Recovery Condition Analysis of ZY5000-18/38 Type Hydraulic Support at Fully Mechanized Coal Mining Face

Based on the recovery field practice of hydraulic support at Ji_16.17-23120 fully mechanized coal face of No.4 Mine of Pingdingshan Tian'an Coal Mining Limited Company, we carry out the analysis of ZY5000-18/38 type hydraulic support recovery condition, give specific criteria of advanced height, width of hydraulic support recovery and making bell mouth at cutting hole according to the models. The workload of recovery preparation condition of fully mechanized mining equipment is reduced, and the high-efficiency and recycling of the hydraulic support is ensured.