E-BF is combined ESP with bag filer (BF) together to get high collecting efficiency through pre-collecting and charging of front ESP,   as well as filtering of  bag area. It fully develops advantages of both ESP and BF and excellent performance by combination of ESP and BF.
During dust collection, there are two important functions for electric field, thereby filtering takes dramatically change in the area of filtering bag.

　　1.Dust collection, most of dust particles are captured in the electric filed of the frond ESP, its collecting efficiency can be 80%-90%. So dust loading in the bag filter is low.
　　2.Charging, like charged particles in the flue gas repel each other, that make charged particles array orderly and improve porosities of the dust layer, and lower pressure loss. Opposite charged particles attract each other, that improve capture of micro-particulate.

diagram of E-BF

structure of upgrade from ESP to E-BF

　　Features
　　-- Lightly affected by coal type, nature of flue gas and resistivity of fly ash, E-BF operates effectively and stably.
　　-- Make dust array dendritic structure by electrostatic force, lower resistance and clean easily.
　　-- To lower investment cost by increasing filtering wind velocity passes in the bag.
　　-- 20%-30%  less pressure loss , lower operation cost
　　-- Low dust loading in the bag to minimize load of bag and prolong 50% of cleaning cycles, therefore lifetime of bag is prolonged.
　　-- High collecting efficiency especially for capturing micro-particulate.
　　-- Minimum space requirement and be suit for upgrade of existed ESP.