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LW250
SHENZHOU
Product Presentation
LW250 horizontal spiral sedimentation centrifuge: This equipment is an LW series product, usually used for dehydration and concentration. It is widely used for large dewatering requirements of municipal and industrial wastewater sludge. Small size, high speed, small processing capacity and other characteristics, are used for large separation factors, small processing capacity and other occasions. According to the actual use can be divided into clarification type, dehydration type, concentration type, separation type, classification type, and extraction type; Users can choose for themselves. Type 300 is suitable for easy separation materials with large particle size, large differences between solid and liquid density, low viscosity, high concentration, strong processing capacity and higher dryness than clarity. Materials such as sludge or wastewater containing fine particles usually need flocculants to condense the fine particles into large particles and then dehydrate them with sedimentation centrifuges.
operating principle
Decanter centrifuge is dependent on the density difference of solid-liquid two phases, under the action of centrifugal force, to accelerate the sedimentation rate of solid particles to achieve solid-liquid separation. The centrifuge consists of two rotors, one is called a rotating drum, and the other rotor is a spiral discharger (referred to as a spiral). When the drum rotates at a high speed, the slurry in the drum rotates with the drum and is subjected to centrifugal force, which is many times larger than the gravity force, so that the solid particles will be separated from the liquid, from the centrifuge drum axis, settling to the inner wall of the drum, the spiral discharger located in the drum rotates at a lower speed than the drum and pushes the deposited solid particles to the slag outlet. The speed difference between the external drum and the screw discharger depends on the differential mechanism ratio and its speed.
Scope of application:
1. Food
A: flesh processing,aquatic products process and edible protein recovery;
B: Extract plant protein from soybean,oily seeds and leguminous plants;
C: Recovery of brewing leach liquor malt and yeast
D: Treatment and recovery of wine lees liquid;
E: Extract of instant coffee and tea;
F: Clarification of palm oil,olive oil and seed oil;
G: Extract juice from fruits ,berries and vegetables;
H: Recovery of refined pectin;
I: Clarification of grape juice and grape wine.
2. Environmental protection
Drilling mud ,industrial effluent ,waste water of municipal works,fertilizer,organic waste water,paint sludge,plastic
particles,gravel washing water,waste water in steel-making ,flue gas desulfurization,sewage sludge treatment of waterworks.
3. Petroleum and chemical industry
A: Processing of kaolin and calcium carbonate,production of bentonite and titanium dioxide;
B: Exploration of petroleum oil,natural gas,crude oil refining and related industries,additive of lube oil and waste oil recovery;
C: Intermediate products and final products of organic chemistry industry;
D: Thermoplastic materials,includes PVC,polypropylene,polystyrene,synthetic rubber and fiber;
E: Inorganic chemical industry ,includes bleach,acid,silica products and fertilizers;
F: Treatment of spent wash and molasses fermentation residues;
G: Extraction of starch from wheat,corn ,cassava and potato;
H：Waste liquid recovery and recycling from above industries.
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 selection
We use origin bearings of international first-line brands such as S-KF,F-AG and so on.
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.
Technical Parameter
Users can comprehensively consider factors such as the physical properties, separation requirements, processing capacity, and process requirements of the separated material (suspension), and reasonably select the working parameters of the centrifuge, which can achieve satisfactory separation effects and economic benefits. Colours and materials can be customized.
| Model | Drum diameter （mm） | Length （mm） | Maximum speed rpm | Hightest separation factorg | production capacitym3/h | Motor Power Kw | Host weight Kg | Dimension(L*W *H) （mm） |
LW250x720 | 250 | 720 | 5000 | 3360 | 0.3-1.8 | 7.5 | 850 | 1950x1250x680 |
LW250x960 | 250 | 960 | 4500 | 2722 | 0.5-5 | 7.5 | 950 | 2120x1250x680 |
Packing & Delivery
Our service& FAQ
One-year warranty period for whole machine except of tubes and human factors etc, and 12-month of after-sale service from the date when you receive machine or 12 months when installation finished;
Consultant services for whole machine life, and 24 hours technical support by email;
UPS, English software, user manual and the installation & debugging by our experienced technicians.
1. Can your machine meet our need well?
We will supply you a proposal as to your specific requirement, and each machine is customized to satisfy customer’s need well.
2. Are you a factory or a trading company?
We are the manufacturer, and have been in industry for more than ten years.
3. What's your payment way?
T/T by our bank account directly, or by Made in China trade assurance service, or by the West Union, or in cash.
4. How can you ensure the machine’s quality after we put the order?
Before the delivery, we will send you machine’s pictures and videos, or you can come to us to have the quality checking by yourself, or by the third party inspection organization contacted by your side.
5. We are afraid you won't deliver us the machine after we pay you the money.
Please note our above business license and certificates. And if you don't trust us, you can use Made in China trade assurance service or by LC.
6. Why choose your company?
We have been engaged in the manufacturing of various packing machines professionally over 10 years, and we can provide better after-sales service.
