With urea as the main source of nitrogen, this Urea-based spray granulation system dissolves the urea by dissolving tank and mixes it with the fresh and returned materials by the way of whitewashing. In the production, the Urea-based spray granulation system is both the raw material and the liquid binder in the granulating process; the urea also provides certain heat quantity to heat the material and make the moisture reach the minimum standard so as to facilitate the process of balling and drying.
This technology makes the high-urea formula production originally hard to control very very simple and improve greatly the qualities—the output rises nearly 30% and the N content rises 23%-25%. In the meantime, the strength and smoothness of the Urea-based spray granulation system are also strengthened. This machine belongs to stainless steel and can reach the output of 20-200 thousand tons and the old production line can be ungraded and improved.
