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TBM Muck treatment System-KOSUN

Xi’an KOSUN Environmental Engineering Co., Ltd. focuses on development and services of complete technologies and equipment of sludge and TBM muck reduction and resource utilization.Our TBM Muck Treatment System had been successful used in shenzhen,China.

TBM Muck treatment System
TBM Muck treatment System

Use of TBM muck as construction material: Tunnel boring machines (TBM) are widely used in tunnel construction in rock. The rock chips (muck) produced are rarely used for construction applications, however, because the suitability of the material is not well understood. Yet the cuttings appear to be of approximately the correct average size for some applications. If they are suitable in other respects, cost savings can be realized in tunnel construction, where aggregate is a common requirement. A review of standard construction aggregate specifications indicates that hardrock TBM much would be suitable for several construction applications with a minimum of processing: road pavement and structural concrete. Processing options also are discussed for cases where the raw TBM muck is nearly, but not quite, suitable. A 0.65 metric ton (1420 lb) cutting sample generated by a laboratory tunnel boring machine operating in a welded tuff is analyzed for suitability for different construction applications. In addition, numerous tunneling projects that use or have studied TBM waste for construction purposes are described.

Know more about KOSUN TBM Muck Treatment System, please email sales@adkosun.com.

Tag:TBM Muck Treatment System.

Kosun- China Solids Control Leader&Drilling Waste Management Expert
Email: sales2@adkosun.com
Wechat:+86 18792396268
Contact person: Lily Wang
Online consulting:
http://www.kosun.com
http://www.kosuneco.com

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KOSUN Tunnel Boring Mud System

An efficient Tunnel Boring Mud System is the basis for the successful use of slurry-supported tunnel boring machines(TBM). KOSUN Tunnel Boring Mud System is popular for project of AVN Machines, Mix shields  or Shaft Sinking Machines and is suitable for purifying slurry in the mud-water balance shield, diaphragm wall, pile foundation and other projects in the process of circulation drilling. KOSUN Tunnel Boring Mud System can save construction costs, reduce mud emissions and reduce environmental pollution. It is an economical, efficient and environment-friendly necessary construction equipment. 

Advantages of Tunnel Boring Mud System:

(1) Simple and useful treatment process, as well as convenient installation, operation and maintenance;

(2) Modular and integrated design, transportation and installation subject to standard container size, foldable operating platform, compact structure, small footprint and flexible field use;

(3) Adjustable G-force of shale shaker, screen panel angle and mesh size, strong overall system adaptability and easier treatment of materials from various formations;

(4) Meet separation requirements on various materials and customize process as per the cut point of D 50 ; meet the requirements on different handling capacities, 100~3000m³/h;

(5) Meet various power specifications as per construction needs, and even generator set can be used for operation;

(6) The whole system is skid-mounted integrated system and can be also changed into vehicle-mounted mobile treatment units.

KOSUN Tunnel Boring Mud System utilize our shale shakers, desander, desilter, as well as decanter centrifuges to processes separate and remove the excavated solids from the bentonite suspension – a mixture of water and thixotropic clay. The cleaned fluid is then transferred back to the slurry circulation. Tunnel Boring Mud System is very important for slurry tunnel boring. KOSUN is also very professional at Tunnel Boring Mud System.(Editor:Kosun Lily Wang)

Kosun-China Solids Control Leader&Drilling Waste Management Expert
Email: sales2@adkosun.com
Wechat:+86 18792396268
Contact person: Lily Wang
Online consulting:
http://www.kosun.com
http://www.kosuneco.com

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KOSUN oil-based mud drilling waste treatment system

Kosundrilling waste treatment system is also known as drilling mud zero-discharge, rock cuttings mud zero-discharge, drill cuttings mud zero-discharge, mud while drilling mud zero-discharge. According to the useage, it is divided into: water-based mud zero-discharge and oil-based mud zero-discharge. Its main equipment includes: dry shale shaker, drill cuttings dryer, drilling fluid centrifuge, screw conveyor, screw pump, etc. The mud zero-discharge can effectively control the cuttings moisture content (6% -10%) in the drilling mud, stabilize the liquid phase performance, and achieve the purpose of mud zero-discharge drying treatment. According to customer needs and site conditions, the mud zero-discharge system can be customized.

Filter presses and drill cuttings dryers are important equipment for processing drilling mud waste to achieve solid-liquid separation and dehydration and drying. Compared with drill cuttings dryer, the filter press is an early dewatering device for waste drilling mud. It requires the addition of chemical auxiliary, the screen cloth is easy to block, the operation is complicated, the labor intensity is high, and the maintenance cost is high. The drill cuttings dryer is a new type of solid-liquid separation and drying equipment. It does not need to add chemical auxiliary. The
vibrating screen is not easy to block. the installation area is small. It is easy to install and operate. The processing capacity is strong. . With low maintenance costs, at present, it has become an popular equipment for domestic and foreign enterprises to solve the problem of solid-liquid separation and drying of mud in the fields such as drilling while abandoning or abandoned mud ponds, and the treatment of mud zero-discharge .

