Suspension furnace, also known as swirl furnace, uses heated hot gas and calcined and decomposed powder materials to complete the thermal decomposition of materials in a mixed flow. In the early days of my country, this technology was mainly used for the calcination and decomposition of aluminum hydroxide. It has been used in the fields of magnesite, iron oxide magnetization roasting, magnesium hydroxide decomposition, etc. The suspension furnace and cyclone furnace provided by our company have achieved dozens of production lines, which are one of the main furnace types in thermal decomposition furnaces.