What is the agitated Nutsche filter dryer

Agitated Nutsche filter / dryer (ANFD) is a filtration and drying equipment used in applications like paint, dye, pesticide, chemical and pharmaceutical production.

The Nutsche filter combines the function of stirring, washing, filtration and drying all in one. It can replace the production line of ordinary pressure filters, centrifuge and drying machines..

The Nutsche filter has closed working vessel under vacuum or pressured condition. This eliminates the possibility of contamination of the filter cake and discharge of the solvent evaporation.

So the Nutsche filter is suitable for critical production process of inorganic salt & chemical compound powder and active pharmaceutical ingredients (API) with GMP and FDA standard requirements.

What is the Nutsche filter disc

Nutsche filter disc is the key component on the bottom of the Nutsche filter. The filter disc keeps the solids inside the vessel and lets the liquid passing through.

Filter cloth / fabric, wire mesh, porous PTFE and multi-layer sintered wire mesh are among the most common filter disc types.

Advantage of the sintered wire mesh Nutsche filter disc

Sintered wire mesh Nutsche filter disc is often made from stainless steel SS316L, SS904L or Hastelloy C276 / C22 alloy.

The advantages of the sintered metal mesh filter disc comparing to other types are:

  • No migration of fiber, wire and material from the filter disc
  • High temperature and pressure resistant
  • Reversed flow direction is acceptable, suitable for backwashing
  • Resistant to high backpressure and vacuum
  • Good heat transfer for better drying performance
  • Easy to clean and reusable, long service life
Sintered wire mesh filter disc for the Nutsche filter, on the disc filter support

Sintered wire mesh filter disc for the Nutsche filter

Popular sintered wire mesh types for the Nutsche filter disc

The sintered mesh types used in Nutsche filter disc differ from the application and filter design.

Most popular type is the 6 layer standard sintered mesh. It has strong self-supporting strength and various micron rating options like 5 10 15 20 micron.

Others are sintered mesh with perforated metal or all square weave sintered mesh, for higher pressure resistance and high flow rating respectively.

On the right 3 popular sintered wire mesh types for Nutsche filter disc, on the left a man facing a 2000 mm sintered mesh filter disc

Popular sintered wire mesh types for Nutsche filter disc

Why the services for sintered wire mesh Nutsche filter disc is needed

The sintered mesh filter disc is under risk of abrasion and damage during the agitator stirring, vacuum backpressure, cake discharge and accidental operating.

Scratch or damage of the sintered mesh can cause solid escaping and liquid bypassing.

Bump on the surface of the sintered mesh filter disc will induce high risk of agitator clash and further damage of the filter disc plate.

Welding seam cracks will lead to leakage of the solvent and peeling off risk of the sintered wire mesh.

Welding seam crack on the sintered mesh Nutsche filter disc

Welding seam crack on the sintered mesh Nutsche filter disc

So the sintered wire mesh filter disc should be regularly checked during maintenance to ensure it is in good working and safety condition.

Once there are defects found on the surface, the sintered mesh filter disc should be repaired or replaced.

What are the services we can provide for the sintered wire mesh Nutsche filter disc

Lianda Filter provides the following services for Nutsche filter users:

  • Repairing of the welding seam cracks
  • Replacement of the sintered wire mesh on the disc
  • Manufacturing of whole sintered mesh filter disc as spare part (duplicate)
  • Trouble shooting and retrofit of the sintered wire mesh on the filter disc

We provide instant welding seam repair in our factory or on customer’s site.

We can also guarantee 5 days fast replacement of the sintered wire mesh for domestic customers within short time maintenance or switching shutdown.

Replacing the sintered wire mesh on the Nutsche filter disc

Replacing the sintered wire mesh on the Nutsche filter disc

We are also providing the sintered wire mesh replacement for abroad customers.

It takes longer time because of the import and export procedure. However, the customers are satisfied with the quality, performance and the overall cost.

What is our advantage on the sintered wire mesh Nutsche filter disc

Lianda Filter has comprehensive experience on the service of the sintered mesh Nutsche filter disc.

  • 15+ years experience on sintered wire mesh developing and production
  • 20+ years of experience on manufacturing of metallic filter elements.
  • 2500 mm diameter maximum for monoblock sintered mesh filter disc
  • 3500 mm maximum for section assembly type of sintered mesh filter disc.
Changing the sintered wire mesh on the assembly section of Nutsche filter disc

Changing the sintered wire mesh on the assembly section of Nutsche filter disc

Are you looking for sintered wire mesh Nutsche filter disc service and provider?

Contact us to discuss more.

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