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Tenova TAKRAF is a key supplier of equipment and systems for open pit mining and bulk handling, having providedhundreds of complete systems, as well as individual machines to clients all over the world. Comminution systems formilling and crushing requirements in mining and mineral processing are based on a track record dating back to the1920s. Air pollution control, specialised handling equipment, and technology for the cement and fly ash industriesand pneumatic conveying, ensure selection of optimal processing options. A comprehensive after sales service isprovided. Bateman Engineered Technologies (previously part of the Bateman Engineering Group) is now trading asTenova TAKRAF.
Tenova TAKRAF’s in-house scrubber range for air pollution control is comprehensive, enabling selection of the mostcost-effective solution to any dust-control or air-cleaning problem, large or small. Systems are designed, manufacturedand supplied as turnkey installation, with full after-sales service.
Tenova Mining & Minerals is a total integrated solutions provider to the global mining, bulk materials handling andminerals beneficiation and processing sectors, offering innovative technological solutions and full process andcommodity knowledge across the mining industry value chain.
MINING & MINERALS
www.tenova.com
TECHINT GROUP
Edition 2 August 2013
Tenova TAKRAF
Tenova Mining & Minerals (Pty) Ltd58 Emerald Parkway RoadGreenstone Hill, Ext 21Johannesburg 1609PO Box 75996Gardenview 2047South Africaphone +27 11 201 [email protected]
TAKRAF GmbHTorgauer Straße 33604347 LeipzigGermanyphone +49 341 2423 [email protected]
Bahnhofstraße 2601979 LauchhammerGermanyphone +49 3574 854 [email protected]
Tenova S.p.AVia Albareto, 3116153 GenoaItalyphone +39 010 [email protected]
Tenova MINING & MINERALS
Tenova Mining & Minerals (Pty) Ltd58 Emerald Parkway RoadGreenstone Hill, Ext 21 1609PO Box 7737Johannesburg 2000South Africaphone +27 11 899 [email protected]
TENOVA is a worldwide supplier of advanced technologies, products and engineering services forthe iron & steel and mining industries.
Dynamic ScrubberOptimal solutions for Air Environmental Control
TENOVA TAKRAF DYNAMIC SCRUBBER
Tenova TAKRAF offers four in-house scrubber designs,with the most widely used being the Dynamic Scrubber.The Dynamic Scrubber offers > 99.5 % dust collectionefficiency in the 1 – 2 µ range @ 1.5 kPa pressure loss.It is ideally suited to general dust collection on mediumto high dust loads.
ADVANTAGES
n Proven design.n Very low cost for high efficiency.n High energy efficiency.n Integral self-cleaning fan.n Low maintenance.n Low water consumption.
SPECIFICATIONS
SCRUBBER SCRUBBER O/A SLURRY SCRUBBER INLET INLET STEELWORK INLET STEELWORK STEELWORKSIZE DIAMETER HEIGHT OUTLET HEIGHT HEIGHT WIDTH HEIGHT LENGTH WIDTH
‘A’ ‘B’ ‘C’ ‘D’ ‘E’ ‘F’ ‘G’ ‘H’ ‘I’ ‘J’
Size 36 920 7,719 2,000 5,719 430 230 3,980 2,685 2,880 2,835
Size 42 1,070 8,215 2,000 6,215 460 280 4,160 2,775 3,005 2,985
Size 48 1,220 8,864 2,000 6,864 530 300 4,490 2,890 3,210 3,365
Size 54 1,370 9,338 2,000 7,338 580 360 4,640 2,980 3,360 3,520
Size 60 1,530 9,939 2,000 7,939 660 380 4,970 3,090 3,770 3,975
Size 66 1,680 10,420 2,000 8,420 740 430 5,175 3,205 3,895 4,050
Size 72 1,830 10,875 2,000 8,875 810 460 5,480 3,320 4,100 4,585
Size 78 1,980 11,310 2,000 9,310 860 510 5,660 3,420 4,250 4,740
Size 84 2,130 11,904 2,000 9,904 940 530 5,860 3,510 4,505 5,195
Size 90 2,290 12,368 2,000 10,368 990 590 6,140 3,615 4,635 5,350
Size 96 2,440 12,671 2,000 10,671 1,070 610 6,420 3,725 4,865 5,500
Size 102 2,590 13,440 2,000 11,440 1,120 660 6,650 3,830 5,240 6,260
Size 108 2,740 13,766 2,000 11,766 1,190 690 6,955 3,945 5,360 6,415
Size 114 2,900 14,482 2,000 12,482 1,270 710 7,360 4,185 5,500 6,565
Size 120 3,050 14,928 2,000 12,928 1,320 760 7,665 4,285 5,675 6,720
Size 126 3,200 15,500 2,000 13,500 1,400 810 8,000 4,400 6,105 7,175
Size 132 3,350 15,904 2,000 13,904 1,470 840 8,300 4,590 6,285 7,330
Size 138 3,510 16,349 2,000 14,349 1,530 890 8,450 4,640 6,415 7,480
Size 144 3,660 16,728 2,000 14,728 1,600 920 8,600 4,755 6,590 7,785
HOW THE DYNAMIC SCRUBBER WORKS
Dust-laden air enters the Dynamic Scrubber tangentially,forcing heavier dust particles into the swirling water andout via the slurry outlet. Lighter dust particles move through the impingementvane, with the air stream providing an increased wettedsurface area for particle impingement. Intermediate sizeparticles are collected here, then flushed through thevanes and out via the slurry outlet.The air is essentially free of dust particles at this stageand is drawn into the interconnecting fan duct withsufficient liquid to flush clean these internal surfaces.Scrubbing liquid is introduced into the eye of the radial-bladed fan, causing complete flush cleaning of the internalsurfaces of the fan.
Fine dust particles are then captured by turbulent mixingof the liquid and air, the impact of rotating wetted bladesand dynamic forces due to high tip speeds, causingimpingement of dust particles on the moving layer ofwater.At the water elimination stage, the collected clean air anddust / liquid mixture discharges tangentially into thedroplet separator, where cyclonic action causes separa-tion of the slurry from the clean air. Liquid droplets arecentrifuged against the scrubber walls to dischargethrough an internal cone to the slurry outlet. The cleanair, free of liquid droplets, is discharged vertically throughthe scrubber stack outlet.
