Design and experimental evaluation of a flooded-bed dust scrubber integrated into a longwall shearer

Sampurna Arya, Joseph Sottile, James P. Rider, Jay F. Colinet, Thomas Novak, Chad Wedding

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

Continuous mining machines operating in U.S. underground coal mines have, for decades, utilized flooded-bed dust scrubbers for capturing and removing respirable dust generated at the production face. However, the application of dust scrubbers to longwall mining systems has not yet been successful. Considering that nearly 60% of U.S. underground coal production is from longwall mines, the successful application of dust scrubbers to longwall mining systems could have a significant impact on miner health. A full-scale mock-up of a longwall shearer was constructed and equipped with a flooded-bed dust scrubber designed to capture dust produced by the headgate cutting drum. The mockup was installed at the National Institute for Occupational Safety and Health (NIOSH) Longwall Dust Gallery and a series of 40 experiments was conducted to evaluate the scrubber's performance. Results show that the scrubber achieved a 56% reduction of respirable dust in the return airway and a 74% reduction of respirable dust in the walkway area near the shearer. Although these tests were conducted under a controlled environment, the results suggest that a similar scrubber design could be very effective at achieving a significant reduction in respirable dust in longwall mining systems.

Original languageEnglish
Pages (from-to)487-496
Number of pages10
JournalPowder Technology
Volume339
DOIs
StatePublished - Nov 2018

Bibliographical note

Funding Information:
Funding for this research was provided by the Alpha Foundation for the Improvement of Mine Safety and Health (grant number AFC113-10 ). We want to thank personnel from Joy Global, Inc. (now Komatsu America Corp.) and the Tunnel Ridge Longwall Mine (Alliance Coal, LLC) for their assistance.

Publisher Copyright:
© 2018

Keywords

  • Dust control
  • Dust scrubber
  • Flooded-bed scrubber
  • Longwall shearer
  • Underground mining

ASJC Scopus subject areas

  • Chemical Engineering (all)

Fingerprint

Dive into the research topics of 'Design and experimental evaluation of a flooded-bed dust scrubber integrated into a longwall shearer'. Together they form a unique fingerprint.

Cite this