What is the production process of an NPK compound fertilizer production line?
As an indispensable high-efficiency fertilizer in agricultural production, the production process of NPK compound fertilizer is a precisely controlled and interconnected system engineering project. The core is the scientific proportioning of nitrogen (N), phosphorus (P), potassium (K), and various auxiliary materials, processed through multiple processes into a finished product with uniform granules and stable fertilizer efficacy. The entire NPK fertilizer production line balances efficiency and quality, adhering to strict process standards throughout to ensure balanced fertilizer nutrients that meet agricultural needs. The first step in production is raw material pretreatment and precise batching. Raw materials must meet standards. Nitrogen sources often use ammonium nitrate phosphate, phosphorus sources use highly water-soluble ammonium dihydrogen phosphate, and potassium sources use potassium sulfate or potassium chloride. Calcium compounds and other auxiliary materials can be adde...