BLESP Series Electrostatic Precipitators (Metallurgical Industry)

🔥 Sinter Plant Dedusting (Head/Tail)

• 📉 Max Gas Volume: Up to 2,500,000 m³/h
• 🌡️ Temperature: 80 – 160 °C
• 🌫️ Inlet Dust Density: Up to 50 g/Nm³
• 🌪️ Max Suction Pressure: -22,000 Pa (Extreme)
• 🏭 Supported Units: 18 – 450 MW scale
• 

🛡️ Dry Type Converter Gas ESP

• 📉 Max Gas Volume: 1,400,000 m³/h
• 💥 Design: Cylindrical, Explosion-Proof
• 🛑 Sealing: 100% Zero Leakage Design
• 🏋️ Casing Pressure Bearing: 0.2 MPa
• 🚨 Safety: Integrated Relief Valves
• 

🎯 Core System Performance

• ✅ Outlet Emission: < 50 mg/Nm³ (Capable of < 10 mg/Nm³)
• ✅ Operating Resistance: 200 – 350 Pa
• ✅ Collecting Plates: ZT24 High-Efficiency
• ✅ Discharge Wires: Fishbone / B-Type / V-Type
• ✅ Lifespan: Designed for 20+ Years

How Electrostatic Precipitation Works

The Ever-power BLESP Series separates abrasive and potentially explosive particulate matter from metallurgical gas streams using intense electrostatic forces (Coulomb force). This achieves maximum capture efficiency with virtually zero mechanical resistance.

1. Laminar Gas Distribution: Raw gas flows through highly engineered distribution screens (X-type, square hole, or round hole) to ensure uniform velocity distribution across the entire cross-section.
2. High-Voltage Ionization: Tens of thousands of volts (DC) are applied to the Discharge Electrodes. This creates a powerful corona discharge, ionizing the gas and generating an electron avalanche.
3. Particle Charging & Migration: Suspended metallurgical dust particles collide with ionized gas molecules, acquiring a strong negative charge, and are driven forcefully toward the grounded Collecting Electrodes.
4. Mechanical Rapping: Precisely timed continuous and revolving-arm hammers strike the plates and wires. The shear force causes the agglomerated dust to fall directly into the collection hoppers.

Advanced Internal Componentry

The reliability of an ESP in a steel plant depends entirely on its internal structural integrity:

• ZT24 Collecting Electrodes (CE): Our proprietary ZT24 profile plates offer superior discharging performance and uniform current density. They mathematically yield a 10% larger effective dust collecting area compared to standard profiles in the same space.
• Rigid Discharge Electrodes (DE): We utilize heavy-duty B-type, V-type, and rigid Fishbone wires. In turbulent sinter flows, these guarantee absolute solidity, non-breakability, and aggressive, uninterrupted corona generation.
• Specialized Cylindrical Architecture (Converter Gas): For explosive CO gas mixtures, standard rectangular ESPs fail. Our cylindrical casing design prevents combustible gas/air pockets, eliminates dead zones, and features a 100% sealed, 0.2MPa pressure-bearing shell equipped with explosion relief valves and special internal dust scrapers.

Extreme Suction Tolerance

Sintering processes generate massive negative pressure. Standard casings buckle. The BLESP series is structurally reinforced with heavy-duty carbon steel framing to operate flawlessly under extreme suction pressures up to -22,000 Pa.

Explosion-Proof Engineering

Converter gas recovery is highly volatile due to fluctuating CO concentrations. Our Dry Type Converter Gas ESPs are built as cylindrical pressure vessels (up to 0.2 MPa tolerance) with zero-leakage seals and dynamic explosion relief venting.

Ultra-Low Resistance

While fabric filters create 1500+ Pa of resistance, our aerodynamic internal pathways ensure dynamic operating resistance remains at a mere 200 – 350 Pa. This slashes the enormous electrical load on your main Induced Draft fans.

Regulatory Strangulation & Fines

Global environmental ministries are actively targeting the steel and non-ferrous sectors. Enforcing strict ultra-low limits (< 50mg/Nm³, and increasingly < 10mg/Nm³). Exceeding these limits triggers automated telemetry alarms, resulting in staggering daily fines and immediate operational shutdowns. Your dedusting system is the primary shield protecting your production quota.

