Introduction
Coking coal is an indispensable raw material in the steelmaking process. Metallurgical coke is an important process material in the steelmaking process, used in blast furnaces and converter furnaces to provide heat and protect the furnace lining. In the steelmaking process, coke must be able to release more heat energy, and reduce ore and coke in the furnace and other materials into liquid hot metal. The quality of coke directly affects the production of steel. Therefore, for steelmaking, it is necessary to select and purchase suitable and qualified coking coal.
Requirements for Carbon Concentrate
Carbon concentrate is the raw material for producing baking free carbon, which contains no sulfur or other impurities, and is vital to the steelmaking process. The requirements for the carbon concentrate quality used in the blast furnace and converter furnace are as follows:
1. The quality of carbon concentrate must meet the requirements of GB2254-2006 and other state standards. Generally, it needs to be evenly distributed and have a certain strength.
2. The contents of ash and moisture in the carbon concentrate should not be too high in order to reduce the rubbish generated in the smelting process.
3. The carbon concentrate should have a certain size, and the coking time should be appropriate, in order to ensure the quality and output of steel.
4. The sulphur content of carbon concentrate should be as low as possible, and nitrides, phosphides and other harmful impurities should be less than a certain amount.
Conclusion
Coking coal and carbon concentrate are two important materials in steelmaking. Generally, good quality coking coal and carbon concentrate can ensure the stability of steelmaking and reduce the cost of steelmaking. Therefore, in order to ensure the quality of steelmaking, the choice of coking coal and carbon concentrate must meet the requirements.
