Production method of high-quality granular water-soluble fertilizer

The invention relates to the technical field of granular water-soluble fertilizers and particularly relates to a production method of a high-quality granular water-soluble fertilizer. The production method comprises the following steps: spraying a mixture of prepared major elements including nitrogen, phosphorus, potassium and the like in a co-melting state through a spraying tower, so as to form liquid drops; and carrying out curing treatment on the liquid drops in a process of falling downward from the spraying tower, so as to form the high-quality granular water-soluble fertilizer with uniform texture, uniform nutrient distribution and full grains. The enrichment of impurities in the water-soluble fertilizer is prevented, the concentration of nitrogen, phosphorus and potassium elements in the water-soluble fertilizer is improved, and the quality of the water-soluble fertilizer is improved. 本发明涉及颗粒水溶肥技术领域，尤其是种高品质颗粒状水溶肥的生产方法，通过将配置好氮磷钾等大量元素的混合物，在共熔状态下，将其进行喷淋塔喷洒成液滴后，再经过从喷淋塔向下降落的过程得到固化处理，形成质地均匀，营养分布均匀，颗粒饱满的颗粒状水