The slow-release NPK fertilizer aims to extend the release time of fertilizer nutrients and improve fertilizer utilization efficiency, and its production line equipment configuration has unique features.
The raw material processing equipment is similar to conventional production lines, but pays more attention to the precision of raw material pretreatment. Using ultrafine fertilizer pulverizers to refine raw materials for better participation in subsequent reactions and coating processes.
The measurement and batching process requires extremely high precision, using high-precision electronic measurement systems to accurately weigh nitrogen, phosphorus, potassium, and various additives. By using an automated control system, ensure that the proportion of each ingredient strictly meets the formula requirements for slow-release fertilizers.
The mixing equipment uses a strong convection mixer, which can fully mix various raw materials in strong convection motion, ensuring uniform distribution of fertilizer components and laying the foundation for subsequent slow-release effects.
Granulation equipment is one of the key components of production lines, often using fluidized bed granulators. This fertilizer granulator aggregates materials into granules in a fluidized state through hot air, and can also add special slow-release agents during the granulation process to form a special structure inside the fertilizer granules, achieving slow release of nutrients.
The drying equipment adopts a low-temperature and low-speed drying method to avoid damage to the structure of slow-release agents and fertilizers caused by high temperatures. Using a mesh belt dryer can evenly dry fertilizer particles, ensuring consistent dryness.
The cooling equipment adopts a mild air cooling method to slowly cool down the fertilizer particles, which helps to maintain the stable slow-release structure inside the particles.
The screening equipment uses multi-layer vibrating screens to accurately screen out slow-release fertilizer particles that meet the particle size requirements, ensuring consistent product quality.
The coating equipment is the core feature of the slow-release NPK fertilizer production line. Using a specialized slow-release coating machine, the coating material with slow-release function is evenly wrapped around the surface of fertilizer particles. The coating material can be high molecular weight polymers, etc. By controlling the coating thickness and material properties, the release rate of fertilizer nutrients can be precisely adjusted.
The packaging equipment adopts moisture-proof and oxidation resistant packaging materials, such as aluminum foil bags, to ensure that the slow-release performance of slow-release fertilizers is not affected by external environment during storage and transportation. The automatic packaging system can accurately measure and package fertilizers, improving production efficiency.
The equipment configuration of the slow-release NPK fertilizer production line revolves around achieving the slow-release function of fertilizers. Through a series of special equipment and processes, products that can meet the long-term and high-efficiency needs of modern agriculture for fertilizers are produced.