Kiln mouth protective plate of rotary kiln

The utility model relates to the technical field of kilns, in particular to a rotary kiln mouth guard plate which comprises a guard plate body and a reinforcing assembly, and the reinforcing assembly comprises a mounting seat, a rotating plate, a baffle, an abutting plate, a driving mechanism and a connecting plate. When two adjacent kilneye protection plates are installed, one kilneye protection plate is attached to the other kilneye protection plate, so that respective protection plate bodies are attached to each other, then the rotating plate of one kilneye protection plate is rotated to be buckled on the connecting plate of the other kilneye protection plate, and then the driving mechanism of one kilneye protection plate is used for driving the rotating plate of the other kilneye protection plate to rotate. And the abutting plate of one kilneye guard plate is pushed to abut against the connecting plate of the other kilneye guard plate until the two adjacent guard plate bodies are tightly attached, and the