Abstract:Sinter is the main iron-bearing furnace burden material for blast furnace ironmaking, but its processing is energy-intensive,so the process is a key process for carbon emission reduction in the iron and steel industry. In this paper a sintering pot test system was adopted to analyze the influence patterns and mechanisms of layered charging of solid fuel onthesintermixbedsuaceanddeteminetheappropriateprocesssysmfothelayeredchargingonthesintemixbed surface.The study results indicate that layered charging of fuel on the sinter mix bed surface has the potential to improve sintering performance;however, uniformly distributing the fuel on the surface layer is crucial for effectively serving its functions of enhancing quality and reducing carbon. By increasing the proportion of layered charging fuel on the bed surface,and enhancing the depth of layered charging fuel on the bed surface,the sintering indices initiallyincreasedand then decreased. Furthermore,as the particlesizeof the fuel used for layered charging increased,all sintering indicesshowed an upward trend. Therefore,the suitable layered charging parameters are as follows: the layered charging ratio should be 5,a fuel particle size should be >3 mm (coarse particles),and the layered charging depth should be 50 mm. Under these conditions the solid fuel consumption for sintering can be reduced from52.56 kg/t to 50.51 kg/t. The low-carbon sinteringtechnologyoflayeredchargingsoidfuelonthesintermixbedsurfacecanoptmizetherationalityofthethermal distribution along the bed height and make the amount of bonding phase minerals of the surface and upper layers of the sinter increase and make the form of them predominantly be high-strength acicular. The study findings can provide theoreticaguidanceandtechnicalsupportfortheindustrialapplicationofthistechnology.