Pelletizer
Rotary Drum Granulator
Rotary Drum Granulator Overview
The rotary drum granulator is a common machine used in the manufacturing of compound fertilisers. This machine is capable of transforming powdered raw materials into specific shapes. It is employed in wet granulation, whereby water or steam is introduced into the barrel during the granulation process, making the base fertiliser wet. This enables the drum to rotate under liquid conditions, compressing and combining the material particles into granules of consistent shape and size. This rotary drum granulator can be utilised in cold granulation and hot granulation processes, facilitating the production of compound fertilisers with high, medium and low concentrations.
Product Details
Rotary Drum Granulator Main Technical Parameters
| Modle | Motor Power (kw) | Rotation Speed（r/min） | Capacity（t/h) | Roller Diameter (mm) | Roller length (mm) |
|---|---|---|---|---|---|
| HXRP-550 | 5.5 | 17 | 1-3 | 1200 | 4000 |
| HXRP-1100 | 11 | 17.5 | 3-5 | 1500 | 6000 |
| HXRP-1500 | 15 | 17.5 | 5-8 | 1800 | 7000 |
| HXRP-1850 | 18.5 | 1.5 | 8-15 | 2000 | 8000 |
| HXRP-3700 | 37 | 15-30 | 9.5 | 3200 | 10000 |
Working Principle of Rotary Drum Granulator
Rotary drum granulators work on the principle of wet granulation, i.e., the material is agglomerated by the introduction of water or steam. The basic fertiliser enters the drum in a wet state and then undergoes a chemical reaction in the presence of the liquid phase. The rotary motion of the drum is important as it both moves and pressurises the material particles, thereby causing them to coalesce into spherical particles. The drum is fitted with a special rubber sheet lining or acid-resistant stainless steel lining that prevents material build-up, thus eliminating the need for a conventional scraping device and ensuring a seamless and efficient granulation process. In addition, this configuration allows for automatic deslagging and deburring, thus ensuring uninterrupted and reliable operation. The entire process is environmentally friendly and produces no waste, making it the best choice for sustainable fertiliser production.
Features of Rotary Drum Granulator
Rotary drum granulators possess a number of noteworthy characteristics that serve to augment their operational efficacy and resilience.
1. The drum is furnished with a special rubber sheet liner or acid-resistant stainless steel liner, which ensures automatic scraping and deburring without the necessity for a conventional scraper unit. This design markedly diminishes the necessity for maintenance and augments the lifespan of the machine.
2. Furthermore, the pelletiser is designed to avoid the production of exhaust emissions during operation, in accordance with the principles of environmental sustainability.
3. Furthermore, the machine is renowned for its high granulation strength and superior granule appearance quality.
4. The granulator’s low energy consumption enhances efficiency, rendering it a cost-effective solution for large-scale fertiliser production.
5. Additionally, the rotary drum granulator is designed for straightforward operation and maintenance, which contributes to its reputation as a dependable and user-friendly choice for producers.