The core equipment of an NPK blending fertilizer production line is built around precise ingredient proportioning and uniform blending, covering the entire process from raw material handling, quantitative batching, homogeneous mixing, finished product processing, and packaging and warehousing. It is crucial for ensuring automated operation of the production line and accurate fertilizer ratio, and mainly includes the following types of NPK bulk blending machine:
1. Raw material pretreatment equipment: Vibrating screen (for removing lumps and impurities), vertical/horizontal crusher (to crush large single-component fertilizers to standard particle size), and supporting raw material silos (with moisture-proof and discharge devices), providing qualified raw materials for subsequent batching;
2. Precise batching equipment: Quantitative batching scales (electronic belt scales/screw batching scales), combined with an intelligent batching control system, accurately measure nitrogen, phosphorus, potassium, and additives according to the formula, controlling batching errors, which is the core of accurate proportioning;
3. Homogeneous blending equipment: Horizontal ribbon mixer/twin-shaft paddle mixer, the core machine of the production line, achieving uniform mixing of multiple materials without dead ends, preventing nutrient stratification in the finished product, and adapting to different blended fertilizer formula requirements;
4. Finished product processing equipment: Vibrating grading screen (to screen out unqualified particles and return them for reprocessing), and a cooling machine (to reduce temperature and prevent moisture absorption and caking) as needed, improving the uniformity and storage stability of the finished product particles;
5. Conveying and packaging equipment: Sealed screw conveyor/belt conveyor (fully sealed and moisture-proof, connecting various processes), fully automatic quantitative packaging machine (including weighing, bagging, and labeling), and supporting finished product conveying line, realizing rapid packaging and warehousing of finished products;
6. Supporting control system: Central control cabinet, integrating linkage control of various equipment, formula storage, and data recording functions, realizing automated and intelligent operation of the production line and reducing manual intervention.
