... main types of vacuum rotary drum filter: Vacuum Rotary Drum Pre-coating Filter, Belt Filter, Scraper Filter Types and features:1) Vacuum Rotary ... solution for soliquoid (slurry, sludge, etc) with such characteristics as fine-grained, colloid, block (blinding) etc, and reclaim ... the soliquoid (slurry, sludge, etc) with such characteristics as moderate in the solid concentration of solid phase and ...