Burner for producing inorganic spheroidized particles, apparatus for producing inorganic sphering particles, method for producing inorganic sphering particles, and inorganic sphering particles

摘要

PROBLEM TO BE SOLVED: To provide an inorganic spheroidized particle manufacturing burner also capable of melting inorganic powder having a melting point equal to or more than heat insulation thermal flame temperature of oxygen combustion.SOLUTION: This invention relates to an inorganic spheroidized particle manufacturing burner 1 which is an oxygen combustion burner having a structure of concentric five pipes using combustion assisting gas containing fuel gas and oxygen that comprises: a first powder supply passage 2A arranged in an axial direction of the burner to supply the first powder; a first fuel supply passage 3A arranged at an outer circumference of the first powder supply passage 2A to supply fuel gas; a second powder supply passage 4A arranged at an outer circumference of the first fuel supply passage 3A to supply the second powder; a second fuel supply passage 5A arranged at an outer circumference of the second fuel supply passage 4A to supply fuel gas; and a combustion supporting gas supply passage 6A arranged at an outer circumference of the second fuel supply passage 5A to supply combustion supporting gas.SELECTED DRAWING: Figure 1