C - Chemistry – Metallurgy – 21 – C
Patent
C - Chemistry, Metallurgy
21
C
39/105
C21C 5/48 (2006.01) C21C 5/46 (2006.01) G01K 13/12 (2006.01) G01N 1/12 (2006.01)
Patent
CA 1092813
SUB-LANCE ASSEMBLY FOR SAMPLING AND TEMPERATURE- MEASURING OF MOLTEN METAL DURING REFINING ABSTRACT OF THE DISCLOSURE A sub-lance assembly for sampling and temperature- measuring of molten metal during refining in a top-blowing oxygen converter, which comprises: a sub-lance having a concentric three-pipe structure comprising from inside to outside an air supply pipe, a water discharge pipe and a water supply pipe; a water supply outer cylinder having a water supply branch pipe, rotatably engaging with the upper end portion of said water supply pipe; a water discharge outer cylinder having a water discharge branch pipe, rotatably engaging with the upper end portion of said water discharge pipe; said water supply branch pipe and said water discharge branch pipe being integrally connected together by a fixing plate; a drive mechanism fitted onto the outer surface of said water supply outer cylinder or said water discharge outer cylinder, for rotating said sub-lance around the axial line thereof; and a sub-lance rotation angle detector at the tip of the axis of rotation of said drive mechanism, for detect- ing the angle of rotation of said sub-lance. - 1 -
298258
Hasegawa Teruyuki
Ishikawa Kenkichi
Kumagai Shinobu
Sakamoto Akiyoshi
Macrae & Co.
Nippon Kokan Kabushiki Kaisha
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