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KOSUN screw conveyor is designed in accordance with strict safety standards.

Basic principle and characteristics of the horizontal screw conveyor: horizontal screw conveyor is a rotating screw will be pushed forward and transport along the casing of materials in transmission work, is a new kind of in the bottom of the bin and to break the arch and the uniform feeding, its broken arch performance is strong, for all kinds of powdery and granular materials can achieve broken arch and continuous transmission function, and effectively eliminate different particle size and proportion of mixed material in bending phenomenon occurs in the bunker, thus effectively avoid material wriggle through the earth cabin, and to material status as running water.The horizontal screw conveyor has many features. The screw conveyor is convenient for multi-point loading and unloading. The mixing, stirring and cooling functions can be completed simultaneously in the conveying process.

KOSUN is a professional manufacturer of screw conveyors integrating research, design, production, installation and after-sales service. The company in a responsible attitude to customers, the design and manufacture of products in strict accordance with the testing standards for quality testing. Over the years, with advanced technology, excellent quality, by the majority of customers at home and abroad praise.

KOSUN screw conveyor is designed in accordance with strict safety standards, and its u-shaped groove has a grille shield to prevent foreign objects from entering the groove, ensuring the safety of the operation of the staff. The bottom frame protects and supports the conveyor, ensuring the structural stability of the equipment.

Features and advantages of KOSUN screw conveyor:

1. High efficiency transmission: compact structure, stepless speed regulation, different processing capacity, can meet the needs of different drilling conditions;

2. Flexibility of the structure: each section is 12 feet and consists of several sections. The total length can be flexibly determined according to the equipment layout at the drilling site;

3. There is a grille cover on the u-shaped groove to prevent foreign bodies from entering the groove, ensuring the operation safety of the staff;

4. The spiral blade of the screw conveyor is made of anti-corrosion and wear-resistant material to extend its service life;

5. Advanced and reasonable design, combined with advanced manufacturing technology and perfect quality assurance system, make it has small volume, large load bearing torque, low noise, oil leakage and other significant advantages.

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Sludge dewatering and capacity reduction is not only an important part of sludge treatment.

Sludge dewatering and capacity reduction is not only an important part of sludge treatment, but also the most difficult part to realize. Domestic sewage treatment plants can only reduce the sludge moisture content to about 80% by mechanical dehydration, and a large amount of water brings great difficulties to the follow-up treatment of sludge. If the water is removed by means of heat evaporation, the huge energy consumption makes the sludge treatment cost high.

The reason why sludge dewatering and capacity reduction is difficult is that the sludge obtained in the sewage treatment process has high hydrophilicity, which makes it difficult for the water in the sludge to be liquid to achieve low-cost and efficient separation, resulting in the dewatering sludge difficult to achieve the economic and environmental unity of the treatment goal.

The sludge produced by sewage treatment has a high water content. Due to the combination of water and sludge particles, mechanical method to remove the sludge has a certain limit. The content of organic matter in the sludge, the proportion of ash, especially the addition of flocculant, has an important impact on the final solid content.Mud cake is still high in moisture content and fluid property, so it is difficult to dispose of it and the cost is still high, so it is necessary to further reduce the amount.At this point, in addition to natural air drying, only through the input of heat to form evaporation, can achieve a large reduction.The process of using heat to dry is called heat drying.

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Trenchless construction is a horizontal drilling project used in construction or infrastructure projects.

Trenchless construction is a horizontal drilling project used in construction or infrastructure projects. In the process of trenchless construction, drilling mud is needed to ensure the performance of trenchless drill. To make drilling mud reusable and to reduce drilling costs, contractors often use mud recovery systems to recover drilling mud.

KOSUN has decades of experience in the design and manufacture of mud recovery systems, especially in trenchless projects with a variety of compact mud systems available to customers. According to users’ different requirements and site area limits, KOSUN can provide mud recovery devices with different configurations to meet the requirements of different working conditions. There are usually two types of mud purification systems for trenchless construction: one is the desander swirl purification system and the other is the self-supporting mud recovery system.

Sand removal swirling purification system covers a small area and is economical. The system is a combination of a cyclone and a shaker, which are mounted on a small collection tank. The desander swirl system is a two-stage separation device, whose function is to remove coarse particles in drilling mud. The desander swirl system is mainly used in engineering that can accept large diameter solid drilling mud, such as piling.

The mud recovery system independently developed by KOSUN can be divided into four separation systems: coarse cuttings separation, sand separation, mud separation and ultrafine solid separation. The higher mud recovery system has a larger mud tank with more room to store purified drilling mud and more crown space for more separation and purification equipment. When the tank surface space is enough, the customer can also choose a centrifuge to reduce the ultra-fine solid phase in the drilling mud, to avoid the enrichment of ultra-fine solid phase in the drilling mud.

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The elevated diesel tank is installed with explosion-proof floating-ball level switch.

