Fachartikel

Betreiber einer Biogasanlage legen in erster Linie Wert auf hohe Gaserträge. Damit trägt eine optimierte Produktivität je Zeiteinheit (höhere Raumlast) bei. Wie wissenschaftliche Studien zeigen, bewirkt eine vorgeschaltete Substrat-Zerkleinerung genau diesen Effekt.

Bei der Herstellung von Kunststoff­vorprodukten setzt ein chinesischer Kunde von BHS fünf Druck­drehfilter vom Typ RPF X 20 ein. Mit 9 m² Filterfläche pro Maschine sind sie bezogen auf die Durchsatzleistung derzeit die weltweit größten Druckdrehfilter. Bis zu 225 m³ Suspension werden pro Filter und Stunde filtriert, dies entspricht einer Feststoffmenge von rund 100 t/h pro Filter.

The MFKG type single-shaft continuous mixers by BHS Sonthofen are especially suitable for mixing fine materials. According to the manufacturer, the machine always provides a homogeneous mixing result in compliance with the specified requirements.

This article discussed a new definition of combination filtration that will provide process engineers a framework for “idea-generation” when analyzing an operating bottleneck. The approach relies upon the slurry analysis and testing to uncover the “process symptom” and then develop a process solution called “combination mechanical slurry conditioning and filtration.” This article illustrated that the installation and combined use of filtration technologies, while higher in capital cost, will result in a more reliable operating process at the plant. In all cases, however, only through accurate lab and pilot testing, will the optimum filter selection be realized.

The objective of any mixing process is to distribute and blend materials with different characteristics and quantities as evenly as possible, resulting in a homogenous mixture. Introducing proportional movement with the optimal intensity yields effective, homogeneous mixing results. Much like stirring, simple one-directional movement with inadequate acceleration of the materials would not achieve the same mixing results.