| 摘要 |
PROBLEM TO BE SOLVED: To provide an apparatus capable of producing small-lots of various types of glass beads with good energy efficiency and in a short time by a direct process. SOLUTION: This apparatus comprises a glass melting furnace, fluid injection nozzles for injecting a fluid to a glass melt falling under self weight from an outflow port of the glass melting furnace, and a chamber provided surrounding the outflow port and the fluid injection nozzles. The glass melting furnace has an oxygen burner attached downward to the ceiling wall, and raw materials for glass and auxiliary materials are supplied to the glass melting furnace by gas conveyance. The oxygen burner is ignited downward, and raw materials for glass and auxiliary materials are supplied downward into the flame for melting. The resulting glass melt is temporarily stored in the bottom section of the furnace, and it is allowed to fall under self weight from the outflow port as it is. The glass melt falling under self weight is dispersed by injecting a high-speed fluid from the fluid injection nozzles. The dispersed glass particles are made spherical by the surface tension thereof and cooled, and the resulting glass beads are collected in the chamber. COPYRIGHT: (C)2009,JPO&INPIT
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