The skimmer makes use of the differences in specific gravity and
surface tension between oil and water. These physical characteristics allow a moving
collector in the shape of a belt, operating on a motor and pulley system, to attract oil
and other hydrocarbon liquids from the surface of the fluid. After traveling over the head
pulley, the belt passes through tandem wiper blades where oil is scraped off both sides of
the belt, and discharged. The tail pulley has flanges which allow it to roll freely on the
inside of the belt without becoming dislodged. It requires no bearings and does not need
to be fastened to the tank. If turbulent conditions exist, an optional tether and cage
assembly prevents the tail pulley
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from being dislodged.
BRI makes a wide variety of
equipment for different types of containers,so flexible design options are important. The
Abanaki skimmers accommodate many different configurations with customized belt lengths,
different mounting configurations and various motor options.
According to Ahern, "Over
the years we've tried a lot of different types and manufacturers - coalescers, tube
skimmers, disk types and others. But, we always come back to Abanaki belt skimmers. Even
when we are using coalescers and filters, the Oil Grabber improves their efficiency by
preventing an overload of too much oil." |