Method and apparatus for reducing exhaustion of nitrogen oxides from coal-fired boiler
Method and apparatus for reducing exhaustion of nitrogen oxides from coal-fired boiler
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F23B 5/00, F23B 7/00, F23C 9/06
Tsinghua Univ
Yao Qiang, Xuan Xiaoping, Liu Huiyong
Key Words:
reduce, exhaustion, nitrogen oxides, coal-fired boiler
A method for reducing the exhausted NOx of boiler using coal as fuel is characterized by stage blowing, stage combustion of fuel, improved combustion again, and spraying promoter for high densitrifying effect. The exhausted NOx can be reduced by more than 80%. The main burner on the wall of boiler is additionally provided with the reburning fuel nozzle, nitrogen agent nozzle, air nozzle, and promoter nozzle.

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