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首页> 外文期刊>Applied thermal engineering: Design, processes, equipment, economics >Energetic analysis of reheating furnaces in the combustion of coke oven gas, Linz-Donawitz gas and blast furnace gas in the steel industry
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Energetic analysis of reheating furnaces in the combustion of coke oven gas, Linz-Donawitz gas and blast furnace gas in the steel industry

机译：钢铁工业燃气燃气燃烧中的再加热炉的精力充沛分析

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摘要

The reheating furnace of the steel industry was evaluated in the present study, which uses the gas mixture from coke oven (COG), steelmaking process "Linz-Donawitz" (LDG) and blast furnace (BFG); with the production of steel laminates being its main activity. Two methods were developed in this work to deal with energy consumption. The first dealt with improved estimation of heat losses in the furnace, and the second dealt with recovery of heat and its use in load preheating and combustion air preheating. These evaluations were intended to determine the best selection of material for insulation of the furnace, in order to increase heat transfer, to obtain an economy in fuel consumption, and to improve technical energy indicators of production and heat generation, as well as to improve the efficiency of the furnace and the combustion process. When developing the present study in the reheating furnace it was evidenced an economy in the fuel consumption of the COG/LDG mixture of 6606 m(3)/h and 4627 m(3)/h for the load preheating and the air preheating, respectively. In addition, efficiency of the furnace was increased by 23.3% and 15.2%, with the technical energy indicators improved by 18.9% and 13.2% in each case. For the COG/BFG mixture, the results obtained were similar.
机译：在本研究中评估了钢铁工业的再加热炉，它使用来自焦炉（COG），炼钢工艺“LINZ-DONAWITZ”（LDG）和高炉（BFG）的气体混合物;随着钢层压材料的主要活动。在这项工作中开发了两种方法来处理能源消耗。第一次处理炉中热损失估计，第二次涉及热量恢复及其在负荷预热和燃烧空气预热中的使用。这些评估旨在确定炉子绝缘材料的最佳选择，以增加热传递，以获得燃料消耗的经济，并改善生产和发热的技术能源指标，以及改善炉子效率和燃烧过程。当在再加热炉中开发本研究时，它分别证明了6606米（3）/ h和4627米（3）/ h的肠/ LDG混合物的燃料消耗中的经济分别分别用于载荷预热和空气预热。此外，炉子的效率增加了23.3％和15.2％，技术能源指标在每种情况下提高18.9％和13.2％。对于COG / BFG混合物，得到的结果是相似的。

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