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Product news
15.04.2009  |  18718x
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WIP bag filter for fluid bed and spouted bed equipment made by Glatt

No dismantling of filter bags during wash cycle

Wash in place – bag filters have also existed for several years. Glatt has frequently used them for the design of continuous fluid beds. Washing nozzles are installed in the clean and raw gas chamber at the top of the filter bags. During the wash cycle they flush the filter bags from the raw gas side and wash down all the dust on the surface.
The quality of the washing process depends on the product. Our experience shows that in many applications the filters are clean for the next product.
In order to improve the efficiency of the WIP step and to adjust the design of the specific granulator needs, we have now developed our own design of spray nozzles and filter bags. The filter has been installed in a GFG 250 and will soon be tested in full scale. Tests on our pilot unit were successful in 2008.
After washing and rinsing the filter bags are dried in the fluid or spouted bed unit, and the next production campaign can start. This filter has a walk-in clean gas chamber for servicing the filter bags and the pulse back system and is also washed in place. Entering the clean gas chamber is only necessary during maintenance. Hence nobody needs to enter the processing equipment during normal production and cleaning cycles.
The new pilot plant GF/ProCell 25, which will extend the future possibilities of the Glatt Technology Center in Weimar, provides all types of filters available and is live to see on the Glatt booth at ACHEMA 2009.

Company information

Glatt Ingenieurtechnik GmbH
Glatt Ingenieurtechnik GmbH
Glatt is specialized in intelligent particle design for the generation and functionalization of powders and granulates with defined, adjustable properties. The focus is on particles and powders for pigments, catalytic, ceramic or battery materials as well as for granules and pellets as additives for e.g. industrial salts, detergents and cleaning agents, fertilizers, pesticides, food, feed, dietary supplements and pharmaceuticals. Encapsulation of flavors, enzymes, vitamins, microorganisms, probiotics or fatty acids (PUFA) is just as possible as encapsulation of essential oils and other active, sensitive substances to be protected. With Glatt APPtec®, a unique technology for spray calcination, it is possible to generate, coat and then calcine particles in a pulsing hot gas stream in a single process step. As a pioneer in fluid bed and spouted bed technologies, Glatt masters these important processes for the formulation and optimization of particle properties through defined spray agglomeration, spray granulation, spray coating or (micro)encapsulation as well as through combinations of these processes. Also in the high temperature range. Glatt supports the product idea from the early phase of product formulation through process development to scale-up to production scale. Under the leadership of the Glatt Process & Plant Engineering teams, customized production plants for nutrition, fine chemicals, pharmaceuticals, and biotech applications are successfully planned and commissioned. Worldwide. Whether based on powder synthesis, fluid bed or spouted bed technology, Glatt also offers certified contract manufacturing for customers without their own production capacities.
Last update: 27.02.2024

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