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通过建立1∶2的比例的水力学模型,对承德钢铁集团有限公司钒铁车间2t的钒铁炉底吹N2进行了水力学模拟实验,同时利用正交分析,主要考察了不同的吹气孔位置、吹气流量对铁水混匀时间以及熔池流态的影响.结果表明:不同的底吹气孔组合以及气体流量的控制,会对熔池的混匀产生很大的影响.对实验数据采取正交分析,可以发现当吹气孔位置为e-b-d,吹气流量为1092L·min-1时,气体对熔池的搅拌能力是最强的,此时铁水混匀所需时间最短,且流场分布合理.
Through the establishment of a 1: 2 ratio hydraulic model, the hydraulic simulation experiment was carried out on 2t vanadium-iron-iron furnace bottom blowing N2 in Chengde Iron & Steel Group Co., Ltd. At the same time, orthogonal experiment was used to investigate the different positions of blowing holes , The effect of blowing air flow on the hot metal mixing time and the bath flow pattern were studied.The results showed that different combinations of bottom blowing holes and gas flow rate had a great influence on the mixing of the molten pool.The experimental data were positive It can be found that when the blow hole position is ebd and the blowing air flow rate is 1092L · min-1, the mixing ability of gas to molten pool is the strongest, and the mixing time of molten iron is the shortest, and the flow field distribution is reasonable .