Abstract: The coal preparation plants currently tend to use large-sized equipment. To conform to the tendency, the large LWZ1600×2400B screen-bowl centrifuge is introduced for the first time at a coking coal preparation plant for coarse clean slime dewatering and recovery, and the dewatering and ash reduction efficiencies of the centrifuge are assessed by testing with a stand-alone centrifuge on site. Test results show that the centrifuge can work with a highest capacity of 128 t/h with the product moisture, dewatering efficiency and ash reduction efficiency being 14.80%, 70.46% and 9.99%, respectively, which are all up to the designed indicators.