Piling Slurry Treatment

The business of today’s GN has been divided mainly into 2 scopes, one is the normal drilling mud recycling, and the other is the waste management including the waste coming from petroleum related and other separation industries. This blog is mainly talking on the drilling mud recycling system that used in non oil drilling industry.
In oil drilling, the drilling depth and safety regulation request large drilling mud storage and more solids control equipment. Thus, the mud recycling system is always equipped with degasser unit and large volume mud tanks.

hdd-mud-recycling-system

HDD Mud Recycling System

Comparing with the mud recycling for oil industry, the unit for non oil drilling is more compact and less equipment needed.

  • Trenchless/No Dig HDD project – The mud recycling system used in this type drilling is matching with a No dig rig. In some project for long distance pipeline and cables laying underground, it is inconvenient to dig an open groove on the ground as that will interrupt the normal traffic. The trenchless is an ideal choice. The mud recycling system for this project is always consisting of 3 stages separation as shale shaker unit, de-sanding and de-silting cyclone.
  • Piling is the main method to install the bridge supporting pillar. A de-sanding unit with a small tank would be enough to remove out the coarse solids from the drilling fluids. The de-sanding unit is a composition of de-sander cyclone and shaker unit that can separate out the solids with size of 40-70 microns. Piling does not request very clean mud; less equipment involved makes the recycling unit for piling is very compact.
  • GN also can manufacture the mud recycling system for tunneling project. For micron tunneling, GN has model available with capacity of 120m3/h, 240m3/h and 500m3/h. For large flow rate request, GN has the mud plant GNMS -3600M with treating capacity of 3600m3/H.
tbm-slurry-separation-plant

Tunneling Mud De-sanding Plant

Besides, GN’s mud recycling system can also be used in water well drilling, coal bed methane exploration, dredge slurry separation and the mining flushing waster cleaning process.

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

GN  Solids Control designed  mud recycling system with desander for the Civil Engineering of Foundation Bored Pile machine. After recycling and cleaning the bentonite of you bored pile project, it saves you cost of mixing more bentonite as well as saves more cost for the disposal of the bentonite.

General Specifaction of GND-120 Bentonite Mud Rycling unit for Pile Foundation.

Handling Capacity: 120 m³/h    

bentonite mud reycling

Bentonite mud reycling

Equipment Weight:2700KG

Equipment Dimension:2.1×2.5×2.7m

Total Power require:38.5Kw

GN Also have the 60 m³/h, 240 m³/h size avaible for your foundation bord pile bentonite mu reycling.

GN Desander for Pile Bentonite mud Recycling including

  • Model:GNZS703-1S Desander Bottom Deck Screen Area: 2.6㎡  Recommended screen:0.30-0.50mm.Top Deck Screen Area:2.0 ㎡     Recommended screen 100-120 mesh.
  •  Desander:  1 each 10 inch desander for separation up to 50 microns solids.
  • Vibration Motors: 2×1.72Kw Italy Oli Brand Motors.
  •   The Shaker Deck screen support is Stainless Steel

Slurry Pump Specification

Model:GNZS6x5-12J Pump inlet:6inch  Outlet: 5inch, Motor Size: 37Kw  Capacity: 150m³  Lift:30m

Working procedure of  Pile Bentonite recycling Desander

1)  A pit slurry pump suck fluids from the foundation slurry pit and feed to the GNZS703D-1S Desander Bottom Shaker.

2)  The first phase cleaning is processed by the bottom shaker deck of GNZS703D Shaker, and the cleaning fluids drops down to the mud tank.The solids up to 0.5mm will be separated out.

3)  A GNSB6x5-12J Slurry pump suck Bentonite fluids from the mud tank, and feed to the ten inch desander cyclone, and solids drops down to the up deck shaker for drying, and the clean fluids goes to the second compartment of the mud tank.The solids up to 50 microns will be separated out.

4)  The outlet of the second compartment of the mud tank is clean fluids can go to clean fluids pit for reuse for your foundation pile project.

Professional at solids liquids separation, now GN road to the piling field. In Desander for Piling construction, we introduce the piling piling desanderslurry recycle and the process of the piling slurry treatment. Now we are going to talk about the application and the desander for piling in the piling construction system.

Piling Introduction

Foundations relying on driven piles often have groups of piles connected by a pile cap (a large concrete block into which the heads of the piles are embedded) to distribute loads which are larger than one pile can bear. Pile caps and isolated piles are typically connected with grade beams to tie the foundation elements together;