The document discusses double cone mixers, which are used to homogenously mix different materials. They work by tumbling materials inside a revolving vessel. Key points:
- Double cone mixers are used in industries like food, pharmaceuticals, chemicals, and minerals to mix ingredients like APIs, starches, flavors, and spices.
- They consist of two conical sections welded to a central cylinder and rotate about an axis perpendicular to the cone axes. Mixing occurs as materials move through the different sections.
- They are available in batch sizes from 50 liters to 3500 liters and include features like adjustable paddles, discharge valves, safety guards, and variable speed control.
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3. Double Cone Mixer is used in a variety of industrial
segments.
It's also known as Tumbler mixer or segregating Mixer.
Basically, they are normally non- impeller type unit &
doesn't employ blades, screw which we can see in non
segregating mixer.
Double cone mixer is principally used for meticulously
combining "different material" to manufacture a very fine
homogeneous product.
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4. Mixing is most exigent operations in a chemical process
plant. Adding to it, Industries such as pharmaceutical,
injectable, mineral & foods also depend heavily on mixing
technology before further processing or operation like
filling, capping etc.
For example, in Chemical process plant, it is used to mix
specialty chemical, detergent ingredients together.
In Pharmaceutical and injectable plant, it is used to mix API
(Active pharma ingredient) with natural essential like
starch, cellulose, lactose & fructose.
In Food, it is used to mix various spices and flavor
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5. In Pharmaceutical and injectable plant, it is used to mix API
(Active pharma ingredient) with natural essential like
starch, cellulose, lactose & fructose.
In Food, it is used to mix various spices and flavor
together.
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6. In Short , Double Cone Mixer is quite important equipment
and extensively used in following industries.
Food
Pharma
Chemical
Minerals
Guar Gum
Starch / Cellulose etc.
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7. The basic design of double cone mixer includes the main body of mixers
consists of two conical shaped sections, commonly with 45 degree slope,
which are finely welded at their bases to a big central cylindrical section. The
axis of rotation is at right angles to cone axis & also passes through
cylindrical section. The driving motor is placed in one of the two sideways
supports holding main mixer body.
This mixer has two types of finishes i.e. inlet and outlet. Loading orifice
serves as an inlet through which solids are loaded into the mixer. As an
outlet there is a hermetic closing butterfly valve through which discharge as
well as cleaning done. Mixing takes place in axial direction & as a result of
the material moving through the different sections.
Further mixing is resulting into very fine homogenous mixture and obviously
the speed of rotation required to take into consideration. Speed of axis of
rotation is achieved due to the use of worm type of gearbox and speed
variation is achieved with the use of sensor less variable frequency control
drive. Finally, harmonized solid mixture is discharged through a hermetically
closing butterfly valve which can be operated manually or automatically.
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8. Double cone mixers are widely
used for batch production in
industries.
This type of "Tumbler mixer"
operates by tumbling the mass of
solids inside the revolving vessel.
In Today's era, double cone
mixers are available in various
configurations affecting material
movement, masses to be mixed,
mixing proficiency & ease of
cleaning between batches.
For the batch production purpose,
double cone mixers are available
from 50 liter capacity to 3500
liter capacity.
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Fig: Typical Front view
of Double Cone Mixer
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Double cone mixer are generally equipped with following features
Unique conical shape at both ends smoothly enables homogeneous
mixing & effortless discharge.
As per customer demand, all contact parts can be fabricated using
AISI 304 or AISI 316 material.
Virtually maintenance free machine.
This mixer has a single or double shaft with adjustable mixing paddles.
Manually operated butter fly valve at one end of the cone provided for
material discharge.
All moving parts covered with SS304 covers.
Safety guards made from SS304 pipes provided in front of the m/c
with limit switch.
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Control Panel fabricated from SS304 material with facility of three
phase indication, digital timer & Current measurement Meter & with
fully integrated motors and controls
As per customer requirement, machine can be made available either
with left side drive or with right side drive.
Speed reduction is easily achievable due to use of worm gear and
Variable frequency drive.
Inside & outside surface of the cone is completely mirror finished.
Machine Structure is built using AISI 304 material.
All safety guards & covers made out of SS304 in GMP Model.
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There are various factors which are required to take into consideration
while designing the mixer So it is quite pertinent to have that information.
First and foremost Properties of materials being mixed are one of the most
important factors affecting mixing operation.Each ingredient in a mixture
has distinctive physical & chemical characteristics that contribute to the
properties of the resultant mixture.
Important properties are Bulk Density, Cohesiveness, Adhesiveness,
Surface Characteristics, Moisture Content of Solids, density-Viscosity-
Surface Tension of Liquids Added, Flow ability, Angle of Response etc.