Design Optimization and Experimentation of Triple-Head Gradually Reducing Spiral Precision Fertilizer Apparatus

IF 2.8 4区工程技术 Q2 ENGINEERING, CHEMICAL

Processes Pub Date : 2024-09-14 DOI:10.3390/pr12091988

Guoqiang Dun, Quanbao Sheng, Haitian Sun, Xinxin Ji, Zhenzhen Yu, Hongxuan Wang, Xingpeng Wu, Yuhan Wei, Chaoxia Zhang, Shang Gao, Hailiang Li

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引用次数: 0

Abstract

In order to solve the problems of existing spiral fertilizer apparatuses, such as the variation in cavity filling rate with rotational speed, fluctuation of fertilizer discharge flow, and inability to discharge fertilizer precisely, a triple-head gradually reducing spiral fertilizer apparatus is designed, which gradually compresses fertilizer particles through the triple-head reducing fertilizer spiral structure to achieve complete cavity filling and uniform fertilizer discharge. The main factors that affect the particle motion state and the structural size of the spiral fertilizer through theoretical analysis are determined, and its theoretical fertilizer discharge amount and rotational speed are calculated. Using EDEM (Discrete Element Method Software 2022) to establish a simulation model of a single-head gradually reducing fertilizer apparatus, the spiral lead reduction percentage x1, spiral diameter reduction percentage x2, and rotational speed x3 are determined as experimental factors, and the filling rate μ and spiral torque Yaverage are used as experimental indicators to conduct a simulation study on the secondary universal rotation combination design experiment. The results show that when the rotational speed is 95 r/min, the spiral lead reduction percentage is 60.00~73.21%, the spiral diameter reduction percentage is 86.55~97.05%, the filling rate μ is greater than 95%, and the spiral torque Yaverage is less than 16 N·m. In order to further improve the uniformity of fertilizer discharge and ensure the controllable accuracy of fertilizer discharge, comparative verification experiments are conducted on single-, double-, and triple-head gradually reducing spiral fertilizer discharge devices and ordinary spiral fertilizer discharge devices. The results show that the precision of the gradually reducing spiral fertilizer apparatus is better than that of the ordinary spiral fertilizer apparatus. Moreover, it is determined that the three-head style performed best. The triple-head gradually reducing spiral fertilizer apparatus is also validated by randomly adjusting six rotational speeds. The experiment results show that the average deviation of the fertilizer discharge flow rate of the fertilizer apparatus from the preset value is 3.16%. The two have a minor deviation, and the fertilizer precision is high. Precise control of the amount of fertilizer discharged can be achieved by adjusting the rotational speed, and the research can provide a specific reference for the improved design and precise control of the spiral fertilizer apparatus.

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三头渐减螺旋精密施肥器的优化设计与实验

为解决现有螺旋施肥机存在的空腔填充率随转速变化、排肥流量波动大、无法精确排肥等问题，设计了一种三头渐减螺旋施肥机，通过三头渐减施肥螺旋结构将肥料颗粒逐渐压缩，实现空腔完全填充和均匀排肥。通过理论分析确定了影响螺旋肥料颗粒运动状态和结构尺寸的主要因素，并计算了其理论排肥量和转速。利用 EDEM（离散元法软件 2022）建立单头渐减肥装置的仿真模型，确定螺旋导程减少百分比 x1、螺旋直径减少百分比 x2、转速 x3 作为实验因子，以填充率 μ 和螺旋扭矩 Yaverage 作为实验指标，对二次万向旋转组合设计实验进行仿真研究。结果表明，当转速为 95 r/min 时，螺旋导程减小率为 60.00%~73.21%，螺旋直径减小率为 86.55%~97.05%，填充率 μ 大于 95%，螺旋扭矩 Yaverage 小于 16 N-m。为进一步提高排肥均匀度，确保排肥精度可控，对单头、双头、三头渐减螺旋排肥装置和普通螺旋排肥装置进行了对比验证实验。结果表明，渐减式螺旋排肥器的排肥精度优于普通螺旋排肥器。此外，还确定三头式的性能最好。还通过随机调整六种转速对三头渐减式螺旋施肥装置进行了验证。实验结果表明，肥料装置的排肥流量与预设值的平均偏差为 3.16%。二者偏差较小，施肥精度较高。通过调节转速可实现排肥量的精确控制，该研究可为螺旋施肥器的改进设计和精确控制提供具体参考。

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来源期刊

Processes Chemical Engineering-Bioengineering

CiteScore

5.10

自引率

11.40%

发文量

2239

审稿时长

14.11 days

期刊介绍： Processes (ISSN 2227-9717) provides an advanced forum for process related research in chemistry, biology and allied engineering fields. The journal publishes regular research papers, communications, letters, short notes and reviews. Our aim is to encourage researchers to publish their experimental, theoretical and computational results in as much detail as necessary. There is no restriction on paper length or number of figures and tables.