Shotcrete anchor spray safety operation specification
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1. First of all, check whether the lubricating oil in the sprayer reducer and accelerant pump is sufficient and the oil level should reach the centerline of the oil standard.
2. Check whether the circuit of the electronic control system is firmly connected, whether the body ground is reliable, and whether the power supply is plugged into the power supply.
3. Connect the two ends of the blasting pipe to the discharge port and the spray head respectively, and connect the quick-setting coagulant output pipe to the accelerator outlet and the spray head on the machine body respectively.
4. Close all the valves in the air duct system and connect the quick connector on the main air inlet duct to the wind source.
5. Click the main motor button and observe whether the direction of rotation of the reducer is the same as the arrow direction. Click the vibration button to check if the vibrator motor is normal.
6. Open the valve on the accelerator road and start the accelerant pump. Observe whether there are any sprayed gas at the nozzle to determine whether the pipeline is unblocked. The maximum flow rate of the accelerator pump is 240L/h. The speed is adjusted according to the construction requirements. Condensate flow, but adjustments should be completed and the adjustment handwheel should be locked.
7. After all preparations are completed and confirmed, you can send the air, open the main air circuit and the auxiliary air circuit valve in turn, close the electronic control system switch, and start the main motor.
8. When jetting, the direction of the jet should be perpendicular to the jet surface, first on the bottom, then on the first wall and the rear arch according to R=300mm spiral trajectory, one circle pressing half circle to move; one shot thickness, wall 50-100mm. Arches 50-70mm; when concrete is mixed with accelerator, it is usually separated by 10-15min. If the interval is more than 2h, spray water to wet the concrete surface before spraying.
9. Before stopping the machine, feed should be stopped first. When there is no material stored in the hopper and no material is ejected from the nozzle, the vibration motor is turned off; the clean water can be injected into the hopper until the material in the hopper, rotor body and blasting pipe is stored. Rinse thoroughly to shut off the main motor; insert the quick-adjusting agent pipette into the clean water, and use the pump to clean the quick-setting accelerant pump and the pipeline; after completion, close the accelerator pump, cut off the wind source, and power.
10. Rinse the surface of the spray gun and wipe it dry with a dry cloth.