Wood size reduction apparatus

Details Wood size reduction apparatus Wood size reduction apparatus

1990-12-28

1992-11-24

Rosenbaum, Mark

Solid material comminution or disintegration

Apparatus

Comminuting surface provided with openings to permit...

2411891, 241191, B02C 1306, B02C 1328

Patent

active

051656116

ABSTRACT:
A comminutor for reducing large diameter wood products and stumps to size, comprised of a reduction chamber, with an impact rotor positioned concentrically therein, in combination with a housing, drive motor and infeed chute. The impact rotor is formed with a plurality of horizontally elongated impact hammers at its periphery. The impact hammers are arranged in sets of impact hammer rows oriented at an angle to the rotational axis of the impact rotor. Each set of impact hammers has one row of hammers having radial angles increasing along the rotor's longitudinal axis in the axial direction of the rotor and a second opposing row of hammers having radial angles decreasing along the rotor's longitudinal axis in the axial direction of the rotor. The rotor is positioned so that the elongated wood product or stump falling under the influence of gravity through the infeed chute is directed against the impact hammers, and repelled ahead of the rotor's rotational direction against an anvil formed along one side of the reduction chamber.

REFERENCES:
patent: 646249 (1900-03-01), Williams
patent: 764268 (1904-07-01), Boileau
patent: 2045691 (1936-06-01), Armstrong
patent: 3224688 (1965-12-01), Beiter
patent: 4151959 (1979-05-01), Deister
patent: 4177954 (1979-12-01), Ostreng
patent: 4226375 (1980-10-01), Cameron
patent: 4919344 (1990-04-01), McKie

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