SLAGLESS – Advanced Oxygen Lance Technology for BOF Converters
The SLAGLESS is an innovative technology developed to prevent slag accumulation along the body of oxygen-blowing lances in Basic Oxygen Furnace (BOF) converters. Its high-efficiency heat extraction system along the lower body of the lance ensures greater structural stability, extended lance lifespan, and reduced nozzle wear and replacement frequency.

Technical Features:

• Lance tip replaced by a cartridge, simplifying maintenance.
• Copper cartridge designed specifically for each BOF converter.
• High heat exchange capacity, with an exclusive design by Lumar Metals.
• Reduction of FeO in slag, improving process efficiency.
• Decreased soluble oxygen in steel, enhancing final product purity.
• Significant reduction of lance skull formation, minimizing operational disruptions.

Benefits:

• Less human intervention in high-risk areas, reducing exposure to high temperatures, dust, hot particles, and carbon monoxide.
• Greater operational stability, ensuring a smoother oxygen-blowing process.
• Reduced need for lance cleaning using torches or oxygen cutting.
• Lower labor requirements for lance replacement and maintenance.

The SLAGLESS technology is a major breakthrough in oxygen-blowing processes, delivering higher efficiency, improved safety, and cost savings in steel refining for BOF converters.

SLAGLESS CLEAN UP – Post-Combustion Technology for BOF Converter Mouth Cleaning

The SLAGLESS CLEAN UP is an evolution of the SLAGLESS technology, incorporating a post-combustion module for the efficient cleaning of the BOF (Basic Oxygen Furnace) converter mouth. During oxygen blowing, this system directs specialized jets to remove slag and metallic droplet residues, significantly reducing the need for manual cleaning.

Technical Features:

• Post-combustion module integrated into the lance cartridge.
• Targeted jet system for the converter cone region, where slag and metallic droplets accumulate.
• Oxygen consumption below 3% of the total volume, ensuring energy efficiency.
• Low carbon monoxide combustion (< 5%), with no impact on gas recovery.
• No temperature change in the dedusting system, maintaining process stability.

Benefits:

• Reduced time required for converter mouth cleaning.
• Minimized human intervention, improving operational safety.
• Faster scrap and hot metal charging, optimizing the production cycle.
• Less solid deposit buildup in the dedusting system, enhancing process efficiency.

The SLAGLESS CLEAN UP is the ideal solution for steel plants looking to automate converter mouth cleaning, ensuring higher efficiency, safety, and operational stability.

SLAGLESS MULTI – Post-Combustion Technology for Increased Metallic Yield and Shorter Blowing Time
The SLAGLESS MULTI is an advancement of SLAGLESS technology, designed to optimize the oxygen-blowing process in Basic Oxygen Furnace (BOF) converters. It incorporates secondary post-combustion nozzles, which increase the reaction rate in the first minutes of the blow, allowing for a higher scrap load and reduced blowing time, while maintaining refining efficiency.

Technical Features:

• Strategically positioned secondary nozzles around the lance cartridge.
• Post-combustion module that enhances the chemical reaction at the beginning of the blow.
• Adjustable O₂ jets, with controlled velocity for low and high intensity.
• Improves phosphorus reduction and maintains oxidation balance in slag.

Benefits:

• Increased metallic yield, reducing material losses.
• Higher scrap load capacity, lowering operational costs.
• Possibility of shorter and more intense blows (“hard blow”), improving refining efficiency.
• Reduced need for manual intervention in lance maintenance.

The SLAGLESS MULTI is the ideal solution for steel plants aiming to enhance productivity, reduce costs, and optimize BOF conversion processes.

Slagless Unlimited

Modularity, flexibility, and safety in a single system.

Slagless Unlimited represents the evolution of Lumar Metals’ traditional Slagless Technology. With an innovative concept, the solution integrates multiple advances into a modular system, allowing for greater customization flexibility, lower trial costs, and a significant reduction in operating costs.

The system architecture consists of:

Tip
Optimized blowing nozzles with various configurations (including angular and perpendicular angles, central nozzle, asymmetrical models, and PC models) that ensure jet precision and thermal efficiency.

