Reliable SS304 Basket Centrifuge for Efficient Sludge Dewatering Process

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  • Reliable SS304 Basket Centrifuge for Efficient Sludge Dewatering Process
  • Reliable SS304 Basket Centrifuge for Efficient Sludge Dewatering Process
  • Reliable SS304 Basket Centrifuge for Efficient Sludge Dewatering Process
  • Reliable SS304 Basket Centrifuge for Efficient Sludge Dewatering Process
  • Reliable SS304 Basket Centrifuge for Efficient Sludge Dewatering Process
  • Reliable SS304 Basket Centrifuge for Efficient Sludge Dewatering Process
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Basic Info.

Model NO.
LW400
Type
Centrifuge
Separation Mode
Sedimentation Type
Operating Type
Continuous Type
Installation
Horizontal
Centrifuge Type
Horizontal Spiral Centrifuge
Pressure
Low Pressure
Condition
New
Material
SS304 or SS316 L
Motor
ABB
Inverter
ABB
Touch Screen
Siemens
Transport Package
Wooden Cases
Specification
2065*1050*800
Trademark
SHENZHOU
Origin
China
HS Code
8421192000
Production Capacity
500sets

Product Description

Reliable SS304 Basket Centrifuge for Efficient Sludge Dewatering Process
A decanter centrifuge is an innovative type of centrifuge that is widely recognized for its ability to
effectively separate solids from liquids within a dynamic mixture.. This process operates continuously, leveraging the incredible power of centrifugal force. The mixture is introduced into the centrifuge, where the solids are effortlessly extricated from the liquids through the centrifugal force created by the centrifuge's rapid spinning.

When tasked with tackling solid/liquid mixtures that boast high solids content, decanter centrifuges emerge as the superior choice. These robust solid-shell scroll centrifuges, commonly referred to as decanters, set themselves apart from chamber filter presses through their ability to function continuously. Through the application of powerful centrifugal forces, finely dispersed solid particles are efficiently separated from the suspension.

Decanter centrifuges find their importance across a multitude of global industries. These centrifuges are meticulously tailored to cater to specific applications, ranging from comprehensive sludge dewatering, precise classification, and meticulous wet classification to the methodical sorting of solids.

To achieve unparalleled results, solid bowl decanter centrifuges need to be expertly engineered to align with precise separation processes.

What is a Decanter centrifuge?

Reliable SS304 Basket Centrifuge for Efficient Sludge Dewatering Process
Reliable SS304 Basket Centrifuge for Efficient Sludge Dewatering Process
Reliable SS304 Basket Centrifuge for Efficient Sludge Dewatering Process

  • A decanter centrifuge is a sophisticated type of centrifuge designed for the separation of solids from liquids in a mixture. This continuous process employs centrifugal force to streamline the separation of the two components.
  • In operation, the mixture is introduced into the centrifuge, where the centrifugal force generated by the spinning centrifuge effectively separates solids from liquids.
  • Subsequently, the separated solids and liquids are expelled from the centrifuge through distinct outlets, ensuring a clear division of materials.
  • The versatility of decanter centrifuges is evident as they are employed in various industries such as chemical, pharmaceutical, food processing, and environmental engineering.
  • They are particularly beneficial for separating solids that are either too fine or possess too high a density to be effectively separated by conventional methods like sedimentation or filtration.
  • Additionally, decanter centrifuges excel at dewatering sludge and separating complex emulsions.
  • Renowned for their exceptional efficiency, minimal maintenance requirements, and capacity to process large volumes of material, they are highly sought after.
  • Working Principle of Decanter Centrifuges

    The decanter centrifuge operates fundamentally on principles of buoyancy-driven separation. Components with greater density naturally gravitate to the base of a mixture, while less dense counterparts ascend. By perpetually spinning, the decanter centrifuge significantly accelerates the settling velocity, generating g-forces between 1000 and 4000 G's. This remarkable acceleration drastically shortens the settling duration, enabling mixtures that once took hours to settle, now resolve within mere seconds. This cutting-edge separation method ensures swifter and more controllable results.

