Chemical Engineering April 2022 - 57

Solids
Processing
special advertising section
Inside:
Paul O. Abbe ...................................................57
Buss-SMS .......................................................59
Dynamic Air .....................................................61
Flexicon ...........................................................61
Hapman ..........................................................60
IPCO ................................................................59
Jenike & Johanson ...........................................58
Lechler USA .....................................................60
Material Transfer .............................................58
PINK ................................................................59
Ross Mixers .....................................................57
Rota-Cone®
T
Blender
he Paul O. Abbe Rota-Cone® blender is the ideal choice for thorough
and gentle blending of powders or crystalline products.
Because this tumble blender has no shaft seals or agitator, cleaning
is simplified and cross-contamination minimized. All internal surfaces
the Rota-Cone® can be inspected from the single
loading hatch.
Liquids can be
added through
the optional
spray line and
a pin agitator
can be added
to facilitate liquid
dispersion,
granulation or
de-agglomeration.
Loading
can accomplish
with our automated
drum
loading and discharging
system.
Controls
including variable
frequency
drive and PLC
can be supplied in NEMA-4X or NEMA-7&9 explosion-proof design.
Available sizes range from 0.1 to 500 cubic feet working capacity.
www.pauloabbe.com
Inline high shear mixers that induct powders,
homogenize and pump
Ross SLIM Technology employs high shear for rapid and complete mixing of powders into
liquids, avoiding agglomerates and dust formation
he Ross Solids/Liquid Injection Manifold (SLIM) is a technology
for dispersing challenging powders such as thickeners, pigments
and other additives using a specially modified high shear
rotor/stator generator.
In an inline configuration, the SLIM mixer pumps liquid from the
recirculation tank while simultaneously drawing powders from a
hopper. As the liquid stream enters the rotor/stator assembly, it immediately
encounters the powder injection at the high shear zone.
The mixture is then expelled through the stator at high velocity
and recirculated back into the tank. In a few short turnovers, solids
are completely dissolved or reduced to the desired particle size
(deagglomerated).
This method for high-speed powder injection is ideal for dispersing
small concentrations of hard-to-wet solids like CMC or xanthan
gum (>5%). It is equally effective for solid loadings as high as
70%, as in the case of some titanium dioxide or magnesium hydroxide
slurries. By introducing solids sub-surface where they are
instantly subjected to vigorous agitation, issues like floating powders,
excessive dusting, and formation of stubborn agglomerates
" fisheyes " are eliminated. Because the SLIM generates its own vacuum
for powder induction and does not rely on external eductors or
pumps, it is free of clogging and simple to operate.
T
Options include automated skid packages where the SLIM mixer
is piped to a jacketed tank and supplied with flow meters, load
cells, solenoid valves, level sensors and thermocouples all integrated
into a PLC recipe control panel. The SLIM technology is available
in batch (in-tank) design as well.
Pictured are two 25 HP ROSS SLIM Model HSM-405SC-25 with a
NEMA 4 Class II, Div. 2, Group
G purged control system programmed
to operate both the
mixer and the pneumaticallyactuated
1.5 " powder feed
valve, managing the flow of
the dry phase (powder feed
hopper not shown).
Established in 1842, Ross
is one of the world's oldest
and largest manufacturers of
process equipment, specializing
in mixing, blending, drying,
and dispersion.
www.mixers.com
CHEMICAL ENGINEERING WWW.CHEMENGONLINE.COM APRIL 2022
57
http://www.pauloabbe.com http://www.mixers.com http://WWW.CHEMENGONLINE.COM
Chemical Engineering April 2022

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