Computational fluid dynamics (CFD) modeling of free-surfaces and particle capture in a vortecone scrubber system scaled for installation on continuous miners

A. R. Kumar, O. A. Velasquez, S. Schafrik, W. C. Wedding

Research output: Contribution to conferencePaperpeer-review

Abstract

Continuous miners are often equipped with a flooded-bed dust scrubber to clean the air from close to an active underground coal mining face. However, its impingement screen is prone to clogging due to an accumulation of dust, thereby lowering the scrubber's efficiency and potentially exposing the mine workers to higher levels of dust. Fans can compensate for the increased resistance by varying their operating parameters, but the scrubber screen needs significant maintenance which leads to downtime. The authors have proposed a suitably sized Vortecone as an alternative to the conventional flooded-bed dust scrubber system. Water is used as the filter medium, which is replaced and recycled continuously. Preliminary CFD investigations of Vortecone scrubbers have indicated higher cleaning efficacies, especially in the respirable range. This paper presents the results including the flow characteristics and capture efficacies of a full-scale Vortecone. Multi-phase flows, including free-surface modeling and particle tracking methods, have been adopted.

Original languageEnglish
StatePublished - 2018
Event2018 SME Annual Conference and Expo and 91st Annual Meeting of the SME-MN Section - Vision, Innovation and Identity: Step Change for a Sustainable Future - Minneapolis, United States
Duration: Feb 25 2018Feb 28 2018

Conference

Conference2018 SME Annual Conference and Expo and 91st Annual Meeting of the SME-MN Section - Vision, Innovation and Identity: Step Change for a Sustainable Future
Country/TerritoryUnited States
CityMinneapolis
Period2/25/182/28/18

Bibliographical note

Publisher Copyright:
Copyright © 2018 by SME.

Keywords

  • Computational fluid dynamics
  • Free-surface modeling
  • Particle tracking
  • Scrubbing systems
  • Vortecone

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

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