Underdriven size reduction machine

Details Underdriven size reduction machine Underdriven size reduction machine

1993-03-29

1994-07-19

Rosenbaum, Mark

Solid material comminution or disintegration

Apparatus

With separation or classification of material

241 892, 24119912, 2412851, B02C 1908

Patent

active

053301137

ABSTRACT:
A size reduction machine for use in process industries to continuously and precisely reduce the size of particles, while controlling fines, comprises an impeller mounted on a rotatable shaft, a drive operably connected to the shaft for effecting rotation of the shaft. The shaft and impeller are vertically mounted within a vertically extending channel having an input and an output. A screen has a tapered apertured wall formed in a frusto-conical shape. The screen is rigidly mounted within the channel so that any particles passing from the input to the output pass through the screen. The impeller is shaped and mounted so that a gap between an edge of the impeller and an interior of the screen remains substantially constant as the impeller rotates relative to the screen. The improvement comprises the drive being operably connected to the shaft at a point under where the impeller is mounted onto the shaft.

REFERENCES:
patent: 2780417 (1957-02-01), Harris
patent: 3693893 (1972-09-01), McIntyre
patent: 4611766 (1986-09-01), Seifert
patent: 4759507 (1988-07-01), Lynch et al.
patent: 4768722 (1988-09-01), Lynch et al.
patent: 4773599 (1988-09-01), Lynch et al.
patent: 5261612 (1993-11-01), Ftaiha

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