首页> 外文期刊>Journal of University of Science and Technology Beijing >Designing for Long Campaign Life Blast Furnace(1)--The Mathematical Model of Temperature Field for Blast Furnace Lining and Cooling Apparatus and New Concept of Long Campaignship Blast Furnace Cooler
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Designing for Long Campaign Life Blast Furnace(1)--The Mathematical Model of Temperature Field for Blast Furnace Lining and Cooling Apparatus and New Concept of Long Campaignship Blast Furnace Cooler

机译:长寿命高炉设计(1)-高炉炉衬冷却装置温度场的数学模型及长寿命高炉冷却器的新概念

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摘要

The physical and mathematical model of temperature field for blast furnace stave coolers was established. The computation results show that the heat resistance of 2-6 mm water scale within the cooling pipe is about 7-20 of the total heat resistance of cooling stave body ,as for drilling duct type, the heat resistance of 2-6 mm water scale is about 88-98 of the total heat resistance. Using drilling duct or full cast pipe can eliminate gas clearance and coating layer between pipes and cast iron body and reduce the heat resistance of the cooler sharply and improve the coefficient of heat transfer to a great extent .The water velocity within coolers can be kept at the level of 0.5-1.5m/s ,the higher water velocity can not decrease the hot surface temperature, but can increase energy consumption for cooling water.
机译:建立了高炉冷却壁温度场的物理数学模型。计算结果表明,冷却管内2-6mm水垢的热阻约为冷却壁总热阻的7-20。约为总耐热性的88-98。使用钻探风道或满铸管可以消除管与铸铁体之间的气体间隙和涂层,并显着降低冷却器的耐热性并大大提高热传递系数。可以保持冷却器内的水速保持在在0.5-1.5m / s的水位下,较高的水速不能降低热表面温度,但会增加冷却水的能耗。

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