Process-optimized hammer mill

Details Process-optimized hammer mill Process-optimized hammer mill

1996-03-07

1997-11-04

Rosenbaum, Mark

Solid material comminution or disintegration

Apparatus

With separation or classification of material

2411862, 241194, 241 14, B02C 13286

Patent

active

056830440

ABSTRACT:
A hammer mill for batchwise operation has a mill housing having a perforated screening plate intended for discharging a fine fraction of the milling material. A coarse fraction of the milling material is emptied through an emptying flap. A supply shaft opens tangentially into the milling chamber. The supply shaft is closed by a movable closure wall. In order to maintain short consistent treatment times of the milling material and to precisely reproduce a specific degree of filling for the treatment space, the supply shaft is dimensioned such that it can receive more than a milling-chamber fill. The movable closure wall is displaceable back and forth between a raised standby position and a lowered operating position such that the milling material introduced into the supply shaft when the closure wall is raised is forced into the milling chamber and then held therein by the closure wall being displaced in the direction of the milling chamber. An introduction opening is provided beneath the standby position of the closure wall in the supply shaft. The receiving volume of the supply shaft, which volume is located beneath the introduction opening, is large enough for a complete milling-chamber fill to be readily received.

REFERENCES:
patent: 1301316 (1919-04-01), Plaisted
patent: 1622849 (1927-03-01), Ruprecht et al.
patent: 1920947 (1933-08-01), Armstrong
patent: 2837290 (1958-06-01), Nagel
patent: 5297741 (1994-03-01), Zurn et al.

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