    A decanter can be envisioned as a sedimentation tank ingeniously wrapped around an axis. Heavier solid particles naturally sink to the base of the sedimentation tank by gravity, forming a sediment (solid phase) at the bottom. The centrifugal acceleration in the centrifuge further enhances this separation. Solid particles, being denser and heavier than the liquid, are propelled outward in the centrifuge's rotating bowl by centrifugal forces. Consequently, sediment accumulates on the inner wall of the centrifuge bowl. Compared to gravitational fields applying only 1 g, the centrifugal forces in a centrifuge approximate 3000 g, delivering a much faster and more efficient separation of solid particles from the liquid.
    Two-phase Decanter Centrifuge Parameters

    Model 
    (Diameter)mm
    Length mm
    Rotation speed(Rpm)
    separation factor
    capacity
    Main motor
    Vice motor
    Weight
    (Kg)
    LW250*1000
    250
    1000
    4800
    2722
    0.5-5
    7.5
    4
    950
    LW300*1200
    300
     
    1200
    4000
    2688
    1-8
    11
    7.5
    1350
    LW355*1160
    355
    1160
    3600
    2576
    2-8
    15
    7.5
    1400
    LW355*1460
    355
    1460
    3600
    2576
    2-10
    15
    7.5
    1800
    LW355*1460H
    355
    1460
    3600
    2576
    2-10
    15
    7.5
    2000
    LW420*1750
    420
    1750
    3200
    2406
    4-20
    30
    11
    3000
    LW450*1600
    450
    1600
    3200
    2578
    5-25
    30
    11
    3500
    LW450*1800
    450
    1800
    3200
    2578
    5-28
    37
    22
    3600
    LW450*2000
    450
    2000
    3000
    2266
    5-30
    37
    22
    3800
    LW500*1800
    500
    1800
    3000
    2517
    10-32
    45
    22
    4300
    LW500*2000
    500
    2000
    3000
    2517
    10-35
    45
    22
    4500
    LW550*1800
    550
    1800
    3000
    2769
    10-40
    45
    22
    4800
    LW550*2200
    550
    2200
    2800
    2412
    10-45
    45
    22
    5000
    LW650*1750
    650
    1750
    2000
    1454
    20-50
    90
    30
    6000
    LW650*2000
    650
    2000
    2000
    1454
    20-55
    90
    30
    6200
    LW720*2000
    720
    2000
    1800
    1450
    40-100
    110
    55
    10000

    Harnessing the advanced capabilities of a 3-phase decanter centrifuge, it's remarkably efficient to achieve a seamless separation of three distinct phases in just one operation. This process effectively segregates components like oil and water—elements that naturally resist combination due to their divergent densities—from the solid phase. Positioned between the oil layer and the solid layer, water accumulates at the center, facilitating its easy extraction. Post-separation, the liquids can be effortlessly siphoned from the decanter. Similar to 2-phase separation, the solids are elegantly transported via the scroll to the designated discharge points.

    Three-phase separation technology finds its hallmark applications in diverse sectors, including the production of high-quality edible oils such as olive oil, the efficient processing of oil sludge, and the innovative creation of biodiesel. These applications underscore the versatile potential of this technology across industries.

Parts of Decanter Centrifuges

Reliable SS304 Basket Centrifuge for Efficient Sludge Dewatering Process
Reliable SS304 Basket Centrifuge for Efficient Sludge Dewatering Process
Reliable SS304 Basket Centrifuge for Efficient Sludge Dewatering Process

Decanter centrifuges feature a series of pivotal components, each playing a crucial role in the effective separation of solids from liquids. These essential parts include:

