SCR (Selective Catalytic Reduction) denitration device

The utility model discloses an SCR (Selective Catalytic Reduction) denitration device, which is characterized by comprising a support structure, a plurality of catalyst support beams, a plurality of catalyst support beams and a plurality of catalyst support beams, the reactor consists of a plurality of sub-reactors, one sub-reactor is fixed on each layer of catalyst supporting beam, and the catalyst supporting beam is connected with the sub-reactor below the catalyst supporting beam through an expansion joint. According to the utility model, the reactor is divided into a plurality of sub-reactors and the sub-reactors are supported on the supporting structure in a layered manner, so that the load of a single-layer beam of the supporting beam steel structure is reduced, and the safety is high; the expansion joints are arranged between the catalyst supporting beams and the sub-reactors below the catalyst supporting beams, so that the expansion displacement of each layer of the reactor is compensated, the catalys