Product Presentation
LW250 horizontal spiral sedimentation centrifuge: This equipment is an LW series product, usually used for dehydration and concentration. It is widely used for large dewatering requirements of municipal and industrial wastewater sludge. Small size, high speed, small processing capacity and other characteristics, are used for large separation factors, small processing capacity and other occasions. According to the actual use can be divided into clarification type, dehydration type, concentration type, separation type, classification type, and extraction type; Users can choose for themselves. Type 300 is suitable for easy separation materials with large particle size, large differences between solid and liquid density, low viscosity, high concentration, strong processing capacity and higher dryness than clarity. Materials such as sludge or wastewater containing fine particles usually need flocculants to condense the fine particles into large particles and then dehydrate them with sedimentation centrifuges.
operating principle
Decanter centrifuge is dependent on the density difference of solid-liquid two phases, under the action of centrifugal force, to accelerate the sedimentation rate of solid particles to achieve solid-liquid separation. The centrifuge consists of two rotors, one is called a rotating drum, and the other rotor is a spiral discharger (referred to as a spiral). When the drum rotates at a high speed, the slurry in the drum rotates with the drum and is subjected to centrifugal force, which is many times larger than the gravity force, so that the solid particles will be separated from the liquid, from the centrifuge drum axis, settling to the inner wall of the drum, the spiral discharger located in the drum rotates at a lower speed than the drum and pushes the deposited solid particles to the slag outlet. The speed difference between the external drum and the screw discharger depends on the differential mechanism ratio and its speed.
Scope of application:
1. Food
A: flesh processing,aquatic products process and edible protein recovery;
B: Extract plant protein from soybean,oily seeds and leguminous plants;
C: Recovery of brewing leach liquor malt and yeast
D: Treatment and recovery of wine lees liquid;
E: Extract of instant coffee and tea;
F: Clarification of palm oil,olive oil and seed oil;
G: Extract juice from fruits ,berries and vegetables;
H: Recovery of refined pectin;
I: Clarification of grape juice and grape wine.
2. Environmental protection
Drilling mud ,industrial effluent ,waste water of municipal works,fertilizer,organic waste water,paint sludge,plastic
particles,gravel washing water,waste water in steel-making ,flue gas desulfurization,sewage sludge treatment of waterworks.
3. Petroleum and chemical industry
A: Processing of kaolin and calcium carbonate,production of bentonite and titanium dioxide;
B: Exploration of petroleum oil,natural gas,crude oil refining and related industries,additive of lube oil and waste oil recovery;
C: Intermediate products and final products of organic chemistry industry;
D: Thermoplastic materials,includes PVC,polypropylene,polystyrene,synthetic rubber and fiber;
E: Inorganic chemical industry ,includes bleach,acid,silica products and fertilizers;
F: Treatment of spent wash and molasses fermentation residues;
G: Extraction of starch from wheat,corn ,cassava and potato;
H：Waste liquid recovery and recycling from above industries.
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 selection
We use origin bearings of international first-line brands such as S-KF,F-AG and so on.
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.
Technical Parameter
Users can comprehensively consider factors such as the physical properties, separation requirements, processing capacity, and process requirements of the separated material (suspension), and reasonably select the working parameters of the centrifuge, which can achieve satisfactory separation effects and economic benefits. Colours and materials can be customized.
| Model | Drum diameter （mm） | Length （mm） | Maximum speed rpm | Hightest separation factorg | production capacitym3/h | Motor Power Kw | Host weight Kg | Dimension(L*W *H) （mm） |
LW250x720 | 250 | 720 | 5000 | 3360 | 0.3-1.8 | 7.5 | 850 | 1950x1250x680 |
LW250x960 | 250 | 960 | 4500 | 2722 | 0.5-5 | 7.5 | 950 | 2120x1250x680 |
Packing & Delivery
Our service& FAQ
One-year warranty period for whole machine except of tubes and human factors etc, and 12-month of after-sale service from the date when you receive machine or 12 months when installation finished;
Consultant services for whole machine life, and 24 hours technical support by email;
UPS, English software, user manual and the installation & debugging by our experienced technicians.
1. Can your machine meet our need well?
We will supply you a proposal as to your specific requirement, and each machine is customized to satisfy customer’s need well.
2. Are you a factory or a trading company?
We are the manufacturer, and have been in industry for more than ten years.
3. What's your payment way?
T/T by our bank account directly, or by Made in China trade assurance service, or by the West Union, or in cash.
4. How can you ensure the machine’s quality after we put the order?
Before the delivery, we will send you machine’s pictures and videos, or you can come to us to have the quality checking by yourself, or by the third party inspection organization contacted by your side.
5. We are afraid you won't deliver us the machine after we pay you the money.
Please note our above business license and certificates. And if you don't trust us, you can use Made in China trade assurance service or by LC.
6. Why choose your company?
We have been engaged in the manufacturing of various packing machines professionally over 10 years, and we can provide better after-sales service.
