Wet drum magnetic separators are used to recover ferromagnetic solids from a slurry feed. The major areas for their use are in media recovery in dense medium separation plants and in beneficiation of magnetite ore. The picture shows the recovery of the magnetic particles by a wet drum magnetic separator Physical construction of wet drum separators is slightly different for the two applications, with the ore concentrator being more rugged in construction and subject to more detailed specifications than the media recovery unit.
The drum is partially submerged in a tank of water and carries the material to be treated across the face of the magnetic system and the magnetic concentrate out of the tank. The size of the feed treated in these separators rarely exceeds 2 mm while the bottom size of the feed can be as small as 20 mm.The design of the tanks for the drum separator is very important and is determined by the objectives of the separation process.