硫基氮磷钾补氮措施

Nitrogen-feeding Measures for S-NPK

由于S-NPK复合肥含氮量普遍较低,采取适当的措施补氮是全行业都面临的问题。介绍了S-NPK生产中的几种补氮工艺,如在返料中添尿素、在冷却机中喷涂尿液、设置喷尿筒喷涂尿液、二次喷涂尿液等,以及采取这些补氮措施的效果及其注意要点。

As the nitrogen content of S-NPK compound fertilizer is low,proper nitrogen-feeding measure is a common problem faced in the whole industry.Several processes for nitrogen-feeding during the production of S-NPK are outlined,such as adding urea into the recovery,coating urine in the cooler,providing urine ejector for coating of urine,secondary coating of urine,and also the effect and precautions for taking such nitrogen-feeding measures.