The dewatering screen adopts two-electrode self-synchronization technology, a universal eccentric block and an adjustable amplitude vibrator. Mainly composed of screen box, vibration exciter, support system and motor. Two unconnected vibrators are driven by the tape coupling shaft to perform synchronous reverse operation. The centrifugal forces generated by the two sets of eccentric mass are superimposed along the component of the vibration direction, and reverse centrifugally canceled, thereby forming a single excitation vibration along the vibration direction. , make the screen box as a reciprocating linear motion.