The hydrocyclone is a kind of fractionation and separation equipment with a wide range of uses by means of centrifugal force. Because of its fine grading particle size, small footprint, and simple structure, it is often used in the mineral processing industry for grading coarse and fine minerals, as well as dehydration and concentration of ore pulp. However, when using hydrocyclones, the equipment is prone to wear and tear problems. Among them, the wear and tear of the grit chamber and the mine feeding port are the most serious. Below, we will specifically analyze the causes of hydrocyclone wear and share some common solutions to wear problems.
1. The impact and frictional sliding of ore particles on the wall of the hydrocyclone causes wall wear
During the operation of the hydrocyclone, due to the particle size difference between the coarse particles and the fine particles in the slurry, the mineral particles enter the shell of the hydrocyclone through the feed pipe under the action of pressure, and under the action of centrifugal force Coarse ore particles move downward with the slurry and are finally discharged from the grit chamber, while fine ore particles flow upward with the slurry and are discharged from the overflow pipe. During the operation, the mineral particles deviate from the flow direction of the flow field under the action of centrifugal force and perform a strong rotational movement. Under the violent scouring of the treated pulp, the wall of the hydrocyclone is impacted and rubbed by the mineral particles, and serious damage occurs. wear problem.
Solution:
The abrasion and wear resistance of hydrocyclones have always received great attention. In order to solve the problem of serious wear of hydrocyclones, the use of wear-resistant materials is one of the main ways to solve the problem of hydrocyclone wear. At present, the commonly used wear-resistant materials mainly include: rubber, alloy cast iron, cast stone, etc. Aiming at the problem of severe wall wear of the hydrocyclone, the common method is to line the interior of the hydrocyclone with rubber, cast iron or coated with wear-resistant materials, or the entire hydrocyclone is made of wear-resistant rubber, so as to increase the hydrocyclone Abrasion resistance of flow vessel wall. When selecting and purchasing hydrocyclones, attention should be paid to the wear resistance of the equipment.
