Performance Simulation Study of Rural Kitchen Waste Crusher with Double Toothed Rollers Based on Discrete Element Method

Based on discrete element software, kitchen waste represented by bone was pulverized and simulated through modeling of double toothed rollers．Corresponding effect of simulation was observed by changing rotational speed n of tooth roll and height h of falling material．Based on particle distribution and color（velocity size）, it was concluded that the best effect was achieved at 35 r/min gear roll speed and 230 mm blanking height, that was, the best crushing effect．Particle bonding model was used to provide theoretical basis for structure optimization of double toothed rollers．