Arc furnace burner control method and apparatus

Patent · Tue Feb 24 04:00:00 EST 1987

OSTI ID:6727230

Hixenbaugh, D L; Gossar, R C

This patent describes an electric arc furnace having at least one electrode and a burner, first supply means for supplying an oxygen containing gas to the burner, second supply means for supplying a fuel gas to the burner, an exhaust gas conduit connected to the furnace, first damper means for controlling the flow of dilution air into the exhaust conduit, second damper means connected in the conduit for controlling the flow rate of exhaust gases therethrough, first means coupled to the first damper means for sensing the position thereof, second means coupled to the second damper means for sensing the position thereof, temperature sensing means coupled to the exhaust conduit for sensing the temperature therein, pressure sensing means coupled to the furnace for sensing the pressure therein, a first control means coupled to the first supply means and to the temperature sensing means and the first means for initiating and controlling the flow of oxygen containing gas in relation to the temperature in the conduit and the position of the first damper means, a second control means coupled to the second supply means and to the second means and the pressure sensing means for initiating and controlling the flow of fuel gas in relation to the flow rate of oxygen containing gas, the position of the second damper means and the pressure within the furnace.

• Assignee: Pennsylvania Engineering Corp., Pittsburgh, PA
• Patent Number(s): US 4646315
• OSTI ID: 6727230
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
421000* -- Engineering-- Combustion Systems
AIR FLOW
ARC FURNACES
BURNERS
COMBUSTION CONTROL
CONTROL
CONTROL EQUIPMENT
DILUTION
DRAFT CONTROL SYSTEMS
ELECTRIC FURNACES
ELECTRODES
ELEMENTS
EQUIPMENT
EXHAUST GASES
EXHAUST SYSTEMS
FLOW RATE
FLOW REGULATORS
FLUID FLOW
FLUIDS
FUEL GAS
FUELS
FURNACES
GAS BURNERS
GAS FLOW
GAS FUELS
GASEOUS WASTES
GASES
NONMETALS
OXYGEN
POSITIONING
TEMPERATURE DEPENDENCE
TEMPERATURE MEASUREMENT
WASTES