Abstract:

Long flame coal with the grain size of less than 0.2mm, coke fine and coal tar were mixed together according to a certain proportion to prepare the binder for briquetted coal to produce metallurgical coke. 10% of No.1 coal slurry binder and 8% of No. 3 coal slurry binder were blended respectively to briquetted coal production, by which briquetted coal with higher cold strength can be obtained, the compressive strength was greater than 100N/off, the falling strength was greater than 90%, which can meet the strength requirement of briquetted coal for coke-making in the course of production, transport and charging.