Air noise ppt by Muhammad Fahad Ansari 12IEEM14

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Muhammad Fahad Ansari 12IEEM14

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Air noise ppt by Muhammad Fahad Ansari 12IEEM14

  1. 1. Presentation. BY;• Muhammad Fahad Ansari 12IEEM14
  2. 2. CONTENTS PARTICULATE MATTER CONTROLING DEVISES FABRIC FILTER TYPES OF FABRIC FILTER
  3. 3. PARTICULAT MATTER CONTROLING DEVISES Fabric filters Electrostatic precipitator Scrubbers Cyclones
  4. 4. 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).
  5. 5. WORKING PRINCIPLE OF FABRIC FILTER
  6. 6. TYPES OF FABRIC FILTER Reverse gas fabric filter (RGFF) Pulse jet fabric filter (PJFF) Bag shaker house
  7. 7. 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.
  8. 8. How it work
  9. 9. 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.
  10. 10. 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)
  11. 11. Thanks

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