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Dust Collector
Checkout Ebay Auctions For The Cheapest Prices
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 Ray Foster AG03 Alloy Grinder w/ Dust Collector Dental  US $1,339.00
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 75 HP Dust Collector System With Bag House US $9,950.00
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 Ray Foster Dust Collector CDC1 Dental Lab NEW US $509.00
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 Massey Ferguson 135 Air Cleaner Dust Collector 3" Dia. US $3.00
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 Grizzly dust collector US $175.00
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 used dental lab dust collector US $356.00
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 SHOP FOX W1666 2HP 1550CFM DUST COLLECTOR NIB US $127.50
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 Dust collector fan US $800.00
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 Dust Collector 1.5hp, 230/440v, 3 Phase, 6900 Max FPM US $199.99
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 DUSTEK 1000-DB 10 HP 3 BAG DUST COLLECTOR 3 PHASE US $2,000.00
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 Dust collector DCE Dalamatic DLMV 43 sq. ft US $1,950.00
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 Ray Foster AG03 Alloy Grinder w/ Dust Collector Dental US $1,339.00
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 DUST COLLECTOR US $175.00
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 Dental Lab Laboratory Dust Collector Vacuum Cleaner US $253.88
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 Botwinik Bros Dust Collector Wood Shop US $149.99
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 Vaniman Sand Vac dental laboratory dust collector abrasive pre filter US $500.00
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 delta unisaw with dust collector US $800.00
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 Galt-Canadian Single Bag Dust Collector 110v 3/4hp US $195.00
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 220V Dental Lab Dust Collector Vacuum Cleaner w/ 4 bags US $279.88
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 TORIT MODEL 70 CAB Cabinet Dust Collector with HEPA Filter US $2,499.00
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 SHOP FOX DUST COLLECTOR,NO MOTOR,EXCELLENT SHAPE. US $45.00
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 Dust Collector for Dental/Jewelry Lathe US $120.00
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 PSI Dust Collector Bag Set 1 Micron US $49.99
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Here are some more information for Dust Collector:
Fire prevention is cheap compared to the cost of your equipment.
The best fire prevention is a clean shop and good wiring.
Sawdust flies through the air then settles down in hard to find places that do not get cleaned up and creates a fire hazard. Your first investment should be a dust collection system connected to your table saw, miter saw, and anything else that creates sawdust. The dust collection system should be grounded with a copper wire running through the inside of the plastic tube to your saw. Sawdust traveling through the tube causes static electricity, which can start a fire in the tube.
Other ways that fires start in wood shops are usually caused by sparks and bad wiring. If the motor on your table saw shorts out, for example, and throws a few sparks that land in sawdust, you have a fire starter. Same is true for bad wiring in the shop.
A hazard that people often overlook is spontaneous combustion caused by rags soaked with turpentine or other flammable solvents. Always put them in a tightly closed container.
Remember to post a couple of no smoking signs around the shop to remind friends who stop by not to smoke in the shop. A hot ash in the saw dust could mean new equipment and maybe new friends.
With a nice clean shop, and everything in good working condition, there still is a chance of a potential fire. To make sure no fire that might get started gets out of control you need the right fire extinguishers on hand. If you do not have fire extinguishers, you should invest in them as soon as possible. The best fire extinguishers for a wood shop are ones with a rating of 2A10B-C.
Depending on the size of you shop, you should have an extinguisher every 25 feet of walking space. They should be mounted near doors in your shop. Keep all the extinguishers charged and up to date. Dead extinguishers are as good as not having any extinguishers at all.
For more great woodworking tips, plans, magazines, and tools, go to
http://www.leestoolbench.com
Copyright by Lee Bowman
Reverse Flow Dust Collectors for Air Cleaning
Canadian Air Systems Co. is a North American manufacturer of industrial dust collectors and dust collection systems. Dust collecting equipment is 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.
The dust collectors are used extensively in industry for a wide range of applications. They require more space than most other types of air cleaning devices, necessiating outdoor installation in most cases. One of the most widely used type of dust collector is Fabric Dust Collector.
