The new type organic fertilizer granulator (also known as a stirring-tooth granulator) is a wet-process granulation device that utilizes high-speed mechanical agitation and the resulting aerodynamic forces to continuously mix, granulate, spheroidize, and densify fine powdery materials within the machine.
This granulator consists of components such as a transmission, a rotor, a cylindrical body, and a frame. The rotor assembly comprises a shaft, stirring teeth, and stirring-tooth heads; the shaft is divided into three sections: a mixing section, a granulation section, and a polishing section. The stirring teeth, which serve as the active components for compacting particles and the granulating liquid, are rigidly connected to the main shaft.
The core principle of the new type organic fertilizer granulator involves applying mechanical force to the material via high-speed rotating stirring teeth, which, combined with the action of a binder, forms granules. The specific workflow is as follows:
Feeding and Mixing Stage: Pre-treated material (with moisture content generally controlled between 20% and 40%) enters the rotating cylinder through the feed inlet. Inside the cylinder, the material comes into contact with the stirring teeth and begins to mix.
Shearing and Extrusion Stage: The high-speed rotating stirring teeth (with adjustable speed) subject the material to intense shearing, mixing, and kneading. This ensures the uniform distribution of binders or moisture and causes the material to undergo initial agglomeration and nucleation. The stirring teeth are made of hard, wear-resistant materials, featuring alloy tips to ensure durability during high-speed operation.
Rolling and Granulation Stage: Driven by centrifugal force, the material rolls continuously along the cylinder wall, with fine powder adhering to the surfaces of existing granules. Throughout this process, the material undergoes continuous mixing, granulation, spheronization, and densification.
Screening and Discharge Stage: The formed granules are discharged through the outlet; the finished product consists of spherical granules with a sphericity of ≥0.7. Granule diameter can be adjusted by varying the material feed rate and the main shaft rotation speed——generally, a lower feed rate and higher rotation speed result in smaller granules, and vice versa.
The granulation rate typically reaches 85%-95% or higher. The finished granules are spherical (sphericity da'y 0.7), dense, and smooth-surfaced, with sufficient strength to withstand subsequent drying, storage, and transport. The granule diameter is adjustable between 0.3 mm and 5 mm, making the equipment suitable for various applications.
The granules are spherical, and the organic matter content can reach up to 100%, enabling the granulation of pure organic materials. By leveraging the tendency of organic particles to interlock and grow, the process generally requires no additional binders.
It is particularly effective at processing materials with high fiber and moisture content (such as crop stalks, distillery grains, spent mushroom substrate, herbal residue, and manure). These materials can be granulated directly after fermentation, yielding excellent results with moisture contents ranging from 20% to 40%.
The new type organic fertilizer granulator has a wide range of applications and is particularly suitable for granulating lightweight, fine-powder materials. The finer the basic particles of the material, the higher the sphericity and the better the quality of the resulting granules.
Livestock and poultry manure: Fermented materials such as chicken, pig, and cattle manure
Agricultural waste: Crop stalks, distillers' grains, medicinal herb residues, mushroom substrate residues, soybean dregs, etc.
Humic acid materials: Peat, lignite, weathered coal, etc.
Municipal waste: Municipal sludge, food waste residues, fermented domestic waste, etc.
Industrial raw materials: Carbon black, white carbon black (silica), clay, kaolin, urea-formaldehyde molding powder, molecular sieves, calcium carbonate, dicalcium phosphate, etc.
Fertilizer processing: Granulation for the production of organic fertilizers, bio-organic fertilizers, and organic-inorganic compound fertilizers
Feed production: Granulation processing of feed raw materials
Chemical industry: Granulation of various powdered materials
The new type organic fertilizer granulator can operate as a standalone unit or be integrated with upstream and downstream equipment to form a complete organic fertilizer production line.
Crusher (e.g., semi-wet material crusher)
Ball shaping machine (rounding machine)
Huaqiang Heavy Industry offers comprehensive production line solutions covering everything from raw material crushing, mixing, and wet granulation to drying, cooling, and final product packaging. The entire production line features a high degree of automation and a seamless, continuous workflow, transforming raw materials into finished products in one integrated process.
1. Proven Technical Expertise —— Zhengzhou Huaqiang Heavy Industry has long specialized in organic fertilizer equipment, boasting mature process systems and delivering stable, reliable performance.
2. Comprehensive Product Range ——Available in various standard specifications with customization options, suitable for operations ranging from family farms to large-scale organic fertilizer plants.
3. Superior Granule Quality —— Solutions — Offers end-to-end solutions—from raw materials to finished product—for annual capacities ranging from 10,000 to 500,000 tons, catering to both new plant construction and facility upgrades.
5. Comprehensive Service Support —— Numerous client references available for on-site visits; provides full-process services including equipment selection, production line design, installation and commissioning, and after-sales maintenance.
| Model | Capacity (t/h) |
Output Granules Size (mm) |
Motor Power (Kw) |
Outside Dimension (mm) |
| YSL-60 | 1-2 | 1-5 | 37 | 3700*1800*1050 |
| YSL-80 | 2-4 | 1-5 | 45 | 3700*2100*1300 |
| YSL-100 | 3-5 | 1-5 | 55 | 3750*2500*1500 |
| YSL-120 | 4-7 | 1-5 | 75 | 4900*2950*1900 |
| YSL-150 | 5-8 | 1-5 | 90 | 5000*3300*2150 |
