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为了降低高炉铜冷却壁的造价,开发了一种厚度为90 mm的薄型铜冷却壁。通过热态试验测量了高温下冷却壁的温度分布和冷面应变分布,通过数值模拟计算了冷却壁的温度场和应力应变场。热态试验和数值模拟结果符合较好。研究结果表明,薄型铜冷却壁能承受的最大热负荷为220 kW/m2,在高炉炉况下的基体温度以及由此产生的热应力都不足以使其破坏,满足长寿高炉的要求。
In order to reduce the cost of blast furnace copper staves, a thin copper stave was developed with a thickness of 90 mm. The temperature distribution and cold strain distribution of the cooling wall at high temperature were measured by the thermal test. The temperature field and stress-strain field of the cooling wall were calculated by numerical simulation. Thermal test and numerical simulation results are in good agreement. The results show that the maximum thermal load that can be sustained by the thin copper cooling stave is 220 kW / m2. The temperature of the substrate and the thermal stress caused by it in the blast furnace condition are not enough to destroy the blast furnace and meet the requirements of the longevity blast furnace.