Air is either injected into the cell using a blower or drawn into the cell by the negative pressure created by the rotating impeller. For coal flotation, trough designs that permit open flow between cells along the bank are more common than cell to cell designs that are separated by individual s. Sign in to download full size image 11.13.
Flotation circuits are a common technology for the concentration of a broad range of minerals and wastewater treatments. Froth flotation is based on differences in the ability of air bubbles to adhere to specific mineral surfaces in a solid/liquid slurry.
The conditioned mineral slurry is then processed in flotation cells, which are essentially agitated tanks into which finely dispersed air bubbles are introduced. The desired hydrophobic mineral will then attach to the air bubbles and float to the top of the flotation cell, where it will be skimmed off as a mineral laden froth.
gt; Current state of technology and flotation equipment gt; Flotation cells have increased in size, cell layout, technology amp; design gt; Key factors: ore type, retention time, grind size, reagent regime gt; Change from Hough trough to tank cells up to 600m3
II/FLOTATION/Flotation Cell Design: Application of Fundamental Principles 1503 Figure 4 Typical flow patterns in a mechanical flotation cell . sure through the hollow shaft to the impeller region. Self induced air machines utilize a standpipe which shroudsthe drive shaft which is solid.
The design elements of column flotation make it unique among flotation techniques; considerations include froth washing effects, froth recovery, residence time, cross sectional area requirements, aspect ratio and column sparging. Primary contacting occurs among relatively quiescent
Froth flotation is a good example of an engineering system, in that the various important parameters are highly inter related, as shown in Figure 1. It is therefore important to take all of Chemistry Components Collectors Frothers Activators Depressants pH Equipment Components Cell Design Agitation Air Flow Cell Bank Configuration
TankCell flotation units are built to last, with components and electrical equipment selected for maximum operating life. For instance, Outotec rotors and stators have proven to be the most wear resistant available. The wide range of cell sizes enables a compact, economical, and efficient plant design without the risk of short circuiting, even