Developments of Inverse Circulating Fluidized Bed and Innovative Powder Coating Technologies

反循环流化床及创新粉末涂装技术的进展

• 批准号: 153467-2013
• 负责人: Zhu, Jingxu
• 金额: $ 3.72万
• 依托单位: University of Western Ontario
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=522528
• 关键词: Developments; Inverse; Circulating; Fluidized; Bed

While the original concept of conventional gas-solid fluidization has been "expended" to high-velocity fluidization (by increasing velocity), to liquid- and gas-liquid-solid fluidization (by changing the fluidization media), and to downer fluidization (by changing flow direction), the concept of inverse fluidization with liquid fluidizing downwards lighter particles (which would be otherwise floating) has only received limited attention. In particular, no study has been conducted for high-velocity inverse fluidization. This new inverse liquid-solid circulating fluidized bed, i-LSCFB, proposed as the first objective here, would have two columns interconnected at the two ends - a downer where both liquid and lighter-than-liquid particles flow currently downwards as the liquid velocity is higher than the particle terminal velocity, and a riser where liquid flow downwards while particles flowing upwards because the fluidization velocity is lower than the particle terminal velocity. Once developed, it will be the world's first time and can be immediately used in the fluidized bed wastewater treatment technology invented by the applicant - to significantly reduce its energy consumption, but can also be used in other areas especially for bio-dapplications.

虽然传统气固流化的原始概念已经“扩展”到高速流化（通过增加速度）、液体和气体-液-固流化（通过改变流化介质）以及向下流化（通过改变流动方向），但液体流化向下轻颗粒（否则会漂浮）的反流化概念只受到有限的关注。特别是对高速反流化还没有进行过研究。这种新型的反液固循环流化床，i-LSCFB，作为这里的第一个目标，将有两个在两端相互连接的柱——一个下行柱，液体和比液体轻的颗粒目前都向下流动，因为液体速度高于颗粒终端速度；一个上升柱，液体向下流动，颗粒向上流动，因为流化速度低于颗粒终端速度。一旦开发成功，它将是世界上第一次，可以立即应用于申请人发明的流化床废水处理技术-大大降低其能耗，但也可以用于其他领域，特别是生物应用。