Efficient extraction of oil vapours in industry
During cold rolling of aluminium, the required fan power can be halved by a new extraction hood. © Achenbach Buschhütten GmbH & Co. KG
Consumption of less energy when cold rolling aluminium
Compared with older systems, the new extraction hood can feed the oil vapour to the recycling plant with a reduced fan capacity. Until now, the contaminated air could only be extracted non-directionally by the exhaust systems during the cold rolling of aluminium.
This meant that large air volumes had to be moved with corresponding fan power. The oil vapour can now be directionally removed by the extraction hood thanks to an improved design for injecting and removing the air.
This halves the exhaust air volume and the fan output. For cold-rolling mills in the aluminium industry, the extraction systems make up the second-largest energy load after the roll drives with about 20%. Rolling oils are kerosene-like hydrocarbons which, depending on the desired aluminium product, still contain special additives.
The oils are sprayed onto the rolls during cold rolling and partially evaporate.
This oil vapour has to be extracted from the ambient air near the rolling mill in order to ensure the air quality in the factory, prevent a build-up of oil vapour that could exceed the explosion limit and to recycle the expensive material. The project was led by Achenbach Buschhütten GmbH & Co. KG.
You found all informations about the BINE Projectinfo brochure entitled “Extracting fumes in rolling mills” here:
http://www.bine.info/en/press/press-releases/press/pressemitteilung/oeldampf-in-…
Uwe Milles/Birgit Schneider
presse(at)bine.info
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