Calcining furnace for producing granular calcium aluminate from aluminum ash

The utility model discloses a calcining furnace for producing granular calcium aluminate from aluminum ash, which relates to the technical field of calcining furnaces and comprises a rotary calcining furnace for producing granular calcium aluminate by calcining aluminum ash, four riding wheels for supporting the rotary calcining furnace, a burner, a discharge port, a feed bin and a transmission gear. The discharging port is formed below the bottom of the rotary calcining furnace, a feeding screw and a smoke collecting device are arranged on the rotary calcining furnace, the smoke collecting device comprises a high-temperature polymerization settling chamber, and the feeding bin is connected with a feeding bin airflow homogenizing device. The feeding bin adopts airflow homogenization, so that the qualified rate of finished products is ensured; the composite furnace lining is arranged in the rotary calcining furnace, so that the wear resistance and strength of the furnace wall are enhanced, and the energy consu