Equipment and method for producing powdery vanadium oxide

The invention discloses equipment for producing powdery vanadium oxide, belongs to the field of metallurgy, and aims to provide special equipment for producing the powdery vanadium oxide from APV. By the aid of the equipment, the APV can be fully oxidized and the grade of the vanadium oxide can be increased. The equipment comprises a rotary kiln device, a dust removal system and an air pipeline, wherein the rotary kiln device comprises a rotary kiln drum, a combustion device and a transmission device, the transmission device is connected with the rotary kiln drum and provides the rotating speed for the rotary kiln drum, the rotary kiln drum is arranged in the combustion device, one end is a feeding end, the other end is a discharging end, and the feeding end is higher than the discharging end; the dust removal system is arranged at the feeding end of the rotary kiln drum and communicated with an inner cavity of the rotary kiln drum; the air pipeline is communicated with the inner cavity of the rotary kiln drum and delivers hot air to the inner cavity of the rotary kiln drum, and one end of the air pipeline enters the inner cavity of the rotary kiln drum from the discharging end. According to the equipment, the APV reacts in a constant-temperature and negative-pressure oxidation atmosphere, the reaction is more thorough, and the grade of the vanadium oxide product is increased.