The “Hidden” Profit Bleed of Outdated Filters

Legacy baghouses or failing ESPs force your ID fans to work against massive pressure drops, burning megawatts of excess electricity every single day. Furthermore, inadequate dust capture causes rapid, severe abrasive wear on downstream fan blades and ductwork, resulting in millions of dollars in premature equipment replacement.

Sintering Machine Process Gas (Head & Tail)

Captures highly abrasive sinter dust from main extraction points. Built to withstand continuous 2,500,000 m³/h volumes at severe -22,000 Pa negative pressure, protecting main extraction fans from erosion.

Dry Type Converter Gas Recovery

The most complex ESP application. Purifies explosive, intermittent Carbon Monoxide (CO) off-gas. Our cylindrical design avoids combustible dead zones, allowing safe capture and energetic recycling of converter gas.

Non-Ferrous & Auxiliary Smelting

Highly effective for capturing valuable metallic dust from copper, aluminum, and zinc smelting processes, turning emission compliance into direct material recovery and secondary revenue.

For over two decades, Ever-power has been the structural backbone of heavy industrial air purification. The BL Series is not an off-the-shelf product; it is a technically honed, battle-tested benchmark forged through hundreds of complex metallurgical projects.

• ✔️ Full Value-Chain Capability: We provide total turnkey integration: Process R&D Design ➔ Lean CNC Manufacturing ➔ Complex Engineering Installation ➔ Intelligent HV Commissioning.
• ✔️ Trusted by Heavy Industry Giants: Our systems successfully protect core operations for major metallurgical and power entities globally, preventing thousands of hours in potential downtime.
• ✔️ Uncompromised Quality Credentials: Fully ISO certified, holding multiple structural patents for ESP internal geometries, and globally recognized environmental manufacturing credentials.

The Cost of Inaction

• Massive Fan Energy Waste: Overcoming a 1800 Pa pressure drop on a 2,000,000 m³/h sinter exhaust requires hundreds of excess kilowatts constantly.
• Consumables Bleed: Replacing shredded filter bags due to abrasive iron dust costs tens of thousands annually in material and labor.
• Unplanned Stoppages: Bag blinding or explosion risks force unscheduled shutdowns, costing hundreds of thousands in lost steel production.

The Ever-power Upgrade ROI

• Fan Power Slashed: Operating at a mere ~300 Pa saves enough electrical power to frequently pay back the entire ESP investment within 3-4 years.
• Zero Filtration Consumables: Our rigid ZT24 plates and Fishbone wires do not abrade like fabric. Zero bags to buy for decades.
• Material Recovery: Highly efficient capture of non-ferrous or iron dust allows for immediate material recycling back into the process loop.

🇨🇳 Tangshan Iron & Steel (China)

Application: 360m² Sintering Machine Tail ESP

Challenge: Processing highly abrasive iron ore dust under -18,000 Pa negative pressure without casing deformation.

Solution: Installed the BLESP Series with heavy-duty structural reinforcement. Protected the main extraction fan from erosion and maintained outlet emissions strictly below 30mg/Nm³, ensuring continuous compliance in China’s strictest emission zone.

🇮🇳 Mumbai Metallurgical Corp (India)

Application: Dry Type Converter Gas Recovery

Challenge: Extremely volatile CO gas mixtures causing safety shutdowns in legacy rectangular precipitation systems.

Solution: Ever-power deployed our specialized Cylindrical ESP. The 0.2MPa pressure-bearing zero-leakage design eliminated gas pockets, allowing the plant to safely recover converter gas for secondary power generation with 100% safety.

🇧🇷 Sao Paulo Steelworks (Brazil)

Application: Blast Furnace Cast House Dedusting

Challenge: Plant required a rapid upgrade from failing baghouses that were blinding due to ambient moisture and heat spikes.

Solution: Converted to a multi-field BLESP system. The low 300 Pa operating resistance immediately freed up megawatts of ID fan capacity, and the system easily handled temperature excursions up to 200°C without damage.

🇩🇪 Ruhr Valley Smelting (Germany)

Application: Non-Ferrous Copper Smelting Exhaust

Challenge: Capturing high-value, highly resistive sub-micron copper particulates to meet stringent EU emission standards.

Solution: Engineered a compact, high-field ESP utilizing micro-pulse High-Frequency power supplies. Achieved 99.98% collection efficiency, recovering tons of valuable copper dust daily and paying for itself in 18 months.