agitation system, the possibility of materials –Liquid
or Solid passing through it, without subjected to intense
hydraulic and mechanical shear actions is zero. Here suction
pipe (inlet pipe) is centrally mounted & outlet is
radially mounted , therefore it is physically impossible
for any material to pass from inlet to outlet without
exposed to agitation.
The stator which surrounds rotor is available with various
type of opening i.e. round, square, rectangular &
with perforation also so that all the critical demand
of Mixing, Emulsifying, Disintegration & Dispersion
of solids, suspension can be met out by same equipment.
The machine is versatile & has completely revolutionized
the traditional mixing techniques. Here close tolerance
of rotor with the stator produces high hydraulic shearing
& mechanical action that ensures that material entrapped
between rotor & stator is subjected to tremendous
shearing actions each minute.
Fluid Mixing Mechanisms:
In terms of mechanical mixing mechanisms, a number
of actions are employed by different types of mixers to
create different effects for particular process results.
For distributive action, swirl created by rotating parts
causes laminar thinning of the material interfaces, thereby
increasing volumetric combination of the materials. A
repeated cutting and folding action of the mixture also
increases the distribution of different material components.
The effectiveness and efficiency of a mixer in distributive
mixing is therefore a function of how the machine interacts
with the fluid in a geometric sense.
Conversely, the effectiveness and efficiency of a mixer
in dispersive mixing is a function of how the machine
interacts with the fluid in a stressing sense. For most
materials, the higher the stress, the smaller the resulting
particles or droplets in the mixture. However, another
very important consideration is the uniformity of the
stress field. Without a reasonable uniformity, it is impossible
to guarantee that the same stress is applied to all parts
of the fluid. This would result in a wide range of final
droplet or particle sizes rather than a narrow range obtained
with uniform stressing. One or more of the three primary
stressing mechanisms are used in most fluid mixers.These
Usually called "high-shear mixers", are the
most common form of Dispersing/Homogenising/ Emulsifying
mixer. By placing a form of closely-fitting shroud around
a high speed impeller, it is possible to create a shearing
action between the blades and stator shroud. As material
is centrifugally pumped through the mixing head, some
of it will see this high shear zone and experience shear
stressing that results in dispersive mixing. Where small
or uniform dispersions are required, material must be
cycled through the head many times to ensure statistically
that all of the material has passed through the high shear
zone at leastonce.
PUMPING ACTION :
Because of indigenous design & rotor operating
at very high speed in close clearance with stator draws
the material in & imparts mechanical & shearing
actions. Inline Homogenizer facilitates high volume, non
positive action which is sufficient to transfer the material
without any supplementary pumps but in some cases because
of high viscosity, vertical lift or length of pipe line
, the flow rate may come down below the anticipated value,
In that case it is supplemented by an auxiliary pump installed
in the system which pumps the liquid without reducing
the homogenising/emulsifying efficiency of the system.
END CONNECTION : The inlet
& outlet are normally fitted with . DIN, Tri Clover/
Sanitary Screw fittings but other Modes of fittings can
be provided on request.
Single mechanical seal with Carbon, silicon carbonized
phase combination is provided. Special single or double
sealing is also available for conditions & process
which demand it eg. Latex , Abrasive solids.
APPLICATION OF INLINE HOMOGENISER/EMULSIFIER Inline emulsifier is successfully used for the
following processes :
RECIRCULATORY PROCESSING : There are certain processes which demand
higher degree of homogenization, dispersion, comminution
& but to attain that level, single passage of material
through Inline is not sufficient to reach that degree
, in that situation , it is more useful to pass the product
several times through the same machine by means of recirculation.
The above process is normally adopted in producing emulsion
of Oil & Water. Oil , which is lighter than water
is charged in the holding vessel & water is added
into the pipe line between vessel outlet valve & Inlet
of Inline Emulsifier. This mix is immediately sucked into
the head of emulsifier & there mixing/ emulsification/
homogenization takes place . This mix is then sent into
the vessel. This process is repeated till achievement
of perfect emulsion. Where viscosity is very high or vessel
size is large, it is recommended to go for Batch type
mixer along with Inline Mixer.
PROCESS : In this process, all ingredient are mixed
in a holding vessel with some agitator & a single
passage through the inline smoothens the lumps and homogenize
a suspension or emulsion.
Inline Mixer is currently in use in the industry listed
below & this gives a new horizon for this exceptional
machine to validate its results.