BOKELA Pan Filter

The innovative design of the BOKELA pan filters sets a new standard for pan filters. The filter performance, the cake wash efficiency and the reliable and economic operation of those filters are outstanding.

The pan filters consist of:

• a "forced feeding system"
  

• an adapted cake discharge system by scroll
  

• a heel re-slurring
  

• well proven control philosophy for a reliable and safe operation
  
  

Design Focus

The pan filters are characterised by following features:

• the "forced feeding system" homogeneously distributes the slurry on the pan surface so as to obtain an even cake
  
  

• the cells have an inner volume reduced to the minimum and a special design in order to optimise the hydraulic design by permitting a quick drainage (sharp splitting of filtrates also at high speed)
  

• even the cake wash system is designed to equally distribute the wash liquid on the pan surface in order to optimise wash liquid consumption (counter-current process)
  

• the heel remaining on the pan after the scroll is effectively re-slurred with compressed air blow and spray nozzles
  
  

• the process angles are individually adjusted to each process and client's requirements so as to get the highest possible throughput for the concerned product
  
  

• in order to improve the wash efficiency and to reduce further the moisture content of the cake, a steam cabin can be installed on demand
  

• on demand, the filtrate pipes can be installed in such a way that they will just have to be swiveled during maintenance work (replacement of wear plate for example)
  
  

• the filter is automatically operated from the start to the stop with a proven interlock system for a safe operation
  (filter speed controlled by cake thickness for optimal wash efficiency)
  
  

• also circumferential overflow launder and an exhaust hood can be installed for safety issues
  
  

Exemplary Applications: