What is the granulation method of fertilizer

The granulation method of fertilizers is to process bulk fertilizers into granular form through a series of processes for storage, transportation, and application. The common methods of fertilizer granulation mainly include wet granulation and dry granulation, each of which includes multiple specific methods.

wet granulation

• Squeezing granulation method: Using extrusion force to extrude the mixed wet raw materials through a mold. Suitable for raw materials with certain plasticity, such as organic fertilizers, compound fertilizers, etc.
• Rolling ball granulation method: The mixed raw materials are rolled by a drum machine to form granules. Suitable for some high humidity raw materials, such as urea, ammonium nitrate, etc.

Disc Pelletizer

Compound fertilizer drum granulator

• Disc granulation method: After all the raw materials are mixed, they enter the granulation device (an inclined disc), and the disc rotates to agglomerate the materials into balls. This method has simple equipment and low investment, but is only suitable for small-scale production, and the formula is limited, requiring viscous materials.
• Drum granulation method (also known as rotary drum granulation): Similar to disc granulation, but the granulation device is a tilted drum with higher efficiency, and auxiliary means such as steam can be used to improve granulation efficiency.

Disc Pelletizer

Rotary Drum Granulator

Dry granulation

Dry granulation is the process of directly forming bulk fertilizers into granules through mechanical force or pressure, without the need to add water or other solvents.

In actual production, the choice of granulation method needs to be comprehensively considered based on factors such as the characteristics of raw materials, production scale, equipment conditions, and market demand. At the same time, it is necessary to carefully design the process flow to ensure the efficiency, stability, and safety of the fertilizer granulation process.

Introduction to Fude Machinery Manufacturer

• The production equipment includes: fermentation raking machine, dryer, granulator, crusher, mixer, round throwing machine, organic fertilizer production line, etc. The company will continue to adhere to the business philosophy of “quality first, customer first” and provide higher quality metal equipment solutions for global customers.
• Since its establishment in 2015, Fude Machinery has been committed to providing high-quality and high-performance wood equipment solutions to global customers. With advanced production technology, strict quality control, and continuous innovative research and development capabilities, we have received customer satisfaction praise.