According to the request of adopting advanced technology the main designing has such contents as below : ⑴ Designing the two-fluid nozzle that is based on the theory of air-atomize spraying .

根据采用先进施药技术的要求，本研究的设计内容主要有：⑴采用气液两相流喷雾技术，基于气力雾化原理，设计 双 流体 喷头；

Experiments show that the use of the two-fluid nozzle allows the production of MAP to be carried out and the use of the pipe reactor-fluid-bed granulator produces the required spherical DAP .

实验表明，应用 二 流体 喷嘴可以生产磷酸一铵，应用管式反应器&流化床造粒器可以生产出符合要求的球粒状磷酸二铵。