Radiant tube is the key to the continuous annealing furnace heating galvanizing unit period of equipment, used for radiation heating strip, eliminate the internal stress of strip steel, plastic, improve the purpose of annealing, but the radiant tube if there is a leak will have big consequences for unit operation, and even affect the normal operation of the production.Prevent the radiant tube was burned, prolong the service life of radiant tube, need to take certain measures.1, adjust the combustion gas and combustion-supporting air combustion rate, because in nitrogen atmosphere, excess oxygen can produce strong oxidation nitride, the radiant tube corrosion damage, so the combustion control under 2% % of O2 content in the exhaust.2, the gas pressure control valve and air pressure control valve action should be sensitive, don't lag, guarantee the stability of burning gas pressure and air pressure, guarantee the gas combustion.
g burner and stop the burner work for purging cooling operation.