Abstract:
                                      Thin coal-seam mining efficiency of Ningtiaota Colliery was low.Coal plough and its equipments were put forward as countermeasure from thin coal-seam burial characteristic.Technical parameters of coal plough equipment was rationally determined and its mining ability was checked.Relative merits of mining with coal plough were analyzed from economic view.It was put forward applying coal plough in 0.9-1.7m coal-seam could realized 1.8Mt output and produce better technical and economical profit.