Particulate Control

Dry Electrostatic Precipitators

Wheelabrator Dry Electrostatic Precipitators

Benefits

  • 99.9+% removal capability
  • Low pressure drop
  • High degree of customization to meet project and customer needs
  • Tumbling hammer and gravity impact rapping designs available
  • Full Penthouse for ease of maintenance
  • Can be combined with Wheelabrator acid gas removal technologies for moderate removal of:

    • Acid gases – SO2, SO3, HCl, HF
    • Mercury
  • Continued support with training, startup, inspections, replacement parts, and upgrade/rebuilds

With more than 60 years of experience in the design and supply of dry electrostatic precipitators, we offer quality, cost effective solutions and services to meet the most stringent particulate control regulations. 

Our Dry ESP technology efficiently cleans gases from industrial and utility processes ranging from 30,000 to 5 million ACFM. Designs include the HaRDE® 

Rigid Discharge Electrode with tumbling hammer rapping and the Wheelabrator VIGR™ Rigid Discharge Electrode with magnetic impulse rapping.

Applications

Pulp & Paper (recovery & power boilers)
Steel (ore dryers, furnaces, sinter machines)
Cement (dry kilns, wet kilns, calciners)
Cat Crackers (catalyst separation)
Oil-Fired Boilers
Coal-Fired Boilers
OVER 50GWE OF UTILITY APPLICATIONS

Hundreds of industrial installations across wide range of applications; Rebuild/upgrade/retrofit projects on many different ESP designs retrofit/upgrade applications

Diagram of a Harde or Hammer Rapped Rigid Discharge Electrode from a Wheelabrator Dry Electrostatic Precipitator

HaRDE™ (Hammer Rapped Rigid Discharge Electrode)

Features
  • High Intensity tumbling hammer rapping for tenacious dust
  • Rigid discharge electrodes for increased performance and enhanced reliability
  • Clean roof with no penetrations minimizes air in-leakage and corrosion.
  • Full penthouse/insulator encl.
  • Designed for wide plate spacing
  • Access at top and bottom of fields
  • Minimum internal obstructions

Diagram of a Variable Intensity Gravity RappedWheelabrator Dry Electrostatic Precipitators

VIGR® (Variable Intensity Gravity Rapped)

features
  • Variable intensity gravity rapping for optimized plate cleaning
  • Rigid discharge electrodes for increased performance and enhanced reliability
  • Compact casing with no moving parts in gas stream
  • Shop assembled curtains to minimize construction time
  • 2 or 4 point high voltage suspension
  • Full penthouse/insulator enclosure
  • Designed for wide plate spacing
  • Access at top and bottom of fields
  • Minimum internal obstructions

How it Works

Flow Cart of the Wheelabrator Dry Electrostatic Precipitator Theory

Step 1: Charging
  • Gas ions formed by corona discharge
  • Particulate charged by gas ions

Step 2: Collection
  • Ions transport particles to collect plate
  • Particulate charge given to collect plate
 
Step 3: Cleaning
  • Collecting plate rapped for cleaning

Special Features

Diagram of Wheelabrator Dry Electrostatic Precipitators rapping system

Rapping Systems
  • Tumbling hammer or gravity impact rapping available
  • Recommendations can be made to customer based on application

diagram of a Harde clean roof design

clean roof design
  • Unique HaRDE™ clean roof design (no roof penetrations, minimizes leakage/corrosion issues)
  • Full penthouse / insulator compartment enclosure

Wheelabrator Dry Electrostatic Precipitator single rigid discharge electrode

Rigid Discharge Electrode (RDE)
  • Virtually unbreakable design – superior to wire-type designs in performance and reliability
  • Sharp pointed corona generators with Variable spike length & spacing for specific process/fuel

Conventional design with separate free-standing controller

  • Multiple transformer/rectifier and controls options available
  • Conventional design with separate free-standing controller
  • Three-phase design with separate free-standing controller for improved ESP performance
    High-frequency T/Rs

working rebuilding or upgrading Wheelabrator Dry Electrostatic Precipitators

Rebuilds, upgrades, retrofits, services
  • Our experience includes upgrades to multiple ESP designs/types; weighted wire electrode, bed-spring electrode, rigid frame electrode, tumbling hammer rapping, gravity impact rapping
  • Ranging from complete rebuilds to upgrades of controls

 

Recent Projects

Wheelabrator Dry Electrostatic Plant for Martin & Manatee, FL

FPL Martin & Manatee

Location: , USA Customer: Florida Power & Light
Design: 4 x VIGR ESP
Plant Capacity: 4 x 800 MWe
Start-Up Year: 2012-2015
Fuel: No. 6 Fuel Oil
Gas Flow: 4 x 2,958,000 ACFM
(4 x 5,025,673 m3/hr)
PM Removal: 95%

Wheelabrator Dry Electrostatic Plant for Santee Cooper

Santee Cooper Cross

Location: Cross, SC, USA
Customer: Santee Cooper
Design: 4 x HaRDE ESP
Plant Capacity: 2 x 600 MWe
Start-Up Year: Unit 3/4 - 2007/08
Fuel: Bituminous Coal
Gas Flow: 4 x 1,050,000 ACFM
(4 x 1,783,961 m3/hr)
PM Removal: 99.9%

Wheelabrator Dry Electrostatic Plant for Cinergy Duke in Cayuga

Cinergy (Duke) Cayuga

Location: Cayuga, IN, USA
Customer: Cinergy (Duke)
Design: 4 x VIGR ESP
Plant Capacity: 2 x 525 MWe
Start-Up Year: Unit 1/2 – 2005/06
Fuel: Bituminous Coal
Gas Flow: 4 x 1,050,000 ACFM
(4 x 1,783,961 m3/hr)
PM Removal: 99%

Talk with a technical specialist

Your questions are our priority. Contact us at 412.562.7300 or add your question below and we’ll be in touch.