A top-blown furnace feed control system and method

By monitoring and adjusting the injection pressure and flow rate in real time through the top-blown furnace feeding control system, and optimizing the position of the spray gun by combining numerical simulation, the problem of poor spray gun parameter adjustment effect in the existing technology has been solved, and stable and uniform material conveying and efficient metal smelting reaction have been achieved.

CN122360159APending Publication Date: 2026-07-10BEIJING REDC PNEUMATIC CONVEYING TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING REDC PNEUMATIC CONVEYING TECH CO LTD
Filing Date
2026-06-09
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

In existing top-blown smelting reaction systems, adjusting the lance parameters alone cannot achieve optimal smelting reaction results, thus affecting metal smelting efficiency.

Method used

A feeding control system for a top-blown furnace is provided, including a mixing and blowing device, a top-blown furnace, a spray pressure detection component, a flow control component, a pressure compensation device, and a control unit. By monitoring the spray pressure and flow rate in real time, the system adjusts the outlet pressure of the material blowing and conveying mechanism and the pressure of the pressure distributor to ensure that the spray pressure and flow rate are within a preset range. Combined with numerical simulation, the system optimizes the installation position of the spray gun to achieve stable and uniform material conveying.

Benefits of technology

It improves the efficiency of metal smelting reaction, ensures the stability and uniformity of material conveying, avoids lance clogging and local over-erosion, and enhances the control precision and stability of the smelting process.

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Abstract

This invention relates to the field of top-blown smelting technology, and provides a feeding control system and method for a top-blown furnace. The feeding control system includes a mixing and blowing device, a top-blown furnace, a spray gun, and a control unit. Considering the influence of factors such as the blowing pressure of the material, the immersion depth of the spray gun, and the actual conditions of the smelting pool on the material injection pressure of the spray gun in the top-blown furnace, the system monitors the injection pressure entering the spray gun in real time and compensates for the injection pressure by adjusting the material conveying pressure to ensure continuous material conveying. However, since the pressure compensation process affects the preset feeding speed, it is necessary to appropriately adjust the material flow rate. That is, the adjustment of the injection pressure affects the material flow, and the material flow rate needs to be appropriately adjusted to reach the preset flow rate to balance the pressure and flow rate, thereby providing stable and uniform material conveying and improving smelting efficiency while meeting the requirements of metal smelting reaction.
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