The air-fuel-ratio (AFR) has a strong impact on the combustion process. It influences ignition delay, combustion efficiency and LoI (loss on ignition), the emission levels as well as slagging and fouling. In order to improve combustion quality and boiler performance online reading of the coal flow in each coal pipe is required.
Coalflow is an online system for dynamic coal flow monitoring and balancing. It is based on non-intrusive micro-wave sensors which continuously measure the mass flow and coal velocity inside coal pipes and quantify the imbalance of coal flow from pipe to pipe. In combination with Total AFR™ Management Coalflow enables to adjust the air-fuel-ratio at burner level.

Real-time Flow Measurement

• Reading of current mass flow situation
• High sensitivity and dynamics
• Independent of fuel type/quality
• Easily retrofitted to existing plants/ports
• Essential for combustion optimization
• Seamless integration into DCS
• EPRI tested, patented system
• Available as stationary and mobile system
• More than 1,200 installations worldwide

Benefits

• Fuel flow balancing
• Reduction of fuel consumption
• Reduction of Lol, emissions and slagging
• Increasing efficiency
• Non-intrusive measurement
• Applicable to various solid fuels e.g. hard coal, biomass, lignite