Author: gnadmin

Mud Recycling Unit for overseas Trenchless Projects

Recently several sets of mud recycling system are ready for shipment to overseas trenchless projects.


The trenchless mud recycling system is a specialized equipment setup used in horizontal directional drilling (HDD) and other trenchless technologies. Its primary function is to clean drilling fluids (commonly known as mud) during the drilling process. The purpose is to use the trenchless mud recycling system is that the recycling drilling fluids can be used to lubricate the drill bit, stabilize the borehole, and carry cuttings back to the surface. These fluids need to be constantly circulated and maintained to ensure efficient drilling and environmental compliance.


Environmental Benefits: Recycling systems help minimize waste and reduce the environmental impact of HDD operations by reusing drilling fluids.
Operational Efficiency: By continuously recycling and maintaining drilling fluids, these systems contribute to the efficiency of trenchless drilling operations, reducing downtime associated with replacing fluids and improving overall productivity.
The basic configuration of a mud recycling system is consists of primary shale shaker, mud cleaner, feeding pump, centrifugal pump, mud agitator, decanter centrifuge, mud tank, etc.


The compact design mud cleaning unit consists of double deck shale shaker with hydrocyclones, the bottom layer shaker screen works as primary shale shaker to separate coarse solids from the drilling mud, the clean fluids dropped into the intermediate tank, the feeding pump feed the mud to hydrocyclones for second phase cleaning, the top layer shaker screen as mud cleaning drying screen to recycle more fluids. The clean fluids flow to client’s storage tank or mixing tank to prepare for new drilling fluids.
The hydrocyclone size is for optional for different applications, for TBM and Pilings, 10 inch, 12 inch or 20 inch can be selected; for HDD applications, 10 inch, 4 inch can be used. For more information, pls contact with GN solids sales.

 

1500HP Drilling Rig Solids Control System for Africa Project

Recently one package of 1500HP drilling rig solids control system are ready for delivery to Africa project. The technical configuration is as below:


1. Solids control shale shaker GNZS594J-SHBJ, 3 units, each unit with 4 panel shaker screen which is with composite material frame and stainless steel wire mesh 2 or 3 layers by 4 sides pretension.
2. Centrifugal degasser GNZCQ-1200, 1 unit
3. Desander unit GNZJ591J-M2SF, 1 unit , with 2 ea of 10 inch desander cone, the general treating capacity is up to 1000gpm of drilling fluids.
4. Desilter unit GNZJ591J-M16NF, 1 unit, with 16 ea of 4 inch desilter cone, the total treating capacity is up to 1500gpm of drilling mud.


5. Centrifugal pump in different size for different applications, including 5 units of GNSB8x6-14J (75KW) centrifugal pump, 3 units of GNSB8x6-13J (55KW) centrifugal pump, 5 units of GNSB4x3-12J (15KW) centrifugal pump and shear pump GNJBQ6*5-750 (75KW), 3 units of mixing hopper (H)JM-200, these centrifugal pump can be used as transfer pump, trip pump, mixing pump, charging pump, feeding pump.


6. High speed decanter centrifuge GNLW363D-GP, 1 unit, to separate the fine solids from drilling fluids and keep it balancing. The centrifuge is 14 inch bowl diameter with 50 inch bowl length, the max speed is up to 3600rpm and the max G force is 3063G, the separation cut point is 2~ 5microns, if need to separate more fine solids, chemical dosing unit can be used together with the centrifuge by adding chemicals in the inlet tube.
7. Mud agitators installed on the mud tank for drilling mud agitating and mixing, including 7 units of 20HP mud agitator, 2 units of 15HP mud agitator, 1 unit of 7.5HP mud agitator.
8, Customized mud tank system, including active tank, intermediate tank, suction tank, mixing tank,, reserve tank, trip tank,etc.

Fully Hydraulic Drive Decanter Centrifuge GNLW363D-FHD for Asia Customer

Recently 6 sets of fully hydraulic drive decanter centrifuge GNLW363D-FHD are ready for delivery for Asia customer.
The fully hydraulic drive decanter centrifuge model is GNLW363D-FHD, the technical configuration is as below:


Bowl size and bowl length is 14 inch by 50 inch, the max speed is up to 3600rpm, the max capacity is up to 200gpm, the main motor power is 45KW, the driving system is VISCOTHERM Fully Hydraulic Drive system. As a leading solids control decanter centrifuge manufacturer in China, GN solids control can produce different size and different type decanter centrifuge, as VFD decanter centrifuge, high speed decanter centrifuge, middle speed decanter centrifuge, Fully Hydraulic drive decanter centrifuge, 3 phase decanter centrifuge, 3 phase disc separator, etc. Especially for the FHD centrifuge, both of the bowl and scroll are drived by hydraulic motor ROTODIFF and hydraulic pump unit by two hydraulic oil circuits. The advantages to use the FHD decanter centrifuge is that it can be used in high temperature ambient for heavy duty with differential speed, compared with the VFD decanter centrifuge, the FHD centrifuge can work continuously without influence of the hot weather.


