The recarburizer is mainly used in the steel industry and belongs to the additional steelmaking and iron-making carbon-increasing raw materials. Commonly used carbon refining agents are divided into recarburizing agents for steel making and recarburizing agents for cast iron, and other additives are also useful for recarburizing agents, such as brake pad additives, as friction materials. The steelmaking recarburizer is a carbonaceous material that is added to make up the carbon content required in the molten steel. The steelmaking recarburizer can be used in cast steel production, electric furnace steelmaking, converter steelmaking, and added to the furnace before smelting, which can greatly increase the amount of scrap steel and reduce the amount of pig iron; when it is tapped, it is added into the steel water tank, which has the function of deoxidation and carbonation. . High-quality recarburizer is an indispensable auxiliary additive for improving the process and improving the quality of molten steel in the steelmaking industry. The carbon-reinforcing agent for cast iron is mainly used in the foundry industry. The traditional cast iron carbon-increasing process mainly relies on the cupola to smelt the cast iron. The molten iron liquid passes through the hot bottom coke in the form of droplets. The carbon-increasing effect is very good, usually can be adjusted. Bottom coke height, control charge ratio and temperature of molten iron