About EAF and environment

International Conference on Applied Sciences 2014

Ioana, A.^1 ; Constantin, N.^1 ; Moldovan, P.^1

Politehnica University of Bucharest, Science and Engineering Materials Faculty, 313 Spl. Independentei, Bucharest, Romania^1

关键词: Chemical compositions;    Complex mechanisms;    Electric arc furnace;    Energy consumer;    Industrial experiments;    Oxidizing chemicals;    Polluting emission;    Steel refining;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/85/1/012015/pdf
DOI  :  10.1088/1757-899X/85/1/012015

来源: IOP

【 摘 要 】

In this paper we present the results of industrial experiments consisted in determination, by specialized measurements, of the dust percentage in the evacuated gases from the EAF and of chemical composition of polluting burnt gases. The electric arc furnaces (EAFs), as powerful energy consumers, are also polluting emissions generators with an important environmental impact. The steel refining in the EAF is based on a complex mechanism of oxidizing chemical processes, due to the introduced oxygen and air. A first step is the diffusion and adsorption on the slag surface of molecular oxygen. The most significant polluting emissions of the EAF are metallic and oxides powders driven by emergent gases.