タワーミルKD-3型機における分級部カラム内の網の役割 Roles of the Net in the Column on Tower Mill KD-3

この論文にアクセスする

この論文をさがす

著者

抄録

In fine grinding practice the efficiency of comminution depends largely on the behavior of freshly formed fine particles. In the case of a dry tower mill, fine particles are directly removed due to circulating air flow generated inside the mill, and immediately particles are classified in the classifying column. Especially in the Tower Mill KD - 3, in order to achieve a high classifying efficiency it is essential to reduce the air turbulence in the classifying column. Although it had been provided with the series of nets in the column of the KD - 3, the efficiency of nets was not clarified. In this study, by investigating the roles of nets, it was found that the air turbulence reduced and the classifying efficiency was improved by setting with the nets in the column. The results of these investigations using 4 type columns (CLA 0, CLA 1, CLA 2 and CLA 3) can be summarized as follows: (1) The weights of products in the cyclone increase using the no-nets classifying column (CLA 0), conversely the weights of products in the classifying column decrease. (2) The series of nets in the classifying column have no influence on the electric consumption of the blower motor and stirring motor. (3) The relationship between maximum and 50 % particle diameters was proportionally and by using the columns provided with nets (CLA 1, CLA 2 and CLA 3), the overflow products and underflow products were classified by the high classifying efficiency. (4) The maximum particle diameters of products were indicated by the corrected curve which is estimated by the assumption of Stoke's law. (5) The air flow rate of duct and the pressure drops of the column were approximately quadratic curve. And the maximum particle diameters of products in the cyclone were proportional to the pressure drops of the classifying column.

収録刊行物

  • 資源と素材 : 資源・素材学会誌 : journal of the Mining and Materials Processing Institute of Japan  

    資源と素材 : 資源・素材学会誌 : journal of the Mining and Materials Processing Institute of Japan 115(2), 83-88, 1999-02-25 

    The Mining and Materials Processing Institute of Japan

参考文献:  14件

参考文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

被引用文献:  4件

被引用文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

各種コード

  • NII論文ID(NAID)
    10002469101
  • NII書誌ID(NCID)
    AN10062646
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09161740
  • NDL 記事登録ID
    4662188
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-315
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
ページトップへ