By Greg Fenrick

According to Ron Magill, the author of the EduMine course The Mill Operating Resource – 2: Mineral Recovery, the thickener is a very basic piece of machinery. It simply provides a holding area large enough to allow the concentrate time to settle to the bottom. Once it has settled, there are adjustable rakes that rotate and pull the solids to an exit point (Figures 1). With the solids settling to the bottom, the liquid, called the liquor, overflows into a launder. Depending upon how the thickener is being used, these two substances, the solids and liquor, will go their separate ways each being processed in accordance with the needs of the circuit.


Figure 1 - Courtesy of the EduMine course The Mill Operating Resource – 2: Mineral Recovery


Figure 2 - Courtesy of FLSmidth Minerals

Vacuum Drum Filter Manufacturers

Westech Equipment
FLSmidth Minerals
Outotec Oyj
Quinn Process Equipment Co.
Westpro Machinery Inc.

Thickener Articles

Variable dilution feed system for thickeners
Pogo thickener testing
Improving gravity thickener technology
Base-metal mines return to basics
Paste Tailings
Tools for Mining: Techniques and Processes for Small Scale Mining
Understanding the Thickening Process (pdf)

Thickener News

TEFSA and Della Toffola broaden mining presence
Copper King Mining Corporation Provides Additional Mill Construction Updates