Article(id=1242132129442766946, tenantId=1146029695717560320, journalId=1146031591421210625, issueId=1242132120861220912, articleNumber=null, orderNo=8, doi=10.3981/j.issn.1000-7857.2014.17.006, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1392307200000, receivedDateStr=2014-02-14, revisedDate=1395676800000, revisedDateStr=2014-03-25, acceptedDate=null, acceptedDateStr=null, onlineDate=1403241865217, onlineDateStr=2014-06-20, pubDate=1403020800000, pubDateStr=2014-06-18, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1403241865217, onlineIssueDateStr=2014-06-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774076977354, creator=sys-migrate, updateTime=1774076977354, updator=sys-migrate, issue=Issue{id=1242132120861220912, tenantId=1146029695717560320, journalId=1146031591421210625, year='2014', volume='32', issue='17', pageStart='1', pageEnd='95', issueExtLink='null', onlineDate='null', pubDate='1403020800000', pubDateStr='2014-06-18', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=3, issueType=-1, specialIssue=null, createTime=1774076975308, creator='sys-migrate', updateTime=1774076975308, updator='sys-migrate', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=41, endPage=45, ext={EN=ArticleExt(id=1242132134329135436, articleId=1242132129442766946, tenantId=1146029695717560320, journalId=1146031591421210625, language=EN, title=Particle Characters in the Gravitational Classification Zone of the SLK Classifier, columnId=1242116080374710456, journalTitle=Science & Technology Review, columnName=Articles, runingTitle=null, highlight=null, articleAbstract=The particle gravitational classification process is one of the important factors affecting the centrifugal classification performance of a classifier. To understand the particle motion characters in the gravitational classification zone of the classifier, an SLK5500 classifier is chosen as the object, and particle motion equations are built in the y direction and x direction by analyzing the action forces on the particle. And theoretical analysis is made to explore particle characters in the y and x directions on the basis of the particle motion equations. According to the computational fluid dynamics theory, the changing rules of gas velocities in the y and x directions of the gravitational classification zone are investigated, and particle trajectories of different diameters are studied. The theoretical analysis and simulation result show that in the gravitational classification zone, the gas velocity increases progressively in the y direction, where particle motion is a variable acceleration motion with an increasing acceleration; the gas velocity decreases from the return cone near wall terminal to the far wall, and the particle motion in the x direction is a variable acceleration motion with a decreasing acceleration. This research has provided a reference and data for the classifier structure design., authors=ZHAO Dongmei1 , TONG Cong2 , authorsList=ZHAO Dongmei, TONG Cong, authorCompany=1. College of Manufacturing Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China;y 向和x 向颗粒运动方程，通过理论分析探索了颗粒在y 向和x 向的运动特性。运用计算流体力学理论，考察重力分级区内气流速度在y 向和x 向的变化规律，研究不同粒径颗粒的运动轨迹。结果表明，重力分级区内气流速度在y 向上递增，颗粒在y 向做速度不断增大的变加速运动；气流速度在x 向上由返料锥近壁端向远壁端递减，颗粒在x 向做速度不断减小的变减速运动。研究结果可为选粉机的设计提供理论参考和数据基础。, authors=赵冬梅1 , 童聪2 , authorsList=赵冬梅, 童聪, authorCompany=1. 西南科技大学制造科学与工程学院, 绵阳 621010;
科技导报
|研究论文
2014
, 32
(17) :
41
-45
SLK涡流选粉机重力分级区内颗粒的运动特性
全屏
赵冬梅1 , 童聪2
作者信息
1. 西南科技大学制造科学与工程学院, 绵阳 621010;
作者简介:
赵冬梅，讲师，研究方向为机械制造及自动化，电子信箱：zdongmei@swust.edu.cn
Particle Characters in the Gravitational Classification Zone of the SLK Classifier
ZHAO Dongmei1 , TONG Cong2
Affiliations
1. College of Manufacturing Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China;
出版时间: 2014-06-18
doi: 10.3981/j.issn.1000-7857.2014.17.006
文章导航
选粉机内颗粒的重力分级对后续离心分级有重要影响。为研究颗粒在选粉机重力分级区内的运动特性，在对颗粒进行受力分析的基础上，分别建立y 向和x 向颗粒运动方程，通过理论分析探索了颗粒在y 向和x 向的运动特性。运用计算流体力学理论，考察重力分级区内气流速度在y 向和x 向的变化规律，研究不同粒径颗粒的运动轨迹。结果表明，重力分级区内气流速度在y 向上递增，颗粒在y 向做速度不断增大的变加速运动；气流速度在x 向上由返料锥近壁端向远壁端递减，颗粒在x 向做速度不断减小的变减速运动。研究结果可为选粉机的设计提供理论参考和数据基础。
SLK 涡流选粉机
/
重力分级区
/
颗粒运动特性
/
变加速
The particle gravitational classification process is one of the important factors affecting the centrifugal classification performance of a classifier. To understand the particle motion characters in the gravitational classification zone of the classifier, an SLK5500 classifier is chosen as the object, and particle motion equations are built in the y direction and x direction by analyzing the action forces on the particle. And theoretical analysis is made to explore particle characters in the y and x directions on the basis of the particle motion equations. According to the computational fluid dynamics theory, the changing rules of gas velocities in the y and x directions of the gravitational classification zone are investigated, and particle trajectories of different diameters are studied. The theoretical analysis and simulation result show that in the gravitational classification zone, the gas velocity increases progressively in the y direction, where particle motion is a variable acceleration motion with an increasing acceleration; the gas velocity decreases from the return cone near wall terminal to the far wall, and the particle motion in the x direction is a variable acceleration motion with a decreasing acceleration. This research has provided a reference and data for the classifier structure design.
SLK classifier
/
gravitational classification zone
/
particle character
/
variable acceleration
赵冬梅, 童聪.
SLK涡流选粉机重力分级区内颗粒的运动特性.
科技导报,
2014
, 32
(17)
: 41
-45
.
DOI: 10.3981/j.issn.1000-7857.2014.17.006
ZHAO Dongmei, TONG Cong.
Particle Characters in the Gravitational Classification Zone of the SLK Classifier[J].
Science & Technology Review ,
2014
, 32
(17)
: 41
-45
.
DOI: 10.3981/j.issn.1000-7857.2014.17.006
2014年第32卷第17期
PDF下载
357
109
引用本文
BibTeX
文章信息
doi: 10.3981/j.issn.1000-7857.2014.17.006
接收时间：2014-02-14
首发时间：2014-06-20
出版时间：2014-06-18
收稿日期：2014-02-14
修回日期：2014-03-25
https://castjournals.cast.org.cn/joweb/kjdb/CN/10.3981/j.issn.1000-7857.2014.17.006
引用本文
BibTeX
2种不同金属材料的力学参数
科 属数 种数 占总种数比例 属 种数 占总种数比例 鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78 小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39 多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39 红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87 小菇属 Mycena 11 5.26 光柄菇属 Pluteus 5 2.39 红菇属 Russula 17 8.13 栓菌属 Trametes 5 2.39
关闭全屏
BibTeX
EndNote
RefWorks
TxT
PDF下载
全屏
357
109
关闭全屏
北京市海淀区学院南路86号
010-62199257（仅加盟咨询）
qkjq@cast.org.cn
