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由于经高炉高温燃烧后的高温焦渣和低温焦渣灰分均在46%以下,根据分步释放实验流程,设计了一次粗选多次精选的浮选工艺流程对焦渣进行分选,通过产品掺配能回收不同灰分指标的精煤;由于0.074 mm以下粒级含量的影响,高温焦渣浮选效果好于低温焦渣。
Because of the high-temperature coke slag and low temperature coke ash after burning at high temperature are below 46%, according to the step-by-step release of the experimental process, designed a rough selection multiple flotation process to sort the coke residue, through the product Mixed coal can be recovered with different ash index; due to the effect of grain size below 0.074 mm, the flotation effect of high temperature coke slag is better than that of low temperature coke slag.