The features of GN decanter centrifuge:
1. The bowl material is made of duplex stainless steel 2304from centrifugal casting
2. The screw material is stainless steel SS304
3. Screw protection is interchangeable tungsten carbide tiles
4. The solids discharge port and mud distribution port is protected by tungsten carbide inserts
5. The bearing is SKF brand
6. The FHD brand is VISTOTHERM fully hydraulic drive system
7. The electric control is PLC smart control and the main components are ABB, Siemens, etc. famous brand
The fully hydraulic drive decanter centrifuge will be installed on the telescopic skid, feeding by variable speed screw pump, for more information of FHD centrifuge, pls contact with GN solids control.

Diamond Core Drilling Centrifuge Unit for Overseas Client

4 sets of diamond core drilling centrifuge unit are ready for delivery to overseas client, they will be used for water recovery of the diamond core drilling mud, the purpose to use the centrifuge is to reduce water consumption and reduce the influence on the environment during the core drilling process, this will save money for the client and save water volume which is limited in remote area.


Normally we will use 9 inch diameter mini decanter centrifuge as the diamond core drilling centrifuge, GNLW223D, GNLW223D-VFD, GNLW224-VFD is the most popular model for this application, the centrifuge bowl diameter is 9 inch, the centrifuge bowl length is 26.4 inch or 36.4 inch, the bowl length to diameter ratio is 3 or 4. The max speed is up to 5000rpm, the max G force is up to 3200G, the max capacity is maximum 130 L/min. The main motor is 15HP, the back drive motor is 7.5HP. The separation cut point is 2~5 microns, with flocculants, its dewatering capacity is 1~2 m3/h. High speed drive control panel and variable frequency drive control panel is available for option. So except for diamond core drilling mud cleaning, the 9 inch bowl decanter centrifuge can be also used for oil sludge treatment unit, as the primary treatment centrifuge for solids liquid separation.


As one of the professional decanter centrifuge manufacturer in China, except for 9 inch decanter centrifuge, GN solids control also produce 14 inch bowl, 18 inch bowl, 22 inch bowl, 30 inch bowl diameter decanter centrifuge, with VFD system or FHD system. They have been widely used for drilling fluids cleaning, oil sludge treatment system, drilling waste treatment system, dewatering system, industrial waste treatment and other solids liquid separation applications. If you need a proper decanter centrifuge, pls contact with GN solids control.

Automatic tank cleaning system

GN automatic tank cleaning system is a set of automatic tank cleaning system designed and manufactured customized according to client’s requirement. It is a closed-loop system used for continuous cleaning of mud tanks, oil tanks, and chemical tanks.


This automatic tank cleaning system supplies clean water to the vertical pipeline pump installed next to the mud tank, and the industrial hose pump feed the sewage back to the tank cleaning system for purification. The clean water is supplied to the vertical pipeline pump for continued circulation, thereby minimizing water consumption and labor costs.
The processing capacity of this system is up to 30m3/h which can operate continuously. It consists of three parts: mud tank, walkway guardrail, manifold assembly. The inlet is equipped with GN made filter, which can effectively avoid the damage caused by large particle solids to the hose pump, thereby improving system stability and service life.
The working principal of GN automatic tank cleaning system is as below:
Firstly, the tank bottom mud is sucked by the pump through the filter by the industrial hose pump, then discharged into the inclined plate clarifier through the static mixer in the discharge manifold of the hose pump. Through the dosing pump, the chemicals are sent into the static mixer and fully mixed with the mud.
Secondly the mixed mud is settled in the inclined plate clarifier, the solid is extracted by the diaphragm pump and discharged into the skip; The liquid overflows into the mud tank from the outlet of the inclined plate clarifier, pumped out by the vertical high-pressure pump, and discharged into the automatic spraying device for cleaning. Then, it is sucked back into the purification system by the industrial hose pump for further processing.
If you need automatic tank cleaning system, pls contact with GN solids control.