Company insight
Specialist spray drying of high-care components
The drying of a wide variety of product groups, such as flavours, vitamins, minerals and colouring plant extracts, has been one of Uelzena eG’s core competencies for more than 50 years. The contract dryer specialising in food and infant food has earned an excellent reputation in the industry, particularly as a service provider for the high-care spray drying of baby food components.
Lower Saxony – intends to further expand its leading position in this segment. A total of four spray towers of different sizes and designs are now available at the central production site in Uelzen for the drying of infant food components. Like the other spray towers, the new Tower 12 plant is also certified for the production of products in accordance with kosher and halal standards.
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New plant, high-care production The equipment of the new plant includes a strict hygiene zone concept with product and people access gates to separate the different areas, containment systems for the active ingredient dosing and filling systems, elaborate cleaning concepts with separate washing and drying rooms for cleaning plant components, as well as high- performance ventilation and filter systems for fresh and exhaust air. Besides the spray tower itself, Tower 12 also includes other central areas, such as a high-performance wet mixing area with various technologies for preparing the raw materials, as well as feeding stations for ingredients and active ingredients, fully automated filling systems, and various technical and social rooms. Everything is embedded in a completely self-contained separate spray drying plant, which is state- of-the-art in terms of hygiene, technology and efficiency.
Modern spray technology and individual processing procedures The new plant has a 15m-high spray tower with a flexible nozzle spraying system and a capacity of 650–750kg of powder per hour. For each of the very different spray products,
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ith its newly built high-care spray drying plant, Uelzena – the North German dairy from
Uelzena’s new Tower 12 plant is certified for the production of halal and kosher products.
a separate, specifically customised processing procedure is defined in advance. This is one of the greatest challenges for all contract drying projects and at the same time one of the most valuable core competences of the experienced spray drying specialist Uelzena. Thanks to the flexibly combinable technology options and individually customisable processes, the new plant offers the best conditions for realising a wide variety of spray drying projects.
Flexible technologies for optimised concentrate production The upstream process of concentrate production is essential for creating an optimal spray product, as the mixing process directly influences the quality of the subsequent spray product. The new plant is therefore extensively equipped with various technologies, e.g. for heating and emulsification, which can be flexibly combined with each other. This includes two separate, combinable mixing lines and high-performance high-shear mixers with a dispersing unit for mixing in powders and
other raw materials. The entire mixing process is largely automated. The required raw materials are taken directly from various feed stations by recipe control. Active ingredients can be added via special containment systems in a separate active ingredient room with an airlock and a particularly high standard of hygiene.
Automated packaging lines for bag-in-boxes
The packaging in 5–25kg aluminium tubular bags (bag-in-box system) takes place on currently two largely automated, separate packaging lines. The filling takes place under optimum high-care conditions within the plant’s strictest hygiene zone. The products are then transported via a conveyor bridge with an automatic transport line into the fully automated, neighbouring high-bay warehouse, which was commissioned in 2019. Palletising and storage are carried out there using state-of- the-art robot technology. ●
www.ingredients.uelzena.com Ingredients Insight /
www.ingredients-insight.com
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