Ceramsite sand rotary kiln

The utility model discloses a ceramsite sand rotary kiln which comprises a kiln body arranged on one side of a kiln tail working chamber and further comprises a sealing mechanism arranged on the kiln tail working chamber and used for sealing the kiln body, the sealing mechanism comprises a sealing ring fixedly connected to the side wall of the kiln tail working chamber, a conical surface is arranged on the inner wall of the sealing ring, and the conical surface is arranged on the inner wall of the sealing ring. The end, close to the kiln tail working chamber, of the kiln body is fixedly connected with a conical sleeve, the conical sleeve and the conical face are arranged in a matched mode, and the sealing ring is provided with a compensation mechanism used for conducting dynamic compensation on the sealing abrasion face. Through the arrangement of the sealing mechanism, under the dynamic compensation effect of the compensation mechanism, the conical sleeve is pushed to abut against the conical face in time, d