Water diversion culvert hoisting type spraying machine Jingheng double hopper spraying unit model

Description :

　　Water diversion culvert hoisting type spraying machine Jingheng double hopper spraying unit model

　　The lifting and spraying machine improves work efficiency, without stopping the machine, and can work continuously. The hopper automatically loads materials, saving manual labor. The size of the machine can be selected according to the construction environment to facilitate construction and increase workload. In terms of machine operation, it is also very user-friendly. The machine can start working as soon as it arrives, and everyone can operate it.

　　Mixed spraying: also known as cement coated sand shell spraying method, it is to wet a part of the sand with secondary water, and then add all the cement for forced mixing and shell making; Then add a second batch of water and water reducing agent to mix into SCE mortar; Forcefully mix the other part of sand, stone, and quick setting agent evenly. Then use a mortar pump and a dry jet machine to press and mix the mixture in the mixing pipe before spraying it out. Mixed spraying is the combination of staged feeding mixing process and spraying process, and its key is the technology of cement coated sand (or sand, stone) shell making. The main mechanical equipment used in the mixed spraying process is basically the same as that used in the dry spraying process, but the quality of concrete is better than that of dry spraying concrete, and the dust and rebound rate are significantly reduced. But with a large number of machines used and complex processes, mechanical cleaning and troubleshooting are very troublesome. Therefore, the mixed spraying process is generally only used in large quantities of sprayed concrete and large section tunnel projects. The suspended type spraying machine for water diversion culverts is the Jingheng double hopper spraying unit model.

　　Spray work

　　Before starting the spraying work, old belts should be laid on the spraying site to collect rebound materials, with a rebound rate not exceeding 10%.

　　① Boil water, adjust the water volume, and maintain a wind pressure of no less than 0.4 MPa. The water pressure should be about 0.1 MPa higher than the wind pressure. The amount of water added should be controlled based on the experience of the shooter, and the water cement ratio should be 0.4.

　　② The sprayer operates the nozzle to flush the rock surface from top to bottom.

　　③ Power transmission, start the spraying machine and mixing machine, and load the material for spraying.

　　④ Adjust the air flow rate again according to the feeding situation to ensure that the sprayed surface has no dry spots, no flow, strong adhesion, and less rebound material.

　　⑤ Spray in sections from bottom to top, starting with the wall and then the arch.

　　⑥ When spraying, the nozzle should be as perpendicular as possible to the sprayed surface, and the angle should not be less than 70 degrees.

　　⑦ When spraying, the nozzle should move in a spiral shape, uniformly and slowly moving with a diameter of 200-300mm and a circle pressing against a semicircle.

　　⑧ The thickness of the sprayed concrete should be 50-70mm, and it should be re sprayed in a timely manner with an interval of no more than 2 hours. Otherwise, use high-pressure water to rinse the sprayed surface again.

　　⑨ Two people should be assigned, one to hold the nozzle for spraying, and one to assist with lighting and be responsible for communication, observing the safety of the roof and the quality of spraying. The model of the Jingheng double hopper spraying unit of the water diversion culvert lifting type spraying machine should be selected.

AfterSalesService :

• Lifting type spraying machine for water diversion culvert