Sub-lance assembly for sampling and temperature-measuring of mol

Details Sub-lance assembly for sampling and temperature-measuring of mol Sub-lance assembly for sampling and temperature-measuring of mol

1978-02-28

1979-02-27

Gorenstein, Charles

Measuring and testing

Measuring vessel

73421B, 734254R, 73432A, 73DIG9, G01N 112

Patent

active

041412494

ABSTRACT:
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 detecting the angle of rotation of said sub-lance.

REFERENCES:
patent: 3494200 (1970-02-01), Mihalon et al.
patent: 3572124 (1971-03-01), Nagaoka et al.
patent: 3717034 (1973-02-01), Dukelow et al.
patent: 3824837 (1974-07-01), Nagaoka et al.

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