| 摘要 |
A scraper for a sugar centrifuge comprises a scraper blade mounted on an arm which is moved down into and pivoted within the centrifugal bowl, such that the edge of the scraper blade is moved against but out of contact with the bowl wall for scraping off the sugar adhering to the bowl wall. After the scraping edge, the scraper blade has an afterscraper in direct or indirect contact with the bowl wall. The afterscraper comprises in one embodiment a block whose boundary plane facing the scraping edge forms an acute angle with the tangential plane along the line of contact of the block with the bowl wall. In another embodiment, a rail or flange is mounted on or formed in one piece with the scraper blade on the rear side of the scraping edge and arranged at a distance from the wall, in order to define, together with the rear side of the scraper blade and along the scraping edge, a channel for taking up sugar which fills out and solidifies within said channel, thereby building up a solid formation of sugar in contact with the bowl wall. |
