In the wave of green development in modern agriculture, organic fertilizer has become crucial for improving soil structure and enhancing crop quality. As a core piece of equipment in organic fertilizer production lines, the ring die granulator, with its high-efficiency granulation capability and stable performance, has become the mainstream choice in fertilizer processing. It processes loose organic raw materials into granular fertilizer through a specific mechanical structure, facilitating storage and transportation while improving fertilizer utilization and promoting the large-scale development of the organic fertilizer industry.
The core working principle of the ring die granulator is based on extrusion granulation technology. The equipment mainly consists of a ring die, pressure rollers, a feeding device, and a transmission system. During operation, fermented and pulverized organic raw materials enter the granulation chamber through the feed inlet. Under the extrusion action of the pressure rollers, the raw materials are forcibly pressed into the die holes on the ring die. The raw materials are subjected to extrusion, shearing, and friction within the die holes, gradually forming the granules and extruding them from the other end of the die holes. They are then cut into uniform particles by a cutter, ultimately completing the granulation process. This extrusion granulation method does not require the addition of excessive binders, maximizing the retention of nutrients in the organic raw materials and aligning with the concept of green production.
In organic fertilizer production, ring die granulators offer significant advantages. They are suitable for a wide range of raw materials, including organic materials such as livestock manure, straw, and humus, as well as some inorganic fertilizer raw materials, achieving efficient granulation. The granulated fertilizer particles have high density and strength, are less prone to clumping, and are easy to transport over long distances and apply in the field. Simultaneously, the equipment boasts a high degree of automation, enabling continuous and stable operation, with production efficiency far exceeding traditional granulation equipment, meeting the needs of large-scale production. Furthermore, the particle size of ring die granulators can be adjusted by changing ring dies of different apertures, adapting to different crops and fertilization scenarios.
With the continuous growth of agricultural demand for organic fertilizer, ring die granulators are undergoing continuous technological upgrades. New equipment is constantly optimized in terms of energy saving, wear resistance, and ease of operation, not only reducing production energy consumption and equipment wear but also improving granulation accuracy and stability through intelligent control. Today, ring die granulators are widely used in large-scale organic fertilizer plants, ecological farms, and other scenarios, becoming an important bridge connecting the resource utilization of organic waste with the development of green agriculture, providing strong support for sustainable agricultural development.
