The sublance system, serving as a critical component in converter steelmaking alongside the top-blown oxygen lance, is a dedicated probe deployment mechanism that directly inserts measurement sensors into the molten bath. With interchangeable functional probes at its tip, this system enables real-time monitoring of molten steel conditions without requiring converter tilting or process interruption. Core capabilities include temperature measurement, carbon/oxygen determination, sampling, and liquid level detection, providing essential process data such as bath temperature and composition during refining. Renowned for exceptional operational reliability and measurement precision, sublance systems offer distinct advantages unattainable through alternative methods like flue gas analysis or manual sampling.

The fully mechanized sublance system achieves computerized control over vertical positioning, horizontal movement, probe handling, and data transmission. A complete sublance installation comprises three principal subsystems:

1. Sublance main assembly: Incorporating the lance structure, vertical drive mechanism, rotational/swivel system, Automatic Probe Changer (APC), sealing components, slag removal devices, probe storage units, and hydraulic/pneumatic control modules

2. Automated control system

3. Integrated measurement and data analysis system

As a primary method for acquiring real-time bath data, sublance technology enables dynamic process optimization through integration with advanced steelmaking models, significantly enhancing endpoint control precision. At the final refining stage, sublance measurements provide immediate technical basis for steel tapping decisions.

The integration of sublance systems with computational steelmaking models represents a fundamental pillar of intelligent steelmaking, delivering comprehensive benefits:

• Shortens converter cycle times

• Reduces refractory material consumption

• Improves metal yield rates

• Enhances energy efficiency through thermal loss mitigation
  This technology plays a strategic role in achieving sustainable steel production through:
  • Process optimization for energy conservation
  • Technical upgrading of production facilities
  • Compliance with smart manufacturing standards
  • Improved product quality control