Slurry separation plant

TBM is short for Tunnel Boring Machine. It is also known as a “mole”. It is a construction field drilling machine used to excavate tunnels and micro-tunneling with a circular cross section through a variety of soil and rock strata. They can bore through anything from hard rock to sand. Tunnel diameters can range from 1 m to 17.6 m to date. For smaller diameter less than 1m, it is HDD and CBM drilling. The most important part of a tunnel boring machine is its cutter head. Tunnel boring machine (TBM) is widely used today due to their ability to construct tunnels at record speeds.

But as the big diameter of the tunnel, the TBM drilling will generate large quantity waste slurry (mixture of rocks, sand, soil, water and drilling mud). The waste slurry must be treated to recover and reuse water, and reduce the solids phase waste. GN Solids Control makes different sizes of TBM Slurry Separation Plant to cater for different diameter tunneling excavation activities.

GN Solids Control is specialized in full line drilling mud solids control. equipment. All the processing equipment used for TBM Slurry Separation Plant are designed and made by GN Solids Control: the coarse separation shale shaker, desander separator, desilter separator. GN Solids Control is also capacity to make dewatering centrifuge for TBM slurry separation plant form normal size centrifuge to the big bowl and big capacity size.

Below is the popular treating capacity of GN made TBM Slurry Separation Plant models.
1. TBM Slurry Separation Plant model: GNTBM-240M. The treating capacity is 240m3/h.
2. TBM Slurry Separation Plant model: GNTBM-360M. The treating capacity is 360m3/h
3. TBM Slurry Separation Plant model: GNTBM-500M. The treating capacity is 500m3/h
4. TBM Slurry Separation Plant model: GNTBM-1000M. The treating capacity is 1000m3/h

GN Solids Control can also make big capacity TBM slurry separation system: GNTBM-900M (900m³/h), GNTBM-1200M (1200m³/h), GNTBM-1400M (1400m³/h), GNTBM-2000M (2000m³/h), GNTBM-2800M (2800m³/h), GNTBM-3600M (3600m³/h)

GN Solids Control is specialized in drilling mud solids control and waste management solutions. GN Solids Control is capable to design and make Oil Water and Solids Separation System to treat and recover various kinds of waste materials.

GN Oil Water and Solids Separation Systems are capable to treat below waste materials, but not only limited to below materials:

1. It can be used to treat oil sludge and oil, oil contaminated soil remediation, like from drilling waste pits, or from pondsand tanks
2. It can be used for water oil contaminated water-control and recovery
3. It can be used to treat waste oil and recover the oil to reuse
4. It can also be used to treat waste oil, water and solids mixture, and to recover oil, water and reduce the solids waste

Oil sludge means the waste mixture consisting of oil, water and solids. Oil water separation system is used to treat the oil sludge in order to reduce waste material, and recover oil and water for reuse. The oil sludge treatment system is also a popular solution to treat oil contaminated soil and sands.

Oil sludge is a mixture consisting of oil, water and sands. The treatment on oil sludge would recover much oil and water for reuse. Also it is an ideal solution to for the solids disposal. More oil and water recovered, more energy and resource could be saved. GN oil sludge treatment products mainly include decanter centrifuge, oil water separators and thermal desorption unit.

As many customers did not do waste management system before. To ensure GN Oil Water and Solids Separation Systems can applied for their applications, GN Solids Control specially designed a one-skid compact Oil Water and Solids Separation System for trial purpose. GN one-skid Oil Water Solids Separation System is in stock for sale. Clients can buy the small system as trial base to show to their clients their capacity to do the projects. For clients in China, they can choose to buy or rent the one-skid system.

If clients do not want to buy the one-skid compact Oil Water and Solids Separation, they can send their oil sludge or waste material to GN Solids Control. GN Solids Control can do the separation at GN factories and show clients the performance. After separation, GN Solids Control can do lab test and show the final output specs to the clients.

 

Last week, several packages of Mud Cleaning System were shipped to Chinese sea port. The mud cleaning systems will be sailed to North America to service their mud cleaning projects. The project the client will do is that, they collect various kinds of waste mud and waste water from rigs or from construction field. The client transports the waste mud and waste water by vacuum trucks, and treat them together to reduce the waste material, and recover solids and waste for reuse. It is high standard mud cleaning system to suit for North America standard.

