The secondary gun probe is suitable for converters equipped with a secondary gun system. During the smelting process, the temperature of the molten steel, carbon content, oxygen content and steel samples are collected online. The KD-TSC and KD-TSO sub-gun probes can control the smelting process and end points accurately, realize automated steelmaking, shorten steel output time, and increase the carbon temperature end point double hits.

Product Introduction

The secondary gun probe is suitable for converters equipped with a secondary gun system. During the smelting process, the temperature of the molten steel, carbon content, oxygen content and steel samples are collected online. The KD-TSC and KD-TSO sub-gun probes can control the smelting process and end points accurately, realize automated steelmaking, shorten steel output time, and increase the carbon temperature end point double hits.

The Sub-lance Probe is a high-performance, multi-functional measurement device designed forusingwith a sub-lance system in basic oxygen furnace (BOF) steelmaking. This automated immersion probe enables precise, real-time monitoring of key molten steel parameterssuch as temperature, oxygen activity, and carbon contentduring the blowing process without interrupting operations.

Engineered for seamless integration with BOF sub-lance arms, the probe delivers fast and reliable data critical for dynamic process control, optimized refining, and consistent steel quality.

Technical parameters

Product Features

1) Sub-gun technology is the main method of converter automatic steelmaking. Through the secondary gun measurement system, the static-dynamic control of the converter can be realized, completely changing the history of traditional steelmaking mode and relying on experience to make steelmaking;

2) Improve smelting accuracy and product quality, save smelting time and energy consumption, and reduce labor intensity, etc.;

3) The advantages of high accuracy, good reproducibility and high measurement rate.

Automated Immersion: Designed for robotic use with sub-lance systemsfully automated, precise, and repeatable.

Multi-parameter Capability: Measures temperature, oxygen activity, and optionally carbon content or sampling.

High-temperature Durability: Built to withstand immersion in molten steel at up to 1700°C.

Quick Response Time: Delivers complete measurement data in under 10 seconds.

Disposable & Pre-calibrated: One-time-use probe ensures clean measurement with no need for field calibration.

Product Advantages

Non-intrusive Measurement: Enables monitoring during blowing without halting the process, reducing delays and energy loss.

Improved Process Control: Provides real-time feedback for oxygen blowing endpoint control and alloying strategies.

Enhanced Steel Quality: Accurate detection of oxygen and temperature reduces reblows, improves yield, and minimizes inclusion formation.

Labor Cost Reduction: Automation eliminates manual immersion, improving safety and reducing operator workload.

Customizable Configuration: Available in multiple formatstemperature-only, temperature + oxygen, or full combined probes with sampling.

Product Details

Measuring Parameters:

Temperature: via Type R, S, or B thermocouples

Oxygen Activity: solid electrolyte zirconia sensor

Optional: Carbon estimation (via algorithm), sampling cartridge

Operating Temperature: 1500–1700°C

Measurement Time: <10 seconds

Design Type: Single-use, immersion-type probe

Sheath Material: High-grade refractory ceramic

Connector: Compatible with standard sub-lance probe holders

Applications

BOF Endpoint Detection: Accurately measure steel temperature and oxygen level at the end of the blowing process.

Process Automation: Integration into sub-lance control systems for hands-free operation.

Alloying Optimization: Precise control of the deoxidation and alloying stages.

Quality Assurance: Ensure target steel properties and reduce variation between heats.

FAQ

Q1: Is the sub-lance probe reusable?

A: No. It is a disposable, single-use probe to ensure accurate and contamination-free results.

Q2: How does it integrate with our sub-lance system?

A: The probe is designed with a universal mount and electrical interface compatible with most standard BOF sub-lance arms.

Q3: What maintenance does the probe require?

A: None. It is pre-assembled, sealed, and ready for immediate use.

Q4: Can it provide carbon content directly?

A: The probe does not measure carbon directly but allows estimation using oxygen and temperature values with software algorithms.

Q5: What is the storage life?

A: 12 months under dry, controlled storage conditions.