Abstract:
In coal mining system, working face has a large number of fully mechanized mining machinery and equipment, which is large in quantity and volume.The traditional stop-mining and withdrawal technology has some problems such as slow withdrawal speed, low efficiency and big security risks, which seriously restricts the efficiency of moving and equipment connection.Therefore, taking the intelligent fully-mechanized mining face of Hanjiawan Coal mine as an example, a programmed hydraulic support shifting equipment and support recovery remote control device are proposed and studied to replace the traditional manual valve operation support action, and the staff can remotely control the hydraulic support for rapid recovery, so as to carry out technical innovation on the traditional recovery process, and ensure the recovery efficiency while eliminating safety hazards as much as possible.The field application results show that: with the program-controlled hydraulic support transfer equipment and intelligent remote control system, hydraulic support single set's withdrawal efficiency is increased by 35%,and there is no safety risk, completing the hydraulic support withdrawal from mechanization to intelligent transformation, reducing the labor intensity of workers, and improving the intelligent level of the withdrawal process.