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Pneumatic Conveying Focus

January 4, 2012

Parallel Bore Rotary Airlock
The MSRP Series parallel bore rotary airlock is designed so that the maximum number of blades remain in contact with the body at one time without affecting throughput. The substantial throat opening at valve entry allows high pocket filling efficiency. There is minimum clearance at rotor tips and sides with body. Robust body construction prevents distortion. Sizes range from 6 to 16 in. with square or round flange patterns. The valve is suitable for operation up to 750ºF and conveying pressures of 20 psi. Bush & Wilton Inc., Charlotte, NC 704-573-6858 www.bushandwilton.com

Air-Vey Magnets
Air-Vey magnets are designed to remove ferrous contaminants from products in dilute-phase pneumatic conveying systems operating at 15 psi or less. These units are used to ensure product purity and protect process equipment. The flow-through area of the housing is engineered to maintain the same product velocity with no appreciable drop in pressure. The magnets install easily in horizontal, vertical, or angled positions with compression type couplings or weld in place. Inside the stainless steel housing is a powerful cylindrical shaped magnet with a cone-shaped nose. As material enters the housing, the nose cone diverts the material around the cylindrical magnet where it passes through the magnetic field and ferrous contaminants are drawn to the magnetic surface. Ferrous contaminants are safely held in place as the cleaned product exits out the opposite end of the housing. To clean captured ferrous contaminants remove the access door from the housing by opening the latches. Puritan Magnetics Inc., Oxford, MI 248-628-3808 www.puritanmagnetics.com

High-Capacity Conveying
The DPG-B Series gravity-loaded bottom-discharge dense-phase conveyors are ideal for moving powdered, granular, or pelletized friable and abrasive materials. They are rated up to 100+ TPH and provide high material-to-air ratios and low line velocities, resulting in smaller line sizes, lower air consumption, reduced dust collection, and lower capital investment and operating costs. Abrasive wear and particle degradation are also minimized. Cyclonaire Corp., York, NE 888-593-6241 www.cyclonaire.com

Heavy-Duty Rotary Airlock
This heavy-duty drop-thru rotary airlock is suitable for use on both gravity and pneumatic conveying applications up to 20 psi. The airlocks are available with both round and square flanges and are of heavy-duty design with outboard bearings and gland type shaft seals. Numerous rotor options are available including open and closed end, fixed or adjustable blades, bevel edges, scalloped pockets, reduced capacity, Teflon-coated, and flexible rubber tips. Sizes range from 3½ to 36 in. Blowing seals, offset, dust collection, and special size airlocks are also available, in addition to slide gates and diverter valves. Rotolok Valves Inc., Monroe, NC 704-282-4444 www.rotolok.com

Vacuum Conveyors
Multijector vacuum conveyors safely transport powders, granules, pellets, capsules, tablets, and other bulk materials under vacuum to supply packaging lines, mixers, filling machines, tablet presses, or any other kind of process equipment or container on demand. These conveyors work seamlessly with manual suction, feeding hoppers, bag rip and tip stations, or bulk-loading devices transferring to several filling machines or feeding raw materials from various locations to load one central mixer. The all stainless steel construction and no tools disassembly make them a natural choice for multiple product changeovers where ease of cleaning is required. These ATEX-certified units can be used for potential explosion-proof areas. Volkmann Inc., Hainesport, NJ 609-265-0101 www.volkmannusa.com

Four-Way Wye Line Diverter
The patented Quantum Series 4-Way Wye Line Diverter is specifically engineered to handle dry bulk solids in pneumatic conveying systems. The diverter can direct dry bulk material from one source to four destinations, or converge from four sources to one destination. Precision laser cutting and bending technology is used. It provides several advantages over traditional flapper and rotating tunnel style diverters and eliminates trouble spots in conventional diverters. Vortex Valves North America, Salina, KS 785-825-7177 www.vortexvalves.com

Low-Energy Airlocks
MPSH, MPSJ, and MPSN airlocks offer a wide range of applications. The robust design and workmanship of the airlocks improve operating reliability and reduce running costs. Key features include: low energy consumption; elimination of chain re-lubrication; consistent air pressure due to the minimal clearance between the rotor and the housing; uniform bearings and seals for each size of airlock; maximum pressure differential of 1.5 bar. Bühler Inc., Minneapolis, MN 763-847-9900 www.buhlergroup.com

