Refining disc for wood pulp or the like

Details Refining disc for wood pulp or the like Refining disc for wood pulp or the like

1984-07-26

1986-11-25

Rosenbaum, Mark

Solid material comminution or disintegration

Apparatus

Comminuting elements

2412612, B02C 711

Patent

active

046244204

ABSTRACT:
A refining disc assembly for wood pulp or the like, particularly including a rotor disc and an intermediate disc of a coaxial assembly of three refining discs, comprises a hub having two or more radial peripheral fins, interconnected by an outer ring having spaced perforations for attachment thereto of a refining disc. The refining disc is formed of a carbon-steel, iron or stainless-steel frame and comprises two concentric rings, interconnected by radial rods. The internal ring contains perforations matching those of the hub. The refining disc receives on both faces thereof, a plurality of trapezoidal stainless-steel plates, attached thereto by welding, and with intermediate gaps which are filled with weld beads, the internal and external contours thereof being machined on a lathe, after which both faces of the so-obtained disc receive refining blades, attached by welding.

REFERENCES:
patent: 874244 (1907-12-01), Robinson
patent: 4157669 (1979-06-01), Pilao

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