The rotor-type gunite machine has the advantages of large spraying capacity, long conveying distance, continuous and stable discharge, low feeding height, convenient operation, suitable for mechanized supporting operations, etc. It can be used for dry spraying, semi-wet spraying and wet spraying way is a widely used model. The injection volume of the commonly used single-spray equipment is about 7 to 8 cubic meters per hour, and the conveying and spraying distance is controllable within a range of 100 meters. The rotor-type wet spraying machine model is such as Henan Yugong HTK700 concrete shotcrete machine.