Direct Injection Of Urea Modification And Practice Of Nitrate Removal Method Based On A No.Three Furnace Of Zhang Electric

As the country is increasingly demanding environmental protection and energy-saving emission reduction tasks are increasingly heavy,so the national thermal power plant is in the energy-saving emission reduction period.Denitrification as an important member of energy-saving emission reduction,denitrification naturally becomes a top priority.As the coal-fired power plant combustionof nitrogen oxides is mainly NO,followed by a part of NO₂,and NO encountered oxygen in the air will become NO₂,because the culprit of photochemical smog is nitrogen oxides.It is necessary to strictly control the nitrogen Oxide generation.Coal-fired power plants consume a lot of coal every day,so coal-fired power plants have become an important control object.At present,the main denitrification technology has selective catalytic reduction method-SCR,non-selective catalytic reduction method-SNCR-SCR flue gas denitration technology,electron beam irradiation simultaneous desulfurization and denitrification technology,corona discharge plasma denitration technology,lime/gypsum Denitrification technology.As the traditional denitrification urea pyrolysis process has complex equipment,early investment,large energy consumption,etc.,and the furnace urea direct injection ammonia technology can save electricity and urea pyrolysis device equipment,to further simplify the equipment,reduce energy consumption,So once the introduction of the market will be a great access to the national affirmation and power plant favorable.Zhangjiakou Power Plant No.3 coal-fired units?1×300MW?boiler SCR full flue gas denitrification ultra-low emission transformation program using urea direct injection technology,the implementation of"safe,reliable,affordable,in line with national conditions,"the power construction policy,Program.After the transformation of the social benefits is obvious,with the improvement of China's environmental protection level,the implementation of environmental policies will bring great environmental benefits.Through the ultra-low emission of denitrification in the active unit,the No.3 boiler of Zhangjiakou Power Plant will reduce the nitrogen oxides by339.3t/a than the existing denitrification system,and realize the clean burning in a comprehensive way.Economic and construction services in Jin Tang area.