选煤厂脱介筛喷水嘴堵塞原因分析及解决方案  

Analysis and solution for nozzle blockage in desliming screens of coal preparation plant

作　　者：刘利波 桑群 徐宏祥[2] LIU Li-bo;SANG qun;XU Hong-xiang(CHN Energy Zhungeer Energy Group Co.,Ltd.,Ordos,Inner Mogolia 010300,China;School of Chemistry and Environmental Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China)

机构地区：[1]国能准能集团有限责任公司,内蒙古鄂尔多斯010300 [2]中国矿业大学(北京)化学与环境工程学院,北京100083

出　　处：《煤炭加工与综合利用》2024年第5期32-36,共5页Coal Processing & Comprehensive Utilization

摘　　要：以准能黑岱沟选煤厂为例,对现场循环水处理工艺进行分析,并利用仿真软件模拟喷水嘴管道内部流体流动情况,进一步验证喷水嘴堵塞位置,以及堵塞时管道内部压力变化情况。在对堵塞原因分析的基础上,提出对循环水系统的改造建议,通过防止堵塞、检测堵塞和解决堵塞三步,排除循环水内部夹杂的颗粒,解决了脱介筛喷水嘴经常堵塞的问题,提高了脱介筛的脱介效率,减少了介质消耗,避免现场工人因疏通管道产生的额外工作量,推动了选煤厂智能化建设。Taking the Hei Black Dai Gou coal selection plant as an example,the on-site circulating water treatment process was analyzed,and the simulation software was used to simulate the fluid flow inside the spray nozzle pipe to further verify the blockage location of the spray nozzle and the pressure change inside the pipe during blockage.Based on the analysis of the blockage causes,suggestions were made for the transformation of the on-site circulating water system.By preventing blockage,detecting blockage and solving blockage,the particles mixed in the circulating water are eliminated,which is used to solve the problem of frequent blockage of the deashing spray nozzle.By solving the blockage problem of the spray nozzle,the deashing efficiency of the deashing screen will be improved,the consumption of the medium will be reduced,the extra workload of the site workers due to the pipe dredging will be avoided,and the intelligent construction of the coal selection plant will be promoted.

关 键 词：选煤厂 脱介筛喷水嘴 堵塞 仿真模拟 循环水处理系统 

分 类 号：TD941.3[矿业工程—选矿]