The different advantages of dry and wet shotcrete machine

 The main advantages of wet concrete sprayer:

1, greatly reducing the dust concentration near the machine and outside the nozzle, eliminates the harm to the health of workers.
2, high productivity. Dry concrete spraying machine is generally not more than 5m ³ /h. While the use of wet concrete jet, artificial operation up to 10m ³ /h; the manipulator, up to 20m ³ /h.
3, the rebound degree is low. Dry spray, concrete rebound of up to 15%-50%. The wet sprayed technology. Rebound rate can be reduced to below 10%.
Dry concrete spraying machine is the main advantages of long transmission distance, simple equipment, durable. But because it is the dry concrete mixing nozzle is mixed with water, so the construction dust, springback were larger, stem workers dust spraying of the health, especially the small windows of tunnel project. Dust pollution is more serious.