Annular Cooler is a cooling device in metallurgical pelletizing projects, used to cool pellet ore discharged from Rotary Kiln at around 1150°C. The high-temperature exhaust gas discharged from the first stage directly enters Rotary Kiln, and the remaining hot gas is returned to Traveling Grate. The Annular Cooler designed and manufactured by our company uses a variety of sealing combinations to improve heat utilization and reduce energy loss. Currently, it can be designed and produced for an annual output of 100,000 to 5,000,000 tons of Annular Cooler equipment.