2 Phase Decanter Centrifuge From Shenzhou China

• After-sales Service: 24 Hours on Line
• Warranty: 12monthes
• Type: Centrifuge
• Separation Mode: Sedimentation Type
• Operating Type: Continuous Type
• Installation: Horizontal
• Model NO.: LW
• Centrifuge Type: Horizontal Spiral Centrifuge
• Pressure: Low Pressure
• Condition: New
• Material: SS304 or SS316 L
• Machine Name: Lw Decanter Centrifuge for Sludge Dewatering
• Motor: ABB
• Touch Screen: Siemens
• Transport Package: Wooden Cases
• Specification: 2065*1050*800
• Trademark: Shenzhou
• Origin: Zhejiang
• HS Code: 8421192000
• Production Capacity: 500sets

Product Description

 

1. Available in 2-Phase and 3-Phase design configurations for separation of liquid/solids or liquid/liquid/solids

2. The dedicated electronic DPC (Decanter Process Controller) automatically manages the process cycle and safely controls the machine while maximizing the process potential of the SHENZHOU Decanter Centrifuge.

3. Replaceable solid discharge erosion resistant wear bushings are easily accessible given the unique rotating assembly cover design simplifying maintenance and reducing downtime

4. Adjustable Liquid discharge level plates are easily accessible and adjusted due to the unique rotating assembly cover design simplifying maintenance and reducing downtime

5. A unique sludge discharge cover scraper assembly prevents sludge from accumulating on the inside of the cover and blocking the solid discharge of the machine

6. Hydraulic and electric scroll back-drive transmission group options including an energy recovery system during machine operation which reduces the energy consumption of the SHENZHOU Decanter Centrifuge

7. Scroll features a sludge baffle disc which increases the working capacity of the  SHENZHOU Decanter and improves separation performance

8. Four (4) piece machine rotating assembly covers with hydraulic actuators simplifies the operator's job making inspecting and maintaining the specific sections of the rotating assembly easy and convenient

9. Rotating assembly group is easily extracted from above the machine simplifying maintenance and reducing removal time

10. Head-walls and bowl sections made from high strength forgings and centrifugal castings to improve resistance and homogeneity of bowl structure

11. Scroll features solid stainless steel fabrication to improve resistance, stiffness and longevity

12. Heavy-duty SHENZHOU Decanter base frame fabrication dampens vibrations and minimizes vibration transmission to the machine mounting structure.

13. 40 years of design and manufacturing experience in sludge separation processes assures customer satisfaction and meeting specific process and facility requirements

14. Optional remote monitoring and operational assistance reduces waiting time for resolution of possible problems

Characteristics of Two-phase Separation

Decanter Centrifuges allow separation between liquid and solid phases contained within a feed-slurry of industrial or municipal wastewater sludges or other industrial and/or food applications.

Inlet sludge, through feed pipe, will be conducted inside the bowl of the decanter and here separation of liquid phase from solid one will happen thanks to the action of centrifugal force. Liquid phase will be expelled from bowl front part thanks to specific level plates than can be adjusted on outlet diameter, while solid phase will be convoyed from the screw to exit openings on bowl rear part, where it will be then expelled. The feed slurry is introduced through an inlet feed tube into the scroll feed zone where it is accelerated and directed into the spinning bowl of the decanter centrifuge. The solids which have a higher specific gravity than the liquid phase will rapidly settle out on the inner wall of the centrifuge bowl due to the intense acceleration of centrifugal force over 3,000 x "gravity" leaving a clear inner ring liquid phase. The liquid phase flows in a helical channel between the scroll flights moving toward the large diameter end of the centrifuge bowl where the clarified liquid is expelled at a depth controlled by the adjustable liquid level discharge plates on the outlet diameter of the liquid end head-wall. The liquid phase or "centrate" then overflows into the liquid discharge cover and gravity drain from the machine. The compacted solid phase is discharged from the decanter centrifuge bowl by scroll which rotates at slightly different speed (differential speed) as controlled by the back-drive conveying the solids up the conical bowl section to the discharge ports. The dry solids are discharged into the solids discharge cover where a solids scrapper keeps the cover clear of solids cake build-up.

Characteristics of Three-phase Separation

Decanter Centrifuges allow separation between heavy liquid phase / light liquid phase and solid phases contained within a feed-slurry of industrial or municipal wastewater sludges or other industrial and/or food applications.The feed slurry is introduced through an inlet feed tube into the scroll feed zone where it is accelerated and directed into the spinning bowl of the decanter centrifuge. The solids which have a higher specific gravity than the liquid phase will rapidly settle out on the inner wall of the centrifuge bowl due to the intense acceleration of centrifugal force over 3,000 x "gravity" leaving a clear inner ring liquid phase. The liquid phase flows in a helical channel between the scroll flights moving toward the large diameter end of the centrifuge bowl where the clarified heavy liquid phase is expelled at a depth controlled by the adjustable liquid level discharge plates on the outlet diameter of the liquid end head-wall. The Light liquid phase is expelled separately from bowl through adjustable depth nozzles. Both liquid "centrate" phases then overflows into their respective liquid discharge covers and gravity drain from the machine. The compacted solid phase is discharged from the decanter centrifuge bowl by scroll which rotates at slightly different speed (differential speed) as controlled by the back-drive conveying the solids up the conical bowl section to the discharge ports. The dry solids are discharged into the solids discharge cover where a solids scrapper keeps the cover clear of solids cake build-up.

 

Why Purchase Decanter Centrifuge?

• The centrifuge is highly automated. After startup, which is automated, the operator can walk away. Usually, an operator is only required to periodically check on the operation of the system to insure proper continued operation.

• The shutdown sequence of the centrifuge is also completely automated - just push a button. The belt press will usually require one half hour of wash down, which is time consuming and messy.

• The belt press takes up more space - the centrifuge takes up considerably less space.

• The centrifuge is totally enclosed. This eliminates odor and mess in the plant.

• Operators can be exposed to aerosols in the air due to high pressure wash of the belt. This does not occur with a centrifuge.

• The belt press uses a continuous flow of wash-water, which adds loading to the plant. The centrifuge does not.

• The centrifuge will normally provide a cake with 2% or higher cake solids than a belt press. The actual difference will depend upon the design and quality of the belt press. A lower cost belt press will produce even lower solids. This adds to hauling and disposal cost. Over 5 or 10 years, this difference can easily pay for the centrifuge.

• A belt press is lower in initial cost than a centrifuge. However, when installation costs are included, system cost will tend to equalize.

• The price for ancillary equipment such as feed pump, polymer system, conveyors, etc. will be the same for a belt press or a centrifuge. Therefore, when the entire system, including installation, is considered, the cost differential is minimal.

• A belt press requires a special foundation. The floor under the press must be sloped to a drain with curbing all around. This adds to the installation cost.

• Why buy a skid mounted or containerized  Decanter Centrifuge system? A skid mounted or containerized  Decanter Centrifuge system offers additional advantages:

  • The skid mounted system has a very low installation cost since the entire equipment package is delivered completely pre-mounted, pre-piped and pre-wired
  • A skid mounted or containerized Decanter Centrifuge system does not require a special foundation - only requires a flat floor.
  • All components are tested in the factory before shipment to insure proper operation. This greatly reduces startup time and cost.

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