On fully-mechanized long-wall face coal mining technology for thin and rather-thin middle-thick coal seam

Fully mechanized long-wall face coal mining of thin and thinner middle-thick coal seam is widely used in China, this paper discussed the application actuality of twist drill mining machine mining method, fully mechanized shearer mining machine mining method and slicer mechanical mining method, analyzed its advantage and shortcoming, get its application conditions, the results can supply references to the mines that mechanical mining thin to thinner middle-thick coal seams.