Brush skimmers are packaged in a variety of configurations from
stand alone units to modules that can be incorporated into recovery
vessels or fitted on the top of weir skimmers. The types of oil
that a brush skimmer can recover is dependent on the stiffness and
density of the bristles used as well as the comb configuration.
Generally speaking finer softer bristles are better for light oil
whereas a stiffer wider spaced bristle is better for heavy oil.
The brush chain has been used extensively over a number of years,
it differs from static skimmers in that it relies on the forward
motion of the vessel with the water passing between the rows of
brushes to coat the bristles with oil. The brush chain is circulated
with the tips of the bristles coming up from under the oil layer.
Scrapers recover the oil into a sump at the top of the unit.
Static brush skimmers operate in the reverse direction with the
brush wheels rotating down into the oil layer. In this way the surface
tension draws the oil towards the unit. More modern devices such
as the Desmi Helix have the scraper assembly on the inside of the
frame, directly scraping the oil into a central sump.
Questions? drop us an email
and we will be happy to help. Click
on pictures to enlarge.
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