QUARTZ SAND ENRICHMENT DEVICE Russian patent published in 2017 - IPC B07B9/00 

FIELD: machine engineering.

SUBSTANCE: device for enrichment of quartz sand comprsises a supply hopper for unenriched quartz sand which is equipped with a discharge feeder, a lifting-and-transporting mechanism supplying unenriched quartz sand from the supply hopper to the input of a vibrating screen, a magnetic separator which input is connected to the under screen output of the vibrating screen, and the output is connected to the hopper for enriched quartz sand, and a hopper for oversized quartz sand. The device is additionaly provided with a reverse feeder for discharging the hopper with oversized quartz sand and a flow switch which input is connected to the above sceen output of the vibrating screen. The first output of the flow switch is connected to the input of the lifting-and-transporting mechanism. The second output of the flow switch is connected to the oversized quartz sand hopper connected by its output to the input of the reverse discharge feeder, the first output of which is connected to the input of the lifting-and-transporting mechanism, and loading of oversized material for disposing is carried out from the second output.

EFFECT: reduction of quartz sand losses.

3 dwg