Ammonia gas storage device for SCR (Selective Catalytic Reduction) flue gas denitration

The utility model belongs to the technical field of ammonia gas storage, and particularly discloses an ammonia gas storage device for SCR (Selective Catalytic Reduction) flue gas denitration, which comprises a bearing plate, a movable frame is arranged below the bearing plate, and a plurality of fixing mechanisms are arranged at the upper end of the bearing plate in a linear array manner; the fixing mechanism comprises guide grooves formed in the two sides of the upper end of the bearing plate and a concave plate fixedly connected to the upper end of the bearing plate, the inner walls of the two guide grooves are slidably connected with guide blocks, the upper ends of the two guide blocks are jointly and fixedly connected with a concave frame, and the lower end face of the concave frame is arranged on the upper end face of the bearing plate in an attached mode. Springs are fixedly connected between the side walls of the two guide blocks and the inner walls of the two guide grooves, limiting mechanisms are arr