| 摘要 |
A separator for separating solid material from slurry. The separator comprises a drum which is rotatable about a vertical axis and has a tubular perforated wall. Liquid passing through the perforated wall is discharged to an appropriate output, and solid material deposited on the inner surface of the wall is scraped off the drum wall and transported vertically upwards by a scraper in the form of, for example, an auger. The displaced material is discharged from an outlet at the top of the drum. The auger may be rotated about the same axis as the drum but at a different speed from the drum.
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