Plug for probe nose, method for probing inside a blast furnace w

Details Plug for probe nose, method for probing inside a blast furnace w Plug for probe nose, method for probing inside a blast furnace w

1987-06-30

1989-05-16

Noland, Tom

Measuring and testing

Probe or probe mounting

G01M 1900

Patent

active

048298360

ABSTRACT:
A plug for a probe nose is produced in one piece having two contiguous parts. The first part is a substantially cylindrical body designed to be inserted in the probe nose such that it ensures tightness between the probe and the plug body. The second part is a substantially conical or semi-spherical head, co-axial to the body and provided at the level of its junction with the latter with a shoulder by which it can abut on the end of the probe. The plug comprises an inner through conduit which connects the surface of the head with the free front face of the body. This conduit authorizes the discharge of a protective gas introduced into the probe, and it is possible by controlling the flow of this gas to assess the difference of pressure exerted on each side of the plug and to adjust accordingly the pressure of the protective gas in order to prevent both the ejection of the plug and the penetration into the probe of hot gases from the furnace. The invention finds an application in the probing of furnaces used for reducing materials containing pressurized gases, such as blast furnaces.

REFERENCES:
patent: 4361315 (1982-11-01), Kajihara et al.
patent: 4495810 (1985-01-01), Tessarzik et al.
patent: 4569228 (1986-02-01), Bellgardt et al.
Soviet Inventions Illustrated, Semaine C16, May 28, 1980, Derwent Publications Ltd.; & SU-A-681 097 (Ferr Metallurgy Autown) 25-08-1979.
Soviet Inventions Illustrated, semaine K15, May 25, 1983, Derwent Publications Ltd.; & SU-A-933 716 (Ferr Metallurgy Autown) 09-06-1982.

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