May 24

GN Solids Control provides a large number of solid control system and waste treatment system products to customers worldwide every year. GN Solids Control shale shaker, as the main equipment for drilling fluid treatment, as a vital role in the separation and purification of coarse solid phase in drilling fluid. Some weeks ago, GN Solids Control successfully delivered several sets of drilling fluid shale shaker screens, Desander and desilter for a domestic drilling company.

1. GN Solids Control desander

GN Solids Control sand remover is mainly used to remove drilling cuttings larger than 55 microns in drilling fluid. The drilling fluid purification sand remover is mainly composed of underflow screen and 10 inch sand removing cyclone. Under normal circumstances, the centrifugal pump is used to feed the desander. The cyclone uses a centrifugal pump to pump the mud into the swirl cone at high speed, and centrifugally separates the mud under the action of centrifugal force. After centrifugal separation, the lighter mud flows out of the cyclone outlet. The mud with high solid phase is ejected through the drip nozzle, and further sieved and separated through the underflow screen.

2. GN Solids Control Desilter

The structural principles of GN Solids Control Desilter and Desander are similar. The only difference is that the cyclone used in the desilter is a 4-inch cyclone. Generally, the number of desilting cyclones is an even number. Desilter is mainly used to remove solid cuttings larger than 25 microns in drilling fluid.

In addition to sand remover and desilter, GN Solids Control is also providing customers with integrated sand and desilter machine. This equipment integrates three devices: sand remover, desilter and underflow screen. Not only the two-stage separation of sand and mud removal is realized at the same time, but also the occupied area of ​​the tank surface is minimized. While improving the processing effect, it minimizes the floor space.

The separated liquid after desander and desilter can into fine solids separate process by decanter centrifuge

If you are interested about this news, welcome contact GN Solids Control to get more detail

written by GN solids Control

May 17

GN Solids Control, as a leading manufacturer in the solid control industry, has provided several customized systems including sludge treatment systems for customers worldwide. Recently, GN Solids Control has delivered a Chinese sludge treatment system with a processing capacity of 15m3 / h to a Chinese customer.

GN Solids Control sludge treatment system is mainly composed of the following units:

1.GN Solids Control feed pump

Since the sludge to be treated usually has a larger density and a higher viscosity, a powerful conveying system is used to pump the sludge. The solution adopted by GN Solids Control is a vacuum delivery pump, which mainly transports sludge with a solid content of 80% and particles smaller than 75mm. Any movable sludge or medium can be transported by GN Solids Control vacuum pump.

2.GN Solids Control premixed heating tank

When the sludge needs to be diluted with chemical substances, it is usually necessary to heat the materials to improve the homogeneous mixing effect. Mud mixers are also used to thoroughly mix oil sludge. At present, the available heating methods are resistance wire heating and steam heating.

3. Shale Shaker coarse screen processing device

The submersible pump pumps the diluted sludge into the GN Solids Control shale shaker processing device. The double-layer shaker is a common shaker. The shaker is equipped with an anti-splash device and a flushing nozzle to clean the screen surface at a certain frequency to prevent the shaker screen from clogging.

4.GN Solids Control two-phase separation centrifugal processing device

Most of the solid particles in the mud discharged from the vibrating screen are further separated by the GN Solids Control two-phase sedimentation centrifuge. After being processed by a centrifuge, the solid oil content is about 1% -3%. Thermal cracking equipment can be used for further processing of solids discharged from vibrating screens and sedimentation centrifuges


5.GN Solids Control three-phase dish centrifuge processing device

GN Solids Control three-phase disc centrifuge as a key processing equipment can obtain a large amount of clean oil (BS & W less than 3%) and clean water (oil content of 1000-3000ppm).

The GN Solids Control sludge treatment system is a compact and integrated system. The above treatment equipment can be placed in standard containers for easy movement and construction.

If you are interested about this news, welcome contact GN Solids Control to get more detail

written by GN solids Control

May 10

Recently, three set GNLW364EP-VFD series decanter centrifuges, one GNLW224EP-VFD series decanter centrifuge and one GNZS752F series drilling fluid vibrating screen produced by GN Solids Control have been commissioned and ready to be sent to Russia. This customer has been cooperating with our company for many years. The GN Solids Control brand equipment has the characteristics of stable operation, good processing effect and relatively favorable price, and has reached a strategic cooperation agreement. In addition, our company has reached a strategic cooperation agreement with AKROS, Russia’s largest mud service company, and became a supplier of Gazprom (abbreviated as Gazprom), supplying solid control equipment all year round.

