Nozzle Separators for Baker’s Yeast and Yeast Extract

More than 110 years of experience in yeast processing

GEA yeast separators – a century of constant innovation

In 1904, GEA developed the first yeast separator. Just one year later, in 1905, 20 yeast centrifuges, with a capacity of 125 l / h per machine, were delivered to the Bramsch yeast factory in Teplitz. When sliding bearings were replaced by ball bearings in 1921, the capacity of the machines increased rapidly. The first centripetal pump machine, namely the HD 50, enabled the clarified liquid to be discharged under pressure. This solution very much simplified the overall separation process. In 1983, GEA built the largest yeast separator in the world, namely the HDA 300, with a capacity of up to 260 m3 / h yeast wort.

Stable process conditions with viscon

In subsequent years greater emphasis has been placed on closed systems which were able to respond in a flexible manner to product fluctuations and which ensured a constantly high concentration of end product. Accordingly, 1990 saw the arrival of the viscon® system – separators featuring an automatic viscosity control facility (viscosity-controlled nozzles) for the yeast cream, which is discharged under pressure from the separator in a closed system. Nowadays, the research engineers in the field of separator development are working on the requirements of organisms such as yeast in the future. viscon® separators are designed in the form of a modular system. This means that machines can also be built in the form of sterilizable separators and can be used in the sterile environments of biotechnology for yeast applications.

HFx separator series with automatic flow control

The development of the viscosity controlled nozzles (viscon®) signalled the end of annoying adjustments to the separators’ parameters in response to changes in the feed conditions, with the result that the solids concentration in the discharge is now constant. The HF series of nozzle separators represents state-of-the-art technology in the production of baker’s yeast and yeast extract. Consisting of a swirl chamber and the downstream outlet nozzle, these special nozzles automatically modify the flow. If, for example, the concentration in the outlet is too low, the volumetric flow reduces and the concentration increases. If, on the other hand, the concentration is too high, the nozzle increases the volumetric flow, which correspondingly reduces the concentration. 

Features & Benefits

  • Extensive selection of nozzle separators in varying sizes to cover any capacity required
  • Use of special viscon® nozzles ensures constant discharge concentration, even when feed conditions change
  • Avoidance of shearing forces thanks to hydrohermetic feed and the location of the discharge nozzles on the bowl top
  • Enclosed product handling as a result of the concentrate and the clarified phase being  discharged by centripetal pump
  • All separators are completely CIP capable
  • Intelligent discharge systems ensure minimum product losses, high flexibility and precision in solids discharge

All separators are equipped as standard with low-maintenance flat belt drives. The larger separators can also be equipped with GEA’s direct drive for

  • Higher capacity with same energy input
  • Smaller footprint
  • No belt tensioning thus less maintenance required 

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持続可能な冷凍で将来を見据えたコールドチェーンを

質の高いコールドチェーン管理の重要性を過小評価することはできません。傷みやすい生鮮食品が消費地で安全かつ高品質であることを保証することは、コールドチェーン施設を運営する人々にとって非常に大きな責任です。GEAは、低温貯蔵や配送センター向けに安全で持続可能な冷凍技術を提供する最前線に立ち、お客様の施設のエネルギー消費量と二酸化炭素排出量の削減を支援しています。

Josep Masramón and his daughter stand in front of their GEA batch milking installation.

バッチ搾乳が現代の酪農を支える理由

自動搾乳における最新の進化は、バッチ搾乳を導入することです。バッチ搾乳とは、通常1日に2~3回、決まった搾乳時間に乳牛をグループ分けして搾乳する酪農方法です。自動化技術は、酪農場における乳牛の福祉、柔軟性、そして持続可能性のバランスを取りつつ、それと同時にコスト構造を継続的に最適化し、より効率的になるという、酪農家の最近の課題を克服するのに役立っています。

何もないところから

多数の国では、安全な水と衛生設備を確保することがいまだに課題となっています。汚れの混じった飲用水により病気になったり、毎日水を汲みに行くという役割を果たすため、学校に通うことができない子供たちが多数存在します。ドイツのハンブルクを拠点とする非営利団体Viva con Aguaと協力することで、GEAは一部のタンザニアの学校にきれいな水を供給する手助けをしています。

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