Power coal, referred to as power coal for short, broadly speaking, refers to all coal used for power generation for the purpose of power generation, locomotive propulsion and boiler combustion. Belonging to power coal. More than 65% of the consumption structure of thermal coal in China is used for thermal power generation; Followed by coal for building materials, accounting for about 20% of coal for power, including coal for cement; The remaining thermal coal consumption is distributed in metallurgy, chemical industry and other industries.
Coking coal, also known as "main coking coal", belongs to coking coal with strong cohesiveness and coking property, and is an indispensable basic raw material in coke production. Coking coal is an important upstream raw material for coking and steel industry. Coking coal is connected with coal, coke and steel, and occupies an important position in the industrial chain. The coking coal that can be used for transportation must be clean coal washed by coal washing plant, which has sufficient coking performance.
Coke is converted from coking coal by high temperature dry distillation in coke oven. Coke can be used as reducing agent, energy source and carbon donor for blast furnace ironmaking, cupola casting, ferroalloy smelting and nonferrous metal smelting, and can also be used for calcium carbide production, gasification and synthetic chemistry.
According to statistics, more than 90% of the world's coke production is used for blast furnace ironmaking. Metallurgical coke has become one of the essential raw materials of modern blast furnace ironmaking technology, and is known as the "basic food" of iron and steel industry.