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CLARCOR Industrial Air Confidential Page 1 September 9, 2016 CLARCOR Industrial Air Confidential Page 1 September 9, 2016
Industrial Filtration Basics
CLARCOR Industrial Air Confidential Page 2 September 9, 2016
• CLARCOR Industrial Air is a technology oriented organization specializing in the design and manufacture of high performance filter elements and systems
• Well-established in the air filtration industry
− Comprised of 4 well-organized high functioning organizations
– BHA, Altair, Clark Filter, United Air Specialists
• Advanced technology and innovation leader in the air filtration space
• Broad and profitable product portfolio
CLARCOR Industrial Air Confidential Page 3 September 9, 2016
Filtration Solutions
Gas Turbine Inlet Industrial Filtration Membranes
Gas Turbine Inlet systems and filters for Power Generation and Oil & Gas customers.
Baghouse / Cartridge filters and solutions for Industrial
customers.
Specialty fabrics and microfiltration products.
ProTura
CLARCOR Industrial Air Confidential Page 4 September 9, 2016
Collector Locations
Downward Flow Cartridge Collector
Portable Dust Collector
Cross Ventilation Dust Collector
Portable Weld Fume Extractor
Cartridge Collector
Bag Filter Collector
CLARCOR Industrial Air Confidential Page 5 September 9, 2016
Hood
Inlet Duct
Baghouse
Hopper Airlock
Outlet Duct
Fan
Motor
Typical System
CLARCOR Industrial Air Confidential Page 6 September 9, 2016
• Anatomy of a Cartridge Collector
Dirty Air Inlet
Bin-vent Section
Hopper Section
Leg Section
Tube Sheet
Venturi
Clean Air Exhaust
Access Door
Anatomy of a Cartridge Collector
CLARCOR Industrial Air Confidential Page 7 September 9, 2016
Filter types
CLARCOR Industrial Air Confidential Page 8 September 9, 2016
Media Efficiencies
CLARCOR Industrial Air Confidential Page 9 September 9, 2016
All layers of media exposed to dirt Particles become trapped between layers Not easily pulsed clean
Depth Loading
Media
Dust Particulate
Air Flow
CLARCOR Industrial Air Confidential Page 10 September 9, 2016
Surface Loading
Dust cake forms on surface of media Easily pulsed clean
Media
Dust Particulate
Nanofiber Nanofiber
Air Flow
CLARCOR Industrial Air Confidential Page 11 September 9, 2016
Nanofiber Technology
600X SEM magnification 10,000X SEM magnification
CLARCOR Industrial Air Confidential Page 12 September 9, 2016
Benefits:
Extended filter life = Lower Cost of Ownership
Lower labor costs Fewer filter changes required Less handling required by shipping/receiving Reduce the need for on site storage
Lower disposal costs No need for frequent filter cleaning/recycling
Nanofiber Technology
CLARCOR Industrial Air Confidential Page 13 September 9, 2016
Dirty gas inlet
Fabric filter
Hopper
Clean gas outlet
Inlet baffle
Blowpipe Compressed air header
Support cage
Access Door
Pulse Jet Collector
CLARCOR Industrial Air Confidential Page 14 September 9, 2016
Typical Filters
CLARCOR Industrial Air Confidential Page 15 September 9, 2016
• The steel plate with holes to which the open ends of the bags are connected
• Separates the clean side from the dirty side of the baghouse
Tubesheet or Cell Plate
CLARCOR Industrial Air Confidential Page 16 September 9, 2016
The amount of particulate by weight in a given volume of air, usually specified in grains/cubic foot (or grams/cubic meter)
Grain Loading
1 lb (0.454 kg) = 7000 grains
1 kg = 15,432 grains
CLARCOR Industrial Air Confidential Page 17 September 9, 2016
Air-to-cloth ratio = ACFM ÷ total filter area
Total # filters x sq/ft per filter = total filter area
Air-to-Cloth Calculations
CLARCOR Industrial Air Confidential Page 18 September 9, 2016
Magnehelic* Gauge
*Trademarks are property of their respective owners
CLARCOR Industrial Air Confidential Page 19 September 9, 2016
• Pressure difference between two points in a dust collection system
• Typically measure across a tube-sheet in inches of water column
Instruments used to measure DP are:
– U-tube manometers – Magnehelic* Gauges – Photohelic* Gauges – Pressure Transducers
*Trademarks are property of their respective owners
Differential Pressure
CLARCOR Industrial Air Confidential Page 20 September 9, 2016
• A unit of pressure equal to the pressure exerted by a column of liquid water one inch high at standard conditions (70 degrees at sea level)
• Usually expressed as inches in water gauge (w.g) or water column (w.c)
Inch of Water
CLARCOR Industrial Air Confidential Page 21 September 9, 2016
Fine Particle Emissions Particulate bleed through of conventional felts Aggressive design – high filtration velocities High Differential Pressure – Loss of Airflow High air-to-cloth ratios Poor cleaning mechanism efficiency Extra drag across filter due to primary dust cake.
Common Problems in Pulse Jets:
CLARCOR Industrial Air Confidential Page 22 September 9, 2016
Abrasion Failure Filters located in direct line of inlet gas stream Difficult Installation – Bottom Load Extra downtime to handle multiple and bulky components Accurate installation of multiple filter components Aggressive Cleaning Cycles Accelerated pulse cleaning causes premature flex failure
Common Problems in Pulse Jets:
CLARCOR Industrial Air Confidential Page 23 September 9, 2016
High DP/Loss of Airflow
14” (356mm)
12” (305mm)
10” (254mm)
Static pressure vs. air volume Air Volume
Stat
ic
Pres
sure
80+/- % of designed
capacity
Designed capacity
Potential for increased
airflow
CLARCOR Industrial Air Confidential Page 24 September 9, 2016
Questions?
Thank You