  1. The bowl: At the heart of the centrifuge lies the bowl, a vital cylindrical component that spins along a horizontal axis. Within this dynamic chamber, the mixture awaiting separation is introduced via a feed pipe. The design ensures that separated solids and liquids are efficiently expelled through distinct outlets, streamlining the entire separation process.
  2. The scroll: Ingeniously engineered, the scroll is a helical screw situated inside the bowl. Driven by a motor, it operates at a marginally slower rate than the bowl. This clever design propels the solids towards the bowl's outer wall, where they are separated from the liquids through the power of centrifugal force, ensuring a precise and efficient process.
  3. The solids discharge port: Strategically placed on the bowl's outer wall, this port serves as the dedicated outlet for seamlessly discharging the separated solids, maintaining the efficiency of the process.
  4. The liquids discharge port: Located at the bottom of the bowl, this outlet is specifically designed for the efficient discharge of separated liquids, ensuring a smooth and uninterrupted flow.
  5. The drive system: Comprising the motor and an array of components, the drive system is the powerhouse behind the synchronized operation of the bowl and scroll, ensuring consistent and reliable performance.
  6. The control system: Featuring an array of sensors and intricate components, the control system meticulously oversees and regulates the centrifuge's operations, maintaining optimal performance and safety.
  7. The frame and support structure: Designed for stability, the frame and support structure provide robust support for the bowl and all other integral parts, ensuring the centrifuge operates smoothly and efficiently.
  8. The feed pipe: The feed pipe serves as the gateway for introducing the mixture into the centrifuge's bowl, playing a crucial role in the initial stages of the separation process.
  9. The feed pump: Ensuring a consistent flow, the feed pump introduces the mixture into the feed pipe at a steady rate, enabling the centrifuge to perform optimally.
  10. The feed control system: With its sophisticated sensors and components, the feed control system diligently monitors and adjusts the flow of the mixture into the centrifuge, ensuring precision and efficiency.

How the Decanter Process Works

  1. The innovative decanter process begins with the slurry being introduced into the centrifuge through a strategically designed intake pipe, leading it seamlessly onto a specialized conveyor for subsequent processing.
  2. Employing an advanced internal feed compartment, the conveyor expertly transfers the slurry through a precisely engineered nozzle into the spinning bowl.
  3. The bowl, rotating at exceptional speeds, generates powerful centrifugal forces that drive the separation process.
  4. Within seconds, the high-speed rotation efficiently segregates solid materials from the liquid, showcasing the process's remarkable rapidity and effectiveness.
  5. The expertly designed conveyor system elevates the solid material, guiding it towards a dedicated nozzle for efficient discharge.
  6. Once the solid material is removed, the centrifuge releases the purified liquid through a separate output, demonstrating its exceptional purification capabilities. This makes decanter centrifuges indispensable for waste water treatment facilities. Beyond this, a myriad of industries rely on decanter centrifuges for their pivotal role. These centrifuges are straightforward to install, negating the need for a pre-existing foundation. Their efficiency conserves time and materials, making them an invaluable asset across numerous blue-collar industries.Reliable SS304 Basket Centrifuge for Efficient Sludge Dewatering Process
  7. Characteristics of Decanter centrifuges process

    Unlock the power of separation with decanter centrifuges, an unrivaled method for efficiently separating solids from liquids. Key attributes that set this process apart include:

  8. Seamless Continuous Operation: Designed for relentless operation, decanter centrifuges ensure material is processed continuously, making them a perfect fit for high-volume tasks.
  9. Outstanding High Separation Efficiency: Achieve unparalleled separation prowess with decanter centrifuges, which expertly divide solids and liquids with remarkable efficiency, adeptly handling even the finest or densest solids that challenge other separation techniques.
  10. Customizable Adjustable Separation Parameters: Tailor the separation process to your specific needs with decanter centrifuges. Modify the bowl and scroll's speed and angle to optimize separation for diverse materials.
  11. Minimal Low Maintenance Needs: Experience the cost-effectiveness of decanter centrifuges, which demand minimal maintenance, offering a reliable solution for a variety of applications.
  12. Unmatched Versatility: Discover the broad applicability of decanter centrifuges, capable of separating a vast array of materials, from liquids of varying densities to complex suspensions and emulsions.
  13. Impressive Energy Efficiency: Cut energy costs with decanter centrifuges, which are generally more energy-efficient than traditional separation techniques like filtration and sedimentation, requiring significantly less power to operate.
  14. Sleek Compact Design: Embrace the streamlined nature of decanter centrifuges, whose compact build allows for seamless integration into existing process systems with ease.

Parameters and Influencing Factors of the Separation Process

1. Feed, Throughput, and Dwell Time

The material to be processed is introduced into the core of the scroll's infeed chamber, where it gains speed. Throughput directly impacts the residence time.

2. Acceleration Dynamics

Within the decanter bowl, the separating medium achieves peak velocity, propelling solids to settle on the bowl's interior curve, whether it be cylindrical or conical in shape.

3. Differential Velocity Control

A sophisticated gear mechanism in industrial decanter centrifuges creates a speed difference between the decanter bowl and the scroll, dictating the quantity of solids in the outflow.

