【摘要】 针对某发电厂排放的粉煤灰烧失量较高不能直接利用的现状,分别用浮选机和旋流-静态微泡浮选柱对其进行了脱碳的浮选试验研究,并通过系统的浮选条件试验,确定了最佳的浮选操作条件。经一次粗选开路流程分选,浮选机精矿的碳回收率为85.96%,尾矿烧失量为2.25%;浮选柱精矿的碳回收率达到了92.64%,尾矿烧失量降至1.14%。更多还原

【Abstract】 To counter current condition that a power plant in Guangdong discharged high carbon fly ash that can’t be utilized, respectively Flotation machine and Flotation column experiments on decarbonization from fly ash were done. By systemic flotation condition experiments, the optimal Flotation operation conditions have been determined. Based on one open roughing circuit, Flotation cell can obtain the result that concentrate with carbon recovery 85.96% and tailing with loss on ignition(LOI) 2.25%; Flotation column can obtain the result that concentrate with carbon recovery 92.64% and tailing with LOI 1.14%. This research provides a new approach for the comprehensive utilization of fly ash.更多还原