METHOD AND DEVICE FOR MINERALS' HIGH-DIPPING SEAMS BREAKING ESPECIALLY HIGH-DIPPING COAL SEAMS

摘要

The invention concerns the device for mining of half-edge seams of minerals of edge coals. In different levels of already made and in fact parallel horizontal cross-cuts (13), the crossing cross-cuts (13) are broken through and also the horizontal profile of the edge coal (10) following the pilots (14), as well as the sprag road (16), which connects these pilots (14) made in the place of the beginning of the excavating cycle and following the profile of underlying rock (12), are broken through instrumentally in the dip angle that is identical with the average slope of the edge coal (10). Then the machine mining complex (24), which is assembled from mining equipments (30) and which ensures the operation of the hold-up supporting, machine mining, sublevel caving and transport of the mined mineral, is established in the entry (18) that is broken through under the upper pilot (14) and ties up the sprag road (16). Also the face mining and sublevel caving is proceeded in the same old manner and the connection between the entry (18) and the upper pilot (14) is secured by the extension of the ceiling excavation and the mined material is transported by the sprag road (16) into the lower pilot (14) or into the transport equipment placed inside it. The basis of the mining device according to the invention consists in the fact that this mining device (30) contains a second hydraulic prop (44) placed between the stabilizer (50) and skid-way footing (46), as well as the transferring hole (32) made in the stabilizer (50), and the gasket (56) and the carriage under frame (62) movably placed on the skid-way footing (46) that bears the mining and transport equipment (28), which is attached to it by the lifting and lowering unit (66) formed by the lever system (64,65,68).IMAGE