Wet Electrostatic Precipitation WESP | WESP1W/240W Series

🌊 Volumetric Capacity

• 📉 Gas Volume: 10,000 to 2,400,000 m3/h
• 🌡️ Allowable Temp: 30 to 90 °C (Saturated)
• 🌫️ Inlet Dust/Mist: 1 to 300 mg/Nm3
• ⚖️ Casing Pressure: 2,000 to 20,000 Pa

🎯 Purification Performance

• ✅ Outlet Emission: < 10 mg/Nm3 (target < 5)
• ✅ Operating Resistance: 300 to 500 Pa
• ✅ Gas Velocity: 0.8 to 2.0 m/s (Anode Tube)
• ✅ Secondary Entrainment: Zero (Flushing System)

🛡️ Core Materials & Architecture

• 🔋 Anode Tubes: Conductive FRP / 2205 SS Honeycomb
• ⚡ Cathode Wires: Lead-Antimony / 2205 SS Barbed
• ⚙️ Distribution: X-type / Square / Round Screen
• 🛡️ Insulation: Sealed Heated Insulator Box

The WESP Working Principle

Unlike dry ESPs, the Ever-power WESP operates in a fully saturated gas environment (below dew point). It is specifically engineered to capture liquid aerosols, SO3 acid mists, and sticky dusts that would blind dry mechanical filters.

1. High-Voltage Ionization: Tens of thousands of volts of DC high voltage are applied between the Anode Tube and Cathode Wire. The intense electric field fully ionizes the saturated gas, generating massive quantities of electrons and ions.
2. Particle Charging: As dust-laden gas flows through, these ions collide with fine dust particles, droplets, and aerosols, heavily charging them.
3. Electrostatic Migration: Driven by Coulomb force, the charged particulate separates from the airflow and migrates rapidly toward the grounded Anode Tube inner wall.
4. Continuous Flushing: Adsorbed particles are trapped in a continuous water film. A Flushing System washes the tubes, allowing the slurry to flow into the lower liquid zone via gravity. No mechanical rapping is used, eliminating secondary dust entrainment.

Advanced Internal Components

Handling wet, corrosive, acid-rich gases requires exceptional material science and structural engineering:

• Anode Tubes: Manufactured from either Conductive Fiberglass (FRP) Honeycomb or 2205 Duplex Stainless Steel Honeycomb. These materials offer flawless electrical conductivity combined with absolute immunity to sulfuric and hydrochloric acid corrosion.
• Cathode Wires: Tailored to the flue gas chemistry, we deploy Lead-Antimony alloy, 2205 SS barbed, or tubular barbed wires. These provide a sharp, intense corona discharge and are anchored by our rigid Tensioning Device to prevent sway and shorting.
• Insulator Box: The most critical failure point in any WESP is high-voltage tracking over wet insulators. Our system utilizes a sealed, heated Insulator Box acting as a “protective umbrella,” ensuring high voltage is safely introduced without grounding out in the humid environment.
• High-Frequency Power Supply: Delivers rapid micro-pulses of DC voltage, adapting instantly to changes in gas moisture and minimizing spark-over energy.

Zero Secondary Entrainment

Because the WESP uses a water film and flushing system instead of mechanical hammers (rapping), collected dust is permanently trapped in liquid. It is physically impossible for dust to re-enter the gas stream, securing your ultra-low emission guarantees.

Total Plume & Mist Eradication

Standard wet scrubbers fail to capture aerosols smaller than 2 microns. The Ever-power WESP captures sub-micron PM2.5, SO3 acid mists, and heavy metals, effectively eliminating the dreaded “blue plume” or “yellow plume” at your stack outlet.

Low Resistance = Low OPEX

Despite its massive capture efficiency, the aerodynamic open-tube design yields a system resistance of only 300 – 500 Pa. This saves massive amounts of ID fan electricity compared to high-energy venturi scrubbers.

The Post-FGD Carryover Crisis

Many industrial plants install Wet Flue Gas Desulfurization (WFGD) scrubbers and assume compliance is met. However, scrubbers inherently generate microscopic gypsum droplets and saturated acid mists that pass right through standard mechanical mist eliminators. This “acid rain” violently corrodes downstream ductwork, destroys chimney stacks, and creates highly visible, legally non-compliant plumes. A WESP is the mandatory final gatekeeper to protect your infrastructure.

Extreme Regulatory Pressure on PM2.5

Global environmental protection agencies are moving past TSP (Total Suspended Particulates) and strictly enforcing PM2.5 and PM1.0 limits. Fabric filters and dry ESPs cannot capture sticky, ultrafine saturated aerosols. WESP technology is the only commercially viable method proven to consistently achieve outlet concentrations below 5 mg/Nm3 for these complex streams.

