Desulfurized gypsum crushing device

The utility model discloses a desulfurization gypsum crushing device, and relates to the technical field of desulfurization gypsum processing. The crushing device comprises a crushing box, a driving motor is mounted on the side face of the crushing box, the output end of the driving motor is fixedly connected with a threaded rod, the screwing directions of threads at the two ends of the threaded rod are opposite, a threaded sleeve is connected to the outer portion of the threaded rod in a threaded mode, and a side rod is fixedly connected to the side face of the threaded sleeve, extends into the crushing box and is in sliding connection with the crushing box. The side face of the side rod is fixedly connected with a push plate, and the surface of the push plate is fixedly connected with a conical rod. According to the flue gas desulfurization gypsum crushing device, the driving motor, the stepping motor, the threaded rod, the conical rod, the blade and the inclined plate are matched for use, the push plate an