What is low nitrogen combustion technology(3)
Fractional combustion of fuel
1. Fuel fractional combustion, also known as recombustion technology, mainly USES the principle of hydrocarbon reduction and NOx destruction to divide the whole combustion zone into three parts, which is introduced by lang feng-e as follows:
2. The factors affecting NOx reduction in the reburning zone are:
1) type of secondary fuel;
2) proportion of secondary fuel;
3) excess air coefficient in the reburning zone;
4) temperature of reburning zone;
5) the residence time of flue gas in the reburning zone, etc.
※ the overall height of the boiler should be considered to ensure the burnout rate of the fuel in the reburning zone.
In addition, the current international mainstream of low nitrogen combustion technology also include: thick-light combustion, low main combustion area excess air, low NOx burners, etc.,
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