Method for probing inside a blast furnace with a pressurized probe
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United States of America Patent
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-
Jan 2, 1990
Issued Date -
N/A
app pub date -
Apr 7, 1989
filing date -
Jun 30, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for implanting a tubular probe having a nose in a smelting furnace, the nose of the probe being temporarily closed off by a plug inserted therein, the plug including a substantially cylindrical body force fitted in the probe nose and an internal conduit extending through the plug. The method comprises implanting the probe into the smelting furnace; injecting a gas into the probe; controlling the flow rate of the injected gas until the probe nose has reached a required position; and regulating gas supplying pressure to keep the flow rate between a minimum value, under which furnace gas may penetrate into the probe, and a maximum value, above which the plug may be prematurely ejected. The plug may further include a head axially connected to the cylindrical body designed to cover the probe nose externally, and during the implanting step, the plug is placed on the probe so that an orifice of the internal conduit on an external face of the head is directed downwardly.
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