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首页> 外文会议>5th Eighth Annual Technical Meeting of the Sugar Industry Technologists, 5th, May 9-12, 1999, Estoril, Portugal >The Use of Reynolds Number (Nr) as a Design Tool for Improving the Performance of Phosphatation Clarifiers
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The Use of Reynolds Number (Nr) as a Design Tool for Improving the Performance of Phosphatation Clarifiers

机译：使用雷诺数（Nr）作为设计工具来提高磷光澄清器的性能

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摘要

Refining of raw sugar requires a sequential series of separations to achieve the finished product. Amongst them is phosphatation clarification, which requires these specific conditions to achieve the best results; 1. good separation of all the insoluble solids. 2. chemical addition at the right location. 3. temperature. Deviation from any of these conditions will result in quality problems. A critical part of the process is the injection of the polymer flocculant and the formation of secondary floccs. If the secondary floccs are being subjected to excessive shearing forces, caused by turbulence, poor performance will follow. By definition, Reynolds number, N_R, is an index of the stability of turbulence in a moving fluid, (ref. #1) Turbulence usually sets in at some critical value of N_R Results collected from a number of refineries suggest there is a correlation between the Reynolds number, N and performance in the piping from the reaction tank to the clarifier. This can impact the performance of the clarifier. This paper will summarize Lantic's experience along with data from other refineries using phosphatation clarification.
机译：精制原糖需要进行一系列连续分离才能获得最终产品。其中之一是磷酸化澄清，这需要这些特定条件才能达到最佳效果。 1.很好地分离所有不溶性固体。 2.在正确的位置添加化学药品。 3.温度。偏离任何这些条件都将导致质量问题。该过程的关键部分是聚合物絮凝剂的注入和次级絮凝物的形成。如果次级絮凝物由于湍流而承受过大的剪切力，则会导致性能下降。根据定义，雷诺数N_R是流动流体中湍流稳定性的指标，（参考编号1）湍流通常设定为N_R的某个临界值。从许多炼油厂收集的结果表明，两者之间存在相关性。从反应罐到澄清池的管道中的雷诺数，N和性能。这会影响澄清器的性能。本文将使用磷酸盐净化技术总结Lantic的经验以及其他炼油厂的数据。

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