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United States Department of Agriculture

Agricultural Research Service

Title: Ginning Rate, Turnout, and Fiber Quality Results for the Powered Roll Gin Stand on Seed Cotton

Authors
item Holt, Gregory
item Laird, Joseph
item Lalor, William - COTTON INCORPORATED
item Wedegaertner, Tom - COTTON INCORPORATED

Submitted to: ASAE Annual International Meeting
Publication Type: Proceedings
Publication Acceptance Date: July 30, 2001
Publication Date: September 15, 2001
Citation: HOLT, G.A., LAIRD, J.W., LALOR, W.F., WEDEGAERTNER, T.C. GINNING RATE, TURNOUT, AND FIBER QUALITY RESULTS FOR THE POWERED ROLL GIN STAND ON SEED COTTON. 2001. AMERICAN SOCIETY OF AGRICULTURAL ENGINEERS. PAPER NO. 011139

Interpretive Summary: A new, improved saw gin stand (U. S. Patent number 6,061,875) has been developed at the USDA-ARS ginning laboratory in Lubbock, Texas. The new saw gin stand is known as the powered roll gin stand. This gin has a powered paddle roll turning the seed roll and rotating seed fingers regulating seed discharge. To date, this gin stand has shown improvements in comparisons with the laboratory's conventional high capacity gin stand in increased throughput, turnout, and some fiber properties. Previous studies evaluating the gin stand demonstrated performance yielding approximately 7 percent more lint (35 pounds per bale) from the seed cotton while producing slightly better staple length. However, the previous research was based on operating conditions that were optimal while reginning cottonseed. This research focuses on two studies to determine the powered roll gin stand's optimum operating parameters when ginning seed cotton. Determination of the optimum settings were based on the best overall turnout, processing rate, and fiber quality grades. Results indicate a paddle roll loading rate of 16 or 22 amps produced the best results in terms of processing rate and fiber quality. Likewise, the optimum operating speeds of the seed finger, paddle roll, and gin saw appear to be 11.5, 180, and 720 (rpm), respectively.

Technical Abstract: Research at the USDA-ARS ginning laboratory at Lubbock, Texas developed a new, improved gin stand. This gin has a powered paddle roll turning the seed roll and rotating seed fingers regulating seed discharge (U.S. Patent No. 6,061,875). A cooperative research and development program has been initiated to investigate various gin stand design factors affecting performance and lint quality. Previous studies evaluating the gin stand demonstrated performance yielding approximately seven percent more lint (35 pounds per bale) from the seed cotton while producing slightly better staple length. This research focused on determining the optimum speeds and loading rates for the paddle roll, saw, and seed finger roll components of the powered roll gin stand while ginning seed cotton based on turnout, processing rate, and fiber quality data. Results indicate a paddle roll loading rate of 16 or 22 amps produced the best results in terms of processing rate and fiber quality. Likewise, the optimum operating speeds of the seed finger, paddle roll, and gin saw appear to be 11.5, 180, and 720 (rpm), respectively.

Last Modified: 8/27/2014
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