Download - A Look at Compaction Granulation
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Compaction Granulation
Experts in process design and material processing for over 60 years.
A Look at
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Compaction granulation is a method of pressure agglomeration used to turn material fines into a granular product.
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This method relies on the principle that under extreme pressure, some materials will adhere to themselves without the use of a binder.
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Compaction is used throughout a variety of industries, to process all kinds of materials. Common applications include:
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Compaction is used throughout a variety of industries, to process all kinds of materials. Common applications include:
• Fertilizers
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Compaction is used throughout a variety of industries, to process all kinds of materials. Common applications include:
• Fertilizers• Chemicals
![Page 7: A Look at Compaction Granulation](https://reader033.vdocuments.us/reader033/viewer/2022050714/55ce0cedbb61eb537e8b4625/html5/thumbnails/7.jpg)
Compaction is used throughout a variety of industries, to process all kinds of materials. Common applications include:
• Fertilizers• Chemicals• Detergents
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Compaction is used throughout a variety of industries, to process all kinds of materials. Common applications include:
• Fertilizers• Chemicals• Detergents• Pigments
![Page 9: A Look at Compaction Granulation](https://reader033.vdocuments.us/reader033/viewer/2022050714/55ce0cedbb61eb537e8b4625/html5/thumbnails/9.jpg)
Compaction is used throughout a variety of industries, to process all kinds of materials. Common applications include:
• Fertilizers• Chemicals• Detergents• Pigments• Minerals
![Page 10: A Look at Compaction Granulation](https://reader033.vdocuments.us/reader033/viewer/2022050714/55ce0cedbb61eb537e8b4625/html5/thumbnails/10.jpg)
Compaction is used throughout a variety of industries, to process all kinds of materials. Common applications include:
• Fertilizers• Chemicals• Detergents• Pigments• Minerals• Polymers
![Page 11: A Look at Compaction Granulation](https://reader033.vdocuments.us/reader033/viewer/2022050714/55ce0cedbb61eb537e8b4625/html5/thumbnails/11.jpg)
Compaction is used throughout a variety of industries, to process all kinds of materials. Common applications include:
• Fertilizers• Chemicals• Detergents• Pigments• Minerals• Polymers• Oxides
![Page 12: A Look at Compaction Granulation](https://reader033.vdocuments.us/reader033/viewer/2022050714/55ce0cedbb61eb537e8b4625/html5/thumbnails/12.jpg)
Compaction is used throughout a variety of industries, to process all kinds of materials. Common applications include:
• Fertilizers• Chemicals• Detergents• Pigments• Minerals• Polymers• Oxides• Catalysts
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Compaction is used throughout a variety of industries, to process all kinds of materials. Common applications include:
• Fertilizers• Chemicals• Detergents• Pigments• Minerals• Polymers• Oxides• Catalysts• Clays
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Compaction is used throughout a variety of industries, to process all kinds of materials. Common applications include:
• Fertilizers• Chemicals• Detergents• Pigments• Minerals• Polymers• Oxides• Catalysts• Clays• And more…
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How it Works
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Compaction granulation is carried out in a compactor, or double roll press.
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Material fines are fed between two counter rotating rolls. The rolls use extreme pressure to press the fines into a form.
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Material fines are fed between two counter rotating rolls. The rolls use extreme pressure to press the fines into a form.
This form is then broken up into the desired granule size.
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After this, the granules typically go through a screening process, where on-size material is separated out to move on to packaging or transport, and under-size and over-size are put back into the process as recycle, with over-size first being broken down.
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Granules are sometimes conditioned after compaction, in order to help reduce the opportunity for attrition.
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This can be carried out in paddle mixer, or a coating/conditioning drum. This step can also accommodate the addition of desirable additives, such as anti-caking additives and the like.
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Simplified Compaction Diagram1. Raw feed2. Mill3. Surge Hopper4. Humidificator Mixer5. Protecting Screen6. Compactor7. Flake Breaker8. Granulators9. Screen10. Polishing Drum11. Screen12. Screw for Recycles
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While many factors affect the success of the compaction process, two key factors that can influence this are:
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While many factors affect the success of the compaction process, two key factors that can influence this are:
• The Feeding Mechanism
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While many factors affect the success of the compaction process, two key factors that can influence this are:
• The Feeding Mechanism• Particle Size Distribution
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The Feeding Mechanism
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An even, steady pressure across the face of the rolls is necessary.
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An even, steady pressure across the face of the rolls is necessary.
Uneven pressure is often the result of an inadequate feeding system.
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Particle SizeDistribution
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Variance in particle size distribution for the material feedstock will produce the best results. This is because smaller particles will fill in the spaces between larger ones.
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In addition, a particle size distribution that is either too fine or too coarse, can cause processing problems or produce poor end product results.
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ConclusionWhile not all materials will respond well to the compaction granulation process, for those that do, this pressure agglomeration technique is a cost-effective means of transforming material fines into an easy to use, granular product.
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has been a leader in the agglomeration industry since the 1950s, helping customers solve material problems through process & product development, feasibility testing, and high-quality, custom agglomeration equipment.
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