Palm Oil Decanter Centrifuge From Shenzhou

• Customization: Available
• After-sales Service: Online Support
• Warranty: 1 Year
• Model NO.: LWS
• Type: Centrifuge
• Object: Separation of Solid and Liquid Settlement
• Separation Mode: Sedimentation Type
• Operating Type: Continuous Type
• Installation: Horizontal
• Centrifuge Type: Horizontal Spiral Centrifuge
• Extraction Tower Type: Turntable Tower
• Pressure: Low Pressure
• Condition: New
• Motor: ABB
• Touch Screen: Siemens
• Inverter: ABB
• PLC: Siemens
• Transport Package: Wooden Case
• Specification: Depends on the model
• Trademark: Shenzhou
• Origin: China
• Package Size: 130.00cm * 90.00cm * 160.00cm
• Package Gross Weight: 1050.000kg

Product Description

Palm oil decanter centrifuges are designed for oil clarification and purification. The palm oil decanter centrifuge offers maximum oil recovery from sludge underflow or empty fruit bunch liquor with low energy consumption, excellent solid dryness and high-quality separation. The LWS is a proven decanter for the processing of crude palm oil and is well suited for the heavy duty and tough environment of the application.

Solid Bowl Decanter Centrifuge Speed Drum 4200 R/Min For Liquid Clarification

Decanter centrifuge is a mechanical equipment which utilize the principle of centrifugal and sedimentation and can carry out continual separate the suspend liquid with density difference.

The centrifuges which made by out factory can clarify, dehydrate and classify the suspensions with 0.002-3 mm solid-phase particles and thickness range at 0.5~40%.

The product can be classify into two type LW-counter-current and parallel-current base on its structure feature. According to feed feature, product can be divide into LW two-phase separator, LWS three-phase separator.

It is suitable for separating different feed under different process condition, and widely use in pharmaceutical, food, chemical, light industry, environmental protection industry etc…

The high-performance three-phase decanters are purposely designed for processing crude palm oil, with oil loss reduction rate surpassing industry acceptable limits. Critical parts of the industrial decanter are made from wear resistant material, making it durable and low-maintenance. With a compact, modular and automatic Cleaning-In-Place (CIP) design, these oil decanter centrifuges offer efficient non-stop operation, reliable separation of liquid, dry solids (cake) and oil whilst saving space. Our smart automatic control system and special power tube design provides easy optimization.

 

Operating principle:
The purpose of separation is to separate out substances with different mass ratios from mixed fluid.Separation forms included solid-liquid separation,liquid-liquid separation and liquid-liquid-solid separation.
When mixed fluid enters rotating bowl of centrifuge through feed tube ,solids with larger density would rapidly deposit on inner wall of the bowl,forced by centrifugal acceleration.Then spiral pusher pushed deposited solids to taper end of the bowl,and discharges them out of centrifuge from residual outlet.Meanwhile ,liquid phase with smaller density forms a liquid ring layer and discharges from bowl through overflow port,the bowl and spiral pusher run at a high speed simultaneously ,for there exists speed discrepancy,deposited solids on the wall of bowl could be conveyed to residue outlet by spiral pusher.This separation process carry out continuously.

Separation technique
Feeding-gravitational separation-liquid discharge-sediment discharge.
Separation effect factors Centrifuging factor ,length to diameter ratio of cavity ,depth of fluid pool.
Field control
Bowl rotating speed ,rotative speed difference,between,spiral pusher and bowl depth of liquid pool.

In the production of surimi, the shredded fish fillets will go through two to three cleaning processes. In this process, impurities such as blood and fat are washed away. The washing water is usually roughly filtered through a rotating sieve. In traditional surimi production, the dehydration of fish meat is done by a screw press. The meat is then treated with antifreeze and deep-frozen. This surimi production method has many disadvantages: Different washing stages and screw pressing process lead to a large amount of fish fiber loss 1.Need a lot of cleaning water 2.Huge space requirement 3.The raw material is easy to be infected with bacteria The Shenzhou decanter centrifuge can solve all the above problems. In the production of surimi, the decanter centrifuge can not only recover the fish meat from the washing water, but also replace the screw press. In this way, the output rate of the surimi production process can be significantly improved.

The highly efficient palm oil decanter comes with the following benefits:

• Higher yield as you reduce palm oil loss with maximum oil recovery from sludge Low power consumption thanks to an innovative liquid outlet power tubes design (up to 30% lower than with conventional outlet design) Improved separation of palm oil in a cost-efficient way Improved solids dryness, leading to lower costs for drying or disposal Increased capacity with same or less space requirement, for a smaller investment

 

1, Helical pusher adopts the special antifriction method: sprinkle hardness alloy or inlay hardness alloy anti-friction disk; anti -corrosion stainless steel is employed for the material of the main parts of drum, so that assure the durability and longer using lifetime of the equipment.

