Apparatus for slag removal during metal processing
OwnerLarry J Eppsinventor
Life of this patent
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Abstract
An improved 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).
Claims8
An improved skimmer (100) for use with a boom of a skimming machine for removing a quantity of slag (24) from a quantity of hot metal (6) contained in a ladle (2), the improved skimmer comprising:
- a steel framework having a front face (50);
- a piping system (60) housed inside the framework comprised of at least one pipe (62) having a gas intake end (66) and a gas output end;
- at least one port (64) disposed as a gas-permeable structure formed in the front wall (50);
- and
- means for attaching the improved skimmer (100) to the boom of the skimming machine;
- wherein the gas output end of the pipe (62) terminates at the port (64);
- and
- wherein the steel framework is coated in reinforced refractory.
Dependencies are inferred from the claim text.