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Method for preparing foamed ceramic
The invention belongs to the technical field of manufacture of building materials, and relates to a method for preparing foamed ceramic, particularly relating to a method for preparing foamed ceramic with coal gangue as the main material. The method for preparing the foamed ceramic comprises the follow steps: taking 50-70 weight parts of coal gangue, 10-25 weight parts of sandstone, 15-27 weight parts of feldspar, 0-8 weight parts of dolomite and 0.5-3 weight parts of foaming agent; (2) mixing the materials in a ball mill, grinding by adding water according to the mass ratio of the materials to the water of 1:0.5 through a wet grinding method to prepare slurry, and performing mist spraying and granulation of the slurry by controlling the size of the slurry under 60 mum to obtain a powdery material; (3) loading the powdery material into kiln furniture, firing in a kiln at the firing temperature of 1120-1220 DEG C, thermally insulating for 0.5-2.5 hours, and cooling to obtain the foamed ceramic. The foamed ceramic prepared according to the method disclosed by the invention has small volume density, low heat conductivity coefficient, large compressive strength and high fire-protection rating, and can be applied to the fields of external wall insulation of a building.
Method for preparing foamed ceramic
The invention belongs to the technical field of manufacture of building materials, and relates to a method for preparing foamed ceramic, particularly relating to a method for preparing foamed ceramic with coal gangue as the main material. The method for preparing the foamed ceramic comprises the follow steps: taking 50-70 weight parts of coal gangue, 10-25 weight parts of sandstone, 15-27 weight parts of feldspar, 0-8 weight parts of dolomite and 0.5-3 weight parts of foaming agent; (2) mixing the materials in a ball mill, grinding by adding water according to the mass ratio of the materials to the water of 1:0.5 through a wet grinding method to prepare slurry, and performing mist spraying and granulation of the slurry by controlling the size of the slurry under 60 mum to obtain a powdery material; (3) loading the powdery material into kiln furniture, firing in a kiln at the firing temperature of 1120-1220 DEG C, thermally insulating for 0.5-2.5 hours, and cooling to obtain the foamed ceramic. The foamed ceramic prepared according to the method disclosed by the invention has small volume density, low heat conductivity coefficient, large compressive strength and high fire-protection rating, and can be applied to the fields of external wall insulation of a building.
Method for preparing foamed ceramic
CHEN MEITAO (author) / JIANG ZONGXIANG (author) / WANG HUAIDE (author)
2015-04-29
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
Method for preparing foamed ceramic from ceramic production waste
| European Patent Office | 2021
| European Patent Office | 2022
| European Patent Office | 2022