BURNER FOR GLASSWORK

PROBLEM TO BE SOLVED: To provide burner for glasswork which can generate stable flame for fusing glass material and is also excellent in work efficiency. SOLUTION: A burner 1 for glass work is equipped with a pedestal 2, a burner body 3 which is mounted on the pedestal 2 and is provided with an air nozzle 11 and a gas nozzle 12 opened upward, a primary mixing tube 4 which is arranged on the top of the burner body 3 and has a conical recess 20 below which the air nozzle 11 and the gas nozzle 12 are opened and has, at the center, a first injector 23 made of a small hole 21 and an upward- widening tapered hole 22 leading to the conical recess 20, a secondary mixing tube 5 which is arranged on the top of the primary mixing tube 4 and has, at the center, a second injector 29 made of a through-hole 27 with a large diameter and an upward-widening tapered hole 28 with a large diameter leading to the tapered hole 22 of the primary mixing tube 4 and further has a plurality of secondary air introduction ports 30 provided at the sidewall of the lower part, and a nozzle 6 which is arranged at the top of the secondary mixing tube 5 and opened and leads to the tapered hole 8 with a large diameter.