The structure of the annealing furnace

The structure of the annealing furnace

        The skeleton of the annealing furnace is welded by various section steels. The outer frame is made of channel steel as the main beam, the coaming plate is made of cold thin plate, the trolley uses channel steel as the main beam, and the bottom plate, front and rear plates are medium plates. To

　　 Transmission part: The trolley drive adopts electric motor and reducer to drive a set of driving wheels at the front end through a chain. The furnace door drive adopts a combination of worm gear reducer and electric motor for electric lifting. 

　　 Seal: The trolley and furnace body are sealed with a labyrinth structure, and there is an automatic sand-sealing knife sealing device on the side of the trolley. The furnace door is sealed with a roller-type compression and spring compression automatic mechanism. The furnace body part adopts a high-quality refractory brick structure to ensure the tightness of the furnace. The pressure-resistant part of the trolley is built with high-alumina bricks, and the lower part is equipped with insulation bricks for heat preservation. 

　　 Combustion system: Install several burners on both sides of the oil furnace, and the heat flow reciprocates in the furnace to ensure the uniformity of furnace temperature. Automatic type and semi-automatic type can be selected according to needs. 

Exhaust preheating device: A fume preheating device is installed at the upper end of the furnace. When the flue gas in the annealing furnace passes through the preheater, it will be preheated by the fan and sent to the burner for combustion. A manual butterfly valve is installed at the outlet, which can adjust the pressure in the furnace. It is widely used in the process of heating, cooling, condensation, evaporation and other industrial sectors such as chemical industry, petroleum, food, metallurgy, machinery, light industry, electric power, shipbuilding, papermaking, mining, medicine, and central heating.