How to operate dry sprayer? What is a dry sprayer? Dry spray gun is a device used for flooding concrete. It is mainly used for tunnels, culverts, subways, hydropower projects, underground constructions and shotcrete construction operations in coal mines and high-marine mine roadway. Henan Hao Li sprayer manufacturers introduce dry spray gun operation steps.
1. The stirred material is fed from the batching mixer discharge port (or artificial mixing and feeding) to the spraying machine hopper through the vibrating screen, and is toggled into the direct feed cavity of the rotor by the dial feeder, rotating with the rotor. Flows to the discharge port, where compressed air is blown from the air chamber 13 and the material is blown into the discharge elbow, and another cyclone is used to introduce the other air pressure. The multi-head spiral spirally blows and accelerates the material. Let it rotate, float, enter the feeding pipe, reach the nozzle and add a small amount of additional moisture (in the case of a tidal spray).
2, after the preparation is completed, you can add the mixing material to the machine, you should first open the total valve of the spraying machine, the valve of the upwind pipe is opened 1/3 turn, and then adjust the downwind pipe (to the pressure of the cyclone ) to about 0.05-0.1Mpa no-load air pressure (depending on the delivery distance).
3, open the nozzle water valve, to the wet rock surface. At this time, the operator can start the spraying machine and start spraying the concrete. Now the working pressure is about 0.2-0.4Mpa. According to the water-cement ratio of the mixing material and the length of the conveying distance, after adjustment to determine the wind pressure leading to the cyclone, open the upper-window valve again, until the spraying machine has no more More material is released.
4, stop spraying operations. Shut off the excess material in the transfer line. When the pipeline is clean and no material is sprayed from the sprinkler, close the water valve at the sprinkler. Finally close the main duct valve.
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