Computerized Process Control for Gins
Mar 28, 2019

WCRC WCRC2

ABSTRACT
A computerized gin process control system (CGPCS) to "prescription process" cotton was developed and implemented in the United States. Properly controlling the cleaning and drying that cotton receives during processing at the gin with a CGPCS increases monetary returns to the farmer, increases fiber yield and improves fiber quality. The CGPCS can be simple or complex and can range from a single camera that measures the colour and trash of the cotton to a full CGPCS that has several camera systems to measure colour and trash, multiple moisture sensors and automated valves that allow continuous and immediate diversion of the cotton during processing. Positive results from field experiences over a 9-year period from 1989 to 1997 at commercial cotton gins indicated that the equipment and software are very beneficial to the farmer. Sufficient increased profits to the farmer and ginner should recover the entire cost of the CGPCS system during the first year of operation. In general, controlling the level of drying increased bale weights about 4.5 kg (10 lb.) per bale and bypassing one stage of lint cleaning on cotton selected by the computerized system increased the bale weight about 4.5 kg (10 lb.) per bale. Monetary returns can be increased by $7 to $21 per bale for 16-20 million bales produced annually in the U.S. Fiber yield is increased 6% and neps and short fiber content are decreased over 40%.


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