Gas flow control method and apparatus for metallurgical vessels

Details Gas flow control method and apparatus for metallurgical vessels Gas flow control method and apparatus for metallurgical vessels

C - Chemistry, Metallurgy

21

B

39/13

C21B 7/16 (2006.01) C21C 5/30 (2006.01) G05D 7/00 (2006.01) G05D 11/02 (2006.01)

Patent

CA 1172848

GAS FLOW CONTROL METHOD AND APPARATUS FOR METALLURGICAL VESSELS ABSTRACT OF THE DISCLOSURE A method and apparatus for controlling the flow of process gases to the tuyeres of a metallurgical vessel provides for simultaneous injection of various gases through multiple tuyere passages. Gas flow controls are provided for controlling the proportions of gases simultaneously injected into the vessel and for controlling gas sequencing and switching operations. Pressure sensors are provided for monitoring the pressures of the gases delivered through the tuyeres for automatically initiating a switch-over to alternate pressurized gas sources in the event that the currently operating pressurized gas supply fails.

203268

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