Reduction of Nitrogen Oxides Emissions from a Coal-Fired Boiler Unit
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URI (для ссылок/цитирований):
https://elib.sfu-kras.ru/handle/2311/33096Автор:
Zhuikov, A. V.
Feoktistov, D.
Koshurnikova, N. N.
Zlenko, L. V.
Коллективный автор:
Научно-исследовательская часть
Дата:
2016-01Журнал:
EPJ Web of ConferencesКвартиль журнала в Scopus:
без квартиляБиблиографическое описание:
Zhuikov, A. V. Reduction of Nitrogen Oxides Emissions from a Coal-Fired Boiler Unit [Текст] / A. V. Zhuikov, D. Feoktistov, N. N. Koshurnikova, L. V. Zlenko // EPJ Web of Conferences: Thermophysical Basis of Energy Technologies 2015. — 2016. — Т. 11.Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала.
Аннотация:
During combustion of fossil fuels a large amount of harmful substances are
discharged into the atmospheres of cities by industrial heating boiler houses. The most harmful
substances among them are nitrogen oxides. The paper presents one of the most effective
technological solutions for suppressing nitrogen oxides; it is arrangement of circulation process
with additional mounting of the nozzle directed into the bottom of the ash hopper. When brown
high-moisture coals are burnt in the medium power boilers, generally fuel nitrogen oxides are
produced. It is possible to reduce their production by two ways: lowering the temperature in the
core of the torch or decreasing the excess-air factor in the boiler furnace. Proposed solution
includes the arrangement of burning process with additional nozzle installed in the lower part
of the ash hopper. Air supply from these nozzles creates vortex involving large unburned fuel
particles in multiple circulations. Thereby time of their staying in the combustion zone is
prolonging. The findings describe the results of the proposed solution; and recommendations
for the use of this technological method are given for other boilers.