Structure and working principle of dust free telescopic chute<br>Telescopic chute is a kind of efficient dust-proof conveying equipment used to unload bulk materials of particles or powders to trucks, tankers and storage yards. The telescopic chute is divided into two layers, the inner layer of its discharge port is a cone, which can make the material pass through; the outer layer is a double telescopic tube, which is used for dust collection. There is a steel cone at the lower end of the telescopic discharge port, which has good sealing performance. The cone is used to connect the tank car. Customers can choose the dust filtration system, including 6-8 filter elements, with a total surface area of 10m2, and equipped with a 2.2kW (3.0 HP) fan. Double layer casing structure is adopted, which is composed of chute and dust cover. The material passes through the chute, and the dust cover coat is on the chute, and a dust absorption cavity is formed between the two. The bottom of the dust-free telescopic chute will be equipped with a material level sensor and a dust-proof group cover. The level sensor will be set on the outside or inside, and the dust skirt will be overlapped in blocks. In the loading process, after the material level sensor contacts the material, the dust-free telescopic chute will be lifted in time to keep a certain distance between the material top and the accumulated material. The dust-proof skirt cover can cover the material pile to ensure the dust absorption effect and prevent dust overflow. The chute will be made of steel plate with polyurethane wear-resistant liner, and the dust cover will be made of antistatic soft chemical fiber material with high strength. A supporting framework will be set in the dust cover, which can not only stretch up and down, but also ensure smooth air flow. The improved telescopic chute can rise and fall freely without blocking; at least three lifting points will be set at the bottom of the telescopic chute to ensure that the lifting mechanism can drive the telescopic chute to rise and fall smoothly.<br>
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