The elevated diesel tank is installed with explosion-proof floating-ball level switch; KOSUN 40+5m³ elevated diesel tank is the special-purpose oil tank to provide and store diesel for power machines (diesel engine, generator, etc.) of drilling crew. therefore the centrifugal oil pump can deliver the oil in oil storage tank to elevated oil tank automatically. In case of low oil level, the explosion-proof level switch opens, the oil pump starts automatically and oil transportation begins; in case of high oil level, the explosion-proof level switch closes, the oil pump closes automatically, and oil transportation ends. In order to prevent failure of explosion-proof level switch, the equipment is especially installed with oil return pipe. In such a way, the oil will not overflow from the tank even under failure of level switch.

When elevated oil tank is lifted up, the oil pressure rises. The oil in tank will be transported to equipment requiring diesel at drilling site from three channels through filter and flowmeter, and it can also flow back to the oil storage tank. The oil consumed by equipment can be read out from pointer of flowmeter.

After the elevated diesel tank is installed, check to ensure that all valves are in corresponding states. Park the refueling truck beside the oil tank, connect the outlet opening with oil feeding buffer tank or inlet opening before opening it and choose to start the 50CYZ-20 centrifugal oil pump; pay attention to the rotation direction of the oil pump. After opening or closing corresponding ball valves, and starting the oil pump, the oil flows into oil storage tank through filter, flowmeter, pipeline, ball valve and centrifugal oil pump. With liquid surface rising, the column of magnetic reversible level meter display changes from white to red. The junction of white and red colors indicates the liquid level of oil storage tank.

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Produced in the process of oil and gas exploration and development, drilling fluid waste amount is large.

Produced in the process of oil and gas exploration and development, drilling fluid waste amount is large, due to containing various products at the same time, the concentration of pollutant composition complex, high, high chromaticity, chemical oxygen demand (cod), the traditional approach is difficult to adapt to the new environmental protection requirements, an urgent need to accelerate drilling waste management efficient treatment and new technology, new technology and new equipment development, application, change the traditional waste drilling fluid end management ideas, set up the drilling pollution “wellsite closed loop” process control and new concept of clean production and complete the engineering application, Realize the new drilling clean production mode of “well standardization, green source, process reduction, end resource and equipment integration”.

Based on this, we look forward to the next trend: first, we should strengthen the exploration and field application of environmental protection drilling fluid, develop intelligent environmental protection drilling fluid technology, and reduce the difficulty and cost of end treatment and disposal of drilling fluid waste by greening the source. Ii. Improve the selective removal technology of micro and poor quality solid phase in drilling fluid, upgrade the treatment device, formulate the group’s unified drilling cleaner production standards, well site design standards and performance standards of recycled drilling fluid, and maximize the recovery and utilization of waste drilling fluid and waste water through process reduction. Iii. Establish the technical specifications for the classification, classification, temporary storage, treatment and disposal of drilling fluid wastes. According to different well depths, different drilling fluid systems and different lithologies, adopt corresponding treatment and comprehensive utilization technologies respectively, and realize the transformation of drilling fluid wastes into treasure through end-resource recovery. Iv. For drilling fluid wastes with different physical properties and different pollutant contents, different modular treatment units are selected to realize the modularization and standardization of drilling fluid waste treatment equipment through the integration of equipment.

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KOSUN SP series shear pump is a centrifugal pump designed for quick configuration of drilling mud.

KOSUN SP series shear pump is a centrifugal pump designed for quick configuration of drilling mud.

SP series shear pump can effectively mix and fully hydrate the added materials in the drilling fluid, save the use of mud materials, shorten the mud configuration time, provide good mud performance for the drilling process, is an ideal drilling fluid solid control equipment. The degree of dispersion and hydration of bentonite particles in water depends on: electrolyte content, time, temperature, number and concentration of surface replaceable cations in water. Other things being equal, SP series shear pumps can save bentonite by more than 30%.

SP series shear pumps allow the polymer to be diluted and hydrated as soon as possible. The high molecular weight of the polymer used in the mud is high, and it is not easy to hydrate directly, so the polymer needs to be pre-cut. The shear pump provides high shear efficiency and speeds up the dilution and hydration of the polymer, thus improving the quality and efficiency of the mud distribution.

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Final disposal and utilization of sludgeⅠ

After sludge is treated and disposed by a series of methods, there are generally the following final disposal methods for the dried sludge:

1. Sanitary landfill

Sanitary landfill is a traditional and mature sludge disposal method with low investment requirements and good effect, and can also increase part of urban construction land. As for the dry sludge, it is generally selected to be buried together with the municipal daily household garbage through solid waste landfill, or special sludge landfill can be set up for it. However, the current sludge treatment technology is not very perfect, some harmful substances in the sludge may not be removed clean, after landfill may have a certain potential threat to the surrounding environment.

2. Incineration

Incineration is the most thorough way of disposal. Because sludge contains a lot of organic matter and fibrous lignin, it generates a lot of heat after incineration, and the residue is less, and does not need sterilizing treatment. The energy generated during incineration can be used to generate electricity, and the ashes after incineration can be used to make cement, etc. Incineration of sludge is a very effective way to dispose of sludge.