Chemical Engineering June 2022 - 18

Focus
Weighing and Dosing
Coperion K-Tron
Pressure compensation ups
accuracy in LIW feeders
Loss-in-weight (LIW) feeder performance
is dependent on accurate
weighing, which can be affected by
a variety of influences. In a closed
system, pressure variations, such as
backpressure from a downstream
mixer or extruder or air pressure in
the hopper due to a clogged filter,
can affect the weight reading of the
scale and therefore feeding accuracy.
Electronic Pressure Compensation
(EPC; photo) is a simple yet
effective alternative to traditional
mechanical pressure compensation.
EPC has been shown to significantly
improve feeding accuracy of gravimetric
feeders in closed systems
and can be less expensive than traditional
solutions. In addition, the
electronic solution is more effective
and reliable, maintenance free and
easy to retrofit on existing systems.
- Coperion K-Tron (Switzerland)
LLC, Niederlenz, Switzerland
www.coperion.com
Automated Flexible Conveyor
A mobile batch-weighing
system rolls to where needed
Offered as an option,
Batch-Weigh
the
system
mobile
(photo) was
Grundfos
developed to enable powder processors
to safely and easily roll the screw
conveying system from one tank, vessel,
mixer, hopper or other location to
another, or from one processing line
to another, without investing in multiple
powder-conveying systems. The
conveyor can be used to automatically
transfer, weigh and dispense
precise amounts of powders, pellets,
flakes and other bulk materials and
then be quickly cleaned and rolled to
the next location. - Automated Flexible
Conveyor, Inc., Clifton, N.J.
www.afcspiralfeeder.com
Readco_Kurimoto
18
A dosing pump with many
digital features
The DDE pump (photo) offers a costeffective
Digital Dosing solution with
basic functions for simple applications
and covers a wide flow range
of up to 52 gal/h and up to 145 psi.
Setting dosing capacity from 0.1 to
100% is easy on the intuitive user
interface. The PR and P control variants
offer pulse control and inputs for
external stop, low level and empty
tank signals. The PR control variant
also offers relay setting of alarm,
warning, stroke signal and pump
dosing, as well as two output relays.
The larger DDE XL AR is available in
flow range over 15 gal/h and allows
analog input control in addition to the
PR features. - Grundfos Americas
Corp., Lenexa, Kan.
www.grundfos.us
Continuous processors permit
lot traceability
Continuous Processors (photo) enable
food, nutrition, chemical, pharmaceutical
and other manufacturers
to track and trace lots in a continuous-processing
environment. Devised
to support compliance with
the FDA Food Safety Modernization
Act (FSMA), the Continuous Processors
can establish a positive cutoff
for lot traceability from nearly any desired
point based on volume, weight,
time, shift, raw material lot or other
criteria. The processors mix, blend,
react, compound, crystallize, encapsulate,
and perform other processes
with multiple liquid, dry and viscous
materials in a single step. The result
at discharge meets specifications for
moisture, texture, color, uniformity
and other properties as targeted. -
Readco Kurimoto, LLC, York, Pa.
www.readco.com
Robotic sample preparation
increases productivity
Automation and robotics relieve scientists
of tedious, time-consuming
and repetitive work while enhancing
speed, improving accuracy and enabling
faster product development.
Chronect XPR robotic powder-dispensing
can ease bottlenecks in
screening preparation and open new
perspectives in high-throughput experimentation.
Automated weighing
with Chronect XPR provides ultraaccurate,
safe and reliable robotic
powder dispensing. With such an unattended,
automated screening preparation
that runs overnight, users can
simply continue with the reactions in
the morning, thus eliminating this tedious
step in their experimentation.
CHEMICAL ENGINEERING WWW.CHEMENGONLINE.COM
JUNE 2022
http://www.grundfos.us http://www.coperion.com http://www.readco.com http://www.afcspiralfeeder.com http://WWW.CHEMENGONLINE.COM
Chemical Engineering June 2022

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