Utility Menu

Powder/Bulk Solids

The Source for Dry Processing and Bulk Handling Technology

Technology Review

July 9, 2007

Air Filter
Available in three ASHRAE efficiencies (MERV 11, 13, and 14), the Riga-V air filter offers greater dust-holding capacity and lower pressure drop than comparable filters. A high-lofted synthetic media in a proprietary V-pleat configuration optimizes performance. Benefits include superior dust-loading and airflow characteristics for longer service life and lower average energy costs. The frame components create a rigid media-support system to ensure filtration performance under varying airflow conditions. The filter’s compact, efficient design also weighs up to 30% less than similar products for ease of handling and disposal. It comes in a variety of sizes in either box-style or peripheral-header configurations.
Camfil Farr, Riverdale, NJ 866-422-6345 www.camfilfarr.com

Continuous-Duty Industrial Vacuum System
The Model 1500 continuous-duty industrial vacuum cleaning system is designed for the reclamation and cleanup of difficult materials such as brick, pigments, metal chips, and other harsh and heavy materials. This updated model is portable and maneuverable by a single operator. It is mounted on a heavy-duty steel frame complete with two 12-in.-diam wheels and dual swivel casters with a tow-bar handle. It is made of high-quality carbon steel and comes with a blue epoxy finish.
Vac-U-Max, Belleville, NJ 973-759-4600 www.vac-u-max.com

Misting Nozzles 
MicroWhirl misting nozzles eliminate the dripping problems and fragility of impingement nozzles and offer improved durability in a wide range of applications, including turbine cooling, odor and dust control, humidification, scrubbing, and coating. The nozzle’s rugged, pinless design provides high atomization with spray characteristics of a mist at low pressure and heavy fog at high pressure. Design features include a 70-µm polypropylene filter and Viton O-ring seal, cone-shaped fog spray pattern, and flow rates of 0.009 to 0.151 g/min. The nozzles are available in 303 or 316 stainless steel with an optional safety-wire hole.
BETE Fog Nozzle Inc., Greenfield, MA 413-772-0846 www.bete.com

Blinding Control System
The Ultrasonex blinding control system is a field-proven system for reducing blinding and bridging when screening difficult or sticky materials such as metal powders, powder paints, pharmaceuticals, powder coatings, plastic resins, toner powder, food, and various chemicals. It is available on the company’s new screeners and can be field-retrofitted to existing screeners. The system is capable of screening through meshes as fine as 20 µm at unusually high capacity and efficiency. By minimizing mesh blinding and bridging, the system ensures that powders are screened through the correct aperture size required, providing accurate separations, higher throughput, consistent product quality, and longer mesh life.
Rotex Inc., Cincinnati, OH 800-453-2321 www.rotex.com

Wall and Ceiling Coating System
Field-proven for connecting unlike substrates without the use of joints or sealants, the Descoglas RF reinforced wall and ceiling coating system wraps walls and ceilings into the floor, eliminating corners, cracks, and crevices that harbor dirt and bacteria. Suited for a variety of substrates, the coating utilizes 100%-solids, fiber-filled thermosetting resin for simplified application and accelerated turnaround. It combines low-VOC, high-performance polymer technology with reinforcement fibers that are built directly into the coating. The system produces a seamless, aesthetically pleasing surface in fewer installation steps than conventional reinforced wall coatings.
Valspar Flooring, Wheeling, IL 800-637-7793 www.valsparflooring.com

Blower Package with Polymer Enclosure
The BB52C features an Omega Plus tri-lobe blower in a molded polymer shell and a space-saving design that makes it small and quiet. Like all Com-paK Plus units, it comes completely assembled with blower, motor, and silencers to minimize installation costs. All maintenance points, including the automatic belt-tensioning device, oil drains, and filter elements, are accessible through the wide-opening canopy on the front. All power and process connections are at the rear, allowing multiple units to be mounted side by side with no need for additional access clearance. The scratch-, dent-, and corrosion-resistant enclosure also lowers noise levels to 75 dBa or less.
Kaeser Compressors Inc., Fredericksburg, VA, 800-777-7873 www.kaeser.com

Custom Shaft Seals
Meco AH-series custom shaft seals are ideal for abrasive-powder processes in food and pharmaceutical industries where frequent product changes and washdowns are required. Designed to simplify installation, routine cleaning, and maintenance, the seals are available fully split for quick installation and removal for cleaning. They also feature flush water-inlet and drain ports. Heavy stainless plate stators ensure flatness and long life, despite extensive handling. The seals have a simple adjustment mechanism and monitoring provisions, allowing operators to perform preventive maintenance. They are used on ribbon blenders, paddle mixers, screw conveyors, dryers, bucket elevators, and other process machinery.
Woodex Bearing Company, Inc., Georgetown ME 800-526-8800 www.woodex-meco.com

