Silicon carbide porous ceramic material is made of corundum sand, silicon carbide, cordierite and other raw materials, and is prepared by molding and special high temperature sintering process. Properties of porous silicon carbide ceramics:

(1) High porosity. The most important characteristic of porous silicon carbide ceramics is that they have more evenly controlled pores. Stoma is divided into open stoma and closed stoma: the open stoma has the functions of filtration, absorption, adsorption, and elimination of echo, while the closed stoma is conducive to the transmission of heat, sound, liquid and solid particles.

(2) High intensity. Porous ceramic materials are generally made of metal oxide, silicon dioxide, silicon carbide and other materials after high-temperature calcination. These materials themselves have high strength. In the process of calcination, the boundary part of raw material particles melts and bonds, forming ceramics with high strength.

(3) Stable physical and chemical properties. Porous silicon carbide ceramic material can withstand acid and alkali corrosion, but also can withstand high temperature and high pressure, its own clean state is good, will not cause secondary pollution, is a green environmental protection functional material.

(4) High filtration accuracy and good regeneration performance. Porous ceramic materials used as filter materials have narrow pore diameter distribution range and higher porosity and specific surface