浮選槽底の攪拌に関する研究
副羽根によるもの
1959 年 75 巻 848 号 p. 86-92
詳細
1959 年 75 巻 848 号 p. 86-92
It is known that the function of auxiliary blades attaching to the impeller of Fahrenwald flotator is consisted in preventing settling of ore particles by applying agitation to the bottomof cell as subsidiary action assisting the main blade, while both the types of fluidization of are particles by auxiliary blades and the relationship of the main blade with auxiliary blades have not been made distinct.
From the point of view above, the authors inspected the flow patterns at the bottom of cell employing the apparatus composed of an agitator of batch-system and a model impeller. The results obtained are as follows:-
1) The critical agitating speed at which the are particles are fluidized is to be varied in response to the difference of geometrical condition in the relation between the cell and the impeller.
2) The critical setting-depth of impeller where the minimum critical speed is available under the same condition, is to be obtainable.
3) By lowering the critical depth with dish-like bottom to that of impeller installed and by applying bottom-agitation effectively with the main blade, the essential agitation is made possible by the minimum power.
