macfuge separator for vegetable oil -...

www.macfuge.com MACFUGE VEGA: NO/NOL Confidential

MACFUGE SEPARATOR for VEGETABLE OIL

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MACFUGE Centrifugal Separator for Oil Refining Industry

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Centrifugal separation is used in various stages of oil refining. MACFUGE NO/NOL are specific for these stages:

CRUDE OIL

WATER DEGUMMING (ACID+WATER DEGUMMING)

(ENZIMATIC DEGUMMING)

NEUTRALIZATION (+ACID DEGUMMING)

WASHING

REFINED OIL

Legenda: NO: degumming and neutralization NOL: washing PT: self cleaning M: manual cleaning (solid retaining) 3S: purifier with paring discs

MACFUGE 325 NO/NOL PT 3S MACFUGE 450 NO/NOL PT 3S MACFUGE 590 NO/NOL PT 3S MACFUGE 710 NO/NOL PT 3S MACFUGE 711 NO/NOL PT 3S

MACFUGE 306 NO/NOL M 3S MACFUGE 053 NO/NOL M 3S MACFUGE 105 NO/NOL M 3S MACFUGE 106 NO/NOL M 3S

•degumming • de-waxing, winterization • neutralisation • washing


MACFUGE NO/NOL PT 3 S: self cleaning separator for refinery

The self cleaning centrifuge s MAFUGE type NO/NOL PT 3S are designed

especially for vegetable oil refinery :

• materials of construction • internal bowl configuration

• paring discs and liquid outlets • automatic control routines

• other special devices

are designed and built for this specific application.

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1 Product feed 2 Light phase outlet 3 Heavy phase outlet 4 Solids discharge 5 Outlet group 6 Cover (upper cover) 7 Basin (lower cover, sludge collector) 8 Basement 9 Bowl

10 Vertical shaft group 11 Motor 12 Horizontal shaft group

MACFUGE type NO/NOL PT 3S - GENERAL DESCRIPTION

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MACFUGE type NO/NOL PT 3S: • liquid/liquid/solid separator • self cleaning (solid automatic discharging) • integrated pump on heavy and light phase • gear drive without clutch • motor for frequency converter • Bowl in Duplex Stain Steel • Stainless steel wet parts (product contact)


MACFUGE type NO PT 3S - FUNCTIONAL DESCRIPTION

The mixture to separate is continuously fed (1) and enter in the fast rotating bowl through the stationary feed pipe (9). The distributor (10) accelerates and convey the product to the discs stack (11) where the different phases are separated. The liquid phases are extracted by centripetal pumps (7,8), while the solid phase is collected in the sludge space (12). When the PLC gives the command for discharging, operating the solenoid valve group (5), the bowl “open” and the solid flow outside in the basin through the discharging ports(12), and from here to the solid discharge outlet (4)

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1 Product feed 2 Heavy phase outlet 3 Light phase outlet 4 Solids discharge 5 Solenoid Valve group for discharging sequence 6 PLC (control panel) 7 Heavy phase pump (paring disc/tube) 8 Light phase pump (paring disc) 9 Feed pipe

10 Distributor and disc stack support 11 Separating discs (disc stack) 12 Sludge space with discharging ports


MAIN FEATURES: introduction

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1 Basin and cover Double stainless steel wall, the cavity is filled with insulating and sound proof material.

2 Bowl design Internal design and configuration specifically conceived for the application.

3 Adjustavle Level (variable paring tube)(*) The radius of the heavy phase centripetal pump (paring tube) is adjustable during operation to optimize the separation efficiency for different running condition

4 Heavy phase fluidification(*) Water injection points for fluidification of the heavy phase. For a better extraction of gums and soap

5 Basin and cover washing Water injection points to flush the basin and the cover and keep them clean

6 Inlet and outlet groups Configuration specifically conceived to optimise and check the working. Sight glass of heavy phase with water flushing to remove contaminant accumulation

7 Junction box for electrical and hydraulic connections

8 Main Motor: for frequency drive, assembled to the basement, coupled with the gear without clutch

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Note (*): for NO only


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Adjustable Heavy Phase centripetal pump (variable paring tube)

Adjustable heavy phase centripetal pump The geometry of the heavy phase centripetal pump is manually adjustable during the process. Any variation correspond to a different distribution of the phases inside the bowl, thus adapting the separation to different product properties (feed composition)


Transmission and Lubrication

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Lubrication: The lubricating oil is contained in a closed carter, and lubricate thanks to the movement of the gears. The fine tolerance of construction of the driving system allows for no need of lubricating pump, nor cooling system, nor temperature control.

