Method of increasing the power of decanter centrifuge

In response to this problem, we should first trek the decanter centrifuge drum speed, of course, within the safety tolerance range, and the material is non-corrosive or less corrosive. Then trudge the filtration area inside the centrifuge drum. The method is to increase the lining mesh, so that there is a small gap between the filter bag and the centrifuge drum, and the trekking permeability; Increase the section area, such as adding V-shaped filter baffles.

In the process of using the decanter centrifuge, the problem of slow dewatering power of the decanter centrifuge is encountered, which is manifested as the increase of solid image material in the drum, the extension of dewatering time of the decanter centrifuge, and the appearance of non-drying. This phenomenon belongs to the general phenomenon.

It can be a few times dehydration methods, reducing the amount of centrifuge dehydration filter material per time, more, less discharging method. If the material is sticky, wash it within the limits allowed by the process. Trudging solid phase material particle size, in the case of unchanged process, if you want to trek fear rate, you can consider increasing, such as adding flocculant.

Decanter centrifuge is one of the widely adaptable solid-liquid separation equipment on the market, mainly used for solid-liquid separation. When selecting the equipment, it depends on the specific condition of the material, the separation or not of the decanter centrifuge and the separation function are determined by the dryness of the solid particles in the suspension, such as salt and sugar and other water-soluble items, which need to be separated after using flocculant.

What are the factors that affect the use of decanter centrifuge?

Kosun_decanter centrifuge is mainly composed of a drum, screw, differential system, liquid level baffle, drive system, and control system. It is a special equipment for solid-liquid separation designed according to the characteristics of petroleum drilling fluid, which can complete various processes such as feeding, centrifugal sedimentation, and unloading at full speed. It is mainly used for recovering barite, removing fine solids, reducing the solid content of drilling fluid, controlling the density and viscosity of drilling fluid, ensuring the performance of drilling fluid, and playing an important role in rapid drilling. The LW series centrifuge separates the drilling suspension by the principle of centrifugal sedimentation. The suspension enters the rotary drum from the feed pipe through the liquid outlet hole in the screw pusher. Under the action of centrifugal force, the solid particles are pushed to the inner wall of the rotary drum and discharged through the slag discharge port at the small end of the rotary drum through the blade on the screw pusher. This is repeated to achieve the purpose of continuous separation. Sedimentation centrifuge belongs to the category of horizontal spiral centrifuge, full name horizontal spiral sedimentation centrifuge.
Factors affecting the use effect of decanter centrifuge

The use effect of decanter centrifuge, the impact of its mechanical part is divided into adjustable factors and non-adjustable factors, now respectively explained, first understand its principle of action, you can effectively control it in use

