NPK compaction granulation

For fertilizers components (AS, KCI) and (NP, NK, PK, NPK) fertilizers, the main stages of the process can be as follows:
  • Unloading of raw materials from wagons or trucks and transferring into storage boxes.
  • A preparation unit for raw materials (delumping, screening, crushing, drying).
  • A weighing and mixing unit of the raw materials.
  • A compaction unit transforming the powders into flakes.
  • A granulation-screening unit converting the flakes into granules of the required calibrated range.
  • And for some plants and in particular for the production of compacted fertilizers, a finishing unit with polishing and coating of granules for improving appearance (round shape), anticaking and reducing amount of residual fines with easier storage.
  • Transferring of granules into storage boxes.
  • Packing and pelletizing of finished products.

Usual complete compaction-granulation plant for NPK fertilizers

28 Tph NPK fertilizers compaction-granulation plant

Main advantages of NPK compaction-granulation

A TECHNICAL SOLUTION

  • No segregation problems.
  • Less tendency for caking.
  • Quick change during the production : 30 minutes.
  • 2 T/h to 60 T/h : full automated plant.

A COMMERCIAL SOLUTION

  • Wide spectrum of fertilizer formulas.
  • Production of small quantity per formula: great flexibility.

AN ENVIRONMENTAL SOLUTION

  • No pollution problem : no gas and liquid effluents.

AN ECONOMICAL SOLUTION

  • Dry process: no energy for drying.
  • Few corrosion problems : low maintenance cost.
  • Low investment cost : neither dryer nor cooler equipment.
  • High adaptability to the local market for the raw materials.

A COMPLETE RANGE OF EQUIPMENT

For this type of fertilizers plant,

SAHUT-CONREUR

is able to design and manufacture/supply the following equipment:

Mixer

Granulators

Screens

Compactor

Twin screw mixer

Dedusting system

Polishing drum

Flake-breaker

Coating drum

Packing unit

MCC

Control-drive system