RESILIENT SIEVING SURFACE Russian patent published in 1995 - IPC

FIELD: mining mechanical engineering. SUBSTANCE: sieving surface has a set of resilient sieves whose edges are fixed with those of adjacent sieves on the beams of rattle by means of alternating cylindrical protrusions with cone head and hollows made on the sieve edges. In this case the hollow in the adjacent sieve equal in parameters to the cone head of the protrusion on the edge of one sieve corresponds to this head. In each beam through holes are made, they correspond to the protrusion diameter. The plank with cone pins placed as a cantilever to it and as a mirror to the cylindrical protrusions is fixed on the lower edge of the beam. The pins enter the corresponding blind holes on the inoperative surface of the sieve edge. EFFECT: enhanced efficiency. 2 dwg