IN-FLIGHT MELTING BURNER, MELTING METHOD OF GLASS RAW MATERIAL, METHOD OF PRODUCING MOLTEN GLASS, METHOD OF PRODUCING GLASS BEAD, METHOD OF MANUFACTURING GLASS PRODUCT, IN-FLIGHT MELTING DEVICE AND DEVICE FOR MANUFACTURING GLASS PRODUCT

摘要

PROBLEM TO BE SOLVED: To provide an in-flight melting burner capable of suppressing adhesion of glass raw material particles.;SOLUTION: The in-flight melting burner 10 for use in an in-flight melting method for melting glass raw material particles in a gas-phase atmosphere has a multi-tube structure in which at least part of a plurality of nozzles is concentrically arranged, the plurality of nozzles forming a glass raw material particle supply passage 2, combustion gas supply passages 3, 4 and a fuel gas supply passage 1 are formed between adjacent nozzles or inside each nozzle. The tips of the nozzles 11, 12 forming the glass raw material particle supply passage 2 are protruded ahead of the tips of the other nozzles.;COPYRIGHT: (C)2012,JPO&INPIT