BAG FILTER

Recovery of particulate matter from exhaust gas is vital for any industry from two aspects

To avoid pollution problems
Recovery of finished product-increasing the plant yield

For recovering particulate matter different options available are – Cyclones, Venturi, scrubbers, bag filters, electrostatic precipitators etc. Out of these bag filter becomes the best choice if following are dominant selection criteria's:
  • Material is expensive and hence high collection efficiency is desired.
  • Particulate size is very fine.
  • Material recovery in powder form is desirable & not in solution form.

A conventional bag filter normally has following problems:

  • Frequent bag choking - hence high plant shut down time.
  • Higher pressure drops across bag filter – hence higher blower electrical power.
  • Bag choking resulting in reduced airflow rate & therefore reduction in plant capacity.

Due to the above the bag filter becomes bottleneck for plant operation.

Realizing above we have designed our bag filter using scientific procedure as elaborated in DESIGN METHODOLOGY. We manufacture bag filter as per "Quality Assurance Plan." Hence consistency in quality is guaranteed.
MECHANICAL COLLECTORS

Mechanical separation of particulate matter from the gas stream by centrifugal force is commonly used in mechanical dust collectors . PECMA offers medium and high efficiency cyclones . multi clones,Pulse Jet and Reverse Jet Bag Filter for different applications in Cement,Fertilizer,Pharmaceuticals , Coel fired Boilers, Cinter, Steel , Zinc and Copper smelter and many others where dust extraction and control is required.

Pecma Pulse jet has a compressed – air jet operating for a fraction of a second causing rapid vibration of ripple of the fabric which dislodges accumulated dust cake. The Pulse –jet design is predominantly used, because it is easier to maintain . Flow rates for pulse jet design is maintain.Flow rates for Pulse jet design ranges from 0.03 to 0.05 m/s for favourable dust. Felted fabrics are used for these designs because the cleaning mechanism is so vigorous that the pores of woven cloth are opened and excessive leakage may result.