Buckle type upper seal for cement kiln denitration catalyst

The utility model provides a buckle type upper seal for a cement kiln denitration catalyst, and belongs to the technical field of sealing devices. The denitration catalyst module sealing device comprises an upper sealing body and a lower sealing body, wherein the upper sealing body is connected in a gap between two adjacent denitration catalyst modules in a sealing manner; the denitration catalyst upper edge convex plates are respectively arranged on the upper edges of the side walls of the two adjacent denitration catalyst modules; the upper sealing body sequentially comprises a top cover and supporting legs from top to bottom. Protruding parts protruding leftwards and rightwards are arranged at the joints of the top cover and the supporting legs correspondingly and used for covering the top edges of the two adjacent denitration catalyst modules. Extending parts extending towards the left side and the right side are arranged at the lower ends of the supporting legs respectively, and the extending parts are c