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。
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.
提出了PTC消磁热敏电阻器生产过程中的几个关键质量控制点，主要包括原料控制、造粒压片控制、烧结工艺控制、电极控制等四方面。
The key quality control points in PTC degaussing thermistor production are presented, including the control over raw material, granulation and press, firing and electrode process.
介绍氨气提法尿素装置的造粒喷头、二段蒸发水离器及分解系统压力控制阀的改造情况。
The retrofit is given of the prilling basket, second stage evaporation separator and control valve for pressure in the hydrolysis system in a urea unit based on the ammonia stripping process.
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