Samuel J. Ray and W. Stanley Anthony. USDA-ARS Cotton Ginning Research Unit, 111 Experiment Station Rd., P.O. Box 256, Stoneville, MS 38776
Cotton gins typically generate supplemental returns from selling lint cleaner waste, commonly called “motes”. These motes are usually cleaned with a cylinder cleaner at the gin before selling to a merchant or processor. This study evaluated the performance of an experimental machine that used both seed cotton cleaning and lint cleaning principles to clean motes. The new machine consisted of a modified six-cylinder cleaner, two lint cleaning saws, and a fiber retaining saw. The performance of the experimental machine preceded by a conventional cylinder cleaner was compared to the performances of both a conventional cylinder cleaner, simulating gin-level cleaning, and a sequence of three seed cotton-type cleaners followed by two saw-type lint cleaners, representative of cleaning at a mote processing plant. Two levels of initial trash content and two levels of moisture were incorporated into the test. The treatment with the experimental machine achieved about 50% turnout, approximately 21 percentage points lower than the conventional cylinder cleaner and 19 percentage points higher than sequence of three seed cotton-type cleaners and two saw-type lint cleaners. However, the quality of the cleaned motes was inversely related to the turnout. Considering both turnout and the quality of the cleaned product, the experimental treatment returned $2.26 per bale of ginned lint, surpassing the value of cleaning with the conventional cylinder cleaner by $0.61. The three seed cotton-type cleaners in conjunction with the two saw-type lint cleaners experienced the highest return at $2.81 per bale of ginned lint.
Recorded presentation
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