Heavy Media Bath

Daniels has specialized for years in the science of the DENSE MEDIA SYSTEM WASHER and is the undisputed leader in this field of coal washing. Over 300 washers are in operation producing millions of tons of clean, coarse grade coal a year. No heavy medium process equals the DENSE MEDIA SYSTEM for separation accuracy or low-cost performance. This makes it possible for even the small operator to compete by providing a consistently high quality product with minimum operating costs.

Operation :
The media is a combination of magnetite and water which creates a liquid suspension that is denser than coal but not as dense as the rock. By adjusting and controlling the specific gravity of the media, a range of separations can be made to better control the grade of the final product. Media densities can range from 1.30 to 1.70 specific gravity. The feed enters the vessel from one side, plunges into the media bath, and is forced to submerge by a submergence baffle to prevent rafting of non-float material. Media enters just below the feed and carries the coal through the separation zone. Any heavy particles settle to the bottom and are removed by the flight conveyor system. Floatable particles that may be trapped in the falling heavy particles are released by the purge media coming through the purge hoppers.