Electro Fabric Precipitator

Electro Fabric Precipitator

MAJOR SPECIFICATIONS

Flue gases flow handling capacity  : 27000 to 30000 NM³/hr.

Flue gases inlet temperature   : 170 to 180^OC.

Incoming Dust content   : 150 to 200 mgm/NM³ max.

Outlet Emission  : 25 mgm/NM³

Type of Fabric  : High permeability, Fiberglass with

PTFE Expanded Membrane.

Continuous operating temperature  : 250 to 260^OC max.

for filter fabric.

Electric Power Consumption : Max 3 KWH

Operational Technology

The proposed electro fabric precipitator system is essentially a high efficiency electrostatic precipitator unit with out collection plates. The deficiency of a conventional Electrostatic Precipitator in collection of the extra fine dust particulates from the Gas Stream is effectively overcome in the proposed system. The finer dust particulate with charge are attracted by the grounded metal cages inside the Barrier Filter Elements in the same way as in the conventional ESP.

The permissibility of higher air to cloth ratio in this system reduces the filteration area requirement comparatively for the same gas flow and also reduces the pressure drop with in the unit.

The proposed equipment is more effective when the dust particulates are extra fine and are practically beyond the capturing capabilities of a conventional ESP. It is also observed that the finer dust particulates are more harmful from health considerations.

The proposed equipment with the Electro-stimulated collection capabilities and with Fabric Filter Elements is mot suitable for installation in series and downstream of the existing ESP installations and ahead of the I.D Fan Unit.

As no sparking occurs inside the system configuration , there is no fear of any of damage to the filter fabric by electrical sparks. Also, as the dust particulates entering this stimulation system are very fine in size, their impact energy on the filter fabric is too small to inflict any damage to the filer fabric.

The field strength with in the unit is kept below the voltage at which corona discharge occurs so that no sparking takes place with in the space around the Barrier Fabric Elements, the proposed super charged technology with use of fabric filter bags results in more positive and dependable seperation of finer dust particulates from the gases discharged in compliance to the stringent pollution control emission limits.