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Powder & Bulk Solids, May 2014

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www.PowderBulkSolids.com 33 M a y 2 0 1 4 to kinetic (grinding) energy in the mill. By using steam directly, the process becomes two or three times more energy efficient. Grinding with steam is greener. The Future of This Technology The needs of companies develop- ing dry materials in the nanometer size range can be met with the use of steam jet milling technology. Steam jet milling technology can apply to ceramics, alternative en- ergy, optical glass, pigments, and industrial minerals markets. And new markets will be developed based on this new technology. Further developments in grind- ing are always possible and are ongoing, but steam jet milling in a mill with an integrated dynamic air classifier is the pinnacle (for now) in dry grinding technology. Equipment manufacturers are constantly challenged to find new methods of producing finer and finer materials, and doing this with increased energy efficiency. Stephen Miranda is sales director, Netzsch Premier Technologies LLC, Exton, PA, a North American subsidiary of the globally operated group of Netzsch companies. Netzsch is a leading manufacturer of wet grinding and dispersing machinery, including media milling, dispersing, and de-aerating, from lab research to full-scale production. For more information, visit www.netzsch- grinding.com. 2012 U S Electricity Generation by Source Source Percent of US Electricity Coal 37 Natural Gas 30 Nuclear 19 Conventional hydroelectric 7 Other renewables 5 Oil 1.0 Other gases <1 Check out our Size Reduction Equipment Zone for news and articles at PowderBulkSolids.com WORLD'S FASTEST BLENDING AND CLEAN UP +1-315-797-0090 USA: 1-800-944-6644 INFO@MUNSONMACHINERY.COM MUNSONMACHINERY.COM No other bulk solids mixer delivers this unique combination of benefits: n 100% Uniform blending and/or liquid additions to 1 ppm in 2-1/2 minutes n Total discharge with no segregation n Ultra-gentle tumbling action (versus blades forced through batch) n Ultra-low energy usage n Equal efficiency from 100% to 5% of capacity n Unlike other rotary mixers: – No internal shaft or seals contacting material – Every internal surface accessible – Significantly faster washdown – Seal changes 10x to 20x faster ROTARY BATCH MIXER RIBBON/PADDLE/PLOW BLENDERS HANDLE POWDERS TO PASTES Munson Ribbon, Paddle and Plow Blenders force agitators through stationary materials, imparting shear needed to reduce agglomerates and blend pastes and slurries. Choose from basic, low cost industrial units to state-of-the-art designs of 304/316 stainless and exotic alloys with heating/cooling jackets, liquid spray additions, high-speed choppers/intensifiers, and finishes to USDA Dairy and other standards. Extreme vessel rigidity allows tight agitator-to-vessel wall tolerances, resulting in a minimum "heel" of residual following discharge. Heavy- and extra- heavy-duty batch and continuous models in capacities from 1 to 1000 cu ft (.03 to 28 cu m). VEE-CONE BLENDERS SANITIZE ULTRA-FAST, THOROUGHLY Munson Vee-Cone Blenders feature smooth internal surfaces free of baffles, shafts and bearings, allowing unobstructed material flow, plus complete discharge through a gate valve for rapid cleaning or sanitizing of the easy-access interior. Uniform blends are typically achieved in 5 to 15 minutes with equal efficiency at fill volumes from 100% to 25% of capacity. Ideal for dry and granular materials, these blenders provide a tumbling action that is gentler than machines that force agitators through stationary material. Options include spray bars for liquid additions, Clean-In-Place (CIP) systems, abrasion-resistant steel construction, ASME-coded jackets and weigh batching accessories. FLUIDIZED BED MIXERS BLEND ULTRA-FAST, GENTLY Unlike Ribbon and Paddle Blenders with a single agitator shaft, Munson Fluidized Bed Mixers feature two shafts with paddles that counter-rotate at higher speeds to fluidize material, achieving homo- geneous blends in 10 seconds to 2 minutes. Low shear forces minimize friction with little or no degradation and insignificant heat generation of <0.6°F (1°C). Drop bottom gates provide rapid discharge with no segregation and minimal residual. Ideal for short cycles and gentle handling of low- to medium-density powders and fragile flakes ) 50 lbs/ft 3 () 800 kg/m 3 ) with or without liquid additions. Capacities from 265 to 28,660 lb (120 to 13,000 kg). ROTARY LUMP BREAKERS REDUCE AGGLOMERATES, FRIABLE MATERIALS Remove lumps and agglomerates from bulk foods, pharmaceuticals and chemicals, or break down glass and other friable materials. Dual rotors with three- point, single-piece breaking heads rotate with minimum clearance inside a curved, perforated bedscreen. On-size material exits through bedscreen apertures from 1/32 to 2-1/2 in. (0.8 to 63.5 mm) in diameter. The low profile design fits tight spaces between upstream and downstream process equipment, while side-removal bedscreens allow fast, in-place sanitizing. Square or rectangular inlets range from 15 to 48 in. (38 to 122 cm) in width—classifying screen apertures from 1/32 to 2-1/2 in. (0.8 to 63.5 mm) in diameter. PIN MILLS REDUCE FRIABLE SOLIDS IN CONTROLLED SIZE RANGES Also known as Centrifugal Impact Mills, these Munson machines deliver coarse to fine grinding of friable powders, flakes and granules into controlled particle sizes at high rates per hp/kw. High-speed rotation of the inner disc creates centrifugal force that accelerates bulk material entering the central inlet of the opposing stationary disc. As material travels from the center to the periphery of the discs at high speed, it passes through a path of five intermeshing rows of rotating and stationary pins, with the desired tight particle size distribution obtained by controlling the rotor speed. Fast yet gentle 4-way mixing action: fold/tumble/cut/turn BB-1251 Advertisement U.S. electrical energy generation by source Netzsch s-JET System ES426677_PB1405_033.pgs 04.22.2014 03:37 UBM black yellow magenta cyan

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