A Comparison of Different Water Sprays at High Pressures for Respirable Coal Dust Knockdown Ability in a Confined Chamber

Details

• Personal Author:
  Beck, Timothy W. ; Jiang H ; Klima SS ; Zheng Y
• Description:
  Researchers at NIOSH's Pittsburgh Mining Research Division (PMRD) performed comparative testing of six different water sprays at pressures ranging from 689 kPa (100 psi) to 6,895 kPa (1,000 psi) in a 14.5-m3 (512-ft3) confined dust chamber. Testing was conducted to determine the effect of various pressures on each spray's respirable coal dust knockdown ability. It is known that higher water pressures are typically preferred for lowering airborne dust concentrations, but it was important to determine at what pressure range the dust knockdown ability of each spray plateaus or reaches its minimum dust concentration. Results from this testing showed that several sprays saw up to 100% decrease in dust concentrations during the five-minute water spray testing period, with some occurring well below the maximum 6,895 kPa (1,000 psi) spray pressure. [Description provided by NIOSH]
• Subjects:
  Dust Mining Occupational Health Safety
• Keywords:
  Author Keywords: Coal Mining Black Lung Coal Dust Dust Suppression Health And Safety High Pressure Mining Industry Respirable Dust Respirable Dust Control Water Sprays
• Series:
  Mining Publications
• ISBN:
  9781713872368
• Publisher:
  Society for Mining, Metallurgy & Exploration (SME)
• Document Type:
  Text
• Genre:
  Proceedings
• Place as Subject:
  OSHA Region 3 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PMRD - Pittsburgh Mining Research Division
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-3
• NIOSHTIC Number:
  nn:20067868
• Citation:
  MineXchange: 2023 SME Annual Conference and Expo, February 26-March 1, 2023, Denver, Colorado, preprint 23-039. Englewood, CO: Society for Mining, Metallurgy & Exploration, 2023 Feb; :1-3
• Federal Fiscal Year:
  2023
• NORA Priority Area:
  Mining
• Peer Reviewed:
  False
• Source Full Name:
  MineXchange: 2023 SME Annual Conference and Expo, February 26-March 1, 2023, Denver, Colorado, preprint 23-039
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:6053f6adbf6040d3e5345f5a08fe40917ca5b0fa3828ceed7e36f70efea4bd7bf940af3ec749d41e1dbcb5a1a678fdbe66c328f5b120f3dc06fe4706fa2fb4f1
• Download URL:
  https://stacks.cdc.gov/view/cdc/215611/cdc_215611_DS1.pdf
• File Type:
  [PDF - 160.48 KB ]