Apparatus for producing inorganic spheroidized particles and method for producing inorganic spheroidized particles

Apparatus for producing inorganic spheroidized particles, comprising:

• a burner for producing inorganic spheroidized particles which uses a fuel gas containing ammonia and a combustion-supporting gas containing oxygen;
• a vertical spheroidizing furnace in which the burner for producing inorganic spheroidized particles is mounted vertically downward on a top thereof;
• an ammonia supply source;
• an oxygen supply source;
• an ammonia supply line located between the ammonia supply source and the burner for producing inorganic spheroidized particles;
• and
• an oxygen supply line located between the oxygen supply source and the burner for producing inorganic spheroidized particles;
• wherein the apparatus further comprises a fuel supply line for auxiliary combustion located between a fuel supply source for auxiliary combustion and the burner for producing inorganic spheroidized particles, the fuel supply source for auxiliary combustion being separate from the ammonia supply source and including a fuel for auxiliary combustion configured to reduce carbon dioxide generated during combustion, the fuel for auxiliary combustion being different than the fuel gas, and
• wherein the burner for producing inorganic spheroidized particles comprises:
• a raw material powder supply path inside the burner which supplies inorganic powder as raw material powder;
• a first fuel gas supply path inside the burner which supplies a first fuel gas and has a first combustion-supporting gas supply path inside the burner which supplies a first combustion-supporting gas;
• and
• a first premixing chamber configured to mix the first fuel gas and the first combustion-supporting gas at a space located between a tip of the first fuel gas supply path and a tip of the first combustion-supporting gas supply path,
• wherein the ammonia supply line and the first fuel gas supply path are communicated with each other;
• and
• wherein the oxygen supply line and the first combustion-supporting gas supply path are communicated with each other,
• wherein the burner for producing inorganic spheroidized particles further comprises:
• a second fuel gas supply path which supplies a second fuel gas, and
• a second combustion-supporting gas supply path which supplies a second combustion-supporting gas, and
• wherein the burner for producing inorganic spheroidized particles further comprises a second premixing chamber configured to mix the second fuel gas and the second combustion-supporting gas at a space located between a tip of the second fuel gas supply path and a tip of the second combustion-supporting gas supply path.