3 Phase Decanter Centrifuge for Petroleum Oil Sludge Centrifuge Separator

• Warranty: 1 Year
• Type: Centrifuge
• Object: Cosmetic
• Separation Mode: Sedimentation Type
• Operating Type: Continuous Type
• Installation: Horizontal
• Condition: New
• Automatic Degree: Fully Automatic Continuous Centrifuge Separator
• Control System: Double Frequency Conversion
• Dimension(L*W*H): 2730*1600*1080mm/3130*1600*1080mm
• Material: Carbon Steel/ Stainless Steel 304/316
• Weight: 1400
• Certification: ISO9001 CE
• Warranty of Core Components: 1 Year
• Function: Solid-Liquid Two Phases Separation
• Core Components: PLC, Bearing, Gearbox, Motor
• Capacity: 2~10t
• Voltage: 220V/Customerized
• Motor Power: ABB
• Application: Liquid Solid or Liquid-Liquid-Solid Separation
• Power: 15kw
• Diameter: 355mm
• Trademark: Shenzhou
• Origin: China
• Production Capacity: 300 Set/Sets Per Year

Product Description

FEATURES AT A GLANCE

LWS355 Decanter Centrifuge

 

LWS355 Decanter Centrifuge

 

LWS355 Decanter Centrifuge

LWS355 Decanter Centrifuge

LWS355 Decanter Centrifuge

 

Product Introduce

 

 

The separation process in a decanter centrifuge relies on a few process characteristics such as centrifugal force or G-force, sedimentation rate and separating factor, differential speed between the conveyor and bowl, and clarity of the liquid discharge.Decanter centrifuges require a centrifugal force for the separation of the solids from the liquid. This characteristic is dependent on the radius of the centrifuge and its angular rotational speed. A decanter centrifuge applies a force equivalent to several thousand G's, which reduces the settling time of the particles. It is also favored to maintain a large G-force, which will result in an improved separation.

 

 

The rate at which sedimentation occurs is an important characteristic of the decanter centrifuge separation process. The sedimentation rate is influenced by the particle size, the shapes of the particles, their differential densities and the viscosity between the particles and the liquid. This process characteristic can be improved by utilizing flocculating agents. The sedimentation rate is also dependent on the separating factor of the decanter centrifuge, which is related to the centrifugal force.

 

 

The exterior bowl and the scroll conveyor rotate at different high speeds. This differential speed between the two is accountable for the sedimentation throughout the decanter centrifuge cylinder. A high differential speed results in a smaller residence time of the cake settlement, so it is necessary to keep the cake thickness to a minimum to avoid impairing the discharge quality.

 

 

Keeping the cake thickness to a minimum also aids in the improvement of the cake dewatering process. For this reason, it is necessary to obtain an optimal differential speed to balance the cake thickness and quality.

 

 

The characteristic above all affects the clarity of the liquid output which is dependent on the volumetric throughout rate, where a higher flow rate will result in a poor liquid clarity. Another characteristic that influences the clarity of the liquid output is the differential speed. A low differential speed results in a better clarity, therefore, aiding in the separation process. The G-Force also plays a role in the clarity of the liquid discharge. Higher G-force results in an increase in the separation of the solid particles from the liquid and yields a better clarity.

 

 

Advantage:

1. LARGE PROCESSING CAPACITY OF ONE EQUIPMENT: When the solid particle size is 0.007mm, the treatment capacity can reach 40m3/ h, and the parts material is made of high-quality corrosion stainless steel.

2.COMPACT STRUCTURE AND SMALL SPACE-OCCUPANCY : The design is suspension type, low center of gravity type and mobile type, can be combined accoring to user requirements.

 

3. EQUIPPED WITH MULTIPLE SAGETY PROTECTION DEVICES: including over-vibratation protection, bearing temperature detection, screw conveyor torque protection rotating and differential speed detection, as well as nitrogen-filled explosion-proof protection, motr overload and over heat protection. Equipment control system have ordinary type and flameproof type.

4. JG type rubber shock absorber requires no anchor bolts.

 

 

 

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.

PRODUCT CONFIGURATION

Drum

Screw

PLC Control

PRODUCT SPECIFICATIONS

Model	Drum dia.(mm)	Max.Speed (r/min)	L/D Ratio	Main motor power (kw)	Capacity(m3/h)	Weight (kg)	Dimension (L*W*H)(mm)
LW250*1000	250	5000	4	7.5	0.5-5	950	2120*1250*680
LW300*900	300	4200	3	11	1-6	1160	2150*1300*900
LW355*1160	355	3600	3.3	15	2-8	1400	2470*1350*830
LW400*860	400	3200	2.2	15	1	1600	2270*1480*980
LW450*1350	450	3000	3	30	2	2000	2870*1700*1130
LW450*1800	450	2800	4	37	3	2500	3320*1700*1130
LW500*2000	500	2500	4	45	5-35	4000	3520*1800*1170
LW500*1250	500	2800	2.5	37	5-25	2500	2770*1800*1170
LW500*1500	500	2800	3	37	5-30	2680	3020*1800*1170
LW600*1800	600	2400	3	55	6-40	4000	4490*1425*1690
LW650*1950	650	2200	3	75	6-45	5000	4840*1510*1720
LW720*2160	720	2000	3	120	7-80	6000	5200*1600*1800
LW800*2400	800	1800	3	150	20-100	12000	5820*2000*1300

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COMPANY PROFILE

About Shenzhou Company

Shenzhou Centrifuge has been developing and manufacturing centrifuges for nearly 80 years, and is one of the Chinese leading manufacturer. Shenzhou Centrifuge has more experience and expertise than any other separator manufacturer when it comes to applying and using decanter centrifuge for the purpose of continuous separation.

 

Company Advantage

* 80 years of technical experience
* Professional technical team
* The plant covers an area of 30,000 m²
* Exported to more than 70 countries
* High performance / High value
* ISO9001CE certification and inspection reports