2, According to the operating condition's characteristics of material, optimize the drum length-diameter raido, drum and structure
of drum taper parts.

* Reduction of beer evaporation
* Gentle processing of beer
* Yeast cake with a high dry substance content
* Lower wastewater loads
* Easy to integrate into existing processes


Application fields

• Oil recovery from sludge underflow
• Oil recovery from empty fruit bunch liquor
• Desludging of anaerobic effluent ponds

Ban Dung palm oil industries impressed with the shenzhou decanter centrifuge

The LWS is a cumulation of decades of innovation and breakthrough by the Shenzhou R&D team. This high capacity and high performance decanter is now ready to meet the needs of the palm oil industry. 

Model	Diameter(mm)	Lenght(mm)	Max speed	L/D ratio	G-force	Capacity(m3/h)	Main motor power(Kw)	Weight(kg)	Dimension (mm)
LW250*1000	250	1000	5000	4	2722	0.5-5	7.5	950	2120*1250*680
LW300*900	300	900	4200	3	2964	1-6	11	1160	2150*1300*900
LW300*1200	300	1200	4000	4	2784	2-6	11	1350	2450*1300*900
LW355*1160	355	1160	3600	3.3	2576	2-8	15	1400	2470*1350*830
LW355*1460	355	1460	3600	4	2576	2-10	15	1800	2750*1350*830
LW400*1200	400	1200	3200	3	2294	3-12	18.5	1800	2730*1600*1080
LW400*1600	400	1600	3000	4	2016	3-15	22	2000	3130*1600*1080
LW450*1800	450	1800	2800	4	1976	4-25	37	2500	3320*1700*1130
LW500*2000	500	2000	2800	4	1750	5-35	45	4000	3520*1800*1170
LW530*1855	530	1855	2600	3.5	2006	5-38	55	4680	3885*1350*1600
LW530*2120	530	2120	2400	4	1709	5-40	55	4800	4150*1350*1600
LW550*2000	550	2000	2800	4	2414	6-40	55	5700	4570*1380*1600
LW650*1950	650	1950	2200	3	1761	6-45	75	5000	4840*1510*1720
LW650*2600	650	2600	2000	4	1456	6-65	90	6000	5490*1510*1720
LW720*2160	720	2160	2000	3	1612	7-80	120	6000	5200*1600*1800
LW720*2880	720	2880	2000	4	1306	7-90	120	8000	3100*1600*1800
LW800*2400	800	2400	1800	3	1451	20-100	150	12000	5820*2000*1300
LW800*3200	800	3200	1800	4	1451	20-120	150	1300	7100*2000*1300

 
 

How it works

How the  Palm Oil Decanter works

Whatever the application, decanters work according to the same basic principles.

The separation of either pressed palm oil, sludge from settling tanks or empty fruit bunch liquor into dry solids (cake), mill effluent (water) and recovered oil fractions takes place in a horizontal cylindrical bowl equipped with a screw conveyor. The palm oil product is fed into the bowl via a new inlet feed zone which provides effective and gentle acceleration resulting in less emulsions created and no tendency for plug up. Centrifugal force causes instant sedimentation of the dry solids on the wall of the bowl, and the liquid phases - heavy phase (water) and light phase (oil) - separate in layers. The conveyor, rotating in the same direction as the bowl but at a different speed, moves the solids to the conical end of the decanter. Here, the solids are lifted clear of the liquid and centrifugally dewatered before discharge into the collecting vessel. The clarified liquids overflow into the decanter's casing through an opening in the cylindrical end of the bowl. Both phases leave the collecting compartments in the hood by gravity flow through outlets under the machine.


Main technical features

1. Industrial design

Whole machine set design follows concept of advanced industrial design,ensures stability,functionality and safety of whole machine.Also effectively absorbs shear force of dynamic load during operation.


2. Effectively ease resonance during rotating of bi-rotor

When centrifuge works,there is no obvious first-order and two-order resonance regions within designed speed range,meanwhile ,whole vibration intensity of bearing seat is definited within 2mm/s-4mm/s.All of this eliminates extra fatigue damage to components and assembly units from high frequency vibration during operation and sudden vibration when shut down.

