Abstract: A device for separating and recovering solid particles or granulated matel from a stream of fluid in a state of high purity and with minimal fluid remaining in the recovered solids. The device also provides a calibration or sizing of the recovered solids. More particularly, the device is suitable for recovering sand and gravel from a liquid slurry in dredging operations or the like and comprises a chamber into which the slurry is discharged in the form of two diametrically disposed impinging jets to decrease the kinetic energy of the slurry. The chamber is provided with one or a plurality of outlets disposed in communication with a corresponding number of channels each having a discharge port in the base thereof and a deflector in the discharge port, preferably disposed at an angle of about 45 degrees, for directing the concentrated lower layer of slurry in each channel through the discharge port into a deposition tank.