charcoal

1. Metallurgical industryPreviously charcoal was used to smelt iron ore, charcoal and coke smelted pig iron, even if the chemical composition is the same, its structure and mechanical properties are still not the same. Charcoal smelting pig iron generally has a fine grain structure, casting close, no crack characteristics, pig iron with charcoal production containing less impurities, suitable for the production of high quality steel. Because charcoal has reductive, so in the metallurgical industry can be used to reduce ore smelting metal.In the production of non-ferrous metals, charcoal is commonly used as surface flux, when non-ferrous metals melt, surface flux forms a protective layer on the surface of the molten metal, so that the metal and gas medium are separated, which can reduce the splash loss of the molten metal, but also reduce the saturation of the gas in the molten substance.A large number of charcoal is also used for crystalline silicon production, the production of crystalline silicon with charcoal should not contain carbon head and too much ash.2. Manufacturing of carburizing agentAll the requirements of the surface with high hardness and wear resistance, and the center has good toughness of all steel products to carburize. Used to carburize steel products containing carbon mixture is called carburizing agent. The carburizing effect of simple charcoal is poor. Therefore, charcoal is often used as raw material, and then a certain amount of contact agent is added to make carburizing agent.3. Carbon disulfide productionCharcoal is the best raw material for manufacturing carbon disulfide. Charcoal used to make carbon disulfide should be hard, large volume, small ash and moisture content, and high fixed carbon content.It takes about 0.5 tons of charcoal to produce 1 ton of carbon disulfide.4. The suppression of charcoal bricksCharcoal transport is very inconvenient, and the use is also limited, with the suppression of charcoal brick method can make the value of small charcoal into high quality fuel. Charcoal brick has the advantages of hygroscopic and small water absorption, large proportion and high calorific value, and in the process of use has a very high mechanical strength. Calcined charcoal brick is smokeless when burning and does not produce charcoal dust. Charcoal brick can be used in metallurgy, mobile gasifier, etc.Charcoal desiccantIt is composed of several natural minerals and has a grayish white appearance. It is non-toxic and harmless. It is a degradable and environmentally friendly desiccant. Hygroscopic rate of more than 50%.