Zuckerproduktion
Mit der Erfahrung und dem Fachwissen im Bereich Zucker kennt Alfa Laval die Herausforderungen der Branche - vom ersten Saft bis zur fertigen Melasse. Alfa Laval ist sich der Tatsache bewusst, dass der Energieverbrauch sowohl aus finanziellen als auch aus ökologischen Gründen minimiert werden muss, und unterstreicht dies mit seinem Angebot. Mit einem umfangreichen Portfolio an Wärmeübertragern kann die Technologie von Alfa Laval während des gesamten Zuckerherstellungsprozesses eingesetzt werden.
Die Bedürfnisse der Zuckerindustrie mit modernsten Lösungen erfüllen
- Alfa Laval Wärmeübertrager sind für die hochwertige Rüben- oder Zuckerrohrverarbeitung und Zuckerraffination maßgeschneidert.
- Der geringe Platzbedarf der Alfa Laval Plattenwärmeübertrager ermöglicht eine einfache Nachrüstung in einer bestehenden Anlage.
- Zuckerströme, die Feststoffe enthalten - wie Mischsaft, Rohsaft und gekalkter Saft - können in Alfa Laval WideGap-Wärmeübertragern erhitzt werden.
- Weltweit führende Verdampfer, Plattenkondensatoren, Dekanterzentrifugen und Drehkolbenpumpen vervollständigen das Portfolio von Alfa Laval
- Ein globales Servicenetz mit Zuckerspezialisten, die die Kunden mit Ersatzteilen und Fachwissen unterstützen, wo und wann immer sie gebraucht werden
Sugar Beet Processing and Sugar Cane Processing
Pre-treatment
Whether sugar is produced from beet or cane, the pre-treatment part of the mill involves heating large-volume sugar streams with fibres.
Alfa Laval’s WideGap plate heat exchangers are top of the tree when it comes to fluids containing fibres, as the wider spacing (compared to standard plate heat exchangers) combines a high heat transfer efficiency with longer running time between cleanings.
A WideGap heat exchanger can, thanks to its wide plate spacing and large connection ports, make use of low-grade vapour, also from the final evaporator or vacuum pans that traditionally would be considered as waste heat.
This saves the more valuable heat sources such as liquid or high-pressure vapour for other duties, such producing electricity that can be fed to the national grid, or hot water for use in the local district heating network.
Beet processing
Sugar production and refining involve the continual transfer of heat to and from the different juice flows, right from the first juice to the final molasses.
Alfa Laval’s high efficiency heat exchangers make it possible to employ a close temperature approach between the heating media and the heated sugar juice streams. This in turn enables low grade vapours or waste heat from other processes to be used as heating sources, which helps producers reduce the overall energy use and reduce production costs.
Cane processing
In cane sugar mills, Alfa Laval decanter centrifuges are an efficient alternative to a traditional rotary vacuum filter when it comes to dewatering sugar mud from the bottom of the sugar clarifier. This reduces sugar loss and allows more bagasse available to boilers to produce more steam for power production.
Sugar refining
In sugar refineries, decanter centrifuges can be used to dewater sugar scum from the raw sugar clarifier, reducing sugar loss, saving water and simplifying disposal.
The high-efficiency standard-gap gasketed plate heat exchangers from Alfa Laval can exploit the vapour bleed-offs and condensate from the evaporators as heat sources. This reduces energy consumption for sugar refiners and maximizes the capacity of the evaporators.
Evaporation
AlfaVap plate evaporators can be installed as a booster to existing Robert evaporators. The AlfaVap expands the heat transfer area and can use the existing evaporator’s vapour or liquid separator, making it a very cost-efficient expansion of the evaporation capacity. The low weight, compactness and versatility of the AlfaVap design means it can be mounted virtually anywhere to extend the evaporation capacity of an existing installation. Depending on capacity, AlfaVap units can also be used as a complete evaporation system.
Syrups, molasses and other high-viscosity fluids
Alfa Laval standard plate heat exchangers provide efficient heating and cooling of high-viscosity liquids. Alfa Laval’s product portfolio for the sugar industry also includes rotary lobe pumps that are robust and durable even when handling abrasive media containing crystals.
Condensation
The AlfaCond plate heat exchangers combine the benefits of the plate concept, high efficiency, compactness and flexibility with the benefits of large connection ports and low pressure drops in shell and tube condensers. Ideal as a vacuum condenser, the AlfaCond plate condenser keeps the condensate separated from the cooling media. As legislation about wastewater treatment becomes increasingly stringent, this becomes an ideal option for installations where barometric condensers have been the traditional choice.
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