Mine cooling power recovery system
US4991998A · kind A · utility
8Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1989 |
| Grant date | Feb 12, 1991 |
| Priority date | — |
| Expiry date | Nov 7, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B2075/027
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A mine cooling power recovery system wherein a low-pressure slurry pump for charging the mud slurry produced in a mine into a pressure changeover feed chamber is arranged in parallel to a warm water charging low-pressure pump and each of outlets of the two pumps has a changeover valve so that a single power recovery system pumps up both the mud slurry and a warm water out of the mine. A slurry sedimentation tank may be provided on the ground surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.