Experimental research on the behavior of the pneumatic transport of fine-grained iron

International Conference on Applied Sciences 2016

Andrei, V.^1 ; Hritac, M.^1 ; Constantin, N.^1 ; Dobrescu, C.^1

University Politehnica of Bucharest, Department of Engineering and Management of Metallic Materials Elaboration, 313 Splaiul Independentei, Bucharest

060042, Romania^1

关键词: Combustion pro-cess;    Dense state;    Experimental check;    Experimental research;    Fine grained;    Pneumatic transport;    Pulverized coals;    Tuyeres;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/163/1/012011/pdf
DOI  :  10.1088/1757-899X/163/1/012011

来源: IOP

【 摘 要 】

Mixed injection of fine-grained iron ore and pulverized coal in the furnace, involves determining the behavior of these materials during pneumatic transport in a dense state through the pipe and setting possibilities for adjusting the flow rate of material transported with the corresponding values of the process. Parameters of the pneumatic transport were determined for the main types of iron ore and chalk used in Arcelor Mittal Galati. Outside the intended purpose of injecting iron ore and flux, it was considered also the experimental check of the possibility for injecting ilmenite in the furnace for crucible protection purpose. The possibility of injecting cinder mill into the furnace was also considered. Injecting cinder could be taken into account for the recycling of ferrous waste in the furnace, also as additive for intensifying the combustion process around the tuyeres.