Solid material comminution or disintegration – Processes – Miscellaneous
Patent
1991-12-17
1993-07-13
Rosenbaum, Mark
Solid material comminution or disintegration
Processes
Miscellaneous
241 34, 241 37, 2411891, 241290, B02C 1309, B02C 1331
Patent
active
052266044
ABSTRACT:
The width of the clearance between a rotor with orbiting beaters and a pivotable impact plate of a machine for comminuting coal, rock, and like materials is adjusted by a computer which controls a reversible motor serving to pivot the impact plate relative to the path of orbital movement of the beaters. The computer causes the plate to pivot toward the path of the beaters when it receives a signal that the admission of material into the housing of the comminuting machine is interrupted and a converted acoustic signal denoting that the machine generates sounds which are indicative of completed evacuation of material from the housing. The direction of pivotal movement of the plate is reversed when the computer receives a series of converted acoustic signals or a single converted acoustic signal denoting that the width of the clearance has been reduced to zero, i.e., that the beaters actually strike the adjacent portion of the plate. The computer arrests the motor when the width of the clearance reaches a preselected value and the computer thereupon initiates renewed admission of material into the housing.
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"Aufbereitungs-Technik" 1975 vol. 8.
Hung Hiep P.
Seiffert Klaus-Peter
Chin Frances
Kasper Horst M.
Rosenbaum Mark
Salzgitter Maschinenbau GmbH
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