚玉重质层和与其相结合的隔热层；所述刚玉重质层的原料组成包括：35～75wt％的刚玉、10～30wt％的红柱石、5～15wt％的氧化铝粉、0～10wt％的三氧化二铬粉、0～10wt％的氧化锆粉、3～8wt％的结合粘土；所述隔热层的原料组成包括：15～65wt％的氧化铝空心球、15～65wt％的莫来石、5～15wt％的氧化铝粉、3～8wt％的结合粘土。该刚玉复合砖不仅具有优异的耐火度和隔热效果，减少热量损失，而且施工方便，结构稳定，用于回转窑中可提高设备的使用稳定性和运行效率。
Corundum composite brick and preparation method thereof
The invention provides a corundum composite brick and a preparation method thereof. The corundum composite brick comprises a corundum heavy layer and a heat insulation layer combined with the corundum heavy layer, the corundum heavy layer is prepared from the following raw materials in percentage by weight: 35 to 75 percent of corundum, 10 to 30 percent of andalusite, 5 to 15 percent of aluminum oxide powder, 0 to 10 percent of chromium sesquioxide powder, 0 to 10 percent of zirconium oxide powder and 3 to 8 percent of binding clay; the heat insulation layer is prepared from the following raw materials in percentage by weight: 15 to 65 percent of aluminum oxide hollow spheres, 15 to 65 percent of mullite, 5 to 15 percent of aluminum oxide powder and 3 to 8 percent of binding clay. The corundum composite brick not only has excellent refractoriness and heat insulation effect, reduces heat loss, but also is convenient to construct and stable in structure, and can improve the use stability and operation efficiency of equipment when being used in a rotary kiln.
本发明提供一种刚玉复合砖及其制备方法。所述刚玉复合砖包括刚玉重质层和与其相结合的隔热层；所述刚玉重质层的原料组成包括：35～75wt％的刚玉、10～30wt％的红柱石、5～15wt％的氧化铝粉、0～10wt％的三氧化二铬粉、0～10wt％的氧化锆粉、3～8wt％的结合粘土；所述隔热层的原料组成包括：15～65wt％的氧化铝空心球、15～65wt％的莫来石、5～15wt％的氧化铝粉、3～8wt％的结合粘土。该刚玉复合砖不仅具有优异的耐火度和隔热效果，减少热量损失，而且施工方便，结构稳定，用于回转窑中可提高设备的使用稳定性和运行效率。
Corundum composite brick and preparation method thereof
一种刚玉复合砖及其制备方法
CAI BINLI (author) / ZHAN HUASHENG (author) / WEI YINGFENG (author) / FAN MINGMING (author) / GAO CHANGHE (author)
2021-07-27
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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