Mixing Drum Granulator
We offer advanced Mixing Drum Granulators, also known as Rotary Drum Granulators. These granulators are designed to transform powdered materials into high-quality, uniform granules for fertilizer production. These machines can make up to 70% of the fertilizer, which makes them great for making a lot of fertilizers at once. Our Mixing Drum Granulators are designed to be efficient, durable, and versatile. They ensure consistent output and support sustainable agriculture, which helps boost crop yields worldwide.
Mixing Drum Granulator Definition
A mixing drum granulator is a machine that mixes and grinds materials to make them into small, round pieces. These machines are used in many industries, such as making fertilizer, pharmaceuticals, chemicals, and food.
Mixing Drum Granulator Specifications
| Model | TDJZ-600 | TDJZ-800 | TDJZ-1000 | TDJZ-1200 | TDJZ-1500 |
| Installation Angle | 2°-2.5° | 2°-2.5° | 2°-2.5° | 2°-2.5° | 2°-2.5° |
| Capacity（t/h） | 1-1.5 | 1.5-2.5 | 2-4 | 4-6 | 6-8 |
| Total Power（kw） | 37 | 55 | 75 | 90 | 110 |
| Moisture Of Feeding Material | 35%-45% | 35%-45% | 35%-45% | 35%-45% | 35%-45% |
| Size Of Feeding Material （mesh） | 50 | 50 | 50 | 50 | 50 |
| Dimensions | 4100*1600*1150 | 4250*1850*1300 | 4700*2350*1600 | 4900*2550*1800 | 5500*2800*2000 |
Working Principle of Mixing Drum Granulator
The mixing drum granulators work by using a process called wet granulation, which is also called tumble-growth, agitation, or non-pressure agglomeration. This process uses motion and a liquid binder to make granules.
Mechanical Operation
The drum granulator uses a mechanical drive system. The main motor drives a belt and pulleys. It sends power to the drive shaft through a reducer. The gears on the drive shaft connect to the large gears on the drum body, which makes the drum rotate. The drum is positioned at a slight angle (typically 2-5°) to help move the material and release the granules from the outlet.
Material Processing and Granule Formation
Initial Material Feeding: Raw materials enter the drum through the inlet via a conveyor system and achieve better mixing and granulation effects through the continuous rotation of the drum.
Tumbling Action: As the drum rotates, materials tumble within the cylinder, creating a rolling motion that is essential for granulation. This rolling action allows particles to roll against each other and against the drum’s interior sides.
Binder Introduction: At predetermined locations within the drum, liquid binder is introduced through a spray system. The binder can be introduced as atomized spray, steam, or droplets, depending on the specific application requirements.
Granule Development: The rolling action combined with the stickiness from the binder causes fine particles to collect together and form larger particles. These particles continue to pick up additional fines and binder as they tumble in the material bed, causing them to densify and develop additional layers through a phenomenon known as coalescence.
Granulation Methods
Wet Type Granulation: The drum can operate using wet granulation where steam and ammonia gas are admitted, or phosphoric acid, nitrogen solution, or phosphoric acid slurry are added to complete chemical reactions with heat supply within the cylinder.
Cold Granulation: Alternatively, the drum can perform cold granulation of compound materials using minimal moisture supplementation.
Centrifugal Force Action: The rotating cylinder generates centrifugal force that helps powders come together and form pellets. Under the action of extrusion pressure and rolling motion, powder materials transform into particles.
Critical Process Elements
Rolling Motion: Achieving proper rolling action in the material bed is crucial for adequate granulation, as particles must roll in a layering effect similar to rolling a snowball.
Pressure and Temperature: Materials are agglomerated into balls through the rotating movement of the cylinder, which generates extrusion pressure between particles at specific humidity and temperature conditions.
Spray System Design: The binder addition system is complex and influenced by factors such as how the binder is introduced, at what points in the drum it’s added, and the binder feed rate at each location.
This continuous process of tumbling, binder application, and particle coalescence transforms raw powdered materials into uniform granules through mechanical action and controlled moisture conditions.
Mixing Drum Granulator Price
The cost of our Mixing Drum Granulators varies based on capacity and customization:
| Capacity (t/h) | Cost Range | Example Costs |
|---|---|---|
| 1-3 | $50,000-$80,000 | $50,000 for a 1 t/h model |
| 3-5 | $80,000-$100,000 | $90,000 for a 3 t/h model |
| 5-8 | $100,000-$120,000 | $110,000 for a 5 t/h model |
| 8-15 | $120,000-$150,000 | $130,000 for a 10 t/h model |
| 15-30 | $150,000-$200,000 | $180,000 for a 15 t/h model |
Contact Us
Ready to elevate your fertilizer production? Contact us today to discuss your custom solution.