【摘要】 为探究高温烧结矿竖式冷却炉气固逆流冷却换热规律，文章基于欧拉模型和局部非热力学平衡理论，改变单一参数对烧结矿冷却炉换热过程进行研究，并构建■效率模型对不同参数变化下竖式冷却炉内传热效果进行评价。研究表明：冷却炉内同一高度下烧结矿温度沿径向整体均呈“M”型分布，冷却风压力沿径向均呈中间高两侧低的“驼峰”型分布，冷却风速沿径向均呈中间高两侧低的“双驼峰”型分布；在炉内换热过程中，当增大气固比、提升冷却段高度、扩大冷却段直径时，冷却效果增强，■效率减小，而扩大冷却段直径时，冷却效果降低，■效率增大；当增大气固比、提高进口风温、提升冷却段高度时，料层阻力损失增加，而扩大冷却段直径时，料层阻力损失减小。研究结果可为后续确定冷却炉最佳参数提供理论基础。更多还原

【Abstract】 In order to explore the cooling heat transfer law of gas-solid countercurrent of high-temperature sinter vertical cooling furnace, based on the Eulerian model and local non-thermodynamic equilibrium theory, a single parameter is changed to study the heat transfer process of sinter cooling furnace, and an energy efficiency model is constructed to evaluate the heat transfer effect in the vertical cooling furnace under different parameter changes.The results show that the sinter temperature in the cooling furnace is distributed in an “M” type along the radial direction, the cooling air pressure is distributed in a “Camelbak” type along the radial direction, and the cooling wind speed is distributed in a “Double Camelbak” type with high in the middle and low on both sides along the radial direction.In the process of heat exchange in the furnace, when the gas-solid ratio is increased, the height of the cooling section is increased, and the diameter of the cooling section is expanded, the cooling effect is enhanced, and the energy efficiency is reduced.When the diameter of the cooling section is expanded, the cooling effect is reduced and the energy efficiency is increased.When the gas-solid ratio, the inlet air temperature, and the height of the cooling section are increased, the resistance loss of the bed of material is increased, while when the diameter of the cooling section is expanded, the resistance loss of the bed of material is decreased.The results can provide a theoretical basis for determining the optimal parameters of the cooling furnace in the future.更多还原