 The centrifuge is mainly used for oil drilling mud separation and processing, drilling waste treatment industry, and related equipment also includes and is not limited to: shale shaker / vertical cutting dryer / pumps / agitators

This project’s GN Solids Control GNLW364EP -VFD series decanter centrifuge is designed for a single processing capacity of 35m3 / h, and its design maximum speed is 3900RPM. Using frequency conversion control, the conventional speed is adjustable between 0-3200RPM. The maximum separation factor is 3063G, and the diameter of the separated particles is 2-5μm. The differential torque is 3500N.M and the main motor power is 37KW.

The following are the characteristics of GN Solids Control 364EP series decanter centrifuge:

1. The drum is made of duplex stainless steel SS2305 by centrifugal casting, and its performance is better than that of peer SS304 and SS306.

2. The centrifugal casting process makes the drum texture more uniform and has good dynamic balance performance.

3. The slag discharge port of the centrifuge and the discharge port of the screw pusher are all set with tungsten carbide cemented carbide sleeves, which have extremely high wear resistance and are not easily broken.

4. The screw pusher is embedded with wear-resistant alloy sheet, which has a longer life and reduces the number of maintenance.

5. PLC control panel control, the sensor can be installed on the centrifuge to monitor the state of the machine.

The centrifuges produced by GN Solids Control are widely used in drilling mud treatment, sewage environmental protection treatment, oily sludge treatment, solid-liquid separation in the chemical and food and beverage industries.

If you are interested about this news, welcome contact GN Solids Control to get more detail

written by GN solids Control

Apr 30

Recently, GN Solids Control have finish 1 set waste treatment centrifuge

Centrifuge for separating finer solid particles and oil water, using a patented technologies and top-level materials and processes, imported bearings and components of internationally renowned brands to improve the stability of the equipment and prolong its service life.

For the GN solid control decanter centrifuges, the main drive motor is converted to stock through a differential drive centrifuge. back motors directly drive the auger and differential with its operating speed is fixed.

GN Solids Control is the first manufacturer of mud solid-control equipment in the country to pass the certification export standard qualification.,the centrifuge can work with other equipment together like shale shaker

Centrifuge use for different job like oil sludge treatment

1. Barite recovery centrifuge: The rotation speed is about 1800 RPM, the “G” value is about 700, the low-density separation point: 6-10 μm; the high-density separation point: 4-10 μm.

2. Large-capacity centrifuge: rotating speed is about 1900 ~ 2200RPM, “G” value is about 800, low-density separation point: 5 ~ 7μm (without weighting drilling fluid), used to exclude low-density solid phase;


3. High-speed centrifuge: The rotation speed is about 2500 ~ 3300RPM, the “G” value is about 1200 ~ 2100, and the low-density separation point: 2 ~ 5μm is mainly used to remove the low-density content of unweighted drilling fluid.

The suspension to be separated and the accelerating sedimentation agent are continuously transported into the centrifuge through the feed pipe, after being accelerated by the acceleration cone of the screw pusher, they enter the high-speed rotating centrifuge drum, and the suspension is An annular liquid flow is formed in the drum, and the solid particles rapidly settle to the inner wall of the drum under the action of centrifugal force. The differential speed of the centrifuge drum and the spiral produced by the differential drives the sediment to the drum cone by the spiral At the end of the dry discharge area, through the two-way squeezing of the screw thrust and the centrifugal component force, so that the sediment is further extruded and dehydrated, it is discharged from the slag discharge port of the small end of the drum. The depth of the liquid layer of the annular liquid flow can be adjusted by the overflow baffle at the big end of the drum to obtain different separation effects of sediment and clear liquid. The separated clear liquid is discharged through the overflow port of the centrifuge, the sediment and the separated liquid are collected into the respective collection bins in the casing, and finally discharged out of the machine under the action of gravity.

