| FJC浮选机充气搅拌装置内流体状态的分析 |
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| 引用本文： | 周伟,朱金波,蔡川川,王海新.FJC浮选机充气搅拌装置内流体状态的分析[J].煤炭加工与综合利用,2012(2):7-10. |
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| 作者姓名： | 周伟 朱金波 蔡川川 王海新 |
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| 作者单位： | 1. 安徽理工大学材料科学与工程学院,安徽淮南,282001
2. 唐山国华科技有限公司选煤技术研究所,河北唐山,063020 |
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| 摘 要： | 介绍了FJC系列煤用喷射式浮选机核心部件充气搅拌装置的结构特点及工作原理;利用射流理论分析了充气搅拌装置内流体状态,并通过粒子图像测速(PIV)试验,分析了喉管内流体的速度矢量分布和涡量分布情况,证明充气搅拌装置内流体运动符合有限空间射流运动,同时还存在回流区,致使喉管内能量损失严重。
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| 关 键 词： | 充气搅拌装置 射流理论 PIV试验 有限空间射流 |
Analysis of the dynamic state of fluid within the aeration-mixing facility in FJCA flotation machine |
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| Affiliation: | ZHOU Wei et al.(Anhui University of Science and Technology Dept of Materials Science and Engineering,Huainan Anhui 282001,China) |
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| Abstract: | Introduced is the structural feature and working principle of the key part of FJCA series jet flotation machine,the aeration-mixing facility;the dynamic state of fluid within the aeration-mixing facility analyzed by the theory of jet;analyzed is also the vector distribution and vortex distribution of fluid within the throat pipe by PIV test,i.e.,particle image velocity measurement;it was denoted that,the fluid motion within the aeration-mixing facility is in line of jet flow in limited space,leading to serious high energy lost. |
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| Keywords: | aeration-mixing facility theory of jet PIV test jet flow confined in limited space |
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