Horizontal Decanter Centrifuge Separation of Kerosene From Three-Phase Oil Sludge Decanter Centrifuge

• Customization: Available
• After-sales Service: Video Online Support
• Warranty: 1 Year
• Model NO.: LW/LWS series
• Type: Centrifuge
• Object: Liquid-Liquid-Solid or Liquid-Solid
• Separation Mode: Sedimentation Type
• Operating Type: Continuous Type
• Installation: Horizontal
• Centrifuge Type: Horizontal Spiral Centrifuge
• Pressure: Low Pressure
• Condition: New
• Discharge Type: Self-Cleaning
• Bearing: S-K-F Bearing
• Bowl Material: Stainless Steel 304/316L/Duplex Steel
• Separation: 3phase Separation
• Feature: High Efficiency
• Key Selling Points: Famous Brand PLC
• Transport Package: According to The Model
• Specification: According to the model
• Trademark: Shenzhou
• Origin: China
• Package Size: 330.00cm * 120.00cm * 120.00cm
• Package Gross Weight: 3000.000kg

Product Description

Horizontal Decanter Centrifuge Separation Of Kerosene From Three-Phase Oil Sludge Decanter Centrifuge
 

The three-phase decanter centrifuge is an efficient and reliable centrifugal solid-liquid-liquid separation equipment. It can quickly separate a mixture into two liquid phases with different densities and one solid phase. Common applications include liquid separation in industries such as kitchen waste slurry, industrial waste grease, animal and vegetable oils, oily sludge, and coal tar.

3-Phase Separating Decanter centrifuge also called tricanter in the world. The 3-Phase Separating Decanter is a centrifuge in which two liquids of different densities are separated from each other. At the same time solids are separated and discharged.

3 phase decanter centrifuge 

In the case of a 3-Phase Separating Decanter with centripetal pump for the light phase and gravity discharge of the heavy phase, the light liquid phase leaves the centrifugation space over an exchangeable regulating ring and is discharged under pressure by the centripetal pump. At the same time, the heavy liquid phase is discharged under gravity through exchangeable regulating tubes. Another technical variant is the case of a 3-Phase Separating Decanter with centripetal pump for the heavy phase and gravity discharge of the light phase. The choice of the appropriate design depends on the product to be separated and the lay-out of the customer installation.

 

Specification

Type	Max speed	Max separation value	Capacity	Power	Weight	Dimension(mm)
LWS300*1200	4000 r/min	3450 g	1-5 m3/h	18.5-22 kw	3200 kg	3500*1000*1500
LWS355*1460	3800 r/min	3070 g	3-6 m3/h	22-30 kw	2800 kg	3400*1100*1400
LWS420*1680	3700 r/min	3290 g	8-10 m3/h	30-37 kw	3200 kg	3500*1200*1500
LWS430*1950	3500 r/min	2950 g	8-12 m3/h	37-45 kw	3500 kg	3800*1200*1500
LWS520*2080	3500 r/min	3420 g	10-20 m3/h	45-55 kw	6000 kg	4300*1850*1300
LWS550*2200	3000 r/min	3020 g	12-25 m3/h	55-75 kw	6500 kg	4800*1500*1700
LWS650*2600	2900 r/min	3050 g	15-30 m3/h	75-110 kw	7500 kg	5200*1600*1800

 

Optimization and Adjustment Functions of Separation Effect

During solid - liquid - liquid three - phase separation, adjusting the heavy - phase liquid flow rate can optimize one - phase liquid clarity by changing the interface position. These functions meet requirements and enhance separation quality.

The three-phase decanter centrifuge with an adjustable impeller pump can adjust the flow rate of the clarified liquid inside the drum during solid-liquid two-phase separation and discharge it out of the machine under pressure. This way, the overflow orifice plate at the large end of the drum and the output pump for the clarified liquid can be omitted. Depending on the separation state of the materials, the depth of the liquid pool inside the drum can be adjusted online to improve the separation effect. During solid-liquid-liquid three-phase separation, by adjusting the flow rate of the heavy-phase liquid, the position of the interface between the heavy liquid and the light liquid can be changed. This device can optimize the clarity of one-phase liquid and reduce the downstream auxiliary equipment.

BT4 Explosion-proof Cabinet
PLC Frequency Conversion Cabinet
Frequency Conversion Electric Control Cabinet

A large number of optimization designs have been carried out for this control system to fully simplify the operation and maximize the convenience and effectiveness of the operation. The main and auxiliary motors are controlled to operate by means of variable-frequency starting, with the following characteristics: The main motor starts smoothly and can be adjusted steplessly; it can meet the processing and control requirements of liquids with different solid content rates; on-site operations such as "starting", "stopping", and "emergency stopping" can be performed. Running parameters and controls:

(1) Control and display of the rotating speed of the drum;

(2) Control and display of the rotating speed of the screw;

(3) Display of the currents of the main
and auxiliary motors;

(4) Overload protection and interlock protection for all electrical components.

This machine adopts the power-saving control technology of the common DC bus. During normal operation, the auxiliary motor is in a power generation state,and the electric energy is fed back to the main frequency converter and utilized by the main motor, which can reduce the running energy consumption and achieve an energy-saving effect.

