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这一讲着重介绍用浓缩磷酸经槽式预中和获得磷铵料浆 ,然后在转鼓氨化造粒机中造粒的机理和操作条件。同时阐述了转鼓氨化造粒机的构造以及用于生产 MAP、DAP和 NPK复合肥的条件。
This talk focuses on the use of concentrated phosphoric acid by slot pre-neutralization to obtain phosphorus ammonium slurry, and then granulation in the drum ammoniated granulator mechanism and operating conditions. The structure of the rotary drum ammoniation granulator as well as the conditions for the production of MAP, DAP and NPK compound fertilizers were also described.