Steel Making

The steelmaking process involves converting liquid iron into steel via basic oxygen furnace (B0F, also known as converter) or melting scrap steel and/or direct reduced iron (DRl) in an electric arc furnace (EAF).Recovery of BOF gas is the single most energy-saving improvement in the BOF proceSs, making it a net energy producer. The BOF gas containing approximately 70-80% carbon monoxide(CO) is usually recovered in gas holder for future use.···

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Steel Making

Our Comprehensive Steel Making Solutions

Our solutions enable safe gas recovery and exhaust monitoring in BOF, EAF, and CDQ operations.

FPI’s Laser Gas Analyzer (LGA) is seamlessly customized for this challenging application. The non-contact laser and sensor combined with continuous purge results in virtually maintenance free. Enhanced with FPI’s patented one-piece-half-open flange makes LGA the benchmark monitor for electrostatic tar precipitator, realizing minimum 70-80% laser transmittance given the extremely harsh condition. High-speed response (down to 1s) of the in-situ analyzer highlights its reliability for safety control. The extreme monochromaticity of laser spectrum ensures no cross-interference with all other gas species.

In EAF and CDQ, LGA tracks CO, CO2, O2, H2, and H2S with <1s response, preventing explosions and optimizing desulfurization towers for 98% H2S removal. Integration with purge systems ensures maintenance-free operation, reducing downtime by 20% and supporting ISO 11047 for gas analysis in steel making.

Our Solution Process: From Evaluation to Continuous Improvement

Our methodical approach drives success

Evaluation

Assess BOF gas recovery, EAF exhaust flows, and CDQ temperatures to identify safety risks and efficiency gaps.

Customization

Configure LGA for BOF holders or EAF ducts, ensuring ATEX certification and DCS integration.

Implementation

Deploy systems in 3-5 weeks with zero downtime, including training and initial H2S calibration.

Improvement

Provide 24/7 remote monitoring, annual upgrades, and 2-year warranty for 99% uptime.

Why Choose FPI as Your Steel Making Solutions Partner?

FPI excels in steel making by prioritizing gas recovery precision and EAF hazard mitigation.

  • Gas Recovery Precision: LGA’s patented flange achieves 70-80% transmittance in tar-heavy BOF streams, tracking CO (70-80%) for 15% higher energy yield.
  • Hazard Mitigation: <1s H2S/O2 responses reduce explosion risks by 25%, with purge integration for zero-maintenance in 1200°C CDQ circuits.
  • Operational Boost: Real-time CO2/H2 data refines desulfurization, attaining 98% removal and 12% burning loss cuts.
  • Integrated Scalability: Deployed in 120+ mills, with DCS compatibility for 20% downtime savings.

Additional metrics: 20+ years in gas analytics, 95% customer satisfaction, equipped 120+ steel mills globally, in-situ laser for harsh conditions.

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