Hydrocyclones are generally used for pre-concentration of tailings, which greatly reduces the water content of gold tailings, improves the dehydration efficiency of subsequent operations, and eases the operating burden of concentration and filtration equipment. It has the advantages of high efficiency, a simple process and a small footprint.

Work Principle
It usually consists of a cylindrical container, an inlet pipe, a swirl chamber, a discharge port, etc. When working, the mixture enters the cyclone chamber through the inlet pipe. The inlet pipe is designed so that the fluid enters the swirl chamber in a helical shape, forming a vortex in the swirl chamber. After the vortex is formed, the solid particles are pushed to the outer wall of the cyclone chamber, forming a solid deposition layer due to the centrifugal force. The liquid forms a vortex cavity in the center of the vortex and is discharged from the discharge port. Due to the action of centrifugal force, solid particles are forced to deposit on the outer wall of the cyclone chamber, forming a solid deposition layer. The thicker the solid deposition layer, the better the solid-liquid separation effect. The solid deposition layer must be dehydrated when it reaches a certain thickness. Dehydration is carried out through a discharge port at the bottom of the cyclone chamber. After the liquid flows out of the vortex cavity, it is discharged through the discharge port, while the solid particles remain on the outer wall of the vortex chamber.