| 摘要 |
PROBLEM TO BE SOLVED: To scrape sludge adhering to the shaft periphery wall of a shaft part of a screw conveyor to avoid a situation such as reduction in a conveying amount, inability of conveyance, a blockade of a chute or the like, caused by adhesion or growth of the sludge. SOLUTION: In this scraper, scraping blade shaft 15 is provided along the shaft part 5, above the shaft part 5, below an input port 3. By rotating the scraping blade shaft 15 interlockingly with rotation of the shaft part 5, plural scraping blades 17 fixed to the scraping blade shaft 15 scrape the sludge adhering to the shaft periphery wall of the shaft part 5.
|
