首页|生物炭还田机关键部件设计与仿真分析

生物炭还田机关键部件设计与仿真分析

扫码查看
当前生物炭还田过程烦琐,费时费力,为实现生物炭还田开沟—排炭—覆土一体化技术,设计适用于生物炭还田机上的排炭系统关键部件——开沟还田铲和排炭器.通过离散元软件洛基(Rocky)建立关键部件的仿真模型,模拟生物炭还田的工作过程.以炭量均匀性变异系数作为试验指标,出口距离、导管直径和挡板夹角为试验因素,运用Design-Expert软件设计单因素试验和三因素三水平响应面试验,通过分析响应面图和参数优化模块得到最优工作参数组合:出口距离65.20 mm、导管直径25.30 mm和挡板夹角30°.试验结果表明,在最优工作参数下,生物炭还田关键部件的炭量均匀性变异系数为28.622%,能一次性完成开沟、排炭还田、覆土工作,可为生物炭还田技术提供参考.
Design and simulation analysis of key components of biochar return machine
At present,the process of biochar return to the field is complicated,laborious and time-consuming.In order to achieve the integration of trenching,biochar distribution,and soil covering for biochar return to the field,the key components for the biochar distribution system on the biochar return machine are designed,such as a trenching shovel and a biochar distributor.A simulation model of the key components is established by using the discrete element software Rocky to simulate the process of biochar return to field.The variability coefficient of biochar distribution is taken as the experimental index,the exit distance,the diameter of the conduit and the angle of the deflector blade as experimental factors,the Design-Expert software is utilized to design a single-factor experiment and a three-factor,three-level response surface experiment,the optimal working parameter combination is obtained through the analysis of response surface plots and parameter optimization modules,the outlet distance is 65.20 mm,the conduit diameter is 25.30 mm,and the baffle angle is 30°.The experimental results indicate that the variability coefficient of biochar distribution of the key components designed in this paper is 28.622% under the optimal working parameters,and the trenching,biochar distribution and soil covering process can be completed in one pass,which can provide a reference for the technology of biochar return to field.

biochar return to fieldRocky programdiscrete element simulationresponse surface testparameters optimization

蒋淑英、陈中玉、马方、张露籍、李明亮、任德志

展开 >

盐城工业职业技术学院,江苏 盐城,224005

沈阳农业大学工程学院,沈阳市,110866

生物炭还田 洛基程序 离散元仿真 响应面试验 参数优化

农业农村部生物炭化技术与支撑服务盐城市科技计划项目盐城工业职业技术学院校级教科研跨界创新团队项目

01101921001YCBK202239

2024

中国农机化学报
农业部南京农业机械化研究所

中国农机化学报

CSTPCD北大核心
影响因子:0.684
ISSN:2095-5553
年,卷(期):2024.45(11)