The invention relates to a composite sandstone
powder concentrator. The composite sandstone
powder concentrator comprises a fan, a V-shaped separation device, a medium sand conical hopper, a cage rotor, a fine sand conical hopper and a
cyclone separator, wherein a feeding port of the V-shaped separation device is obliquely communicated with a distribution device;
multiple stages of scattering blocks with the number of the scattering blocks being increased stage by stage are arranged on one side of the interior of the distribution device; deflection blades capable of being adjusted in a deflection mode are arranged at the ends of first fixed scattering blades of the V-shaped separation device; telescopic blades capable of being adjusted in a parallel front-back
displacement mode are arranged on the side portions of second fixed scattering blades of the V-shaped separation device; and a discharging port is communicated with the bottom of the medium sand conical hopper and provided with amaterial segregation device. Coarse sand, medium sand, fine sand and
powder in sandstone are separated and collected in an environment-friendly manner by adopting composite powder separation, the distribution device scatters materials to form a uniform material curtain, and sand molds with different particle sizes and specified gradings in
machine-made sand are accurately separated out by adjusting and controlling the movement time and
stroke of the materials in the powder
concentrator, so that accurate grading meeting specified requirements is achieved, the treatment capacity can be remarkably increased, and the separation efficiency and effect of a composite sandstone separator are improved.