Pneumatic Line Equipment
This pneumatic line housing (PLH) design bucks the industry trend of a single, center-flow cartridge circuit. The PLH incorporates a series of 1-in.-diam 50 MGOe rare earth tubes on staggered centers, which ensures that all product has repeated contact with the magnets. The holding strength of the Bullet magnet is improved with its newly introduced stripper collar that is used to wipe metal contamination from the magnet. This addition has increased the ability to capture and hold metal fines and weakly magnetic steel by almost 30%. The Exposed Pole Tube is designed to improve product purity by capturing both large ferrous metal contaminants and small, weakly magnetic fines. It is intended for use where product degradation or fibrous materials are being conveyed, since the magnetic circuit does not impede product flow. Industrial Magnetics Inc., Boyne City, MI 888-582-0821 www.magnetics.com

ECO Phase Conveying
ECO phase is a new design that improves the way material and air interact in the initial starting point of a pneumatic conveying system. This patent-pending process provides the efficiency, velocity, and transfer rates of a dense-phase system, yet can provide material on a continuous basis like a dilute-phase system, and uses a standard PD blower package to deliver energy cost savings when compared to the two traditional types of pneumatic conveying. Smoot, Kansas City, KS 800-748-7000 www.magnumsystems.com

Pneumatic Bulk Bag Discharging System
This skid-mounted bulk bag discharging system with positive pressure pneumatic conveying system transfers material from bulk bags to silos and other bulk storage facilities on islands or other locations unable to receive large volumes of bulk material by rail or truck. A cantilevered I-beam with electric hoist and trolley lifts and positions bulk bags. A Spout-Lock clamp ring forms a seal between the bag spout and the equipment, while a Tele-Tube telescoping tube maintains downward pressure on the clamp ring and bag spout, elongating the bag as it empties/elongates to promote complete discharge. Flexicon Corp., Bethlehem, PA 888-353-9426 www.flexicon.com

Vacuum Conveying Systems
Vacuum conveying equipment and systems are designed for food, pharmaceutical, and chemical industries. Specializing in handling bulk powders, the vacuum conveyors range in convey rates from 500 to 5000 lb/hr and more. Designed for free- and non-free-flowing powders, they can be equipped for use with any application. Loading mixers, volumetric and gravimetric feeders are just a few solutions. Vac-U-Max, Belleville, NJ 973-759-4600 www.vac-u-max.com

Pipe Elbows
To solve the problem of wear of the pneumatic conveying system, a complete range of wide and short angle pipe elbows made of Sint engineering polymer is available. Extracurve (wide angle) and Extrabend (short angle) fitted as a link in pneumatic ducts offer flexibility and resistance to wear in pneumatic conveying applications in various industries, including food and plastics processing. WAMGROUP S.p.A., Cavezzo, Italy +39 0535 61 81 www.wamgroup.com

Easy Clean Slide Gates
Series K easy clean slide gates for applications where frequent cleaning is required allow easy and quick disassembly without tools. Constructed from 304 stainless steel with UHMW pressure plates, they are available in sizes from 2-8 in. with tube stub connections, and provide pneumatic actuation for gravity applications. Options include: PET or Teflon pressure plates; sanitary ferrule connections; 316 stainless steel construction; and manual hand crank or wheel actuation. Two-week delivery times remain standard. Lorenz Conveying Products Corp., Cobourg, ON, Canada 800-263-7782 www.lorenz.ca

Dense-Phase Pneumatic Conveying Systems
These pneumatic conveying systems handle a wide range of materials and bulk densities at rates from 500 lb/hr to 450 tn/hr, over distances to 6000 ft. Each system is custom-designed from one of 16 different conveying concepts to provide a conveying solution that fits the process. One conveying concept, the Full-Line Concept system, has advantages over the more traditional dense-phase concepts with regard to degradation and energy consumption. In addition, it is clean and totally enclosed and can be fully automated to convey to packaging or process bins. Dynamic Air Inc., St. Paul, MN 651-484-2900

