| 摘要 |
An apparatus including ductwork with an inlet duct having an inlet port for receiving a cotton/trash mix discharged by a cotton gin, a lint cotton outlet duct having a lint cotton outlet port for allowing lint cotton to exit therethrough, and a trash outlet port intermediate the inlet port of the inlet duct and the lint cotton outlet port of the lint cotton outlet duct for allowing trash to exit therethrough; the inlet duct having an interior passageway, at least a portion of the interior passageway of the inlet duct having a contour with a variable cross-sectional area; the lint cotton outlet duct having an interior passageway, at least a portion of the interior passageway of the lint cotton outlet duct having a contour with a variable cross-sectional area. The apparatus further includes a knife positioned at the trash outlet port; and a control mechanism for causing movement of at least a portion of the inlet duct to vary the cross sectional area of the contour of at least a portion of the interior passageway thereof and/or the size of the trash outlet port, and for causing movement of at least a portion of the lint cotton outlet duct to vary the cross sectional area of the contour of at least a portion of the interior passageway thereof and for causing movement of the knife to vary the size of the trash outlet port.
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