ANALYSIS OF EFFICIENCY OF RECOVERING AND RE-INSTALLATION OF LONGWALL EQUIPMENT IN THE CONDITIONS OF THE KUZNETSK COAL BASIN

The main objective of the executed researches was assessment of efficiency of recovering and equipment re-installation of longwalls at the applied technological schemes of mining of flat coal seams of the Kuznetsk coal basin. The analysis of the actual duration of performance of dismantling and installation works in mines of the SUEK Kuzbass company is made. It is shown that very poor state of a roof of recovery rooms is a basic reason for increase in duration of equipment downtimes. Recommendations about increase in roof stability of recovery rooms, a longwall erection are made. Economic disbenefit assessment from outages of the highperformance equipment of longwalls is executed.