老石旦选煤厂技术改造与经济效益分析

Analysis on Technical Reconstruction and Economic Benefit of Laoshidan Coal Preparation Plant

针对神华乌海能源有限责任公司老石旦选煤厂选煤系统存在的问题,制定了技术改造方案并实施,解决了老石旦选煤厂跳汰机矸石带煤量过高,重介系统煤泥回收跑粗,浮选系统存在药耗高、能力不足、尾煤泡沫多等问题。经实际生产运行,实现了清水选煤,降低了精煤水分,提高精煤产率0.5%,实现了优质高效生产,取得了显著经济效益。

According to the problems existed in the coal preparation system of Laoshidan Coal Preparation Plant, Shenhua Wuhai Energy Company Ltd. , a technical reconstruction plan was prepared and implemented. The coal rejects with too many coal from the jig, coarse slime running from the slime recovery of the heave medium system, high reagent consumption of the floatation system, insufficient capacity, reagent lagged behind foam tail coal treatment capacity and other problems in Laoshidan Coal Preparation Plant were solved. With the actual production operated, a clean water preparation was realized, the moisture content of the clean coal was reduced, the treatment capacity per hour was increased by 30t, the clean coal production rate was improved by 0. 5% , the quality and high efficient production was realized and the obvious economic benefits were obtained.