... (Nitrogen, Phosphorus and Potassium) compound fertilizer. Meanwhile, this dryer has incorporated granulating, drying, internal sieving, internal crushing, and ... form well-distributed curtain.2.Under the effect of pneumatic nozzle, the material slurry is sprayed into the drum ... sieving, the finished fertilizers enter into metering packaging system.4.Unqualified large particles are crushed again, and ...