Shale high-heat-insulation-modulus brick

Abstract

The invention discloses a shale high-heat-insulation-modulus brick, which is prepared from following raw materials, by weight: 35-45 parts of shale, 25-30 parts of coal gangue, 10-14 parts of straws, 8-10 parts of corncob, 5-7 parts of clay, 8-12 parts of fly ash, 3-5 parts of aluminum oxide, 2-4 parts of silicon dioxide, 3-6 parts of chromium oxide, 2-5 parts of silicon carbide and 5-8 parts of titanium dioxide. The shale high-heat-insulation-modulus brick is effective in heat insulation and corrosion resistance after sintering, can be prevented from breaking and is improved in heat resistance by 2-3 times.

Description

technical field [0001] The invention relates to a shale high thermal insulation modulus brick. Background technique [0002] Shale bricks are bricks fired at high temperature using shale and coal gangue as raw materials. Most of the existing shale bricks have poor heat resistance and corrosion resistance, and are prone to rotation and fracture. Contents of the invention [0003] The object of the present invention is to provide a shale high thermal insulation modulus brick aiming at the defects in the above-mentioned prior art. [0004] In order to achieve the above object, the technical solution provided by the present invention is: a shale high thermal insulation modulus brick, which is prepared from the following raw materials in parts by weight: 35-45 parts of shale, 25-30 parts of coal gangue, 10-14 parts of straw, 8-10 parts of corn cob, 5-7 parts of clay, 8-12 parts of fly ash, 3-5 parts of alumina, 2-4 parts of silicon dioxide, 3-6 parts of chromium trioxide , 2...

AI Technical Summary

Problems solved by technology

Most of the existing shale bricks have poor heat resistance and corrosion resistance, and are prone to rotation and fracture