Batch timer initialization for a sand classifying tank

Details Batch timer initialization for a sand classifying tank Batch timer initialization for a sand classifying tank

1992-05-08

1998-10-06

Louis-Jacques, Jacques

Boots, shoes, and leggings

364500, 222 64, 2221445, G06G 758

Patent

active

058187324

ABSTRACT:
A process to determine the optimal initial settings for a series of timers in a timed-contribution batch process, based on the feed material flow rate and the composition of the material. The optimum initial timer arrangement is that which results in the maximum possible product output in the shortest possible batch time; this condition is realized when all of the minimum product requirements, as determined by the minimum timer settings, are satisfied at approximately the same time. The process first monitors the accumulation rates of the various constituents of the feed material for a discrete period of time, during which time a sensing device records the individual accumulation rates. Values representing the accumulation rates are normalized to the value of the greatest accumulation rate. A multiplier is applied to the resulting ratios to determine the optimal initial minimum timer settings. The maximum timer settings may be arithmetically or algebraically derived from the minimum timer settings. This method allows the operator to make manual adjustments, which sacrifice a percentage of the product yield for the sake of product composition control, from the starting point of maximum production.

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patent: 3913788 (1975-10-01), McClauley
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patent: 4199080 (1980-04-01), Keeney
patent: 4428505 (1984-01-01), Casey et al.
patent: 4573417 (1986-03-01), Deve

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