Paper material refining apparatus

Details Paper material refining apparatus Paper material refining apparatus

1990-08-31

1991-09-17

Rosenbaum, Mark

Solid material comminution or disintegration

Apparatus

Including means applying fluid to material

241 74, 241 791, 241277, B02C 2324

Patent

active

050487655

ABSTRACT:
A paper material refining apparatus has a tank the space in which is divided by a drum-type screen plate into a primary chamber and a secondary chamber, and a material supply pipe for supplying the paper material and a drum-shaped rotor for rotating the material are disposed in the primary chamber. The drum-type rotor is disposed such that its peripheral surface opposes the drum-type screen plate, with the top plate thereof facing the open end of the material supply pipe. The drum-type rotor is provided with step-like projections on the outer peripheral surface thereof. Foreign matters contained in the paper material such as metal pieces are struck by the top plate of the rotor and displaced radially outward by the centrifugal force. The projections formed on the peripheral surface of the drum-type rotor substantially uniformly act on the paper material so as to develop a substantially uniform discharge pressure on the paper material, thus preventing generation of pulsation which is inevitably generated in the conventional apparatus.

REFERENCES:
patent: 2641971 (1953-06-01), Ellis
patent: 3307791 (1967-03-01), Nagai
patent: 3375776 (1968-04-01), Dyson
patent: 3474972 (1969-10-01), Kobayashi
patent: 3489356 (1970-01-01), Combs et al.
patent: 4154407 (1979-05-01), Lamort
patent: 4615492 (1986-10-01), Downie
patent: 4913359 (1990-04-01), Satomi

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