Open Access

ARTICLE

Numerical Simulation of Dust Removal in the Cyclone Collector of a Straw Crusher Based on a Discrete Phase Model

Zhuang Wu^1,2, Chang Su^1,2,*, Hua Xu^1,2, Liu Wang^1,2

1 State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mine, Anhui University of Science and Technology, Huainan, 232001, China
2 School of Mechanical Engineering, Anhui University of Science and Technology, Huainan, 232001, China

* Corresponding Author: Chang Su. Email:

(This article belongs to the Special Issue: Simulation of the Structure-Fluid Interaction and Heat Transfer)

Fluid Dynamics & Materials Processing 2023, 19(5), 1143-1157. https://doi.org/10.32604/fdmp.2022.022496

Received 13 March 2022; Accepted 13 July 2022; Issue published 30 November 2022

Abstract

The cyclone dust collector is an important subsystem of straw crushers used in agriculture. In the present study, a new type of dust collector with involute morphology is proposed to obtain better dust removal efficiency with respect to that of classical tangential and spiral dust collectors. A discrete phase model (DPM) method is used in synergy with a turbulence model, and the SIMPLE algorithm to simulate the flow field inside the dust collector and the related particle dynamics. It is shown that the internal flow field features a primary swirl, a secondary swirl and blockage effects. Moreover, for the involute dust collector, the tangential velocity in the initial stage and the pressure in the high-pressure area are larger than those obtained for the classical types. The dust removal efficiency is 37.11%, 25.3%, and 16.37% for the involute type dust collector, the tangential type and the spiral type, respectively.

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Graphic Abstract

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