Staggered and inter-impinging self-cleaning screening device

A staggered and inter-impinging self-cleaning screening device, comprising a plurality of staggered and inter-impinging rotating screening mechanisms arranged in a tilted downward conveying direction, movement generating mechanisms, and pulse warning automatic cleaning mechanisms, wherein:

• the staggered and inter-impinging rotating screening mechanisms are adjacently arranged or arranged every other shaft, the staggered inter-impinging rotating screening mechanism includes one, two or more sets of adjacent rotating shaft assemblies arranged in a staggered manner;
• the rotating shaft assembly comprises a rotating shaft and self-cleaning screen devices equidistantly coupled and installed on the outer surface of the rotating shaft;
• the rotating shaft is constructed into a hollow structure, and radial spray-holes are arranged in the axial direction of the rotating shaft, where the outlets of the spray-holes are close adjacent to both sides of the self-cleaning screen device so as to spray the self-cleaning screen device;
• the self-cleaning screen device comprises rotating shaft screens and cleaning teeth sets;
• the rotating shaft screens are constructed into a circular disc shape and installed equidistantly on the rotating shaft;
• the cleaning teeth sets are symmetrically distributed on both sides of the rotating shaft screens, where the coaxial cleaning teeth sets are arranged in phase,
• wherein the movement generating mechanisms are installed at both ends of the rotating shaft assembly and configured to move the rotating shaft axially.