... of flue gas.Continuous annealing furnace---Radiant tubes heating (RTF), verticalFuel type----natural gas, liquefied petroleum gas, mixed gas, coke oven gas and ... dust of the strip surface. In the furnace, adopts protective gas recycle jet cooler and frequency conversion adjustment, which ... layer oiling. • Adopts CPC, EPC devices in the furnace, which ensures the correct running of the strip. Adopts ...