The working principle of this plant foresees the in-line and intimate mixing of
all the components inside a forced loop where the freshly added components are
dispersed into a stream of product recirculated at a larger rate than the added
stream of components. The mixing is ensured by a multi-stage pump and a
specially designed high-shear mixer. This assures very efficient and constant
mixing, homogenisation while temperature control is obtained through a proper
Due to the short residence-time of the product inside the mixing loop, it is of
utmost importance to provide accurate and prompt measure and correction of the
pH. A double pH-meter, acting on different component flows, is fitted at the
outlet of the high-shear mixer, just before the final heat exchanger for the
control of the temperature of the product before being sent to final storage and
ultimately to the filling lines.
Production viscosity is continuously controlled by an in-line viscometer
connected with the dosing system of specific components added as rheology-modifiers.
Both the batch and continuous processing routes allow the production of a wide
variety of liquid formulations. The choice between the two depends mainly on the
required production capacity and the range of product to be manufactured.
A simplified and indicative comparison of the of the two systems is shown here
below: in general a Continuous Process is appropriate for a high production
capacity and limited number of products, while the batch process with the option
of multiple parallel lines is best suited for lower capacities (up to 5 t/hr)
and for manufacturers that plan to produce a wide range of products and need
frequent product changeover.
Liquid Detergent Production
The Ballestra LIDET plants, either based on Discontinuous or Continuous Process
route, offer the following advantages:
Wide Range of Production Capacity
Automatic Operation (Computerized Control)
Reduced Area for their Installation
No environmental Emission
High Production Flexibility
Guaranteed Production Consistency
Possibility to Neutralize Acidic (Actives) Components
When planning a liquid detergent factory, the process unit indeed represents
only a small, even if very important, part of the overall installation; Desmet
Ballestra is in the position of providing the overall know how necessary to
correctly plan the new factory which is of critical importance to optimise the
investment, thus avoiding bottlenecks (which are very frequent in these
factories) and to allow a rational flow of the raw materials, of the
intermediate / finished products and of the packaging materials.