SELECTIVE CATALYTIC REDUCTION REACTOR DEVICE

A selective catalytic reduction reactor device, a longitudinal cross section of said device being in the shape of a right trapezoid, the top of said device being an inclined surface, and an internal vertical flue of said device being sequentially provided, from top to bottom, an inclined top reactor inlet (2), a rectifying device (4), a catalyst reactor (5) and a reactor outlet (6), the inclined top reactor inlet (2) being further connected to a horizontal inlet flue (1); the top surface of the inclined top reactor inlet (2) is an inclined surface, and the starting position of the inclination is inside the vertical flue and inclined downward in a direction away from the horizontal inlet flue (1); there is a distance, in the vertical direction, between the tail end of the rectifying device (4) and the tail end of the top surface of the inclined top reactor inlet (2), and as for different regions of the rectifying device (4), the distances between rectifying plates are different. L'invention concerne un disposi