Merco

Plus de la moitié de l'amidon produit chaque année dans le monde passe par les séparateurs Merco d'Alfa Laval. Développé spécifiquement pour la production d'amidon, le séparateur Merco associe un débit élevé à une faible consommation d'énergie. La conception robuste et éprouvée du Merco garantit une longue durée de vie, une disponibilité fiable et de faibles coûts de maintenance.

Merco starch separator for starch processing

Robustesse et efficacité

  • Capacité de séparation accrue
  • Maintenance et entretien simplifiés
  • Installation facile
  • Faible consommation d'énergie
  • Possibilités de mise à niveau des anciens modèles
La centrifugeuse à buses Merco est spécialement conçue pour l'évacuation continue des solides et a été spécifiquement développée pour l'industrie de l'amidon. Elle est équipée d'un moteur, d'une crépine autonettoyante pour les capteurs d'alimentation, de vitesse et de vibration, de capteurs de température d'huile pour les roulements de broche et le bobinage du moteur, d'un groupe hydraulique pour le palan de levage, d'un ensemble d'outils spéciaux et d'un ensemble standard de pièces de rechange.

Designed to meet starch processing requirements

The Merco range of starch separators differs from conventional multi-purpose nozzle centrifuges, specially developed to meet starch processing requirements. These involve high solids loads and continuous discharge, combined with a need to avoid nozzle blockages. 

Merco nozzle centrifuges are now widely used in the starch industry for primary starch separation, gluten thickening, mill stream thickening and the clarification of middlings. As part of this, they are used for classifying, concentrating and washing solids and clarifying liquids that containing relatively high concentrations of solids. 

The key feature of the Merco starch separator design is a special recirculation system in which solids can be recirculated to the nozzles at the edge of the bowl at the same time as wash water is added. This unique capability means users can adjust starch production settings while the system is operating simply by varying the nozzle draw-off. 

The operator can change the split and the concentration by simply adjusting of the underflow draw-off valve in the discharge line. This provides a uniquely efficient way to control the starch separation process by determining exactly how much underflow is to be removed, how much is to be recycled back to the rotor and how much wash water is to be added. 

This also makes it possible to use large-diameter nozzles that can deal with variations in feed concentration and help prevent blockages. This, in turn, makes the unit more versatile and makes it easy to vary procedures based on the characteristics of individual feed flows. 

Our product range consists of two starch separator models - Merco 32 and Merco 38 - which can cover all the capacities and business demands at the milling plants.  

 

 

Merco 32 starch separator

Merco32 starch separator

When compared to the previous generation, the Merco 32 offers:

  • 50% more capacity
  • 30% energy savings

Merco 38 starch separator

merco38 starch separator

When compared to the previous generation, the Merco 38 offers:

  • 35% more capacity
  • 25% energy savings

 

 

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Where to use the Merco starch separator

Common applications: primary starch separation, gluten thickening, mill stream thickening and the clarification of middlings.

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How to upgrade your Merco H-30 to Merco 32 starch separator

If you own a machine of older generation Merco H-30 separator, you can easily upgrade it to the latest modification - Merco 32 - by replacing the bowl. It will allow you to increase the plant capacity considerably at a lower capital cost than purchasing a new separator. A new bowl can be installed within one day and at a minimum installation cost. 

Merco 32 Capacity Booster: simply replace your Alfa Laval Merco H-30 rotor assembly and feed inlet assembly with our new product Merco 32 rotor assembly and feed inlet assembly. Watch this video to see how easily it can be done with less investment. 

Download a leaflet about Merco capacity upgrade