Enhancing Efficiency of Steel Prop Recovery Processes in Unused Mining Excavation

In the field of underground mining, the steel props within the coal face are frequently not fully salvaged, resulting in a low recovery rate. At the present time, approximately 60% of coal mining is conducted through underground methods. Consequently, there is a growing number of mechanical roof supports that utilize steel props. Furthermore, as the raw materials for the manufacture of these props are becoming increasingly scarce, it is of paramount importance to recover steel supports from unused mine shafts and those situated along coal seams. However, the recovery process is beset with numerous challenges due to the complex geological conditions and the arduous and perilous nature of the work, which has resulted in a dearth of attention to prop recovery in these areas during the coal mining process. Phase 2 software from Rock science was employed to ascertain the impact of the dismantling equipment on the mining excavation. Therefore, this paper presents a technical solution to enhance the efficiency of the steel prop recovery process in these shafts by utilizing a combination of hydraulic and mechanical structures to form a cohesive equipment setup for effective recovery.