|
 The
concept behind a static mixer is simple: fluid flowing
through a pipe is channeled through a geometric
arrangement of mixing elements. The element geometry
within the housing causes the flow to divide, mix,
divide again and mix again until complete. The flow
then continues in a pipe as if it had gone through
conventional batch mixing in tanks, with the distinct
difference that the degree of homogeneity can be
precisely controlled within the sanitary static
blender.
  <Click
to open PDF>
|
|
- Highly predictable
mixing and dispersion
- 100% product
uniformity and distribution from controlled shear
and turbulence
- Meets 3A Standard
#35-00
- Meets USDA-Dairy
Requirements
- Low capital cost
& maintenance
- Improves safety
and sanitation of mixing operation
|
- 50-90% less power
consumption than mechanical mixers
- Total mechanical
reliability - no moving parts, no electrical requirements,
easy installation
- Superior corrosion
or abrasion resistance
- Excellent process
versatility - capable of handling viscosities
over 1 million cps
|
|
How
It Works
The Admixer excels at processing
any combination of miscible fluids. Where laminar flow exists,
complete homogeneity is achieved through geometrically precise
flow division, independent of viscosity, density or velocity.
In turbulent flow, the Admixer utilizes radial momentum and
inertia reversal to eliminate stratification of flow, temperature
gradients and processed material variations.
For more difficult
mixing requirements involving immiscible fluids, gas and fluids,
or other 2 and 3 phase operations, the Admixer approaches ideal
plug flow combined with very uniform shear. This unique combination
allows very predictable droplet size formation and distribution,
creating fine dispersions and stable emulsions. Where heating
or cooling of fluids is critical, the Admixer will increase
the heat transfer rate while eliminating temperature and velocity
irregularities.
The Admixer geometry has been
computer designed for optimal performance and reproducible manufacturing
techniques. The unit will completely blend, disperse, react
or heat two or more fluids in a short length of pipe. To achieve
these results, the mixer relies on the principles of radial
momentum transfer, flow division and inertia reversal. These
transport mechanisms combine to eliminate concentration, velocity
and thermal gradients. While many geometric shapes have been
used to create homogeneous flow, the degree of energy and mixing
efficiency has been inadequately addressed. By using an elliptical
or helical shape, smooth transitions are possible and no energy
is wasted in backmixing. Triangular risers are used to connect
the angled elliptical shapes to prevent eddy dissipation at
the element edges.
When in laminar flow, two or
more fluids will remain adjacent to each other indefinitely
unless disrupted. The mixing elements divide the fluids and
reorient by 180º, by reversing from left hand to right
hand orientation, the rapid reversal at the interface enhances
the mixing effect.
Options
Mounting:
- Sanitary clamps
- Threaded ends
- Flanged ends
- Tri-clamp®
connections
Materials:
- 304 or 316 Stainless with
16 micro-inch finish, near mirror polish
- Carbon Steel
- Teflon (PTFE) machined from
solid bar
- Tefzel, Kynar, and other materials
available
- Any exotic alloy including
Titanium, Hastelloy B & C, Monel, Carpenter-20, and others
Other
Options:
- Retainer ring welded onto
element for easy removability
- Welds can be completely ground,
blended or polished
Specifications
Models and Specifications
|
Sanitary “SAN” Series
Model
|
Nominal Diameter (inches)
|
I.D.
(inches)
|
Length
(inches)
|
Approx. Weight (lbs)
|
|
SAN1/2-R6-S
|
1/2
|
0.4
|
6-5/16
|
1/2
|
|
SAN3/4-R6-S
|
3/4
|
0.65
|
7-1/2
|
1/2
|
|
SAN1-R6-S
|
1
|
0.87
|
8-3/4
|
1
|
|
SAN1.5-R6-S
|
1-1/2
|
1.37
|
13
|
2
|
|
SAN2-R6-S
|
2
|
1.87
|
17-1/4
|
5
|
|
SAN2.5-R6-S
|
2-1/2
|
2.37
|
21-3/4
|
8
|
|
SAN3-R6-S
|
3
|
2.87
|
26
|
12
|
|
SAN4-R6-S
|
4
|
3.83
|
34-1/2
|
20
|
For
more information on understanding and applying Admixer™
technology, the following Technical Reports are available
on link for PDF version:
Tech Notes:
#101
- Admixer™ Theory of Operation
#102
- Sizing the Admixer™
#105
- Gas Blending
Processing
Reports:
#201
- Food, Beverage & Dairy Processing
ADMIXER™ Characteristics
|
|
Admixer™
|
|
Mixing Action
|
Plug Flow
|
|
Viscosity Range
|
1 to 1,000,000
cps
|
|
Viscosity Ratio
|
10,000:1
|
|
Volumetric Ratio
|
10,000:1
|
|
Density Ratio
|
100:1
|
|
Shear Rate
|
Low, but
uniform (up to 10³ sec-¹)
|
|
Velocity Dependency
|
Laminar
Flow - None
Turbulent - 1 ft/sec minimum
|
|
Dispersion Capability
|
Good to
Very Good
|
|
Pressure Drop
|
Low (1 to
5 ft)
|
|
Maintenance
|
Low
|
|
Injection Requirements
|
Very Important
Especially at High Viscosity or Volumetric Ratios
|
|
Energy Cost
|
Low (25%
of Dynamic Mixers)
|
|
Capital Cost
|
Low
|
