Deep mine cooling system

Patent · Tue Nov 06 04:00:00 EST 1984

OSTI ID:6149329

Conan, J

A deep mine cooling system comprising a compressor supplied with air and rotatively driven by a motor and an expansion turbine supplied with compressed air from said compressor and driving an actuating unit, wherein the compressed air, after leaving the compressor but prior to reaching the expansion turbine, passes through a steam generator whose output provides the energy required to operate an absorption refrigeration machine used to cool utility water for mining, said compressed air on leaving the steam generator going to a first heat exchanger in which it yields calories to a water circuit comprising a second heat exchanger, said second heat exchanger giving off the calories absorbed by the water in the first heat exchanger to the air fed by the second heat exchanger to a drying cell that is regenerated by said air from the second heat exchanger, said drying cell being part of a set of two cells working in alternation, the other cell in the set receiving the compressed air from the first heat exchanger, such that the compressed air is fed to said expansion turbine after leaving said drying unit, and wherein the air exhausted from said expansion turbine is sent to a third heat exchanger after which it is distributed according to the needs of the mine, said third exchanger being traversed by the water collected in the mine, cooled in said exchanger and circulated upon leaving said exchanger to meet the cool water requirements of the mine.

• Assignee: Alsthom-Atlantique (France)
• Patent Number(s): US 4480444
• OSTI ID: 6149329
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
012000* -- Coal
Lignite
& Peat-- Mining
ABSORPTION REFRIGERATION CYCLE
ACTUATORS
AIR
BOILERS
COMPRESSED AIR
COMPRESSED GASES
COMPRESSORS
COOLING SYSTEMS
DEPTH
DIMENSIONS
ELECTRIC MOTORS
ENERGY SYSTEMS
FLUIDS
GASES
HEAT EXCHANGERS
HYDROGEN COMPOUNDS
MINE ROADWAYS
MINING
MOTORS
OXYGEN COMPOUNDS
REFRIGERATORS
STEAM GENERATORS
TUNNELS
UNDERGROUND FACILITIES
UNDERGROUND MINING
VAPOR GENERATORS
WATER