Decanter Centrifuge for Water Treatment Plant

• Customization: Available
• After-sales Service: Video Online Support
• Warranty: 1 Year
• Model NO.: LW series
• Certification: CE
• Power Source: Electric
• Operation Pressure: Atmospheric Pressure
• Material: Stainless Steel
• Discharge Type: Self-Cleaning
• 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: 130.00cm * 90.00cm * 160.00cm
• Package Gross Weight: 1050.000kg

Product Description

Decanter Centrifuge in the water treatment plant

Industrial Water Treatment Process
A lot of problems have emerged with the fast expansion and growth of industrial development and urbanization. Seas, forests, fresh water sources are negatively impacted by industrial urbanization and industrialization. Such resources which are needed for the habitat are becoming polluted due to environmental factors as a result of industrialization.

Population increases rapidly in such areas as industrial plants are being established. Accordingly, pollution load of the area also increases. Pollution load needs to be minimized and discharged for efficient and long-term utilization of natural resources.

Streams and lakes are the most important fresh water bodies throughout the world. Insufficient treatment of industrial waste waters causes pollution of fresh water bodies. Streams, lakes and coasts are directly or consequently affected by such pollution. Waste waters discharged to streams without being treated are carried to the coasts of lakes by the stream.

Waste waters produced by industrial plants through various channels as a result of processing raw materials and manufacture are referred to as "industrial waste water". Industrial waste waters may also contain domestic waste waters produced by bathrooms, accommodation and catering facilities of the employees if not separated at the plant.

Industrial waste waters vary depending on the type of industry and process. Certain industrial waste waters may have high organic content, easily biodegradable, high inorganic content or of toxic character. In other words, total suspended solid (TSS), biological oxygen demand (BOD) and Chemical Oxygen Demand (COD) can vary within an extensive range.

Industrial waste water characterization test shall always be performed before deciding on the treatment processes and treatment processes and methods suitable for this characteristic structure shall be determined.


Process Operation
SHENZHOU decanters or screw presses can be used for efficient dewatering of industrial sludge. Such as; Vegetable Oil Production, Refinery/Soapstock, Paper Production, Integrated Meat and Slaughterhouse Premises, Milk Production, Fish Products Production, Forestry Products Production, Fruit Juice and Carbonated Beverage Production, Distillation, Leather Production, Textile Products, Sugar Factories, Mineral Production, Potato and Starch Production, Metal Production, Oil Processing, Coal Washing waste waters, Fermentation Products, Desulphurization, Paint Production , PET Products Recycling, Confectionary Production Plants.

Application fields
1. Food
A Flesh processing,aquatic products processing and edibleprotein recovery;
B Extract plant protein from soybean,oily seeds andleguminous 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; Clarification of grape juice and grape wine.
2. Environmental protection
Drilling mud,industrial efluentwaste water of municipal works, fertilizer,organic waste water,paint sludge ,plastic particles,gravel washing water,waste water in steel-making,fluegas desulfurization,sewage sludge treatment of waterworks.
3. Petroleum and chemical industry
A Processing of kaolin and calcium carbonate,production ofbentonite and titanium dioxide;
B Exploration of petroleum oil,natural gas,crude oil refiningand 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 ,ilicaproducts and fertilizers;
F Treatment of spent wash and molasses fermentationresidues;
G Extraction of starch from wheat,corn,cassava and potato;
H Waste liquid recovery and recycling from above industries.

Decanter centrifuges process characteristics
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 wil 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.

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.