Module 1
Special Lumar tube, with or without intermediate PC. Provides structural robustness and thermal stability to the assembly.

Module 2
Variety of configurations with steel, copper, and PC Clean Up Technology options. Simple and easy assembly like a conventional lance, with a focus on durability and continuous performance.

Slagless Sublance

More precision. More stability. More safety.

The Slagless Sublance is an innovation developed by Lumar Metals to increase the reliability and performance of the blowing process in the BOF.

The Slagless Sublance is another Lumar solution that combines applied engineering and operational safety, with ongoing technical support, to ensure the best performance in your BOF.

Lumar, attentive to customer needs, developed and improved the sub-lance concept.

Launches the exclusive SLAGLESS SUB-LANCE. This new technology concept maximize measurement efficiency and effectiveness to achieve the following benefits:

• Increase the number of measured heats;
• Prevent or drastically reduce the number of skulls on the face near the holder;
• Reduce maintenance interventions by increasing lance availability;
• Improve equipment cooling;
• Friendly maintenance.

However, if traditional sub-lances are still required, Lumar is ready to supply them as per design specified by the customer.

We also offer our dedicated team for replacement, repair, and maintenance services for sub-lances and blowing lances, as well as a favorable rental agreement and conditions geared towards the continuous pursuit of superior performance, applied to products bearing the Lumar Metals product engineering brand.

SUB-LANCE LUMAR CONVENTIONAL – Technology for Precise Measurement and Control in BOF Processes
The SUB-LANCE LUMAR CONVENTIONAL is an advanced technology designed to optimize measurement and control in Basic Oxygen Furnace (BOF) processes. Its innovative design ensures greater accuracy in temperature and carbon content readings, allowing real-time adjustments for more efficient steel refining. Additionally, it significantly reduces the need for manual intervention, enhancing operational safety and productivity.

Technical Features:

• High-durability copper cartridge, ensuring excellent heat dissipation.
• High-capacity heat exchange system, developed by Lumar Metals.
• Designed to reduce lance skull formation, minimizing operational disruptions.
• Fast and accurate measurements of molten bath temperature and chemical composition.
• Reduced lance wear, extending its lifespan and lowering maintenance costs.

Benefits:

• Less human intervention in high-risk conditions, such as extreme heat and hot particles.
• Greater operational stability, enabling quicker adjustments in the BOF process.
• Optimized blowing time, reducing waste and improving refining efficiency.
• Decreased need for lance cleaning, cutting down maintenance expenses.
• Improved steel quality, ensuring precise control of carbon content and final temperature.

The SUB-LANCE LUMAR CONVENTIONAL is the ideal solution for steel plants looking to enhance efficiency, improve process accuracy, and increase safety in BOF operations.

OPTY TIP – Advanced Technology for Optimizing Lance Tip Lifespan
The OPTY TIP is an innovative solution designed to extend the lifespan of oxygen-blowing lance tips in Basic Oxygen Furnace (BOF) converters. With an optimized design and detailed performance analysis, this technology enhances oxygen jet stability, reduces operational costs, and provides greater metallurgical control in the steel refining process.

Technical Features:

• Review and enhancement of the lance cooling system.
• Optimization of nozzle design, reducing premature wear.
• Shock Wave Less technology, ensuring greater stability of the oxygen jet.
• Comparative analysis of operational data, identifying improvement opportunities.
• Monitoring of lance tip lifespan, with recommendations for ideal replacement timing.

Benefits:

• Extended lance tip durability, reducing the need for frequent replacements.
• Greater oxygen jet stability, improving refining process efficiency.
• Reduced operational costs, minimizing waste and optimizing lance performance.
• Enhanced metallurgical control, ensuring greater predictability and steel refining quality.
• Technical support for adjustments and lance design improvements, tailored to customer needs.

The OPTY TIP is the ideal choice for steel plants aiming to reduce costs, improve BOF process efficiency, and extend the lifespan of oxygen-blowing lances.