Evaluation of Shaker Dust Collector for Use in a Swine Farrowing Barn

Details

• Personal Author:
  Sawvel R
• Description:
  A shaker dust collector was evaluated to 1. determine filter capacity in terms of mass loading, pressure drop, airflow, and runtime; 2. determine particle collection efficiency by size prior to and following repeated loadings. A shaker dust collector was setup in the laboratory to take in contaminated air, collect dust, and exhaust treated air. For each loading test, Arizona road dust (approximately 1 to 200 um) was introduced into the airstream entering the dust collector at an emission rate and duration to simulate 3-months in a swine barn in winter. Filter pressure drop and exhaust velocity pressure were measured throughout loading. Filter collection efficiency was tested using polydisperse solid glass microspheres (approximately 1 to 10 um) and measured with an aerodynamic particle sizer at the startup and end of loadings. Cleaning cycles were run between loading tests. Overall efficiency was 44% for new filter, and ranged from 27% for 1-um particles, increasing to 96% for 10-um particles. Collection efficiency for loaded filter was 99% overall, and 99% over the range of 1 to 10-um particles. Following cleaning, overall efficiency was 91%, and 91% for 1-um particles, increasing to 99% for 10-um particles. Exhaust airflow decreased linearly with pressure drop (R2=0.99) for all three loading tests. At startup, system airflows were approximately 1,700 m3 hr-1 and at shutdown, system airflows were approximately 1,200 m3 hr-1. Significant recovery of filter pressure drop was observed following primary cleanings (p<0.001). The shaker dust collector has adequate capacity to treat swine barn air continuously over a 3-month period at a dust concentration of 1 mg m-3. High collection efficiency (>99%) of particles (dp 1-10 um) was achieved after an initial loading period of approximately 2 days. High collection efficiency (90-99%) was also achieved after cleaning. The engineering control system is recommended for further testing to improve indoor air quality inside a Midwestern farrowing barn during winter. [Description provided by NIOSH]
• Subjects:
  Air Movements Dust Livestock Occupational Health Particulate Matter Safety
• Keywords:
  Air Flow Dust Collection Dust Collectors Filters Livestock Industry Particle Size Particulate Dust Particulates
• Publisher:
  University of Iowa
• Document Type:
  Text
• Funding:
  Cooperative Agreement
• Genre:
  Thesis
• Place as Subject:
  Iowa ; OSHA Region 7
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-117
• NIOSHTIC Number:
  nn:20052652
• Citation:
  Iowa City, IA: University of Iowa, 2014 Aug; :1-117
• Federal Fiscal Year:
  2014
• NORA Priority Area:
  Agriculture, Forestry and Fishing
• Performing Organization:
  University of Iowa, Iowa City
• Peer Reviewed:
  False
• Start Date:
  20010930
• Source Full Name:
  Evaluation of shaker dust collector for use in a swine farrowing barn
• End Date:
  20270929
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:2d3e3d5ac38a213aa3fbe063b3bef6a3d0bd67224b692e76e11c88d82cbf9c89242fab942ccfe45c7da6dbfe7e44e42ea9149176ad8b47ba82060f689a1d0f9d
• Download URL:
  https://stacks.cdc.gov/view/cdc/212152/cdc_212152_DS1.pdf
• File Type:
  [PDF - 8.03 MB ]