What is called ` ` lean coal gas coal
Coke coal refining the transverse crack, high porosity, the root of the bee coke coke, fragile, must fit into the coking gas coal, lean coal and so to improve the quality of coke. The bond strength of coal is very strong, weak bonding capacity of coal after refining coal collocation with coal for coking coal the mother said fertilizer is important. Coal for coking coal group in the coal blending, the coke melting is good, so as to improve the abrasion resistance of coke, and with poor adherence of coal or lean agent to create conditions.
The degree of coalification, secondary bond strong name. Is a bituminous coal for coking coal. The dry ash free volatile Vdaf>10% ~ 37%, glial layer maximum thickness of y>25 mm. The volatile coal is generally higher. The gelatinous layer is thicker. Strong adhesion, heat generated when a large number of glial, generation separate coking coke, melting resistance, wear resistance, so the coking coal.
Chinese Name: fat English Name: fat coal definition: medium metamorphic bituminous coal. Coking, coke can generate good melting properties, but there are many transverse cracks, the root part of bee coke coke. Application of coal science and technology disciplines: (a subject); coal processing and utilization (two subjects); analysis coal chemical and coal (three subjects) announced approval of the above content by CNCTST
