Abstract
This study addresses the challenges of low screening efficiency and significant soil accumulation on the screen surface during the screening process of Fritillaria ussuriensis Maxim (FUM). We developed a combined screen-kneading device for FUM screening. The screening performance simulation results indicated that a rotating speed of 57 rpm for the kneading device yields a screening efficiency of 79.70%, with a corresponding particle accumulation mass of 55.81 kg. When the distance between the kneading device and the screen surface is 28.96 mm, the screening efficiency reaches 80.79%, and the corresponding particle accumulation mass is 72.27 kg. When the vibration frequency of the vibrating screen is between 3.5 and 5.5 Hz, and the feed rate is between 2.5 kg and 10 kg, the screening efficiency increases by 3.29% to 20.63%, compared to that of the screen without the kneading device, and the particle accumulation mass can be reduced by up to 14.62 kg.
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