In-depth survey report CT-144-21A, Macawber Engineering, Inc. , Maryville, Tennessee

Technical Report · Mon Aug 13 04:00:00 EDT 1984

OSTI ID:5100457

Heitbrink, W A

An in-depth survey of control technology for reducing limestone exposure during bag-opening operations at Macawber Engineering, Incorporated (SIC-3535), Maryville, Tennessee was conducted in April, 1984. The ability of an automatic bag slitter to open bags of very fine limestone (mass median diameter less than 4.0 micrometers) without becoming a dust-emission source was evaluated. Total and respirable dust concentrations before and during bag-slitting operations were measured under the bag-disposal chute, above the bag-disposal tube, at the outlet of the automatic unbagger, next to the bellows, or at a position next to the storage bins. The author suggests that the bag slitter leaks dust. As tested, the automatic bag-opening machine is probably suitable only for handling relatively nontoxic dusts.

• Research Organization: National Inst. for Occupational Safety and Health, Cincinnati, OH (USA). Div. of Physical Sciences and Engineering
• OSTI ID: 5100457
• Report Number(s): PB-85-220796/XAB; CT-114-21A
• Country of Publication: United States
• Language: English

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