永荣矿务局发电厂成功地利用劣质煤—煤矸石发电,十余年“吃”掉煤矸石—劣质煤160万t,上缴利润3000多万元。 过去,该厂燃用优质原煤,由于设备陈旧、热效率低、煤耗高,企业连年亏损。加之每年9000多吨炉渣倾泄下河.堵塞河道,使清 Yongrong Mining Bureau power plant successfully using inferior coal - gangue power generation, more than ten years, “eat” out of gangue - poor quality coal 1.6 million t, turned over profits of more than 3000 million. In the past, the plant burned high-quality raw coal, which suffered losses year after year due to outdated equipment, low thermal efficiency and high coal consumption. Coupled with the annual dumping of more than 9000 tons of slag under the river