1, non-adjustable mechanical factors are drum diameter and effective length. Half cone Angle of the drum. Pitch. The following categories are described: drum diameter and effective length: The larger the drum diameter and the longer the effective length, the larger the effective settling area and the greater the processing capacity. Half cone Angle: When the sediment settling inside of the centrifuge drum is pushed to the discharge port along the end of the drum cone, it is subjected to the downward sliding reflux force due to the action of centrifugal force. Drum half cone Angle: a more important parameter in centrifuge design. In terms of clarifying effect, the cone Angle should be as large as possible. In terms of slag delivery and dehydration effect, the cone Angle is required to be as small as possible. Pitch: that is, the distance between two adjacent spiral blades, is a very important structural parameter, which directly affects the success or failure of slag transport. When the spiral diameter is fixed, the larger the pitch and the larger the spiral lift Angle, the greater the chance of the material being blocked between the spiral blades. At the same time, the large pitch will reduce the number of turns of the spiral blade, resulting in uneven material distribution at the end of the drum cone, resulting in increased vibration of the machine. Therefore, for difficult-to-separate materials such as activated sludge, slag delivery is more difficult, and the pitch should be smaller. Spiral type: According to the liquid and solid relative movement in the drum is divided into countercurrent and forward flow. The feeding chamber of the countercurrent centrifuge is in the middle of the spiral, that is, near the boundary between the dry zone and the settling zone, to ensure that the liquid phase has enough settling distance, but the solid phase can only stay for the time required to pass through the cone, so a higher centrifugal force is required; The material entering the drum from here will cause the settled solid particles in this area to float again due to disturbance, and will also produce turbulence and additional eddy currents, which will reduce the separation effect.
2, adjustable mechanical factors are drum speed, difference speed (difference ratio), liquid ring layer thickness, and process factors, the following categories are described: drum speed: drum speed adjustment is usually achieved by variable frequency motor or hydraulic motor. The higher the rotational speed, the greater the centrifugal force, which is helpful to improve the solid content of mud cake. However, excessive rotation speed will destroy the sludge flocculation, but reduce the dehydration effect. At the same time, the higher speed has high requirements for materials, the wear of the machine increases, and the power consumption, vibration, and level will also increase accordingly. Difference velocity (difference ratio), the difference velocity directly affects the slag discharge capacity, mud biscuit degree, and filtrate quality to improve the difference velocity, which is conducive to improving the slag discharge capacity, but the sludge dehydration time will be shortened, the water content of the mud cake after dehydration is large, and too large difference velocity will increase the disturbance of the spiral to the liquid pool in the clarified area, and the filtrate quality is relatively poor (commonly known as “back mixing”). Liquid ring layer thickness: liquid ring layer thickness is an important parameter for equipment optimization, which directly affects the effective sedimentation volume of the centrifuge and the length of the dry zone (bank zone), and then affects the treatment effect of sludge dehydration. Generally, it is achieved by manually adjusting the level of the liquid level baffle in the shutdown state, and the adjustment must ensure that the level of each level baffle is the same, otherwise, it will cause severe vibration when the centrifuge is running. The increase in the thickness of the liquid ring layer will increase the settling area, the residence time of the material in the machine will also increase correspondingly, and the quality of the filtrate will be improved, but the length of the dry zone (bank zone) at the same time will be shortened, resulting in the reduction of the mud biscuit degree. On the contrary, lower liquid ring layer thickness can obtain higher solid content of mud cake, but at the cost of filtrate quality. Process factors: To improve the sludge dewatering performance, an appropriate amount of organic polymer flocculant, such as polyacrylamide (PAM), should be uniformly added before mechanical dewatering to reduce the specific resistance of the sludge, so that the sludge solid phase and liquid phase separation is easier to dehydrate, and the type of flocculant must be adapted to the characteristics of the sludge and the type of equipment and operating conditions. In many cases, the agent with better performance in the flocculant selection beaker test does not have better performance in practical applications, and the important reason is that although the agent characteristics meet the sludge characteristics to a certain extent, it cannot fully meet the operating conditions of the equipment.

Many factors affect the dewatering effect of decanter centrifuge, and all factors affect each other, so the treatment effect is the result of the comprehensive action of the above factors, the selection of centrifuge should be combined with the actual situation of the project, the adjustment of operating parameters should be considered from the expected mud cake moisture content, solid rate and economic factors required by the disposal method of the mud cake after dehydration

KOSUN series of Decanter Centrifuges


KOSUN series of decanter centrifuges are used for sedimentation and separation of suspensions with solid particles diameter above 2μm. The specific gravity and viscosity of treated mud can meet the ideal operational requirements, providing conditions for better recycling and

efficient energy-saving environmental protection.KOSUN series of decanter centrifuges have undergone years of research,production, on-site application, and continuous optimization  and

improvement. It has the advantages of good separation effect, large processing capacity, reliable operation, long service life, convenient maintenance, stable operation. and low noise.

Features and Advantages

 Innovative designs include a longer bowl, which extends the residence time of the mud in the bowl,

resulting in drier solid phase and finer separation points.

Corrosion-resistant and wear-resistant bowl is provided, with quick-change hard alloy sleeves at the

sand discharge port of the cone bowl.

The discharge surface of the screw propeller is welded with a tungsten carbide wear-resistant layer.

We adopts bearings made by German FAG or Swedish SKF.

Electrical components comply with Siemens/Schneider explosion-proof standards or the International

Electrotechnical Commission explosion-proof certification system.

Special screw pumps and submersible slurry pumps for centrifuge feeding are provided to meet the processing requirements under different operating conditions.

