Page 68 - 国外钢铁技术信息内参（ 2022年5月）

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（二）现代化改造 DRI 竖炉以提高性能和产品质量

Y. M. Gordon , N. A. Spirin 2 ᇏݓࣁඋ࿐߶
1,2
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（1 加拿大赫氏公司；2 俄罗斯乌拉尔联邦大学）

摘要：竖炉的气体动力学和气体分布在提高产能、产品质量，减少天然气喷吹

量方面起到关键作用。通过数学建模，试验装置和工业装置研究优化气体分配装

置的设计参数。发明了在金属化区内天然气自重整过程中气体和炉料运动的并流
传热示意图，取得了专利，并在试验装置进行了测试。研究提出的新竖炉设计和 ᇏݓࣁඋ࿐߶

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改进方法采用了新型气体分配装置，可降低燃料消耗率，提高产能以及直接还原

铁的质量。

Modernization of DRI Shaft Furnaces to Improve

Performance and Product Quality

ABSTRACT： Gas dynamics and gas distribution in shaft furnace play a crucial role
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in improvement of furnace productivity, product quality and reduction in natural gas

rate. Optimum design parameters of gas distribution devices were investigated by

means of mathematical modeling, pilot plant and industrial installation studies. New

heat transfer co-current schematics of gas and material movement with self-reforming

of natural gas in metallization zone was invented, patented and tested at the pilot plant.

New shaft furnace design and improvements were proposed and new gas distribution
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devices were implemented, providing savings in fuel rate, increase in productivity and

improvements in the quality of direct reduced iron.

原文参考CMISI数据库： AISTech 2021—Proceedings of the Iron & Steel

Technology Conference 29 June-1 July 2021,Nashville, Tenn., USA

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