Split burner adopts staged combustion, partial premixing and flue gas recirculation technology. It can meet more stringent international NOx emission requirements (for example, it was implemented in urban areas of China in 2017, and the emission limit is 30mg / m under the oxygen content of 3% reference dry o ν) ³ Within) nxf4000 combustion management system is adopted to realize full electronic proportional regulation, improve combustion efficiency, integrate variable module design such as flame monitoring, and two or three burners can operate at the same time.