The particulate fluidization characteristics of the mixture of two different mesh ranges consisting of non-spherical particles, which are made of some different mesh ranges of sand, are determined in a fluidized bed with water. 用河砂的几种筛分配制成多种粒径比的双粒度颗粒,在流化床设备中以水为流化介质考察了双粒度混合非球形颗粒的流化过程。
By considering the operation of CFB and the factors affecting gas bubble size, the principles that CFB controls bubble formation and growth and achieves particulate fluidization are illustrated. 论文从离心流化床的操作控制和气泡尺寸的影响因素两个方面阐明了离心流化床抑制气泡生成和长大、实现散式流态化(或控制流态化质量)的原理。
Agglomeration parameters and drag coefficients in agglomerate particulate fluidization of SiO_2 nanoparticles 纳米级SiO2聚团散式流化中聚团参数及曳力系数
A new process of continuous solvent extraction for production of montan wax based on particulate fluidization technology was developed. 流化萃取褐煤蜡新工艺将散式流态化技术用于液固萃取过程,以溶剂为动力,携带煤粒,实现流化连续萃取。
Particulate fluidization shows a structure of idealized fluidization of complete homogeneity. 散式流态化呈现出一种非常均匀的理想流态化结构。
Experimental results show that the minimum fluidization velocity has no effects on the rotation of stirrer blades, while particle B and D appear inherent particulate fluidization of kind A. 实验结果表明,搅拌桨的转动对最小流化速度没有影响,但使B类和D类颗粒呈现了A类颗粒特有的散式流态化现象。
Agglomerate particulate fluidization of primary nano-particles 原生纳米级颗粒的聚团散式流态化
Main frequency of the power spectrum is equal to the rotation frequency of stirrer blade, and the fluidized bed transits from the bubbling fluidization regime to the particulate fluidization regime with the increasing rotation speeds of stirrer blade. 当搅拌转速增加到一定程度后,压力脉动的功率谱主频等于搅拌桨转动频率,流化床从鼓泡流态化状态转化为散式流态化状态。
Numerical results show that the fluidization characteristic of cohesive nano-size particles in a fluidized bed is close to particulate fluidization. The bed expansion ratio is relatively high. Bubbles are very difficult to be generated. 模拟结果表明,纳米颗粒在流化床内流化特性呈现散式流化,床层膨胀率较高,床内很难有气泡生成。