简述了大屯煤电公司孔庄煤矿改扩建 (水采 )煤水提升系统 ,对系统设计采取的关键措施进行了详细论述 ,这一系统的实践取得了良好的经济和使用效果 The coal-water lifting system of the coal mine of Datang Coal Power Company, which is a reconstruction and expansion project of Kongzhuang Coal Mine, is briefly described. The key measures taken in the system design are discussed in detail. The practice of this system has achieved good economic and utility effects