尿素熔融喷浆造粒是近两年内复肥生产的新工艺。熔融尿素在造粒时以喷涂的方式与其他固体原料混合,在造粒过程中既是一种原料,又充当液相参与造粒,并提供一定的热量加热物料便于成球与烘干过程的进行。尿素熔融喷浆造粒的工艺比较简单,将固体尿素与水按一定比例混和并用蒸气熔融制成料浆,然后用泵将其送至造粒机造粒。系统采用计算机全自动计量控制以确保产品中养分含量的准确。 The urea melt spray granulation is a new process of compound fertilizer production in the past two years. During the granulation, the urea melt is mixed with other solid materials by spraying, which is not only a raw material but also a liquid phase during the granulation process, and provides some heat to heat the materials to facilitate the formation of the balls and the drying process . Urea melt spray granulation process is relatively simple, the solid urea and water by a certain percentage of mixing and steam melting of the slurry, and then sent to the granulator with a pump granulation. The system uses computer automatic metering control to ensure the accuracy of nutrient content in the product.