Solid material comminution or disintegration – Apparatus – With automatic control
Patent
1991-08-16
1993-05-04
Hall, Carl E.
Solid material comminution or disintegration
Apparatus
With automatic control
241 35, B02C 2500
Patent
active
052073904
ABSTRACT:
A control system for a refuse shredder composed of a refuse feeding section and a refuse shredding section detects a stagnating state of refuse to adjust the feed rate, detects idling of the feeding section and restores it to a proper state, detects a tendency of tripping of a shredder drive motor and prevents such tripping, and generally automates an operation of the shredder. The system includes an image pickup device for picking up an image of a refuse inlet of the shredder, an image processor for binary-coding an image signal generated by the image pickup device to obtain a characteristic quantity of the refuse, and control calculator for calculating and outputting a control signal for controlling the feeding section and the shredding section on the basis of the characteristic quantity of the refuse obtained by the image processor. Preferably, the system further includes a current detector for detecting a drive current value of a drive motor for the feeding section and the shredding section, and the control calculator calculates and outputs a control signal for controlling the feeding section and the shredding section on the basis of the above-mentioned characteristic quantity of the refuse as well as the detected drive current value of the drive motor.
REFERENCES:
patent: 3335967 (1967-08-01), Williams
patent: 4344520 (1982-08-01), Czoch et al.
patent: 4515318 (1985-05-01), Savonjousi
patent: 4804148 (1989-02-01), Etheridge
Akasaka Noriyuki
Ikeda Yoshitaka
Kinoshita Etsuko
Matsubara Wataru
Ono Hidetaka
Hall Carl E.
Husar John M.
Mitsubishi Jukogyo Kabushiki Kaisha
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