[1]沈骝,梁财,陈晓平,等.气力输送中不同物料的流动特性及倾斜管阻力特性[J].东南大学学报(自然科学版),2014,44(5):975-980.[doi:10.3969/j.issn.1001-0505.2014.05.018]
 Shen Liu,Liang Cai,Chen Xiaoping,et al.Flow behaviors and resistance properties of inclined pipe for different materials in pneumatic conveying[J].Journal of Southeast University (Natural Science Edition),2014,44(5):975-980.[doi:10.3969/j.issn.1001-0505.2014.05.018]
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气力输送中不同物料的流动特性及倾斜管阻力特性()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
44
期数:
2014年第5期
页码:
975-980
栏目:
化学化工
出版日期:
2014-09-20

文章信息/Info

Title:
Flow behaviors and resistance properties of inclined pipe for different materials in pneumatic conveying
作者:
沈骝梁财陈晓平许盼徐贵玲袁高洋韩泽洲赵长遂
东南大学能源热转换及其过程测控教育部重点实验室, 南京 210096; 东南大学能源与环境学院, 南京 210096
Author(s):
Shen Liu Liang Cai Chen Xiaoping Xu Pan Xu GuilingYuan Gaoyang Han Zezhou Zhao Changsui
Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University, Nanjing 210096, China
School of Energy and Environment, Southeast University, Nanjing 210096, China
关键词:
高压 密相 气力输送 阻力特性 倾斜管
Keywords:
high pressure dense phase pneumatic conveying resistance properties inclined pipe
分类号:
TQ536.1
DOI:
10.3969/j.issn.1001-0505.2014.05.018
摘要:
在输送压力高达3.0 MPa、差压1.2 MPa的实验台上,进行了不同粒径、不同种类物料的高压密相气力输送实验,研究了物料种类、物性和倾斜角度对倾斜管阻力特性的影响规律.通过剪切实验研究了实验物料的流动特性,并结合剪切实验与输送实验的结果研究物料的流动性和倾斜管阻力特性间的关联.结果表明:在相同粒径的条件下无烟煤的流动性比石油焦好;在相同表观气速下,倾斜管压降梯度随着质量流量的增大而增大;在相同的表观气速和质量流量下,平均粒径大的同种物料倾斜管压降梯度大于平均粒径小的物料;在相同输送条件下,相同粒径的石油焦颗粒倾斜管压降梯度低于无烟煤,流动性对倾斜管压降梯度的影响不显著;在0°~60°范围内、相同表观气速下,倾斜角越大,倾斜管压降梯度越大.
Abstract:
Experiments of high-pressure dense-phase pneumatic conveying of different kinds of materials with different sizes were carried out. The conveying pressure was up to 3.0 MPa. The total pressure differential was up to 1.2 MPa. Effects of material categories, material properties and inclination angle on the resistance properties of inclined pipe were studied. Flow properties of experimental materials were measured by carrying out shear tests. Relationships between flow properties and resistance properties of inclined pipe were studied by combining the results of shear tests with pneumatic conveying experiments. Results show that the flowability of anthracite is better than that of petroleum coke with the same size. Pressure gradient through inclined pipe increases with increasing mass flow rate under the same superficial velocity. Pressure gradient through inclined pipe conveying coarse material is bigger than fine material of the same material. Pressure gradient through inclined pipe conveying petroleum coke is smaller than that for anthracite with the same particle size under the same operating parameter. Flowability contributes little to the difference in pressure gradient. Pressure gradient through inclined pipe increases with increasing inclination angle from 0° to 60°.

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备注/Memo

备注/Memo:
收稿日期: 2014-02-16.
作者简介: 沈骝(1991—),男,硕士生;梁财(联系人),男,博士,副教授,博士生导师,liangc@seu.edu.cn.
基金项目: 国家重点基础研究发展计划(973计划)资助项目(2010CB227002).
引用本文: 沈骝,梁财,陈晓平,等.气力输送中不同物料的流动特性及倾斜管阻力特性[J].东南大学学报:自然科学版,2014,44(5):975-980. [doi:10.3969/j.issn.1001-0505.2014.05.018]
更新日期/Last Update: 2014-09-20