METHOD AND APPLIANCE FOR CONTINUING FUEL OXYGEN-GAS COMBUSTION WITH FUEL AIR-GAS COMBUSTION.

摘要

A method for maintaining the heating of an oven at an elevated temperature using combustion of oxygen-combustible gas, in which a flame of oxygen-combustible gas is introduced into the oven when the oxygen supply for the flame is interrupted or reduced, which It comprises: - replacing the fuel-oxygen gas flame with a stream of air selected from, oxygen-enriched air and air, containing 22% to 80% by volume of oxygen, introduced into the oven at a rate to maintain approximately the same or faster burner ignition speed than during combustion of oxygen-combustible gas; - and introducing an independent fuel gas stream into the oven, below said air stream, to provide combustion of combustible gas-air while maintaining said temperature in the oven.