Study on the mechanism and improvement of floating ability of Qinxin oxidized coal
It discusses the flotation mechanism of oxidized coal by taking the oxidized coal flotation feed ofQinxin coal preparation plant as the research object,through the analysis of industrial properties,surface content functional groups and surface hydrophilicity.The results show that compared with the non-oxidized coal flotation feed,the oxidized coal flotation feed has increased ash,moisture,fixed carbon content,increased surface hydrophilicity and decreased flotation efficiency.Qinxin Coal preparation Plant carried out industrial commissioning of the flotation system by optimizing the oxidized coal flotation reagent system.The commissioning results showed that compared with the oxidized coal flotation effect under the original reagent system,the tail coal ash content increased by 31.76％,the cleaned coal ash content decreased by 1.14％,and the refined coal yield increased by 21.61％.The optimized flotation reagent system can obviously improve the flotation effect of oxidized coal and increase the economic benefit of coal preparation plant.
NETL
NSTL
万方数据
维普
