Magnets keep sugar iron-free

Published online: Jul 18, 2017 News
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Goudsmit Magnetics of Waalre has recently seen increased demand for magnets for the sugar industry.

This has to do with the liberalisation of the sugar market in Europe. The lifting of restrictions and the stricter requirements of food manufacturers that incorporate sugar into their products have led to an increased demand for magnets that filter both fine (from 10 micron) and coarse iron particles from product flows.

A recently developed system is the continuous cleaning Cleanflow magnet, which can filter both iron and stainless steel from sugar and achieves capacities of up to 200 tonnes/hour. The system is suitable for installation in ATEX zone 20/22 and can be cleaned without stopping the product flow. It can be installed directly below the sieve or even just before the loading/packing point. The Cleanflow magnet is easy to integrate into existing production processes.

In addition to preventing damage claims, magnets protect machines against seizure due to iron contamination and resulting expensive production standstills.

Production phases

Besides Cleanflow magnets, which remove the very smallest particles (down to 10 microns) from the final phase of the production process, there are other magnets with sugar production applications. Coarse bits of iron can be picked up when sugarbeet is harvested in the field. There is often ammunition in among the crop. To capture this iron we hang plate magnets above the infeed line outside the factory. Then the beets are cleaned and cut into pieces. When they fall through a chute, chute magnets separate the remaining –visible– pieces of iron.

During the next step in the process the beets are boiled, which produces a thin syrup and a thick syrup. The thick syrup is then boiled further and centrifuged to produce crystallized sugar that then enters the drying phase. Cleanflow magnets are used here, which filter out the very smallest iron contaminants that are not always visible to the naked eye. This way the magnet ensures a good quality finished or semi-finished product and zero damage claims.

Source: www.goudsmitmagnets.com