Cyclone Separator Maintenance

SeparatorsTypes of Dust SeparatorCyclone Separator working & types Critical ParametersAdvantagesDisadvantagesApplicationsmaintenance

Contents

PM InspectionMaintenance of Cyclone SeparatorTroubleshooting

Contents

What is Separator ?What is Dust Separator?Types of Dust Separator

Separators

A dust separator is an equipment which separates solid particles from fluid mainly a gas

What is Dust Separator

Inertial or Dry CentrifugalsWet Collectors (scrubbers)Fabric FiltrationElectrostatic Precipitators

Types of Dust Separator

CycloneMulti tube CycleDry Dynamic

Inertial or Dry Centrifugal

A cyclone separator is used to separate larger, heavy particles from smaller, lighter particles.

The basic principle of cyclone separators is the action of centrifugal force.

Cyclone Separator

Working

Tangential inletAxial inletScroll inlet

Types

Tangential inlet

Axial inlet

Scroll inlet

Gas stream velocity particle agglomeration characteristics (tendency to

join/stick together) cyclone diameter-to-length ratio

Critical Parameters

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.

Advantages

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 , ESPsSubjected to erosive wear and fouling if solids being

processed are abrasive or ‘sticky’

Disadvantages

Oil and gas (for instance in fluidized catalytic cracking unit, FCCUPower generation Incineration plant Iron and steel industry/blast furnaces and non ferrous industriesFood industryChemical plants (plastics, elastomers, polymers, etc)Wood chip, wood mill and building material plantsSand plantsCement plantsCooking plantsCoal fired boiler

Applications

Maintenance

There are three general rules Cleaning the dust-collector storage hoppers at regular,

predetermined intervals.Definite scheduling of inspection for preventive

maintenance.Repairing, replacing, and cleaning all parts where

indicated by the regular inspection.

Maintenance of Dust Control Equipments

Inspect the separator at periodic maintenance intervals for the following conditions: 

Externally for rust, corrosion and peeling paintInternally for corrosion and accumulations of dirt and

oil Gaskets for damage

 Preventive maintenance inspection

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-

entrainment.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

 Maintenance

Troubleshooting of Cyclone Separators