Flight Scrapers

Flight scrapers are generally used to move oil and sludges to pickup points (see Figure 7.16.4). However, they can also be operated as skimmers when designed to push float-

FIG. 7.16.6 Belt oil skimmer.

ing oil up an inclined ramp to a collecting pan. Most units have a chain and sprocket drive mechanism with wooden flights. Their cost is usually higher than other skimmers.

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