刘家口选煤厂弛张筛3 mm干法脱粉效果分析  

Analysis of the effects obtained in dry screening of the coal at a size of 3 mm with flip-flop screen at Liujiakou Coal Preparation Plant

作　　者：陈开玲 CHEN Kailing(Shanxi China Coal Dongpo Coal Co. Ltd., Shuozhou 036002, China)

机构地区：[1]山西中煤东坡煤业有限公司,山西朔州036002

出　　处：《选煤技术》2020年第6期45-48,共4页Coal Preparation Technology

基　　金：中国中煤能源集团有限公司专项资助项目(0064A0214A75)。

摘　　要：弛张筛以其独特的结构具有极强的抛料、防粘附、防堵孔的能力,适合在细粒煤的筛分作业中应用。为了系统评价弛张筛3 mm干法脱粉技术的应用效果,采用筛分设备工艺性能评价方法,对刘家口选煤厂弛张筛3 mm干法脱粉效果进行了评价。结果表明:在外水不超过6%的条件下,弛张筛3 mm干法脱粉筛分效率达到70%以上,可完全满足煤炭深度筛分和分质分级的需要。Flip-flop screen can work with ultrahigh material throwing,anti-clogging and adhesion-proof capabilities thanks to its unique structural features,and is especially suitable for use in fine material screening process.A systematic assessment of the performance of the flip-flop screen in dry screening of coal at a size of 3 mm at Liujiakou Coal Preparation Plant is made according to the national standard Coal Sizing Equipment Performance Evaluation Method.Result of evaluation shows that when used for treating a feed having a surface moisture not exceeding 6%,the screen can work with a screening efficiency of over 70%,well demonstrating its ability to fully meet the requirements for making coal in-depth upgrading,quality grading and sizing operations.

关 键 词：干法筛分 弛张筛 3 mm干法脱粉 筛分效率 

分 类 号：TD941.5[矿业工程—选矿] TD452