Double roller press granulators are versatile machines widely used across multiple industries to process various raw materials into compact, easy-to-handle granules. Here’s a breakdown of the materials they can handle:
Fertilizer Materials
- Organic Fertilizer Raw Materials
Livestock Manure: After pre-treatment (like drying or fermentation), materials such as chicken manure—rich in nitrogen, phosphorus, and potassium—can be compressed into organic fertilizer pellets. These granules are easier to store, transport, and apply compared to raw manure.
Crop Straw: Crushed straw mixed with nutrients (such as minerals or microbial agents) can be processed into organic-inorganic compound fertilizer pellets. This not only tackles straw disposal challenges but also enhances soil fertility.
- Inorganic Fertilizer Raw Materials
Powdered chemical fertilizers like urea, monoammonium phosphate, and potassium chloride are blended in specific ratios and compressed into uniform compound fertilizer granules. These pellets offer high durability and controlled-release properties, ensuring crops receive nutrients steadily throughout their growth stages.
Feed Materials
- Animal Protein-Based Materials
Ingredients such as fish meal or meat-and-bone meal are mixed with other feed components (like grains or vitamins) and pressed into dense, nutrient-rich feed pellets. The double roller press granulator’s compression increases feed density, improving storage efficiency and reducing transportation costs.
2.Plant Protein-Based Materials
Soybean meal, cottonseed meal, and similar plant-derived proteins are processed into feed pellets tailored for different animals (such as poultry, livestock, or aquaculture). Additives like vitamins or minerals can be incorporated during granulation to meet specific dietary needs.
Other Materials
In the chemical industry, powdered materials (such as certain catalysts or additives) are granulated to improve handling stability and performance. For example, powdered catalysts converted into granules show better operational efficiency and reduced dust during use.
The ability to process such a wide range of materials makes double roller press granulators indispensable in agriculture, animal feed production, and chemical manufacturing. They transform raw, often hard-to-manage powders or organic waste into functional, user-friendly products—boosting efficiency and sustainability across industries.