Direct Transmission: The movement is transmitted from the motor directly to the gear through a mechanical coupling without clutch. The motor is driven by a frequency converter that dispense the power and control its absorption. The electronic control allows to obtain a smooth start up and stop, and to dose the power during the sludge discharge operation (bowl cleaning) The frequency converter also control the speed and current absorption, monitoring the status of the centrifuge (see also discharging system) and generating alarm


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Discharge system (pag1 of 2)

DISCHARGE VOLUME vs. OPENING TIME

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0,6 0,8 1 1,2 1,4 1,6 1,8 2 2,2 2,4

opening time (s)di

scha

rge

volu

me

(l)

Discharge System The system is very simple and flexible allowing for total and partial discharge by setting in the PLC the interval and the frequency times. The discharging volume is set by setting the opening time The discharge frequency is set by setting the interval between each total discharge and partial discharge. The bowl is kept closed by the force generated by the centrifugal force on a small amount of water contained in a special channel below the bowl bottom. The opening/closing of the solenoid valve modify this force, allowing the water to “escape” or to “enter”, so causing the opening and closing of the bowl The water in the channel is kept constant by the PLC that introduce the necessary water from the water supply (min pressure need 1,5bar)


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Dicharge system (pag.2 of 2)

DISCHARGE VOLUME vs. OPENING TIME

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0,6 0,8 1 1,2 1,4 1,6 1,8 2 2,2 2,4

opening time (s)

disc

harg

e vo

lum

e (l)

Main Advantage Possibility to select and regulated any volume by just setting different opening time within the allowed interval Solenoid valves mounted on board No needs for extra equipment Monitoring and Alarms Thanks to the control of the PLC connected with the Frequency converter, the system generate three alarms: - Bowl not closing properly - Bowl not opening - Unexpected Bowl opening


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Junction box for electrical and hydraulic connections

Junction box A box for the electrical connection is mounted on the centrifuge frame of the bigger MACFUGE models

Hydraulic connections On the centrifuge is installed a set of all the hydraulic connections and solenoid valves necessary for the feed and the control of: • manoeuvring water • washing/cooling water • fluidification of the heavy phase • sight glass washing


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Connection and control


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DISC STACK

Internal design and configuration specifically conceived for the application. New concept of discs stack: two

different disc designs to perform a better separation, maintain fluidity and even product distribution. To avoid sticky of the solid phase., with consequent clocking of disc channels and separation efficiency reduction

The bowl contains an high number of discs : 50% of one design, 50% of the other one


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BOWL SHAPE

Internal design and configuration specifically conceived for the application.

Double angle in the solid discharge chamber, enlarged in the discharge zone, for better and more reliable discharge, larger space for solid and paste accumulation to avoid separation disturbance


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DISTRIBUTOR

Accellerating Wings The internal channel of the distributor contains special wings that get in contact with the product at closest radius, thus working as surface and channeling, accompanying the smooth accelleration of the fluid

Shaped Nut The nut where the fluid “fell” is shaped to invite the fluid itself towards the distribution channels


Basin and cover

Double stainless steel wall

The cavity is filled with insulating and sound proof material

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Noise level <85db in normal condition and correctly installed (measured at 1m in open space without echoing wall, according ISO 3746)


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Basin and cover washing/cooling

Basin and over washing: Possibility to wash and cool the basin and the cover continuously during the process in order to keep the machine clean. The water flow is programmable and controlled by the PLC.


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Fluidification of the soaps and gums

Fluidification of the soap stock Possibility to fluid the heavy phase in order to facilitate the oil degumming extraction. The water flow is programmable and controlled by the PLC.


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Inlet and outlet groups

Heavy phase outlet Sight glass with washing water on the heavy phase outlet: the water flow is programmable and controlled by the PLC.

