Hydrogen-rich carbon cycle blast furnace gas multi-burner distribution regulation method

By dividing the blast furnace throat section into concentric ring zones and constructing a tuyere response model, the problem of uneven gas flow distribution in a hydrogen-rich carbon circulating blast furnace was solved, achieving efficient and precise gas flow control and stable operation.

CN122405916APending Publication Date: 2026-07-17XINJIANG BAYI IRON & STEEL CO LTD
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Patent Information

Application Number
CN202610404215.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing methods for controlling the distribution of blast furnace gas flow are insufficient to address the problem of uneven gas flow distribution in localized areas of hydrogen-rich carbon circulating blast furnaces, which affects the stable operation of the entire furnace. Furthermore, these methods suffer from low control precision and slow response speed.

Method used

By dividing the blast furnace throat section into multiple concentric ring zones and defining the gas flow development index, a response model for independently adjustable tuyeres is constructed by combining the geometric layout of the tuyeres with fluid dynamics simulation, thereby achieving graded control and automatically identifying and optimizing the gas flow distribution.

Benefits of technology

It achieves uniform distribution and stable operation of hydrogen-rich carbon cycle blast furnace gas flow, improves control precision and response speed, and reduces energy consumption and carbon emissions.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明属于高炉炼铁技术领域,具体公开了一种富氢碳循环高炉煤气多风口分布调控方法,将高炉炉喉截面沿径向划分为多个区,为每个区域定义煤气流发展指数,根据不同的流股对不同区域的影响设置对应的权重,构建可独立调节风口的喷吹参数与煤气流变化量的响应模型,约束条件设置风口分级调控策略,响应模型读取各区域煤气流监测数据,计算并提供调控数据;通过将高炉炉喉截面划分为多个区,确定各风口对不同区域的影响权重,构建可独立调节风口的响应模型,通过分级调控策略实现各区域煤气流的精准匹配与优化分布;以解决现有高炉煤气流分布调控方法难以应对局部煤气流分布不均,当个别风口区域出现煤气流不足时,影响全炉的稳定运行的问题。
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