Solid material comminution or disintegration – Apparatus – Including means applying fluid to material
Patent
1990-06-05
1991-11-12
Rosenbaum, Mark
Solid material comminution or disintegration
Apparatus
Including means applying fluid to material
241 69, B02C 2336
Patent
active
050641255
ABSTRACT:
An apparatus for pulping and screening materials containing fiber pulp includes an upper pulping section for breaking down the materials and a lower screening section for prescreening of the broken materials. The pulping section includes a feeding chamber delimited by a housing, a rotor unit in the feeding chamber, a drive unit for rotation of the rotor unit and a first perforated screenplate in a bottom portion of the pulping section through which an accepted portion of the broken material is fed into the screening section. The screening section includes a space also delimited by a housing and positioned on the opposite side of the first perforated screenplate and a stationary partition wall for dividing the space into a first and a second partial space. At least a portion of the partial wall defines a second perforated screenplate. The first partial space communicates with the feeding chamber for receiving the accepted portion of the broken material. The second partial space through the second screenplate receives accepted materials from the first partial space. Also, a cleaning device is provided in the first partial space and is rotatable with respect to the second screenplate.
REFERENCES:
patent: 2384326 (1945-09-01), Martindale
patent: 4619736 (1986-10-01), Henricson et al.
patent: 4941970 (1990-07-01), Ahs
OY Tampella AB
Rosenbaum Mark
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