Solid-liquid separation centrifuge is an essential equipment for various industries

Solid-liquid separation centrifuge is an essential equipment for various industries to separate solid particles from liquid suspension. This process is critical for the purification and clarification of liquids and the recovery of valuable solids. A centrifuge works by applying centrifugal force to a mixture, causing the solid particles to settle at the bottom and the clarified liquid to drain from the top.

One of the main uses of solid-liquid separation centrifuges is in the wastewater treatment industry. Centrifuges are used to remove solid particles, such as sludge and sediment, from wastewater, resulting in cleaner water that can be safely discharged or reused. Additionally, centrifuges are used in the pharmaceutical and biotechnology industries to separate cells, proteins and other biomolecules from fermentation broths and cell cultures.

There are many advantages to using a solid-liquid separation centrifuge. First, they are able to efficiently separate solid particles from liquids, significantly reducing the amount of waste produced. Not only does this help minimize environmental impact, it also reduces disposal costs. Additionally, centrifuges provide a continuous and automated separation process, resulting in consistent and reliable results.

Another advantage of solid-liquid separation centrifuges is their versatility. They can handle a variety of solid-liquid mixtures, including those with high solids concentrations, making them suitable for a variety of industrial applications. In addition, centrifuges enable high levels of clarification, producing clear liquid products with very low solids content.

In addition, solid-liquid separation centrifuges are known for their compact design and low energy consumption, making them a cost-effective and space-saving solution for solid-liquid separation processes. They also offer flexibility in scalability and can be easily adapted to different production capabilities.

In summary, solid-liquid separation centrifuges play a vital role in various industries by efficiently and reliably separating solid particles from liquid suspensions. Their uses range from wastewater treatment to pharmaceutical and biotech applications, and their advantages include high efficiency, versatility and cost-effectiveness. As the industry continues to prioritize sustainability and efficiency, solid-liquid separation centrifuges are likely to remain an indispensable tool in the solid-liquid separation process.

KOSUN- China Solids Control Leader&Drilling Waste Management Expert
WhatsApp/Wechat:+86 13379250593
Contact person: Monica Li
Online consulting:

The role of centrifugal pumps in drilling mud operations

The role of centrifugal pumps in drilling mud operations is critical to maintaining the efficiency and safety of the drilling process. One of the primary uses of centrifugal pumps in drilling in drilling mud operations is to handle mud.

Mud is a mixture of water and solids that is a byproduct of the drilling process. This mixture is often abrasive and may contain a variety of materials, including rock, sand and drill cuttings.  Effective removal and transportation of this mud is important to prevent clogging of drilling equipment and maintain a clean working environment.

Centrifugal pumps in drilling are commonly used in drilling mud operations to handle the mud efficiently. These pumps are designed to use centrifugal force to increase the pressure of the slurry, making it easier to transport. A rotating impeller within the pump creates a high-speed slurry flow, which is then directed to the desired location through the discharge pipCe.

One of the main advantages of using centrifugal pumps in drilling to handle slurries is their ability to handle large volumes of fluid with minimal maintenance. These pumps are designed to handle abrasive materials and are wear-resistant, making them ideal for the harsh conditions of drilling mud operations.

In addition to handling the mud, centrifugal pumps in drilling also play a vital role in maintaining circulation of the drilling mud itself. Drilling mud is essential for cooling and lubricating drilling equipment and carrying drill cuttings to the surface. Centrifugal pumps in drilling are used to circulate drilling mud from the surface to the drill bit and back, ensuring that the mud remains in constant motion to perform its various functions.

centrifugal pumps

In summary, centrifugal pumps in drilling play a vital role in drilling mud operations, especially in handling the mud and maintaining drilling mud circulation. Their ability to efficiently transport abrasives and large volumes of fluid makes them an important component in ensuring the smooth and safe operation of the drilling process.

