Separation takes place in a horizontal bowl equipped with a scroll conveyor. The process material is fed into the bowl through a stationary inlet tube and is smoothly accelerated in the accelerate chamber. Centrifugal forces cause instant sedimentation of the solids on the wall of the bowl. The conveyor rotates in the same direction as the bowl, but at a different speed, thus moving the solids towards the conical end of the bowl.
LW series three phase decant centrifuge is used for solid-liquid-liquid separation, namely one kind of solid phase (with largest specific gravity ) and two kind of immiscible liquid phase with different density. The conveyor rotates in the same direction as the bowl, but at a different speed, the material is fed into the bowl through a stationary feed pipe. Centrifugal forces cause instant sedimentation of the solids on the wall of the bowl, while two liquid phases forming light liquid phase layer and heavy liquid phase layer. Scroll conveys the solids towards the conical end of the bow, and out of centrifuge from solid discharge port. The light liquid phase then is discharged out continuously through the overflow port at the large end of the bowl, and the heavy liquid phase will be discharged out through the centrifugal pump large end of the bowl, thus realizing the three-phase separation.
Main applications
Industrial and municipal wastewater treatment
Oil & gas drilling mud/fluid control
Washing, classification and dewatering of amylum and starch
Mycelium separation from zymotic fluid of antibiotic
Dewatering of soybean and wheat protein
Dewatering of fish power and fish meet
Dewatering of grains
Clarification and extraction of fruit juice
Clarification and purification for animal and vegetable oil
Production and extraction of olive oil, palm oil, avocado oil
Separation and purification for coal tar
Grading of kaolin and graphite
Classification and dewatering for dyestuff and pigment
Float wash of extractive coal and dewatering of coal mud
Classification and dewatering for minerals
Vertical base design and symmetrical arrangement of motor and bowl assembly, that ensures stable operation and less vibration.
Main parts such as the bowl and conveyor are made of corrosion-resistant stainless steel or duplex steel, offering high maximum bowl speed and high centrifugal force.
Dual motor drive makes bowl speed and conveyor speed adjustable.
Screw conveyor flights tiled or lined with ceramic, tungsten carbide, or other hard alloys.
Optionla planetary gearbox and hydraulic gearbox, offering wide range of differential speed adjustment.
Multiple safety protection: bowl speed and differential speed detection, over-vibration protection, motor overload and overheat protection, bearing temperature monitoring, conveyor torque protection and gas-tight explosion-proof protection.
JG type rubber vibration isolator, no need of anchor bolts.
Parameters
Model |
Technical parameter |
motor power |
outline dimension(mm) |
Machine weight
(KG) |
| (Diameter)mm |
Rotation speed
rpm |
Length mm |
Separation factor
G |
capacity
M3/h |
Main motor KW |
Vice motor
KW |
Dimension:
L×D×H |
|
| LW250×1000 |
250 |
3600 |
1000 |
1813 |
1-3 |
7.5/11 |
4/5.5 |
2065×1050×800 |
1100 |
| LW360×1200 |
360 |
3500 |
1200 |
2467 |
3-8 |
11/18.5 |
7.5/11 |
2600×1500×850 |
1900 |
| LW360×1500 |
360 |
3500 |
1500 |
2062 |
3-8 |
11/18.5 |
7.5/11 |
2800×1400×850 |
2000 |
| LW420×1750 |
420 |
3200 |
1750 |
2406 |
4-20 |
30/37 |
11/18.5 |
3120×1580×1050 |
3000 |
| LW450×1600 |
450 |
3200 |
1600 |
2578 |
5-25 |
30/45 |
11/22 |
3780×1050×1180 |
3500 |
| LW450×1800 |
450 |
3200 |
1800 |
2578 |
5-25 |
30/45 |
11/22 |
3985×1050×1180 |
3600 |
| LW450×2000 |
450 |
3000 |
2000 |
2266 |
5─25 |
30/45 |
11/22 |
4320×1050×1180 |
3800 |
| LW500×1800 |
500 |
3000 |
1800 |
2517 |
10-30 |
37/55 |
15/22 |
4200×1110×1200 |
4300 |
| LW500×2100 |
500 |
3000 |
2100 |
2517 |
10-30 |
37/55 |
15/22 |
4500×1110×1200 |
4500 |
| LW550×1800 |
550 |
3000 |
1800 |
2769 |
10-35 |
45/55 |
18.5/22 |
4380×1160×1230 |
4800 |
| LW550×2200 |
550 |
2800 |
2200 |
2412 |
10-35 |
45/55 |
18.5/30 |
4780×1160×1230 |
5000 |
| LW650×1750 |
650 |
2000 |
1750 |
1454 |
20-50 |
75/90 |
30/37 |
4576×1300×1250 |
6000 |
| LW650×2000 |
650 |
2000 |
2000 |
1454 |
20-50 |
75/90 |
30/37 |
4900×1300×1250 |
6200 |
| LW800×2000 |
800 |
1800 |
2000 |
1450 |
40-100 |
90/110 |
45/55 |
6052×1460×2100 |
10000 |
| LW1000×2350 |
1000 |
1600 |
2350 |
1432 |
50-140 |
110/132 |
55/75 |
6850×1860×2300 |
12800 |
The advantages of our product
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. Main bearing electrical components selection
We use origin bearings of international first-line brands such as S-K-F,F-A-G and so on.Electrical components mainly adopt ABB and Siemens
6. 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.
7. 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.
8. 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.
9.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.
10. 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.
11. 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
Company Introduction
FAQ
Q1: Where can I get product & price information?
A1: Send us inquiry or email directly, then we will contact you ASAP.
Q2: How can I make sure your machinery is suitable for me?
A2: Please tell all the separation information you know, such as your raw liquid,
two-phase or three-phase separation, solid content in liquid, solid size, the purpose, etc. After analyzing your information, we will to choose a suitable model for you, and send the details and videos to you.
Q3: What should I do if I want to see the separation effect?
A3: If you can come to our factory with the raw liquid, we will provide test service. Or you deliver the raw liquid to us, and we will do a test, and supply you the testing videos.
Q4: How to enjoy the OEM services?
A4: As the manufacturer of the machine, we will try our best to satisfy you if you have any specific requirement, such as the cover device, drum size, motor voltage, etc.
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