Preparation technology of carbon

Petroleum coke, the main raw material of carbon (prebaked anode), is purchased into the factory. After sampling and testing, mixing and pre-crushing are carried out according to the test results to make the particle size meet the technical requirements. It is calcined in a calciner at 65438 0250℃ under the condition of air isolation, so that the true specific gravity and powder resistance of petroleum coke meet certain requirements. After coarse crushing, medium crushing, grinding, screening and batching, dry mixing is carried out first, and then asphalt is added as binder. Then the slurry is vibrated in a die with a fixed size, pressed into a green body meeting the size requirements of customers, and then baked into a prebaked anode by a ring-type baking furnace at 65438 0200℃ according to a set baking curve under the condition of air isolation. This product is mainly used as anode of aluminum reduction cell. Its functions: first, it is used as a conductive electrode; The second is to participate in the electrochemical reaction of alumina.

I work in the carbon industry, and this answer is correct.