Low-sodium Alpha-alumina calcining process equipment

The invention relates to low-sodium Alpha-alumina calcining process equipment, belonging to the technical field of an Alpha-alumina industrial production and calcining technology. The invention aims to provide the low-sodium Alpha-alumina calcining process equipment, so as to reduce the sodium content in Alpha-alumina and realize continuous and large-scale production and industrial upgrading. The technical solution is adopted as follows: a material supply cabin, a Venturi drier, there cyclone separators, a calcinator, a rotary kiln and a waste heat boiler are communicated in series according to a certain sequence to form the calcining process equipment directly producing the Alpha-alumina from raw materials; heat of a part of hot air generated in the production process can be recycled through the waste heat boiler, and sodium in the hot air is recovered by the waste heat boiler, so that sodium-containing gas flow cannot enter a production line again, and the sodium content of the product is low. The low-sodium Alpha-alumina calcining process equipment is capable of realizing continuous and large-scale production and industrial upgrading, and the product is stable in quality.