Shenzhou Machinery - Fabricante profesional de máquinas centrífugas industriales y proveedor de separadores centrífugos en China

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  • WHAT IS DECANTER CENTRIFUGE?

    Introduction:

    A decanter centrifuge is a kind of continuous operation sedimentation centrifuge.It mainly consists of a cylindrical conical drum, a screw conveyor, a drive system, a feeding system, and a discharge system. The drum rotates at a high speed, and the screw conveyor rotates at a slightly different speed inside the drum.


    Working Principle:

    The material to be separated is fed into the drum through the feeding system. Under the action of centrifugal force, the solid particles in the material are thrown to the inner wall of the drum and form a sediment layer. The screw conveyor continuously transports the sediment to the conical end of the drum for discharge. The liquid phase, on the other hand, flows out from the other end of the drum, thus achieving the separation of solid and liquid phases.

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  • APPLICATIONS
    Wastewater treatment: It is widely used in municipal and industrial wastewater treatment plants to separate suspended solids from the wastewater, helping to purify the water and meet the discharge standards.

    Food processing: In the food industry, it is used for separating and dewatering various food materials, such as separating starch from potato slurry, or dewatering fruits and vegetables.

    Pharmaceutical industry: It is used in the production process of drugs to separate and purify solid liquid mixtures, such as separating crystals from the reaction solution.

    Mining and mineral processing: In the mining industry, it is used to separate and recover valuable minerals from the ore slurry, or to dewater the tailings.


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  • ADVANTAGES​​​​​​​

    Shenzhou Machinery - Professional Industrial Centrifuge Machine Manufacturer and Centrifugal Separators Supplier in China.
    We specialize in manufacturing high-performance industrial centrifuge machine and all kinds of centrifugal separation equipment have over 50 years of industry experience. We provide professional one-stop customized centrifuge separator services. Widely used in chemical industry, medicine, biology, food, environmental protection and other fields. We provides engineered 3D designs by 3D printer to meet your ideas. We have always followed the standardization rules for a rigorous production process, saving time and cost for both parties and bringing maximum benefits to you.
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    • High separation efficiency:

      It can continuously separate large volume materials with high separation accuracy.

    • Wide range of applications:

      It can handle various types of materials, including high viscosity and fine particle materials.

    • Easy to operate and maintain:

      With an automatic control system, it can operate stably for a long time, and the maintenance is relatively convenient.

  • SEPARATION PRINCIPLE
    Sedimentation horizontal decanter centrifuge: It mainly relies on the action of the centrifugal force field to make the solid particles in the suspension settle on the wall of the drum, thus achieving solid  liquid separation. It is commonly used for the separation of suspensions in fields such as sewage treatment, chemical engineering, and pharmaceuticals, for example, the dehydration treatment of sludge in urban sewage treatment plants.

    Filtration horizontal decanter centrifuge: There is a screen on the drum wall. Under the action of centrifugal force, the liquid is discharged through the screen, and the solid particles are retained on the screen, thereby realizing solid  liquid separation. It is suitable for the separation of suspensions with relatively coarse solid  phase particle sizes and high concentrations. For instance, it is used for the dehydration of concentrates in some mining concentrators.
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  • INNOVATION TECHNOLOGY
    Efficient Liquid Discharge: The centripetal pump structure can generate a powerful suction force, enabling the rapid discharge of the separated liquid from the drum. This helps to improve the separation efficiency of the centrifuge, shorten the time of a single separation cycle, and thus enhance the overall processing capacity.

    Reduction of Turbulence: The centripetal pump structure can make the liquid flow out more smoothly during the discharging process, reducing the turbulence and disturbance of the liquid. This is beneficial for improving the separation effect, as turbulence may cause the settled solid particles to resuspend, affecting the purity of solid-liquid separation. When processing materials with high requirements for separation precision, such as the separation of biological agents in the pharmaceutical industry, it can effectively ensure the separation quality.

    Wear Reduction: This structure can reduce the erosion and wear of the liquid on components such as the drum and the screw conveyor. Since the liquid is discharged more smoothly, it reduces the direct impact of high-speed liquid on the inner wall of the equipment, thereby prolonging the service life of the equipment, reducing maintenance costs, and minimizing downtime.
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  • FULL RANGE OF MODELS TO MEET DIVERSE NEEDS
    Phase decanter centrifuge：Three-phase decanter centrifuge: It is a kind of horizontal decanter centrifuge equipment used to achieve the separation of liquid-liquid-solid three phases. In this centrifuge, through the centrifugal force field generated by high-speed rotation, substances in three different phases (two immiscible liquids and one solid) are separated according to the density differences.

