Dust control system and method of operation
US4380353A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 1981 |
| Grant date | Apr 19, 1983 |
| Priority date | — |
| Expiry date | Jul 13, 2001 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21F5/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A dust control system for a mining machine, particularly for controlling respirable dust in coal mining operations, comprising a ductwork system having intakes adjacent the cutter head of the mining machine, a fan for drawing air through the ductwork system, a flooded bed scrubber in the ductwork system upstream from the fan for entraining dust, including respirable dust, in the air in droplets of water, air flowing through the scrubber carrying the dust-laden droplets of water downstream from the scrubber, a sump below the ductwork system between the flooded bed scrubber and the fan, a demister in the ductwork system above the sump for separating the dust-laden droplets of water and directing them into the sump, and a pump for pumping the dust-laden water from the sump to a point adjacent the cutting head. A method of controlling dust is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.