The columnar carburetor is processed from graphite powder with high carbon content and low sulfur content and adhesive, which has the characteristics of high carbon content, good absorption rate, and high cost-effectiveness. Can be used for the production of ordinary cast iron, gray cast iron, and ductile iron. It also belongs to the category of graphitized carbides, but the cost of columnar carbides is much lower than that of graphite fossil oil coke. It can greatly reduce production costs.