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Krettek Separation horizontal peeler centrifuge: More process-equipment than dewatering device. Six step course of excellence, STEP 1 Heel cake regeneration

7. May 2021

During introduction we provided you with information on the product range of Krettek ProCent® and PharmaCent® Centrifuges.

The Krettek Separation ProCent® Turbo-series is not only best in class peeler centrifuge for solids-liquids separation: The unique Krettek backflushing rotor as the key element in a complete system offers much more than just centrifugal filtration of finest particles with maximum results at minimum effort.

The special design and various options allow complete process-steps inside the equipment, without additional external vessels, components, … such as:

  • Heel cake regeneration (News on 2021/05/07)
  • Extractions (News on 2021/05/14)
  • Counter current washing (News on 2021/05/21)
  • Resuspending and dissolving (News on 2021/05/28)
  • Solvent displacement (News on 2021/06/04)
  • Example application Lithium (News on 2021/06/11)

Today’s topic: Heel cake regeneration and removal:

Regeneration of the heel cake

Heel cake regeneration and removal is one highlight in every Krettek Separation ProCent® and PharmaCent® peeler centrifuge with backflushing rotor.

On a standard peeler centrifuge, typically after a number of cycles the complete heel cake needs to be removed, since finest materials accumulate inside and block the cake over time. By the unique Krettek heel-cake-regeneration step via backflushing, the cake can be regenerated for a very long time. This happens fully automatically, PLC-controlled and freely adjustable within seconds before the next feeding starts.

As a result, the heel cake removal intervals can be prolonged by a multiple of those regeneration cycles. This increases the total operational process time significantly, since dead times are reduced.

Moreover, the backflushing system allows an easy and complete heel cake removal in the most efficient way. The backflushing liquids can in combination with the overflow skimming device be separately discharged for e.g., separate further processing or recirculation.

Learn more about the advantages of various process steps inside the Krettek Separation horizontal peeler centrifuge on our Step 2: Extractions on May 14th 2021.

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