E - Fixed Constructions – 21 – C
Patent
E - Fixed Constructions
21
C
262/10, 103/26
E21C 45/00 (2006.01) E21D 1/10 (2006.01) E21F 3/00 (2006.01) F02B 75/02 (2006.01)
Patent
CA 2002393
A mine cooling power recovery system is disclosed. 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 second embodiment of the present invention employs a slurry sedimentation tank provided on the ground surface.
Furutani Naoshi
Kamino Yukishige
Monroe Ian
Saito Makoto
Uchida Kenji
Hitachi Ltd.
Kirby Eades Gale Baker
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