Tag: screw conveyor

10 Sets Big Bowl Mud Centrifuge and 5 Vertical Cuttings Dryer for Africa Project

Recently, GN Solids Control completed a large order and is preparing it for shipment to an African client. The shipment includes 10 sets of GNLW453D-VFD big bowl mud decanter centrifuges and telescopic skid, 5 sets of GNCD930G vertical cuttings dryer systems, 10 sets of feeding pumps, 10 sets of screw conveyors, and other equipments. All of these units have been tested, inspected, and packed, ready for delivery.

The GNLW453D-VFD is a high capacity decanter centrifuge designed for drilling mud and waste management. Its big bowl design improves separation efficiency and processing capacity, while the VFD control system allows operators to adjust bowl speed and differential speed according to actual mud conditions. This helps recover more valuable drilling fluid, reduce waste volume, and improve overall solids control performance. The matching skid ensured stable operation and convenient installation on site.

The GNCD930G vertical cuttings dryer is widely used for treating oil based and synthetic based drilling cuttings. It recovers valuable drilling fluid from cuttings and reduces the oil content in discharged solids, helping clients meet environmental requirements and lower disposal costs. The 5 vertical cuttings dryer systems will work together with the decanter centrifuges to form an efficient drilling waste management process.

In addition, the 10ea feeding pumps and 10ea screw conveyors are included to ensure smooth material transfer throughout the system. The pumps feed drilling mud to the centrifuges, while the screw conveyors transport solids between different processing units. This complete package provides a reliable and integrated solution for drilling waste treatment.

Before shipment, each unit was carefully inspected and tested to ensure quality and performance. The equipment is now being prepared for long-distance transportation to Africa. Once installed, the system will help the client improve drilling fluid recovery, reduce waste, and enhance operational efficiency.

We look forward to supporting the successful operation of this project in Africa.

Solids Control equipments ready for delivery

One batch of solids control equipments are ready for delivery for our international client, this is the third time repeat order from the same client. The solids control equipments purchased is for their solids control service contract. The equipments list including:
1. Decanter centrifuge, GN solids control can produce both fixed speed decanter centrifuge and VFD decanter centrifuge, the most popular model is 14 inch bowl decanter centrifuge. It can be used for both solids control drilling fluids treatment and drilling waste treatment system.


2. Vertical cutting dryer, it can be used for oil based drilling cuttings treatment, after treatment, the oil on the cuttings could be reach below 5%.
3. Screw pump, we have fixed speed screw pump and variable speed screw pump, it can be used as decanter centrifuge feeding pump and vertical cuttings dryer flushing pump.


4. Screw conveyor, we have fixed speed screw conveyor and variable speed screw conveyor, it can be used to collect the drilling cuttings from solids control shale shaker, and transfer to vertical cuttings dryer feeding port.
5. Vacuum pump, it can be used to transfer drilling waste cuttings, also it can be used to collect spilled drilling waste from the rig platform.
6. High G drying shaker, it can be used to treat water based drilling cuttings, and it can be used to reduce the solids content from the drilling waste, so the treating capacity of the decanter centrifuge can be improved.
All equipment has undergone factory acceptance testing (FAT) and is packed in export-grade, weatherproof packaging to ensure safe ocean freight transit. Delivery is scheduled for next week, with a company technician available for remote or on-site commissioning assistance as part of the service contract agreement.
If you need good quality good performance solids control equipments, pls contact with GN solids control.

GN Decanter Centrifuge and Cuttings Dryer for Africa Drilling Company

One set of GN decanter centrifuge and vertical cuttings dryer are using for Africa drilling company. The equipments list including:
2 units of decanter centrifuge，model GNLW363D-VFD
1 unit of vertical cuttings dryer，model GNCD930G
Matched with screw conveyor, centrifuge feeding pump and vertical cuttings dryer flushing pump.


The screw conveyor GN produced including 10 inch, 12 inch, 14 inch, 16 inch and 18 inch diameter for option, each section standard length is 12 ft, we can use different quantity sections as per client’s requirement of transfer length, such as 12 ft, 24 ft, 36 ft, 48 ft, 2 sections are connected by pin shaft hanger. The screw conveyor can be fixed speed or variable speed( manually speed adjustable) to control the feeding rate. The screw propeller material is High Chrome Alloy Steel for longer working life.


