鹤岗矿务局选煤厂多年来投入大量资金、人力、物力致力于洗水闭路循环实践，基本达到了一级洗水闭路循环标准。简要介绍该厂在洗水闭路循环实践中的做法、经验及取得的效果 Hegang Mining Bureau coal preparation plant over the years invested a lot of money, human and material resources are committed to the practice of closed-circuit washing water, basically reached a level of closed-circuit washing water standards. Brief introduction to the practice of the plant in the practice of closed loop washing water, experience and achieved results