Rotary Scrubber

Rotary Scrubber

It is used as a cost-effective washing unit to upgrade the quality of crushed ore and rock by removing clays, coatings and fine particles through water. For efficient washing, feed size should be 2" minimum. For smaller feed size and softer material scrubbing becomes difficult.

Operating Principle:

The drum shell is made to rotate at a low speed, generally at 10-20 rpm., by means of a chain or gear drive. Material with required amount of water is fed through one end which is lifted up to some height by the lifters inside shell. Angle lifters are also used for pushing the material farward.

Clays and finer materials are disintegrated from the hardrock or ore due to the scrubbing action within the lumpy material. Higher percentage of clay requires the material to be scrubbed for a longer time. Scrubbing is to be followed by washing and screening.

Constructional Features:

It is a cylindrical drum supported on 4 carrying rollers or two trunnion bearings. Thrust rollers are provided to restrict axial movement of rotating shell. Liners and lifters are fitted inside the shell (durm). Liners may be of rubber or steel. Drive consists of motor, coupling, gear box, chain and sprocket or gear and pinion.

Trommel Screen may be provided at the discharge end to remove rough product, unwanted material form the washed product.

Salient Features:

  • Shell liners can be of Mn steel or rubber and discharge trommel can be supplied with wire mesh or PU panel.
  • Bigger size scrubbers can be provided with babitted trunion bearing and Hi-lift arrangement.
  • Low susceptibility to breakdown due to high workmanship and quality materials
  • Easy replacement of wear and spare parts
  • Low Power consumption

Available sizes:

Details about some of the mining equipments: