Month: January 2026

In modern drilling solids control systems, the stability of fluid transportation directly determines the efficiency of the entire purification process. As the core equipment for precision fluid handling, the Centrifuge Feed Pump (commonly known as the Progressive Cavity Pump or Screw Pump) has become indispensable. Unlike traditional centrifugal pumps, it utilizes a unique positive displacement principle to handle high-viscosity, shear-sensitive mud, ensuring the continuity and accuracy of solids control operations.

Working Principle of the Centrifuge Feed Pump

The Centrifuge Feed Pump operates as a positive displacement pump. Its core mechanism consists of a high-precision rotating rotor and a stationary stator. As the rotor turns within the stator, a series of sealed cavities move axially from the suction inlet to the discharge outlet. This “displacement-style” movement pushes the drilling fluid forward in a continuous, smooth, and axial flow. This method eliminates the pulsations commonly found in other pump types, allowing for highly accurate metering and stable feeding.

Core Technical Advantages

Low Shear Force for Media Protection

Traditional centrifugal pumps rely on high-speed impellers that can break down the molecular chains of polymers in drilling fluids. In contrast, the Centrifuge Feed Pump conveys media with extremely low shear force. This “gentle” handling preserves the chemical properties and physical structures of the mud, which is critical for maintaining fluid rheology.

High Viscosity and Solids Handling

One of the most significant advantages of this pump is its ability to handle complex fluids. Whether it is low-viscosity water-based mud or ultra-high-viscosity oil-based waste slurry containing high solids content, the pump maintains a steady flow rate without significant performance drops.

Constant and Pulsation-Free Flow

The output flow of a Centrifuge Feed Pump is directly proportional to its rotational speed and remains constant regardless of discharge pressure fluctuations. This stability is essential for downstream equipment that requires a steady feed rate to maintain separation efficiency.

Excellent Self-Priming Capability

These pumps possess powerful vacuum suction abilities. They can easily prime and draw fluids from deep mud pits or through long-distance pipelines without the need for additional foot valves or manual priming, simplifying site operations.

Key Application Scenarios in Solids Control

Precision Feeding for Decanter Centrifuges

The separation performance of a decanter centrifuge depends heavily on the stability of the incoming slurry. As the primary feeding source, the Centrifuge Feed Pump provides a non-pulsating, constant flow that allows the centrifuge to maintain optimal G-force and separation precision, resulting in higher mud recovery and drier solids.

Zero-Discharge Waste Management

In environmentally sensitive projects, these pumps are used to transport concentrated waste, dehydrated mud cakes, and flocculants. Their non-clogging design and ability to move semi-solid materials ensure that waste management systems operate without interruption, supporting “green” drilling objectives.

Automated Dosing and Chemical Metering

On digital and automated drilling rigs, Centrifuge Feed Pumps are often integrated with Variable Frequency Drives (VFD). They serve as high-precision dosing units for chemical additives, enabling the automated adjustment of drilling fluid properties while reducing chemical waste and operational costs.

The Centrifuge Feed Pump is more than just a transportation tool; it is a critical component for the refinement of solids control technology. By offering superior handling of high-viscosity and shear-sensitive fluids, it provides the core power necessary to optimize separation efficiency and ensure environmental compliance in modern drilling operations.

As environmental mandates for Zero Liquid Discharge and operational efficiency intensify in 2026, the industry is rapidly transitioning from obsolete earthen pits to professional Drilling Waste Management solutions. Whether in deep-well oil & gas exploration, Horizontal Directional Drilling (HDD), or urban piling projects, modern complexities demand advanced Mud Circulation and Solids Control Systems. A professional Liquid Mud Plant (LMP)—also known as a Centralized Mud Support Station—has evolved into a mission-critical infrastructure for modern engineering.

1. Spatial Revolution: Vertical Tank Farms and Modular Solids Control Units

Diverging from traditional horizontal layouts that consume excessive land, KOSUN’s Vertical Mud Tank architecture redefines site footprint efficiency, reducing land occupation by over 40%. This compact design is specifically engineered for space-constrained urban construction and high-cost job sites. Furthermore, the Modular Mud Treatment System allows for rapid assembly and seamless relocation, providing the agility required for Mobile Mud Plant operations and fast-track project deployments.

