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U.S. Department of Energy
Office of Scientific and Technical Information

Dust control at longwalls with water infusion and foam. Technical progress report through November 30, 1982

Technical Report ·
OSTI ID:6805191
Foam spray equipment and materials for dust suppression on longwall double drum shearer faces have been procured. This equipment includes metering pumps, foam generators and mounting brackets, foam solutions, flow meters, real time and gravimetric sampling equipment, hoses and valve banks. Initial tests have been conducted in the laboratory with three types of generators and five types of foam solutions. Based on these tests, Senior Conflow's cluster spray and Onyx Chemical Company's millifoam solution have been selected. For pumping foam solution to the shearer, Jon Bean's 2 hp, 120 VAC single-phase ceramic lined piston pump has been selected. For field tests, equipment has been installed underground in Dobbin mine in Upper Freeport seam on Eickhoff EDW 300 double drum shearer. Foamspray tests have been conducted. Real time and gravimetric dust samples have been collected. Real time sampling results indicate a dust level reduction of up to 37 percent with foam spray compared to the base case of water sprays.
Research Organization:
Occidental Research Corp., Irvine, CA (USA)
DOE Contract Number:
AI01-81FE00016
OSTI ID:
6805191
Report Number(s):
DOE/FE/00016-T1; ON: DE83005313
Country of Publication:
United States
Language:
English