Abstract

An empirical scale-up model of the pan-coating process for controlled-release urea fertilizer (CRUF) was novel performed via a pan-coating process using the biodegradable polymer solution. The similarities in the geometry, kinetics, dynamics, and thermodynamics during the scaling-up of the pan-coating process were analyzed. The dimensionless numbers and a dimensionless number equation were determined and derived, respectively. The thickness of the formed coating related almost to the air velocity and the pan speed. This model showed the significant applications in the design and optimization of industrial particle-coating systems.

中文翻译：

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尿素控释肥生产锅包衣工艺的经验放大模型

摘要

控释尿素肥料 (CRUF) 的锅包衣工艺的经验放大模型是通过使用可生物降解聚合物溶液的锅包衣工艺进行的。分析了在扩大锅包衣工艺过程中几何学、动力学、动力学和热力学的相似性。分别确定和导出无量纲数和无量纲数方程。形成的涂层的厚度几乎与空气速度和锅速度有关。该模型显示了在工业颗粒涂层系统的设计和优化中的重要应用。