B - Operations – Transporting – 02 – C
Patent
B - Operations, Transporting
02
C
B02C 1/04 (2006.01) B02C 1/00 (2006.01) B02C 1/10 (2006.01) E02F 3/40 (2006.01) E02F 3/96 (2006.01)
Patent
CA 2409584
A comminution machine is provided for comminuting crushable materials such as rock, masonry and reinforced concrete, or shreddable materials such as motor vehicle tyres. The machine comprises a hopper having an open top (11) tapering to a narrower discharge opening (12). The hopper has a curved anvil wall (6) and a curved and reciprocally pivotable crushing jaw (7). Movement of the crushing jaw (7) is controlled by a two-way hydraulic ram (9). The shape of the crushing jaw (7) is generally that of a spiral away from its pivotal axis in a direction from the bottom to the top of the hopper, with the result that reciprocation of the crushing jaw (7) imparts a mixture of compressive and shear forces on comminutable material in the hopper, the sheer forces increasing in proportion nearer to the discharge opening of the hopper.
L'invention porte sur une machine de fragmentation de matériaux concassables tels que la roche, le béton de maçonnerie et béton armé ou des matériaux déchiquetables tels que des pneus de véhicules à moteur. La machine comprend une trémie pourvue d'une partie supérieure ouverte (11) s'évasant vers un orifice d'évacuation plus étroit (12). La trémie comporte une paroi d'enclume courbe (6) et une mâchoire de broyage (7) courbe et à mouvement pivotant alternatif. Le déplacement de la mâchoire de broyage (7) est commandé par un bélier hydraulique bidirectionnel (9). La forme de la mâchoire de broyage (7) est généralement celle d'une spirale éloignée de son axe pivotant, de bas en haut de la trémie, le mouvement alternatif de la mâchoire de broyage (7) conférant un mélange de forces compressives et de cisaillement sur le matériau à broyer se trouvant dans la trémie, et les forces de cisaillement augmentant proportionnellement plus près de l'orifice d'évacuation de la trémie.
Crabbe Robert Anthony
Fetherstonhaugh & Co.
LandOfFree
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