Vaporization furnace for preparing nanoscale spherical silicon dioxide powder

The invention relates to a gasification furnace for preparing nanoscale spherical silicon dioxide powder, which comprises a furnace body, a furnace cover, a furnace cover, a gas inlet pipe, a gas outlet pipe and a gas outlet pipe, the combustor is arranged at the bottom of the inner cavity and used for generating high-temperature flames, an exhaust port is formed in the top of the inner cavity, and the exhaust port is connected with a condenser through a conveying pipeline. The combustor for heating the material body is arranged at the bottom of the furnace body, and the material is fed at the bottom to be heated and vaporized, so that vaporized silicon dioxide rises and is discharged into the condenser from the upper part of the furnace body to be rapidly cooled, and nano-scale silicon dioxide particles are more easily formed. Compared with an existing high-temperature melting furnace, silicon dioxide solid particles discharged by the vaporization furnace are few, in the rising process of silicon dioxide, th