Design and Experiment of Hydraulic Scouring System of Wide-Width Lotus Root Digging Machine

Liu, Yan; Zhou, Yong; Lv, Wen; Huang, Haidong; Zhang, Guozhong; Tu, Ming; Huang, Lin

doi:10.3390/agriculture11111110

Cited by 8 publications

(3 citation statements)

References 5 publications

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“…The quality of residual PF and impurities collected during each test was measured and the test data were recorded. The experimental results obtained from the present study are presented by column charts and line charts [28][29][30].…”

Section: Effect Of the Different Distances Between Elastic Teeth On The Recovery And Separation Rate Of Pfmentioning

confidence: 99%

Design, Simulation and Experimentation of a Polythene Film Debris Recovery Machine in Soil

Jin

Liu

et al. 2022

Applied Sciences

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With the rapid development of planting techniques using plastic film mulching, the content of residual plastic film in soil increases year by year, which pollutes the soil and water, endangers the growth of crops and reduces the quality and yield of agricultural products. Therefore, in order to solve the problem that plastic film with a thickness of 0.008 mm, commonly used in China, is difficult to recycle, this study designed the residue film recycling machine based on the existing research results. After harvesting cotton in Xinjiang, the working performance of the residue film recovery machine of plough layer was measured. Through theoretical optimization and field experiments, the effects of conveyor speed, distance between elastic teeth and type of elastic teeth on residual film recovery were studied. The relationship between the parameters of the residual film recovery machine and the recovery effect of the residual film was analyzed. When the rotational speed and inclination angle of the conveying and separating device were 74 rpm, 35° and 120 rpm, 45°, respectively, under the condition that the distance between C-shaped elastic teeth was 59 mm, the recovery and separation rate of residual plastic film were 88.12% and 83.27%, respectively. Based on the study results, it is recommended to accelerate the development of naturally degradable agricultural plastic film or to popularize and apply thickened film. Relevant local standards and policies have been formulated to address the problem of residual film pollution, and a governance system has been established for the benefit of the government, scientific research institutions, enterprises and farmers. This study provides a reference for mechanized recovery of residual plastic film in soil and treatment of soil pollution.

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Section: Effect Of the Different Distances Between Elastic Teeth On The Recovery And Separation Rate Of Pfmentioning

confidence: 99%

Design, Simulation and Experimentation of a Polythene Film Debris Recovery Machine in Soil

Jin

Liu

et al. 2022

Applied Sciences

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show abstract

“…In terms of variable fertilizer application, Yang et al [15] designed a control system with a variable fertilizer applicator for winter, and the control system adopted PID control technology to ensure accurate use of fertilizer. Liu et al [16] developed an electronic drive and control system for the measurement of micro-granular fertilizer in a precision planter, and the system was controlled using a closed-loop controller. Pareek et al [17] used the metamodel based on the Gaussian process and the indoor test data to identify the process of variable-rate fertilization.…”

Section: Introductionmentioning

confidence: 99%

Design of an Electronically Controlled Fertilization System for an Air-Assisted Side-Deep Fertilization Machine

Zhu,

Zhang

et al. 2023

Agriculture

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The traditional air-assisted side-deep fertilization device has some problems, such as inaccurate control system parameters and poor precision in variable fertilization. It seriously affects the application and popularization of the device. Aiming at the above problems, this paper wanted to realize the precise fertilizer discharge control of an air-assisted side-deep fertilization device. This paper designs an electronically controlled fertilization system based on a PID controller from the past. The system model was constructed in MATLAB, and the mathematical model and transfer function model of a stepper motor, the mathematical model of fertilizer discharge, and the stepper motor rotational speed were established too. In order to improve the accuracy of precise fertilizer discharge control system parameters, the system parameters were optimized based on the particle swarm optimization algorithm and the control system tuner toolbox. We had established a validation test platform to test the performance of a precise fertilizer discharge control system. In the actual experiment, the maximum stability coefficient of variation was 0.91% at the target fertilizer discharge mass level of 350 g/min, and the maximum error of fertilizer discharge was 4.14% at 550 g/min of the target fertilizer discharge mass level. By analyzing the test results of the precise fertilizer discharge control system, the new precise fertilizer discharge control system had good fertilizer discharge stability and could also meet the technical specification for quality evaluation of fertilization machinery (NY/T 1003-2006). This research can improve the fertilizer discharge accuracy of the air-assisted side-deep fertilization control system.

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“…Today, there are many types of scourer machines on the market, and it is seen that the scourer wall surfaces in each of them have different patterns [17][18][19]. However, no study in the literature related to pattern type affecting the scourer's performance has been found.…”

Section: Introductionmentioning

confidence: 99%

Effect of Scourer Screen Patterns on the Wheat Husk Removal Efficiency

Bal¹,

Bakırhan²,

Apakhan³

et al. 2022

adeletters

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The scourer machines remove wheat husk contaminated with pesticides and other impurities that adversely affect product quality and shelf life. For this purpose, at least one scourer machine is used in each industrial grain flour factory, depending on the capacity. The efficiency of these machines is highly dependent on the surface texture and scourer screen patterns. In this study, the efficiency of the wheat scourer machines with various wall patterns and meshes was investigated experimentally. The investigation employed six distinct types of scourer screens. Type-4 has produced the best results in fractured grain rate, whereas Type-2 has produced the best in ash content. It was revealed that wheat’s scouring efficiency and physical and chemical properties vary depending on the scourer screen pattern.

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Design and Experiment of Hydraulic Scouring System of Wide-Width Lotus Root Digging Machine

Cited by 8 publications

References 5 publications

Design, Simulation and Experimentation of a Polythene Film Debris Recovery Machine in Soil

Design, Simulation and Experimentation of a Polythene Film Debris Recovery Machine in Soil

Design of an Electronically Controlled Fertilization System for an Air-Assisted Side-Deep Fertilization Machine

Effect of Scourer Screen Patterns on the Wheat Husk Removal Efficiency

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