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  • Electrostatic precipitator

ESP

Article: 00046250

Electrostatic precipitator

B&W MEGTEC?s dry electrostatic precipitator (ESP) combines the advantages of maximum particulate control and collection efficiency with low operating and maintenance costs. In addition to a proven record of performance and reliability, our dry ESP offers many distinct advantages.

High Efficiency ? up to 99.9% collection efficiency even with fine particles
High Temperatures ? up to 800 deg F (426 deg C)
Wide Capacity Range ? from a few thousand to several million actual cubic feet per minute
Low Maintenance ? reliable components provide dependable and highly efficient operation with minimal maintenance
An ESP uses a high voltage electric current to separate dust, fume or mist from a gas stream. The precipitator consists of vertical parallel plates forming gas passages 12 to 16 in. (30.5 to 40.6 cm) apart. Discharge electrodes are electrically isolated from the plates and suspended in rows between the gas passages. A high voltage system provides power to the discharge electrode generating an electrical field. The particulate, entrained in the gas, is charged while passing through the electrical field. The particulate receives a negative charge, is attracted to the grounded collector plate, and forms a dust layer on the plate. Periodic rapping separates the accumulated dust layer from both the collector plates and discharge electrodes. The dust layer released by the rapping collects in hoppers and is removed by an ash handling system

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