Converter bottom blowing gas supply valve group and pressure-stabilizing regulation method therefor

The converter bottom blowing gas supply valve group and stabilizing pressure adjustment method address the challenges of slow adjustment speeds and pressure fluctuations by using parallel connections and regulation valve memory opening sets, achieving rapid pressure stabilization and stable flow adjustment in steel metallurgy processes.

EP4647515A1Pending Publication Date: 2025-11-12CHINA IRON & STEEL RESEARCH INSTITUTE GROUP CO LTD
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Patent Information

Application Number
EP2024909958
Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-12-27
Filing Date
2024-09-03
Publication Date
2025-11-12

AI Technical Summary

Technical Problem

Existing converter bottom blowing gas supply systems face challenges in achieving rapid pressure stabilization and stable flow adjustment during the gas supply process due to large fluctuations in gas supply pressure and slow adjustment speeds, which affect the smelting quality and efficiency of steel metallurgy processes.

Method used

A converter bottom blowing gas supply valve group and stabilizing pressure adjustment method, comprising main gas pipelines, branch gas pipelines, gas collecting pipe group, transiting pipe, and distributing group, with parallel connections and regulation valve memory opening sets to achieve rapid pressure stabilization and stable flow adjustment.

Benefits of technology

The system enables rapid pressure stabilization and stable flow adjustment with a flow regulation speed of ≤10s, flow regulation accuracy of ±1Nm3/h, and a flow stability coefficient of ≤0.02, improving the smelting quality and efficiency of steel metallurgy processes.

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Abstract

The present disclosure discloses a converter bottom blowing gas supply valve group and stabilizing pressure adjustment method, belongs to the technical field of ferrous metallurgy, and solves the problems of slow gas supply adjustment speed and slow stabilizing pressure speed during gas supply flow adjustment process of the existing converter bottom blowing gas supply valve group. A converter bottom blowing gas supply valve group, comprising main gas pipeline, branch gas pipeline, gas collecting pipe group; The gas collecting pipe group comprises collecting group, transiting pipe and distributing group; There are m main gas pipelines, which are connected in parallel, and each main gas pipeline is provided with main gas pipeline manual ball valve, main gas pipeline check valve, main gas pipeline pressure gauge, main gas pipeline cut-off valve, and main gas pipeline regulating valve; There are n branch gas pipelines, which are connected in parallel, and each branch gas pipeline is provided with manual ball valve, check valve, pressure gauge, regulating valve, and flow meter. The present disclosure has fast flow regulation and pressure regulation speed, and high accuracy.
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