Industry Info

Working principle and advantages of disc granulator

2025/04/14
 The disc granulator is a kind of inclined disc granulating equipment, which is not only widely used but also efficient in organic fertilizer production. It is a commonly used granulating equipment and an important member of the organic fertilizer production line. Its principle is to compress and granulate powdery or granular raw materials by means of the force of rotating discs.

The disc granulator is mainly composed of a motor, reducer, and other parts. Its working principle is a clever combination of mechanics and chemistry. The motor drives the reducer to work, and then the reducer drives the whole disc to rotate at a specific speed. At this point, centrifugal force causes the raw materials to move to the edge of the disc, while friction drives the raw materials to shake back and forth along the inner wall of the disc. During the movement of the raw materials, proper adhesive is sprayed to make the raw material particles begin to aggregate. As continue to rotate, these small particles will roll and collide continuously, absorb new raw materials and gradually grow into larger particles. By adjusting the speed, the movement speed and residence time of the raw materials on the disc can be changed, thus controlling the particle size. Adjusting the angle of the disc will affect the movement trajectory of the raw materials and affect the shape and uniformity of the granules.

In the production process of organic fertilizer, the disc granulator has many advantages:

1. The granules produced by it have relatively regular shapes, most of which are spherical,This is different from the double roller press granulator. These spherical granules can distribute evenly in the soil when used, having a large contact area with the soil, which is beneficial for slow release of nutrients and can provide sustained nutrient support for crops.

2. Secondly, the disc granulator has strong adaptability to raw materials. Whether it is animal manure, crop straw fermentation materials, or some mixed materials, it can well carry out granulation operation.

3. In addition, the disc granulator is simple to operate, and has relatively low technical requirements for operators.

4. Finally, by adjusting the rotation speed of the disc, the tilt angle, and other parameters, the size and shape of the granules can be flexibly controlled to meet the needs of different users. With the changes in the agricultural market and the progress of science and technology, the disc granulator will also be constantly improved and improved, achieving excellent results in fertilizer production and agricultural development.