Electrostatic Precipitator for Pulverized Coal Boiler – High‑Performance Particulate Control
Product Overview
The electrostatic precipitator for pulverized coal boiler is a proven, low‑maintenance solution that captures fine ash particles before flue‑gas exits the stack. Designed specifically for the high‑velocity, high‑temperature environment of pulverized‑coal firing, the unit combines robust electrode construction with advanced discharge control to achieve collection efficiencies above 99%. Engineers and procurement managers choose this technology to meet stringent emission limits while protecting downstream equipment from abrasive wear.
Our design follows a modular layout that can be scaled from 30 MW to 600 MW boiler capacities. Whether you are specifying a new plant or upgrading an existing installation, the system can be delivered as a turnkey package or as a component for OEM integration.
How It Works – Simple Physics, Reliable Results
Particles become electrically charged as they pass through a high‑voltage corona field generated by the discharge electrodes. Once charged, they are drawn toward oppositely charged collection plates where they co‑here into a removable cake. The continuous cleaning of the plates by rapped hammers or pneumatic shakers ensures a stable voltage distribution and prevents re‑entrainment.
The system operates at temperatures up to 550 °C and can handle flue‑gas flow rates exceeding 12 000 m³/h. Intelligent control algorithms monitor voltage, current, plate voltage drop, and discharge stability, automatically adjusting power input to maintain optimal collection efficiency under load changes typical of pulverized‑coal boilers.
Technical Specifications (customizable per order)
| Parameter | Typical Range | Unit |
|---|---|---|
| Collection Efficiency | 98.5 – 99.9 | % |
| Operating Voltage (Discharge) | 30 – 70 | kV |
| Current Consumption | 1.2 – 4.5 | A |
| Plate Area | 5 – 150 | m² |
| Maximum Gas Temperature | 500 – 550 | °C |
| Flue‑Gas Flow Capacity | 2,000 – 12,000 | m³/h |
| Overall Dimensions (L×W×H) | 2.5 – 12.0 × 1.5 – 5.0 × 2.0 – 6.0 | m |
| Weight (incl. steel frame) | 3,500 – 28,000 | kg |
All dimensions and performance data can be adjusted to meet specific boiler layouts, stack heights, and local emission standards.
Competitive Advantages
- Proven reliability in >2,000 MW‑year operating history across multiple continents.
- Modular electrode design enables rapid onsite assembly and minimal downtime.
- Low power consumption – typical specific energy use < 0.02 kWh per 1000 m³ of treated gas.
- Compliance with major environmental directives (EU‑ETS, US EPA, China 1‑Class).
- Full OEM/ODM support: custom electrode spacing, plate geometry, and control software can be tailored to client specifications.
- Robust mechanical construction – high‑grade stainless steel and corrosion‑resistant alloys guarantee a 20‑year service life with routine inspection.
Frequently Asked Questions
What is the minimum order quantity (MOQ) for a custom electrostatic precipitator for pulverized coal boiler?
We accept both single‑unit pilot orders and bulk contracts. The MOQ is typically one full‑scale unit, but engineering‑service prototypes can be supplied for design validation.
Can the system be retrofitted into an existing boiler hall?
Yes. Our modular frame and adjustable electrode spacing allow installation in most conventional boiler layouts without major civil works. Detailed site surveys are performed to confirm clearance and mounting points.
What lead time should be expected after order confirmation?
Standard lead time ranges from 15 to 45 days, depending on the degree of customization and material availability. Expedited production can be arranged on request.
Is there a warranty or after‑sales support package?
All units ship with a 24‑month warranty covering manufacturing defects. Optional extended service contracts provide preventive maintenance, spare‑parts supply, and remote performance monitoring.