Development and Operation of an Improved Turntable Dust Feeder

Details

• Personal Author:
  Reist PC ; Taylor L
• Description:
  An improved version of a dry dispersion turntable aerosol feeder has been developed which provides greater variation, control, and reliability in aerosol output. The heart of the system is a rotating dust cylinder that permits steady delivery of dust to a turntable groove where it is picked-up by an adjustable aspirator. This design feature eliminates the need for vibrators and ensures a smooth dust flow to the dust pick-up point. Depending on the cylinder diameter, unattended operating time can be greatly increased. The aspirator incorporates an adjustable venturi and pick-up apparatus. By varying venturi adjustment and air pressure, dust pick-up under differing operating conditions can be assured. A large range in aerosol output can be achieved using different groove widths, locations, and turntable speeds. Operational performance tests show steady aerosol output over the delivery range of 100 mg/min to 50 g/min, depending on the size of the feeder. To date, two sizes of the turntable aerosol feeder have been utilized effectively resulting in dust concentrations ranging from 100 µg/m3 to 560 mg/m3. [Description provided by NIOSH]
• Subjects:
  Aerosols Dust Occupational Health Particulate Matter Safety
• Keywords:
  Aerosol Generators Author Keywords: Particles Dispersion Dust Collectors Dust Extraction Dust Feeder Dust Generation Dust Particles Dusts Particulate Dust Particulates

  More +
• ISSN:
  0032-5910
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  North Carolina ; Ohio ; OSHA Region 4 ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DSHEFS - Division of Surveillance, Hazard Evaluations, and Field Studies
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  36-42
• Volume:
  107
• Issue:
  1
• NIOSHTIC Number:
  nn:20020792
• Citation:
  Powder Technol 2000 Jan; 107(1-2):36-42
• Federal Fiscal Year:
  2000
• Peer Reviewed:
  True
• Source Full Name:
  Powder Technology
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:d9b6a96407d65c0b658cb523b20a5bb591e7571d516123f8ea97a3235237c47977571e686cbb0852ba5167af72c43aee567f5a1b28af6672bf2876c025ddbac6
• Download URL:
  https://stacks.cdc.gov/view/cdc/198458/cdc_198458_DS1.pdf
• File Type:
  [PDF - 66.74 KB ]