Miniature Rotary Batch Mixer
The MX-5-SS miniature rotary batch mixer blends ingredients in ratios as extreme as one part per million with 100% uniformity in less than three minutes, regardless of disparities in the bulk densities, particle sizes, or flow characteristics of batch ingredients. The mixer features a rotating drum with proprietary mixing flights that tumble, turn, and fold material gently and rapidly. Unlike stationary mixing vessels that leave a residual “heel” of material after discharge, the rotating vessel and internal flights reportedly lift and direct the entire batch through a plug gate valve for complete evacuation with no residual material, improving product quality and process control while facilitating rapid, thorough cleaning.
Munson Machinery Company, Inc., Utica, NY 800-944-6644 www.munsonmachinery.com

Spill-Control System
The spill-control system’s color coding enables the user to identify a spill and attack it with a Spill Pac. The portable packs hang on a rugged Pac Rac for staging Spill Pacs where they are needed most. Each Spill Pac comes with a highly visible 2 × 4-in. color-coded label that can be placed on machinery or equipment for which you need a specific spill-control product. For example, a magenta-colored battery acid label can be placed on the outside of the battery compartment of a forklift to eliminate time and confusion in determining which Spill Pac is the right one to use for the spill. Each Spill Pac contains spills up to 10 gallons and prevents larger spills from spreading. They are vacuum-packed in a tough, foil-laminated bag.
Andax Industries LLC, St. Marys, KS 800-999-1358 www.andax.com

Iris Valves
These iris valves control the gravity discharge of free-flowing materials from bulk bags. A form-fitted fabric provides a dust-tight seal and a product barrier that prevents material contact with the valve’s actuating parts or leakage to atmosphere. The valves are ideal for handling delicate, friable, or explosive materials and feature stainless-steel control rings with metal trigger locks and handles. This eliminates the durability concerns of plastic control rings, trigger locks, and handles. Options include infinite position or quick-lock actuation, stainless-steel or aluminum body, wear liners, mounting pattern, and sleeve material.
Salina Vortex Corp., Salina, KS 888-829-7821 www.vortexvalves.com

Stainless-Steel Sifter
The stainless-steel Tru-Balance sifter is a sanitary gravity-flow atmospheric-pressure sifter. All product-contact surfaces are constructed of 4B stainless steel and are welded to eliminate crevices, rivets, and nuts or bolts. Featuring a boxless design with nest-together sieve frames that provide rapid access for sieve removal and replacement, this stacked-screen construction offers several advantages: floor-space conservation, highly efficient material grading, easier handling because of smaller frames and screens, screens that are less likely to sag, and the option of mounting on the floor or suspending. Three models are available that utilize gentle gyratory motion and the Tru-Balance drive mechanism. A pneumatic sieve compression system simplifies sanitation and maintenance, while an enhanced guard package provides greater personnel protection.
Great Western Manufacturing, Leavenworth, KS 913-682-2291 www.gwmfg.com

Micro Ball Thrust Bearings
This new line of micro thrust bearings is available in carbon and stainless steel in metric sizes 4 to 12 mm ID, with custom sizes available on request. All designs incorporate the optimum combination of a molded nylon retainer with hardened-grade steel balls and washers. The self-lubricating property of nylon, combined with the hardened-steel high-grade balls, reduces friction, and the microfinish thrust washers reduce noise and increase durability. The design of the molded-nylon retainer captures the balls in precision-molded pockets, ensuring smooth, free-turning, quiet operation. Retainers are injection-molded 6/6 nylon that are held to rigid design criteria, ensuring consistent quality. Hardened-steel balls have a grade 100 tolerance (±0.0025 mm) and a 10 microfinish.
Torque Transmission, Fairport Harbor, OH 800-544-6642 www.torquetrans.com

Dual-Stage Temperature Switch
The Series TSS2 dual-stage digital temperature switch offers a three-digit red LED display for easy viewing at a distance. The unit accepts up to two PTC thermistor temperature sensors to accurately control temperatures up to 302°F. The switch offers two independent SPST 8-amp relays and is easily customized via 34 user-programmable parameters. For quick programming of multiple switches, a configuration key is offered as an accessory.
Dwyer Instruments Inc., Michigan City, IN 800-872-9141 www.dwyer-inst.com

Large-Bag Metal Detectors
With aperture sizes typically in the area of 26 in. wide by 12 in. high to accommodate bulk packs of 50 to 100 lb, the large-bag system can achieve specifications of 0.9- to 1.5-mm ferrous and 1.4- to 2.0-mm stainless-steel detection when operating in the production environment. Traditionally, larger aperture sizes mean reduced sensitivity in the world of metal detection. However, the Phantom large-bag system defies this law by using a specialized coil structure and sets a high standard for sensitivity levels. All Phantom systems utilize the latest digital signal processor technology for the most accurate and high-speed detection results.
Fortress Technology, Toronto, ON, Canada 888-220-8737 www.fortresstechnology.com

Stainless-Steel Hose and Liner
The Metal Hose to Go program saves downtime and adapts to new or replacement service applications. Ready-to-use 19-ft hose works with pneumatic trailers and in-plant unloading applications. Fittings do not have to be welded, and the hose accepts aluminum or stainless threaded cam-locks. Assembly can be put into service immediately after couplings are properly fastened to the hose.
Kuriyama of America Inc., Schaumburg, IL 847-755-0360 www.kuriyama.com