Iron and steel sinter header flue gas monitoring (replacement of transmission fume meter)
--Baosteel Group

Scene Characterization:

Sinter header flue gas temperature is high (200-400℃), dust concentration fluctuates (50-400℃).
800 mg/m³) and contains large particles of iron oxides.

The original technology pain point:

• The transmission method requires buttress installation, and flue vibration tends to shift the optical path, requiring frequent calibration;
• Poor accuracy at low flow rates, nonlinear decay of transmitted light intensity due to large particle settling, and high measurements 30%.

Advantages of the dual detector backscatter solution

• Anti-vibration same-side mounting, dual detectors dynamically compensate for reflected interference from the flue wall (AI-assisted suppression of background light interference)
• Wide-range design (0-10-2000mg/m³) covers concentration fluctuation, response time ≤ 10s, real-time capture of sintering condition changes.

Application effect: After the replacement, the data capture rate increased from 82% to 98%, and the annual maintenance cost decreased by 60%.