The invention discloses a low-carbon and low-
NOx sintering method based on reasonable distribution of fuel. According to the low-carbon and low-
NOx sintering method based on reasonable distribution offuel, a lower fuel layer is mainly fed with new fuel which is high in burning speed, relatively low in heat value and low in
nitrogen content, an upper fuel layer is fed with
fossil fuel which is lowin burning speed and high in heat value,
flue gas with high in CO content in an intermediate air bellow of a
sintering machine is circulated to a sintered material surface at the same time, and
latent heat of the
flue gas is fully utilized for further supplementing heat to the upper fuel layer. According to the low-carbon and low-
NOx sintering method based on reasonable distribution of fuel, thecharacteristics that the sintering speed changes from low to high from the upper fuel layer to the lower fuel layer, and heat storage changes from low to high, the difference between the burning speedof the new fuel and the
fossil fuel, and the difference between the heat value of the new fuel and the
fossil fuel are effectively coupled, the CO
latent heat in the
fuel gas is efficiently utilized,and at the same time of increasing sintering yield and improving quality indexes,
solid fuel consumption of each
ton of sinter is reduced by 2kgce to 4 kgce, CO emission is reduced by 30% to 50%, NOxemission is reduced by 40% to 60%, and low-carbon and low-NOx sintering is implemented.