Mine grid application technology in coal mine face moving and withdrawing

Install hold hoop, winch, hanging pulley 1~2 days before laying the mesh; at first, check whether direction of the mesh into the working face is right or not when transport it and make sure that the mesh could be spread out in the direction of supports’ sides; before paving, at 100mm ~200mm from the front end of each group of supports, insert a bolt, then press the steel frame on; before spread the mesh, manual wench’s free end go through the bottom of the mesh and hang the steel string to the bolt on the roof; cut off the binding mesh belt by shears, then spread the folding part out, and lift up the mesh edge by manual power or single prop to fix with bolts; then connect mesh edge with steel frame by iron wire at every 300mm intervals.

 After spreading, use manual winch to hang the mesh to the below of front frame, when cutting coal, pull the frame one time after cutting the length of a machine body; before pull the frame, put down the mesh, and ram even-numbered supporting face guard till roof guard to support the mesh; next pull odd-numbered supports, after pull them all, withdraw the even-numbered supporting face guard one after another, then move the machine. Following this method spread mesh to the roof guard in the whole working face.