Author: gnadmin

GN Solids Control has been leading the development of centrifugal decanters from 9 inches to 30 inches with high quality materials and durability, with technology and precision in the assembly, receiving good comments from our end customers every day. The centrifugal decanter that GN has been activating the increasingly efficient process industry and maximizing resources to the full.

 

GN 9 inches Centrifuge

 

GN 30 inches Centrifuge

• Duplex stainless steel SS2304 and centrifugal casting are used to manufacturing rotating bowl, and shaft for big and small end cap. Duplex stainless steel is stronger and more resistant to abrasion and corrosion. This manufacturing process also avoid intergranular corrosion and incomplete release of stress.
• Screw blades are manufactured as a whole piece with CNC forming lathe, leading to high accuracy of the blades and higher solids discharge efficiency
• GN can customize screw with changing pitch for high transfer efficiency and dryer solids
• Optimized cone and pitch with BD plate to separate dewatering section and settling section, with deeper pond depth, longer dewatering section, dryer solids and clearer water. This also increase throughput speed.
• BD plate also helps solids discharge
• Less energy consumption is achieved with bigger pond depth, making decanter centrifuge use less energy. This also reduces turbidity flow of liquid to make separated water clearer, less wear on end blades which makes screw last longer
• Dual cone angle is available for specific high solid concentration materials. The rotating bowl have two cone angles, which reduced discharge resistance and increase treatment capability while maintaining clarify of water and dryness of solids
• Discharge ports are specially made tungsten carbide with excellent anti-abrasion capability and less fragility
• Easy opening mechanism is used so that one man can open the collection box cover for easy access of equipment
• Hydraulic removing mechanism is built into main shaft, which reduced pulling force by 90% when removing main bearings, this helps to ensure the safety of the bearing and high precision parts
• All the rotating parts are made with high accuracy CNC machine. After that 3 step dynamic balancing is done. One is the balancing of rotating assembly at 1800RPM, balancing at real high speed and the balancing of whole machine to ensure stable operation of the decanter centrifuge at high speed
• Both motors are placed in one end of the decanter centrifuges for more service space and spill of slurry to impact service life of motors
• Genuine SKF premium bearing is used for longer service life
• Oil lubrication is used to lower bearing temperature and clean bearings
• Real time monitoring of decanter centrifuge’s working condition for overload, bearing temperature, vibration, lubrication pressure, drive currents and screw torque and alarm will be triggered in case of unusual parameter values.

GN Horizontal Vibratory Centrifuge for Coarse Coal is used for dewatering of coarse coal in coal washing plants, and well-applied coal particle range is 0.5-5mm. The Horizontal Vibratory Centrifuge combines vibration and centrifugal force to realize high efficient dewatering performance of coarse coal particles. GN Horizontal Vibratory Centrifuge for Coarse Coal is a serialized product with the diameters of the screen basket varying from1000mm to 1600mm, which meets the processing capacity demand from 80t/h to 350t/h. After dewatering process by GN Horizontal Vibratory Centrifuge, the surface moisture on the coal is 5%-9%.

 

HORIZONTAL VIBRATORY CENTRIFUGE MODEL DESCRIPTION

• GN – Brand of GN Separation & Conveying
• VC- Vibratory Centrifuge
• 1000 – Screen basket large end diameter of Horizontal Vibratory Centrifuge

HORIZONTAL VIBRATORY CENTRIFUGE FEATURES

• High recovery and low crushing rate for the coarse coal, with low power consumption per ton.
• International famous brand vibration motor with convenient and easy amplitude adjustment
• Wear-resistant lining for the inlet and outlet to reduced wearing to the equipment
• All the wear-resistant parts are made of high wear-resistant materials to extend the service life
• Main bearing adopts international famous brands such as SKF, FAG or NSK
• Few wear parts and low maintenance cost
• Horizontal installation taking up small area and easy to assemble & disassemble
• Large processing capacity, and high upper limit of feed size
• High reliability, smooth operation, and low noise

As an international brand for manufacturing Horizontal Vibratory Centrifuge for Coarse Coal, GN Company has exported products to more than 60 countries and regions in the world, and set up branches in Houston, USA, and offices in Russia. GN Company can provide clients with high-quality products and professional service. Welcome to visit GN factories, and we would supply suitable Horizontal Vibratory Centrifuge for Coal Coal according to clients’ different requirement.

