Commonly used cyclone introduction and performance factors affecting

First, the commonly used cyclone has the following types: aqueous media cyclone, heavy media cyclone, the

Working principle: the cyclone relies on centrifugal sedimentation for separation. Will need to share the two-phase mixture with a certain pressure from the upper part of the cyclone cylinder end of the inlet into the cyclone, so that the formation of strong rotary movement in the cyclone. Due to the difference in density between the light phase and the heavy phase or the difference in particle size between coarse and fine particles, the centrifugal force and fluid force are subjected to different sizes, and most of the light phase (or fine-grained level) is discharged through the overflow port of the cyclone, while the heavy phase (or coarse-grained level) is discharged from the underflow port.

Second, water-mediated cyclone: water-mediated cyclone is also known as autogenous media cyclone. It is water and the fine particles in the feed to form the media sorting, without the need for additional high-density media, due to the actual sorting density and mass density differences, so the role of particle size classification in the water-mediated cyclone is more obvious.

Typical water-mediated cyclone as shown in the figure. It is mainly characterized by a shorter cone section, a larger cone angle and a longer overflow pipe single cone has 90 ° and 75 'two, but also with three different cone angles (compound cone water-mediated cyclone). This design is conducive to reducing the particle size classification effect, improve the classification according to density. The closer the overflow pipe from the cone section, the lower the density of large particles can not reach the end of its settlement speed, the less likely to be thrown to the cylinder wall by centrifugal force, and is carried by the updraft into the overflow pipe discharged. Water-mediated cyclone cone has a large cone angle, the cone angle increases will produce an upward thrust to make the heavy density particles produced by the suspended rotating bed, the density of small particles can not penetrate the bed into the underflow, discharged through the overflow pipe, the heavy media is discharged through the bottom of the mouth.

Third, heavy media cyclone

Heavy media cyclone is in the centrifugal force field for sorting equipment, the basic principle is to use Archimedes principle in the centrifugal force field. Because the centrifugal force is dozens or even hundreds of times greater than gravity, so for fine particles and small density differences in the material, in the centrifugal force field than in the gravity field is more effective. Heavy media cyclone is a kind of equipment with simple structure and no moving parts. According to the structure and shape of the body is divided into cone-type and cylinder-type two products of heavy media cyclone; double cylinder tandem type and cylinder and cone tandem three products of heavy media cyclone. The structure of the cyclone is divided into overall casting and wear-resistant lining two forms. Overall casting materials commonly used wear-resistant alloys and polyurethane, etc., wear-resistant alloy materials commonly used Cr15M03, wear-resistant composite materials, cemented carbide, etc.; wear-resistant lining materials are wear-resistant steel jade lining, silicon carbide and polyurethane, etc..