Refiner for processing fiber material

Details Refiner for processing fiber material Refiner for processing fiber material

1987-08-12

1989-03-21

Rosenbaum, Mark

Solid material comminution or disintegration

Apparatus

Cooperating comminuting surfaces

241298, B02C 712

Patent

active

048136212

ABSTRACT:
The grinding discs of a refiner driven by an electric motor carry on the end faces facing each other material-grinding barriers or cutters which are arranged in groups in sectors and extend parallel to each other. To reduce the torsional excitation of the rotor shaft of the electric motor occurring during the operation of the refiner as far as possible, the sectors have irregular pitch or different sector angles along the circumference of the grinding discs.

REFERENCES:
patent: 25243 (1859-08-01), Brevoort
patent: 406954 (1889-07-01), Potter
patent: 992000 (1911-05-01), Kihlgren
patent: 1778860 (1930-10-01), Lindenfelser
patent: 3910511 (1975-10-01), Leider et al.
patent: 4351489 (1982-09-01), Laptev et al.

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