Converter Molten Steel Detection Probe System
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Solution Overview
Problem
Current steelmaking detection systems fail to provide real-time and continuous monitoring of molten steel temperature and composition during the converter steelmaking process, leading to suboptimal economic and technical indexes and increased production risks.
Innovation Solution
A system comprising a seating brick, a probe conveying pipe, and multiple detection probes, including temperature, carbon, oxygen, and phosphorus probes, positioned on the side wall of the converter, allowing for continuous monitoring of molten steel parameters through a refractory material setup with a pushing mechanism and gas protection, enabling real-time data collection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional sub-lance detection system is used to detect temperature and composition of molten steel, then detection capability is improved, but detection timing is limited to middle and late stages of blowing, failing to provide real-time continuous monitoring
Solution Approach 1:
The detection probe is preliminarily positioned inside the converter through the probe conveying pipe before the blowing process begins. The probe is pre-installed in the optimal detection position, ready to immediately detect temperature and composition parameters from the start of blowing, eliminating the time loss associated with inserting probes during the process.
Solution Approach 2:
The detection probe remains continuously positioned within the molten steel throughout the entire blowing process, enabling uninterrupted real-time monitoring of temperature and composition parameters from early to late stages, ensuring continuous useful detection action without gaps or delays.
2Measurement precision
If detection probe is inserted from converter mouth to detect molten steel parameters, then detection is possible, but molten steel may flow out along the detection through hole causing safety hazards
Solution Approach 1:
Protective gas is introduced through the gas protection mechanism to create an inert atmosphere around the detection through hole. This inert environment prevents molten steel from flowing out along the detection through hole by displacing air and reducing pressure differentials that could cause steel leakage, ensuring safe continuous detection.
3Adaptability or versatility
If multiple detection probes are provided for comprehensive parameter monitoring, then detection comprehensiveness is improved, but device complexity increases
Solution Approach 1:
The detection probe is designed as a multi-functional integrated device that simultaneously measures multiple parameters including temperature, carbon content, oxygen activity, and phosphorus content. This universal probe structure provides comprehensive detection capability while avoiding the complexity of having separate probes for each parameter, as all detection functions are consolidated into a single integrated system.
Solution Approach 2:
Multiple detection functions for different parameters are merged into a single integrated detection probe assembly. The probe combines temperature detection, carbon content detection, oxygen activity detection, and phosphorus content detection capabilities in one unified structure, simplifying the overall system while maintaining comprehensive monitoring capability.
Data Source
AI summary
The present disclosure provides a system for continuously detecting the temperature and composition of molten steel during converter steelmaking, and relates to the technical field of steelmaking detection devices. A seating brick (3) and a probe conveying pipe (5) are provided on a side wall of a converter (1), and multiple probes are provided in different detection through holes (4) within the probe conveying pipe (5) respectively. The temperature of molten steel, the oxygen activity of the molten steel and the low carbon and phosphorus content in the molten steel within the converter can be detected in real time. This facilitates an operator adopting corresponding operational means to reach the smelting end point in an optimized manner so as to improve various economic and technical indexes in steelmaking.