|Main Applications of Rotary Drum Vacuum Filters|
|Rotary Drum Vacuum Filters||
When is Rotary Vacuum Drum Filter Used?
Rotary drum filters are usually used for continuous dewatering of slurries with coarse aggregates. Drum filters are suitable for slurries with high solids contents (2-40 wt. %).
Either cake or filtrate can be the filtration product.
How CPE Rotary Drum Vacuum Filters Work
This filter type consists of a cloth covered drum rotating in a tank. The surface of the drum is divided into shallow compartments which are connected to an automatic for vacuum application.
As the drum rotates, each compartment goes through the same cycle of operation: filtration, de-watering & cake discharge, reconditioning or cloth cleaning.
Vacuum is applied to submerged segments, which causes the mother liquor to flow through the filter cloth, while solids build up on the cloth to form the cake.
As sections emerge from the tank, the vacuum de-waters the cake.
When all mother liquor has been removed, the vacuum is automatically cut off and the cake is discharged from the drum.
Filter Discharge Systems
CPE drum filters are available in five different cake discharge systems: Blow back scraper, Roller, String, Belt, Knife advance – pre coat. The drum filters pre coat system may enhance filtrate clarity or assist with cake build up.
Filtration areas range from 1 to 240 m2.
Filtration Process Optimisation
We offer retrofit and upgrade services for drum filters aiming to enhance the filtration performance and capacity, increase operation safety, and reduce recurring maintenance shutdowns.