Chemical Engineering August 2013 - 22

Focus
into high frequency vibration,
which spreads over the screen
deck. Through this action, the
frictional resistance between the
particles and screen mesh is less,
the tendency to clog is reduced,
clog cleaning is minimized, and
throughput is increased. What's
special about the Artech process
is that the varying frequency - as
opposed to the usual resonance processes
- avoids patterns of continuous
large resonance amplitudes. As a
result, not only the mechanical loads
on the screen decks are reduced, but so
is the formation of so-called hot spots.
- Haver & Boecker, Oelde, Germany
www.haverboecker.com
Meter, screen and convey
just about any dry material
This company's line of vibrating pan
feeders and conveyers (photo) offers
a simple and efficient way to meter,
screen and convey virtually any dry
Vibra Screw
Rotex Global
bulk material. Feeders are available
with variable speed drives and can be
paired with the company's vibrated
pins to provide a compact, low-cost
hopper/feeder package. With the addition
of one or two screen decks, these
machines offer an alternative to conventional
gyratory screens. As conveyers,
they can handle up to 15,000 ft3/h
and are available in lengths up to 25
ft. All feeders, screeners and conveyors
are in carbon steel and stainless steel
with a variety of surface finishes and
liners. - Vibra Screw, Totowa, N.J.
www.vibrascrew.com
An alternative to bar rakes and
screens in headworks
The Max-Flow Annihilator Grinder
System (photo, p. 23) is a custom-engineered
headworks debris-handling
system that protects pumps, valves
and process equipment in water treatment
plants. The low-maintenance
Circle 7 on p. 52 or go to adlinks.che.com/45775-07
22 CHEMICAL ENGINEERING WWW.CHE.COM AUGUST 2013

http://www.vibrascrew.com http://www.haverboecker.com http://adlinks.che.com/45775-07 http://WWW.CHE.COM

Chemical Engineering August 2013

Table of Contents for the Digital Edition of Chemical Engineering August 2013

Contents
Chemical Engineering August 2013 - Cover1
Chemical Engineering August 2013 - Cover2
Chemical Engineering August 2013 - Contents
Chemical Engineering August 2013 - 2
Chemical Engineering August 2013 - 3
Chemical Engineering August 2013 - 4
Chemical Engineering August 2013 - 5
Chemical Engineering August 2013 - 6
Chemical Engineering August 2013 - 7
Chemical Engineering August 2013 - 8
Chemical Engineering August 2013 - 9
Chemical Engineering August 2013 - 10
Chemical Engineering August 2013 - 11
Chemical Engineering August 2013 - 12
Chemical Engineering August 2013 - 13
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Chemical Engineering August 2013 - 18
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Chemical Engineering August 2013 - 20
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Chemical Engineering August 2013 - 22
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Chemical Engineering August 2013 - 24
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Chemical Engineering August 2013 - 53
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Chemical Engineering August 2013 - 57
Chemical Engineering August 2013 - 58
Chemical Engineering August 2013 - Cover3
Chemical Engineering August 2013 - Cover4
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