Coal Mine Vacuum Sweeper.
NTIS: PB/247-232 Available for Reference At Bureau Libraries :68 pages
A mobile vacuum sweeper to remove loose coal and coal dust from underground coal mine workings was designed, built, tested, and evaluated. Pickup and conveying rates versus air volumes, velocities, and nozzle shapes were determined for coal rubble in a laboratory pneumatic handling system. A gas-solids separation system was developed and tested in the laboratory capable of separating the solids loading from the vacuum system airstream to the very high degree required to preclude degradation of the ambient mine air. Two designs were made, one for a belt conveyor and one for general district cleanup. The belt cleanup machine was chosen for testing and demonstrated in an underground coal mine performing cleanup work in belt haulageways and on ribs.
CP; Final Contract Report;
NTIS Accession No.
NTIS: PB/247-232 Available for Reference At Bureau Libraries
Envirotech-eimco Min. Mach.