Process Bag Filter | Bag House construction feature | Pollution Control equipment | installation guideline for process Bag filter
Type of Pollution Control equipment’s
Type of Bag Filter
Online Bag filter working Principle
Type of Filter Bag Fixing arrangement
What is Pollution Control Equipment
In industrial process, various particulate and gaseous matter get generated are called as pollutant.
Those pollutant are allowed to pass through an equipment which separates particulate matter (like fly ash, lime stone, coal dust, cement etc.) and gaseous matter (like Sox, Nox, volatile organic etc) from air stream.
Clean air then let out to atmosphere and thus controlling pollution in atmosphere.
1. Constant Efficiency Type: Those if inlet designed parameters vary, emission also get disturbed.
a.Cyclone / Muti Cyclone
b. Wet Scrubber
c. ESP(Electro static Precipitator)
2. Constant Emission Type: In this case on changing inlet parameters, outlet emission will not change.
a. Fabric Filter ( Bag Filter)
Type of Bag Filter
1. On-Line Bag Filter:
This type of bag filter have only one chamber.
Cleaning of bags and filtration of gases taking place in same time.
Generally used in small de-dusting having lesser gas volume.
Lower cleaning efficiency.
2. OFF-Line Bag Filter: (Bag House, RABH)
This type of bag filter have more than one chamber.
During bags cleaning, one chamber get isolated from gas stream.
Higher cleaning efficiency.
Generally used in very high gas volume filtration.
Bag filter working Principle
The dust laden air enters through the hopper by suction or positive pressure. The heavier dust particles fall immediately into the hopper, while the lighter dust gets deposited on the outside of the filter bags. This dust is removed in a pre-determined cycle by pulse of high pressure compressed air.
Constructional features of Bags Fixing
a.Coller Bend Type
b. Snap bend type
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