Study on optimization of coal slime flotation system in Datun Coal Preparation Plant
The diagnosis and inspection results of fine coal slime recovery system in Datun Coal Power Group Co.,Ltd.Coal Preparation Plant are introduced.The problems existing in the current process,such as excessive ash content of flotation clean coal,low ash content of flotation tailings and complex flowsheet are analyzed.An analysis was conducted on the operational effectiveness of the flotation process under normal production and increased ash content of the first flotation tail coal.Based on research on the particle size,density,and floatability of coal slime,a new idea for the fine coal slime recovery system transformation was proposed,which involves"all the first flotation clean coal undergo secondary flotation".A secondary flotation process transformation plan of"flotation machine+flotation column"was designed,which can ensure that the final flotation clean coal ash content is qualified while improving the clean coal recovery rate.
coal preparation plantcoal slimeflotationhigh ash fine slimeoptimization
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