Vertical roller mill and method of use thereof

Details Vertical roller mill and method of use thereof Vertical roller mill and method of use thereof

1981-12-15

1984-12-04

Goldberg, Howard N.

Solid material comminution or disintegration

Processes

Miscellaneous

241 37, 241121, B02C 400

Patent

active

044859740

ABSTRACT:
The present invention relates to a vertical roller mill including a grinding roller which is urged against a grinding path on a grinding table by a hydraulic cylinder. The loading on the roller is measured by a transducer and the acceleration of the roller by an accelerometer. Resulting signals are combined at a controller which controls a valve through which hydraulic fluid is supplied to the hydraulic cylinder, so that the loading is compensated for the influence of the instantaneous velocity and acceleration of the roller.

REFERENCES:
patent: 4002299 (1977-01-01), Skalka
patent: 4212429 (1980-07-01), Cuvelier et al.
patent: 4382558 (1983-05-01), Svensson
patent: 4382561 (1983-02-01), Andersen et al.

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