Tags: centrifugal pump for solids control system, drilling mud centrifugal pump manufacturer, centrifugal bentonite slurry pump, Centrifugal Sand Pump, horizontal bentonite slurry pump, sand pump used in drilling, bentonite pump, centrifugal pump price, drilling fluid pump, sand pump, centrifugal pumps for sale, centrifugal pump in oilfield, pumps for drilling fluid

KOSUN- China Solids Control Leader&Drilling Waste Management Expert
WhatsApp/Wechat:+86 13379250593
Contact person: Monica Li
Online consulting:

KOSUN high-speed decanter centrifuge designed for efficient separation in the oil and gas industry

Does your oilfield operation need a high-speed decanter centrifuge? KOSUN decanter centrifuge is your best choice! This cutting-edge equipment is designed for efficient separation and clarification of various liquids in the oil and gas industry. With a wide range of applications, KOSUN decanter centrifuges are a versatile and reliable solution.

decanter centrifuges

One of the main applications of KOSUN decanter centrifuges is the treatment of dewatered sewage, sludge, and suspensions. It effectively removes moisture and separates solid particles from liquids, resulting in cleaner, more manageable waste. This is critical to maintaining environmental regulations and ensuring the smooth operation of oil fields.

In addition, the KOSUN decanter centrifuge can also be used to concentrate sewage or sludge. By extracting the liquid components from these mixtures, they can be processed more efficiently and reduce overall waste volume. This not only saves time and money but also minimizes the environmental impact of operations.

Another distinctive feature of the KOSUN high-speed decanter centrifuge is its ability to clarify different types of liquids. Whether you need to separate two immiscible liquid or solid phases, this device can handle it. Its large drum and high-speed operation enable efficient separation based on particle size and density.

When it comes to product functionality, KOSUN Machinery prides itself on providing customers with free technical consultation. Additionally, their decanter centrifuges come with installation and commissioning services to ensure a smooth installation process. This level of support sets them apart from their competitors and ensures your operations run seamlessly.

In addition, KOSUN high-speed decanter centrifuges are specially designed for drilling mud processing and drilling waste processing. Complies with all industry standards and has US API and EU CE certification. This ensures its quality and reliability in the harsh oilfield environment.

In order to improve user experience, KOSUN high-speed decanter centrifuge can also be equipped with PCL touchscreen electrical control cabinet for intelligent monitoring. This advanced feature allows easy operation and real-time monitoring of equipment performance.

In summary, KOSUN high-speed decanter centrifuges are the perfect solution for all your oilfield separation and clarification needs. Its diverse applications, advanced features and reliable performance make it a valuable asset to any operation. Contact KOSUN today for a free technical consultation and learn how their decanter centrifuges can optimize your oilfield processes.

Unveiling the Role of Centrifuge in Drilling Rigs: A Key Device for Efficient Operations

The centrifuge in drilling rigs plays a vital role in ensuring a smooth and efficient drilling process. It is a critical piece of equipment in all aspects of drilling operations, including purifying drilling fluids, recovering drilling fluids, and protecting drill bits and drill strings.

The role of centrifuge in drilling rigs

KOSUN centrifuge in drilling rigs

One of the main functions of a centrifuge in drilling rigs is to purify the drilling fluid. Drilling fluid, also known as drilling mud, is an important part of the drilling process as it helps lubricate the drill bit, bring cuttings to the surface, and maintain wellbore stability. However, during the drilling process, solid particles tend to accumulate in the drilling fluid, causing its quality to deteriorate. This accumulation can lead to various problems, such as reduced lubrication efficiency and increased viscosity. Here, centrifuges come into play to separate solid particles from the drilling fluid. By doing so, the stability of drilling fluid quality is ensured, allowing for efficient and effective drilling operations.

In addition to purifying drilling fluids, centrifuges also play a vital role in drilling fluid recovery. Once the solid particles are separated from the drilling fluid, they can be further processed. For example, pressure-drying solid particles allows them to be disposed of as solid waste. This not only helps maintain a clean drilling environment but also ensures compliance with environmental regulations. On the other hand, the low-density liquid phase separated by the centrifuge can be recycled and reused. By recycling drilling fluids, drilling costs can be significantly reduced because there is no need for a constant supply of fresh fluid.

In addition, centrifuges help protect the drill bit and drill string. Solid particles present in drilling fluids can cause damage to these critical components of the rig. Because centrifuges purify drilling fluids by removing solid particles, they can effectively reduce wear on drill bits and drill strings. This in turn increases service life and reduces replacement costs. Additionally, reduced wear helps improve drilling performance, resulting in greater efficiency and productivity.

