Hydro-cyclones are commonly used for separation, dewatering and sizing of -4 mesh (5mm) particles. They can be used in industries such as sand, aggregates, silica sand, coal washeries, industrial minerals, hard rock mining and more. The use of Hydro-cyclones in washing and stockpiling is common in the construction aggregate industry. Desliming prior to Classification Tanks and Screw Washers can significantly improve the performance of these devices in high fines situations. For mineral applications such as in hard rock and precious metals processing, Cyclones are the most common equipment to control what size of materials exit the comminution (ball milling) circuit. In these applications, it is the fine fraction in the overflow that is the product. Different ores have different liberation sizes, so Hydro-cyclones are configured in many different ways.
Hydro-cyclone linings, such as polyurethanes and ceramics, are available for different chemistries (such as where amines are present) and for handling highly abrasive materials. Hydro-cyclones can also be made from cast hard metals such as ni-hard and hi-chrome. These designs are often used in processes known as heavy media for coal and iron ore, etc.
In Aggregate applications, typical recovery of 2.7 specific gravity particles is -75µm at 2.7 SG.
How Hydro-cyclone Work
Slurry enters the feed inlet at a designated pressure and volume. Independent of the shape or configuration of the inlet, slurry follows the fall of the upper cylinder in a rotating action. Resultant centrifugal forces send coarser material to the outer wall to travel downward and be further accelerated in the conical sections. These coarser fractions then exit through the apex, or spigot, at the bottom of the Hydro-cyclone. Finer fractions remain rotating with the fluid in the inner core and are removed upward by an air core.
The air core is formed at the spigot/apex as air is drawn into the Hydro-cyclone. The vortex finder provides a pathway for the air to exit the body of the Hydro-cyclone. As the air flows through the vortex finder, the fluids and finer fractions are dragged along to perform the classification of materials. The air core is important for the proper operation of the cyclone. If the air core is not formed due to excessive solids discharge, called roping, the cyclone will not efficiently classify the slurry. The apex/spigot is sized for the expected range of solids. Significant process changes may require a resizing in the spigot/apex.
Features:
Hydro-cyclone refers to the application of high-performance polyurethane lining inside hydro-cyclone bodies to protect against wear caused by abrasive slurries and high-velocity particle flow. This lining significantly enhances the hydro-cyclone’s service life by offering superior resistance to corrosion, impact, and abrasion. Commonly used in mining, mineral processing, and sand washing industries, PU linings ensure smoother operation, reduced maintenance costs, and improved separation efficiency under demanding working conditions.
Chema Engineers Crushing and Mining Solutions Pvt Ltd hydro-cyclones represent the next generation of hydro-cyclones. Equipped with world-class technology and several innovative features, the new range of hydro-cyclones offers significant product advantages in comparison to other hydro-cyclones.
Features
-Involute entry
-Modular design
-Different cone angles
-Light weight overflow pipe
-Simple fastening arrangements
-Radial/Manifold /Mushroom arrangement
Benefits
- Less turbulence, higher efficiency less wear, finer cut point
- Easy maintenance, flexibility
- Wide range of cut points
- Less Installation & maintenance time
- High range of abrasion resistance, longer life, wide application area
- Compact & efficient cluster design
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