Wet electrostatic dust removal

1. Basic Structure & Principle

Main Structural Components

2. Detailed Working Process

Phase 1: Gas Ionization and Dust Charging

1. Dust-laden wet flue gas enters the equipment and is evenly distributed by airflow distributors.

2. The high voltage power supply outputs tens of thousands of volts DC power to negative cathodes while anodes are grounded. A strong electric field is formed around cathodes to ionize gas molecules and generate massive electrons and positive ions. High-speed moving electrons collide with dust particles to make them negatively charged.

3. The spraying system injects water to form fine water mist inside the electric field. The mist gets charged and further atomized to improve pollutant capture capacity.

Phase 2: Migration and Capture of Charged Dust

1. Negatively charged dust particles move towards grounded anodes under Coulomb force. Charged water mist aggregates with dust to accelerate migration speed.

2. Dust particles discharge electricity and adhere to anode surfaces. It is highly effective in capturing fine particles such as PM2.5 and acid mist aerosol with removal efficiency over 99%.

Phase 3: Water Film Ash Cleaning

1. The spraying system continuously supplies water to form uniform flowing water films on anode surfaces.

2. Attached dust is flushed down by water films and flows into the ash hopper, completely avoiding secondary dust emission caused by rapping cleaning used in dry electrostatic precipitators.

3. Wastewater from the ash hopper can be neutralized and filtered for recycling.

3. Working Principle Diagram

         ┌──────────────┐          │ Dust-laden Flue Gas │◀── Inlet          └──────────────┘                 │          ┌──────────────┐          │ Airflow Distributor │          └──────────────┘                 │      ┌─────────────────────────┐      │     Cathode System      │◀── High Voltage Power Supply (30-80kV)      │ (Discharge Electrode, Negative Pole) │      └─────────────────────────┘                 │      ┌─────────────────────────┐      │       Anode System      │ (Collecting Electrode, Positive Pole, Grounded)      │ (Plate / Honeycomb Tube Type) │      └─────────────────────────┘                 │          ┌──────────────┐◀── Spraying System          │  Water Film Zone  │          └──────────────┘                 │          ┌──────────────┐          │    Ash Hopper    │──▶ Wastewater Discharge          └──────────────┘                 │          └──────────────┘◀── Purified Flue Gas

4. Core Advantages

5. Application Scenarios