Influence of process variables on internal particle structure in spray fluidized bed agglomeration
Influence of process variables on internal particle structure in spray fluidized bed agglomeration
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DOI：
10.1016/j.powtec.2014.03.005
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发表时间：
2014-05
影响因子：
5.2
通讯作者：
M. Dadkhah;E. Tsotsas
中科院分区：
文献类型：
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作者：
M. Dadkhah;E. Tsotsas
为了提高和控制骨料的性能并能够预测最终产品的结构，必须在产品性能和操作条件之间建立联系。在不同的操作条件、入口气体温度和粘合剂浓度下，对喷雾流化床中使用不同的主要材料（无孔玻璃、多孔陶瓷）和HPMC（羟丙基甲基纤维素）作为粘合剂产生的团聚体进行了实验研究。利用X射线μ-计算机断层扫描（μ-CT）来评估团聚体的三维微观结构和团聚体中每个组成初级颗粒的空间分布。值和行为的评价形态描述符，并讨论了不同的团聚体。
In order to enhance and control properties of aggregates and be able to predict the structure of final products, it is essential to establish a link between the product properties and the operating conditions. Experimental investigations have been conducted on agglomerates produced in spray fluidized beds using different primary materials (non-porous glass, porous ceramic) and HPMC (hydroxyl-propyl-methyl-cellulose) as the binder, under varying operating conditions, inlet gas temperature and binder concentration. X-ray μ-computed tomography, μ-CT, was utilized to evaluate the three dimensional micro-structure of the agglomerates and spatial distribution of each constituent primary particle in the aggregate. Values and the behavior of evaluated morphological descriptors are presented and discussed for different agglomerates.