Boiler Heat Recovery System Waste Heat Boiler For Chemical Production

waste heat boiler

The waste heat boiler is made of a steam drum and a large membrane wall cavity. The high-temperature flue gas enters the boiler membrane wall cavity from the top. The flue gas is cooled from about 1100 degrees at the inlet to about 550 degrees at the outlet. A vertical membrane wall cavity is used. The high-temperature flue gas flow rate is reduced, allowing more dust to settle at the bottom of the large cavity of the membrane wall, which is beneficial to the natural settlement of mineral dust and prevents furnace tube wear. The boiler feed water enters the steam drum and is distributed to the lower header of the large cavity of the membrane wall through the downcomer. It is heated by the flue gas to form a steam-water mixture and enters the upper header. After entering the steam drum through the riser pipe, the steam and water are separated and then discharged.