Dewatering Tailings Gold Sludge Mining Thickener Decanter Centrifuge

• Customization: Available
• After-sales Service: Video Online Support
• Warranty: 1 Year
• Model NO.: LW/LWS series
• Type: Decanter 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: F-a-G NSK S-K-F Bearing
• Bowl Material: Stainless Steel 304/316L/Duplex Steel
• Separation: 3phase Separation
• Feature: High Efficiency
• Key Selling Points: Famous Brand PLC
• Motor: ABB
• Transport Package: According to The Model
• Specification: According to the model
• Trademark: Shenzhou
• Origin: China
• Package Size: 1500.00cm * 90.00cm * 130.00cm
• Package Gross Weight: 1000.000kg

Product Description

Product Description

Dewatering tailings Gold Sludge Mining Thickener Decanter Centrifuge With Save water and cost

Tailings are still frequently stored in large settling basins or sludge ponds They are a great burden on the environment. The process water bound by the tailings remains unused. With modern dewatering solutions, mining residues can be treated economically and the process water that they contain can be recovered. This saves both space and cost and is environmentally friendly.
 
In mining, the term tailings refers to fine-grained residues in the form of sludges. They are created during the processing of ores and minerals. The resulting waste water or overburden sludge is partly contaminated with chemicals. Tailings are a risk to the environment when stored in sludge ponds. If the dam breaks, this can have a significant impact on humans and the environment.

The storage of tailings in sludge ponds is increasingly being replaced by the storage of dewatered tailings. Mining companies store the dewatered sludge on the ground. This complies with statutory regulations in most countries. In hard-to-reach and confined storage regions or in earthquake-prone areas, it is particularly advantageous if the tailings have been dewatered. This minimizes environmental risks and space requirements. The cleaned process water can be recycled. Mine operation costs are significantly reduced.

Recycling of captured process water

Shenzhou decanter centrifuges use considerably less fresh water than belt presses or chamber filter presses. Our decanter centrifuges efficiently separate solid particles down to a size of 10 µm without using flocculants. If the operator uses flocculants, it is possible to separate even finer solids from the liquid (water). The recovered process water is then clean enough to be returned to the process. As a result, mine operators can significantly reduce fresh water requirements.

Filter presses, such as belt presses and chamber filter presses, rely on the use of filter cloths or filter belts to process the overburden sludge. During prolonged use, deposits accumulate in the filter cloths and filter belts. This reduces the degree of dewatering.

Decanter centrifuges operate continuously - often around the clock. They do not require filter cloths and filter belts. A constant dewatering rate is therefore assured.
 

• Recycling of the cleaned process water
• Constant dewatering capacity
• Operation around the clock is possible
• Demand for fresh water is significantly reduced

Installation in confined areas

Mines or mining operations are often located in confined and difficult to reach locations. The space taken up by the dewatering system is an important factor.  Given the same capacity and throughput, decanter centrifuges require considerably less space than other processing plants. Shenzhou decanter centrifuges can be installed almost anywhere - either as a fixed installation in a building or as a semi-mobile container unit. Our centrifuges only need a ground area of 5 x 10 meters.
A comparison
With a hydraulic capacity of 100 m³/h and a solids load of 25,000 kg, there are considerable differences in the weight of the plant:
Chamber filter press:   120 tons
Belt press:                     65 tons
centrifuge:      16 tons
 

Dewatering tailings Gold Sludge Mining Thickener Decanter Centrifuge With Save water and cost
Increased safety in tailings storage

Dewatering tailings makes it possible to store dry processed sludge. Dry storage means a lower risk. The amount of wastewater in the settling ponds and the pressure on the dams is reduced. This significantly reduces environmental risks.
Shenzhou decanter centrifuges for dewatering tailings are manufactured only in China. Thus we can ensure the optimal quality of our machines. The quality of the materials used in mining and quarrying plays an important role. Materials which come into contact with the sludge are attacked by the sludge's abrasive components. A high-quality wear protection is therefore a must.
Special materials, coatings and supplementary measures ensure that the service life of Shenzhou decanter centrifuges spans many years. Shenzhou centrifuges allow for the easy replacement of wear parts such as inlet bushings. This saves time and reduces the cost of maintenance and servicing throughout the entire life of the machine.

