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Batch Dispersing

Batch high speed dispersing

  • Batch dispersers work according to the principle of a rotor-stator-system with a relatively high shear energy.
  • By the centrifugal forces in the rotor a circulation in the vessel can be achieved.
  • By impact and shear action a strong dispersing effect is reached during the passage through the rotor- stator-area.
  • During dispersing, the product has to pass through the system again and again.
  • This results in very fine suspensions, wet ground products or emulsions.
  • By an appropriate selection of the energy and dispersing tool the system may be adapted to individual processing steps, viscosity and processing aim.
  • Controlling the speed by a frequency converter extends the field of applications for different products and volumes.
  • Similar to a fast rotating mixing system, the batch disperser is installed onto the top or in the bottom of a vessel.
  • Batch dispersers are used for small to medium sized batches.
  • The limit is reached, when the product in the vessel does not circulate anymore because of the limitation in viscosity and volume.
  • Viscosity over 3.000 mPas normally canít be treated economically anymore, in this case an inline dispersing system should be foreseen

Information and principle

  • Batch dispersing systems are offered in four different sizes with a power from 1,5 kW / 6.000 min-1 up to 45 kW / 1.500 min-1 or 1.000 min-1.
  • The machines are delivered with mechanical seal systems either in single action or double action execution. When selecting a double action mechanical seal, the system is being cooled and lubricated with a non-pressurized system in-between the product side and the atmospheric side.

  • A special design of the batch dispersing machine is the installation into the bottom of a tank.
  • This system is mainly selected in combination with an anchor stirrer and/or other centrically installed stirring elements.
  • In this case, the disperser handles all dispersing and emulsifying task, while the stirrer takes care for the required circulation in the tank

o        Emulsions
Narrow droplet spectrum and short treatment times for vegetable and animal components of type W/O and O/W.

o        Pigment suspension
Good wetting of pigments and breaking of agglomerates results in a maximum concentration of dry contents

o        Dilution of SLES
By individually and controlled dosing the different components, an absolutely lump-free mixture can be achieved

o        Homogenizing
Pastes, gels, Pectin, CMC powder and similar products are being dispersed absolutely lump-free

o        Dissolving
Colloidal and real solutions may be produced in shortest time. The energy brought into the system by the dispersing elements accelerate the dissolving process

o        Other applications are: extracting, splitting up fibers and disintegration of products

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