The features of the mud cleaning system are that, its design is very compact for small foot print. Several mud separation shale shakers and dewatering centrifuge unit are equipped in the system for better separation performance.

1) First separation is by double deck coarse shale shaker to remove the big size solids from the waste mud and waste water. The top of the shale shaker is covered by metal boards to avoid mud leakage during shale shaker vibration.

2) After the double deck coarse shale shaker, next separation is taken by a single deck high G force shale shaker. The same design as the double deck shale shaker, the top of the single deck shale shaker is covered by metal boards to avoid mud leakage during shale shaker vibration.

3) A package of dewatering centrifuge unit.

As there are still many fine solids particles inside the recovered water from shale shakers, a dewater unit is used in the system for chemical dosing. It is used together with a high speed big bowl decanter centrifuge for fine solids separation.
The mud cleaning systems can recovery as more sands from the waste water. Regarding the waste mud from hydraulic excavation drilling, the recovery liquid phase is usable mud for reuse. The separated sands can be used for construction material.

This week, a full package of compact oily sludge separation system was finished from GN factory in Beijing China. The compact design fast movable oily sludge treatment system is purchased by a reputable Environmental Solutions Company from China domestic market.

There are 3-stage separation equipment included in the oily sludge treatment system.

1) There is a 2-panel small footprint shale shaker equipped in the system for coarse solids separation. The model is GNZS752. As mostly, the oily waste come out from different sources and it is mixture of different wastes. There may be big size solids in side. The big sides solids may block or even broken the centrifuges. The small size shale shaker is used to remove the possible big size solids in the sludge.

2) There are 2 centrifuges in the oily sludge treatment system. The first centrifuge we call it decanter centrifuge. The decanter centrifuge model is GNLW224, it is a 2-phase separation centrifuge. The 2-phase decanter centrifuge is help to remove solids or soil from liquid mixture. The 9 inch centrifuge is a min size decanter centrifuge. The bowl diameter is only 9 inch, but the bowl length and diameter ration is up to 4. The longer ration can help to get cleaner liquid. It is the smallest centrifuge from GN Solids Control for industry separation.

3) The second centrifuge inside the oily sludge treatment system is disc centrifuge. It is also called 3-phase centrifuge. As the name mean, the disc centrifuge can separation oil, water and soil.

Many people may wonder: in case the disc centrifuge can separate and get oil, water and soil. While you add 2-phase decanter centrifuge inside the system? Really, the 2-phase decanter centrifuge is surely not to increase the cost. The disc centrifuge can only allow liquid mixture with liquid content less than 3%. Otherwise, it will damage the centrifuge. While the decanter centrifuge can allow liquid with solids content up to 15% ~ 20%. Decanter centrifuge is a necessary as pre-separation before disc centrifuge.

GN Solids Control was firstly known as a manufacturer of drilling fluids recycling equipment that are used to remove the solids in the drilling fluids, thus the drilling fluids could be reused. In China, there are several this kinds of manufacturers who can fabricate the traditional solids control equipment like shale shaker, mud cleaner, agitator and mud tanks.
Keeping improving is one of GN’s features. In the past few years, GN has invested a lot on upgrading the traditional solids control equipment to make it easier for operation. Moreover, GN has developed many new products that keep GN a leader in the solids control industry. In the year of 2016, GN released the system for hydrocarbon recovery. It is an effective solution to treat the waste oily sludge.

Oil-sludge-Recovery-System

Oil Sludge Recovery

GN’s hydrocarbon recovery system is a three phase separation system. It includes primary coarse solids separation shaker package, fine solids separation centrifuge package and oil & water separation package.
The working principle of GN hydrocarbon recovery system is to remove the solid particles step by step from the oil sludge. The high G force drying shaker unit is equipment with hot water spraying system for better washing performance, this process will remove most of the oil content on the solids.
Decanter centrifuge is equipped with chemical dosing system for fine solids separation after demulsification process. GN’s dosing system could be used in all kinds of dewatering system for ultra fine solids separation.
The liquid discharged from the decanter centrifuge flows into the oil water separator package. Here an inclined plate clarifier is installed for further removing the remaining silt in the liquid for clarifying the oil and water mixer. Then the liquid mixer flows into the micro bubble separation for oil and water separating.
GN’s hydrocarbon recovery system makes GN a real separation solution provider other than a solids control equipment manufacturer. GN would like to communicate with all the clients on this hydrocarbon recovery system.

