Stopping device used in denitration catalyst calcining equipment

The utility model discloses a material blocking device used in denitration catalyst calcining equipment, which comprises a material blocking mechanism and a material blocking hopper, the material blocking hopper is arranged at the lower end of a feeding hopper, one side of the material blocking hopper is provided with a swing arm, and the material blocking mechanism comprises a driving assembly, a lifting plate, an annular fixing plate and a supporting block. A sliding rod is slidably connected to the inner side of the annular fixing plate, a connecting block is installed at the bottom end of the sliding rod, a first swing rod is connected to the lower portion of the connecting block through a rotating shaft, a rotating rod is arranged at the end, away from the connecting block, of the first swing rod in a penetrating mode, and the two ends of the rotating rod are movably sleeved with second swing rods. The driving assembly, the lifting plate, the annular fixing plate, the sliding rod, the connecting block, t