2. Process Integration: From Precision Blending to Advanced Cuttings Management

Modern LMPs are far more than mere Mud Storage Tank Farms; they function as intelligent, closed-loop Solid-Liquid Separation hubs:

• Smart Blending & Bulk Storage: Automated agitation and mixing units ensure precise control over weighted mud and rheological properties, maintaining optimal fluid performance for the borehole.
• High-Efficiency Solids Control: By integrating Dryer Shakers, Desanders, Desilters, and Decanter Centrifuges, the system aggressively removes harmful drill solids. This facilitates high-ratio Drilling Fluid Recovery, drastically slashing the procurement costs of new mud materials.
• Cuttings Management & Volume Reduction: Utilizing Filter Presses or Vertical Cuttings Dryers for deep dewatering, the plant transforms waste sludge into low-moisture dry cakes. This process is the definitive pathway to achieving Zero Discharge and streamlining waste logistics.

3. Strategic Value: Synergizing Economic Efficiency with Environmental Compliance

Implementing a Centralized Mud Treatment Station yields multifaceted dividends: it optimizes logistics, conserves chemical additives, and reduces labor overhead. By maintaining stable fluid properties, the KOSUN LMP not only ensures compliance with the most stringent 2026 Environmental Regulations but also minimizes downhole risks and enhances drilling speed.

In the era of Sustainable Drilling, adopting advanced Drilling Waste Management technology is no longer an operational cost—it is a strategic investment in long-term profitability and “Green Construction” leadership.

As urban infrastructure expands, Horizontal Directional Drilling (HDD) faces dual challenges: rising operational costs and environmental responsibilities. Proper mud management is crucial—ineffective treatment compromises drilling efficiency, increases waste disposal expenses, and risks regulatory non-compliance.

KOSUN Mud Recycling System Proven Expertise in Trenchless Drilling

With over 30 years of solids control experience, KOSUN provides reliable HDD mud recycling solutions engineered for challenging conditions. Our systems effectively handle high-viscosity fluids and fine particle separation, ensuring optimal fluid recovery even in complex geologies.

The recently launched KSMR series—covering 200 to 1000 GPM capacities—delivers tailored performance for projects of any scale. Each system integrates field-proven components: shale shakers, desanders, centrifuges, and intelligent mud tanks that work in concert to maintain fluid integrity and maximize reuse.

KOSUN Mud Recycling System Engineered for Real-World Demands

From congested urban sites to sensitive environmental crossings, KOSUN systems maintain consistent performance where it matters most. By enabling closed-loop fluid management, we help contractors reduce fresh mud consumption by up to 60%, minimize waste volumes, and maintain full compliance throughout the drilling process.

KOSUN Mud Recycling Systems Sustainable Drilling and Operational Simplicity

As your partner in responsible drilling, KOSUN combines advanced separation technology with practical operational design. Our solutions not only protect your budget through significant cost savings, but also safeguard project timelines and environmental commitments.

Ready to optimize your next HDD project? Contact KOSUN for a customized mud management solution that balances efficiency, economy, and compliance

In solid-liquid separation operations across industries such as oil drilling and chemical environmental protection, the ability to process materials continuously and efficiently while maintaining stable separation results is key to increasing capacity and controlling costs. The Decanter Centrifuge (Horizontal Spiral Discharge Sedimentation Centrifuge) developed by KOSUN Machinery, with its mature centrifugal sedimentation technology and innovative structural design, has become core equipment for processing multi-medium suspensions. It plays an irreplaceable role, particularly in drilling mud purification and industrial sludge dewatering.

The core advantages of the KOSUN Decanter Centrifuge stem from precise centrifugal sedimentation principles and user-centric structural design. By leveraging centrifugal force to achieve high-efficiency separation of microscopic particles from the liquid phase, it can accurately capture and separate solid particles with a diameter ≥2μm. After processing, the mud regains its ideal viscosity and specific gravity, enabling efficient recycling and significantly reducing the cost of new mud procurement and the pressure of waste discharge.

As continuous-duty equipment, it utilizes a “Bowl-Scroll” collaborative operation mode. Once the suspension enters via the feed pipe, solid particles rapidly settle on the inner wall of the bowl under centrifugal force. They are then continuously pushed to the discharge port by the screw conveyor (scroll), while the clarified liquid phase is directed out through the overflow port. This continuous separation process requires no downtime, significantly enhancing operational efficiency.

