Product category:
Energy management; Boiler plant
News Release from: Atlas Copco Compressors | Subject: Wolverhampton and Dudley Brewers
Edited by the Processingtalk Editorial
Team on 27 September 2006
Midlands brewery makes major energy
savings
Atlas Copco distributor AQ Central investigated the pneumatic conveying of spent grains from the brewery, usually sold for cattle feed, and were able to significantly reduce energy consumption
Wolverhampton and Dudley Breweries PLC is the UK's leading independent brewing and pub retailing business It is one of the top 300 quoted companies in the UK and operates three breweries - Park Brewery in Wolverhampton (brewing Banks, Hanson and Mansfield beers), Marston Brewery at Burton-on-Trent, and Jennings Brewery at Cockermouth in the Lake District
This article was originally published on Processingtalk on 30 Sep 2008 at 8.00am (UK)
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The Atlas Copco authorised distributor, AQ Central carried out an AirScan audit investigation of the pneumatic conveying of the spent grains, the remainder left over in the mash tuns after the wort is run off, that are usually sold for cattle feed.
The aim was to overcome blockages, improve flow rates and provide energy savings for the brewery 'Pneumaveyor' system that delivers the spent grains to a storage silo, prior to transportation.
Initially, the air supply for this process relied on the 7bar air sourced from existing plant compressors, reduced in pressure in a control unit to limit the conveyor air to below 1bar, via a receiver, otherwise the grains would not flow satisfactorily.
But this was a highly uneconomic procedure in terms of energy efficiency.
The solution in terms of sizing, both of flow and pressure, suggested increased diameter pipework and the installation of a dedicated Atlas Copco ZL1400 blower.
According to the Wolverhampton and Dudley Senior Engineer, Colin Walton: "The new system has overcome any blockage problems experienced in the past and with an oil-free operation there is no risk of product contamination.
But, better still, we are now making substantial energy savings - as much as 75%. Request a free brochure from Atlas Copco Compressors ...
That makes a major contribution to our bottom line.".
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