The mixed materials of the cement plaster spraying machine are fed into the spraying machine hopper from the discharge port of the batching mixer through the vibrating screen, and injected into the straight-through cavity of the rotor body by the shifter, and follow the swirling flow to the discharge port Here, compressed air is introduced from the air chamber to blow the material into the discharge elbow. Here, another pressure wind is introduced by the cyclone, and the material is blown away, accelerated, and rotated in a multi-head wind spiral state , Floats, enters the feeding pipe, reaches the nozzle, and then adds a small amount of supplementary water or liquid accelerator to spray out. In the work, we may encounter various situations, let us introduce the common troubleshooting of cement plaster spraying machine.
1. During the working process, the cement plaster spraying machine suddenly stops automatically. The possible reasons are: A: There is a sudden power failure at the construction site. If the power supply will not be restored within a short period of time, the power supply must be cut off to remove the delivery hose, pump core and all accessories. And clean it. When disassembling the conveying pipe, you must cover the disassembly area with a packaging bag or other items to prevent the sudden release of pressure in the pipe at the moment of disassembly, which may cause danger of mortar injection. B: The motor is overloaded. Check whether the fuse is blown.
2. If the slurry is too dry or the downtime is too long without cleaning, it may cause the cement plaster spraying machine to block and malfunction. Blockage failure is also one of the causes of overload. When this happens, the blocked part must be cleared. Turn off the power first, and do not immediately disassemble the spray gun or the delivery hose, otherwise the huge pressure in the pipe will be released from the place where it was dismantled, and the explosion of mortar may be dangerous. A: Turn the power supply to the reverse direction. B: Press the button to turn on the machine and turn the machine back for about 30 seconds to reduce the pressure in the delivery pipe. C: Remove spray q and clean it. Check if the nozzle is blocked. D: Turn the power switch to forward and turn on. E: If the delivery hose is sent out without material, it means that the tube is blocked. Connect the cleaned sprayer q to continue spraying. F: If the conveying hose is sent out without material, it means that the tube is blocked, and it can be turned on for several times. If there is still no material sent out, remove the conveying pipe for cleaning and dredging, and remove the conveying hose, which can only be carried out after being turned upside down. G: Connect the dredged conveying pipe, then turn the button to forward rotation, and restart the machine.
3. The machine of the cement plaster spraying machine runs normally, but the slurry is very slow or does not. The possible reasons are: A: The pump core has been worn for too long. How to judge whether the pump core is worn? A pressure gauge can be connected between the outlet of the pump core and the delivery hose. If the pressure gauge shows little or no pressure, it can be judged that the pump core is worn. That is to replace the pump core. B: The rotating part in the hopper is evacuated to form a space. The reason is that the slurry is too dry or the dry powder has poor flowability and is not suitable for mechanical operation. In this case, the pump core will produce dry friction due to no material, which will quickly It will cause the pump core to generate high temperature and burn out.
