In domestic infrastructure construction, wet shotcrete machine are mainly used in roadways, culverts, tunnels, building foundation pit support, river slope protection and other places, which can effectively reduce dust, reduce rebound and save materials. In addition, using wet shotcrete machine for anchor shotcrete support, the quality of concrete support is much better than that of dry shotcrete machine, and the firmness is better. However, there are several key points in the construction operation of the wet shotcrete machine that need our attention. The editor of China Coal today will take you to understand the key points that the wet shotcrete machine needs to master in the construction operation:
1. First, check the sensitive and reliable performance of the air divider valve of the wet shotcrete machine;
2. Check whether the power cord of the wet shotcrete machine is damaged or whether the wiring is firm;
3. Adjust the upper and lower pressure limit values of the pressure gauge according to the conveying distance of wet shotcrete machine;
4. Make sure that you need to connect wind, electricity, water, etc. before starting the wet shotcrete machine, and then open the air inlet valve to gradually reach the rated pressure, and start the motor without load. If everything is normal, you can start working;
5. It is necessary to suspend the working wet shotcrete machine, and operate according to the length of time. If it takes more than one hour, it needs to spray out the material in the warehouse and the conveying pipe, stop feeding at the same time, and then stop the motor , Stop sending compressed air, etc.
