吕临能化选煤厂重介中煤再选试验研究  

Experimental Study on Re-preparation of the Middling Product from the Dense Medium Separation System of Lvlinnenghua Coal Preparation Plant

作　　者：杨亚楠 陈江涛 徐泽洋 杨梦瑶 张哲铭 王鹰 Yang Ya'nan;Chen Jiangtao;Xu Zeyang;Yang Mengyao;Zhang Zheming;Wang Ying(China University of Mining and Technology(Beijing),Beijing,100083)

机构地区：[1]中国矿业大学(北京),北京100083

出　　处：《当代化工研究》2022年第8期94-96,共3页Modern Chemical Research

基　　金：“中央高校基本科研业务费专项资金”;“中国矿业大学(北京)大学生创新训练项目”资助(项目编号:C202 003253)

摘　　要：本文对吕临能化选煤厂的重介中煤再选进行了试验研究。通过将重介中煤破碎到13mm、6mm、3mm以下进行浮沉、浮选试验,研究了不同破碎粒度上限下的物料的密度组成和浮选行为,提出了破碎到3mm以下3~0.5mm粒级重介旋流器分选、0.5~0.3mm粒级TBS分选、-0.3mm粒级浮选的工艺路线,并对实际生产的结果进行了预测,预期可使选煤厂的精煤产率增加2.22%。This experimental study is concerned to the re-preparation of the middling product from the dense medium separation system.After crushing the middling product less than 13mm,6mm and 3mm,the results of float-sink analysis and floatation test of the three materials were analyzed and investigated.A rewashing process was recommended,that is:the minenrals of 3~0.5mm would be separated by dense-medium cyclone,the minenrals of 0.5~0.3mm would be separated by teetering bed separator(TBS),the minerals below 0.3mm would be separated flotation machine.Finally,a prediction was made,that the clean coal would increase by 2.22%.

关 键 词：重介中煤 中煤再选 破碎 解离 

分 类 号：TD94[矿业工程—选矿]