公开(公告)号：US20230220990A1

公开(公告)日：2023-07-13

申请号：US18000800

申请日：2021-06-04

申请人： TENOVA S.P.A.

发明人： Davide ASTESIANO ,  Claudio LEONCINI

IPC分类号： F23D14/02 ,  C21D1/52 ,  C21D1/76 ,  C21D11/00 ,  C21D8/02 ,  C21D8/04 ,  C21D9/00 ,  C21D9/48 ,  C21D9/56 ,  C21D9/573 ,  F23D14/22 ,  F27D99/00

CPC分类号： F23D14/02 ,  C21D1/52 ,  C21D1/76 ,  C21D8/0247 ,  C21D8/0447 ,  C21D9/005 ,  C21D9/0006 ,  C21D9/48 ,  C21D9/562 ,  C21D9/573 ,  C21D11/00 ,  F23D14/22 ,  F27D99/0033 ,  F23C2202/10

摘要： A direct flame furnace burner unit for furnaces for the thermo-chemical treatment of steel strips in continuous hot-dip galvanizing plants includes a burner with a combustion head provided with a combustion chamber having an outlet opening of the combustion flame, and a body to which the combustion head is fixed. The body includes a first chamber which is in communication with the combustion chamber, a first lance for the injection of a fuel into the combustion chamber, a mixing chamber provided with at least a first inlet and a second inlet opening which is connectable to a second supply source, at least a second lance for the injection of the mixture into the combustion chamber. The burner is operable in two distinct operating modes, a diffusive flame combustion mode and a premixed flame combustion mode.