Apparatus for slag removal during metal processing
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United States of America Patent
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Nov 20, 2018
Grant Date -
Nov 17, 2016
app pub date -
May 6, 2016
filing date -
May 14, 2015
priority date (Note) -
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Abstract
A skimmer (100) for removing a slag layer (24) from hot metal (6) in a ladle (2) during a process of metal purification such as steelmaking. The improved skimmer (100) is a steel framework covered in reinforced refractory, having a system of internal piping (60) that at one end is attached to a source of gas and at a second end terminating at one or more ports (64). The improved skimmer (100) is attached to a boom for a prior art skimming machine. In use, the improved skimmer (100) is moved along a top surface (6a) of the hot metal, though the slag layer, and predetermined flows of gas are forced into the piping system and expelled through the port or ports to move the slag layer out from the back of ladle so it can be skimmed into a slag pot (4).
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