Decanter centrifuges are increasingly finding their way into modern mining processes due to their low cost, low fresh water usage and low space requirements as well as their contribution to environmental protection. 

Application:

Decanter centrifuge is widely used in industries as municipal and industrial waste water treatment, food processing,
pharmaceuticals and chemicals, etc.
1. Decanter centrifuge solid phase dehydration: dehydration effect for processing materials of solid particles.
2. Decanter centrifuge particle size classification: used in the removal of material of large diameter solid particles.
3. Decanter centrifuge liquid clarification: used for removing solid particles in the suspension liquid are clarified

Types Of Decanters

There are several types of decanter centrifuges currently utilized in the industry, the most widely recognized are vertical,
horizontal and conveyor centrifuges. The principle behind a decanter centrifuge is based on the theory of gravitational
separation. For example, if you fill a vessel with a mixture of mud and water, over time the weight of the mud will cause it to settle down at the base of the vessel. With the mud congealed at the bottom, the water will be forced upwards, creating a clear separation between the two.
Decanter Principles
A decanter centrifuge employs the same principles of gravitational force. However, unlike the glass mixture, the process is
expedited through the use of continuous rotation. In fact, rotation provides anywhere from 1000 to 4000 times the normal
gravitational force, reducing the time required for separation from hours to seconds.
Rotational Separation
The concept of rotational separation is similar to rides found at amusement parks and county fairgrounds. In these rides, placing yourself at an angle allows you to overcome the gravitational forces induced by rotation. Similarly, a decanter centrifuge is essentially a bowl tube that rotates at an extremely high speed. The bowl tube is equipped with an internal conveyor which moves in the same direction but at a different velocity.
How the Decanter Process Works:
* 1: The slurry is brought into the centrifuge through an intake pipe and onto a conveyor.
* 2: Utilizing an internal feed compartment, the conveyor moves the slurry through a nozzle into the bowl.
* 3: The bowl rotates at high speeds to induce centrifugal forces.
* 4: High speed rotation separates the solid material from the liquid in a matter of seconds.
* 5: The conveyor delivers the solid material upwards where it is discharged through a nozzle.
* 6: The solid material removed, the purified liquid is released from a separate output. The ability to purify a liquid makes
decanter centrifuges ideal for waste water treatment facilities. However, there are variety of industries for which such
centrifuges play an important role. Similar to other decanter equipment, centrifuges are simple to install and do not require a foundation to build upon. Their efficiency saves time and materials and is an essential component for many blue collar industries.

 Details

Reference standard                                                                                                                                                          

Technical parameter

Name	Unit	Parameter
Model	LWM760	LWM760*3040-N
Capacity	M3/h	10-160M3/H
Solid content	%	0.5~20
Design Rotation speed	r/min	2260Variable frequency speed regulation
Working rotation speed	r/min	2000Variable frequency speed regulation
Max Separation factor	G	2060/Variable frequency speed regulation
Drum diameter	Mm	760
Drum length	mm	3040
Slag outlet		Wear-resistant ceramic or hard alloy
Mud scraping position of spiral blade		Surface spray welding tungsten carbide protective coating
Drum		AISI304/316 stainless steel/2205/2507Duplex steel
Screw		AISI304/316 stainless steel/2205/2507Duplex steel
Hood		AISI304stainless steel
Feed pipe, Drainage and slag discharge pipe		AISI304stainless steel
Machine base		High Quality Carbon Steel
Screw Torque	Nm	25000
Differential speed	Rpm	45-80/Stepless adjustable
Differential adjustment accuracy value	Rpm	≤1
Noise	dB(A)	90
vibration	mm/S	7.1
Motor power	KW	185(380/3/50HZ)
explosion protection level		EEx e II T3
Rated voltage	V	600
Protection class	IP	56
Insulation class		F
Frequency conversion electric control cabinet	760	ZK1

