Pig iron generally has the characteristics of fine-grained structure, compact castings and no cracks. Pig iron produced with machine-made charcoal contains less impurities and is suitable for the production of high-quality steel. In the production of non-ferrous metals, charcoal is often used as a surface flux.
It can not only reduce the splash loss of molten metal, but also reduce the saturation of gas in the melt. A large amount of charcoal is also used in the production of crystalline silicon, but the charcoal used for the production of crystalline silicon should not contain raw charcoal heads and excessive dust. All steel products that require high hardness and wear resistance on the surface and good toughness in the center must be carburized. The carbon-containing mixture used to carburize steel products is called carburizing agent. Machine-made charcoal is used as raw material.
Then add a certain amount of contact agent to make carburizing agent. Machine-made charcoal is the raw material for the manufacture of carbon disulfide. The charcoal used to manufacture carbon disulfide should be hard, bulky, low in ash and moisture, and high in fixed carbon.
Machine-made charcoal has the characteristics of being easy to burn, no smoke and dust, and high calorific value. The market price is about 1.4 yuan/kg. It is suitable for industrial production, catering industry and home heating. The process flow includes raw material crushing and drying, rod making, carbonization treatment, etc.