The safe operation guidelines that the sprayer should keep in mind when using wet mix shotcrete machine are as follows:
1. Generally, the operation of the wet mix shotcrete machine requires at least two people. During the construction process, the two people should cooperate closely and deal with the problem in time. The sprayer should control the water-cement ratio so that the sprayed material is not white, flowing, and the surface is shiny. should.
2. When spraying, it is necessary to master the spraying angle and spraying distance, and the nozzle should be vertical to the rock surface. The spraying sequence is generally bottom-up, back-to-front, fill in the pits and level, and then follow the normal operation to do a one-time spray to the end.
3. Before starting the wet mix shotcrete machine, take out the large gangue and debris from the machine to prevent pipe blockage. After the feeding is stopped, wait until the remaining material in the material cavity and the material pipe is completely blown before stopping the machine, and clean the inside and outside of the machine.
4. When wet mix shotcrete machine blows air, the nozzle must be fixed to prevent the nozzle from swinging and hurting people. When dealing with a blocked pipe, it is not allowed to bring the wind or increase the air pressure. It is necessary to cut off the power, stop the wind, open the air release valve and hit the blocked pipe, and then close the air release valve to supply air and power.
5. When shotcreting is in a flat lane, the mine cart should be fixed with a temporary stopper, and mixing materials in the mine cart is strictly prohibited.