Inlet and outlet groups Design and configuration of the product inlet and the outlet of the heavy and light phases and the discharge of the solid phase are specifically conceived for the application. Product inlet • Sight glass • Flexible hose (stainless steel) Light phase outlet • Manometer • Sight glass • Manual regulating valve • Flexible hose (stainless steel) Heavy phase outlet • Manometer • Sight glass (with washing water) • Flexible hose (stainless steel)


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Materials of construction

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1 Basin and cover Stainless steel AISI 304

2 Bowl • Structural parts (bottom, cover, sliding part): duplex stainless steel F51 • Big nut: stainless steel X12Cr13 • Discs: stainless steel AISI 316 • Other parts: stainless steel AISI 316

3 Inlet/outlet groups Stainless steel AISI 316

4 Pipe and other external parts Stainless steel AISI 304

5 Basement (*) Heavy cast iron G25 (MACFUGE 450 welded steel, heat treated, sandblasted) Painted with epoxy resin. Optional: stainless steel cladding

6 Main gaskets FPM/FKM (viton)

Note (*) for the MACFUGE 450: welded steel, heat treated, sandblasted and painted


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Bowl Material: Shell made in Duplex Stainless Steel

For Food and any Application, all sizes except 711 DUPLEX STAINLESS STEEL type: F51 – DIN 1.4462 – SAF 2205 Class: High Alloyed Stainless Steel – Ferritic-Austenitic (Duplex)

Optional For NOT Food Application and for MACFUGE 711 HIGH ALLOYED STAINLESS STEEL type: DIN 1.4418 Class: High Alloyed Stainless Steel – Martensitic-Austenitic (Not Duplex)

Bowl cover Bowl shell

Sliding bowl bottom


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Internal bowl parts: AISI 316 (high grade s.s.)

For Food Application and High quality requirement HIGH ALLOYED STAINLESS STEEL type: AISI 316 and AISI 316L Class: High Alloyed Stainless Steel –Austenitic Nichel Chromium Stainless Steel with Molibdenum

Optional For Lower requirement applications: HIGH ALLOYED STAINLESS STEEL type: AISI 304 Class: High Alloyed Stainless Steel –Austenitic Nichel Chromium Stainless Steel without Molibdenum Or other material for NOT Food: Bronze, bronze aluminium, etc.

Inlet/outlet group Paring disc

Dividing Cone Discs

Distributor Nut


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Solution for easy and safe maintenance

Lifting of the bowl without removing the lock ring The bowl design allows to remove the same from the centrifuge body without unscrewing the lock ring. This is thanks to a special tool that allow to remove the bowl nut, securing the bowl to the vertical shaft, just after removing the inlet/outlet groups. No needs to hammering the lock ring while the bowl is still mounted on the bearing seat, with risk of damaging the bearing and the shaft.


Simple maintenance:


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P&ID EXAMPLE


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MACFUGE 450 NO/NOL PT 3S – Technical data

Bowl Rotation speed 7600 rpm Total volume 13 l Sludge chamber 2,5 l (max.)

Motor Power 15 kW Rotation speed 1500 rpm

Weight Bowl 200 kg Centrifuge 800 kg

Dimensions Length 1250 mm Width 760 mm Height 1600 mm

Capacity* Degumming Neutralization 130 t/d

Washing 150 t/d * nominal capacity for treatment of oil with FFA less then 3%. The actual capacity depends from local process condition


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Bowl Rotation speed 5800 rpm Total volume 31 lt Sludge chamber 3 lt (max.)




Capacity* Degumming Neutralization 250 t/d

Washing 250 t/d * nominal capacity for treatment of oil with FFA less then 3%. The actual capacity depends from local process condition


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Bowl Rotation speed 4800 rpm Total volume 48 l Sludge chamber 17 l (max.)




Capacity* Degumming Neutralization

400 t/d

Washing 450 t/d * nominal capacity for treatment of oil with FFA less then 3%. The actual capacity depends from local process condition.


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Top Values of MACFUGE Centrifugal Separators

Performance • Reliable bowl discharge system • High flexibility • High throughput capacities

Discharge • Wide opening gap • Exact and fast opening • No tilting of sliding piston (even opening gap)

Separator efficiency • Low oil losses • Low soap content on oil • Ability to discharge viscous gums or soaps

Flexibility • Easier handling during start-up (no break-over) • No break-over after discharge (lower losses) • Lower power consumption

macfuge separator for vegetable oil -...

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