 

GN Solids utilize a custom designed and constructed Screw Conveyor (Auger) as part of drilling waste management system. The Auger is designed with 12 feet per section which makes it to be standard spare parts for exchange with each other. The screw material utilized by GN is abrasive material which lasts longer than our competitors. The Screw Conveyor (Auger) is designed to offer an efficient, low cost, cuttings transport system for offshore and onshore drilling installations. The screw conveyor are manufactured to the highest safety standards and are fitted with protective grating or cover to prevent foreign bodies entering the conveyor system, and to of fer enhanced safety for all personnel.

Besides the Screw Conveyor, GN Solids Control also have the cuttings transfer pump for the movement of the drilling cuttings.

GN Screw Conveyor Features

The screw flights are made of wear-resistant and thicker manganese steel. According to the customer’s selection requirements, the screw flights can also be sprayed with wear-resistant coating to prolong its service life.

The reinforced frame outside of the conveyor provides high strength to the complete conveyor, which makes it suitable for horizontal or inclined installation.

The bearing seats of the screw conveyor are made of aluminum casting, with fine workmanship and stable performance.

Bearings adopt international famous brand NSK or FAG, which runs steadily and has long service life.

The screw conveyor adopts the upper cover or steel grating to quickly switch or both types cover available at the same time for customer’s option. The steel grating adopts a quick flip opening and closing form, which is convenient for observation and maintenance.

Intermediate connectors adopt small resistance intermediate bearing body to make the product feeding smoothly, uniformly and quickly in the process of operation.

The inner bearing housing is equipped with self-lubricating HWS alloy hanging bearing core with grease filling nozzle to facilitate the injection of grease, which makes the self-lubricating HWS alloy hanging bearing core more fully lubricated and prolongs the service life.

The shell cover plate is equipped with rubber sealing gasket, which can effectively prevent dust leakage during operation.

Electrical motors and gearbox are from well-known brands at home and abroad to ensure long-term stability of machinery.

According to customer’s requirement, the pull-wire switch can be installed on the conveyor to realize safety protection, and customized connection form of inlet port and outlet port are available.

The GN Sludge vacuum pump is a type of high load and strong suction capacity vacuum transferring pump, it is also called solids transferring pump or cuttings transfer pump. The unique structure design enables it work in the very tough circumstance with less maintenance. It is ideal equipment for transferring sludge with high solid content up to 80% and high specific gravity material. Vacuum pump has below featured: high efficiency Venturi device can produce a vacuum up to 10 meters water column for material suction under high air flow circumstance. It is designed with compact structure, almost no wearing parts, for high density material transferring like cuttings and oily sludge etc.

 

Models: GNSP-10B & GNSP-20B

 

GNSP-40B

 

Features:

1、100% aerodynamic;

2. No power requirements, safe operation in hazardous areas, safe explosion-proof;
3. There are no rotating parts inside the cavity;
4. Vacuum can be maintained
5. Can produce 25” HG vacuum of mercury (up to 10m water column vacuum);
6. Single person operation;
7. easy to move;
8. Suction material, almost no wear parts.\
9. This equipment is a pressure equipment, and each user may need to apply for approval according to the situation in each country before it can be used.

 Conveying material category:

1. Drill cuttings from waste mud and vibrating screen, close to dry materials
2. Mud, tail slurry and oily sludge
3. Mud pit cleaning
4. Recycling of hazardous waste

5, sludge, bottom of the tank

6. Bilge cleaning of transport ships
7. Material handling of bulk tanks and silos
8. Sand, fine sand, and fracturing sand
9. Diatomite
10. Animal droppings
11. Furnace Ashes, flour
12. Almost known materials

Application areas:

The sludge / solid vacuum pump’s unique structural design enables it to operate in the most difficult environments and the maintenance rate is low. It can convey more than 80% of solid phase materials and high specific gravity materials at high speed. Widely used in mining, chemical, construction, offshore drilling platforms

Next, we show the materials that can be transferred in their different applications: Sludge waste and solid waste discharged from the Shale Shaker, Mud Cleaner and Decanter Centrifuge, drilling mud, recovery of hazardous waste, oil mud removed from the bottom of the tanks, coarse and fine sand, frac sand, animal waste and powdered material.
Video of the pump working ： http: //www.gnsolidscontrol.com/sludge-vacuum-pump

 

GN Solids Control is a top manufacturer of Horizontal Directional Drilling (HDD) Mud Equipment/HDD Mud Recycling System.GN drilling mud recycling system has been applied in many countries for HDD and CBM drilling operation. Especially popular in Australia, Indonesia, India etc. With GN Solids America branch and GN Australia Partner, GN provide mud recycling system service and spares from Beijing, Houston, and Brisbane.

