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Effect of Lance Structure on Behavior of Coherent Jet in EAF Steelmaking Process

机译:喷枪结构对电弧炉炼钢过程中相干射流行为的影响

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摘要

During the electric arc furnace steelmaking process, the coherent jet technology was widely used to protect the kinetic energy of the supersonic oxygen jet and achieve better mixing effects. Comparing with the conventional oxygen lance, the coherent lance could increase the surface area of impaction cavity, resulting in a better stirring effect and higher reaction rate. However, there was limited research about the effect of restriction structure for the coherent lance tip on the flow field characteristic of the main oxygen jet. In this research, three kinds of restriction structures have been investigated by numerical simulation and combustion experiment at room and high ambient temperature conditions. Then an optimum restriction structure would be tested in a 75 t electrical arc furnace steelmaking process to verify its metallurgical property.
机译:在电弧炉炼钢过程中,相干射流技术被广泛用于保护超音速氧气射流的动能并达到更好的混合效果。与传统的氧气喷枪相比,相干喷枪可以增加撞击腔的表面积,从而具有更好的搅拌效果和更高的反应速率。然而,关于相干喷枪头的限制结构对主氧气射流流场特性影响的研究有限。在本研究中,通过数值模拟和室温和高温环境下的燃烧实验研究了三种限制结构。然后,将在75吨电弧炉炼钢工艺中测试最佳限制结构,以验证其冶金性能。

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