Desanding hydrocyclone KCSS series

DeSanders, also known as separators, work in a similar manner as cyclones. KREBS® Centrifugal Sand Separators (KCSS) Sand- or grit-laden fluid feeds into the unit, where the entry design creates a vortex action with the slurry. As the water spirals inward, extremely high centrifugal forces move the sand outward, toward the cylinder wall. All desanding units have an internal cone section that accelerates the rotational velocity of the water, thus producing higher centrifugal forces. As the diameter of the cone gets smaller, the acceleration increases which results in a finer separation and/or more solids removal. Sand particles then progress in a spiral path toward the apex (bottom) of the cone, where they discharge into an accumulator tank that collects the solids. The de-sanded liquid exits the separator from the overflow at the top. Our KCSS Series DeSanders are highly efficient due to the specially designed feed entry that pre-classifies sand before entering the cylindrical section. This causes the sand particles to enter the cylinder with a very smooth flow pattern along the wall. It also minimises solids-induced turbulence, along with the familiar “ricochet: action that you find in conventionally fed cyclones. Because the energy is converted to centrifugal force, rather than wasted on turbulent forces, there is no upset to the vortex action, and the internal surfaces of the unit, including the accumulator tank, experience very little wear.