A new high-efficiency dewatering process for use in association with Teetered-bed separator

In order to solve the problems concerning the complexity of coarse slime predewatering and separation process, high operating cost, presence of excessive amount of coarser particles in screen underflow, and instability of product moisture, a new dewatering process is proposed for use in association with TBS, according to the features of the technological coal cleaning processes currently applied by the plant. In the new process, the overflow of TBS is treated by electromagnetic high-frequency vibrating screen, and the overflow of the latter goes directly into dewatering centrifuge. A favorable techno-economical result has been yielded through the use of the process because of simplification of dewatering process and reduction of number of equipment for use and hence, capital cost.