DEM Simulation and Experimental Validation of the Performance of an Orchard Deep Applicator for Manure

Green, healthy and sustainable development is the direction of China’s agriculture, stable fertilizer has become first choice for orchard fertilizer. In this paper, in order to improve working performance combined application device 2KF-30 type deep applicator, matching degree operation scraper auger was taken as research objective, theoretical analysis, numerical simulation, experimental verification were carry out research. Applying fuzzy theory, comprehensive qualified rate weighted by uniformity fertilization proposed evaluation index. The shaft speed, space, spiral conveyor pitch selected test factors, design carried single-factor response surface method tests, simulations conducted discrete element software analyze optimal combination parameters. results analyzed based on simulation software. testbed set up verify above results. showed that maximum error between physical 8.67%, minimum 1.75% overall mean value pass predicted quadratic regression equation 5.99%, which can meet operational requirements device. provide a basis improvement fertilizing machine manure.