Features of GN HDD CBM Mud Recycling Equipment

Complete line Mud System: GNMS-200GPM / GNMS-350GPM / GNMS-500 GPM / GNMS-1000GPM / GN1500 GPM Self-Contained Mud Recycling System.

Cost Effective equipment integration: Complete drilling mud equipment from a single source-GN Solids Control Factory.

Fast moved compact system: small footprint design with fast connection for removable parts and most parts fixed while traveling meet transport regulation.

Assured customer service: We can send our experienced engineers for installation, and training up customer engineers.

Mud Tanks Flexible Options: Skid Mounted or Trailer Mounted or Hydraulic Jack Up mud recycling Tanks available for your options.

 

Decanter centrifuge is an important solids control equipment used in oilfield drilling projects. GN Solids Control build big bowls decanter centrifuges for the customers around the worlds. This big bowl decanter centrifuge is GN new designed model which has a long bowl body and larger diameter.

 

GN Big Bowl Centrifuge Optimized Design

GN big bowl centrifuge has a bowl length of 71 inches that could make the slurry stay longer time in the bowl. With 22-inch bowl diameter, the solid particles in the bowl will have a large G force which is helpful for solids settling on the inwall of the bowl. The upgraded material of stainless steel 2205 makes the bowl balance better. Besides the upgrade on the material and bowl design.

GN big bowl decanter centrifuge has several features:

1. Main drive and back drive motor located at the same sides for making enough space for the operator.
2. The centrifuge bowl clamping and belt fasten device avoid the bowl shaking to damage during transportation.
3. Air pressure support to make them open for the collection box lid much easier.
4. The centrifuge base seat has the forklift operation holes that the centrifuge would be convenient for forklift carrying.

 

The GN big bowl decanter centrifuge sent to different countries for drilling mud solids control to separate the much fine solid. Always there will be a small bowl centrifuge before the big bowl centrifuge to remove the large content solid, then the big bowl for further treatment to recover more drilling fluids.

 

GN solids control could provide a decanter centrifuge for application in diamond drilling, oilfield drilling as well as waste management.

 

ViST is Vacuum Screen Technology is to work with shale shakers to reduce drilling waste and recycle drilling fluids.

 

ViST was pending a patent design developed by GN Solids Control.  GN tested ViST with drilling fluids. It proved to be very efficient for recycling drilling fluids.

The ViST Pan is installed under the last screen or mounted externally. And a suction hose is connected to ViST vacuum unit. The compressed air from the air compressor or the rig air supply is required to create suction on the last screen surface, pulling additional fluid off the cuttings. It can reduce the liquid on the cuttings by 30-50%.

As a result,ViST maximizes the volume of recovered and reused fluids and it provides dryer cuttings. Dryer cuttings mean less drilling waste and more recovery drilling fluids. So ViST can save money for operators on drilling fluids and waste management.

 

Features & Benefits

 

Widely application for OBM, SBM, and WBM.

Both onshore and offshore applications reduce waste and recovery fluids.

To replace High G drying shaker without any extra consumption of shaker screens.

Less footprint and easy installation without welding.

Reduce waste by 30% to 50%

A finer screen can be used to improve the solids control efficiency.

Less cost for drilling cuttings transportation

No electric power is required, suitable for work in Hazardous areas.

The suction and discharge time is adjustable according to different drilling conditions.

One ViST can be connected to 2 – 3 shakers with only one air supply

 

GN automatic chemical preparation and dosing unit is often used in the preparation, storage, and dosing of powder chemicals. The whole set of devices integrates automatic preparation, dissolving, and dosing, and operates automatically; the quantitative screw conveying and timing vibration design of dry powder feeder can reduce the agglomeration of powder. The dry powder dosage and water inflow can be adjusted, and the corresponding concentration of the liquid chemical can be prepared according to the working conditions. The built in the electric control cabinet can control the whole preparation and dosing process.