4. Volumetric Filling / Weir Discs or Overflow Weir

Pond Depth / Weir Discs Mastery

In a decanter centrifuge, the clarified liquid advances to the bowl's cylindrical end, exiting through strategically placed perforations. These openings, equipped with adjustable weir discs/plates, allow for fine-tuning of the bowl's pond depth and filling volume.

Versatile Applications of Decanter Centrifuges

Decanter centrifuges are indispensable across numerous industries and applications, such as:

  1. Chemical Industry Innovations: In the chemical industry, decanter centrifuges play a pivotal role in the purification and dewatering of products like acids, alkalis, solvents, polymers, and resins, ensuring optimal quality and efficiency.
  2. Pharmaceutical Industry Excellence: Within the pharmaceutical sector, decanter centrifuges are crucial for separating and purifying drugs, excipients, intermediates, proteins, and enzymes, enhancing product integrity and performance.
  3. Food Processing Industry Advancements: In the realm of food processing, decanter centrifuges efficiently separate and purify food items and by-products, such as milk, juice, fruit puree, cheese, and yogurt, ensuring top-notch quality and freshness.
  4. Environmental engineering: Decanter centrifuges shine in the realm of environmental engineering as they are pivotal in the treatment and dewatering of sludge and myriad waste materials, showcasing their indispensable role in wastewater treatment plants. Additionally, they are crucial in the successful separation of oil and water during the meticulous operations of oil spill cleanups.
  5. Oil and gas industry: Within the oil and gas industry, decanter centrifuges are essential. They deftly separate oil, water, and solids during both drilling and production activities, and play a vital role in purifying and dewatering crude oil along with other petroleum products.
  6. Mining and mineral processing industry: In the mining and mineral processing sector, decanter centrifuges excel at separating valuable minerals and other solids from water and liquids, especially during the intricate processes of ore processing and beneficiation.
  7. Power generation industry: Decanter centrifuges find their place in the power generation industry by efficiently dewatering coal and various fuels, thus enhancing power generation operations.
  8. Pulp and paper industry: In the paper mills of the pulp and paper industry, decanter centrifuges serve the crucial function of dewatering pulp and paper sludge, ensuring seamless production processes.
  9. Other industries: Beyond conventional uses, decanter centrifuges are also deployed across industries such as automotive, aviation, and aerospace to achieve separation and purification tasks for a broad spectrum of materials.

Advantages of Decanter Centrifuges

  • The advantages of decanter centrifuges are numerous. They offer a streamlined and aesthetically pleasing appearance, combined with minimal to no odour issues, ensuring a pleasant working environment.
  • This device boasts ease of installation, rapid startup, and shutdown procedures, all while occupying less operational space than other competitive alternatives, making it an excellent choice for diverse settings.
  • The adaptability of the decanter centrifuge is unmatched, thanks to its adjustable bowl portion and cone angle, catering to a variety of application needs. Additionally, it is pre-programmable with multiple design curves for predicting sludge types, unlike the belt filter press, which cannot modify belt types accordingly. Its versatility allows it to efficiently perform multiple tasks like thickening and dewatering.
  • The remarkable throughput capacity of the machine surpasses that of smaller counterparts.
  • This efficiency translates to a reduced number of units required, optimizing performance.
  • With a limited number of significant variables and reliable feedback data, optimizing and operating the device is straightforward and user-friendly.
  • Compared to other processes, the decanter centrifuge has lower labour costs due to its minimal maintenance needs and reduced operator attention, making it a cost-effective choice.
  • The decanter centrifuge stands out with its enhanced process flexibility and superior performance over competing processes such as the belt filter process.

Disadvantages of Decanter Centrifuges

  • However, decanter centrifuges do have limitations. They are unable to separate biological materials, like cells and viruses, with minimal density differences. For these tasks, the tubular-bowl centrifuge is a commendable alternative.
  • The operation can be notably noisy and prone to vibrations, necessitating consideration of operational surroundings.
  • High G-forces characteristic of this device lead to significant energy consumption.
  • It carries substantial equipment costs, with the need for hard surfacing and abrasion-resistant materials for the scroll to avert wear and maintenance challenges.

What is the difference between centrifuge and decanter?

A centrifuge is a dynamic machine utilizing centrifugal force to separate solids from liquids or to isolate components of a mixture by density. In contrast, a decanter centrifuge is specifically engineered for the continuous separation of solids and liquids.

