BLAST FURNACE PLUG
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United States of America Patent
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-
N/A
Issued Date -
Nov 24, 2011
app pub date -
May 20, 2010
filing date -
May 20, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An apparatus for centering a tap drill is provided herein. The device includes a body made of a refractory material that has a tapered shape and a connector secured to body configured to permit connection of the body to a tap drill bit. In addition, a method of operating a blast furnace is provided herein. The method includes providing a blast furnace plug having a refractory body having a tapered configuration. Securing the blast furnace plug to a tap drill bit. Aligning the blast furnace plug with a tap hole plugged with mud, and inserting the blast furnace plug into the mud to create an indentation in the mud having a tapered configuration. Removing the blast furnace plug from the tap drill bit, aligning the tap drill bit with the indentation and tapping the blast furnace.
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