MULTI-TUBULAR BURNER AND METHOD OF PRODUCING GLASS BLANK

摘要

FIELD: manufacturing fiber glass articles. ^ SUBSTANCE: multi-tubular burner comprises outer cylindrical nozzle and at least one inner cylindrical nozzle which are arranged coaxially to define the ring jet openings for supplying gases. The angle between the axial line of the outer periphery of the nozzle and outer end section of each of the inner nozzles is 90°±3°. The distance between the central axis of the outer periphery of the nozzle and each of the central axes of the inner peripheries and outer peripheries of the inner nozzle does not exceed 0.2 mm. ^ EFFECT: improved quality of the blanks. ^ 17 cl, 6 dwg