部分料浆转鼓造粒与熔体塔式造粒的工艺比较  

Comparison of Partial Slurry Drum Granulation Process and Melt Prilling Process

作　　者：孟亚利[1] 吴爱国[1] 

机构地区：[1]上海化工研究院,上海200062

出　　处：《化肥工业》2016年第4期11-14,53,共5页Chemical Fertilizer Industry

摘　　要：介绍了部分料浆转鼓造粒工艺和熔体塔式造粒工艺的成粒原理和生产流程,以及尿素熔融和尿液输送过程中控制缩二脲含量的方法。熔体塔式造粒装置投资较大,产品无需进行干燥,单位产品能耗较低;部分料浆转鼓造粒装置投资较小,产品需进行干燥,单位产品能耗较高。前者适合生产高氮复混肥,而后者适合生产w(N)≤20%的复混肥,2种工艺在产品规格上互为补充,企业应结合自身情况、资金状况及目标销售市场要求选择合适的工艺路线。An introduction is given to granulation principle and production flow of partial slurry drum granulation process and melt prilling process, and control method of biuret content in urea melting and urea melt conveying process. The investment of melt prilling tower device is larger, its product does not need dry, and energy consumption per unit product is smaller; while the investment of partial slurry drum granulation device is smaller, but its product needs dry, and energy consumption per unit product is higher. The former is suitable for production of high nitrogen fertilizer, and the latter is suitable for production of low or middle content of nitrogen fertilizer [ w （N） ≤ 20% ], these two technologies complement each other in product specification. Enterprises should select appropriate process according to its own circumstance, capital position and requirement of target sales market.

关 键 词：部分料浆转鼓造粒 熔体塔式造粒 比较 

分 类 号：TQ444.5[化学工程—化学肥料工业]