A hydrocyclone desander is a vital piece of equipment in a drilling fluid solids control system, it used to remove abrasive sand and larger particles from the drilling mud.By using centrifugal force to separate solids from the liquid, the desander protect
A hydrocyclone desander is a vital piece of equipment in a drilling fluid solids control system, it used to remove abrasive sand and larger particles from the drilling mud.By using centrifugal force to separate solids from the liquid, the desander protects downstream drilling equipment from excessive wear, reduces drilling costs, and maintains the optimal properties of the drilling fluid.
How a hydrocyclone desander works
The desander is the second phase of a drilling solids control system and works in conjunction with other equipment like shale shakers and desilters.
Fluid entry: Drilling fluid is pumped from the mud tank into the desander's manifold and then into a bank of cone-shaped hydrocyclones.
Vortex action: The fluid enters the hydrocyclones tangentially under pressure, causing it to spin rapidly and create a vortex.
Separation: Centrifugal force pushes the denser, larger solid particles toward the outer wall of the cone. These solids spiral downwards toward the bottom of the cone.
Discharge: The separated solids exit through the bottom opening (apex) as the underflow.
Overflow: The lighter, cleaned drilling fluid moves in an upward spiral through the center of the cone and exits through the top opening (vortex finder) as the overflow.
Optional drying: In some units, the underflow solids are discharged onto a vibrating shaker screen, which provides further drying to recover more drilling fluid.
Specifications to consider
Number and size of cones: The quantity and diameter of the hydrocyclone cones determine the unit's capacity and particle separation efficiency. Common sizes for desander cones are 8, 10, and 12 inches.
Particle size removal (cut point): Desanders are typically designed to separate medium-sized solid particles, with a common separation range between 45 and 74 microns.
Material: The cones are often made from wear-resistant materials like polyurethane to withstand the abrasive nature of drilling fluids and ensure a longer lifespan.
Configuration: Some desanders are mounted over a shale shaker to maximize fluid recovery from the solids, while others are standalone units.
+86 1871 286 0976 
sales@jxsolidscontrol.com 
