Study on effect of high-shear pulp conditioning on fine coal flotation performance

For improving fine coal flotation performance, flotation test is made with the flotation feed of Puxian Energy Company′s Coal Preparation Plant after it goes through surface modification treatment using high-shear conditioning technology. Test result shows that flotation process is superior to conventional process in performance. At a desired ash of flotation concentrate of 10%, a pulp conditioning speed of 2 000 r/min and a conditioning time of 2 min, the yield of concentrate and recovery of combustible matters are seen to increase by about 8 percentage points and 7 percentage points, respectively, with a reduction of diesel consumption by 45 percentage points.