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U.S. Department of Energy
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Foam suppression of respirable coal dust. Final report, November 1969--October 1970

Technical Report ·
OSTI ID:7219320
The report describes research in the control and suppression of respirable coal mine dust in order to prevent coal miners from developing pneumoconiosis. A formulation was developed for making a water-based, high-expansion, and limited stability foam. A horizontal boring machine was used as a laboratory coal mining model for generating coal dust. A modified laboratory foam generator was built. Foam was applied directly to the point at which dust was being formed by the cutter of the boring machine working against a block of coal. Coal dust was sampled with an impinger and analyzed for the particle count and partcle size distribution. Coal dust suppression test results on freshly generated dust demonstrated that in laboratory-scale experiments more than 90 percent of the respirable coal dust could be suppressed by foam. (Author) (GRA)
Research Organization:
Monsanto Research Corp., Dayton, OH (USA)
OSTI ID:
7219320
Report Number(s):
PB-204522; MRC-DA-274
Country of Publication:
United States
Language:
English