榆林某动力煤选煤厂煤泥浮选可行性分析  

Feasibility Analysis of Slime Flotation at a Steam Coal Preparation Plant in Yulin

作　　者：靳松[1] Jin Song(Department of Energy and Security Engineering,Changzhi Vocational and Technical College,Changzhi Shanxi 046000,China)

机构地区：[1]长治职业技术学院能源与安全工程系,山西长治046000

出　　处：《山西化工》2025年第1期162-163,177,共3页Shanxi Chemical Industry

摘　　要：为探究榆林某动力煤选煤厂煤泥浮选可行性,采取该厂分级旋流器溢流作为研究对象,选用常规煤泥浮选捕收剂煤油、高效捕收剂纳尔科药剂以及微乳液捕收剂进行了实验室浮选试验。结果表明三种浮选药剂中,纳尔科药剂浮选效果最好,在用量2000 g/t时,精煤灰分质量分数可降至12.16%,产率可达67.18%,精煤可燃体回收率高达到89.60%。煤泥浮选速度试验表明,刮泡时间3 min内可完成浮选过程。该选煤厂增加浮选系统后,不考虑固定投资,每年可增加经济效益约6354万元。In order to explore the feasibility of slime in a steam coal preparation plant in Yulin,the overflow of the classification cyclone in the plant was used as the research object,in this paper,kerosene,Narco and microemulsion collectors were used to perform flotation experiments in laboratory.The results show that Narco has the best flotation effect,the ash content of the flotation concentrate can be reduced to 12.16%,the yield can reach 67.18%,and combustible recovery rate of the flotation concentrate can reach 89.60% at the dosage of 2000 g/t.The floatation rate test of slime shows that the floatation process can be completed within 3 minutes.After adding flotation system,the annual economic benefit of the coal preparation plant will increase by 63.54 million yuan without considering fixed investment.

关 键 词：动力煤 煤泥浮选 浮选药剂 经济效益 

分 类 号：TD94[矿业工程—选矿]