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利用ANSYS等有限元分析软件,对倒T型脱硫喷枪的热应力状态进行仿真分析研究,获得喷枪在5个工作循环下的热应力变化规律,并对其热应力裂纹破损机理进行研究。结果表明:随着喷枪使用次数的增加,喷枪最外层耐火材料热应力在喷吹阶段逐渐降低,提枪冷却阶段却呈升高趋势;随着工作循环的进行,喷枪各部分的热应力逐渐降低并趋于稳定;耐火材料的物性参数对喷枪热应力有一定的影响。
The finite element analysis software ANSYS was used to simulate and analyze the thermal stress state of the inverted T-type desulfurization lance. The thermal stress variation of the lance under the five working cycles was obtained and the thermal stress crack damage mechanism was also studied. The results show that the thermal stress of the outermost refractory material decreases with the increase of the number of lances applied, while the cooling period of the lances increases. As the working cycle progresses, the thermal stress of the lances gradually increases Reduce and tend to be stable; refractory material properties of the gun thermal stress have a certain impact.