EAF

EAF

At Tallman Technologies, we combine in-depth experience in the engineering, design and manufacturing of industrial copper components with steelmaking process experience and expertise. Together with a centrifugal casting process unique to the industry, state-of-the-art computational fluid dynamic (CFD) modeling, SolidWorks 3D design and modeling software, and multi-axis CNC manufacturing, Tallman Technologies provides a complete solution to the steel mill for their water cooled copper requirements..

Products

Tallman Supersonic Carbon Injector

The Tallman Supersonic Carbon Injector (TSCi™) uses supersonic jets to create a coherent injection stream, delivering carbon to the bath at almost twice the speed of sound. As a turnkey carbon injection system, the assembly can be easily installed in any existing furnace using readily available plant air.

Tallman Supersonic Carbon Injector

Benefits:

  • Improved carbon injection efficiency
    • Decrease in total carbon consumption
    • Increase in Metallic Yield from reduction of FeO to [Fe]
    • Decrease in carbon lost to the off-gas system
  • Improved foamy slag formation
    • Improved harmonics and electrode regulation
    • Increased delta and panel life
    • Decreased electrode consumption and refractory costs
  • Reduced injection system maintenance
    • Supersonic flow reduces wear on the delivery system
    • Eliminates plugging
    • Decreased Power Off Time
  • Simple to install
    • Utilizes only existing plant air
    • Can be retrofitted into virtually any installation

Tallman Technologies TSCi™

Straight Pipe Injector


Tallman Supersonic Lime Injector

The Tallman Supersonic Carbon Injector (TSLI) uses supersonic jets to create a coherent injection stream, delivering HiCal lime and DoloLime to the bath at almost twice the speed of sound. As a turn-key lime injection system, the assembly can be easily installed in any existing furnace using readily available plant air.

Tallman Supersonic Lime Injector

Benefits:

  • Improved lime injection efficiency
    • Decrease in lime consumption
    • Decrease in lime lost to the off-gas system
  • Improved foamy slag formation
    • Improved harmonics and electrode regulation
    • Increased delta and panel life
    • Decreased electrode consumption and refractory cost
  • Simple to install
    • Utilizes only existing plant air
    • Can be retrofitted into virtually any installation

EAF Lance Tips

Tallman Technologies produces EAF Lance Tips using a proprietary and unique centrifugal casting grain refinement method. This method results in a monolithic Lance Tip with outstanding jet precision and wear characteristics, both of which are proven to be critical to excellent performance and increased Lance Tip life.

Tallman Technologies’ EAF Lance Tips utilize our patented SWIRL COOL™ technology. Using computer-based computational fluid dynamic models, the internal geometry of the Lance Tip is designed to maximize cooling efficiency, extending Lance Tip life.

Tallman Technologies has adapted supersonic jet technology from the aerospace industry specifically for the unique requirements of high temperature steelmaking processes. Together with our centrifugal casting technology and state-of-the-art 6-axis CNC machines, the complex geometry in Tallman Technologies’ EAF Lance Tips offer exceptional precision and efficiency, leading to improved steelmaking performance and yield.

EAF Lance Tips


Sill Panels

The Tallman Sill Panel improves metallurgical performance by positioning your burners closer to the bath, for any burner system or furnace design. Utilizing a replaceable Front Burner Panel with adjustable burner mounting, the Tallman SILL Panel design provides complete customization with reduced maintenance costs. Simply replace the Front Burner Panel while the rest of the assembly remains in the furnace. Separate cooling channels, with individual water connections, allows for flow rate customization.

Sill Panels


Cast Copper Water Cooled Panels

Experience has proven that copper panels along the sill result in increased furnace performance and reduction in maintenance costs.

Tallman Technologies provides custom designed, water-cooled copper panels. With CFD simulation, water channels are custom designed to improve panel cooling. This improves panel life and reduces replacement cost.

Cast copper water-cooled panels better absorb and distribute localized heat inputs when compared to conventional steel or copper pipe panel designs. As a result, cast copper water-cooled panels are not subject to weld or cracking failures; leading to significantly better performance and reduced costs.

Tallman Technologies also designs and manufactures cast copper panels for the entire EAF.

Cast Copper Water Cooled Kettles


Finger Cooler Panels

A clever, one-piece design utilizes a water-cooled copper back plate together with solid, high purity copper cooling fins or ‘fingers’. During installation the back plate is connected to a cooling water circuit and the slots between the ‘fingers’ are packed with refractory.

The result is effective cooling and much improved wear characteristics compared to refractory alone. The heat exchanger design virtually guaranties that the cooling water stays outside of the furnace, even as the cooling fingers and refractory find their equilibrium thickness.

Tallman Finger Cooler Panels are custom designed for your EAF and can be installed in demanding and difficult areas of the EAF such as the sill, around the slag door, and the transition of the EBT. Finger Cooler Panels can also be used under sidewall burners/lances, or at any other hot spot located around the furnace.

Finger Cooler Panels
Finger Cooler Panels
Finger Cooler Panels
Finger Cooler Panels

Services

Tallman Technologies offers Repair and Maintenance services at our Foundry and Machine Shop located in Burlington, Ontario, Canada. We restore water-cooled copper panels, water-cooled probes and any other copper, steel or aluminum bronze piece in the EAF Shop. We can also provide upgrades and improvements to reduce maintenance costs and improve product quality.

Tallman can provide installation and commission services for all of our EAF products and technologies.

Our product development team can develop custom refining solutions optimized for your process and provide the technical support needed to enhance your performance.

Technologies

Tallman Supersonic Carbon Injector (TSCi)

The Tallman Supersonic Carbon Injector (TSCi™) uses supersonic jets to create a coherent injection stream, delivering carbon to the bath at almost twice the speed of sound. As a turnkey carbon injection system, the assembly can be easily installed in any existing furnace using readily available plant air.

Tallman Supersonic Carbon Injector

Tallman Supersonic Lime Injector (TSLi)

The Tallman Supersonic Carbon Injector (TSLi) uses supersonic jets to create a coherent injection stream, delivering HiCal lime and DoloLime to the bath at almost twice the speed of sound. As a turn-key lime injection system, the assembly can be easily installed in any existing furnace using readily available plant air.

Tallman Supersonic Lime Injector

Computational Fluid Dynamics

Tallman Technologies employs computational fluid dynamics (CFD) modeling in order to visualize and predict how liquid flows through our products. This allows us to optimize the cooling efficiency of a particular design and predict the effectiveness of any modifications.

CFD
CFD
CFD