Common Problems and Solutions in NPK Fertilizer Production Lines

During continuous operation, NPK fertilizer production line s are susceptible to factors such as raw material characteristics, equipment status, and process parameters, leading to various problems that directly impact product quality and production efficiency. The following are three typical problems and their solutions. Raw material pretreatment often faces the challenge of uneven particle size. Nitrogen, phosphorus, and potassium raw materials vary significantly in hardness and moisture content. For example, urea easily absorbs moisture and clumps, while phosphate slag has a high hardness. Using only a single crusher can result in significant particle size variation, leading to uneven nutrient distribution during subsequent mixing. The solution requires "classified crushing + precise screening": urea is crushed with a hammer crusher, while phosphate slag is crushed with a crusher. After crushing, the raw materials are graded using multiple vibrating screens to ensure a unif...