As per the feedback from the customers who are engaging in the pilling business, GN designed and perfect the economic mud recycling system specially for the drilling mud cleaning application in piling project. On the consideration of limited location area of the piling project job site, GN’s piling mud recycling system is designed with a very compact structure but with full functions for drilling mud recycling.

GN economic desander unit (2)

De-sanding Unit

Below is the standard configuration of piling mud recycling system with treating capacity of 500GPM.
Model: GNMS500-D
Flow Rate: 500 gallons per minute
Cyclone Specs.: 1 pc 10” de-sanding cyclone made from 100% polyurethane
Screen Specs.: Shale shaker with up and down 2 layers screen with total screen area of 2.23m2
Feeding Pump: Mechanical seal type centrifuge pump of 50 HP used to feed mud to the de-sanding cyclone
Cut Point: Solids Removable down to 40 microns
Catching Tank: Under located catching tank for mud storage. The tank is equipped with lighting system and ladders for easy operation.
Electrical Control System: Explosion, water, and dusty proof electrical control panel with SIEMENS or Schneider components

GN also has the model of GNMS200-D and GNMS1000-D available and the treating capacity is separately 200GPM and 1000 GPM.
The advantage of this type mud recycling system is cost competitive. By connecting with storage tank and mud mixing hopper, this de-sanding unit could also be used in other kind of project like the small horizontal directional drilling, micro tunneling and water well drilling.

GN economic desander unit (1)

Economic Mud Recycling Unit Layout

GN recommends the layout of this economic mud recycling system:
1) Mud Pit
2) Submersible Slurry Pump
3) Mud Recycling System
4) Storage Tank
5) Outlet Pipe
6) Jet Mud Mixer.
GN Solids Control also offers submersible slurry pump, mud storage tank, as well as jet mud mixer per request.
GN is now on promoting this type economic mud recycling system, for more information, you may sent inquiry to sales@gnsolidscontrol.com

There is a cleaning Tank for GN500 GPM mud recycling system for Saudi Arabia HDD rig, the tank is divided into 3 compartment, 1# Shaker compartment, 2# De-sander compartment, 3# Mixing compartment.

Detailed process features of GN500 GPM mud recycling system for Saudi Arabia HDD rig

1) Continues feeding of dirty slurry from mud pit to Shale Shaker.

The GN100YZ100A-30 Submersible slurry pump feed slurry from mud pit to GNZS703E Shale Shaker at capacity of 528 GPM.Slurry pump is made from Cr26 Abrasion resistant Alloy which allow users to pump high solids content fluids.

GN500 GPM mud recycling system for HDD

GN500 GPM mud recycling system for HDD

2) Pre-screening of the returned mud using GNZS703E Shale Shaker for the GN500 GPM mud recycling system for Saudi Arabia HDD rig.

This shaker can handle a throughput of more than 528 USgpm and is designed to remove particles down to 250 microns(60mesh) @ 7G force linear motion GNZS703E Shale Shaker with big screen area (2.63 ㎡)

3) Secondary and third cleaning of the returned mud using a GNZJ703E (10″×1 + 4″ × 8) Mud Cleaner.

1# GNSB5×4A-13J Centrifugal pump feed mud from 1# Shaker compartment to feed 10″×1 de-sander cones, where the particles larger than 50 microns are separated out by centrifugal force from desander cone nipple, and get down to GNZJ703E mud cleaner bottom shaker with a finer screen (150/200mesh) which again produces a virtually dry product. Major fluids with particle size less then 50microns goes to 2# De-sander compartment. This is the 2nd phase solids control of the GN500 GPM mud recycling system for Saudi Arabia HDD rig.

2# GNSB5×4A-13J Centrifugal pump suck mud from 2# desander compartment and feed to 4″x8 desilter cones. Where the particles larger then 16microns are separated out by centrifugal force from desilter cone nipple, and get down to GNZJ703E mud cleaner bottom shaker with a finer screen, which again produces a virtually dry product. Major fluids with particle size less than 16 microns goes to 3# Mixing compartment. This is the 3rd phase solids control of the GN500 GPM mud recycling system for Saudi Arabia HDD rig.

4) Integral mixing system using GNSLS35A-300 Jet Mud mixer for GN500 GPM mud recycling system for Saudi Arabia HDD rig.

This GN500 GPM mud recycling system for Saudi Arabia HDD rig allows fresh mud to be prepared very rapidly from bentonite powder. One of the 2 pumps on tank end is dedicated to this function allowing continuous mixing or recirculation as required.