Overall, centrifuges are an essential piece of equipment in a drilling rig and provide multiple benefits to the drilling process. Its ability to purify drilling fluid ensures the stability of its quality and maintains the efficiency of drilling operations. The role of centrifuges in recycling drilling fluids helps reduce costs and minimize environmental impact. In addition, it helps protect drill bits and drill strings, ensuring their service life and improving drilling performance.

As drilling operations continue to develop, the role of centrifuge in drilling rigs has become more important. As technology advances, centrifuges are now more efficient and effective than ever before. Integrating them into drilling rigs has become standard practice, allowing operators to achieve higher productivity, cost savings and environmental sustainability.

To sum up, the centrifuge in drilling rigs is a key piece of equipment to ensure efficient and smooth drilling operations. Its ability to purify drilling fluids, recover drilling fluids, and protect drill bits and drill strings makes it an important part of any drilling rig setup. By investing in high-quality centrifuges and taking advantage of their capabilities, drilling companies can optimize their operations, reduce costs, and improve overall performance.

KOSUN- China Solids Control Leader&Drilling Waste Management Expert
WhatsApp/Wechat:+86 13379250593
Contact person: Monica Li
Online consulting:

How to Properly Maintain and Service Horizontal Centrifugal Sand Pumps?

Proper and timely maintenance of horizontal centrifugal sand pumps is necessary to ensure their normal operation and extend their lifespan. This aspect should be given importance for the use of any type of pump.

  1. Check the oil level on the power end when the oil level stabilizes. This should be done at least once a day. If a chain drive is used, the oil level in the chain box should also be checked.
  2. Observe the working condition of the cylinder liner and piston. It is normal to have a small amount of mud carried out with the piston. If there is leakage, promptly replace the piston and thoroughly inspect the wear of the cylinder liner. If there is significant wear, the cylinder liner should be replaced in a timely manner.
  3. Check the cylinder liner cavity in the frame. If there is a large amount of mud or oil deposits, it should be cleaned.
    Check the water tank of the spray pump. If the water level is insufficient, it should be replenished. If the water quality is contaminated, it should be replaced. The water tank should also be cleaned.
  4. Check the inflation pressure of the airbag to ensure it meets the operational requirements.
  5. Check the reliability of the safety valve and replace it if necessary.
  6. Check the pressure gauge of the lubricating oil pump for any changes. If the pressure is very low (less than 0.035MPa) or there is no pressure, promptly inspect the inlet and outlet filters for any blockages.
  7. Loosen the clamp on the piston rod daily. Check if the clamp cone surface, the piston rod, and the connecting surface of the intermediate rod are clean. Rotate the piston rod one-quarter turn and tighten it. This is done to evenly distribute the wear on the piston, prolonging the lifespan of both the piston and the cylinder liner.
  8. Before tightening the valve cover, apply lubricating grease to the thread surface. Check for any loosening every 4 hours.
  9. Regularly observe the seals on the valve cover, cylinder liner (including the seal between the wear plate and the fluid cylinder), and the alarm hole. If there is mud discharge, promptly replace the corresponding sealing ring.

Above is the sharing of KOSUN Machinery regarding the maintenance and servicing of horizontal centrifugal sand pumps.

Tags: horizontal centrifugal sand pump, drilling mud centrifugal pump manufacturer, centrifugal pumps for sale

KOSUN- China Solids Control Leader&Drilling Waste Management Expert
WhatsApp/Wechat:+86 13379250593
Contact person: Monica Li
Online consulting:

KOSUN drilling mud solid-liquid separation centrifuge is an efficient solid-liquid separation equipment

KOSUN produces and sells drilling mud solid-liquid separation centrifuges. They are mainly used for solid-liquid separation in drilling mud waste management.

The drilling mud solid-liquid separation centrifuge has low energy consumption, stable performance, good separation effect, and high recovery rate. The continuous completion of processes such as feeding, dewatering, washing, and discharging during the separation process ensures high production efficiency and automation level, making it an excellent solid-liquid separation equipment.

