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Smoke, carbon monoxide, and hydrogen chloride production from the pyrolysis of conveyor belting and brattice cloth.

Authors
Egan-MR
Source
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, IC 9304, 1992 Jan; :1-14
NIOSHTIC No.
10011119
Abstract
In an underground mine fire, a toxic mixture of combustion product gases and particulate matter is transported by the ventilating system, endangering everyone downstream. To determine the magnitude of the problem that these toxic combustion products pose, the U.S. Bureau of Mines is investigating the combustion products of typical materials found in underground mines. The total toxicity of the combustion products depends upon the evolving gas species and particulate matter, the amount of material involved, and the ventilation rate. In a simulated mine environment, the products from smoldering polyvinyl chloride (PVC) brattice and conveyor belting were analyzed for gas concentrations and smoke characteristics. The primary toxic gases are hydrogen chloride and carbon monoxide. Smoldering conveyor belts are more detectable than smoldering pvc brattice cloths. These results, combined with previous analyses, are used to estimate relative toxicities, product levels, and detectability of smoldering mine combustibles.
Keywords
Underground-mining; Mining-industry; Coal-mining; Mine-fires; Mine-gases; Fire-hazards; Toxic-gases
CAS No.
630-08-0; 7647-01-0
Publication Date
19920101
Document Type
Information Circular
Fiscal Year
1992
NTIS Accession No.
PB92-185966
NTIS Price
A03
Identifying No.
IC-9304
NIOSH Division
PRC
Source Name
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, IC 9304
State
PA
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