PX 80 Disc stack centrifuge0 pages

Medium-capacity disc stack centrifuge for fats and oils refining
PX 80
The Alfa Laval range of centrifuges for the vegetable and
animal oils refining industries is continuously modernized to
incorporate the advantages of current developments in materials,
mechanical design and fluid dynamics. The PX 80 is a
medium-sized machine in this range of centrifuges.
Applications
Continuous degumming, neutralizing, dewaxing, and washing
of fatty oils, such as vegetable oils, lard, tallow and fish oil.
Performance
The table below shows nominal capacities. Actual throughputs
vary according to the type of oil and fat to be treated.
Degumming, neutralization, washing 18,750 kg/h
Dewaxing 8,000 kg/h
Standard design
The machine consists of a frame with a base that contains
a horizontal drive shaft, worm gear, lubricating oil bath, and
hollow vertical bowl spindle. The bowl is fixed on top of the
spindle, inside the space formed by the upper part of the
frame, the solids collecting cover, and the frame hood. The
hood carries the liquid discharge system.
All parts in contact with the process liquid are made of stainless
steel.
The bowl is of the solids ejecting disc type, with an automatic
hydraulic operating system for “shooting”. The standard electric
motor is suitable for variable frequency drive.
Design features
The PX 80 is based on a unique, semi-hermetic design
concept. The hermetic, bottom-fed inlet ensures a gentle,
non-destructive acceleration of the feedstock up to full
bowl speed.
The outlets on the heavy and light phases are open, reducing
the pressure drop across the separator. The feed-pressure
requirement of the machine is therefore low.
The outlets are equipped with stationary paring devices for
removal of the different phases. The paring disc on the light
phase is fixed, while the paring tubes on the heavy phase are
adjustable.
PX 80 complete with motor
By adjusting a positioner on the heavy phase outlet, the
operator can reduce or enlarge the paring diameter of the
paring tubes. This patented innovation makes it possible to
adjust the position of the separation interface during operation,
facilitating optimal separation.
With the working environment in mind, the PX 80 is designed
to operate at low noise levels. This is achieved by means of
a rubber-damped bearing assembly, jacketed frame and an
outer bowl design engineered for low wind noise.
Standard equipment
Each PX 80 comes complete with control unit, electric motor,
inlet and outlet connections, auxiliary equipment, a spare
parts kit and a set of tools.