Cyclone By Concept Engineering System

Cyclone


Cyclone Separators are normally used for the collection of the coarse
dust particles. In a cyclone separator, dusty air is introduced at the
top of a cyclone through the inlet pipe located tangentially to the
cylindrical portion. The gases then move downwards in a whirling
motion, forming a peripheral vortex and giving rise to centrifugal
forces, resulting in a throwing of the dust particles towards the
walls, which then move downwards into the hopper and are removed
through the draw-off pipe.


The gases, after reaching the end of the conical portion, change
direction and move upwards towards the outlet, forming an inner vortex.
In this upward movement of gases against gravity, more dust particles
are separated and fall into a conical hopper for subsequent removal.

Advantages





Stable pressure drop for a given gas flow
Constant efficiency for a given particulate condition
No moving parts; no replaceable filters
Ability to handle extremely high dust concentration
High temperature capability

Efficiency

On Industrial Coarse Particulate FD Cyclones are 95% to 98% efficient. 
Efficiency is a function of the physical parameters of the application
and the design parameters of the cyclone.  Cyclone efficiency increases
with:
Coarse particle size distribution
Higher product specific gravity
Lower gas density
A decrease in cyclone diameter (two smaller cyclones in parallel will
have a higher efficiency than one larger cyclone with an equal pressure
drop)
Smaller outlet diameter.  An increase in pressure drop also results.
Efficiency and pressure drop are also affected by barrel length, outlet
length, inlet configuration, and design of the internal cone.  These
factors are optimized to result in the maximum possible efficiency at a
practical overall size and pressure drop.