Optimizing pellet mill controller

Details Optimizing pellet mill controller Optimizing pellet mill controller

1995-04-19

1996-12-10

Davis, Robert

Plastic article or earthenware shaping or treating: apparatus

Control means responsive to or actuated by means sensing or...

Temperature control

364152, 36446824, 425145, B29C 6700, G06F 1900

Patent

active

055828477

ABSTRACT:
A controller for controlling a pellet mill, used to extrude milled ingredients through a die into more manageable and economical pellets, keys particular control parameters to a library of pellet types and then adjusts the control parameters to optimize throughput within the limits imposed by potential plugging of the die. If a potential plugging is detected, the controller responds in two stages, intended to reduce the restart time for pluggings of less severity, and thus to allow more aggressive operation. Pellet fines are recycled and liquid ingredients compensated to provide improved efficiency.

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patent: 4327871 (1982-05-01), Larsen
patent: 4463430 (1984-07-01), Volk, Jr. et al.
patent: 4742463 (1988-05-01), Volk, Jr.
patent: 4751030 (1988-06-01), Volk, Jr.
patent: 4764874 (1988-08-01), Volk, Jr.
patent: 5021940 (1991-06-01), Cox et al.
patent: 5402352 (1995-03-01), Kniepmann et al.

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