Development of anAccurate High-throughput Multiple-product Submicron Classification System using an Almost Rigidly Rotating Flow

使用几乎刚性旋转流开发精确的高通量多产品亚微米分类系统

• 批准号: 18560164
• 负责人: TSUCHIDA Yoichi
• 金额: $ 2.49万
• 依托单位: Nagoya Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18560164/
• 关键词: Centrifugal Classification; Wet-type Classification; Ttriple-product Classification; Almost Rigidly Rotating Flow; Internal Flow; Axisvm metric Flow; Stewartson Layer; Ekman Layer

With the aim of making practicable the wet-type centrifugal classification that can very accurately classify fine particles in an almost rigidly rotating flow produced between rigidly rotating housing-and core-walls, we have studied new high-throughput multiple-product classification systems. Consequently, we have drawn the following main conclusions.1. Concerning high throughput, : we have adopted new methods of supplying feed particles and collecting products in order to increase throughput, and consequently have obtained the following main results(1) In a new FOF-WCW type in which the Ekman transport is changed inward radialy between the housing and core cylindrical walls, fine particles are surely directed to a fine product, so that high accuracy is realized.(2) In the FOF-CWC type that is made by changing the coarse collection outlets and the water supply inlet each other, we can obtain the same accuracy as in the FOF-WCW type.(3) In the FOF-MCWCM type that is made by dividing the coarse collection outlets into outlets for coarse and medium products, triple-product classification is realized.2. Concerning continuous multiple-product classification, we have made a continuous triple-product classifier by continuously withdrawing coarse and medium products from the equators of the conventional batch-type double-stage classifier, and have numerically verified the validity. Furthermore, we have experimentally clarified the scaling law of the continuous classification performance

为了使湿式离心分级能够在刚性旋转的外壳壁和芯壁之间产生的几乎刚性旋转的流中非常准确地对细颗粒进行分级，我们研究了新的高通量多产品分级系统。因此，我们得出了以下主要结论.关于高吞吐量：为了提高生产量，我们采用了供给进料颗粒和收集产品的新方法，并因此获得了以下主要结果：（1）在新的FOF-WCW类型中，其中Ekman输送在壳体和芯筒壁之间径向向内改变，细颗粒确实被引导到细产品，从而实现了高精度。(2)在通过相互改变粗收集出口和供水入口而制成的FOF-CWC类型中，我们可以获得与FOF-WCW类型相同的精度。(3)在FOF-MCWCM类型中，通过将粗收集出口划分为粗产品出口和中产品出口，实现了三重产品分类.在连续多产品分级方面，我们将常规间歇式双级分级机的等径管中的粗、中产品连续抽出，制成连续三产品分级机，并进行了数值验证。此外，我们还通过实验阐明了连续分类性能的标度律

项目成果

準剛体回転流を用いた三産物分級機設計のための性能予測 -分級場の形状と流量が分級性能に及ぼす影響-

使用半刚性旋转流的三产品分类器设计的性能预测 - 分类场形状和流速对分类性能的影响 -

• 发表时间: 2006
• 期刊: 2006年度秋期研究発表会講演論文集
• 作者: Yoichi;TSUCHIDA;Koichi;NAKABAYASHI;Takayuki;SUZUKI;Tomohito;SUZUKI;Yoichi TSUCHIDA;土田陽一;土田陽一
• 通讯作者: 土田陽一

Prediction of Performance for the Design of a Triple-product Classifier Using an Almost Rigidly Rotating Flow-Influence of the Classifier Shape and Flow Rate on Classification Performance-(in Japanese)

使用几乎刚性旋转流的三产品分级机设计的性能预测-分级机形状和流量对分级性能的影响-（日语）

• 发表时间: 2006
• 作者: Yoichi;TSUCHIDA;Mikitaka;SABA
• 通讯作者: SABA

準剛体回転流を用いた高処理量型遠心分級方式の多産物化

利用半刚性旋转流进行高通量离心分级的多产品生产

• 发表时间: 2007
• 期刊: 粉体工学会誌 44
• 作者: Tatsutoshi;Maeda;土田 陽一;土田 陽一
• 通讯作者: 土田 陽一

準剛体回転流を用いた2段分級方式におけるスケール則

准刚性旋转流两级分类方法中的尺度定律

• 发表时间: 2008
• 作者: Yoichi;TSUCHIDA;Koichi;NAKABAYASHI;Takayuki;SUZUKI;Tomohito;SUZUKI;Yoichi TSUCHIDA;土田陽一;土田陽一;土田陽一;土田 陽一;土田 陽一;土田 陽一
• 通讯作者: 土田 陽一

Study on High Accuracy and Throughput of a Single-stage Classifier Using an Almost Rigidly Rotating Flow(in Japanese)

使用几乎刚性旋转流的单级分级机的高精度和吞吐量研究（日语）

• 发表时间: 2006
• 作者: Yoichi;TSUCHIDA;Takeshi;Ouchi
• 通讯作者: Ouchi