With anchor and shotcrete machine support is widely used, the shotcrete machine machine maintenance work is is particularly important, let made a detailed introduction about how to apply spraying machine spray anchor support protecting dustproof technology. shotcrete machine machine shotcrete machine technology widely used, the dust concentration increased. PZ series shotcrete machine machine spray concrete dust concentrations are generally in about 150 ‘Yang, the bolting and shotcreting support of shotcrete machine machine in coal mine have been practiced in our country for 30 years after experimental study. In view of its advanced technology, economic reasonable and adaptable dust reduced to 20mg plus’ around and achieved better effect. And so on, it has been widely used in the well lane engineering, and has become the main form of the tide and low wind pressure and the close distance is the main form of the roadway support.