Limestone powder admixture mixing plant

The utility model discloses a limestone powder admixture mixing plant which comprises a hollow mixing barrel with an opening at the upper end, a mixing cover arranged at the upper end of the mixing barrel, and a mixing device connected with the mixing cover, a plurality of mounting parts are linearly arranged on the inner side wall of the stirring barrel, and metal chains are arranged among the mounting parts and are in a loose state; the mounting pieces and the metal chains which are positioned on the same straight line form a plurality of chain groups, and the plurality of chain groups are circumferentially arranged on the inner side wall of the stirring barrel; the rotating seat is rotationally arranged on the upper end face of the mounting base, and a rotating seat driving device is arranged on the upper end face of the mounting base. Materials adhered to the inner side wall of the stirring barrel are cleaned through the metal chain, the materials are prevented from being adhered to the inner side wall of