郑州瑞申PZ-3D混凝土喷射机是利用压缩空气，将按一定配比的混凝土拌和料或类似有颗粒松散物料通过管道输送并在端口处控制加水混合后高速喷射到受喷面上凝结硬化，从而形成一定强度的材料防护层。广泛应用于建筑、铁路、公路、水电、绿化、矿山、防火防潮防渗材料喷涂等工程的基坑、边坡、隧道、桥梁、矿井、高炉、房屋的防护材料喷射防护。
  Shotcrete process is to use compressed air to convey the pre-dampened mix through delivery hose to the nozzle to project the material onto the sprayed surface under high velocity, and then to form concrete support layer after the projected material coagulates and hardens. With simple technology, special effect, economy cost, flexibility and high construction efficiency, shotcrete technology has widely been applying in construction, railway and super highway engineering, underground engineering, tunneling, mining operations, hydropower projects and slope stabilization, etc. and showing prosperous future.
技术参数Technology Description：
型号Type：                                    PZ-3D                        
生产能力Output：                           3 m3/h
最大输送距离Max.conv.dist：           200 m
水灰比Water cement ratio：            ≤0.4
最大骨料粒径Max.Aggregate.size：   12 mm
输料管内径Hose inner size：            42 mm
工作压力Operating air pressure:      0.2-0.6 MPa
耗风量Air consumption:                  6 m3/min
功率Motor power:                          6.9 kW（柴油机）
外形尺寸Dimension:                       2130×540×1020  mm
整机重量Weight：                           550 kg