Electrostatic Precipitator (ESP)
Alongside its filter bag manufacturing, Micro-one Co., Ltd. designs and builds waste incinerators, flue gas treatment systems and power plant dust collection equipment on an EPC basis. Designs are checked with CFD flow analysis and 3D modeling, and every system can be fitted with Micro-one’s own DuraFill™ and CataFill™ filter bags.
We offer cost-effective consulting tailored to each customer and provide after-sales service once the plant is handed over.
Explore: heat recovery and waste-to-energy plants · flue gas treatment systems · power plant dust control · energy facility operations
An electrostatic precipitator (ESP) uses high voltage to charge dust particles and collect them on collecting plates. Its low resistance to gas flow (pressure drop) keeps fan power low, and it handles high gas volumes and temperatures well, which is why power plants and cement plants use it widely. Micro-one supplies ESPs that remove 99.9% or more of fine dust, covering everything from design and engineering through commissioning. Where an ESP alone cannot meet the emission limit, Micro-one can add a bag filter stage with its own DuraFill™ filter bags (E.BF).
As flue gas enters the ESP, high voltage applied to the discharge electrodes produces a corona discharge that ionizes the surrounding gas. Dust particles in the flue gas acquire a negative charge.
Charged particles are drawn toward the collecting electrode by the electric field. On reaching it, they adhere to the surface and are held in place by electrostatic forces.
At set intervals, rappers or other cleaning devices dislodge the dust from the collecting electrodes. The dust falls into a hopper at the bottom for collection and disposal.
Removes 99.9% or more of particles, including PM10 and PM2.5
Capable of handling large volumes of gas and dust, making it suitable for large industrial facilities
Low resistance to gas flow reduces fan power consumption
Available in dry and wet configurations to suit different gas conditions
Few consumables keep long-term operating costs low
Removal of fine dust from coal-fired power plant flue gas
Dust removal during grinding, blending, and kiln processes
Particle removal from blast furnace and coke oven processes
Facilities that emit process dust and mist
An ESP has a low pressure drop and suits hot, high-volume gas; a baghouse filters through fabric, reliably captures fine particles and is less sensitive to dust properties. A hybrid E.BF combines both.
Yes. Dust with very high or very low electrical resistivity is harder to collect. For such dust, a baghouse or an E.BF may be a better fit.
Retrofit EP upgrades the power supply, electrodes and gas distribution to raise performance without a new unit.
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