    One liquid phase (such as the light liquid phase with a lower density) will gather in the inner layer of the drum, and the other liquid phase (the heavy liquid phase with a higher density) will be in the outer layer of the drum, while the solid particles will settle on the inner wall of the drum. Then, through the corresponding discharge devices, the three-phase substances are respectively discharged from the centrifuge to achieve the purpose of separation.

    Three-phase decanter centrifuges are widely used in the process operations involving liquid-liquid-solid three-phase separation in industries such as petrochemicals, food processing, and sewage treatment.
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  • Phase decanter centrifuge：Two-phase decanter centrifuge: It is a kind of horizontal decanter centrifuge equipment mainly used to achieve the separation of solid-liquid two phases or two immiscible liquid-liquid two phases. When carrying out solid-liquid separation, through the powerful centrifugal force field generated by the high-speed rotation of the centrifuge, the solid particles settle on the inner wall of the drum, while the liquid is distributed inside the drum.

    Then, the screw conveyor is used to push the settled solids to one end of the drum for discharge, and at the same time, the liquid flows out through a specific liquid discharge port, thus completing the solid-liquid separation. When carrying out liquid-liquid two-phase separation, two immiscible liquids with different densities are stratified according to the density difference under the action of centrifugal force. The liquid with a higher density is close to the outer wall of the drum, and the liquid with a lower density is close to the center of the drum. Then, they are respectively discharged through the corresponding liquid discharge ports to achieve liquid-liquid separation.

    Two-phase decanter centrifuges are widely used in many fields such as chemical industry, pharmaceuticals, environmental protection, and food industry for the separation of various suspensions and emulsions.

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MULTI-INDUSTRY SOLUTIONS VERIFIED IN 70+ COUNTRIES AROUND THE WORLD
  • Environmental protection field
    Environmental protection field
    Municipal sewage sludge treatment, industrial wastewater (including paint sludge, steel wastewater).
  • Petrochemicals
    Petrochemicals
    Crude oil deslagging, lubricant additive recovery, organic intermediate separation.
  • Pharmaceutical and biological
    Pharmaceutical and biological
    Liquid clarification, yeast recovery, and fermentation residue treatment.
  • Food processing
    Food processing
    Fish paste dehydration, plant protein extraction, juice clarification (such as grape juice, palm oil).


Model Drum diameter (mm) Maximum speed (rpm) Processing capacity (m³/h) Power (kW) Application Scenario
3 Phase decanter centrifuge  550 2800 640 55 Food processing, chemical industry
2 phase decanter centrifuge 800 1800 20120 150 Environmental sludge, oil
  • Material Characteristics
    Solid-Liquid Ratio: If the solid content is high, a centrifuge with a large processing capacity and strong slag-discharging ability should be selected; if the liquid content is high, there will be higher requirements for the separation efficiency and liquid clarity.

    Particle Size: For materials with larger particles, the separation is relatively easy; while for materials with fine particles, the centrifuge needs to have a higher separation precision.

    Material Viscosity: Materials with high viscosity will increase the difficulty of separation, and a centrifuge with strong anti-adhesion performance and stirring ability should be selected.

    Corrosiveness: If the material is corrosive, the material of the centrifuge needs to have corresponding corrosion resistance, such as stainless steel, special alloys, etc.

    Processing Scale
    According to the production scale and processing capacity requirements of the enterprise, select the appropriate centrifuge model. Enterprises with a large processing capacity need to select equipment with strong processing capacity and a long continuous operation time.Shenzhou machinery is a good choice for your !
  • Pay Attention to Performance Indicators
    Separation Factor: The separation factor is an important indicator for measuring the separation ability of the centrifuge. The higher the separation factor, the better the separation effect. For materials that are difficult to separate, a centrifuge with a higher separation factor should be selected.

    Drum Diameter and Length: Generally speaking, the larger the drum diameter and the longer the length, the better the processing capacity and separation effect of the centrifuge. However, it will also increase the floor space and energy consumption of the equipment.

    Differential Speed Control: The differential speed refers to the rotational speed difference between the screw conveyor and the drum. The size of the differential speed directly affects the slag-discharging effect and separation efficiency. An excellent centrifuge should be equipped with an accurate differential speed control system that can be flexibly adjusted according to the material characteristics and processing requirements.

    Manufacturing Process: Check the welding quality, machining precision, assembly process, etc. of the equipment to ensure that there are no obvious defects or flaws.

