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Author: Admin | 2025-04-28
See that the ground rock will become finer the closer that you get to the centre of the cyclone.It is the APEX at the bottom of the cyclone that is the most responsible for creating the spin required for the CENTRIFUGAL SIZING of the slurry.Hydrocyclone Working PrincipleThe centre of this spiral is called the VORTEX. The purpose of the apex is to cause internal pressure for the cyclone and to create a vortex that extends all of the way to the top of the cyclone.In all hydrocyclones there are two outlets, one for the coarse material, this is the APEX, and the other for the fine material, which is the VORTEX FINDER. The purpose of the Vortex finder is to separate the fine material from the coarse as it spirals around the vortex. The WIDTH of the Vortex finder will determine how far into the coarser material the separation point will be.https://www.911metallurgist.com/equipment/polyurethane-hydrocyclones/The Volume of slurry that is being fed into the cyclone must not exceed the capacity of these two outlets that allow it to escape. The size of the apex and the vortex finder is crucial. If the apex of the cyclone, like the size of the drain in your sink, is made smaller it won’t allow as much slurry out of the underflow of the cyclone. This will cause the vortex to be smaller the internal volume of the slurry inside the cyclone will be greater and the amount of material that the vortex finder separates to become part of the overflow will be increased.As it is the DISTANCE across the vortex finder that determines where in the vortex the ore flow is separated at, the SIZE OE THE APEX will determine the degree of classification that the ore will be subjected to.The size of the apex in relationship with the volume of slurry that is being fed to the cyclone, will create and maintain the PRESSURE NECESSARY to force the fine material out of the cyclone. The greater the pressure the greater the volume of overflow. To increase the overflow requires either a higher volume fed to the cyclone or a smaller underflow discharge opening. As the pressure in the cyclone climbs the amount of coarser material in the overflow increases. The reason that this pressure is generated is because the volume of the feed is greater than apex discharge capacity. The pressure is generated as the volume of slurry is built up over the apex.These three factors then become your operating Variables when dealing with cyclones, APEX SIZE, the SIZE of the VORTEX FINDER, and the VOLUME of the feed. The CYCLONE PRESSURE becomes a control indicator for the adjustment of the apex size and the
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