Bokela - Model BoVac -Vacuum Drum Filter

Drum filters are the oldest, most versatile and therefore, the most common type among continuous rotary filters. With the BoVac Drum filter series, BOKELA has created a modern drum filter with an innovative, distinctive profile. BoVac Drum filters have replaceable filter cells. They allow a cloth change in only about 1–2 hours, without stopping the production. This improves occupational health and safety and maximizes production.

The ingenious design of the filter hydraulic system ensures excellent operating results of these vacuum filters. BoVac Drum filters are also convincing in demanding applications with outstanding results in filtration, washing and demoisturing. They are very compact and have only small space requirements.

BoVac Drum filters work fully automatically and are characterized by reliable operation and easy maintenance. Various optional features enable optimal adaptation to individual product and process conditions. BoVac Drum filters can also be operated at high temperatures and in hazardous areas. They are available with filter areas from 1 m² to 9 m².

Due to the modular design, BoVac Drum filters can be individually adapted to specific product and process characteristics. The main target is to achieve superior performance, best operating characteristics and high availability . The basis is the well-calculated filter hydraulic system, which is tailored to the special features of the separation task, and the modular design with optional features.

The hydraulically optimized design of the control head and filter cells with filtrate pipes at the leading and trailing edge of each cell guarantee fast filtrate removal and complete emptying of the filter cells. These are the prerequisites for high filter speeds or a high throughput and for efficient washing of the filter cake with exact separation of the individual filtrates. The number and size of the filter cells allow the formation of a homogeneous filter cake, which is evenly flowed through by the wash liquid. This is an important precondition for a good cake washing.

Special features of the BoVac Drum filter design:

• exchangeable single cells for quick re- clothing
• leading and trailing filtrate pipes
• control head with pre-separation function
• cake removal by compressed air blow-back
• large process zones for cake formation, washing and demoisturing
• encapsulated bearings
• water lubrication, meaning no grease or oil lubrication
• modular design with optional features:
  • washing system for cake wash
  • encapsulation
  • exhaust hood
  • CIP system