MOLTEN METAL FILTRATION DEVICE

WIPO Patent Application WO/2024/024288

A1

Provided is a molten metal filtration device in which agitation performance of molten metal, degassing performance against gas inclusions, and prevention of clogging of a filtration tube are made more uniform/improved. Disclosed is a molten metal filtration device that includes: (i) a filtration chamber provided with a molten metal inlet port and outlet port and including a hearth and an inner wall surface; (ii) a filtration unit that is disposed above the hearth inside the filtration chamber and is constituted from a plurality of ceramic filtration tubes for filtering impurities from the molten metal; and (iii) a rotor that agitates the molten metal by rotating in a substantially horizontal direction, the rotor being installed adjacent to the filtration unit, or, when a plurality of filtration units are present, a rotor being installed adjacent to each of the plurality of filtration units, the hearth constituting the lowest point as viewed in the horizontal direction substantially directly below the rotor, excluding the location where a drain channel is installed, which results in substantially an entire portion of contact between the hearth and the inner wall surface being in a position higher than the lowest point substantially directly below the rotor.

NAKAMOTO KENSUKE (JP)
TSUTSUMI EIKI (JP)
KAWANO TOSHIAKI (JP)
TAKAOKA MINORU (JP)
FUJIKI KENJI (JP)

PCT/JP2023/021131

February 01, 2024

June 07, 2023

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MITSUI MINING & SMELTING CO LTD (JP)

C22B9/02; B01D29/11; B01D29/50; B01D39/20; C22B21/06; F27B3/14; F27D1/00

JPH11320083A	1999-11-24
JPS54142104A	1979-11-06
JPH074868A	1995-01-10
JPH073348A	1995-01-06
JPH073347A	1995-01-06

ASAMURA IP P.C. (JP)

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