    Brand and Reputation: Choosing a well-known brand and a centrifuge manufacturer with a good reputation can reduce the purchase risk. You can understand the manufacturer's reputation and product quality by referring to industry materials, consulting peers, and checking user reviews.
    • I. Demand Communication Stage
      Customer Consultation: Customers contact the manufacturer via phone, email, official website messages, etc., expressing their customization requirements for horizontal decanter centrifuges, including preliminary information such as the application field (e.g., chemical industry, food industry, environmental protection, etc.), the characteristics of the processed materials (such as solid-liquid ratio, particle size, viscosity, corrosiveness, etc.), and the processing scale.
    • I. Demand Communication Stage
    • II. Scheme Design Stage
      1. Technical Evaluation: Based on the demand information provided by the customer and the results of the on-site inspection, the technical team of the manufacturer evaluates and calculates the design parameters of the horizontal decanter centrifuge, such as the separation factor, drum diameter and length, differential speed control range, etc., and determines a feasible technical scheme.

      2. Scheme Design: According to the results of the technical evaluation, the designers carry out the detailed design of the horizontal decanter centrifuge, including the design of the mechanical structure (such as the drum, screw conveyor, housing, etc.), the design of the control system (such as the degree of automation, operation interface, etc.), the selection of materials (determined according to factors such as the corrosiveness of the materials), etc., and draw relevant drawings.

      3. Scheme Review: After the design scheme is completed, it is jointly reviewed by the internal technical, quality, production and other departments of the manufacturer to ensure the rationality, feasibility and safety of the scheme. Submit the reviewed and approved design scheme to the customer,Make adjustments according to the customer's opinions until the customer confirms the scheme.
    • II. Scheme Design Stage
    • III. Production and Manufacturing Stage
      1. Raw Material Procurement: According to the confirmed design scheme, the procurement department purchases the required raw materials and components as required, ensuring that their quality meets the standards, and inspects and accepts the purchased raw materials and components.

      2. Component Processing: The production department processes and manufactures the components according to the design drawings, including the processing of key components such as the drum, screw conveyor, frame, etc., strictly controlling the processing accuracy and quality.

      3. Equipment Assembly: Transport the processed components to the assembly workshop, and assemble the equipment according to the assembly process requirements, ensuring that the installation positions of all components are accurate and the connections are firm. Necessary debugging and testing, such as dynamic balance testing and sealing performance testing, are also carried out.

      4. Quality Inspection: After the equipment is assembled, the quality inspection department conducts a comprehensive quality inspection, including appearance inspection, dimension measurement, performance testing, etc.,
    • III. Production and Manufacturing Stage
    • IV. Delivery and Acceptance Stage
      1. Packaging and Transportation: Package the qualified horizontal decanter centrifuge, use appropriate packaging materials and methods to ensure that the equipment is not damaged during transportation.

      2. Installation and Debugging: We dispatches technical personnel to the customer's site for the installation and debugging of the equipment, operating according to the installation instructions and relevant specifications.

      3. Operation Training: After the installation and debugging of the equipment are completed, the technical personnel train the customer's operators, including the operation method of the equipment, daily maintenance, troubleshooting of common faults, etc.

      4. Acceptance and Delivery: The customer conducts acceptance of the equipment according to the acceptance standards stipulated in the contract, checking whether the performance indicators, appearance quality, technical documents, etc. of the equipment meet the requirements.
    • IV. Delivery and Acceptance Stage
    • V. After-sales Service Stage
      1. Regular Follow-up: The manufacturer regularly follows up with the customer, and promptly solves the problems encountered by the customer during the use process.
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      2. Maintenance and Repair: Provide the customer with equipment maintenance and repair services, including regular inspections, fault repair, component replacement, etc. When the equipment fails, the manufacturer responds in a timely manner and dispatches professional technical personnel to the site for repair to ensure that the equipment can be restored to normal operation as soon as possible.

      3. Technical Support: Continuously provide the customer with technical support, such as equipment upgrading and transformation, process optimization, etc. According to the customer's needs and technological development, provide the customer with new solutions to improve the performance and production efficiency of the equipment.

      4. Spare Parts Supply: Ensure the timely supply of equipment spare parts, reducing the equipment downtime.
    • V. After-sales Service Stage
  • SHENZHOU MACHINERY？
    Title: 50 years of technology accumulation, the world's trusted centrifuge manufacturer

    One-stop service: from 3D design, production to installation and lifelong after-sales support.

    Quality control: through CAD/3D design verification, three-stage quality inspection (raw materials, processing, finished products).

    Environmental compliance: 100% of raw materials comply with environmental certification, and equipment passes CE/ISO standards.

    Global layout: Exports to 70+ countries, covering markets such as the United States, Russia, and Brazil.

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