Conical refiner plates with logarithmic spiral type bars

Details Conical refiner plates with logarithmic spiral type bars Conical refiner plates with logarithmic spiral type bars

2006-01-11

2008-07-15

Miller, Bena (Department: 3725)

Solid material comminution or disintegration

Apparatus

Cooperating comminuting surfaces

C241S296000

Reexamination Certificate

active

07398938

ABSTRACT:
A special shape of bars on refining cones or plate segments of a rotating conical refiner is disclosed including a plurality of bars generally extending outwards towards the outer end of the cone across its working surface, arranged in a single, two or more radial zones, the plurality of the bars within a zone being curved with the shape of a logarithmic type spiral. Conical refiners including such refining cones are also disclosed.

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