Research on coal shearer speed affected to automation of fully mechanized longwall mining face

With the background of the automatic system followed the coal shearer in the coal mining face and in application of electric and hydraulic control technology,the paper discussed the travel speed of the coal shearer in the coal production affected to the face automatic advancing with the electric and hydraulic control system.Under the conditions to meet the present mine safety regulations,the boundary condition was considered.A development study on the domestic made control system followed with the coal shearer was made with the electric and hydraulic control sytem.