The invention discloses a
high frequency vibrating screen which comprises a screen box, a screen plate, a box type
vibration exciter and a driving
system. The screen box comprises two side plates, a plurality of transverse beams and a driving beam, the two side plates are installed on a support through springs, the lower edges of the two side plates are connected through the multiple parallel transverse beams, the upper portions of the middles of the two side plates are connected through the driving beam, the box type
vibration exciter is installed on the driving beam and is connected with thedriving
system, the screen plate is fixed to the upper portions of the transverse beams and is formed by
butt joint of a slope screen plate with a positive inclined angle and a step-shaped screen plate with a negative inclined angle, the slope screen plate is located on the back portion of the step-shaped screen plate, and a feeding baffle is arranged at the back end of the slope screen plate. According to the
high frequency vibrating screen, the staged type screen plate formed by the slope screen plate and the step-shaped screen plate is adopted, the forced synchronization type box type
vibration exciter is used as a vibration exciting source,
coal slime scattering and layering and further
dewatering can be promoted, material stacking and water running can be effectively prevented, the
dewatering effect of the slime water is improved, the
fault rate is low, and the screen
machine running reliability is greatly improved.