The dilution may be executed in a batch or with a continuous system.
SLES is always added to the water, never vis vers. Independent from the high viscosity, SLES can easily be pumped and sheared.
When using a batch system for the diluting process, several problems may occur:
- Because of the big difference in viscosity of the components, it is difficult to mix them with conventional mixers or stirrers
- Large lumps remain and are very difficult to be diluted
- Long mixing times are required to achieve a homogen product
- When using non-appropriate mixing technology, white stipplings can be found in the product
- Wrong handling and operation result in incorporation of air into the product and the formation of a stable foam and a high concentration of air in the end product.
A continuous dilution using an Inline system avoids all these problems and may be realised with a ystral SLES dilution system. The system can produce SLES dilutions, emulsions and suspensions and any other products with up to three different liquid components where an intensive mixing or dispersing is required.
Main component of the system is a three stage Inline dispersing and homogenising machine.
Additional to the normal axial inlet this machine is
equipped with two or three additional radial inlets
directly into the dispersing chambers for additional dosing of components.
The watery phase concentrically comes into the
dispersing chamber, and through the radial inlets
SLES and preservative liquid are added.
When producing emulsions, the disperse phase and the emulsifier is dosed through the radial connections while the continuous phase is added concentrically through the axial inlet.
The system is operated and controlled by a switchboard with integrated SPS.