Blast Furnace

With a global installed reference base we have the background and expertise to design, supply, build and install greenfield blast furnace operations.

We additionally offer unparalleled experience and unique capability to rebuild or extend campaigns of existing blast furnaces within a minimum outage period. Our experience has been developed and fine tuned over the years to provide project safety and certainty. By refreshing and upgrading existing equipment blast furnace operators can realize cost optimized, effective solutions.

As the environmental impact of iron and steelmaking has become increasingly important, we are focused on technologies which reduce blast furnace CO₂ emissions. Approximately 95% of the CO₂ emissions from blast furnace ironmaking come from the carbon fuels used., These can be mitigated by:

• Increasing performance leading to a reduced carbon requirement of the blast furnace
• Using carbon avoidance (e.g. hydrogen or hydrogen-rich gas injection into the blast furnace)
• Utilizing Carbon Capture and Utilization (CCU) technologies 

Technologies that reduce CO2 emissions

Sequence Impulse Process

The latest in blast furnace technology reduces CO₂ emissions, improves productivity, and provides significant operating cost savings. The process, in conjunction with existing pulverized coal injection, repurposes oxygen directly into the tuyeres by sending high energy, supersonic pulses deep into the raceway. Char materials which accumulate and block the ’dead-man’ are cleaned as a result. This leads to improved gas distribution and utilization as well as better drainage. Overall, lower fuel rate is achieved alongside an increased PCI rate and lower CO₂ emissions.

Hydrogen-Rich Gas Injection

The replacement of part of the traditional carbonaceous fuels with hydrogen-bearing alternatives is a practical way to provide incremental reductions in CO₂ emissions. Primetals Technologies can provide systems for the injection of natural gas, coke oven gas, and synthetic gases, and were instrumental in the design and safe implementation of the hydrogen injection system at Tata Steel, Jamshedpur in 2023

Carbon Capture & Utilization

Primetals Technologies are also providing the trial carbon capture facility which will be installed on a plant in Europe, to test the capabilities of the KM CDR Process^TM to remove CO₂ from blast furnace gases. This year-long trial will analyze the effectiveness of the Mitsubishi Heavy Industries’ world-leading amine scrubbing solution for use with blast furnace gases and will be followed by further trials with other gases. The technology has the potential to reduce steel CO₂ emissions by more than 80%.

Furnace Cooling
Our references include both plate-cooled and stave-cooled solutions.
Our stave-cooled solution utilizes copper and cast iron staves reducing the requirement for a large quantity of refractory to be utilized in the furnace stack. Unique anti-bend and anti-wear innovations ensure operators enjoy a problem free, long life, furnace cooling solution.

Hot blast systems
Our technology portfolio covers Internal and External Combustion Chamber Stoves as well as Top-Fired Burner variants. Customers have benefited from our experience of over 200 hot blast system installations over the last 20 years providing the optimized hot blast conditions, whilst minimising the overall fuel consumption. Our capability ranges from small assessment studies and repairs (including hot work) through to the supply of stoves on a full turnkey basis. Energy saving tuyere stocks ensure safe, efficient supply of hot blast to the furnace.

Technologies that improve efficiency

Gas Cleaning
Our complete portfolio offers both wet and dry (Merim) gas cleaning solutions, providing optimized gas cleaning with the potential to maximize energy recovery at the TRT. Our cyclone solution offers variable efficiency to aid management of dry dusts within your plant.

Furnace Equipment
Our portfolio includes a full range of ancilliary blast furnace operational equipment: 
Casthouse equipment (Taphole Mudgun, Taphole Opener, Tilting Runner, Jack Dam Drill)  |  Tuyere stocks wind distribution system  | Bleeder valves - safety relief valve for hot and dusty environments   | Equalizing and relief valves  |  Above burden probe - temperature and gas monitoring   |  Sub-burden probe  |  Stockline recorder  |  Radar level detection  |  Ignition lance  

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