Professional manufacturer of bell-type annealing furnace
The air preheater installed on the heating cap preheats the combustion air by burning waste heat of the flue gas, and the preheating temperature can reach 450℃. The flue gas from the heating cap enters the air preheater from the top and flows down through the air preheater into the flue.
The waste heat of all the flue gases generated by the annealing cycle is recovered, which is beneficial to improve combustion efficiency and reduce energy consumption.
This large heat exchanger is designed with cross-flow and has a good preheating effect and a low flue gas discharge temperature, and has a long service life.
① Smoke entering
② Combustion air entering
③ Smoke emission
④ Hot air emission