US 12,465,899 B2
Slurry processing apparatus, microbubble generation equipment, and slurry processing method
Yoshihiko Nakao, Niihama (JP); and Shintaro Ishikawa, Niihama (JP)
Assigned to SUMITOMO METAL MINING CO., LTD., Tokyo (JP)
Appl. No. 17/796,056
Filed by SUMITOMO METAL MINING CO., LTD., Tokyo (JP)
PCT Filed Feb. 17, 2021, PCT No. PCT/JP2021/005946
§ 371(c)(1), (2) Date Jul. 28, 2022,
PCT Pub. No. WO2021/166958, PCT Pub. Date Aug. 26, 2021.
Claims priority of application No. 2020-027774 (JP), filed on Feb. 21, 2020.
Prior Publication US 2023/0063110 A1, Mar. 2, 2023
Int. Cl. B01J 8/08 (2006.01); B01F 23/00 (2022.01); B01F 23/2326 (2022.01); B01F 23/80 (2022.01); B01F 25/31 (2022.01); B01F 101/00 (2022.01); B01F 101/45 (2022.01); B01J 8/00 (2006.01); B03B 5/34 (2006.01); B03D 1/14 (2006.01); C22B 3/00 (2006.01); C22B 3/22 (2006.01)
CPC B01J 8/085 (2013.01) [B01F 23/041 (2022.01); B01F 23/2326 (2022.01); B01F 23/80 (2022.01); B01F 25/311 (2022.01); B01J 8/0055 (2013.01); C22B 3/22 (2013.01); C22B 23/0453 (2013.01); B01F 2101/2204 (2022.01); B01F 2101/45 (2022.01); B03B 5/34 (2013.01); B03D 1/14 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A slurry treatment apparatus comprising:
a treatment tank for performing any treatment of a solid-liquid reaction, a solid-gas reaction, a gas-liquid reaction, and solid-liquid separation on a slurry containing a metal or a metal compound;
a first pipe;
a second pipe; and
a pump, wherein
one end of the first pipe has a suction opening for sucking the slurry from the treatment tank, and another end of the first pipe is connected to a suction port of the pump,
one end of the second pipe is linked to a discharge port of the pump, and another end of the second pipe is connected to a microbubble generator,
the microbubble generator includes a throttle that throttles a flow of the slurry and a gas supply tube for supplying gas to the throttle, and supplies microbubbles to the slurry in the treatment tank, and
a slurry separator that separates the slurry into a slurry containing, as a solid content, only particles smaller than a narrow flow path portion of the throttle and a remaining slurry other than the slurry, wherein
the slurry separator includes an intermediate chamber disposed outside the suction opening of the first pipe so as to surround the suction opening,
openings are formed on a wall surface and/or a bottom surface of the intermediate chamber, and
a liquid content of the slurry in the intermediate chamber and a solid content of the slurry having a predetermined size or less are discharged to an outside of the intermediate chamber through the openings.