本溪选煤厂原设计能力75万吨/年,到1988年该厂的小时处理能力为150-180吨。1978年以前每年排出的尾煤水为140万吨,流失煤泥2000—2800吨,严重地污染了河流,造成公害。因此,搞好煤泥水闭路循环,是充分回收国家资源,提高企业经济效益的重要途径。 Benxi Coal Preparation Plant, the original design capacity of 750,000 tons / year, to 1988, the plant’s hour handling capacity of 150-180 tons. Before the year of 1978, 1.4 million tons of tailings water was discharged per year, and 2,000-2800 tons of slime was lost, seriously polluting the rivers and causing pollution. Therefore, to improve the closed loop of slime water is an important way to fully recover the national resources and improve the economic benefits of the enterprises.