Lallemand GB opts for rotary screw blowers

By Rick Pendrous

- Last updated on GMT

New screw blowers for Lallemand GB
New screw blowers for Lallemand GB

Related tags: Yeast, Atlas copco

Lallemand GB, which lays claim to being the UK’s largest commercial yeast producer, expects to reduce its energy bills by 25% after installing new rotary screw blowers to generate the process air.

The company’s production site in Felixstowe produces bakers’ and distillers’ fresh cream and compressed yeasts, as well as instant dry yeast for supply to European and worldwide markets.

Lallemand’s 22h fermentation process cycle, which has fluctuating pressure and flow requirements, is totally reliant on a continuous supply of oil-free low pressure air to deliver oxygen to the stock yeast.

It was this critical issue that prompted Lallemand to consider replacing some of its conventional lobe-type blowers, which were experiencing reliability issues, with 100% oil-free rotary screw blower technology from Atlas Copco.

An Atlas Copco ZS200+FS-1200 oil-free, positive displacement rotary screw blower was installed to test it out.

And, since then, a complete blower installation, comprising three fixed-speed ZS 200+FS-1200 machines and a further three variable speed ZS200+VSD-1200 blowers to supply air at pressures between 0.199 and 1.16 bar(g) to three of its six fermentation units have been installed.

Contact Atlas Copco​ for more information. 

Related topics: Bakery

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