抚顺东露天矿提高原煤回采率方法

Method of improving the recovery rate of raw coal in Fushun East Open-pit Mine

抚顺东露天矿煤层由若干个薄煤层组成,煤层夹矸量大。在开采过程中,不易分选,煤岩易混杂,混入岩过多直接影响销售价格。如采出含煤系数低的洗料过多,则增加选煤成本。为此,提高原煤回采率,可多采出原煤,减少入选洗料,可提高煤炭利润。

Fushun East Open-pit Mine is composed of a plurality of thin coal seams, and has large amount of coal gangue. In the mining process, it is not easy to separate, coal and rock easily mixed, too much rock directly affect the sales price. If the mining coal with low coefficient has too much coal washing, it increases the cost of coal preparation. Therefore, improving the coal recovery rate can reduce coal mining and increase coal profits.