C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
39/104
C22B 9/05 (2006.01) C22B 21/06 (2006.01)
Patent
CA 1315545
ABSTRACT OF THE DISCLOSURE An apparatus for treating a molten metal comprises a vertical post, a treating container disposed at one side of the post and having an opening at its upper end for containing the molten metal, a horizontal suspending arm mounted at its base end on the post upward- ly and downwardly movably and rotatable in a horizontal plane, a vertical rotary shaft suspended from the arm and having a treating gas channel internally extending therethrough longitudinally, a bubble releasing-dispers- ing rotor provided at the lower end of the rotary shaft and having in its bottom surface a treating gas outlet in communication with the gas channel, the rotor being movable into and out of the container through the open- ing, and at least one baffle suspended from the arm and movable into and out of the container through the opening for preventing eddying and waving. When there arises a need to repair or relace the rotary shaft, the rotor and/or the baffle, or when the dross is to be removed from the surface of molten metal after the treatment, the rotor, the shaft and the baffle are brought out of the container by raising the suspending arm and are thereafter brought to a position away from immediately above the container by horizontally moving the arm. The above work is then performed.
531085
Otsuka Ryotatsu
Tanimoto Shigemi
Toyoda Kazuo
Fetherstonhaugh & Co.
Showa Denko K.k.
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