The technological property of the coking coal used in Liangang Corporation is discussed.

The indexes for evaluating the quality of feed coal for coking which purchased form outside are rightly determinated.

Study on the technology of decreasing ash and sulfur in coking coal concentrate by deep-cleaning;

Reserves,production,and utilization of main coking coal mining areas in China;

The discussion of mechanical sampling for coking coal;

This thesis focuses on the frontier research of coal blending for coking field, and build up the optimization model of coal blending ratio by using the mixed zero-one type integer progra.

During last 58 years,due to the technical progress in coal blending and coking by step by step,made the coke quality has been improved year by year depend on the smelting of a large blast furnace and height coal injection rate.