Rotating disc wood chip refiner

Details Rotating disc wood chip refiner Rotating disc wood chip refiner

1985-08-19

1987-12-15

Eley, Timothy V.

Solid material comminution or disintegration

Apparatus

Cooperating comminuting surfaces

241296, B02C 708, B02C 712

Patent

active

047127457

ABSTRACT:
In a rotating disc wood chip refiner having a number of refiner plates with a grid of radial bars and slots with a multiplicity of dams in the slots, the dams are spaced in outwards decreasing increments forming a continuous series of resonant cavities, and the radial bars are radially and uniformly skewed backwards at a radial angle of about 1.5 degrees to disc rotation. These improvements provide a reduced energy input by means of a resonating cavity flow regime, together with a low fluid-dynamic drag radial bar profile and a pressure recovery radial slot profile.

REFERENCES:
patent: 3815834 (1974-06-01), Gilbert
patent: 4039154 (1977-08-01), Peterson

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