Procedure and mechanism for the automatic control of a grinding mill roller carriage equipped with a regulated product feed

摘要

PCT No. PCT/CH80/00151 Sec. 371 Date Nov. 9, 1981 Sec. 102(e) Date Nov. 9, 1981 PCT Filed Dec. 5, 1980.The invention describes a new type of automation for a roller carriage. The amount of product conveyed to the roller carriage is constantly subject to fluctuations, and is determined by a mechanical probe. A corresponding signal directly activates a pneumatic valve, and control pressure adjusts the instantaneous performance of the grinding rolls. The pneumatic valve has a so-called zero position, and becomes a follower control device by means of servo-media and the adjusting mechanism of the performance-dependent elements in the roller carriage. At the same time, the control pressure in the pneumatic valve can start and stop the grinding rolls.