烟煤浮选降灰试验研究  

Experimental study on reduction of ash of bituminous coal using flotation process

作　　者：翟忠标[1,2,3] 牟兴兵 刘俊场 彭学斌 陈景 谢刚[2,3] ZHAI Zhongbiao;MOU Xingbing;LIU Junchang;PENG Xuebin;CHEN Jing;XIE Gang(Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology,Kunming 650093,China;State Key Laboratory of Pressure Hydrometallurgical Technology of Associated Nonferrous Metal Resources,Kunming 650503,China;Kunming Metallurgical Research Institute Co.Ltd.,Kunming 650503,China)

机构地区：[1]昆明理工大学冶金与能源工程学院,云南昆明650093 [2]共伴生有色金属资源加压湿法冶金技术国家重点实验室,云南昆明650503 [3]昆明冶金研究院有限公司,云南昆明650503

出　　处：《选煤技术》2020年第5期21-25,共5页Coal Preparation Technology

基　　金：云南省科技人才和平台计划项目(2019HB081);科技人才和平台计划——科技领军人才培养项目(2017HA012)。

摘　　要：为了降低云南富源烟煤灰分,采用浮选方法,对烟煤粒度、煤浆浓度、浮选流程、捕收剂用量、起泡剂用量以及抑制剂用量等因素进行了研究。结果表明:对于<0.075 mm粒级占80%的烟煤,在煤浆浓度为100 g/L、捕收剂(柴油)用量为300 g/t、起泡剂(松醇油)用量为100 g/t、抑制剂水玻璃用量为2000 g/t的条件下,采用一次粗选两次精选的浮选流程,精煤产率达42.16%,灰分可降至3.11%。For reducing the ash of Fuyuan bituminous coal of Yunnan Province,a study is made on such factors as feed size,pulp density,flotation process flowsheet,and dosages of collector,frother and inhibitor.Study result shows that for treating a feed with the<0.075 mm size accounting for 80%by applying the one roughing plus two cleaning processes at a feed pulp density of 100 g/L and dosages of collector(diesel oil),frother(terpineol)and inhibitor(sodium silicate)of respectively 300 g/t,100 g/t and 2000 g/t,a concentrate product with a yield of 42.16%and an ash as low as 3.11%can be obtained.

关 键 词：烟煤浮选 浮选流程 煤浆浓度 捕收剂用量 一次粗选两次精选 

分 类 号：TD943[矿业工程—选矿]