Oil recovery apparatus and method

摘要

There is shown an oil recovery apparatus and method which includes a plurality of like-sized disks carried on a rotatable shaft. These disks are partially immersed in the fluid which contains the unwanted oil or oil-like material to be removed or recovered from the larger body of fluid. The disks are preferably of plastic or are plastic coated and during immersion the oil contaminator is picked up by and with the engagement of the disks in the oil portion of the fluid after which plastic scraper blades engage the sides of the disks to remove this oil from the sides of the rotating disk. The scrapings which are removed are fed by a channel guideway or ways to a collector. Two arrangements of plastic scraper assemblies are shown. In one embodiment there are two blades arranged to straddle the disk and simultaneously scrape opposite sides of this disk as the disk is rotated. The removed oil is carried by two conductors to a collector. In the other arrangement the scraper assembly carries a blade which extends outwardly to engage and scrape facing surfaces of two adjacent disks. The scraped oil is fed to a common conductor and then to a collector. The scraper normally includes two plastic ribbon scraping portions, each of which are bent into a scraping angle as they are pressed into scraping engagement with a side of the disk. The scraper units are readily removable from the collector apparatus for cleaning and/or repair and the strips of plastic which form the scrapers are readily and inexpensively replaced.