Blank making device of aluminum oxide hollow ball brick and blank making method

Abstract

The invention discloses a blank making device of an aluminum oxide hollow ball brick and a blank making method, and relates to the field of aluminum oxide hollow ball brick preparation. The aluminum oxide hollow ball brick is composed of the following substances including, by weight, 45-50 parts of aluminum oxide powder, 25-30 parts of aluminum oxide hollow microsphere particles, 10-15 parts of coating slurry and 10-15 parts of clay. According to the blank making device, through the arrangement of a hot air channel, a cold air channel and a vent hole, the hot air channel is formed in a fixed mold, and the cold air channel is formed in a movable mold, so that when raw materials in the fixed mold and the movable mold need to be dried, a user starts a hot air blower through an operation table, and a second air inlet pipe extracts external air; and air enters the hot air channel after being heated by an air heater and circulates in the hot air channel, and meanwhile, hot air flows into thecold air channel, so that the inner walls of the fixed mold and the movable mold can be heated, heating of parts, in contact with the molds, of the raw materials is improved, and the drying and forming efficiency of the raw materials is further improved.

Description

technical field [0001] The invention relates to the field of preparation of alumina hollow spherical bricks, in particular to a blank-making device and a blank-making method of alumina hollow spherical bricks. Background technique [0002] Alumina hollow ball brick is a kind of high-temperature heat insulation material widely used, which has good high temperature resistance and heat insulation performance, and plays the role of heat preservation and heat insulation in high-temperature kiln; alumina hollow ball brick has excellent It has excellent high temperature resistance and heat insulation performance, and can be directly used as the working lining of high temperature kiln. [0003] In the existing blank-making device and method for alumina hollow spherical bricks, after the raw material is added into the mold, the raw material will be heated and formed, but because the part where the raw material is in contact with the mold is less heated, this part It is difficult for...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a blank-making device and a blank-making method for alumina hollow spherical bricks in order to solve the problems that the parts where the raw material is in contact with the mold are less heated and the top may be uneven after the slurry is injected into the mold

Images