河南农业大学学报2024，Vol.58Issue(6)：1012-1020,9.DOI:10.16445/j.cnki.1000-2340.20230926.001
花生捡拾收获机降尘草箱设计与气尘运动特性仿真
Design and gas dust of peanut pickup harvester simulation of motion characteristics
摘要
Abstract
[Objective]To explore the feasibility of adding dust-dropping devices to reduce dust pollution in peanut picking and harvesting operations.[Method]The two types of dust reduction grass boxes(the filter cartridge type,the cyclone dust removal type)were designed through soil particle distribution calculation,combined with the 4HJL-6-type self-propelled peanut harvesting machine.Computational fluid dynamics(CFD),using discrete phase model(DPM)Simulation analysis and comparison were made to the internal air and dust movement characteristics of the dust drop casket,with pressure loss and particle retention time as evaluation indexes.Combined with field work tests,the results of the analysis were verified by real-time monitoring of dust particles by unmanned aerial vehicles.[Result]Total suspended matter particles during simulation(total suspended particulate,TSP)When the average particle size is set to 65 μm,the average residence time of particulate matter in the filter box is 2.89 s,and the pressure loss is 703 Pa;The average residence time of particulate matter in Cyclone Dust Drop Box is 1.74 s and the pressure loss is 358 Pa;When the particle size of the suspended particles is greater than 40 μm,the separation efficiency of the square cyclone can reach 100%.In unmanned aerial dust monitoring,the average value of TSP monitoring decreased by 75.8%after loading the filter cartridge.[Conclusion]Two kinds of dust drop grass boxes have achieved the expected dust drop effect,filter cartridge type dust reduction grass box is better than cyclone dust removal type dust reduction grass box,its application economy is better,the space proportion is larger.关键词
花生捡拾收获机/旋风除尘式降尘草箱/滤筒式降尘草箱/气尘运动/总悬浮物颗粒Key words
peanut picking harvester/cyclone dust removal type dust reduction grass box/filter car-tridge type dust reduction grass box/air dust movement/total suspended matter particles分类
农业科技引用本文复制引用
张策,刘源,王万章,陈劲帆,何勋,周培林,邵龙..花生捡拾收获机降尘草箱设计与气尘运动特性仿真[J].河南农业大学学报,2024,58(6):1012-1020,9.基金项目
国家自然科学基金青年项目(62203154) （62203154）
河南省重大公益项目(201300110400) （201300110400）