More question,welcome contact GN Solids Control

written by GN solids Control

Apr 17

As a leading brand in the domestic solid-liquid separation equipment industry, GN Solids Control is constantly committed to providing customers with solid quality products with stable quality, superior performance and high economic efficiency. As far as decanter centrifuges are concerned, GN Solids Control has serialized the production models of centrifuges. From GNLW76 series decanter centrifuge with a 30-inch drum diameter, GNLW55 series decanter centrifuge with a 22-inch drum diameter, GNLW36 series decanter centrifuge with a 14-inch drum diameter to GNLW22 series decanter with a 9-inch drum diameter Centrifuges. The decanter centrifuge models in each series are divided into centrifuges with an aspect ratio of 3 and an aspect ratio of 4.2 according to the construction conditions. These various types of centrifuge models cover various solid-liquid separation conditions.

Decanter centrifuge and shale shaker is main equipment for drilling mud treatment

This month, GN Solids Control completed the delivery of two decanter centrifuges for an old customer in South America. The customer just ordered a batch of GN Solids Control products 9 months ago. After using the GN Solids Control products for a period of time, the customer was very satisfied and he immediately placed an order for the above centrifuge. South America is a very important region in GN Solids Control’s international market. At present, GN Solids Control has a very large number of GNLW22 series centrifuges serving various slurry processing sites in South America.

Generally speaking, the decanter centrifuge is mainly composed of several parts such as rotating drum, screw pusher, collection box, equipment base, main and auxiliary motors and electric control box. GN Solids Control can provide customers with two options of fixed speed centrifuge and variable frequency centrifuge, and can also choose the appropriate explosion-proof electric control box and explosion-proof motor according to different working conditions on the customer’s site.

The drum of GN Solids Control centrifuge is made of two-phase alloy stainless steel by centrifugal casting. The solid phase slag discharge port, drum scraper and side scraper are all made of cemented carbide material by precision metallurgy casting. Inside the drum, the blades of the screw propeller are made of carbide inserts, which are more wear-resistant and easier to replace. Not only do we strive for excellence in the materials of centrifuges, we also pay more attention to quality in terms of supporting brands. GN Solids Control centrifuge bearings use the international top brand-SKF bearings, electrical components are used Siemens, ABB and Schneider brands.

If you have requirements for separation equipment, please feel free to contact us, GN Solids Control will provide you with first-class pre-sales, after-sales service and support.

If you have related requirements, please feel free to contact GN Solids Control.

written by GN solids Control

Apr 10

In view of the current huge demand for sludge treatment market, but the equipment manufacturers are mixed, and many customers have paid for the equipment with high prices and failed to achieve the expected treatment effect, our company has launched a set of sludge treatment equipment. Based on laboratory data, customers with sludge treatment needs can rent this set of pilot equipment to complete the calculation of various indicators, optimization of bottleneck process routes, implementation of various cost estimates, selection of chemicals, energy consumption estimates data collection. Based on these data, if you order the sludge treatment system, the customer can be targeted and purchase a system that meets their own on-site treatment.

The set of oil sludge treatment equipment includes the following parts:

1. Pretreatment screening module

The pretreatment screening module is a key module for removing large particles and debris from the mixed sludge. This module uses a high-frequency shale shaker to remove out large particles and debris larger than 100 mm. The mixed sludge from which large particles and debris have been removed will enter the mixing and stirring heating device for further medicinal heating and homogeneous stirring.


2. Solid-liquid separation module

After the heated and homogeneously stirred oil sludge mixture enters a special sludge centrifuge for settling separation, solids with a particle size greater than 2-5 microns can be separated.

3. Three separation modules for water, oil and slag

After separation by two solid-liquid separation modules, the mixed liquid phase contains a small amount of solid residue and an oil-water mixture. The three-phase disc centrifuge produced by GN Solids Control can separate this part of the mixture into three phases of oil, water and slag. After treatment, the solid phase oil content is 1-2%, the treated water can reach 500-1000PPM, and the treated oil water content is 2-3%.

If you are troubled now that you cannot find a reliable sludge treatment solution, please contact us. We will provide you with professional technical service support and perfect pre-sale and after-sales service support.

If you have related requirements, please feel free to contact GN Solids Control.

written by GN solids Control

Apr 03

Recently, orders for GNZJ703F series mud cleaners and vacuum degassers for drilling fluid processing produced by GN Solids Control have been increasing. Among them, orders for cleaners and vacuum degassers from Middle Eastern customers have been assembled and tested, and packaging is waiting to be completed. Then sent to the customer site.

