What kind of manufacturing mystery is hidden in a high-quality fertilizer pellet? In the fertilizer production workshop, the double roller press granulator is undoubtedly the absolute protagonist. It cooperates with equipment such as crushers and mixers to “press” powder raw materials into standard shapes, and uses hardcore technology to deliver nutrient vitality to farmlands around the world.
The prelude to the production process is opened by pretreatment equipment. The raw material chain crusher first grinds bulk nitrogen, phosphorus, potassium raw materials and organic fertilizer substrates into fine powder. The rotary screener machine then screens out materials with uniform particle size to ensure smooth subsequent granulation. The mixer, like an exquisite perfumer, stirs and blends various raw materials according to the formula to create a “base dough” with uniform composition.
The double roller press granulator officially takes the stage at this time. Two pressure rollers with special patterns on their surfaces rotate relative to each other, firmly extruding the mixed material conveyed, and instantly forming compact flaky material. Immediately afterwards, the built-in crushing device exerts force accurately, crushing the flaky material into irregular particles, and the shaping machine then “finishes” the particles, making each one round, full and uniform in size. This process does not require adding too many binders, which saves costs and maintains fertilizer purity.
The “growth” of pellets also requires the support of subsequent equipment. The dryer uses mild hot air to remove excess moisture from the pellets, and the cooler quickly cools them down to set their shape to avoid caking and deterioration. The finished product screening machine “checks” again, and the unqualified fine particles are sent back to the granulator for reprocessing, realizing zero waste of resources. Finally, the packaging machine quickly completes measurement and packaging, and bags of granular fertilizer embark on a journey to the fields.
From powder to pellets, the double roller press granulator interprets the power of technology with high efficiency and precision. It is suitable for the production of various fertilizers such as organic fertilizer and compound fertilizer, and can be seen in North American farms and Australian orchards. It is the coordinated operation of this granulation “artifact” and supporting equipment that makes nutrient delivery more efficient and lays a solid foundation for agricultural harvest.
