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In-mine Tests for Wetting Agent Effectiveness.

Authors
Kost-JA; Shirey-GA; Ford-CT
Source
NTIS: PB/82-183344 :190 pages
Link
NIOSHTIC No.
10002340
Abstract
The objective of this research was to determine if the addition of a surfactant (wetting agent) to the water used for dust control in underground coal mines results in the reduction of airborne dust. Laboratory wettability tests (including the capillary rise test, a coal dust sinking test, and zeta potential measurements) were used to select a coal seam surfactant combination for in-mine testing. Four surfactants were selected for underground testing: surfynol 465, aerosol ma-80, DC-13, and dustallay. The underground tests in the lower Kittanning Seam, Indiana County, Pennsylvania, involved a Wilcox Mark 20 auger mining system equipped with spray nozzles located on the cutting augers, conflow venturi sprays, and a spray manifold. Respirable dust samples were provided by MSA Model G personal samplers and Simslin II instantaneous dust monitors; total airborne dust samples were provided by MSA Model G samplers with Unico filter cassettes. Based on data obtained from 24 test periods, surfactants, compared with plain water, reduced the airborne respirable dust an average of 27 percent and total airborne dust an average of 36 percent.
Publication Date
19800101
Document Type
CP; Final Contract Report;
Fiscal Year
1980
NTIS Accession No.
PB82-183344
NTIS Price
A10
Identifying No.
OFR 30-82
NIOSH Division
TCRC;
Source Name
NTIS: PB/82-183344
State
IN; PA;
Performing Organization
Bituminous Coal Research Inc.
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