Patent ID: 7905437
Filing Date: 2011-03-15
Classification: B02C

Abstract:
1. A waste shredder ( 1 ), characterised in that it comprises at least one supporting structure ( 12 ) which carries a loading chamber ( 3 ), at least two rotors ( 4 ) placed in seats formed in the bottom wall of the loading chamber ( 3 ) and a movable hopper ( 2 ), sliding above the loading chamber ( 3 ) and provided with a reciprocating translational movement, which has two end walls (B, B′) and which carries a plurality of stiff vanes ( 5 ) placed in the spaces between said rotors ( 4 ), the end walls (B, B′) of the hopper ( 2 ) and the vanes ( 5 ) protruding downwards until they skim the bottom of the loading chamber ( 3 ) to press the material ( 8 ) to be shredded against the rotors ( 4 ), which rotate in the opposite direction to the translational movement of the hopper ( 2 ).