| 斗式黑水虻处理猪粪有机肥取料机设计与试验 |
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| 引用本文： | 彭才望,贺喜,孙松林,宋世圣,向阳,许道军.斗式黑水虻处理猪粪有机肥取料机设计与试验[J].农业机械学报,2021,52(2):145-156. |
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| 作者姓名： | 彭才望 贺喜 孙松林 宋世圣 向阳 许道军 |
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| 作者单位： | 湖南农业大学 |
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| 基金项目： | 国家重点研发计划项目(2016YFD0501209)、湖南省自然科学基金项目(2020JJ5253)、湖南省科技厅重点研发项目(2018NK2061)和湖南农业大学“双一流”建设项目（SYL201802015） |
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| 摘 要： | 针对黑水虻处理的猪粪有机肥在取料输送过程中劳动强度大、作业效率低的问题,根据黑水虻养殖工艺流程与有机肥物理特性,设计了一种斗式取料机。采用离散元软件构建了有机肥斗轮机械部件耦合仿真模型,运用单因素试验方法获得了斗轮进给速度、料斗转速、料斗数量对单斗平均取料量、变异系数的影响规律,并确定了各因素取值范围。在单因素试验基础上,运用Box Behnken中心组合试验方法,以斗轮进给速度、料斗转速、料斗数量为试验因素,进行了三因素三水平二次回归正交试验。建立了响应面数学模型,分析了各因素对作业效果的影响,同时对影响因素进行了综合优化。结果表明:对单斗平均取料量与变异系数影响显著顺序由大到小均为料斗转速、料斗数量、斗轮进给速度;最优工作参数组合为斗轮进给速度65 mm/s、料斗转速8.25 r/min、料斗数量3个,在最优工作参数组合下,单斗平均取料量、变异系数的理论优化值与试验值分别为4.008、4.236 kg和3.19%、3.37%,二者相对误差为5.38%、5.34%,仿真试验和台架试验结果吻合度较好。
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| 关 键 词： | 猪粪 黑水虻 有机肥 斗式取料机 离散元 |
| 收稿时间： | 2020/11/30 0:00:00 |
Design and Experiment on Shoveling Device of Pig Manure Organic Fertilizer by Hermetia illucen Transforming Based on Bucket-wheel Mechanism |
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| PENG Caiwang,HE Xi,SUN Songlin,SONG Shisheng,XIANG Yang,XU Daojun.Design and Experiment on Shoveling Device of Pig Manure Organic Fertilizer by Hermetia illucen Transforming Based on Bucket-wheel Mechanism[J].Transactions of the Chinese Society of Agricultural Machinery,2021,52(2):145-156. |
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| Authors: | PENG Caiwang HE Xi SUN Songlin SONG Shisheng XIANG Yang XU Daojun |
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| Institution: | Hunan Agricultural University |
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| Abstract: | Aiming at the problems of high labor intensity in the collection and transportation forpig manure organic fertilizer by Hermetia illucen transforming,based on the process flow of Hermetia illucen breeding and the physical characteristics of organic fertilizer,a bucket-wheel shoveling device was designed.To improve the mean mass shoveled by hopper and reduce the coefficient of variation between each hopper,single-factor test was used to get the best form of the bucket-wheel mechanism.The Box Behnken central composite experimental design principle was adopted on the basis of single factor experiment to research the working parameters of the shoveling device.The moving speed of bucket-wheel,rotation speed of hopper,and number of the hopper were taken as the influencing factors,the mean mass of organic fertilizer shoveled by thehopper and coefficient of variation were selected as the responsive variables.The results showed that the mean mass of organic fertilizer shoveled by the hopper and coefficient of variation could be fitted with two regression polynomials.According to the rate of factors contribution,the results indicated that the rotation speed of hopper had the greatest effect on the mean mass of organic fertilizer shoveled by the hopper and coefficient of variation among the three selected main factors followed by counterweight position,and moving speed of bucket-wheel had the minimum effect.Taking the maximum average mass of organic fertilizer shoveled by the hopper and the smallest coefficient of variation as the optimization goal,the optimal operating parameters of the machine was obtained:the moving speed of bucket-wheel was 65 mm/s,the rotation speed of hopper was 8.25 r/min and number of the hopper was 3.At this time,the theoretical values of mean mass of organic fertilizer shoveled by the hopper and coefficient of variation were 4.008 kg and 3.19%,respectively.Based on the optimization result,the physical prototype was processed.The test results showed that the mean mass of organic fertilizer shoveled by the hopper and coefficient of variation were 4.236 kg and 3.37%,respectively.The relative errors between the experimental and predicted values of average mass of organic fertilizer shoveled by the hopper and coefficient of variation were 5.38%and 5.34%,respectively.The results indicated that the multivariate regression model was reliable. |
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| Keywords: | pig manure Hermetia illucen organic fertilizer bucket-wheel reclaimer discrete element |
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