Authors

Abstract

Aiming at the problem that contain more soil impurities of potato post-harvest, which affects subsequent deep processing, an apparatus for removing soil impurities from potato was developed. The whole structure is mainly composed of frame, feeding port, flexible rubber finger conveying mechanism, slender filament rotary brushing mechanism, discharging port and the like. The research and analysis determined that the main parameters influencing the soil impurities removal performance are the movement speed of conveying mechanism, the movement speed of brushing mechanism and the clearance between conveying mechanism and brushing mechanism (hereinafter referred to as the mechanism clearance). Taking the main influencing parameters as test factors, and the soil impurities removal rate and potato damage rate as indexes, the orthogonal test with three factors and three levels was carried out. The optimal parameter combination was obtained as follows: the movement speed of conveying mechanism is 0.35m/s, the movement speed of brushing mechanism is 0.40m/s, and the mechanism clearance is 55mm. At this time, the average soil impurities removal rate is 87.18%, and the potato average damage rate is 1.95%, which meet the requirements of potato cleaning operation.

Abstract in Chinese

针对马铃薯产后含有较多土杂影响后续深加工的问题，设计了一种马铃薯土杂去除装置。该装置主要由机架、入料口、柔性橡胶拨指式输送机构、细长毛回转式刷洗机构和出料口等组成。通过研究分析确定了影响去土杂作业性能的主要参数为输送机构运动速度、刷洗机构运动速度、输送机构与刷洗机构间隙（简称机构间隙）。以主要影响参数为试验因素、去土杂率和马铃薯损伤率为试验指标，开展了三因素三水平正交试验，获取了最优参数组合为输送机构运动速度0.35m/s、刷洗机构运动速度0.4m/s和机构间隙55mm。最优参数下的验证试验结果表明，平均去土杂率为87.18%、马铃薯平均损伤率为1.95%，满足马铃薯去土杂作业要求。