Detachable urea mixing structure for national sixth diesel engine

The invention discloses a detachable urea mixing structure for a national sixth diesel engine. The detachable urea mixing structure comprises an air inlet flange, a mixer barrel, an air inlet partition plate, a stainless steel winding net assembly, an air outlet partition plate and an air outlet flange. The air inlet flange and the air outlet flange are mounted at the two ends of the mixer barrel; the air inlet partition plate and the air outlet partition plate are of circular sheet structures with the middles protruding outwards, and the air inlet partition plate and the air outlet partition plate are installed in the middle of the mixer barrel in the radial direction to form a mixing cavity; the stainless steel winding net assembly is mounted in the middle of the mixing cavity and divides the mixing cavity into two parts; a nozzle seat is mounted on the outer side of the mixer barrel at the mixing cavity; and a temperature sensor base and a differential pressure gas taking base are mounted on the mixer barr