The high-speed horizontal screw centrifuge is used for oily sludge treatment. The company’s specially developed 2-phase and 3-phase horizontal screw centrifuges for oily sludge, oil-contaminated sludge, and aged oil have achieved unprecedented good results in production practice, with all indicators superior to national standards.

Features and advantages:

Unique design with a longer drum to extend the residence time of drilling mud in the drum, resulting in drier solid phase and finer separation point.

Corrosion-resistant and wear-resistant drum with long service life and durability.

Corrosion-resistant and wear-resistant screw propeller.

Adopt German FAG and Swedish SKF brand bearings.

Electrical components meet Siemens Schneider explosion-proof standards.

Provide screw pumps, centrifugal pumps, feed pumps to meet different application needs.

KOSUN’s drilling mud solid-liquid separation centrifuge is key equipment in the treatment of drilling waste, oily sludge, and mud-water separation, playing a crucial role. They have been sold to dozens of countries domestically and internationally, used in multiple projects, and have received consistent praise from customers for their excellent separation effect and high recovery rate.
Tags: drilling mud solid-liquid separation centrifuge, solid-liquid separation equipment, drilling mud waste management, decanter centrifuge, manufacturer, for sale, supplier

Related Product:

KOSUN- China Solids Control Leader&Drilling Waste Management Expert
WhatsApp/Wechat:+86 13379250593
Contact person: Monica Li
Online consulting:

Decanter Centrifuges: Revolutionizing Drilling Waste Mud Treatment

Drilling activities produce a large amount of waste drilling mud, which contains various solids and impurities. Effective management of drilling waste is critical to ensuring environmental protection and compliance with regulatory standards. This is where a decanter centrifuge comes into play.

A decanter centrifuge is a highly efficient device used to separate solids from liquids. It uses centrifugal force to accelerate the settling process, so as to realize the separation of materials with different densities. In the context of drilling waste mud, decanters play a key role in the treatment and efficient management of this waste.

So, how does the decanter centrifuge process the drilling waste mud? Let’s dig a little deeper.

First, waste drilling mud is collected from the drilling site and transported to a dedicated treatment facility. The facility is equipped with one or more decanters, depending on the volume and type of drilling waste being processed.

Then the drilling waste mud is sent to the decanter centrifuge through the inlet. Inside the centrifuge, the slurry passes through a series of stages designed to separate solids from liquids. The main components of a decanter centrifuge include the bowl, conveyor, and drive system.

Initially, drilling waste mud is introduced into the drum. As the drum rotates, centrifugal force pushes the denser solids against the drum walls, while the lighter liquid phase moves toward the center. This separation is facilitated by the density difference between the solid particles present in the slurry and liquid phases.

The conveyor is an integral part of the decanter centrifuge that continuously removes the separated solids from the bowl. The speed of the conveyor can be adjusted to control the dryness of the discharged solids. This flexibility allows customization to the specific requirements of the drilling waste being processed.

At the same time, the liquid phase moves toward the center of the bowl and exits through the outlet. The separated liquid is usually further processed or treated to achieve the required quality standard before it can be safely discharged or reused.

Decanter centrifuges have several advantages in treating drilling waste mud. First, they provide efficient separation, allowing the removal of large quantities of solids from the liquid phase. This not only reduces the amount of drilling waste but also improves the overall efficiency of the waste management operation.

Additionally, decanter centrifuges are versatile and can handle a wide variety of drilling waste mud compositions. They can effectively separate different types of solids, including fine particles, from various drilling fluid systems. This adaptability makes the decanter centrifuge suitable for processing waste drilling mud, regardless of its complexity or variability.

Furthermore, the continuous operation of the decanter centrifuge ensures high throughput and minimal downtime. This function is especially important in waste drilling mud handling as it enables timely and efficient waste management operations.

In conclusion, decanter centrifuges have revolutionized the way drilling waste mud is handled. Their ability to effectively separate solids and liquids makes them an essential part of waste management systems. By harnessing centrifugal force, decanter centrifuges are efficient, versatile, and continuous in processing waste drilling mud. These machines help ensure environmental protection and compliance with regulatory standards for the drilling industry.

Tags: decanter centrifuges, drilling waste mud treatment

Related Product: