田祥州1,贺福强1,陈发江2,黄易周1,詹璐歆1
(1. 贵州大学 机械工程学院,贵州 贵阳 550025;2. 贵州晶木建材有限公司,贵州 贵阳 550025)
DOI:10.13732/j.issn.1008-5548.2023.02.004
收稿日期:2022-08-23,修回日期:2022-10-08,在线出版时间:2023-01-20 11:01。
基金项目:贵州省科技计划项目,编号:黔科合支撑[2020]2Y067。
第一作者简介:田祥州(1996—),男(土家族),硕士研究生,研究方向为多体动力学。E-mail:15121618276@163.com。
通信作者简介:贺福强(1975—),男,副教授,博士,研究方向为机械视觉检测与模式识别技术、智能制造技术。E-mail:1120351604@qq.com。
摘要:以木屑、氯化镁、氧化镁、卤水为搅拌原料,以聚氯乙烯树脂粉、尿素为添加剂,研究立轴行星式搅拌机叶片安装角度、搅拌轴转速对搅拌效果的影响,采用离散元分析软件模拟仿真混合物料搅拌过程,研究叶片不同安装角度、搅拌轴不同转速情况下的物料混合效果;对比分析同等情况下氯化镁颗粒的离散系数大小,确定搅拌的最优参数;对生产的木质板材进行力学性能验证。结果表明:立轴行星式搅拌机叶片的安装角度为45°、搅拌轴转速为30 r/min时搅拌效果最佳。
关键词:立轴行星式搅拌机;离散元法;叶片安装角度;搅拌轴转速;离散系数
Abstract:Using sawdust, magnesium chloride, magnesium oxide and brine as stirring raw materials, and polyvinyl chloride tree powder and urea as additives, the influence of the installation angle of the vertical shaft planetary mixer blade and the speed of the stirring shaft on the mixing quality was studied.The EDEM software was used to simulate mixing process of mixed materials and the mixing quality of materials under different blade installation angles and stirring shaft rotation speeds were studied. By comparing and analyzing the discrete coefficient of magnesium chloride particles under the same conditions, the optimal stirring parameters were determined. The mechanical properties of the wooden plates were verified. The results show that the optimal mixing quality is the best when the blade installation angle of the vertical shaft planetary mixer is 45° and the stirring shaft speed is 30 r/min.
Keywords:vertical shaft planetary mixer; discrete element method; blade installation angle; rotating speed of stirring shaft; discrete coefficient
参考文献(References):
[1]董玉刚, 林亮亮, 孔鲜宁,等.基于EDEM的双卧轴搅拌机搅拌工艺对比研究[J].水泥工程, 2016(2): 87-90.
[2]施进发, 高志龙, 杨杰,等.基于EDEM的双卧轴搅拌机混合度研究[J].筑路机械与施工机械化, 2020, 37(增1): 126-129.
[3]孔鲜宁, 杨宏晓, 李耀.基于EDEM的双卧轴搅拌机合理充盈率探究[J].水泥工程, 2015(5): 9-12.
[4]郭良, 赵悟, 王敬,等.基于EDEM双立轴振动搅拌机叶片安装角度仿真分析及试验研究[J].现代制造技术与装备, 2018(11): 3-6.
[5]ALIAN M, EIN-MOZAFFARI F, UPRETI S R.Analysis of the mixing of solid particles in a plowshare mixer via discrete element method(DEM)[J].Powder Technology, 2015, 274: 77-87.
[6]毛娅, 范雄, 江智.基于EDEM的连续性立式搅拌机混合特性研究[J].计算机仿真, 2018, 35(12): 181-184,415.
[7]SAKAI M, SHIGETO Y, BASINSKAS G, et al.Discrete element simulation for the evaluation of solid mixing in an industrial blender[J].Chemical Engineering Journal, 2015, 279: 821-839.
[8]RADL S, KALVODA E, GLASSER B J, et al.Mixing characteristics of wet granular matter in a bladed mixer[J].Powder Technology, 2010, 200(3): 171-189.
[9]陈勇棠, 蒲明辉.基于UGNX的外啮合行星搅拌机运动特性研究[J].柳州职业技术学院学报, 2017, 17(4): 114-120.
[10]胡国明.颗粒系统的离散元素法分析仿真: 离散元素法的工业应用与Edem软件简介[M].武汉: 武汉理工大学出版社, 2010.
[11]周志勇.基于DEM的强力混合机混匀过程模拟及结构优化[D].湘潭:湘潭大学, 2014.
[12]CHAO J W, XIE H X, LIU X D, et al.Analysis of the mixing of solid particles in a vertical cylindrical mixer via discrete element method(DEM)[J].Journal of Simulation, 2017, 5(4):47-51.
[13]李少华, 朱明亮, 张立栋,等.回转装置内三组元颗粒径向混合评价方法分析[J].化工进展, 2013, 32(6): 1224-1229.
[14]赵利军, 冯忠绪, 姚运仕,等.搅拌机叶片安装角的确定方法[J].长安大学学报(自然科学版), 2006(5): 99-102.
[15]冯忠绪, 王卫中, 姚运仕,等.搅拌机合理转速研究[J].中国公路学报, 2006(2): 116-120.