Size Reduction
Solution to old problem
Frewitt introduces DelumpWitt, a machine which separates your product
into free-flowing powder
When powders or granular products are put in bags, undesirable product switch.
agglomerates may form, even after a limited time. Attempts Reduced powder
have been made to counteract this problem with a two stage loss, increasing your
solution, a lump breaker and then a sieve mill. There is now profitability.
another, more efficient and effective method. With only one
When trying to devise a better solution Frewitt decided to machine, it takes less
define the main problem precisely before working on a solution. time to break lumps
Once this was completed Frewitt analysed the needs of the down into a free-
market with regard to the size, shape, and capacity of the flowing powder,
equipment to be designed, as well as the general regulations increasing productivity.
and directives concerning chemical stability, ATEX and API Integration in
products. existing production line
The dictionary defines the term "agglomerate" as "a collection is simplified, further
of loose components forming a solid mass." These solid masses lowering your
colloquially referred to as ‘lumps’, can form randomly in an acquisition costs.
uncontrolled manner during storage. They are an undesirable Better suited for
factor when it comes to processing powders and granular closed processes (API
products. In order to mix products homogeneously and products) operator
compress them into tablets in the chemical and pharmaceutical exposure risk
industries, it is essential to use consistent granular products or Available in ATEX
fine-grained powders, free of agglomerates. At present, the construction
food industry, as well as the chemical and pharmaceutical
industries has the same quality requirements for raw materials. The new reality
When materials in which agglomerates have formed (e.g., In addition to the aforementioned advantages, the exceptionally
salts, carriers, pigments, etc.) are used in powder processing, it gentle 2-in-1 DelumpWitt method has made an important
is recommended to subject them to a gentle sizing process that contribution in terms of process safety and continuity.
acts on their natural lines of fracture until the agglomerates are On the DelumpWitt, virtually any agglomerate can be
returned to their original form and size. With the DelumpWitt, deagglomerated into a free-flowing powder in a single step. Up
Frewitt has developed a device in which the product is not to 40 kg bags or boxes of product are fed in and deagglomerated
subjected to outside forces that violently smash or destroy it. or sized to the target/final grain size of 2 mm. The DelumpWitt is
Instead, the grains are either carefully separated at the band highly effective as a stand-alone machine, as well as being easily
lines or else the agglomerates simply fall apart at their natural integrated into existing processes.
lines of fracture. The ingenuity in solving persistent problems such as the
aforementioned deagglomeration, as well as acquiring numerous
Two processes in one machine patents for the improvement of standard processes is indeed
There are certain disadvantages with the traditional two stage testimony that Frewitt has assumed a pioneering role in the
process requiring two separate machines :- market of customised procedures and processing.
More space is needed (2 machines). The DelumpWitt is truly unique, a state-of-the-art machine
More effort and expense is required for cleaning (2 machines). satisfying the latest standards in terms of safety, modularity,
Powder losses are greater. user friendliness and ease of maintenance
The financial investment and operating costs are greater, and Using the DelumpWitt, the most effective, as well as
ROI is slower productive device for the deagglomeration of many products,
The DelumpWitt, a novel device developed by Frewitt, separating agglomerates is no longer a problem that needs
optimises the process, thereby turning the disadvantages of the solving, but instead a new reality that needs to be experienced,
old procedure into advantages. This novel integration of two and seized for all it’s advantages.
process stages in one module results in the following By introducing the DelumpWitt, Frewitt has laid the foundation
advantages which increase your ROI and lower your cost of for effective deagglomeration, and now you too can optimise
ownership. your milling processes with Frewitts latest achievement.
More compact construction, requiring less floor space. For more information contact Frewitt on tel : +41 (0) 26 460 74
A device that is easy to clean and service resulting in faster 00 or visit: www.frewitt.com
52 Solids & Bulk Handling February 2010 www.solidsandbulk.co.uk
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