... high marsh coal mine tunnel shotcrete construction operations. Dry-Mix Gunite Machine for Coal Mine with features: 1,Advantages ... effective shotcrete machine,which is mainly used for dry-mix, damp-mix shotcreting and steel fiber reinforced shotcreting. 2,Non-adhesion ... prolong consumption parts life., 4,Thin flow conveying method with vortex flow, so the spraying flow is even, continuous and steady, to ...