Fabric arresters are high efficiency, medium cost collectors. The effectiveness of passing air or gas through a fabric at low velocity has been recofnized and used for many years in air cleaning devices. Fabric is arranged in envelope or tubular (stocking) shapes. While removal appears to take place by a staining action of the media, in reality dust collection is obtained by building up a mat of the material on the dirty side of the media. This mat provides the actual filtering or straining bed. By means of this bed a high degree of removal is obtained even on sub-micron size particles.
As dust is collected on the fabric, resistance to air flow increases. Periodically the fabric must be reconditioned by shaking, vibrating, reverse jet or reverse-flow collapse which agitates suffitiently to remove the bulk of adhering material allowing it to drop into the dust hopper. In most collectors air flow must be stopped during reconditioning, otherwise released material will be re-entrained and redeposited on the fabric. Sufficient dust must adhere to the fabric to maintain the dust mat needed for maximum efficiency; therfore, after reconditioning the pressure drop will be considerably higher than loss through new fabric. Periodical cleaning of filter media is one of the most important tasks in the dust collector design. Reverse flow cleaning is generally choosen when the volumetric flow of gases is very large.
This method of cleaning inherently requires a compartment design beacause the reverse flow needed to collapse bags entrains dust that must be returned to on-line compartments of the fabric filrh compartment is equipped with one main shut-off valve and one reverse gas valve, whether the system is blown-through or drawn-through. A secondary blower and duct system is required to reverse the gas flow in the compartment to bcleaned. When a compartment is isolated for cleaning, the reverse gas circuit incrases the volumetric flow and dust loading through the collector's active compartments.
The fabric medium is reconditioned by reversing the direction of flow through the bags, which partially collapse. After cleaning, the reproduction of gas is dislodged dust to fall into the hopper.
Reverse flow cleaning reduces the number of moving parts in the fabric filter system - a maintenance advantage, especially when large volumetric flows are cleaned. However, the cleaning or reconditioning is less vigorous than other methods, and the risidual drag of the reconditioned fabric is higher. Reverse flow cleaning of dust collectors is particularly suited for fabrics like glass cloth, that require gentle cleaning. Reverse flow dust collecting bags are usually 8 to 12 inches in diameter and 22 to 33 feet long and are generally operated at low velocities in the 2 to 4 fpm range. As a consequence, reverse air dust collectros tend to be substantially larger than pulse jet dust collector designs of similar capacity.
For ambien air applications, a wooven cotton of polypropylene fabric is the usual selection for reverse flow cleaning. For higher temperatures, wooven polyester, glass fiber, or trademarked fabrics are often used. In recent years glass cloth has come into wide use because of silicone treatment of the glass fibers and employment of reverse flow techniques for cleaning. Silicone treatment provides a lubricant between fibers and increases fabric life.
Reverse flow dust collectors are limited to air conditions dry enough to prevent condensation or free moisture deposition on the fabric. With hygroscoping materials, there will be a bonding tendency between particles and fabric under high relative humidity even though no condensation takes place. Maximum recommended temperature for cotton fabric is 180 F, for wool 200 F. Higher temperatures can be handled by using synthetic materials including nylon or orlon fabrics as well as glass cloth and, occasionally, fine metallic mesh. The synthetic fabrics mau be used up to 300 F while glass cloth is acceptable to 550 F.
Rate of flow through the media varies with dust collector type, application and dust concentration. Ratings are usually selected so pressure drop will not exceed 5" WG. The smaller the particle, the more rapid the resistance rise for a given loading. For the same air flow rate and dust loading, resistance rise increases directly in proportion to time.
For additional information please refer to http://www.nis-co.com/0/Index.html.
Oleg Tchetchel
Air Systems Designer and Engineer
Canadian Air Systems
http://www.nis-co.com
http://www.nis-co.com/1/Index.html
About the Author
Chemical Physics Engineer
What is a baghouse? is it the same as a Dust Collector?
Is it called a dust collector or Baghouse?
I found this site to be very informative. www.Baghouse.com
It is like a dust collector on steroids. It is a larger more robust dust collector that has bags that can have their dust emptied from them, that can be monitored for resistance to exhaust air passing through them and that can be swapped-out on line. The particulates that are collected are heavier and hotter than just "dust."
Rare signed first edition of George Orwell work sold for £86,000
A rare signed first edition of the first full-length work by author George Orwell has sold for £86,000, auctioneers said.
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