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PROCESS TECHNOLOGIES FOR TOMORROW SM
P O W d E R & Pa R T I C L E P R O C E S S I N G
V E N T O P L E X c L a s s i f i E r T y P E c
Hosokawa alpine is a member of the Hosokawa Micron Group, responding to global needs through emphasis on materials science and engineering. The Group is an international provider of equipment and technology for powder and particle processing, plastics processing and confectionery products. The Group maintains facilities for research, engineering, manufacturing and ser- vice in each of the world's major industrial markets.
Ventoplex 09.09/ © Hosokawa alpine 2009. Printed in Germany. 1
1 (EN)
HOsOKaWa aLPiNE aktiengesellschaft P.O. Box 10 11 51 86001 augsburg, Germany Delivery address: Peter-Doerfler-straße 13 – 25 86199 augsburg, Germany
Phone: + 49 821 5906- fax: + 49 821 5906- E-mail: [email protected]
www.alpinehosokawa.com
subject to change without notice. all information in this brochure is purely informative and non-binding. Our quotations are authoritative with regard to orders.
PROCESS TECHNOLOGIES FOR TOMORROWSM 2 /^3
OPEraTiNG PriNciPLE
The Ventoplex classifier type c is an internal recirculation classifier designed for high fines yields at low energy consumption. fineness can be simply changed between d 97 = 24 μm and 200 μm. Up to size c25V the product is fed to the centre of the classifier head via a hollow shaft, from which the material falls onto a centrifugal plate underneath the classifying wheel. The centrifugal plate distributes the feed material uniformly in the classifying chamber. coarse particles fall against the upward flow of classifying air to the bottom, collect in the coarse material cone and are discharged through the side of the machine via a gravity chute. fine particles in the feed material become entrained in the upward flow of classifying air and enter the classifying wheel along with the classifying air.
*) reference material: limestone with density 2700 kg/m³; feed material with 70% < df
DEsiGN
The method of material feed for all designs up to machine size c25V is central via a hollow shaft. from machine size c28V onwards, the material is fed either via a screw conveyor or a pneumatic trough conveyor.
LOW-MaiNTENaNcE DEsiGN
The rotor and housing parts are easy to access and can thus be cleaned and inspected quickly and with ease. The patented classifying wheel permits the exchange of individual classifying wheel vanes. if necessary, the entire rotor can also be exchanged.
aPPLicaTiON arEas
The Ventoplex is absolutely ideal
- for classifying industrial minerals such as limestone, quick lime, fertiliser lime, bentonite, dolomite, gypsum, ores, phosphorous, etc.
- for classifying abrasive products up to Mohs‘ hardness 7 – 8, for example glass powder and other abrasives, etc.
- for classifying ceramic powders that need to be produced with no iron contamination such as chamotte, quartz, feldspar, pegmatite, raw kaolin, etc.
- for classifying food and feed ingredients such as starch, soya, rock salt, feed lime, rice flour and bone flour, etc.
- for classifying base chemicals such as ammonium sulphate, silica, soda, citric acid, etc.
- for dedusting of grits
- for integration into grinding-classifying circuits
- for operation in combination with an additional ultrafine classifier.
VariaBLE WEar-PrOTEcTiON
cONcEPT
rotor blades and highly stressed housing parts are protected against wear, for example, with ceramic or special steel. Other housing parts are coated with elastomers.
The particles in the classifying wheel are classified by the two competing forces, namely centrifugal force and flow force. coarse particles are rejected by the centrifugal force, whereas for the fine particles, the drag force of the air flow predominates, allowing the particles to pass through the classifying wheel. The Ventoplex air classifier requires no additional external dust collector to separate the fines.
fEaTUrEs
- Wide fineness range
- Easy and fast setting of finess
- High fines throughput rate
- insensitive to overload
- Low specific energy consumption
- Low peripheral speed
- Low air circulation rate
In contrast to the former Ventoplex B with central drive, the new C design has a separately driven classifying wheel. In the new machine, the fan and classifying wheel are coaxially arranged and are driven by means of two separate shafts.
- Low overall height
- Low wear and tear design
- Good accessibility for inspections
- Maintenance-friendly design, use of inexpensive wear parts and thus low maintenance costs
- Various options for wear protection
Ventoplex Type C C9V C12V C15V C18V C21V C25V C28V C32V C36V C40V scale-up factor f = approx. 1 1.8 2.8 4 5.6 8 10 12.5 16 20 Drive power of internal fan kW 3.0 5.5 7.5 11 15 22 30 37 55-75 75 Material feed from above centrally via hollow shaft from the side via conveyor device Drive power of classifier kW 1.5 2.2 3.0 4.0 5.5 7.5 11 15 22 30 Max. classifier speed rpm 1120 800 670 560 475 400 355 315 280 250 Max. feed rate t/h 3 5 8 12 17 24 30 38 48 60 fineness *) d 97 = ca. μm 24 - 200 24 - 200 32 - 200 32 - 200 32 - 200 40 - 200 40 - 200 45 - 250 50 - 250 63 - 250 fines yield *) df 24 μm in t/h 0.3 0.5 --- --- --- --- --- --- --- --- 32 μm in t/h 0.4 0.7 1.1 1.6 2.2 --- --- --- --- --- 45 μm in t/h 0.5 0.9 1.5 2.2 3.0 4.3 5.4 6.8 (8.5) --- 63 μm in t/h 0.7 1.2 1.9 2.8 3.9 5.6 7.0 8.8 11.2 14. 90 μm in t/h 0.9 1.6 2.5 3.6 5.0 7.2 9.0 11.3 14.4 18. 200 μm in t/h 1.6 2.9 4.5 6.4 9.0 12.8 16.0 20.0 25.6 32.
VENTOPLEX®CLaSSIFIER
TyPE C
