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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 14522247 - 1 Employee Killed, 8 Others Injured In Combustible Dust Fire

Accident: 14522247 -- Report ID: 0522300 -- Event Date: 05/12/1988
InspectionOpen DateSICEstablishment Name
10243322405/12/19883548Mineral Met, Inc.
Employees #1 and #2 were temporary laborers; Employee #9 worked for an outside trucking firm. Employees #4 through #8 were employees of a company that was processing combustible powders (ferromanganese, etc.) for use in manufacturing welding fluxes. Three production operations were functioning: the #3 screening system, where an inert material is ground, sized, and screened; the dryer, where ferromanganese is stabilized; and the nugget system, where manganese and iron powders are mixed with a "glue" to make "nuggets." A series of explosions occurred, probably originating at the nugget machine where sparks/fire entered the outside bag dust collector through the duct work, causing a violent explosion within the collector. The top of the collector blew, and flaming pieces of metal flew onto a wooden portion of the plant roof. The fire spread rapidly because of the wood roof, the combustible dust/powders in the plant and, possibly, because of ruptured gas lines. Employee #1 was killed and Employees #2 through #9 were hospitalized.
Keywords: fire, dust collector, explosion, spark, combustible dust
Employee # Inspection Age Sex Degree Nature Occupation
1 102433224 Hospitalized injury Fracture Occupation not reported
2 102433224 Hospitalized injury Concussion Occupation not reported
3 102433224 Hospitalized injury Cut/Laceration Occupation not reported
4 102433224 Hospitalized injury Foreign Body Ineye Occupation not reported
5 102433224 Hospitalized injury Burn/Scald(Heat) Occupation not reported
6 102433224 Non Hospitalized injury Cut/Laceration Occupation not reported
7 102433224 Hospitalized injury Cut/Laceration Occupation not reported
8 102433224 Hospitalized injury Burn/Scald(Heat) Occupation not reported
9 102433224 Fatality Burn/Scald(Heat) Occupation not reported

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