The roller squeezing granulator is a commonly used organic fertilizer granulation equipment, which works by applying high pressure to the material through two relatively rotating rollers, causing the material to form particles under pressure. This granulation method is suitable for various organic materials, especially in the following situations where it performs outstandingly:
High humidity material granulation: The roller extrusion granulator is suitable for granulation materials with high moisture content, such as animal manure, sludge, kitchen waste, etc. that have undergone preliminary fermentation. These materials may be difficult to form stable particles under traditional granulation methods, but the roller extrusion granulator can effectively solve this problem through high pressure.
Organic and inorganic compound fertilizers: For the production of organic and inorganic compound fertilizers, a roller extrusion granulator can mix organic materials with inorganic fertilizers (such as phosphate fertilizer and potassium fertilizer) to form a comprehensive compound fertilizer.
Fine powder material granulation: The roller extrusion granulator is suitable for granulating fine powder materials, such as microbial agents, plant ash, etc., by high-pressure extrusion to form stable particles of fine powder materials, improving the stability and effectiveness of fertilizers.
Production of special shaped particles: The roller extrusion granulator can produce particles of different shapes and sizes by adjusting the shape and texture of the rollers, meeting the needs of different crops and fertilization methods.
Environmentally friendly fertilizer: The pressure and temperature during the production process of the roller extrusion granulator are relatively low, which can reduce the loss of active ingredients in the material. It is suitable for producing environmentally friendly organic fertilizers, maintaining the biological activity and nutritional components in the fertilizer.
Small batch production: For small-scale or experimental production, the flexibility and adjustability of the roller extrusion granulator make it an ideal choice, allowing for quick adjustment of particle size and shape as needed.
However, it should be noted that the roller extrusion granulator may encounter difficulties when processing certain high viscosity materials, such as some high sugar or high protein materials that are prone to adhesion under high pressure, affecting the granulation effect. In addition, for very hard materials such as inorganic fertilizers with high mineral content, the granulation effect of roller extrusion granulators may not be as good as other types of granulators, such as disc granulators or drum granulators.
In summary, the roller extrusion granulator plays an important role in the production of organic fertilizers due to its unique granulation principle and scope of application, especially in handling high moisture materials, fine powder materials, and compound fertilizers. When choosing a granulator, it is necessary to consider the specific material characteristics and production needs comprehensively to achieve the best granulation effect.