Gas stream velocity
particle agglomeration characteristics (tendency to
cyclone diameter-to-length ratio
The collected product remains dry
Low capital investment
Low maintenance cost
Very compact in most applications
Can be used under very extreme processing conditions
No moving parts
Constant Pressure drop
Can be equipped with erosion or corrosion resistant
Can be fabricated with plate metal
Can handle sticky and tacky solids with proper liquid irrigation
Separate liquid or solid particulates, sometime both in combination
with proper design.
A low efficiency for particle sizes below their ‘cut sizes’
Usually higher pressure loss than other separating types,
including bag filters, low pressure drop scrubbers , ESPs
Subjected to erosive wear and fouling if solids being
processed are abrasive or ‘sticky’
Oil and gas (for instance in fluidized catalytic cracking unit, FCCU
Iron and steel industry/blast furnaces and non ferrous industries
Chemical plants (plastics, elastomers, polymers, etc)
Wood chip, wood mill and building material plants
Coal fired boiler
There are three general rules
Cleaning the dust-collector storage hoppers at regular,
Definite scheduling of inspection for preventive
Repairing, replacing, and cleaning all parts where
indicated by the regular inspection.
Inspect the separator at periodic maintenance intervals
for the following conditions:
Externally for rust, corrosion and peeling paint
Internally for corrosion and accumulations of dirt and
Gaskets for damage
Perform the following maintenance tasks.
Remove corrosion and peeling paint.
Prime and paint prepared surfaces.
Thoroughly clean separator internals.
Replace defective gaskets.
Emptying the storage hoppers at regular intervals to avoid re-
Avoiding leakage at the dust-discharge point, especially if the
unit is under negative pressure.
Routinely inspecting for buildup and extreme wear.
Keeping uniform air volume to maintain constant efficiency