王坡选煤厂降低介耗措施的探讨

Reduction measures of medium consumption of Wangpo coal preparation plant

为降低选煤厂介耗,介绍了王坡选煤厂的介质循环系统,并从介质质量、原煤粒度组成、脱介筛运行工况、喷水效果、磁选机回收效率等方面分别阐述了王坡选煤厂降低介耗的具体措施。针对王坡选煤厂改扩建后介耗偏高的问题进行分析,并在管理上加强重介质密度和煤质的监控力度来减少介质管理流失,在工艺上增加一小型的中煤脱介筛加强介质回收来降低介质技术流失。

In order to reduce medium consumption of Wangpo coal preparation plant,the medium circulation system was introduced. The reduction measures of medium consumption were provided from the aspects of medium quality,raw coal size composition,spraying screen operation,spraying condition,magnetic separator efficiency. The medium loss became less by strengthening dense medium density and coal properties management. Furthermore,an added small middlings spraying screen was conducive to medium recovery.