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斗式黑水虻處理豬糞有機肥取料機設(shè)計與試驗
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國家重點研發(fā)計劃項目(2016YFD0501209),、湖南省自然科學(xué)基金項目(2020JJ5253)、湖南省科技廳重點研發(fā)項目(2018NK2061)和湖南農(nóng)業(yè)大學(xué)“雙一流”建設(shè)項目(SYL201802015)


Design and Experiment on Shoveling Device of Pig Manure Organic Fertilizer by Hermetia illucen Transforming Based on Bucket-wheel Mechanism
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    摘要:

    針對黑水虻處理的豬糞有機肥在取料輸送過程中勞動強度大,、作業(yè)效率低的問題,,根據(jù)黑水虻養(yǎng)殖工藝流程與有機肥物理特性,設(shè)計了一種斗式取料機,。采用離散元軟件構(gòu)建了有機肥-斗輪機械部件耦合仿真模型,,運用單因素試驗方法獲得了斗輪進給速度、料斗轉(zhuǎn)速、料斗數(shù)量對單斗平均取料量,、變異系數(shù)的影響規(guī)律,,并確定了各因素取值范圍。在單因素試驗基礎(chǔ)上,,運用Box-Behnken中心組合試驗方法,,以斗輪進給速度、料斗轉(zhuǎn)速,、料斗數(shù)量為試驗因素,,進行了三因素三水平二次回歸正交試驗。建立了響應(yīng)面數(shù)學(xué)模型,,分析了各因素對作業(yè)效果的影響,,同時對影響因素進行了綜合優(yōu)化。結(jié)果表明:對單斗平均取料量與變異系數(shù)影響顯著順序由大到小均為料斗轉(zhuǎn)速,、料斗數(shù)量,、斗輪進給速度;最優(yōu)工作參數(shù)組合為斗輪進給速度65mm/s,、料斗轉(zhuǎn)速8.25r/min,、料斗數(shù)量3個,在最優(yōu)工作參數(shù)組合下,,單斗平均取料量,、變異系數(shù)的理論優(yōu)化值與試驗值分別為4.008、4.236kg和3.19%,、3.37%,,二者相對誤差為5.38%、5.34%,,仿真試驗和臺架試驗結(jié)果吻合度較好,。

    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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彭才望,賀喜,孫松林,宋世圣,向陽,許道軍.斗式黑水虻處理豬糞有機肥取料機設(shè)計與試驗[J].農(nóng)業(yè)機械學(xué)報,2021,52(2):145-156. 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 for Agricultural Machinery,2021,52(2):145-156.

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  • 收稿日期:2020-11-30
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  • 在線發(fā)布日期: 2021-02-10
  • 出版日期: 2021-02-10
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