Chemical Engineering September 2018 - 58

Dual storage silos for dry bulk
materials provide flexibility
This company has introduced new
dual dry-bulk-chemical storage silos
with integral feeding and dissolving
systems (photo) that can be used to
reduce the overall height profile of a
single high-rate application or to feed
two different chemicals to one or more
application points. The dual silos are
typically mounted close enough to
each other to allow for a single ladder
with a safety cage to access one silo
roof, and a catwalk spanning the two
silos to allow for access to the second
roof. Fill lines are routed to a single
loading point, with a single truck-fill
panel operating both systems. A security
keypad, wired to automatic valves
on the fill line, ensures that dry chemicals
are being delivered to the correct
silo. Custom control packages and
ancillary equipment are also available
with the system. Controls are typically
located inside the skirted silo, along
with necessary piping and wiring, requiring
minimal installation
of some
external components. Booth 4541 -
Acrison, Inc., Moonachie, N.J.
www.acrison.com
This check valve provides rapid
dispersion of head pressures
The ProFlex 790 low-headloss inline
rubber duckbill check valve
features a unique design that provides
rapid dispersion of head pressures,
and features low cracking pressure to
prevent upstream flooding. The foldaway
design of the inner sleeve also
allows for a near full-port flow, allowing
for quick drainage. The inline design of
the check valve allows for installation
without modification to existing structures.
The design of the ProFlex 790
makes it suitable for many applications,
including combined sewer overflows,
sanitary sewer overflows and outfalls.
Booth 3118 - Proco Products, Inc.,
Stockton, Calif.
www.procoproducts.com
Acrison
(photo)
Corrosion-resistant
scales and feeders
This company has introduced a line of
volumetric screw feeders that includes
an automatic metering screw feeder
(photo) for dispensing dry powdered
or pelletized materials, such as alum,
carbon, lime, polymers, potassium,
soda ash and more, into a secondary
process. The feeder includes a
rugged steel frame with a corrosionresistance
protective finish. Feeders
are available with an optional gravimetric
feeding configuration with integrated
loss-in-weight system. Equipment
is rated as water- and dust-proof
per NEMA 4X requirements. Booth
2339 - Scaletron Industries, Ltd.,
Plumsteadville, Pa.
www.scaletronscales.com
HOW EFFICIENT IS YOUR
AERATION REALLY?
LET'S TALK
Markus Leidinger, Application Specialist, Wastewater Technology
+49 175 9335602
markus.leidinger@aerzener.de
Real efficiency means operating the consumption profiles in wastewater treatment plants with
precision. Aeration consumes up to80% of the total energy requirements. The greatest savings
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LT_Abwasser_178x86.indd 2
For details visit adlinks.chemengonline.com/70310-05
CHEMICAL ENGINEERING WWW.CHEMENGONLINE.COM
SEPTEMBER 2018
08.08.18 13:11
57
Proco Products
Scaletron

http://www.procoproducts.com http://www.acrison.com http://www.scaletronscales.com http://www.aerzen.com http://adlinks.chemengonline.com/70310-05 http://WWW.CHEMENGONLINE.COM

Chemical Engineering September 2018

Table of Contents for the Digital Edition of Chemical Engineering September 2018