Popular PZ-3 dry mix gunite machine

PZ-3 dry mix gunite machine

1. Application

PZ-3 Shotcrete/concrete spraying Machine is mainly used for dry-mix shotcreting and damp-mix shotcreting. It has some obvious advantages such as advanced technology, Perfect structure, stable performance, convenient operation and longevity of service etc. It is widely employed in mining, tunnel, culvert, subway, hydropower engineering, underground excavation engineering etc.

2. Main Technical Data (electric motor)

   Output Capacity                                                3m³ /h

   Max. Horizontal Conveying Distance            200m

   Suitable Mix Ratio(Cement/Sand)                ≤0.4

   Max. Aggregate Size                                         Φ10 mm

   Conveying Hose Inner Diameter                   Φ42 /Φ51 mm

   Conveying Pressure                                        0.2-0.6MPa(29-58PSI)

   Air Consumption                                               5-6m³/min

   Filling Height                                                     1.1m

   Rotor Speed                                                       13.2 RPM

   Motor Type                                                          Y100L2-4 B5

   Power                                                                  3kW

   Overall Dimension(LxWxH)                            1.13×0.54×1.02m

   Net Weight                                                          430kg

3.Machine Structure and Working Theory

PZ-3 Shotcrete Machine mainly includes drive device, rotor assy., air conveying system, spraying system and electric control casing etc. 

 PZ-3 Shotcrete System

1. Vibrating Hopper  2. Agitator Paddle      3. Hopper           4.Hopper Bottom

5. Sealing Plate      6. Rotor Body              7.Rubber Chamber      8. Rotor Disk

9. Face Plate              10. Vortex Stream Implement 11.Gear-box                     12.bottom Frame

13.  Electric Motor   14. Air Pipe System           15.Electric Control Casing     

16. Clamping Device                           17.Vibrator

4.Machine Structure and Working Theory

The structure and working theory of PZ-3  dry mix  gunite machine is shown as figure 1. The premixed materials are filled into vibrating hopper 1, and then passing through vibrating sieve to hopper 3. From there it flows into the through-going chambers of rotor 7 by the action of agitator 2 and moves to the discharge outlet with rotor running, where it is blown to Vortex Stream Implement 10 by compressed air leaded by air pipe 14. Here it is blown by scattering, accelerating, whirling, and floating vortex stream and through conveying hose to the nozzle, where a little adjustable amount water (for damp-mix shotcreting) is added.

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