- Answer: In the fertilizer production industry, choosing the right granulator is crucial to determining the quality of the finished product and production efficiency. Common granulation equipment and their characteristics are as follows:
- Disc Granulator: Employs ambient temperature granulation and one-step forming technology. The equipment features special rubber or stainless steel liners for automatic scraping. Its simple structure makes it suitable for small to medium-sized or intermittent continuous production.
- Flat Die Pelleting and Spheronizer: Primarily used in (bio)organic fertilizer production. The cylindrical granules extruded from the flat die can be processed into spherical shapes in one step using a spheronizer, eliminating the need for secondary polishing.
- Rotary Drum Granulator: Agglomerates materials through drum rotation, resulting in high output. It is the preferred choice for large-scale continuous compound fertilizer production lines.
- Roller Extrusion Granulator: Utilizes high pressure to extrude dry powder into shape, eliminating the need for a drying process and significantly saving energy. It is suitable for moisture-sensitive materials.
- New Type Organic Fertilizer Granulator / Wet Mixing Tooth Granulator: Utilizes high-speed mixing to coagulate materials under the action of a binder, suitable for high-viscosity organic materials.
- Selection Recommendations:
- Consider the raw material: For high-moisture materials, choose disc or drum granulators; for heat-sensitive or dry powder materials, choose roller extrusion.
- Consider the output: Disc granulators are recommended for small factories; drum granulators are recommended for large-scale industrial production.
- Consider the appearance: For round and aesthetically pleasing granules, it is recommended to add a rounding machine; for high-strength granules, choose extrusion equipment.
- Consider the budget: Comprehensively evaluate the purchase cost and subsequent energy consumption (such as drying costs). Material testing is necessary to obtain the most accurate customized selection solution.
