Hydrocyclone working principle
Hydrocyclone is a non-motor separation equipment consisting of two main parts: the upper cylinder and the lower cone, and its separation principle is centrifugal sedimentation. When the slurry to be separated (non-homogeneous solid-liquid mixture) with a certain pressure from the periphery of the cyclone into the cyclone is forced to make rotary motion. Because of its subject to centrifugal force, centripetal buoyancy, fluid traction and other different sizes, the solid coarse particles in the slurry to overcome the hydraulic resistance to the wall movement, and under the joint effect of their own gravity, along the wall spiral downward movement, fine and small particles and most of the water is due to the centrifugal force is small, and not close to the wall that is, along with the slurry to do the rotary motion. In the subsequent feed drive, particle size from the centre to the wall is getting bigger and bigger, forming a layered arrangement. With the slurry from the column part of the cyclone to the cone part of the flow section is getting smaller and smaller, in the outer layer of the slurry contraction under the pressure, containing a large number of small particles of the inner layer of the slurry had to change direction, turned upward movement, the formation of the inner cyclone, from the overflow pipe discharge, become the overflow, and coarse particles continue to spiral downward along the wall of the device, the formation of the outer cyclone, and ultimately discharged from the bottom of the flow mouth, become the sand sinking. Thus the purpose of separation and classification is achieved.