What are the precautions for wet shotcrete machine spraying concrete? Wet shotcrete machine is mainly used in roadways, culverts, tunnels, building foundation pit support, slope protection and other projects, which can effectively reduce dust, reduce rebound, and save materials. When using the wet shotcrete machine for anchor shotcrete support, the concrete support quality is much better than the dry shotcrete machine, and the firmness is better.
1. First, check the sensitive and reliable performance of the wet shotcrete machine air divider valve.
2. Check whether the power line of the wet shotcrete machine is damaged or the wiring is firm.
3. Adjust the upper and lower pressure limit values of the pressure gauge according to the conveying distance of the wet sprayed concrete.
4. Before starting the wet shotcrete machine, make sure that the wind, electricity, water, etc. are turned on, then open the intake valve to gradually reach the rated pressure, and start the motor at no load. If everything is normal, you can start spraying concrete.
5. Pause the wet shotcrete machine as needed. If it takes more than an hour, the material in the warehouse and the conveying pipe must be sprayed out. At the same time, stop feeding, then stop the motor and stop compressed air.
