Hydraulic and earth engineering – Temperature modification or control of earthen formation
Patent
1989-11-07
1991-02-12
Reese, Randolph A.
Hydraulic and earth engineering
Temperature modification or control of earthen formation
62260, 165 45, 16510431, E02D 1914
Patent
active
049919989
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.
REFERENCES:
patent: 3220470 (1965-11-01), Balch
patent: 3950958 (1976-04-01), Loofbourow
patent: 4750333 (1988-06-01), Husain et al.
Furutani Naoshi
Kamino Yukishige
Monroe Ian
Saito Makoto
Uchida Kenji
Hitachi , Ltd.
Reese Randolph A.
Ricci John A.
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