Hebi emery filter material manufacturer/Hebi emery filter material price

Emery filter material: Emery, also known as carbon silicide, is made of alumina, anthracite, and iron filings sintered by high-temperature electric fusion. It has a high melting point, high specific gravity, strong acid and abrasion resistance, and strong interception ability. It is another new filter material for sewage treatment. Silicon carbide is also called moissanite. Among contemporary non-oxide high-tech refractory materials, silicon carbide is the most widely used and economical one. It can be called emery sand or refractory sand. Silicon carbide is smelted at high temperature in a resistance furnace using quartz sand, petroleum coke, wood chips and other raw materials. At present, the silicon carbide produced industrially in my country is divided into black silicon carbide and green silicon carbide, both of which are hexagonal crystals with a specific gravity of ~/ and a microhardness of ~/.
Pure silicon carbide is a colorless and transparent crystal. Industrial silicon carbide is light yellow, green, blue or even black due to the different types and contents of impurities. The transparency varies with its purity.
An industrial process of emery
The industrial production method of silicon carbide is to use high-quality quartz sand and petroleum coke to be refined in a resistance furnace. The refined silicon carbide blocks are crushed, acid-alkali washed, magnetically separated and screened or water-separated to produce products of various particle sizes.
Two emery technical indicators
Analysis items
Data
Analysis items
Data
Density
Melting point
Bulk density
Three uses of emery
Silicon carbide has four main application areas: functional ceramics, advanced refractory materials, abrasives and metallurgical raw materials. Silicon carbide rough materials can be supplied in large quantities, which cannot be regarded as high-tech products, but the application of nano-scale silicon carbide powder with extremely high technical content cannot form economies of scale in a short time.