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Mixing & Blending Spotlight - December 08

November 20, 2008

Pneumatic Blending Systems
Pneumatic blending is one of the quickest, cleanest, and most efficient methods to obtain homogeneous batches of powdered, granular, or abrasive materials in transporters, atmospheric bins, or storage silos. These pneumatic blenders are equipped with 6 or 12 wear-resistant aerators mounted around a housing cone. These aerators inject gentle blasts of compressed air into the center of an unblended batch at various angles to gently lift the materials upward and outward until the blending target is achieved. Built with few moving parts, the blenders have long service lives and require minimal maintenance.
Nol-Tec Systems Inc., Lino Lakes, MN 651-780-8600 www.nol-tec.com

Large-Capacity Mixing System
The Jumbo Quik Mix homogeneously mixes 750 cu ft of pelletized material in less than 30 minutes. It was designed to provide a homogeneous mix of large-volume dry material batches with its vertical mixing screw and material dispersing paddle. The integrated system includes a lift and seal container discharger to transfer material from gaylord containers into the surge bin. The lift and seal design provides dust control and prevents foreign materials from outside of the container from being dumped in with the intended product. From the surge bin, the material is pneumatically conveyed into the top of the unit. After the batch mixing cycle, the material is discharged into either gaylords or a pneumatic conveying pickup point.
NBE Inc., Holland, MI 616-399-2220 www.nbe-inc.com

Powder Dispersing/Induction Machine
The Megatron MT-VP powder dispersing and induction machine can be used in pilot plant and production environments to efficiently disperse powders, regardless of density, into a flowing liquid. The machine’s advantage is due to the generated strong suction capacity, as unwanted lumps are avoided during the powder induction and wetting phase. This eliminates plugging of the powder supply line as well as improving the dispersing efficiency. The additionally generated high vacuum permits a dust-free incorporation of light fluffy powders, as well as heavy metal powders. This machine is used in chemical, pharmaceutical, and food industries.
Kinematica Inc., Bohemia, NY 631-750-6653 www.kinematica-inc.com

Horizontal Mixer
This horizontal Ploughshare mixer and jacketed vacuum dryer is easy to clean. The full-access door across the front of the mixer provides for greater access to perform frequent cleaning operations. This design is available on batch or continuous mixers and provides a benefit to manufacturers that are concerned with cross-contamination from batch to batch in their operation due to allergens, flavors, colors, and formula changes.
Littleford Day Inc., Florence KY 800-365-8555 www.littleford.com

Mixers and Blenders
Gardner mixers and blenders feature the easy-clean cantilever shaft. Available in various designs with a choice of plough, paddle, or interrupted spiral agitator, the large top and end door allow for trouble-free cleaning and inspection. The completely contained mixing media provides a hygienic environment for dry, semidry, or moist powder applications.
Kemutec Powder Technologies, Bristol, PA 215-788-8013 www.kemutec.com

Fluidized Zone Mixer
The Bella fluidized zone mixer achieves fast, high-capacity, low-shear, precision mixing of either dry bulk solids or liquids with solids. Regardless of particle size, shape, or density, materials are mixed with a fast, efficient, and gentle action, with a typical mixing time of 60 seconds or less. A weightless zone created by low-speed counterrotating shafts generates low friction without shear. This makes it ideal for fragile products that cannot tolerate rough handling. Even flakes or spray-dried bodies remain intact. The Bella XN mixer includes twin bomb-bay door openings for fast, efficient discharging and to minimize segregation during discharge. It is available in stainless steel for sanitary applications. Custom sizes, finishes, and materials of construction are available upon request.
Dynamic Air Inc., St. Paul, MN 651-484-2900 www.dynamicair.com

Blender Conveyors
Stationary and portable CB-series blender conveyors combine bulk carrier unloading, transfer, and blending capabilities in one vacuum-pressure unit. They are sized for 5–20-plus tn/hr and can handle powdered, granular, or pelletized abrasive materials that are friable. Equipped with automated controls and load cells, these machines blend products from multiple sources and convey them to one or more destinations using a single 15-psig positive-displacement blower. Their proprietary semidense design results in low line velocities and high material-to-air ratios that reduce wear and product degradation.
Cyclonaire Corp., York, NE 888-593-6241 www.cyclonaire.com

Sanitary Rotary Continuous Mixer
This mixer blends bulk ingredients in ratios as extreme as 1 part per million with 100% uniformity regardless of disparities in the bulk densities, particle sizes, or flow characteristics of ingredients. Capacity ranges from 85 cu ft/hr at 1-minute residence time to 42 cu ft/hr at 2-minute residence time. Mixing flights in slowly rotating cylinders distribute ingredients thoroughly and gently while eliminating internal restrictions where material could plug or accumulate. An optional internal spray line allows uniform introduction of a liquid additive for spray coating, de-dusting, perfuming, agglomerating, and conditioning of materials.
Munson Machinery Company, Inc., Utica, NY 800-944-6644 www.munsonmachinery.com

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