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

1980-03-04

1982-03-23

Swisher, S. Clement

Measuring and testing

Sampler, sample handling, etc.

With heating or cooling

7386431, G01N 112

Patent

active

043206689

ABSTRACT:
A sub-lance assembly for sampling and temperature-measuring of a molten metal during refining thereof in a top-blowing oxygen converter, which comprises: a sub-lance having a concentric three-pipe structure comprising a gas supply pipe, a water supply pipe and a water discharge pipe with said gas supply pipe as the center, said sub-lance being rotatably and releasably fitted to a sub-lance carriage in the substantially vertical position; a probe fitted to the lowermost end of said gas supply pipe, for sampling and temperature-measuring of a molten metal during refining thereof; an inner cylinder fixed to the upper end portion of said sub-lance; an outer cylinder, having a water supply branch pipe and a water discharge branch pipe, rotatably engaging with said inner cylinder, said outer cylinder being connected to said sub-lance carriage; said water supply pipe, said inner cylinder, said outer cylinder and said water supply branch pipe communicating with each other in a water-tight manner, said water discharge pipe, said inner cylinder, said outer cylinder and said water discharge branch pipe communicating with each other in a water-tight manner; a drive mechanism, fitted onto the outer surface of said outer cylinder, for rotating said sub-lance around the axial line thereof; and, a sub-lance rotation angle detector, fitted to the tip of the axle of rotation of said drive mechanism, for detecting the angle of rotation of said sub-lance.

REFERENCES:
patent: 2626166 (1953-01-01), Fawick
patent: 3166344 (1965-01-01), Davis
patent: 3559623 (1971-02-01), Decamps
patent: 3581948 (1971-06-01), Detalle
patent: 3598380 (1971-08-01), Jilek et al.
patent: 4141249 (1979-02-01), Ishikawa

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