Archimedean screw dewatering reclaimers, mod. RC, are machines that solve the problem of sand recovery and rinsing. The machine is made up of a moulded tub with a 15° inclination, the inside of which is equipped with an Archimedean screw driven into rotation by a gear motor unit. The material gets into the tub from a distributor; the solid material deposits on the bottom and is carried away by the Archimedean screw while water together with the finest parts, remaining in suspension, goes out from small overflow outlets arranged inside the machine. The Archimedean screw is steel-made and it is equipped with special anti-wear interchangeable steel elements for the most abrasive materials.

TECH SHEET

Bucket dewatering reclaimers, mod. RTC – RTCD, are machines which solve several problems:

- recovery of very fine sands, retained in the slurry, thus also solving the problem of semi-cleaning of discharge waters.
- accurate sand washing;
- sand slime removal.

The machines are essentially made up of a broad tank in which an impeller, equipped with buckets with a perforated bottom plate, rotates. Side mounted there is the Archimedean screw that forms integral part with the impeller and rotates in the tank where the decantation of the fine material takes place. While turning, the Archimedean screw transports the deposited material towards the impeller which then recovers the fine material. The rotating movement is given to the machine through a transmission unit, motor, reducer, pinion and crown.

TECH SHEET