厂家现货供应无极绳绞车梭车煤矿设备

With large-scale extensive mining, the coal resources suitable for longwall mining are decreasing day by day, and the coal reserves such as residual coal pillars, residual coal mining areas where longwall cannot be arranged, irregular blocks and the like after longwall mining are increasing year by year, and the amount of "three times" coal pressing is also very large (collectively referred to as coal mining methods under buildings, railways and water bodies). According to the data, every long-wall working face will leave a coal pillar of 20 ~ 50m. 98 state-owned key coal mines and 474 production mines in the country basically adopt long-wall mining. About a large amount of coal will be mined every year, leaving thousands of coal pillars behind. On the other hand, the normal longwall mining technology cannot be used to recover coal at the edge of the coalfield, near small geological structures and under the slope of open-pit coal mines. In order to improve the recovery rate of coal, recovery must be carried out.

With the continuous improvement and perfection of short-wall mechanized mining technology, supporting coal loading and transporting equipment came into being. However, the short-wall mechanized mining is more difficult than the long-arm mining, and the continuous mining machine/fully mechanized mining machine often withdraws support and turns around frequently due to the control of empty top distance or double-lane tunneling and other factors, which makes the conventional belt conveyor unable to meet the production requirements. In order to meet the particularity of short-wall mechanized mining technology, reduce labor intensity and load coal together