Pilot plant nutsche filters, filter dryers / vacuum dryer

Pressofiltro® / Turbodry® PF/TD 5 - PF/TD 100

This Pilot Plant can either be used as Agitated Nutsche Filter / Filterdryer or Vacuum Dryer. 

Special properties for the customer’s benefit:

  • calculation, manufacture and design are in accord with Pressure Equipment Directive 97/23/EG or/and ASME U-stamp as well as with cGMP and FDA guidelines
  • approved for using in ATEX danger zone, group II 2G 2D (zones 1/ 21)
  • suitable as vacuum dryer, filter dryer or agitated nutsche filter
  • shaft seal through gland nut
  • device built on skid
  • control system protected against explosion (EEx-d)

 

Options

  • Multilayer
  • PLC-system
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Inerting

Prior to feeding slurry into the agitated Nutsche filter or filter dryer the vessel interior is inerted by a controlled displacement of the oxygen containing atmosphere with Nitrogen. This procedure prevents the potential formation of an explosive atmosphere in the vessel interior.

The washing liquid is evenly distributed over the entire filter cake surface using a wash ring with spray nozzles. By again pressurizing the vessel interior the washing liquid is forced thru the filter cake, displacing any remaining mother liquor and is discharged the same way as the mother liquor during the filtration.


In the reslurry washing process the washing liquid is added to the vessel and mixed with the filter cake using the agitator. By again pressurizing the vessel interior the washing liquid is forced thru the filter cake, displacing any remaining mother liquor and is discharged the same way as the mother liquor during the filtration.

Functioning Vacuum dryer Turbodry

For the functioning steps of the vacuum dryer Turbodry please click here.

Technical data

Dryer Type Internal 
Ø
mm
Filter area

 
Cake volume max.
l
Speed
max.
1/min
Drive
kw 
 
PF/TD 5 200 0.03 0.2 - 1.5 150 1.1
PF/TD 10 250 0.045 0.5 - 3 150 1.5
PF/TD 20 270 0.055 1 - 5 120 1.5
PF/TD 50 400 0.12 2 - 15 80 2.2
PF/TD 100 500 0.2 4 - 25 70 4.0