According to the installation position and function of the screw conveyor, there are auger system for primary shale shaker discharge solids collection, desander desilter discharged solids collection, feeding to vertical cuttings dryer feed hopper, solids discharge auger for vertical cuttings dryer, solids discharge auger for decanter centrifuge, etc. The protection cover on the U type reinforcing beam could be closed steel plate or steel grating for option.
Additional safety protection of the screw conveyor:
1) Pull chord emergency stop with wire rope to be provided along the length of Augur for Emergency stop；
2) Audio / visual alarm system on the auger control panel which will be automatically activated once the power is switched on followed by the actual auger startup with a safety delay time. Audio / visual alarm system to be in the OFF mode after some time once the auger starts operation.


If you need decanter centrifuge, vertical cuttings dryer, feeding pump, screw conveyor, pls contact with GN solids control.

16 Sets Drilling Mud Centrifuge and Vertical Cuttings Dryer for overseas oilfield service company

Recently 16 sets of drilling mud centrifuge and vertical cuttings dryer are ready for delivery to overseas oilfield service company.
One set of drilling mud centrifuge package including 1 unit of decanter centrifuge, telescopic skid and 1ea decanter centrifuge feeding pump. GNLW363D decanter centrifuge is the most popular high speed decanter centrifuge used for drilling mud treatment and drilling cuttings treatment. The bowl diameter is 14 inch, the bowl length is 50 inch, the designed treating capacity is 200gpm, and typical capacity is 132 gpm. The max bowl speed is 3900rpm, and typical bowl speed is 3200rpm. The max G force is 3063G, typical G force is 2062G. The separation cut point is 2 ~5 microns.

One set of vertical cuttings dryer package including 1 unit of vertical cuttings dryer, cuttings dryer skid, flushing pump and solids discharge system. The most popular vertical cuttings dryer model is GNCD930G, the treating capacity is 30 ~50 tons per hour. For the oil based drilling cuttings fresh collected from primary solids control shale shaker, the treated oil content in the cuttings is less than 5%. If the client needs less oil content in the cuttings, the solids discharged can be sent to Thermal Desorption Unit. The screen diameter is 930mm, we have 0.25mm, 0.35mm, 0.5mm three type screen opening for option. The rotation speed is 900rpm, G force is 420G, oil tank capacity is 48L. The main motor is 55KW, the oil pump motor 0.55KW.The standard vertical cuttings dryer with solids discharge collection hopper, as client’s requirement, GN designed customized solids discharge system with vibration motor for faster solids discharge.


Except for decanter centrifuge package and vertical cuttings dryer package, GN solids control also produce different size screw conveyor, high G drying shaker and complete line of solids control equipments and shaker screens.

Two Sets GN Container-type Cuttings Dryer Systems for Overseas Client

2 sets of containerized vertical cuttings dryer system are ready for shipment to overseas client. The technical configuration is as below:
1. Vertical cuttings dryer GNCD930G-GP, The rotor flights is hard facing to HRC65 for longer working life, the flights and rotor assembly is individually balanced, which is convenient for future replacement, individual oil lubrication system with automatic alarm for pressure limit.


2. Intermediate fluids collection box 1.5x2x1.2m, the fluids can be transferred to decanter centrifuge for further separation of the fine solids, the final treated fluids can be reused for drilling rig or used to prepare for new drilling fluids. The fluids can be also sent to final disposal treatment by adding chemicals to get pure water and dry solids for final disposal.


3. Screw pump as flushing pump of vertical cuttings dryer, Netzsch brand pump with Germany Brand Nord gearbox, fluids touch parts are made of Wear-resisting alloy material.


4. All of the equipments are installed inside standard container with customized decoration, such as insulation design for working in cold environment, doors and windows, open holes for screw conveyor, lightings, etc. The benefits for the customized containerized cuttings dryer system including: convenient transportation, keep the system warm in winter cold temperature, convenient operation and maintenance.


5. Screw conveyor to collect the discharged solids from the vertical cuttings dryer and transfer the cuttings box automatically, with proper auger support. GN screw conveyor with standard length for each section 12 ft, the client can select proposal sections for different transfer length as 12 ft, 24 ft, 36 ft, 48 ft. GN solids control can produce different size screw conveyor including 10 inch, 12 inch, 14 inch, 16 inch, 18 inch diameter screw conveyor with different flow rate and drived motor. We have fixed speed and variable speed augers for option.