Presentation. BY;
• Muhammad Fahad Ansari 12IEEM14
CONTENTS
PARTICULATE MATTER CONTROLING DEVISES
FABRIC FILTER
TYPES OF FABRIC FILTER
PARTICULAT MATTER CONTROLING DEVISES
Fabric filters
Electrostatic precipitator
Scrubbers
Cyclones
FABRIC FILTER
Fabric filter is a cylindrical filter bag of fabric.
Several identical bags can be placed in a bag house.
Removal efficiency = 99.9%
Particle size range = 0.01 to 100(micro meter).
WORKING PRINCIPLE OF FABRIC FILTER
TYPES OF FABRIC FILTER
Reverse gas fabric filter (RGFF)
Pulse jet fabric filter (PJFF)
Bag shaker house
Reverse gas fabric filter (RGFF)
Common diameter of bags 8-12inches
Length of bags'= 22,30 or 35 feet
Reverse gas fans and ducts recycle part of the clean flue gas from the exit manifold back through the compartment during the cleaning cycle.
How it work
Pulse jet fabric filter (PJFF)
Common diameter of bags 5-6inches.
Pressure of compressed air = 100psi.
Pulse duration = 0.1sec.
Cleaning = one row of bag at a time then other bag.
Bag shaker house
Shaking method can be used to clean the bags with mechanical shaking.
Duration of shaking = (30sec to a few minutes)Common diameter of bags = 5,8,12 (inches)
Thanks
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