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A platform for research: civil engineering, architecture and urbanism
AZC (alumina-zirconia-chromium sesquioxide) lattice brick, manufacturing method of AZC lattice brick and heat accumulation chamber built of AZC lattice brick
The invention discloses an AZC (alumina-zirconia-chromium sesquioxide) lattice brick, a manufacturing method of the AZC lattice brick and a heat accumulation chamber built of the AZC lattice brick. The AZC lattice brick is manufactured from the following components in percentage by weight: 70-75% of alumina, 7-12% of zirconia, 6-10% of chromium sesquioxide and 9-12% of aluminum phosphate, wherein the chromium sesquioxide is prepared by calcining waste chromium sesquioxide twice, and the chromium sesquioxide has a particle size of more than 6,000 meshes. The AZC lattice brick has quite low apparent porosity, high bulk density, high compression strength at normal temperature and high refractoriness under the load of 0.2MPa. External substances (harmful gases generated during the combustion of petroleum coke) can be prevented from intruding into the AZC lattice brick so that the organizational structures of refractory materials can be kept intact. In addition, the AZC lattice brick has strong capacity of resisting the erosion of harmful gases generated during the combustion of petroleum coke and has good creep resistance.
AZC (alumina-zirconia-chromium sesquioxide) lattice brick, manufacturing method of AZC lattice brick and heat accumulation chamber built of AZC lattice brick
The invention discloses an AZC (alumina-zirconia-chromium sesquioxide) lattice brick, a manufacturing method of the AZC lattice brick and a heat accumulation chamber built of the AZC lattice brick. The AZC lattice brick is manufactured from the following components in percentage by weight: 70-75% of alumina, 7-12% of zirconia, 6-10% of chromium sesquioxide and 9-12% of aluminum phosphate, wherein the chromium sesquioxide is prepared by calcining waste chromium sesquioxide twice, and the chromium sesquioxide has a particle size of more than 6,000 meshes. The AZC lattice brick has quite low apparent porosity, high bulk density, high compression strength at normal temperature and high refractoriness under the load of 0.2MPa. External substances (harmful gases generated during the combustion of petroleum coke) can be prevented from intruding into the AZC lattice brick so that the organizational structures of refractory materials can be kept intact. In addition, the AZC lattice brick has strong capacity of resisting the erosion of harmful gases generated during the combustion of petroleum coke and has good creep resistance.
AZC (alumina-zirconia-chromium sesquioxide) lattice brick, manufacturing method of AZC lattice brick and heat accumulation chamber built of AZC lattice brick
JIANG YOUJUN (author) / JIANG XIANG (author) / GU YAN (author)
2015-06-10
Patent
Electronic Resource
English
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