Apparatus for slip regulation of a pellet mill

Details Apparatus for slip regulation of a pellet mill Apparatus for slip regulation of a pellet mill

1991-07-19

1992-10-06

Coe, Philip R.

Presses

Automatic or material triggered control

Of material addition, deposition, or discharging

100 47, 100 99, 100157, 100905, 425DIG230, 425145, 425135, B30B 1530, B30B 1514

Patent

active

051522152

ABSTRACT:
A pellet mill (1) is provided with a control unit with the help of which a desired value of press roll slippage, e.g. zero or a pre-selectable peak value can be maintained. For this purpose, the pellet mill (1) comprises a first measuring unit (27, 28) for measuring the circumferential speed of the perforated die (8) as well as a second measuring unit (23, 24) for measuring the circumferential speed of the press rolls (11, 12). In a comparator (30, 31), the two circumferential speeds are compared and on exceeding a pre-selectable peak value for the difference of the two measured values, a slip signal is created by means of which the mill drive, and/or the supply of basic material to be formed is influenced in such a manner that the slippage will be prevented.

REFERENCES:
patent: 3932736 (1976-01-01), Zarow et al.
patent: 4711622 (1987-12-01), Schaffner

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