Design and Test of Soil–Fertilizer Collision Mixing and Mulching Device for Manure Deep Application Machine

Yang Niu, Jiyuan Zhang, Jiangtao Qi (), Hewei Meng (), Huijie Peng and Jiahao Li
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Yang Niu: College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832000, China
Jiyuan Zhang: College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832000, China
Jiangtao Qi: Northwest Key Laboratory of Agricultural Equipment, Ministry of Agriculture and Rural Affairs, Shihezi 832000, China
Hewei Meng: College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832000, China
Huijie Peng: College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832000, China
Jiahao Li: College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832000, China

Agriculture, 2023, vol. 13, issue 3, 1-19

Abstract: Aiming at the problems of low uniformity and utilization rate in the traditional deep application method of orchard manure, a soil–fertilizer collision mixing and mulching device was designed. The ditching mechanism, the structure of the soil divider, and the fertilizer delivery auger were analyzed and designed. Furthermore, with the rotational speed of the cutter and auger and the deflection angle of the soil divider as factors, as well as the uniformity of soil–fertilizer mixing and mulching as evaluation indexes, the discrete element simulation tests were conducted. The simulation results showed that when the turret speed, the stirrer speed and the soil separator deflection angle were 140 r/min, 146 r/min and 22°, the mixing uniformity and mulching uniformity were the highest, which was 88.35% and 96.86%, respectively. Based on the optimal parameters, the field test was conducted, and the soil–fertilizer mixing uniformity was 87.02%, with a relative error of 1.33% compared with the simulation test results. The relative error of 94.37% of mulch uniformity is 2.49%, which indicates that the simulation optimization results are reliable and the mixing performance of the device is good and can meet the requirements of soil–fertilizer mixing operation. The results of this study can provide an important reference for the design of the soil and fertilizer mixing machine.

Keywords: agricultural machinery; stable manure; mixing; mulching; discrete element simulation (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2023
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