Power Generation & Boilers

Installed immediately after Wet Flue Gas Desulfurization (WFGD) towers. Eliminates gypsum carryover, sulfuric acid mist (SO3), and fine ash, allowing power plants to hit “ultra-low emission” targets effortlessly.

Lithium & New Energy Materials

Crucial for Lithium Carbonate calcination and roasting exhaust. Captures valuable product dust that escapes dry collection systems while resisting highly corrosive chemical byproducts generated in battery material processing.

Metallurgy & Calcination

Purifies off-gases from steel sintering, lead/zinc roasting, and new wall material workshops. Captures heavy metals, sticky tars, and condensed acids that would permanently blind traditional fabric filters.

For over two decades, Ever-power has been the structural backbone of heavy industrial air purification. Designing a Wet Electrostatic Precipitator requires profound mastery over corrosion-resistant polymers, high-voltage physics in wet environments, and fluid dynamics. This cannot be outsourced to generic fabricators.

• ✔️ Full Value-Chain Capability: We provide total turnkey integration: Process Engineering ➔ In-house FRP/Alloy Manufacturing ➔ Complex Installation ➔ Intelligent HV Commissioning.
• ✔️ Proven Across Core Industries: The BL series WESP successfully protects the core operations of leading conglomerates, from massive steel plants (Hubei Lijin) to cutting-edge lithium facilities (Jiangxi Taipin New Energy).
• ✔️ Proprietary Material Technology: Our unique Conductive Fiberglass Honeycomb tubes ensure unparalleled corrosion resistance and maximize electric field intensity without degrading over time. ISO Certified, patented, and globally recognized.

The True Cost of Inaction

• Stack & Duct Destruction: Uncaptured acid mist condenses in downstream ductwork and chimney stacks. Rebuilding an acid-eaten concrete/steel chimney costs millions of dollars and halts plant production for months.
• Regulatory Shutdowns: Visible plumes and PM2.5 violations trigger immediate civic complaints, leading to punitive daily fines and forced facility suspensions by environmental authorities.
• High Fan Energy Waste: Relying on high-pressure venturi scrubbers to capture fine mist forces your ID fans to burn excessive megawatts continuously, destroying your energy efficiency metrics.

The Ever-power Upgrade ROI

• Absolute Asset Protection: By eliminating 99%+ of acid mists and gypsum carryover, downstream equipment life is extended indefinitely. The WESP pays for itself by preventing a single chimney rebuild.
• Valuable Byproduct Recovery: In industries like Lithium refining or non-ferrous smelting, the WESP captures highly valuable product dust that escaped dry filters, generating direct secondary revenue.
• Uninterrupted Compliance: Operating comfortably below 5mg/Nm3 ensures your facility remains online 24/7/365, totally immune to tightening future environmental legislation.

🇨🇳 Hubei Lijin Steel (China)

Application: Sintering Plant WFGD Post-Treatment WESP

Challenge: Heavy gypsum carryover and sulfuric acid mist from the wet scrubber caused severe “blue smoke” and rapid downstream duct corrosion, drawing regulatory scrutiny.

Solution: Installed the Ever-power BLWESP series utilizing conductive FRP honeycomb tubes. Eliminated the plume entirely, dropping total particulates consistently below 5mg/Nm3 and halting duct corrosion immediately.

🇧🇷 Minas Gerais Lithium Tech (Brazil)

Application: Lithium Carbonate Calcination WESP (Similar to Yifeng Jinfeng Project)

Challenge: Ultra-fine, highly valuable lithium dust was slipping through upstream dry collectors. The exhaust was saturated and slightly corrosive.

Solution: Deployed a multi-field WESP. Captured over 99.5% of the escaping sub-micron lithium dust as a slurry, which the plant reprocessed. The system paid for itself in recovered product value within 14 months.

🇮🇳 Gujarat Chemical & Acid Plating (India)

Application: Acid Mist Eradication from Pickling Lines

Challenge: Heavy concentrations of hydrochloric and sulfuric acid mist were destroying nearby structural steel and violating local EPA mandates.

Solution: Custom-engineered a WESP using 2205 Duplex Stainless Steel honeycomb tubes. The continuous flushing system washed the captured acid safely into the neutralization pit, ensuring 100% compliant, invisible stack emissions.

🇩🇪 Rhine Valley Materials (Germany)

Application: New Wall Material Workshop Roasting Exhaust (Similar to Dingxin Project)

Challenge: High-moisture roasting exhaust containing sticky tars and particulate that blinded standard baghouses within weeks, halting production.

Solution: Installed the WESP1W series. The electrostatic force pulled the sticky tars to the wet tube walls, where the flushing system washed them away. Maintained a steady 400 Pa resistance with zero downtime for filter changes.