Durability and intelligent design further highlight the product’s competitiveness. Key components of the KOSUN Decanter Centrifuge, such as the bowl and screw conveyor, are manufactured from high-quality stainless steel. Critical wear-prone areas are sprayed with tungsten carbide wear-resistant coatings or embedded with hard alloy inserts, effectively improving corrosion and wear resistance to extend service life. For complex drilling conditions, it is equipped with an explosion-proof VFD (Variable Frequency Drive) control system, allowing for stepless adjustment of the separation factor. This flexibility enables the equipment to adapt to suspensions of various concentrations, ensuring operational stability. Furthermore, the specialized adjustable overflow port design reduces energy consumption by more than 15% compared to similar products, further lowering operation and maintenance costs.

With its stable performance, the KOSUN Decanter Centrifuge is widely used in domestic and international oil drilling, coal chemical industries, and more. In overseas drilling projects, its explosion-proof design and multi-medium adaptability meet the stringent operational standards of different regions. The processed drilling waste consistently meets local environmental discharge requirements, making it one of KOSUN Machinery’s flagship products for international market expansion. From onshore oilfields to industrial wastewater treatment sites, this equipment provides customized solutions for solid-liquid separation needs with its hallmarks of “High Efficiency, Stability, Reliability, and Energy Saving.”

In engineering fields such as urban rail transit, mine drilling, municipal construction, and river dredging, the efficient treatment of slurry mixtures is both a key factor in ensuring construction efficiency and a core link in practicing environmental requirements. KOSUN has deeply cultivated the R&D and production of solid-liquid separation equipment for over thirty years. The KOSUN KD Series Slurry Separation System has become a benchmark in slurry treatment due to its modular design, high-efficiency separation performance, and wide adaptability. This product series not only covers numerous major domestic projects but is also exported to multiple countries worldwide, gaining broad market recognition for its stable performance.

KOSUN KD Series Slurry Plant Core Advantages of Three Stage Processing and Modular Integration

The core strength of the KD series originates from its scientific three-stage treatment architecture and modular integrated design. The system primarily consists of three major parts: the scalping shaker module, the desanding module, and the desilting module, forming a complete “pre-treatment, core separation, and fine purification” workflow.

The scalping shaker module acts as a pre-screening unit, rapidly removing coarse particles to reduce the load on downstream equipment. The desanding module, equipped with hydrocyclones and fine-mesh vibration screens, focuses on eliminating smaller sand particles. The desilting module features desilting cyclones for precise separation based on site requirements. This modular structure strictly follows standard container dimensions and includes foldable operating platforms, which significantly reduce the site footprint and facilitate transport and installation. It supports both skid-mounted integration and trailer-mounted mobility to quickly adapt to diverse operational scenarios such as tunneling, piling, and dredging.

KOSUN KD Series Slurry Plant Technical Characteristics and Extreme Environment Adaptability

Technical features of the KOSUN KD series demonstrate exceptional scenario adaptability and operational stability. The system is equipped with adjustable vibratory screens where the G-force, screen deck angle, and mesh size can be flexibly tuned to handle material from different geological formations. KOSUN KD Series Slurry Separation System core components are made of anti-corrosion and wear-resistant materials treated with multiple processes, enabling them to withstand harsh conditions in mines and tunnels while effectively extending service life and reducing failure rates. To suit global construction sites, the system supports various electrical power specifications and can operate with independent generator sets in extreme conditions to ensure uninterrupted construction.

KOSUN KD Series Slurry Plant Application Scenarios Across Four Core Engineering Sectors

Extensive application cases have verified the core value of the KD series. The KOSUN KD Series Slurry Separation System has been successfully applied in four major areas:

Slurry Balance Shield TBM Treatment provides slurry purification for urban subway tunneling.

Bored Piling Construction Slurry Treatment adapting to mud produced by rotary rigs, percussion drills, and other equipment.

Diaphragm Wall Construction Slurry Treatment supporting trenching operations for hydromills and similar machinery.

Trenchless Construction Slurry Treatment covering Horizontal Directional Drilling (HDD) and slurry pipe jacking processes.

KOSUN KD Series Slurry Plant Product Diversity for Different Project Scales

Product diversification is the key to matching different engineering scales. The KOSUN KD Series Slurry Separation System currently offers models including KD-50, KD-100, and KD-200, with processing capacities ranging from 50 to 200 m³/h, allowing customers to select models flexibly based on project volume.

As core equipment in the field of engineering environmental protection, the KOSUN KD Series Slurry Separation System provides efficient and eco-friendly slurry treatment solutions through scientific design and stable performance. In the future, as global environmental requirements for construction continue to rise, the KD series will continue to leverage its technical advantages to empower domestic infrastructure while helping KOSUN deepen international cooperation and contributing to Chinese equipment strength to global environmental upgrades.