Examined by practice, the method about the working condition parameter optimization for coal plough and the calculation about friction force on plow head are feasible.
经实践检验，本文的刨煤机工况参数优化方法和刨头摩擦力计算方法是切实可行的。
2
The technics of adding face for plow face is introduced. The better solution way to reasonable mining coal resource is provided. The particularity of equipments for thin coal seam is expounded.
Based on an example from Datong Coalmines Group, the paper analyses possibility and usage of heavy plow under the conditions of thin seam coal face with Two Hard Roofs and gives out some proposals.