古汉山矿选煤厂末煤重介分选系统的优化改造  

Optimization and transformation of the coal heavy agglomecation system of Guhanshan Mining Coal Preparation Plant

作　　者：王怀 WANG Huai(Coal Quality Center,Jiaozuo Coal Industry(Group)Co.,Ltd.,Jiaozuo,Henan 454001,China)

机构地区：[1]焦作煤业(集团)有限责任公司煤质中心,河南焦作454001

出　　处：《煤炭加工与综合利用》2024年第5期50-54,共5页Coal Processing & Comprehensive Utilization

摘　　要：阐述了古汉山矿选煤厂存在末煤重介系统生产能力不足、介耗高、缺少粗煤泥分选环节、浮选精煤水分偏高等问题。通过对选煤工艺分析研究,结合煤质试验、生产技术检查和生产现场实际情况,提出并实施了脱泥入洗改造、增加粗煤泥分选工艺、优化配置振动弧形筛、磁选机、空气穿流压滤机等关键设备的改造方案。现场实践表明,优化改造后的工艺系统灵活可靠、运行稳定,对原煤和市场适应性强,取得了洗选效率提高、豫焦精粒产率提高、洗精煤产率提高、煤泥及矸石产率降低、介耗降低、产品综合售价提升、洗煤加工费降低、经济效益增加的多重效果。It describes the problems of insufficient production capacity,high medium consumption,lack of coarse slime separation and high water content of refined coal flotation in coal preparation plant of Guhanshan Mine.Through the analysis and research of coal preparation technology,combined with coal quality test,production technology inspection and actual production site,the optimization and reform scheme of desliming into washing,increasing coarse coal slime separation process,optimizing the configuration of key equipment such as vibrating arc screen,magnetic separator and air filter press are put forward and implemented.Field practice shows that the optimized process system is flexible,reliable,stable,and has strong adaptability to raw coal and market.It has achieved multiple effects such as improving washing efficiency,improving the yield of fine particles,improving the yield of washed coal,reducing the yield of slime and gangue,reducing the consumption,increasing the comprehensive selling price of products,reducing the processing cost of coal washing and increasing economic benefits.

关 键 词：选煤厂 末煤重介 脱泥 粗煤泥分选 浮选 产品结构优化 

分 类 号：TD942.7[矿业工程—选矿]