Other design challenges imposed by large Flotation Equipment are froth travel distance and froth residence time. Vertical baffles decrease the froth's residence time and radial launders decrease froth transit time. Froth crowders for flotation cells direct the slurry flow from the centre of the flotation cell to the periphery launder, which decreases froth residence time. All design modifications increase the probability of bubbleparticle aggregates surviving the froth phase.
The theory of froth flotation is complex and is not completely understood. This fact has been brought many monitoring challenges in a coal processing plant. To solve those challenges, it is important to understand the effect of different parameters on the fine particle separation, and control flotation performance for a particular system. This study is going to indicate the effect of various parameters (particle characteristics and hydrodynamic conditions) on coal flotation responses (flotation rate constant and recovery) by different modeling techniques.  
Zhejiang golden machinery factory has industrial most advanced and complete inspection equipment, which can ensure the quality of the products. Click Flotation Equipment: http://www.goldenmachine.net/product/flotation-equipment/ to see more details.