BENELUX

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 can’t 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 a 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-pressurised 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
• Emulsions
  Narrow droplet spectrum and short treatment times for vegetable and animal components of type W/O and O/W.
• Pigment suspension
  Good wetting of pigments and breaking of agglomerates results in a maximum concentration of dry contents
• Dilution of SLES
  By individually and controlled dosing the different components, an absolutely lump-free mixture can be achieved
• Homogenising
  Pastes, gels, Pectin, CMC powder and similar products are being dispersed absolutely lump-free
• 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
• Other applications are: extracting, splitting up fibres and disintegration of products

 Batch dispersers are offered in four different sizes with a range from 3 kW for 6.000 min-1 up to 45 kW for 3.000 min^-1, 1.500 min^-1 or 1.000 min^-1.

Depending on the application, single or double action mechanical seals are installed.

A special version of the batch dispersing machine is the bottom entry type. This type of machine is often used in processing systems in combination with other mixing equipment. In this case, the dispersing machine handles all the dispersing end emulsifying tasks, while the mixer handles the required circulation of the product in the vessel.