Set Collectors

Cartridge Dust Collectors for Air Cleaning

Canadian Air Systems Co. is an engineering company of industrial cartridge type dust collectors. Dust collectors are available in numerous designs utilizing a number of principles and featuring wide variation in effectiveness, initial cost, operating and maintenance expense, space, arrangements and material of construction. One of the most efficient dust collectors designs is a cartidge style dust collector.

Cartridge dust collector is a self-cleaning dust collector that uses filtering cartridges made out of synthetic fibers and a chemically treated cellulose, which is capable of collecting sub-micron particles without creating an excessive pressure drop in the system. It uses an air-jet cleaning system to maintain high filtration efficiency with a constant pressure drop, and doesn’t need a system shutdown to clean the filter cartridges. The filtration velocities in cartridge dust collectors allow the use of more compact units, reducing installation and maintenance cost.

In this type dust collector the dust laden air comes in the side of dust collector hopper, under vacuum or pressure, and filters through the cartridges exiting through venturis into the clean air plenum. The clened air then can be exhausted outside or recirculated.

For each row of filtration cartridges, there is a diaphragm valve, connected to an air tank which is opened in sequence by a solenoid valve with electronic controller. Short pulses of compressed air are ejected through calibrated orifices in the blow tubes, into the venturi, creating a pressure wave along the cartridge – to break the accumulated dust cake in the filter media. The elctronic controller allows compressed air only to one row of cartridges at any given moment, so that dust collector can operate continually. The cleaning cycle is also initiated by monitoring differential pressure across the tube sheet that separates the plenums. As the dust accumulates on the surface of the filter, the differential pressure across the media increases. At a certain value, the solenoid is triggered and cleaning happens. Triggering the cleaning cycle at a predetrmined differential pressure setting eliminates cleaning during periods of light dust load, increases bag life, and reduces the use of compressed air.

The maintenance of cartridge dust collector is limited to an annual replacement of the set of cartridges. Filter material is selected based on the operating temperatures, type and size of duct particles, dust collector capacity. At ambient temperature, majority of pulse-cleaning collectors use 10 to 14-oz polyester felt media. Synthetic materials have better temperature resistance than natural materials. At elevated temperatures up to 500 F, fiberglass bags can be used. Nomex is well suited to the 250 to 400 F range. Surface finish of the bag enhances release of sticky dusts. Applying a silicon finish layer to the bag is commonly used. Special coatings provide a membrane with tiny perforations that achieve very high filtration efficiencies. Pleated filter elements allow for more surface area and are often retrofitted into the system.

The following factors determine the size of cartridge dust collector:

* Concentration and particle size of contaminant;
* Degree of collection required;
* Characteristics of air or gas stream;
* Characteristics of contaminant;
* Methods of disposal.

For abrasive or corrosive applications, special cmaterials of construction are available, such as abrasion resistant carbon steel, stainless steel, special alloys, rubber liners, etc… Many sizes and arrangements of cartridge dust collectors are available from Canadian Air Systems to meet specific capacities and space requirements.

For additional information please refer to http://nis-co.com/dustcollector/Index.html.

Oleg Tchetchel
Process Engineer
Canadian Air Systems
http://nis-co.com/index.html
http://nis-co.com/dustcollection/Index.html

About the Author

Chemical Physics Engineer

Harry Potter Literary Collector’s Card Set

Beer Bottle Cap Catcher – Stainless Steel $9.99 Compliment your wall mounted bottle opener! Install one of these handy cap catchers underneath to keep the caps from falling to the floor. Made of stainless steel. In stock and ready to ship. Features: Made of 1mm thick stainless steel. Predrilled mounting holes. Specs: Dimensions: 3 1/2″H x 5 1/2″W x 2 1/2″D. Includes: Mounting screws….

Big Mouth Toys Kool Koozie, The Perscription $8.00 The Perscription Drink Koozie. A cold beer is just what the doctor ordered! Our new hilarious foam can coozie / cooler is both fun and useful. It will keep any beverage can or bottle icy cold, but it keeps your hands warm and dry….

Libbey Coca Cola 16-Ounce Classic Cooler 6-Piece Set, Georgia Green $12.99 Product FeaturesUse it for coca cola, coke floats or other beveragesGenuine tumbler designHolds 16-ounce capacitySafe to use in dishwasherdishwasher safe Coca Cola is the most recognized brand in the world. The genuine 16 ounce Coca Cola tumbler 6-piece set by Libbey is the classic shape and georgia green which makes it a great gift for collectors of Coca Cola memorabilia….

The Last Waltz (Special Edition) $6.99 Martin Scorsese’s acclaimed rockumentary of The Band’s 1976 “farewell” performance blends concert footage, interviews and session recordings into one of the greatest concert films of all time. Guests include Neil Young, Eric Clapton, Emmylou Harris, Muddy Waters, Joni Mitchell, Van Morrison, Neil Diamond, Dr. John, The Staples Singers, Ringo Starr, Bob Dylan, and Ronnie Hawkins. 117 min. Widescree…

Graceland 25th Anniversary Collector’s Edition Box Set (Amazon Exclusive) $85.19 In 1986, Graceland sold 14 million copies worldwide and garnered both the Album and Song of the Year Grammy in 1987. Simon and the members of Ladysmith Black Mambazo performed on Saturday Night Live and appeared on the cover of Rolling Stone. It generated three hit singles and it kept Paul Simon and the Graceland tour on the road for five years. Its music was heard across the globe. Today, its mus…

Greatest Hits I, II & III – The Platinum Collection (3CD) $14.99 All products are BRAND NEW and factory sealed. Fast shipping and 100% Satisfaction Guaranteed….

Alien Anthology [Blu-ray] $44.25 In space no one can hear you kvell as you open this deluxe collector’s set. Along with “Alien” (1979 theatrical version and 2003 director’s cut), “Aliens” (1986 theatrical version and 1991 special edition), “Alien 3″ (1992 theatrical version and 2003 special edition), and “Alien Resurrection” (1997 theatrical version and 2003 special edition), there’s also two bonus discs bursting with extra featu…

Star Wars: The Original Trilogy (Episodes IV – VI) [Blu-ray] $34.74 The Star Wars trilogy had the rare distinction of becoming more than just a series of movies, but a cultural phenomenon, a life-defining event for its generation. On its surface, George Lucas’s original 1977 film is a rollicking and humorous space fantasy that owes debts to more influences than one can count on two hands, but filmgoers became entranced by its basic struggle of good vs. evil “a lon…

Alien Anthology [Blu-ray Import] $31.99 It’s hard to see just where the Alien Anthology Blu-ray boxset could have been improved. Nominally a collection of the four main films in the franchise, what’s actually been bundled together here is one of the finest DVD or Blu-ray boxsets to date, boasting a series of features that genuinely go into a lot of depth about the movies themselves. And what movies they are. Alien and Aliens are both ex…

Set 3 Ninja Stealth Black Throwing Knives with Nylon Case $6.85 For sale are the 3 full tang Ninja Kunai throwing knives, like those seen in Naruto. Made of 440 stainless steel, the handle and blade are of one piece. The blade is slightly sharpened, and with 4″, the item is made to puncture. The handle is wrapped nylon. Included is the nylon sheath, which holds 3 ninja kunais. This is a favorite of ninja fans….