• This unit removes fine dust particles and purifies air in tunnels and underground space.
　　• Tunnel air containing dust passes through the ESP, which features negatively charged electrodes and positively charged collecting plates.
　　• Dust is absorbed by the collecting plates so that only clean air is emitted.
　　• The system deals with the captured dust particles through periodic cleaning with water.
　　• This is system can maintain over 80% collection efficiency even in high speed air streams (over 13 m/s).
　　• The ESP is equipped with discharge electrodes of a saw blade shape and has a compact structure.
　　• It is ideal for treating large volumes of dust containing gas or air.

　　As a dust-collector which can purified the ash and dust from air in tunnel and underground space， when the air mixed with dust and ash pass the collector， dust stick on collecting plate by discharging of discharger electrode and collecting plate, then clean air is discharged only, and absorbed ash and dust will be cleaned by water periodically and waste water will be treated by water treatment system

　　The ESP operates stably and maintains 90% collecting efficiency in case high speed airflow (over 7m/sec). It is able to treat big volume of dusty gas or dusty air easily by using compact saw blade shape of discharge electrode.

      Features
　　• Maximized corona discharge due to saw blade shaped discharge electrodes.
　　• Compact single-stage ESP with simultaneous dust collection and discharge in the same space.
　　• Use of commercial charging device(transformer rectifier) removes the need for a separate power grid.
　　• GVS method for precision control and optimization of voltage and electric current.
　　• Can be operated for high speed air streams.