Method and apparatus for slag separation sensing

Details Method and apparatus for slag separation sensing Method and apparatus for slag separation sensing

1998-06-15

2000-06-13

Kastler, Scott

Metallurgical apparatus

Process

Plugging or tapping

266 90, 266 99, 266230, C21B 712, C21B 724

Patent

active

060745983

ABSTRACT:
A method and apparatus for improving the yield of molten metal discharged from a metal production vessel limits the slag carryover by reducing turbulence of metal pouring through a discharge opening by inhibiting a vortex over the discharge opening, automatically sensing the presence of slag in the discharge opening, and terminating discharge through the opening in response to the detection of changing content through the discharged opening passage. Preferably, the inhibiting function includes inserting a slag reduction device, preferably a refractory body and maintaining the position of the device over the discharge nozzle. Preferably, the sensor is an electromagnetic coil that determines the change in content of the flow through the opening passage without direct contact with the contents of the opening. The combination of the slag vortex inhibitor and the flow content sensor is substantially improved metal pouring yield as demonstrated by actual slag reduction results.

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