There are critical distinctions between a general centrifuge and a decanter centrifuge:

  1. Continuous operation: Decanter centrifuges are built for continuous operation, processing a steady flow of material. This is unlike other centrifuge types, such as batch centrifuges, which handle material in distinct batches.
  1. Scroll: Decanter centrifuges are ingeniously designed with a critical component known as a scroll—a helical screw beautifully mounted within the bowl. This screw rotates at a marginally slower pace than the bowl itself. The scroll's primary function is to seamlessly convey the solids towards the bowl's outer wall, where, through the formidable power of centrifugal force, they are efficiently separated from the liquids. While other centrifuge types may lack this innovative scroll or boast alternative conveyor systems, the scroll in decanter centrifuges is a game-changer in enhancing the separation process.
  2. Solids discharge: In the realm of decanter centrifuges, the solids discharge is masterfully executed through a dedicated port located on the bowl's outer wall. This strategic placement ensures the smooth and efficient ejection of the isolated solids. Other centrifuge varieties may employ different methodologies for solids discharge, yet the precision of the decanter centrifuge's design stands unparalleled.
  3. Applications: Decanter centrifuges are expertly crafted for the primary task of separating solids from liquids. However, other centrifuge types may serve a wider array of applications, such as intricately separating mixture components based on their densities or purifying liquids for diverse uses.
Overall, decanter centrifuges represent a specialized class of centrifuges, meticulously engineered for the continuous separation of solids from liquids. With distinct design features, they excel in specific applications, unlike other centrifuge types that may cater to varied purposes.
Reliable SS304 Basket Centrifuge for Efficient Sludge Dewatering Process
Reliable SS304 Basket Centrifuge for Efficient Sludge Dewatering Process
Reliable SS304 Basket Centrifuge for Efficient Sludge Dewatering Process

FAQ

What is a decanter centrifuge used for?

A decanter centrifuge is a sophisticated machine designed for the pivotal task of separating solids from liquids within a mixture. This dynamic process harnesses centrifugal force for precise separation, making it a staple across a diverse range of industries. From chemical and pharmaceutical sectors to food processing, environmental engineering, oil and gas, mining, power generation, and pulp and paper, decanter centrifuges stand as indispensable solutions for efficient separation and processing.
Some specific examples of what a decanter centrifuge may be used for include:
In the chemical industry, decanter centrifuges adeptly separate chemicals, including acids, alkalis, and solvents, ensuring purity and efficiency.
In the pharmaceutical realm, they proficiently separate pharmaceutical products such as drugs and excipients, enhancing production quality.
In the food processing sector, decanter centrifuges are vital for separating food products like milk and juice, maintaining quality and safety.
Within environmental engineering, decanter centrifuges are crucial for treating and dewatering sludge in wastewater treatment plants, promoting sustainability.
In the oil and gas industry, they excel at separating oil, water, and solids during drilling and production operations, optimizing resource extraction.
In the mining and mineral processing industry, decanter centrifuges efficiently separate minerals and other solids from water and liquids in ore processing.
For power generation operations, they play a key role in dewatering coal and other fuels, ensuring energy efficiency.
In the pulp and paper industry, decanter centrifuges are essential for dewatering pulp and paper sludge in paper mills, enhancing production processes.

Is a decanter a centrifuge?

Indeed, a decanter is a type of centrifuge. Centrifuges are remarkable machines that leverage centrifugal force to separate solids from liquids or components of a mixture based on their densities. A decanter centrifuge is a specialized variant meticulously crafted for continuous solid-liquid separation, standing out with its scroll mechanism and precision design.
Decanter centrifuges are renowned for their continuous operation. Characterized by the presence of a scroll—a helical screw that rotates at a slightly slower speed than the bowl—the design ensures the effective conveyance of solids to the bowl's outer wall. With a strategically placed solids discharge port, these centrifuges are pivotal across multiple industries, including chemical, pharmaceutical, food processing, environmental engineering, oil and gas, mining, power generation, and pulp and paper.

Why is it called a decanter?

The term "decanter" traditionally describes a container with a wide base and narrow neck, often used for wine. In decanter centrifuges, this term elegantly reflects the bowl's shape that mimics a wine decanter, with a cylindrical body, wide base, and narrow neck, spinning gracefully on a horizontal axis to achieve optimal separation.
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