Abstract: To solve the problem of gliding and inclining of the devices and the side falling, the HuaShan Coal Mine uses the reset device of hydraulic support , the non-skid device of conveyor, the defense of the face and the slow transition face arrangement, which solve the stability of the equipments and safety protection of workers. The practice results show that the devices stability controlled well and the production efficiency enhanced.

Key words: large mining height and large angle, hydraulic support, reset device, non-skid device