Experimental Study on the Impact of Oxygen Lances on Bath Mixing in EAF

Abstract:

Stirring characteristics of wall oxygen lances of EAF and bath mixing under different conditions were studied by using an 1/10 length scale down of cold model of 100-ton capacity EAF. The effects of horizontal angle, vertical angle of a lance and the distribution of lances along the EAF wall on bath stirring and mixing were researched experimentally. The results showed that the horizontal angle of the lances had significant impact on the local fluid flow and mixing time, whereas the mixing time is less affected by the lance vertical angle relatively. It was found that the shortest mixing time had been obtained in the conditions that the horizontal angles were -3°, 0° and -2° respectively under the modified lance distribution in the variant shape of bath. Compared with the mixing time measured in the conditions of the prototype, the average mixing time for p1, p2 and p3 and the mixing time for p4 point were reduced by 52.3% and 44.7% respectively with the optimum scheme.

• Periodical: Advanced Materials Research (Volume 402)
• Pages: 425-431
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.402.425
• Online since: November 2011
• Authors: Li Xue Qin, Da Qiang Cang, Dong Xu, Jian Feng Duan
• Keywords: Cold Model, EAF, Mixing Time, Wall Oxygen Lance

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