The mud cleaner is also called a sand removal and mud removal integrated machine, as important parts of solids control system,which integrates a shaker, a sand removal cyclone and a mud removal cyclone into one, which meets the mud treatment process while achieving an integrated and lightweight market demand. Cleaners and vacuum degassers are one of the important oil drilling mud solid control equipments. The upper end equipment is the first-stage vibration screening vibrating screen of the drilling mud solid control process, and the lower end equipment can use a decanter centrifuge to remove the mud. The mud is further refined. The following are the product features of the GNZJ703F series mud cleaner:


1.Three-in-one sand removal, mud removal and vibrating screen, compact structure design;

2. Polyurethane cyclone to extend the service life;

3. The bottom frame of the screen box is made of stainless steel, which greatly improves the corrosion resistance and service life;

4. Detachable cyclone bracket, which is convenient for customers to transform into shaker, sand remover or mud remover;

5.Mechanical screen box synchronous lifting device can adjust the screen box angle under non-stop working conditions, so as to effectively control the solid phase water content;

6. Patented design of screen box sealing, good sealing effect, long service life, and easy to replace;

7. The overall heat treatment of the screen box can meet the long-term work under high vibration intensity;

8, pre-tensioned composite frame screen, equipped with quick-release ratchet tool, easy to replace and long service life;

9. Use international brand vibration motor, American Martin motor or Italian OLI motor

If you have related requirements, please feel free to contact GN Solids Control.

written by GN solids Control

Mar 20

Recently, the GN Solids Control R & D team has successfully upgraded the original mud recovery system-upgraded shield mud separation system for several months in response to the market demand for shields, pipe jacking and piling, and first received orders for the domestic market. The system has been successfully introduced to the international market and will be issued to foreign customers in the near future. Orders for this batch of shield mud separation systems have come from several engineering construction units in Saudi Arabia, Singapore, Myanmar and India. In addition to bored pile engineering, this system with a small footprint, low cost, and significant processing effect can also be widely used in tunnel shield and pipe jacking projects and non-excavation directional crossing projects.

This set of mud separation system is mainly composed of three solid-liquid separation equipments such as vibrating screen, sand removing cyclone and mud removing cyclone. Its working principle is as follows:

1. A slurry supply pump pumps engineering slurry from a mud pit to a Shale shaker for preliminary solid phase separation to remove large particles of sand and gravel. It should be noted that the slurry supply pump can be purchased separately by the customer or selected by our company for the customer. Match.

2. After the slurry has undergone preliminary solid-liquid separation through a shale shaker, the slurry supply pump in the system is pressurized to supply the sand removal cyclone. After the high-speed cyclone separation, the grit component with a particle diameter greater than 40 microns is removed, the fine sediment is separated into the transfer tank, and then fed to the desilting cyclone by a slurry pump. The desilter cyclone will be more than 20 microns The particles are separated, and the slurry below 20 microns is returned to the storage tank, and re-proportioned and pumped to the construction machinery for recycling.

3. This system can also be equipped with a high-speed centrifugal dewatering centrifuge, which can separate 5-20 micron fine particles in the mud to ensure the performance of the mud.

The upgraded GN Solids Control shield mud separation system can be divided into three types according to different processing capacity: GNTBM-240M, GNTBM-360M and GNTBM-500M. The corresponding processing capacity is 240 m3 / h, 360 m3 / h, and 500 m3 / h. hour.

Considering the transportation costs of foreign customers and customers in remote areas in China, the above piling mud purification system does not have a standard storage mud tank. Customers can configure the corresponding mud tank according to their actual needs. These mud tanks can be customized by the customer or can be matched by our company. After the system is equipped with a mud tank, it can even be equipped with a skid-mounted mud jet mixing device to form a complete mud recovery system.

If you have related requirements, please feel free to contact GN Solids Control.

written by GN solids Control

Mar 12

Recently, GN Solids Control GNSP-40B series solid vacuum pumps and GNSP-20B series solid vacuum pumps have been sent to certain offshore drilling platforms. Due to its strong conveying capacity, high work efficiency, low equipment failure rate, simple operation and maintenance, etc., it has been favored by customers such as PetroChina and CNOOC. How can this equipment also be used to clean cabins, clean mud tanks, transport and convey, and cast cuttings , Cleaning platform and many other uses.

