Solid material comminution or disintegration – Apparatus – With separation or classification of material
Patent
1988-03-09
1990-03-13
Rosenbaum, Mark
Solid material comminution or disintegration
Apparatus
With separation or classification of material
241 74, 241189R, 241285B, B02C 13282
Patent
active
049077503
ABSTRACT:
A hammermill in which the housing is a dust leakage free integral bonded together assembly of plates including spaced apart front and back or rear plates between which are disposed side plates whereby the hammermill chamber is defined, a hammer carrying rotor removably mounted within the hammermill chamber and secured for ease of removal from its drive shaft that is journaled by a single bearing arrangement mounted in the housing rear or back plate for insuring smooth running even after wear, a screen arrangement removably mounted within the housing hammermill chamber radially outwardly of the rotor, centered with respect thereto and providing a high screen area to horsepower ratio, with the screen being segmented to define two major screen sections that are removably seated against annular and congruently aligned rings that are affixed to the respective housing front and rear walls, with the rotor mounting the hammermill hammers in the usual groups about the axis of same, but by way of a removable pin for each group, and with the hammermill housing front wall being open coextensively with the rotor and screen to define a single housing doorway for easy access, when opened, to the screen, rotor, and its hammers, and a single door hinged to the housing by a single hinge and reinforced for free and easy swinging movement between open and closed positions, whereby when the housing doorway is open, the assembly hammers and screen segments may be readily replaced through the housing doorway without removing the rotor and with minimunized hammermill down time.
REFERENCES:
patent: 1339950 (1920-05-01), Fowler
patent: 1666797 (1928-04-01), Snyder
patent: 2426346 (1947-08-01), Feight
patent: 2756002 (1956-07-01), Brake
patent: 2816716 (1957-12-01), Webb
Prater Industries, Inc.
Rosenbaum Mark
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