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Dry Electrostatic Precipitator

홈 Business Dust Collection System Dry Electrostatic Precipitator

Haecheon Pipe type ESP’s characteristics

  • As unique discharge system, maximize efficiency of dust collection.
    • High electric field strength ( increasing ω value )
    • Optimized size and shape of collection electrode and discharge electrode.
    • Uniform high current density occur in whole discharge area.
    • Adjust current density according to dust properties
  • Collection plate and discharge electrode are non welding pipe structure.
    So, they are strong at heat deformation and can operate at high temperature of 450℃.
  • Collection plate and discharge electrode are strong at heat deformation and corrosion.
    So, efficiency drop of dust collection doesn’t occur and it can be used more than 30years without replacing collection and discharging electrodes.

Application fields

  • Glass furnace
  • steel manufacture
  • Rotary Kiln for cement / incinerators / mine
  • Coal-firing Boiler for power plant
  • BC-Oil firing Boiler
  • Waste gas boiler for petrochemical plants

Principle of dust collection

  • This is a method to collect dust by migrating and attaching charged
    particles (that “ + ” particles charge to “ - ” ions by using corona
    discharge by high voltage current ) to collecting plate by electric pullout
    strength.

Dust collection process in ESP

  • Direct current high volt generator ( TR ) corona discharge
  • Dust charging by “ - ” ion discharged from TR of dust contained
    in inlet gas.
  • By electrostatic pullout strength of charged particles,
    migrate to and attach on collection plate that has opposite polarity.
  • Falling down of dust attached on collection plate after impacting
    plate by rapper
  • Collect removed dust in hopper.
  • Exhaust collected dust through dust exhaust system.

Structure of Haecheon’s Pipe Type collection plate and discharge electrode

Haecheon’s Pipe type

  • Haecheon’s pipe type has high current density and uniform electric field.
    So, efficiency of dust collection is high.

Plate type

Rapping system of collection plate and discharge electrode

  • Collection plates and discharge electrodes have separate rappers.
    By rapping using resonance of pipe, efficiency drop due to
    re-scattering doesn’t occur
  • Because Rappers are attached on collection plates,
    malfuction doesn’t occur.