摘要
针对油莎豆脱皮困难的问题,利用Solidworks构建螺旋搓揉式脱皮机,结合EDEM离散元软件对脱皮滚筒内物料运动过程进行模拟分析,结果得出:脱皮滚筒与水平面夹角对颗粒平均速度变化影响呈正相关关系。夹角越大,颗粒平均速度变化越明显。搓揉辊组间错位距离对颗粒的平均速度变化有一定影响。当辊组间错位距离小于45 mm时,错位距离越大,颗粒平均速度变幅越大。搓揉爪圆弧段曲率半径对颗粒平均速度变化影响不显著。但在搓揉过程中,曲率半径越大,颗粒受作用时间越长。研究表明,当滚筒与水平面夹角为5°,搓揉辊组间错位距离为45 mm,搓揉爪圆弧段曲率半径为100mm时,脱皮机滚筒内颗粒平均速度变化和颗粒分布达到最优。研究结果不仅为优化螺旋搓揉式脱皮机设计和工艺条件提供了理论依据,而且对提高油莎豆的脱皮效率和榨油质量具有应用价值。此外,该研究方法也为其他类似油莎豆的农作物颗粒脱皮/脱壳机理的研究提供了借鉴。
To address the challenges of peeling Cyperus esculentus,a spiral kneading peeling machine was designed using Solidworks,and the material motion within the peeling drum was simulated using EDEM discrete element software.The results show that there is a positive correlation between the angle of the peeling drum relative to the horizontal plane and the the average particle velocity.A larger angle results in more pronounced changes in particle velocity.The offset distance between kneading rollers has a certain influence on the average particle velocity.When the dislocation distance between kneading rollers group is less than 45mm,an increase in the distance leads to a greater amplitude of velocity variation.The curvature radius of the circular section of the kneading claw has insignificant impact on the average velocity of the particles;however,during the kneading process,a larger curvature radius increases the duration of particle interaction.The research shows that when the angle between the drum and the horizontal plane is 5°,the offset distance between roller groups is 45 mm,and the curvature radius of the circular section of the kneading claw is 100 mm,the average particle velocity and particle distribution in the cylinder of the peeling machine are optimized.The research findings not only provide a theoretical basis for optimizing the design and process conditions of spiral kneading peeling machines,but also have practical value for improving the peeling efficiency and oil extraction quality of Cyperus esculentus.Moreover,the research method also serves as a reference for the research on the peeling/shelling mechanisms oother crops similar to Cyperus esculentus.
作者
李寒
吴伟中
唐静静
吴昊翔
LI Han;WU Wei-zhong;TANG Jing-jing;WU Hao-xiang(College of Mechanical and Electrical Engineering,Henan University of Technology,Zhengzhou,Henan 450001,China)
出处
《粮油食品科技》
北大核心
2025年第3期172-181,共10页
Science and Technology of Cereals,Oils and Foods
基金
河南省重大科技专项课题“高产优质油莎豆新品种选育与产业化示范”(211100110100-3)。
关键词
油莎豆
螺旋搓揉式脱皮机
脱皮运动分析
离散元
仿真
Cyperus esculentus
spiral kneading peeling machine
analysis of peeling motion
discrete element method
simulation
作者简介
第一作者:李寒,男,1998年出生,在读硕士生,研究方向为现代机械设计理论及方法,E-mail:1245875909@qq.com;通信作者:吴伟中,男,1972年出生,硕士,副教授,研究方向为粮油加工装备智能技术,E-mail:wuweizh@126.com。
