ABSTRACT
The primary advantages of cyclone separators are simplicity in construction, design, and economy; since there are no moving parts, cyclones are relatively maintenance-free. There are two main classifications of cyclones based on efficiency: high-efficiency cyclones and high-throughput cyclones. For high-efficiency cyclones, the inlet gas velocity is higher thereby imparting a higher centrifugal force. For high-throughput cyclones, diameters are generally larger, efficiencies moderate to lower, and they can handle larger flow rates. The problem can be solved by designing a manifold so that all cyclones are uniformly fed with an equal volume of carrier gas and with a uniform concentration of particulates. Cyclones in series are used when separation with higher efficiency is required, higher flow rates of carrier gas are encountered, or when it is required to protect a smaller high efficiency cyclone from larger abrasive particles. The principal objective in designing cyclones is to create a vortex that will centrifuge the dust particles toward the wall and into the hopper.
