Solid material comminution or disintegration – Apparatus – Series material flow only through plural comminuting zones
Patent
1979-07-17
1981-05-26
Rosenbaum, Mark
Solid material comminution or disintegration
Apparatus
Series material flow only through plural comminuting zones
241247, 2412612, B02C 706
Patent
active
042693659
ABSTRACT:
A beater for refining fibre slurries, such as paper pulp, and for refining lump goods, such as wood chips and shavings comprises a central rotor and two outer fixed parts surrounding the rotor. The rotor is provided with two ring-shaped beater means and each of the two outer parts is provided with a ring-shaped beater means to form two beater zones between the beater means, one zone on each side of the rotor, in which zones the goods to be refined are treated during passage thereof substantially radially outwardly and as a result of the relative rotation between the rotor and the outer parts. The rotor has a cavity with an axial inlet for the goods to be refined and radially converging, substantially V-shaped defining walls, in which walls holes are arranged through which the goods can be passed to respective zones via passages formed between the rotor and the surrounding parts. A rotatable propeller-like means is arranged in the cavity to disintegrate the goods and to spread it by centrifugal force and to cause it to divide into two substantially equal flows which pass out through the holes in respective walls and into passages connecting therewith.
REFERENCES:
patent: 1496641 (1924-06-01), Hurrell
patent: 2991020 (1961-07-01), Jones
patent: 3327952 (1967-06-01), Rosenfeld
patent: 3371873 (1968-03-01), Thomas
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