Devices and methods for monitoring nozzle blockage and methods for manufacturing steel

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The monitoring device adjusts thresholds based on past data to improve nozzle blockage detection accuracy in continuous casting machines, addressing inaccuracies from part replacements and enhancing operational efficiency.

TWI934482BActive Publication Date: 2026-08-01JFE STEEL CORP

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Patent Information

Application Number: TW114106919
Authority / Receiving Office: TW · TW
Patent Type: Patents
Current Assignee / Owner
Priority Date: 2024-03-18
Filing Date: 2025-02-25
Publication Date: 2026-08-01
Estimated Expiration: 2045-02-24

Application Information

Patent Timeline

18 Mar 2024

Priority

25 Feb 2025

Application

TW114106919

01 Aug 2026

Publication

TWI934482B

IPC: B05B13/00; B05B1/12; B22D11/16

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Application Domain

Spray nozzles

Technology Topics

Spray nozzle Structural engineering

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AI Technical Summary

Technical Problem

Existing methods for monitoring nozzle blockage in continuous casting machines rely on pre-set threshold values, leading to inaccurate detection due to changes in water volume or back pressure after part replacement, resulting in excessive stoppages or missed blockages.

Method used

A monitoring device and method that adjusts threshold values based on past data and real-time monitoring, using a flow meter and pressure gauge/valve opening data to set dynamic thresholds, reducing the impact of individual part differences and improving detection accuracy.

Benefits of technology

Accurately detects nozzle blockages with high precision, minimizing unnecessary production stoppages and enhancing operational efficiency by adapting to changes in equipment conditions.

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Abstract

The present invention provides a device and method for monitoring nozzle blockage, as well as a method for manufacturing steel. The device for monitoring nozzle blockage includes: an acquisition unit (160) that acquires a first value as the value of a flow meter installed on a pipe attached to a manufacturing equipment having a spray nozzle, and a second value as the value of at least one of a pressure gauge and a valve opening, as the latest data; a setting unit (162) that sets a threshold value of the second value relative to the first value over time from past data of the first and second values; and a determination unit (163) that determines that nozzle blockage has occurred when the latest data is outside the range of the threshold value.

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