脱绒棉种介电分选参数的优化

Optimization of parameters for delinted cottonseeds dielectric selection

为优化脱绒棉种介电分选参数,采用二次回归通用旋转组合设计方法,建立介电分选后获选棉种的介电常数、棉种电导率和棉种活力指数分别与分选电压、滚筒转速和棉种含水率3个主要的介电分选影响因素之间关系的数学模型,分析各影响因素对各试验指标的影响,并进行参数优化,确定各影响因素的参数组合为:分选电压6000～6574.43V,滚筒转速30.08～34.38r/min,棉种含水率为4%。

In order to determine the operation parameters,use delinted cottonseeds dielectric selection,three parameters,namely,separation voltage,roller rotatation speed and the cotton seed moisture were selected as input variables,and the dielectric constant,cotton seed vigour and its index selected after the dielectric selection of the cotton seed as output parameters.A quadratic regression general experimental design was employed to develop the second order polynomial regression model,which explained the relationship between input and output parameters.An optimum combination of input parameters was obtained with the region of separation voltage 6 000.00-6 574.43 V,roller rotatation speed 30.08-34.38 r/min and the cotton seed moisture of 4%.Those are useful references for cottonseed delinting by dielectric selection.