含钒页岩焙烧用回转窑损坏的主要因素之一是因回转窑内部存在较高的温度和较大的温度梯度而导致窑内部存在较高的热应力引起的。从流体力学与传热的角度出发,利用Fluent软件对回转窑进行流体流动与传热模拟。将温度场模拟结果导入Ansys中作节点插值,然后计算回转窑的热应力。结果表明,回转窑热应力最大的地方就是回转窑耐火砖最先破损的地方。分析结果为评估热应力的危害性提供了保证,并为回转窑筒体的设计和优化提供理论指导。 One of the main factors that damage the rotary kiln with vanadium shale roasting is the high thermal stress in the kiln due to the higher temperature and larger temperature gradient inside the rotary kiln. From the perspective of fluid mechanics and heat transfer, Fluent software was used to simulate the fluid flow and heat transfer in the rotary kiln. The temperature field simulation results into Ansys for node interpolation, and then calculate the kiln thermal stress. The results show that the rotary kiln where the greatest thermal stress is the first kiln broken brick refractory place. The results provide a guarantee for the assessment of the damage of thermal stress and provide theoretical guidance for the design and optimization of rotary kiln cylinder.