Abstract: To solve the problems of high maintenance costs and long supply cycle of spares about the VM1400 horizontal vibrating centrifuge,the EVM1400 horizontal vibrating discharge centrifuge is chosen to dewater the small clean coal 13~0. 5 mm in place of it. This article introduces the primary structure,working principle,technical feature and technical parameters of this EVM 1400 centrifuge,and analyzes its application situation in Dingji mine coal preparation plant. The application shows that the EVM1400 horizontal vibrating discharge centrifuge has the characteristics of large treatment capacity,good dewatering performance,small amount of maintenance and high reliability,with some advantages in dewatering the 13~0. 5 mm small clean coal.