METHOD FOR MANUFACTURING MOLTEN GLASS, GLASS-MELTING FURNACE, GLASS ARTICLE MANUFACTURING DEVICE, AND GLASS ARTICLE MANUFACTURING METHOD

摘要

The present invention provides a process for producing molten glass that is a process of producing molten glass from glass raw material particles and glass cullet pieces by an in-flight melting method; a glass melting furnace for carrying out the above process; an apparatus for producing glass products having the above melting furnace; and a process for producing glass products employing the above production process. A glass melting furnace 10 having a glass raw material particle input portion disposed downwardly from a ceiling wall 18 of a melting vessel 12; an oxygen combustion burner 26 for forming a flame for heating falling glass raw material particles 32 to change to be liquid glass particles; a glass cullet piece input tube 36 for inputting glass cullet pieces 42 having a short diameter (A) of 0.5 mm