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陈四楼煤矿是设计生产能力为2 240万t/a的现代化特大型矿井,经过技术改造后,2008年生产标煤达438万t。现主要开采的煤层为二_2煤。由于地质条件复杂,断层构造较多,煤层夹矸现象比较严重,给选煤及销售造成较大的困难,商品煤回收率低,且影响售价。原煤生产中实行煤矸分流是降低灰分,提高原煤发热量的主要措施。2008年3月,该矿南翼集中强力带式输送机投入运行后,南11采区、南13采区和南15采区的原煤运输均经过南翼集中强力带式输送机进入南11煤仓,再转入南翼主煤流系统。这些采区采面正常生产时,
Chen Silou Coal Mine is a modernized large-scale mine with a designed production capacity of 22.4 million t / a. After technological transformation, it produced 4.38 million t of standard coal in 2008. Now the main mining of coal is two _2 coal. Due to the complicated geological conditions and the fault structure, the phenomenon of sequestering the coal seams is more serious, which causes great difficulties for the coal preparation and sale. The recovery rate of commercial coal is low and the selling price is affected. The implementation of coal gangue shunting in the production of coal ash is to reduce the main measures to improve the calorific value of raw coal. In March 2008, after the concentrated belt conveyor at the south wing of the mine was put into operation, the coal transportation in the No.11 mining area, the southern 13 mining area and the southern 15 mining area all went through the concentrated concentrated belt conveyor on the south wing into the south 11 coal Warehouse, and then transferred to the southern main coal flow system. When these mining areas adopt normal production,