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Dual-scale Low NOx Combustion Technology for T-firing Boilers

Dual-scale Low NOx Combustion Technology for T-firing Boilers

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Dual-scale low NOx combustion technology optimizes the pulverized coal air flow in the furnace in the spacial scale to achieve differential adjustment to the 3-field characteristics (temperature, coal/air concentration,velocity), meanwhile this differential adjustment to the 3-field can be simultaneously realized by relevant node area combustion control in the process scale.
low nox combustion

3-field characteristics adjustment on the two scales of the furnace combustion combined with partition optimization and commissioning can truly realize the function of anti-slag, excellent performance of stable combustion and significant NOx emission reduction of the boiler.

 
300x200

Main combustion air nozzles

300x200

Separated over fire air nozzles

Product Features
Significant reduction (around 40%~60%) of NOx emission with high burning rate. Boiler efficiency remains unchanged
Boiler defects like flue gas temperature deviation , slagging, high temperature corrosion, high carbon content in ash, high exhaust gas, etc can be solved after applying retrofit of Low-NOx Combustion Technology.
Realization of low oxygen combustion without lowering boiler efficiency.
Perfect combination with plasma ignition technology to speeding up pulverized coal burning and save fuel oil in boiler startup.
Improvement of low load combustion stabilization and the reliability of the boiler operation.
Simple structure, easy construction, flexible operation.
Less initial investment, one-time retrofit investment, no running cost.
Short retrofit time needed, usually completed in one overhaul time.
 
Application
By March 2020, Dual-scale Low-NOx Combustion Technology has been applied on more than 560 boilers.