Food & Drink Process & Packaging Issue 30 2020 | Page 44

Accurate dispensing of AB Mauri bakery ingredients : Concept Controls Ltd and SEEPEX UK Ltd provide a perfect solution

A significant factor in baked goods manufacturing is the need to reduce the cost of raw material delivery into dough mixes . Modern research and process techniques have been used by AB Mauri , a major manufacturer and supplier of bakery ingredients , to produce a range of Enzymes , Bread Improvers and Enhancers in a highly concentrated form . These ingredients are highly effective , requiring very small amounts to be added to each batch .
To maximise the benefit of these concentrated products accurate dispensing of the ingredients is critical , both to ensure optimal ingredient performance , and to minimise overdosing ( which can add to material usage and cost ). Traditional weighing and Diaphragm Pump dispensing , even with the best of metering control , can lead to significant variations in the actual additive level to each batch of dough .
SOLUTION Although A . B . Mauri has considerable in house experience at developing the products , the related processes , and even the engineering of equipment , they wished to use an external engineering company with experience in Bakery and other process equipment to develop a solution that met demands for accurate dispensing .
Concept Controls Ltd ( Waltham on the Wolds ) were approached , and shown some of the original systems , a number of which had performance limitations with the latest developments in ingredients . After technical analysis of
44 FDPP - www . fdpp . co . uk peristaltic , lobe and double diaphragm pumps a higher performance pump was sought to ensure accurate repeatable dispensing of concentrated ingredients from bulk containers .
During the research process the SEEPEX Progressive Cavity ( PC ) Pump , became a clear leader . The main benefit of the PC pump is that there is a sooth pulsation free delivery of material delivering repeatable accuracy of +/ -1%. The flow rate is linear , proportional to motor speed and regulated by a simple speed controller over a very wide range . This was specifically useful as there is a limited time ( Less than 25 Secs ) for dosing of the A . B . Mauri products when operating on a standard Bread Mixer , hence a high rate of delivery is needed for rapid dispense , but a low rate of delivery for accuracy of dispense .
The pressure capability of these pumps is also very wide , and the Concept Controls Ltd system uses this to deliver a high pressure and high accuracy phase at the end of the dosing cycle . The pumps can also accurately dispense products with a wide range of viscosities .
By coupling this high performance PC pump , orifice plates , and a very high accuracy Endress and Hauser Coriolis
Flow meter , Concept Controls Ltd , in conjunction with their partner company PVSL Ltd . ( Brierley Hill ), are able to meet the challenging specification requirements for A . B . Mauri . The detailed design phase started with 3D Models of the proposed equipment generated by PVSL Ltd .
The result is an easy to apply Dosing System , that includes bulk frame storage for IBC containers ( normally in Stores area ), with buffer tanks to allow a practical regime for maintaining product stock . The Seepex PC pumps are more than capable of delivering the various products to a dosing frame mounted close to the Mixers , and hence through the associated mixer lids and into each batch of Dough .
The Dosing Frame is a small matrix of fast acting Ball Valves which allow the product to be fed either directly to the Mixer , or via the flow limiting orifice plate .
The net result is a system that can deliver as low as 50g into a batch of product , and also extend to several kilogrammes , all within the 25 second window , and every batch can be metered to the nearest gram .
The overall benefit to the end customer , is that they can rely on a very consistent product , with the advantages of the most modern process innovations , without the potential of overdosing ( i . e . wasted product ), overall enhanced quality and reduced overall scrap .
www . seepex . com