Category: screw conveyor

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.

Trailer mounted mud tank and screw conveyor for Kuwait Client

Recently one batch of trailer mounted mud tanks and screw conveyors are delivered to our Kuwait client.


As one of the mud tank system manufacturer in China, GN solids control can design and produce customized mud tanks and complete line of drilling rig solids control system according to our client’s requirement. Except for trailer mounted mud tank, we can also produce skid mounted mud tank, track mounted mud tank, containerized mud tank, liquid mud plant, also we can design and produce complete oil & gas drilling rig solids control system, HDD & CBM mud recycling system, TBM &Piling slurry separation unit, drilling waste management system for OBM and WBM, oil sludge separation system.


We have professional technical engineers team for 3D Simulation Design of mud tank systems to present technical solutions to the customers intuitively for convenient technical communication, also we can share design modules with users to facilitate the configuration of the overall drilling rig.


The U-type screw conveyor produced by GN solids control is with standard each section 12 feet, we can produce 10 inch ,12 inch, 14 inch, 16 inch and 18 inch screw diameter, the top cover is optional with steel gratings and closed plate according to client’s requirement, with reinforcing beam for gearmotor and auger body, for long lifetime. With additional safety features: Full Length Safety Grab Wires along the auger; The local control panel including the control for Grap wire switch; Audio / visual alarm system on auger control panel.
By introducing large CNC laser plate cutting machine, large CNC laser pipe and profile cutting machine,mud tank corrugated plate automatic forming machine,CNC bending machine and robotic welding production line, GN solids control can produce high strength, good performance mud tanks with lower production cost. Welcome to visit GN facility to check our production line and mud tanks.

Screw Conveyor and Solids Control Equipment for Middle East Drilling Company

One batch of screw conveyor and solids control equipments are ready for shipment to Middle East Drilling Company. The equipments list including screw conveyor, shale shaker and mud cleaner as below:


Screw conveyor GNSC14-48, it is U type screw conveyor for continuous conveying without flexible traction. It is used to collect the drilling cuttings and transfer the drilling cuttings to drilling waste treatment system. The screw conveyor can be covered with closed steel plate or steel grating plate for option. The transfer length can be optional with different quantity sections, each section is 12ft, the length can be 12ft, 24ft, 36ft and 48ft. The screw blade are made of wear resistant and thicker manganese steel. The bearing is from NSK or FAG, the reinforced frame of the screw conveyor is with high strength to be suitable for horizontal or inclined installation.


Shale shaker GNZS594, it is a 4 panel linear motion shale shaker widely used for oil & gas drilling mud cleaning, the shaker screen is composite material frame shaker screen compliant with API RP13C standard. The single deck shale shaker is with reliable performance, easy operation and maintenance, cheaper operation cost.


Mud cleaner GNZS594-2S16N, the mud cleaner is a desander cone, desilter cone and bottom shale shaker 3 in 1 equipment, which is used after the primary shale shaker for the second phase and third phase cleaning of drilling mud. The bottom shale shaker model is same with the shale shaker GNZS594. The treating capacity is up to 1000gpm with 2ea of 10 or 12 inch desander cone, 16 ea of 4 inch desilter cone.
Except for shale shaker, mud cleaner and screw conveyor, GN also produce drilling mud decanter centrifuge and drilling waste treatment decanter centrifuge, vertical cuttings dryer and high G drying shaker,pls contact with GN solids control.