The double roller granulator is a kind of granulation equipment with wide adaptability to raw materials. The double roller granulator is the key equipment for the granulation of the npk production line, and it can also be used for the production of organic fertilizers. Our twin roll granulator adopts dry granulation method. You can make granular fertilizers at room temperature without drying. You can use it to form an efficient fertilizer production line with our other fertilizer equipment.
Both double roller granulator and rotary drum granulator are granulation equipment. It is suitable for the production of high, medium and low concentration compound fertilizers. However, there are some differences between the double roller granulator and the drum granulator.
1. Different granulation methods.
The double roller granulator adopts the dry granulation method, while the rotary drum granulator is a wet granulator. This means that you don’t need to use other equipment to dry the product after granulating with the double roller fertilizer granulator. The granulator consumes less power and produces no pollution. In addition, it requires the moisture content of the raw material to be only 5%-10%. And relatively dry fertilizer granules can be obtained at normal temperature. But if you use a rotary granulator to make fertilizer granules, you need a drying cooler to dry them. You can save some money if you buy our granulator to produce compound fertilizer.
2. The working principle is different.
The structural design of the double roller granulator and the rotary drum granulator are different, so their working principles are also different. The rotary granulator uses the rotating motion of the drum to agglomerate the material particles into balls. The double-roller granulator uses mechanical pressure to process powdery materials into fertilizers of different shapes.
3. The shape of fertilizer particles can be different.
A rotary drum granulator can form the product into a roughly spherical shape. But the double roller granulator can produce fertilizer products in various shapes, such as pillow shape, rod shape, pellet shape, walnut shape, and square bar shape.