A mixer structure suitable for SNCR denitration of high-temperature flue gas from a pulverized coal boiler, comprising the pulverized coal boiler (1), a flue (2), a mixer (3), an inclined baffle (4), an SNCR spray gun (5), and a mixer baffle (6). The tail part of the pulverized coal boiler (1) is connected to the flue (2), and the mixer (3) for the SNCR denitration of high-temperature flue gas is arranged in the flue (2). A flue gas/reductant mixer (3) is constructed on the basis of a basic mixer body in a suitable region in the flue (2) of the pulverized coal boiler (1) to achieve the ideal SNCR denitration efficiency.
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