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1—Cylinder shell; 2—cone shell; 3—feeding pipe mouth; 4—sanding discharge nozzle; 5—overflow pipe; 6—overflow discharge nozzle hydrocyclones are mainly used in beneficiation: 1 as a grading device in the grinding circuit, especially as a grading device for fine grinding. 2 Desliming and concentrating the slurry. The 3-heavy medium cyclone is a common heavy medium sorting device.
What is the structure and working principle of the hydrocyclone?
The structure of the hydrocyclone is shown in Figure 20. The lower part is a conical shell 2, the upper part is connected with a cylindrical shell l, the upper end of the cylindrical shell is sealed, and a bottom plate is arranged in the middle, and a short tube overflow pipe 5 is inserted in the center of the bottom plate, and a cylindrical shell surface is arranged in the lower part of the bottom plate. The tangential direction is connected to the supply pipe 3, and an overflow discharge pipe 6 is connected on the bottom plate along the tangential direction of the casing, and the lowermost end of the cone has a replaceable grit nozzle 4. Hydrocyclone wear resistant cast iron manufacturing multi as a housing wall to reduce the wear rate, is also commonly used diabase, wear-resistant materials such as rubber lined. The specifications of the hydrocyclone are expressed in terms of the diameter of the cylinder. The cone angle of the cone can vary, typically a minimum of 10° and a maximum of 45°. The working principle of the hydrocyclone: ​​the slurry enters the shell through the feeding tube along the tangential direction of the cylinder under the action of pressure, and makes the rotary motion in the shell. The coarse particles (or the dense particles) in the slurry are subject to large Centrifugal force enters the periphery of the swirling flow, and simultaneously flows downward with the slurry flow, and finally is discharged into the grit by the bottom grit nozzle; the fine particles are subjected to less centrifugal force, are in the center of the swirling flow and move with the liquid flow, and finally overflow. The tube discharge becomes an overflow.