Outotec supplies pilot scale thickening and clarifying equipment backed by trained, highly experienced personnel, to meet any process requirement. The size and configuration of the equipment is based on material characteristics and performance goals. Outotec has a comprehensive range of pilot plant units for conventional settling, high rate thickening and/or clarifying, high compression and also paste thickening. A feed rate of 1-8m3/h (4.4-35.2 US gpm) of pulp is required for the pilot plant thickener/clarifier.
Testing is required for the selection of correct thickener or clarifier size and configuration for each customer’s application. Outotec is renowned for its professional testing service using cylinder settling tests, continuous dynamic bench-scale tests and pilot plant tests.
The method used to accurately determine the size and expected performance of Outotec High Rate Thickeners and Clarifiers is dynamic bench or pilot scale testing, as static settling tests do not adequately simulate the high rate principle.
Continuous bench-scale tests are performed in our 100 mm (4”) diameter dynamic thickener or clarifier at site or in our laboratories. A sample of slurry containing 10–25 kg (22–55 lb) of solids is all that is required for a series of tests to determine underflow density and overflow clarity for a range of feed rates and flocculant dosages.