Olive Oil (X)
For both two-phase and three-phase operation, the Alfa Laval Olive Oil X-series of decanter centrifuges is designed to provide cost-effective operation in the olive oil production chain: Clarification, extraction, dewatering and classification on first and second extraction.
Design features and benefits
The decanters feature a special system called Variable Dynamic Pressure (VDP). The geometry of the bowl and conveyor allows for a high pressure to be made on the solids before the discharge, thus being able to reach a higher level of dryness. Through the electronic control of the conveyor speed (differential speed) the level of this pressure can be adjusted and set to obtain the required degree of dryness.
Two-phase and three-phase
It is possible to use the same decanter for both two-phase and three-phase operation, on the basis of the differences in specific gravity.
In the three phase operation, the special features of the bowl geometry allow to utilize the so called ARA system. The ARA system controls the specific regulation of the decanter liquid level that both optimize quality of oil and water consumption.
The higher clarity of oil separated through the three phase process can be obtained with the addition of a lower amount of dilution water. This ensures a higher oil quality and reduced fresh water consumption. For the same reason, AISI 316 stainless steel is used throughout, and the casings are also made of stainless steel.
The design includes hinged casings for easy opening, maintenance and cleaning.
The decanters also have an overload protection system in either electronic or mechanical release version.
Hlas zákazníka
The Il Frantolio olive oil mill, Italy
I’m deeply close to Alfa Laval, because Alfa Laval has been continuously renewing their technology since 1973."
We are thankful for Alfa Laval, because the company has always helped us with great collaboration, dialogue and teamwork.”
- Pietro D’Amico, Owner of the Il Frantolio olive oil mill
Jak to funguje
Princip činnosti
Konstrukce dekantační odstředivky zajišťuje separaci přiváděné olivové pasty na tři fáze – olej, pevnou fázi a vodu.
Olivová pasta se do bubnu přivádí přes stacionární vstupní trubku a poté se plynule urychluje přívodním rotorem.
Separace probíhá v horizontálním válcovém bubnu vybaveném šnekovým dopravníkem. Odstředivá síla způsobuje okamžité usazování pevných látek na stěně bubnu.
Dopravník se otáčí ve stejném směru jako buben, ale jinou rychlostí, a dopravuje pevnou fázi do kuželového zakončení. Protože je lehčí, proudí olej uvnitř a pevné látky se pohybují směrem k vnějšímu obvodu, zatímco voda zůstává uprostřed. Separace probíhá po celé délce válcové části bubnu.
Dvě kapalné fáze procházejí přes vibrační filtr na příslušná výstupní hrdla a poté jsou vypouštěny do sběrných nádrží.
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