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	2200	2800	4	2414	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	2000	4	1456	6-65	90	6000	5490-1510*1720
LW720*2160	720	2160	2000	3	1612	7-80	120	6000	5200*1600*1800
LW720*2880	720	2880	2000	4	1306	7-90	120	8000	3100*1600*1800
LW800*2400	800	2400	1800	3	1451	20-100	150	12000	5820*2000*1300
LW800*3200	800	3200	1800	4	1451	20-120	150	13000	7100*2000*1300

 If you want to know more please contact me:Cathy\

What is a Decanter Centrifuge?

Horizontal Bowl centrifuges are also known as decanter centrifuges, centrifugal decanters or simply decanter machines and are primarily used for separation of liquids from appreciable amounts of solids. Decanters can separate over
50% (v/v) solids from liquids on a continuous basis. Typical industrial decanter applications include Crude Oil Tank Bottoms; Waste Oil; Industrial Wastewater; Sludge Dewatering; Fish Meal; WVO/UVO De-Sludging; Paint Sludge; Rendering etc. etc.

How does it work? 

A decanter centrifuge separates solids from one or two liquid phases in one single continuous process. This is
done using centrifugal forces that can be well beyond 3000 times greater than gravity. When subject to such forces, the denser solid particles are pressed outwards against the rotating bowl wall, while the less dense liquid phase forms a concentric inner layer. Different dam plates are used to vary the depth of the liquid - the so-called pond - as required.

The sediment formed by the solid particles is continuously removed by the screw conveyor, which rotates at a different speed than the bowl. As a result, the solids are gradually "ploughed" out of the pond and up the conical "beach". The centrifugal force compacts the solids and expels the surplus liquid. The dried solids then discharge from the bowl. The clarified liquid phase or phases overflow the dam plates situated at the opposite end of the bowl.

Horizontal Decanter Centrifuges Centrifuge World offers a wide variety of horizontal continuous cleaning decanter centrifuges which provide effective, low-maintenance solutions to continuous liquid clarifying and / or solids dewatering with advanced process and mechanical performance features.

Decanter centrifuges are extremely versatile and capable of adapting to varying throughput and process and material types. The machines are easy to adjust, require little operator attention, are relatively quiet and feature a small footprint.
Biodiesel Centrifuges: Centrifuge World offers a wide range of manual clean and self-cleaning biodiesel centrifuges process capacities ranging from 1 to 30-gpm.

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.
Application
1. Industrial and municipal wastewater treatment
2. Oil&gas drilling mud/fluid control
3. Washing, separation and dewater of starch
4. Mycelium and zymtotic fluid separation for antibiotic
5. Dewatering of soybean and wheat protein
6. Dewatering of fish power and fish meat
7. Dewatering of vinasse
8. Clarification and extraction of fruit juice
9. Separation and purification for animal and vegetable oil
10. Production and purification of olive oil, palm oil, avcado oil
11. Separation and purification for coal tar
12. Grading of kaolin and grapgite
13. Grading and dewatering of dyestuff and pigment
14. Froth flotation for cleaned coal and dewatering of coal mud
15. Grading and dewatering of minerals working principle

Company Profile

Liaoyang Shenzhou Machinery Equipment Co., Ltd. belongs to SHENZHOU 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

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.

FAQ
1. 12 months guarantee period from machine arriving date.
2. Abundant spare parts in stock are available to provide.
3. Our technicians could be dispatched for overseas service.
4. 7*24 hours technical consultation.
5. Your workers could get trained both in our factory and yours.
6. Routine tracing till the machine work properly will be done timely.
7. We will remind you to do the normal maintenance.
8. Your suggestions or any comments & reflection would be treated in priority.
9. Marketing team will visit you during our visit in your country if you require.