Solid material comminution or disintegration – Apparatus – With separation or classification of material
Patent
1984-03-08
1986-06-03
Goldberg, Howard N.
Solid material comminution or disintegration
Apparatus
With separation or classification of material
241 77, 241 78, 241 79, 241154, 241187, 241189R, 241275, B02C 1304, B02C 1309
Patent
active
045925160
ABSTRACT:
A device for breaking coal and for separating predetermined size coal particles and impurities therefrom. A supply of coal containing rock, shale and other impurities is dumped in a hopper through a top opening. A zigzag-shaped passageway extends from the top to the bottom of the hopper and has a single double action accelerator rotor or a pair of accelerator rotors mounted therein. The rotors increase the speed of the deposited materials that are moving by gravity through the passageway by striking the material and propelling it in the same direction that it was moving prior to being struck. The coal is split upon impact against splitting grates. Chutes located beneath the splitting grates receive the coal particles which pass through sized openings formed in the grates and deposit it in a collection area. The rotors each include a shaft with a plurality of radially outwardly extending blades. The materials move along inclined feed grates which extend downwardly inwardly in the passageway and which are tangent to the periphery of the rotating rotor blades which enable the coal to be accelerated without a change in direction. Oversized coal particles and impurities will drop onto a vibrating grate at the bottom of the hopper which provides a final separation for the correctly sized coal particles before discharging the remaining impurities onto a refuse pile.
REFERENCES:
patent: 1824681 (1931-09-01), O'Neil
patent: 2110850 (1938-03-01), Symons
patent: 2192606 (1940-03-01), Symons
patent: 2357843 (1944-09-01), Morrissey
patent: 2644644 (1953-07-01), West
patent: 2798674 (1957-07-01), Denning
patent: 3344999 (1967-10-01), Kessler
patent: 3934826 (1976-01-01), Graveman
Eley Timothy V.
Goldberg Howard N.
Quadracast, Inc.
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