电熔镁粉尘在90°弯管内的磨损与运动特性分析
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- 英文论文题名：Analysis on the Wear and Motion characteristics of the fused Magnesium Dust in the 90°Elbow
- 论文作者：陈长征 ; 吴振波 ; 李宗波
- 英文论文作者：CHEN Chang-zheng ; WU Zhen-bo ; LI Zong-bo ; Shenyang University of Technology
- 年：2016
- 作者机构：沈阳工业大学机械工程;
- 论文关键词：电熔镁粉尘 ; 90°弯管 ; 计算流体动力学 ; 运动状态 ; 碰撞特性 ; 管道磨损
- 英文论文关键词：Fused magnesium dust ; 90°elbow ; CFD ; movement ; pipe wear
- 会议召开时间：2016-07-28
- 会议录名称：第二十七届全国振动与噪声应用学术会议论文集
- 语种：中文
- 分类号：X781.5;O35
- 学会代码：ZDZD
- 会议名称：第二十七届全国振动与噪声应用学术会议
- 会议地点：中国黑龙江哈尔滨
- 主办单位：中国振动工程学会振动与噪声控制专业委员会
- 学会名称：中国振动工程学会振动与噪声控制专业委员会
- 页数：3
- 文件大小：412k
- 原文格式：D
- 会议级别：全国
摘要
针对电熔镁粉尘在气力输送过程中特别是90°弯管部位易被冲刷的问题,利用计算流体动力学(CFD)对90°弯管内电熔镁粉尘气力输送过程进行模拟仿真。可以清晰地看到电熔镁粉尘在90°弯管中的运动状态、碰撞特性及相关的力学特性,这是在实验中无法做到的。结果表明:电熔镁粉尘在90°管道中的运动轨迹、磨损位置和磨损强度随着外界条件的变化而改变。并在输送过程中遵循基本一致的变化规律。同时,粉尘颗粒在离心力和重力的作用下与管壁的碰撞是造成管道磨损的主要原因。
For the fused magnesium dust in the 90°elbow erosion during the pneumatic conveying,the process of the pneumatic conveying in the 90°curved fused magnesium dust is simulated using CFD approach. The particle's movement、collision characteristics and the mechanical properties of the related can be clearly observed in the 90°curved fused magnesium dust which can't do in the experiment.The results show that, the fused magnesium dust in the 90°elbow movement trajectory、abrasive position and attrition strength change along with the various external conditions following the changing rule of basic consistent during the pneumatic conveying.Simultaneously, the main reason of pipe wear is dust particle and tube wall of the collision under the action of centrifugal force and gravity.
For the fused magnesium dust in the 90°elbow erosion during the pneumatic conveying,the process of the pneumatic conveying in the 90°curved fused magnesium dust is simulated using CFD approach. The particle's movement、collision characteristics and the mechanical properties of the related can be clearly observed in the 90°curved fused magnesium dust which can't do in the experiment.The results show that, the fused magnesium dust in the 90°elbow movement trajectory、abrasive position and attrition strength change along with the various external conditions following the changing rule of basic consistent during the pneumatic conveying.Simultaneously, the main reason of pipe wear is dust particle and tube wall of the collision under the action of centrifugal force and gravity.
引文
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[2]杨永鹤.菱镁产业结构升级的途经分析[J].矿业工程.2016,14(1):65-67;
[3]卢州,刘雪东,潘兵.基于CFD-DEM方法的柱状颗粒在弯管中输送过程的数值模拟[J].中国粉体技术.2011,17(5):65-69;
[4]曹会敏,张少峰,高聪,张国民.多相流颗粒碰撞磨损的研究[J].管道技术与设备.2008,2008(1):20-21;
[5]EL-BEHERY S M,HAMED M H,EL-KADI M A,et al.CFD prediction of air-solid flow in 180°curvd duct[J].Powder Technology,2009,19(1):130-142
[6]K.Mohanarangam,Z.F.Tian,J.Y.Tu.Numerical simulation of turbulent gas-particle flow in a 90°bend:Eulerian-Eulerian approach[J].Computers and Chemical Engineering,2008,32(3):561-571