Study Of Crushing Regulation And Experiment On Selective Crushing And Separation Of Coal And Gangue

As a waste, the harm of waste rock had been paid a great attention. On the conduct of the government policy, scientists in some departments had done lots of researches, Separation technique of coal and gangue on the ground has been researched for a long time, and a great progress has also been made. But by now, there are no countries study the technique which separates coal and gangue directly in the colliery.Made the analysis to the physics mechanics characteristic of the coal and gangue in the topic, and found a way to separate irregular waste rock from charcoal. By researching the strength of the irregular rock, got a strength equation for it and decided the feasibility by contrasting the regular assaying with the irregular assaying. Later on the tensile broken was advised to be chosen. In the pressive strength, shearing strength, bending strength, tensile strength of the mineral, the tensile strength is the weakest. The article analyzed the characteristic of the coal and gangue when they were destructed, it also gave the whole course of the tensile broken.