GN500 GPM mud recycling system for HDD

GN500 GPM mud recycling system for HDD

5) Integral charge pumps to supply clean mud back to the drilling rig.

The mixing pump above is a dual function pump, on mixing pump outlet with a T pipe can be controlled by a valve to provide a continuous supply of clean mud from 3# mixing compartment under pressure to the high pressure mud pump, avoiding problems of starvation and cavitations which can rapidly cause damage.

GN Solids Control Co., Ltd is manufactures complete line of mud recycling and mixing system for oil & gas drilling, for trenchless, waster well drilling, mining, piling and micro tunneling industries. GN can offer mud recycling system with capacity vary from 150 GPM to 1000 GPM (50~240 m3 / hour).

GND series mud recycling system

GND series mud recycling unit is simplified recycling system, usually, also been refer as desander machine, desander plant for piling industry.

GND series mud system for piling industry is mainly complete with Vermeer, Ditch Witch, German T & T. GND series mud system have widely used in Australia, America, Middle east and South Asia, like Burma, Pakistan, Malaysia, Thailand, Vietnam, Oman, UAE, Saudi Arab…GND-120 mud recycling system for piling

GND-120 mud recycling system for piling

Recently, 2 sets GND-120 piling mud recycling system have been shipped to South Asia market. The total system is compact footprint and easy for movement. Customers only need to fall down the control panel (Explosion proof), and then the total system can be shipped as a package.

Parameters of GND-120 mud recycling system for piling

Total capacity: 120m³/h  

System dimension: 2.1×1.5×2.7m

Total weight: 2700kg                                                                                                                 

Total power: 38.5kw

Separation point: 50 microns

Mud cleaner: GNZJ752D-1S (Double deck shale shaker GNZS752D)

mud recycling system for piling

mud recycling system for piling

All GN mud recycling have been test with water before delivery. Or test with barite per customers’ special requirement.

GN can also offer customized system. For more information of GN recycling system. You can contact GN freely. Or visit GN hear office in China Beijing, Brach office in America or Australia.

Containerized oily sludge separation system is designed and made by China top manufacturing: GN Solids Control. It is widely used in drilling waste management field. Its compatct design and all equipment and collection tank mounted in the container, easy for movement.Containerized system for oily sludge separation

Equipment included in Containerized oily sludge separation system for waste management:

1) GNLW363VFD centrifuge with PLC control panel

2) NEMO pump German brand NETZSCH

3) GNCD930 vertical cuttings dryer. (OOC: 5%)

4) Collection tank to collect clean fluids from vetical cuttings dryer and transfer to decanter centrifuge via NEMO pump

5) Container with temperature protectionContainerized oily sludge separation system

Advantages of Containerized oily sludge separation system:

1) All equipment mounted in the same container, easy for movement

2) 40ft container equiped temerature protection, suitable for lower temperature area

There are many advantages of the containerized system for oily sludge separation, but there still disadvantages.

As all equipment mounted in a 40ft container, space tight. It is not convenience for maintenance. User need to move out equipment for maintenance or for changing screen basket for vertical cuttings dryer (vertix G).

GN Solids Control is the only 1 China manufacturer who can make drilling waste management equipment. All GN euqipment design and made per API standard. For any inquire or question, you can contact Gn group directly for solution.

 

 

About microtunneling

Microtunnelling is a nature method of construction using pipe jacking. In many countries and areas, it also defined as a “Trenchless Construction Method”.

Slurry separation system for microtunneling

Microtunnelling project usually takes in urban district. In this case mud system matched for microtunneling request compact and a very small footprint recirculation slurry system with different capacity. This kind of mud system usually called as “slurry separation system”.

TBM Slurry Separation System In Oman

Features of slurry separation system

1) Steel Frame Screen with large open microns usually used.

As the solids usually bigger than oil and gas drilling, solids content higher and many bigger size sands / solids. And it is big diameter well with smaller depth, no higher request for mud quality. It is no need to separate very fine. And steel frame have a longer lifetime for microtunneling.

2) Compact system with smaller footprint: all separation equipment combined together, a storage tank and a mixing tank.

Usually, GN only offer separation plant and equipment for mixing part. And recommend users to build storage / mixing tank locally to save cost.

3) Big size hydro cyclones for large capacity. And it is not easy to be blocked.