This project’s GN Solids Control GNSP-40B series solid vacuum pumps, also called pneumatic conveying pumps, are also called solid vacuum pumps because they can use the internal vacuum pressure of the equipment to transport materials with high solid content. The designed single unit processing capacity is 40m3 / h, and the gas supply demand is 17m³ / min.


GN Solids Control GNSP-40B series solid vacuum pump has the following characteristics:

1. High-efficiency Venturi device can generate vacuum of up to 85Kpa / 25 inches of mercury under the action of strong airflow, absorption maximum distance 50m, and emission maximum distance 1000m

2. There are no moving parts and wear parts inside the equipment, the maintenance cost is low, and the maximum granularity of the conveyed material is 75mm;

3. The pump body has a compact structure and a small volume. The weight of the equipment is 892Kg, which is about 2.6 square meters.

4. Equipped with high-quality control box to meet the use conditions of various working conditions.


The vacuum pump is mainly an idealized equipment for conveying solid and liquid materials with high solid content and high viscosity. The main working sites are: abandoned oil sludge ponds in oilfields, base rock cuttings while drilling, oil sludge from oil refineries, weathered sludge from oil fields, fracturing Oily sludge such as liquid oil sands; municipal sludge, building sludge, piling shield sludge, river dredging sludge, and other high solid content sludge; sand, stones, mine slag, and other solid particles

If you have related requirements, please feel free to contact GN Solids Control.

written by GN solids Control

Mar 05

The sewage treatment plant will reuse or discharge the sewage sent through the necessary treatment means to meet the national water quality control standards. From the perspective of sewage treatment, pollutants can be divided into suspended solid particles, organic pollutants, toxic substances, polluted organisms and polluted nutrients.

Treatment methods can be divided into physical treatment methods, biological treatment methods, sludge disposal and chemical treatment methods generated from sewage treatment according to the type of water quality. The physical treatment method is a method for separating and removing pollutants in sewage by using physical action. Common methods are sieve retention, gravity separation, centrifugation and so on. The decanter centrifuge plays an important role in the processing equipment of centrifugal separation.

Sludge dewatering is the main obstacle to river dredging projects. Equipped with a Shale Shaker, a sand remover, and a desilting dredging system, which can remove sludge above 25 microns, but fine particles below 25 microns cannot be processed. At this time, a centrifuge is needed. The GN Solids Control centrifuge can separate fine particles above 5 microns without adding polymers and relying only on mechanical separation. Through the addition of drug flocculation technology, the centrifuge and Dewatering unit can be used together to achieve zero emissions.

Sewage is pretreated by processing equipment such as grids, sand settling tanks, sedimentation tanks, etc. At this time, fine solid particles still exist in the sewage. The decanter centrifuge can use the quality difference between the fine particles (minimum 2-5 microns can be separated) and the liquid to mechanically complete the problems that the previous processing equipment cannot handle. GN Solids Control decanter centrifuge adopts centrifugal cast two-way stainless steel 2304 or 2205. The internal pusher adopts tungsten carbide alloy sheet inlaid protection for more durable and durable, these features provide protection to improve the life of the centrifuge.

What difference speed (pushing speed) can be used for sewage treatment?

1) First, the high differential speed (pushing speed) completely mixes liquid and solids; the entire mud centrifuge will work like a mixing mixer instead of an effective solid-liquid separation device.

2) Secondly, chemicals are usually added to the separated wastewater. High differential speed (pushing speed) will cause some medicine to be lost in the liquid outlet.

3) In addition, if chemicals are added to the wastewater before entering the centrifuge, it will generate foam in the centrifuge.

Therefore, if your centrifuge has experienced the above problems, you may need to consider reducing the differential speed (feed speed).

After the decanter centrifuge processes the sewage, it will then pass through activated sludge treatment system and tertiary treatment of biological denitrification and phosphorus removal, coagulation sedimentation filtration, activated carbon adsorption, etc., and finally become reclaimed water, which is usually called water.

If you have related requirements, please feel free to contact GN Solids Control.

written by GN solids Control