How to use dry spray gun? Dry shotcreting machine is used for the equipment of flooding concrete. It is mainly used for tunnels, culverts, subways, hydropower projects, underground constructions and shotcrete construction operations in coal mine high marsh mine roadway. Henan Hao Li sprayer manufacturers introduced the dry spraying machine operation flow in detail.
1. Firstly, the stirred material is fed into the dry type spraying machine hopper through the shaker screen through the discharge port (or artificial mixing and feeding) of the batch mixer, and is toggled into the direct feed cavity of the rotor by the dial feeder. With the rotation of the rotor to the discharge port, where the compressed air is introduced from the air chamber, the material is blown into the discharge elbow, and the cyclone is introduced into the other air, showing a multi-wind spiral condition to blow the material out. Accelerate, and make it rotate, float, enter the feeding tube, reach the nozzle and add a small amount of additional moisture (while spray) to spray out.
2. After the preparation is completed, the mixer can be added to the machine. The machine should first open the main valve. The valve of the upwind pipe should be opened 1/3 turn, and then adjust the downwind pipe (to the cyclone pressure). About 0.05-0.1Mpa no-load air pressure (depending on the delivery distance).
3. The sprayer then opens the nozzle water valve to the surface of the wet rock mass. At this point, the operator can start the machine and begin spraying 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 adjusting the wind pressure to the cyclone, open the upper air valve again until there is no more The material will be released.
4, stop spraying. Shut down first, blow out the surplus material in the pipeline. 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. The mixing material can be stored in the hopper when the spraying operation is interrupted for a short time; when the time is long or the shotcrete operation is finished, the feeding is stopped first, and the machine continues to operate until the hopper and the scrap in the rotor run out, and at the same time, a little wet is added. The sandstone cleans the hopper and the material in the rotor cavity.
1. Firstly, the stirred material is fed into the dry type spraying machine hopper through the shaker screen through the discharge port (or artificial mixing and feeding) of the batch mixer, and is toggled into the direct feed cavity of the rotor by the dial feeder. With the rotation of the rotor to the discharge port, where the compressed air is introduced from the air chamber, the material is blown into the discharge elbow, and the cyclone is introduced into the other air, showing a multi-wind spiral condition to blow the material out. Accelerate, and make it rotate, float, enter the feeding tube, reach the nozzle and add a small amount of additional moisture (while spray) to spray out.
2. After the preparation is completed, the mixer can be added to the machine. The machine should first open the main valve. The valve of the upwind pipe should be opened 1/3 turn, and then adjust the downwind pipe (to the cyclone pressure). About 0.05-0.1Mpa no-load air pressure (depending on the delivery distance).
3. The sprayer then opens the nozzle water valve to the surface of the wet rock mass. At this point, the operator can start the machine and begin spraying 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 adjusting the wind pressure to the cyclone, open the upper air valve again until there is no more The material will be released.
4, stop spraying. Shut down first, blow out the surplus material in the pipeline. 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. The mixing material can be stored in the hopper when the spraying operation is interrupted for a short time; when the time is long or the shotcrete operation is finished, the feeding is stopped first, and the machine continues to operate until the hopper and the scrap in the rotor run out, and at the same time, a little wet is added. The sandstone cleans the hopper and the material in the rotor cavity.
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