| 摘要 |
A separator 15 comprises a casing 22, a horizontal rotary screen 60 within the casing, a fixed scraper 140 mounted in the casing above the screen, an inlet conduit 25 on one side of the scraper for depositing slurry on the screen, an outlet conduit 40 on the other side of the scraper and gas nozzles for directing a gas stream at the solids as they encounter the scraper, entraining them, and directing them through the outlet conduit 40. The screen divides the casing 22 into upper and lower chambers 23 and 24. In operation, the gas stream carries the entrained solids to a separate receiver. The gas is then recirculated. The lower chamber 24 is evacuated so that a portion of the gas in the upper chamber passes through the slurry layer to displace liquid through the screen while further amounts of the gas cause additional drying of the solids. The recovered liquid is automatically degassified. <IMAGE> |
