Month: November 2019

GN solids control will participate in the No Dig 2019 exhibition in New Delhi, welcome to meet us and study more information of our HDD mud recycling system. The exhibition information is as below:

Show Name: NO DIG INDIA 2019
Show time: 11 & 12 December 2019
Pavilion Name: Downtown District, Opposite Aerocity Metro Station, Aerocity,
Indira Gandhi International Airport, New Delhi, INDIA
Address: Aerocity, New Delhi ，International Conference & Exhibition
Stand No.: 25

Products: GN solids control is experienced to produce HDD mud recycling / cleaning / mixing system for HDD machine with different treating capacity, 150gpm, 200gpm, 350gpm, 400gpm, 500gpm, 600gpm, 800gpm, 1000 gpm. The storage capacity is customized according to client’s requirement with different mud tank dimension.
The major equipments of HDD mud recycling system including:
Centrifugal pump: GN centrifugal pump is interchangeable with world famous brand centrifugal pump and all the spare parts are 100% interchangeable. The pump casing and impeller is made of hard ductile iron alloy for better abrasion and longer working life. The centrifugal pump can be used as feeding pump of desander cone, desilter cone, also can be used as mixing pump, mud transfer pump.

Mixing hopper with mixing pump as bentonite mixing unit
Shale shaker: we have single deck shale shaker and dual deck shale shaker for different applications. We can provide composite material shaker screens from API 20 to API 325 as per client’s requirement.
Mud cleaner: we use different qty desilter cone for different treating capacity, to be installed on the single deck shale shaker and dual deck shale shaker. For 3 phase cleaning mud system, the first phase separation is shale shaker to separate coarse solids, the second phase separation is desander cone with cut point of 45 microns, the third phase separation is desilter cone with cut point of 25 microns.

This week GN Solids Control back from ADIPEC oil exhibition successfully, the show date is from Nov. 11th to Nov. 14th, 2019, the exhibition location is in Abu Dhabi, we have showed our popular products in the exhibition.

1) Decanter centrifuge: we can produce VFD decanter centrifuge and high speed decanter centrifuge, the VFD control panel is positive pressurized to comply with CNEX, ATEX or IEC EX explosion proof standard for zone 1 or zone 2 application, the main motor, back drive motor and pump motor drive are all from famous brand for reliable performance, the max speed of the 14 inch bowl decanter centrifuge is up to 3900 rpm, the normal speed is 3200 rpm, the max G force is 3063G, the normal G force is 2062G. The application is solids control, drilling waste management, dewatering unit, waste water treatment and all other fine solids separation.

2) Linear motion Shale shaker With ViST screen: we can produce 2 panel shale shaker, 3 panel shale shaker, 4 panel shale shaker, the ViST screen collection hopper is installed under the last screen, and connect with the vacuum unit, so that the fluids can stay in the screens for longer time and with better separation efficiency, the discharged solids can be much drier, so the drilling waste can be reduced a lot.

3) Shaker screens: we can produce OEM and replacement shaker screens with composite material frame for longer working life, the screen over API 60 all use 3 layers stainless steel wire mesh for reliable operation.
4) Sludge/ Solids vacuum pump is widely used to transfer the oil sludge, drilling waste, drilling fluids, dry sand, and all other kinds of sludge. It is a 100% air operated pump without electricity power supply.
For more information, pls contact with GN solids sales.

As one of the professional oil sludge separation system manufacturer in China, GN solids control can design and produce customized system for our clients working for oilfield environmental solution company, refinery tank bottom cleaning company, oil sludge treatment facility, oil waste water treatment company, oil waste disposal company, etc. Recently we have one set of oil sludge separation system ready for shipment, if you are interested in a solution for oil sludge treatment, pls contact with GN sales engineer to check the system.

A basic oil sludge separation system including: sludge transfer unit, pre-mixing modular, coarse solids separation modular, fine solids separation modular, 3 phase separation modular, chemical dosing unit, oil storage tank, water storage tank and other accessories. The most important modular is fine solids separation modular and 3 phase separation, the other modular might be replaced or removed depends on the client’s requirement and site situation.

A decanter centrifuge with positive pressurized VFD control panel is used to separate the fine solids from the oil / water mixture liquids, proper chemicals should be used in the process to improve the separation performance, the fine solids should be separated as much as possible so that the next step 3 phase centrifuge can separate the oil and water with good result, without blocking the equipment. Before feeding to the decanter centrifuge, no solids bigger than 1mm remained in the oil sludge should be ensured, it might influence the centrifuge working life and lead it to blocking easily.

The 3 phase centrifuge is to use to separate the oil from water, and oil will flow to a small tank, when the liquid level reach the setting limit, the oil pump will pump it to the storage tank automatically, which will be recovered by the refinery. The recovered water can be re-used in the circulation to be used for mixing, heating and flushing.

GN Solids Control can provide customized solution for oil sludge treatment unit, the core equipment is decanter centrifuge, which can separate the fine solids from the fluids mixture, the separation performance highly depends on the working and quality of the decanter centrifuge. When use the decanter centrifuge, the user should ensure that coarse solids are already separated out in case that the big solids will block the centrifuge bowl and the screw will be damaged easily because of high solids content.

The fluids discharged from decanter centrifuge will flow to a intermediate tank, then to be pumped to three phase centrifuge to separate oil and water. The recovery oil will be storage in a oil tank, the discharged water will be storage in the water tank or reused.
The working principal of decanter centrifuge for solids and liquid phase cleaning:
The oil sludge is feed to decanter centrifuge inlet pipe, and push to centrifuge bowl from screw fluids distribution port by centrifugal force. The oil sludge is rotating with the bowl under high speed up to 3900rpm, the normal working speed is 3200rpm. The centrifugal force is much more higher than gravity. With the great centrifugal force, a fluids ring is generated along with the bowl inside wall, because of the density difference for solids and liquids, the solids is heavier than liquids, which will generate bigger centrifugal force, so it is settled down to the fluids discharge port.
GN big bowl big volume decanter centrifuge GNLW554EP is the ideal model to treat oil sludge with higher treating capacity, the bowl diameter is 550mm, the bowl length is 2310mm, the higher L/D ratio 4.2 will treat the oil sludge better and cleaner. The Netzsch brand screw pump will be used to feed the different material to decanter centrifuge for stable working.