 

The GN automatic dosing unit is widely used in wastewater and sewage treatment and other process media treatment in petroleum, chemical, paper, electric power, coal, pharmaceutical and food industries.

Because of its wide applicability, the automatic dosing the unit can be used with main dewatering equipment such as decanter centrifuge, screw press, and filter press for preparation and dosing flocculants solvent.

1. The dissolving tank is made of stainless steel SS304 or PP (polypropylene) and the agitator is made of stainless steel 304
2. The power of the whole machine includes all agitators, dosing screw, excluding dosing pump
3. The system is equipped with one dosing pump as standard, or one can be added according to the customer’s requirements to meet the requirements of 1 duty 1 standby.
4. According to the working conditions on-site, the motor, and control cabinet can be explosion-proof or non-explosion-proof.

Automatic Dosing System Main Features & Applications

• High integrated all-in-one Equipment.
• Highly automated, the complete system can be controlled intelligently by PLC.
• Compact structure, easy to operate and install, the onsite installation is only related to water and power.
• Safety and Reliable work. The system will automatically shut down and issue an alarm signal if the equipment fails to work.
• Stable Performance, and Fully Automatic Control, the amount of dry powder is automatically adjusted according to the change of water volume.
• Good corrosion resistance, and all contact parts with the medium is made of engineering plastics or stainless steel.
• Suitable for powder, granular, fibrous, and other materials, as well as the preparation and dosing of liquid chemicals.

 

 

 

GN 3 phase decanter centrifuge is used to separate two liquid phases from one solid phase at the same time. As is known, decant centrifuge principle of separation is by G force. Because of the different densities of the (immiscible) liquids and the solid , so all three phases can be discharged simultaneously using the GN 3 Phase decanter centrifuge. GN Solids Control design and manufacture three phase decanter in different bowl size include: 350mm, 450mm and 520mm.

However, to do the 3 phase separation, the solid phase must be the specifically heaviest phase and the two liquid phases should have different densities.

The structure and principle of the three phase decanter centrifuge are similar to the two phase decanter centrifuge. The difference is the way of the liquid discharged. There are two liquid phases in separation in a 3 phase decanter centrifuge. A higher density liquid phase is discharged under pressure, and the lower density liquid is discharged without pressure. Following is the principle drawing of the 3 phase decanter centrifuge.

 

 

GN 3-Phase Decanter Centrifuge Parameter

Model GNSX-350, GNSX-450 & GNSX-520

• Applications For Three Phase Decanter Centrifuge
• Separation of oil sludge containing oil from refineries, oil ponds, etc.
• Extracting animal/vegetable fats and oils
• Starch manufacture for separating wheat starch and gluten.
• Oil Water and Solids separation.
• Coal tar treatment
• Biofuel production
• Lubricating oil additives
• Meat/poultry/fish (edible & inedible fats; yellow, white and brown grease)
• Edible oils (olive, palm, granola)

 

 

GN Solids control presents its Positive Displacement Pumps with the GNG Screw Pump series in its different presentations, depending on the work flow, we have them from 10 to 90 m3 / h and 4kW to 22kW. These positive displacement pumps are hydrostatic equipment. They pump a defined volume regardless of engine revolutions, but virtually independent of pressure. A positive displacement pump is one that displaces (delivers) the same amount of fluid for each rotation cycle of the pumping element.

 

These pumps are ideal for feeding centrifugal decanters without agitating the drilling mud. The main parts are the screw shaft (rotor) and the screw shaft bushing (stator). Due to the special geometric shape of the two parts, they form the pressurizing capacity separately. The fluids flow along with the shaft, the internal flow speed is slow, the capacity remains, the pressure is constant, so it will not generate vortices or agitation. The pump shaft is made of stainless steel, the GNG series pump is available for options with a full stainless steel body.

The GNG centrifugal feed pump can be driven by the coupler or adjust the speed using a variable speed motor, triangle V-belt, gearbox, etc. G series positive displacement pump with fewer accessories, compact structure, small volume, easy maintenance, rotor and Stator are wear parts of this pump, it is convenient to replace. The stator is made of elastomeric material, so it has particular advantages over other pumps for transferring fluids with high viscosity and included hard suspended particles.

Positive displacement pumps have multiple applications within the oil and gas industry, for the shipbuilding industry, beer industry, urban and wastewater treatment, paper industry, chemical industry, pharmaceutical industry, food industry, etc.