Vacuum Conveyors
Pneumatic conveying equipment offers more versatility than traditional mechanical types of conveying systems with virtually no limitation on capacity, product type, distance, or routing. Pneuvac vacuum conveying systems are ideal for long-distance conveying and where product degradation is a concern. Capabilities include vacuum conveying of up to 6000 lb/hr of material at distances up to 300 ft. Vacuum conveyors assure dust-free operation since the product is conveyed under vacuum within the conveying line and any leakage is into, rather than out of, the conveyor. Spiroflow Systems Inc., Monroe, NC 704-291-9595 www.spiroflowsystems.com

Vacuum Conveying Systems
Designed for a wide range of uses, these hygienic vacuum conveyors transport powders and small materials without segregation or damage. Integrated with pneumatically driven pumps, these conveyor systems quietly transfer powders and granules safely and efficiently for the food and fine chemical industries. Ideal for batching and weighing systems, the conveyors are made of FDA-compliant stainless steel and have an operator-friendly, low-maintenance design. Conveying rates from as little as a few pounds per hour up to 5 tn/hr are now simple tasks. IEDCO, Turnersville, NJ 856-728-6400 www.iedco.com

Pneumatic Conveying Vacuum Receivers
These vacuum sequencing central receivers are designed for pneumatically conveying powder, pellets, and granular materials. Series 2400 receivers provide a high-capacity sequencing system primarily used on multiple destination applications where larger conveying rates are required. Conveying rates range from 720 to 15,000 lb/hr. P-Series receivers are ideal for applications requiring a higher degree of sanitary requirements. Three models include the P10 conveying up to 1320 lb/hr, the P30 conveying up to 4000 lb/hr, and the P100 for up to 8800 lb/hr. K-Tron Process Group/K-Tron Premier, Salina, KS 785-825-1611 www.ktron.com

Side-Entry Rotary Airlock Valve
The side-entry rotary airlock valve is used in applications where product shearing is a concern. The valve name derives from the offset inlet and outlet flanges, where the product enters the side of the rotor instead of the top. On a normal valve, shearing takes place as the rotor rotates into the housing. When these two straight edges meet on a typical drop thru rotary airlock, this provides a pinch area where the product can shear and/or jam. With the side-entry rotary airlock, the product is caught on the upswing of the rotor blades so that the product is constantly falling away from the shear point. The rotor pockets also do not fill up as completely, additionally reducing the likelihood of shearing. Lastly, the throat has a V shape that helps push product out of the way. Sizes range from 6-20 in. Carolina Conveying Inc., Canton, NC 828-235-1005 www.carolinaconveying.com

Plug Diverters
These plug diverters have been specially designed to route powders and pellets with minimum degradation in pneumatic conveying systems. The design of the diverters consist of an aluminum housing and end covers with all product contact surfaces made from stainless steel AISI 316. A smooth passage of product is guaranteed by effective sealing and complete obstruction free passage. The design conforms to legislation regarding workplace safety. DMN Inc., West Memphis, AR 870-733-9100 www.dmn-inc.com

Pneumatic Conveying Component Online Resource
The NBE Components & Accessories Resource is a secure, online tool specifically for professionals involved in the operation and maintenance of pneumatic conveying systems for dry bulk material. The Resource offers immediate access to more than 1750 SKUs in 60 product categories. Components, parts, and accessories are available for a wide variety of pneumatic conveying applications. In addition to components, parts, and accessories, the Resource makes available the applications expertise of NBE dry bulk material handling engineers who will evaluate upstream and downstream process influences to ensure the products provide optimal pneumatic conveying efficiency and long-term operation. National Bulk Equipment Inc., Holland, MI 616-399-2220 www.nbe-inc.com

Pneumatic Conveying Solutions
Pneumatic conveying and de-dusting solutions are available for granules and powders. In addition to dilute- and dense-phase pressure conveying systems, Strandphase technology is available for gentle conveying of granular products. The technology uses moderate velocities to prevent breakage and attrition of the conveyed product. Low-leakage, energy-saving rotary valves are available for all types of pressure conveying. These new valves have more vanes and expanded rotor tips (patent pending) which result in low air leakage. Pelletron Corp., Lancaster, PA 717-293-4008 www.pelletroncorp.com