Abstract: According to the document spirit of "three excellent,three reduction and three improvement" and guidance principle of safe and efficient production of Henan Energy Group,combined with the actual situation of the 35 and 37 mining areas,through scheme selection,the optimal optimization consolidation scheme of mining area is determined,so as to optimize the layout of working face of three sections.After the layout of the production system,a set of production system is shared,large quantity of roadway excavation engineering is reduced.Floor rock concentration roadway cannot be set,the gateway of coal seam excavation working face can be entered directly,the layout of roadway of mining area is optimized,the lower roadway of working face can be excavated directly,the series ventilation problem is solved effectively.When preparing the coal mining face,three working face can be reduced,the installation and removal work of three working face can be eliminated.The triangle coal in the middle area can be recovered when the working face is pushed from the west wing to the east wing,the working face coal recovery rate is improved,the mine production is increased,about 3 million yuan economic benefits can be increased of single working face.Ideal benefits is obtained by the optimization of production system,it can be used to 33 and 36 mining areas in Yiluo Coal Company,so as to realize the goal of saving cost,increasing production and efficiency and intensive production.

Key words: Working face with large dip angle, Layout optimization of production system, Economic benefit