Paper Title:
The Investigation of Back-Mixing Particles near Dust Outlet in Cyclone Separator with Tangential Inlet
  Abstract

Based on experimental and computational fluid dynamics analysis, the phenomenon of particle back-mixing near the dust outlet in cyclone separator with tangential inlet was studied. The results show that particle back-mixing appears near the dust outlet geometry. Particle back-mixing can be divided into dust hopper back-mixing and discharge cone back-mixing for different generation mechanism. The upward flow coming from dust hopper, which occupies 17.7% of the inlet gas, can induce dust hopper back-mixing. The particle mass flow rate that caused by dust hopper back-mixing occupies 46.6% of total inlet particle mass flow rate. Precessing vortex core, bias flow and high turbulent intensity near the dust outlet can induce discharge cone back-mixing. For both dust hopper back-mixing and discharge cone back-mixing, particle back-mixing is serious near the dust outlet geometry, which occupies 56.8% of total inlet particle mass flow rate. Particle which is smaller than 18μm can mix backward. The axial distribution of particle concentration decreases sharply in a range of 1.5 D (cyclone diameter) height above the dust discharge port. At last, only 2.6% of back-mixing particles with diameter no bigger than 13μm escape from vortex finder. This effect on separator efficiency increases with the particle diameter decreases.

  Info
Periodical
Advanced Materials Research (Volumes 239-242)
Edited by
Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He
Pages
2142-2148
DOI
10.4028/www.scientific.net/AMR.239-242.2142
Citation
H. M. Tan, J. J. Wang, Y. H. Jin, "The Investigation of Back-Mixing Particles near Dust Outlet in Cyclone Separator with Tangential Inlet", Advanced Materials Research, Vols. 239-242, pp. 2142-2148, 2011
Online since
May 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Ning Ning Xing, Wei Lin Zhao
Abstract:A new type cyclone with oblique top, transitional volute chamber, eccentric inner cylinders and sloping outlet were designed and manufactured...
263
Authors: Ying Zhang, Zhen Wei Zhang
Chapter 16: Complex Electro-Mechanical System Design
Abstract:This paper mainly focuses on the numerical simulation of flow velocity aiming to obtain the velocity distribution of flow in the cyclone. The...
2529
Authors: Cai Jin Wu, Zheng Fei Ma, Yong Yang
Chapter 1: Mechanical Science and Engineering
Abstract:The three-dimension flow field and the separation efficiency of the inclined cut-in double-inlet cyclone were simulated numerically with...
341