3. Thoroughly eliminate phenomenon of liquid ring stalling

Phenomenon of liquid ring stalling happens during heavy duty boot or shutdown process of complete set machine,especially for LW550 and even larger models,It would makes bounce or wild shake,causes extra impact fatigue damage to main bearings,screw bearings and inner parts of rotary bowl.Fortunately ,our engineers have solved this problem thoroughly.
4. Unique technique adopt in main component work-blanks 

The manufacturing methods of main component work-blanks are adopt centrifugal casting technique and overall mould-making forging technique,thoroughly avoid risks such as inter-granular corrosion and relaxation of residual stress release in welding joint.

5. Constant temperature detection

All fashioning components and assembly units are detected in constant temperature condition,to make sure of actual processing quality meets the requirements of designed precision accuracy.

6. Inter-change ability

Whole machine physical design and processing technique adopted in critical position,ensure all assembly units and bowls of the same centrifuge model interchangeable.It is not only easy to maintain ,but also greatly improve the reliability and safety of equipment.

7. Simplyand safely in bearing disassemblement

One layer of oil film is injected into contact surfaces between bearing and work-piece by high-
pressure,during disassemblement bearing from the machine.which would fundamentally eliminate friction within different parts.As a result,it would reduce 90% of pulling force and lower the risk of damage to high-precision parts when disassemble bearing.
8.Main bearing lubrication system
There are two kinds of lubrication system for specific product models :
A thin oil lubrication
* Oil pump offers an uninterruptedly power to ensure oil works circularly;
* Jet oil lubrication constantly clean and lubricate bearings and reduce temperature;
* Oil filter system ensure lubricant's cleanliness;
* Oil pressure energy storage system ensure lubrication pump offers an extra oil supply(the pressure is no less than 0.4Mpa) for 5-6 minutes,when power fails accidentally;
* Constant temperature system is available.


B grease lubrication
* Adopt a grease with properties of extreme pressure resistance ,oxidation resistance ,abrasion resistance,water scour
resistance,corrosion-proof and high temperature resistance.
* Optional automatic grease system fills grease on main bearing at designed hours and quantity.

9. Main bearing BH device (patent design)

There are two spare safe bearings at either end of main bearing.When machine works well,they keep certain clearance from bearing inside track to chief axis.When unexpected condition occurs,main bearing got damaged or circle center deviation causing an amplitude of vibration reaches to designed clearance,safe bearings begin to work as main bearing Meanwhile,computer automatic control system would get a feedback of abnormal vibration value on bearing position immediately then activates emergency shutdown and goes a smooth shut down.This system protects machine free from damaging and ensure production safety.

10. GSRL feeding device (potent design)

New design of internal spiral core tube has got following achieves.Without reducing centrifugal acceleration,shorten triangle belt's traction time,reduce disorder of swirling flow and extend separation time.Meanwhile increases inner working pressure of centrifuge,and restrains liquid foaming.

Innovative liquid outlet design

In Senz decanters an innovative liquid outlet design reduces power consumption (up to 30% lower than with conventional outlet design).  The Basic Control System, makes it easy to upscale and downscale capacity.

 

Drive system

In all  three-phase decanters the bowl is driven towards the conical end piece by an electric motor and V-belt transmission. Power is transferred to the conveyor via a planetary gearbox. 

The speed difference is controlled in different ways, depending on the decanter type:

• LWS decanters feature a countershaft transmission, where pulleys can be changed manually to optimize the differential speed SHENZHOU VFD decanters are equipped with an automatic back drive system for the main motor. By measuring torque the VFD system optimizes the differential speed without changing belts or pulleys for an overall reduction of the power consumption.

Control systems - process optimization with Basic Control System

SHENZHOU decanters with variable frequency drive (VFD) are delivered with the automatic Basic Control System. This control package is capable of fully controlling the decanter operation, including liquid clarification, solid dryness level, adjustment of process differential speed, automatic solid load and feed of incoming material.

The Basic Control System ensures efficient performance and keeps the cost for installation, commissioning, operation and maintenance to a minimum. It is also designed to measure bearing temperature and to monitor the vibration levels. 
SHENZHOU decanters with Basic Control System can be adjusted to suit specific process requirements by varying:

• Bowl speed to obtain the G-force required for the most efficient separation
• Pond depth in the bowl for optimum balance between liquid and oil clarification, while at the same time optimizing the solids dryness
• Conveyor speed for most efficient balance to ensure minimum wear from abrasive solids
• Feed rate to handle a wide range of different flows when operating on various types of solids and oil contents.

SHENZHOU decanters that have countershaft transmission are equipped with the Star-delta start-up system as standard.