Centrifugal dewatering machine is mainly composed of transfer and screw conveyor with hollow shaft. After the sludge is sent into the drum by the hollow shaft, it is immediately thrown into the hub cavity under the action of centrifugal force generated by high-speed rotation. The specific gravity of the sludge particles is large, so the centrifugal force generated is also large, and they are thrown and attached to the inner wall of the rotating hub to form a solid layer; the water density is small, and the centrifugal force is also small, and only a liquid layer is generated inside the solid layer. The sludge in the solid layer is transported to the conical end of the transfer under the slow push of the screw conveyor, and is continuously discharged through the outlet around the transfer. The most critical component of the solar water heater brand centrifugal dehydrator is the rotating hub. The larger the diameter of the rotating hub, the greater the dehydration processing capacity, but the manufacturing and operating costs are quite high, which is very uneconomical. The longer the transfer length, the higher the solid content of the sludge, but the performance-price ratio will decrease if the transfer is too long. In the process of use, the rotational speed of the transfer is an important control parameter. Controlling the rotational speed of the rotor so that it can not only obtain a higher solid content rate but also reduce energy consumption is the key to the operation of the centrifugal dehydrator. At present, low-speed centrifugal dehydrators are mostly used. In the selection of centrifugal dehydrator, because the outer edge of the runner or the screw is very easy to wear, there are special requirements for its material. The outer edge of the spiral of the new centrifugal dehydrator is mostly made into assembly blocks for easy replacement. The material of the assembly block is generally tungsten carbide, which is expensive.

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