Burner for production of inorganic spheroidized particle

A burner for production of inorganic spheroidized particles, comprising:

• a raw material powder supply path that supplies raw material powder by using oxygen or an oxygen-enriched air as a carrier gas;
• a powder diffusion plate having a plurality of fine holes, which is provided at a downstream end of the raw material powder supply path;
• a raw material diffusion chamber that is formed in a diffusion pipe provided at a downstream end of the powder diffusion plate;
• a fuel supply path disposed around the outer circumference of the raw material powder supply path;
• an oxygen supply path disposed around the outer circumference of the fuel supply path;
• and
• a combustion chamber disposed at a downstream side of the raw material diffusion chamber, which has an inside diameter increasing along the downstream direction and communicates with the fuel supply path and the oxygen supply path, wherein the oxygen supply path has a plurality of first oxygen ejection holes that eject oxygen from the side wall of the combustion chamber in such a direction that forms rotational flow in the combustion chamber, and a plurality of second oxygen ejection holes that are disposed at a downstream side of the first oxygen ejection holes and ejects oxygen from the side wall of the combustion chamber in a direction parallel to a central axis of the burner.