Application fields

Polyoxyethylene resin	Sulphate	Diatomite	Starch
Soy Protein	Peanut protein	Fruit juice	Ammonium acid
Barium carbonate	Barium sulfate	Titanium dioxide	Titanium dioxide
Ore	China clay	Vegetable oil	Citric acid
Waste oil purification	Washing water purification	Distiller's grains	Animal fat
Blood meal	Power plant sludge	Printing and dyeing sludge	Paper sludge
Car wash sludge	Sludge drilling mud	Coal flotation waste	Cryolite flotation liquid
Weather desulfurization sludge	Power plant sludge	Activated sludge	Ammonia sludge

How it works

How does it work
The feed product is pumped into the decanter centrifuges through the inlet. Feed goes into a horizontal bowl, which rotates. The bowl has is composed of a cylindrical part and a conical part. The separation takes place in the cylindrical part of the bowl. The fast rotation generates centrifugal forces up to 4000 x g. Under these forces, the solid particles with higher density are collected and compacted on the wall of the bowl. A scroll (also screw or screw conveyor) rotates inside the bowl at a slightly different speed. This speed difference is called the differential speed. This way the scroll is transporting the settled particles along the cylindrical part of the bowl and up to the end conical part of the bowl. At the smallest end of the conical part of the bowl, the dewatered solids leave the bowl via discharge opening. The clarified liquid leaves through a paring disc (internal centripetal pump).
3-phase separation with a decanter

With a 3 phase decanter centrifuge, it is possible to separate 3 phases from each other in one process step only. For example, two liquids which cannot be mixed because of different densities (e.g. oil and water) are separated from a solids phase. The heavy liquid (water) collects in the middle between the oil and the solids layer. Thus the two liquids separated from each other can be drawn off from the decanter. The solids are transported via the scroll to the discharge
openings as it happens also in 2-phase separation.Typical applications of 3-phase separation are the production of edible oils such as olive oil, oil sludge processing, the production of biodiesel etc.
Parameters and influencing factors of the separation
Feed, throughput and residence time
Through the feed, the separation medium to be processed can be input into the center of the infeed chamber of the scroll, where it is accelerated. The throughput will have an influence on the residence time.
Decanter Centrifuges Acceleration
The separation medium reaches its maximum speed in the decanter bowl, causing the solids to settle on the bowl inner diameter. A characteristic feature of the bowl is its cylindrical/conical shape.
Differential speed

There is a differential speed between the decanter bowl and the scroll, which is created by a gear unit on the
industrial decanter centrifuges. The differential speed determines the solid content in the outfeed.
Filling volume / Weir discs or overflow weir The clarified liquid flows to the cylindrical end of the bowl in the decanter centrifuge, from where it runs out through openings in the bowl cover. These openings contain precisely adjustable weir discs/weir plates by means of which the pond depth in the bowl can be set. The weir discs determine the filling volume of the bowl.

Advantages and limitations over competitive processes
Generally the decanter centrifuge has more advantages than disadvantages; however, there are some limitations when compared to other processes.
Decanter Centrifuges Advantages:
* Decanter centrifuges have a clean appearance and have little to no odor problems.
* Not only is the device easy to install and fast at starting up and shutting down but also only requires a small area for
operation compared to other competitive processes.
* The decanter centrifuge is versatile as different lengths of the cylindrical bowl section and the cone angle can be selected for different applications. Also, the system can be pre-programmed with various design curves to predict the sludge type, while some competitive processes, such as a belt filter press, cannot change the belt type to operate for different sludge types. Its versatility allows the machine to have various functions such as operating for thickening or dewatering.
* The machine can operate with a higher throughput capacity than smaller machines. This also reduces the number of units required.
* The device is simple to optimize and operate as it has few major variables and reliable feedback information.
* The decanter centrifuge has reduced labor costs compared to other processes, as it requires low continuous maintenance and operator attention.
* Compared to some competitive process such as the belt filter process, the decanter centrifuge has more process flexibility and higher levels of performance.

Decanter Centrifuges Limitations:
* The decanter centrifuges cannot separate biological solids with very small density differences, such as cells and viruses. A competitive process that is capable of separating these difficult-to-separate solids is the tubular-bowl centrifuge.
* The machine can be very noisy and can cause vibration.
* The device has a high-energy consumption due to high G-forces.
* The decanter centrifuge has high equipment capital costs. Hard surfacing and abrasion protection materials are required for the scroll to reduce wear and therefore reduce the maintenance of the scroll wear.

Specification

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	2412	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	2200	4	1456	6-65	90	6000	5490*1510*1720
LW720*2160	720	2160	2200	3	1612	7-80	120	6000	5200*1600*1800

Packing & Delivery

1.Parking:standard wooden box
2.Spare parts :we supply some parts and accessories for free.
3.Electronic module:it is made up of electronic control cabinet.
4.Special tools:we supply a set special tools for free.
Company Profile

Liaoyang Shenzhou Machinery Equipment Co., Ltd.belongs to Shenzhou international Group. We are the professional manufacturer of Centrifuge & Separator, Liquid Filling Machine and packing machine. With many years producing experience, our factory have become leading manufacturer with professional technical team and Independent after-sale department.

Our international trade department can supply the whole project service. With many years development, we have known which factories have strong product with competitive price and we have built long-term and stable cooperation relationship with them. Our main area are the food and pharmacy project. Our successful project are coconut oil production line, liquid filling production line, packing production line and the tablet press production line, soft gelatin production line and so on. Our aim is providing you efficiently solution and superior after-service. We sincerely hope YOU are our next customers! Exported country: At present, our products have been exported to South Korea, India, Denmark, Russia, Georgia, Jordan, Bangladeshi, Tailand, Ethiopia, Finland, the United States, Canada, Australia, Spain, Japan, Colombia, Romania and so on more than 30 countries