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选煤厂降低介耗的实用途径 被引量:11

Practical way of reducing medium consumption in coal preparation plant
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摘要 分析了兖州煤业股份有限公司鲍店煤矿选煤中心重介选煤生产介质损耗高的主要影响因素,从技术损耗方面和管理损耗方面进行了全面的分析,并针对如何降耗的具体方法和防治措施进行了探讨,具体措施包括确保布料箱分料均匀、控制脱介筛入料量、控制好弧形筛入料点、及时翻转更换弧形筛、改造脱介筛喷水角度和高度、稳定磁选机入料、定期调整磁偏角位置、稳定磁选机液位、控制重介分流、增加磁选机喷水装置、确保介质粉的质量、合理控制介质液密度等。通过对选煤中心重介选煤进行降耗处理后,鲍店煤矿选煤厂重介选煤的介质粉消耗由原来的3.2 kg/t降到了现在的1.81 kg/t,每月可节约介质成本约3万余元。 This paper analyzed the main influencing factors of high medium loss in heavy medium coal preparation center of Baodian Mine,Yanzhou Coal Mining Company,made a comprehensive analysis from the aspects of technical loss and management loss,and discussed the specific methods and prevention measures for reducing medium consumption. Specific measures included ensuring that cloth box medium distribute material evenly,controlling the amount of screening,controlling the arc screen feeding point,flipping arc sieve timely,improving the angle and height of medium sieve spray,stabilizing the material into magnetic separator,adjusting the magnetic declination location on a regular basis,stabilizing the liquid level of magnetic separator,controlling medium water diversion,increasing the magnetic separator device,ensuring the quality of medium powder,controlling dielectric fluid density reasonably.After reducing the consumption of heavy medium coal preparation center,the heavy medium powder consumption was reduced from 3.2 kg/t to 1.81 kg/t and the monthly cost can be saved about 30000 yuan.
作者 郭翠荣 Guo Cuirong(Coal Preparation Center of Baodian Mine,Yanzhou Coal Mining Company Limited,Zoucheng,Shandong 273513,China)
出处 《中国煤炭》 2019年第4期96-98,104,共4页 China Coal
关键词 重介质选煤 影响因素 降低介耗 heavy medium coal preparation influencing factor medium consumption reduction
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