Design, simulation, and performance of a draft tube spout fluid bed coating system for aerogel particles
Design, simulation, and performance of a draft tube spout fluid bed coating system for aerogel particles
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DOI：
10.1016/j.powtec.2009.12.009
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发表时间：
2010-04
影响因子：
5.2
通讯作者：
J. Plawsky;H. Littman;John D. Paccione
中科院分区：
文献类型：
--
作者：
J. Plawsky;H. Littman;John D. Paccione
设计了一种导流管喷动流化床涂覆系统，用于涂覆直径为0.1 - 2 mm的多孔气凝胶颗粒。其主要目的是确保仅颗粒的外表面被涂覆。颗粒的内部孔隙表面积需要保持开放，以保持其绝缘性能。本文讨论了设计，模拟和实验结果，我们得到的实际涂层的1- 3毫米的颗粒。使用传统的药物涂层Surelease®作为涂层材料，该系统成功地涂覆了颗粒，而涂层材料没有渗透到颗粒中。该设备可用于涂覆易碎的低密度颗粒以及高密度颗粒，并且非常适合于其他涂覆应用，包括制药工业中的那些。
A draft tube spout fluid bed coating system was designed to coat porous aerogel particles in a size range from 0.1 to 2mm in diameter. Its primary objective was to insure that just the outer surface of the particles was coated. The inner, pore surface area of the particles needed to remain open to preserve their insulating properties. This paper discusses the design, simulation, and experimental results we obtained on the actual coating of 1–3mm particles. A conventional, pharmaceutical coating, Surelease®, was used as the coating material and the system successfully coated the particles without penetration of the coating material into the particles. The apparatus can be used to coat friable, low density particles as well as those of high density and is well suited for other coating applications including those in the pharmaceutical industry.