Blue Flower

GN Company has supplied one unit of 2-phase Decanter Centrifuge, with bowl diameter 220mm, and capacity 1000liters per hour for client in Europe. Here GN Engineers would like to introduce more technical details about Decanter Centrifuge.

In actual operation, the mud quality and mud amount of the sludge will change. In order to ensure that the dewatering effect remains unchanged, the user can choose a reasonable price according to the material properties of the suspension, the requirements of the liquid and solid phases after separation, and the processing capacity. Select the relevant parameters of the centrifuge, such as: processing capacity, drum speed, differential speed between the drum and the screw, overflow plate diameter, etc., to obtain a satisfactory separation effect.

If the drum of the centrifuge is driven by a frequency converter, the speed of the drum can generally be adjusted stepless within a large range. By adjusting the speed, the separation factor of the centrifuge can be controlled to adapt to the requirements of different separation liquids. Generally speaking, the larger the solid phase particles in the separation liquid, the greater the density, and the lower the separation factor is required, and vice versa, the higher the separation factor is required. With the increase of the rotating speed of the drum, the separation factor increases, the separation effect improves (after the differential pulley is determined), the differential speed between the screw and the drum increases, and the processing capacity increases, but the vibration, The noise will also increase and the service life will decrease. Therefore, it is very important to select the appropriate speed under the premise that the separation requirements can be met. If the drum is not controlled by frequency conversion, its rotational speed is fixed, that is, its separation factor is fixed.

Best & Regards,

Kevin Liu

Regional Manager

GN Separation & Conveying

Hebei GN Separation & Conveying Equipment Co.,Ltd

Tel:+86-316-5276988/9

Mob (WhatsApp/Wechat): +86-15810901775

Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

GN China: www.gnseparation.com (Langfang/Beijing)

GN USA: www.gnsolidsamerica.com (Houston, Texas)

GN Russia: www.gnseparation.ru (Moscow City)

GN Company is professional manufacturer of Separation Equipment, including Solid-Liquid separation, Liquid-Liquid separation, Solid-Liquid-Liquid separation.

Regarding to Decanter Centrifuge, the larger the diameter of the drum, the greater the processing capacity of the centrifuge. The longer the length, the longer the sludge stays in the drum and the better the separation effect. However, when the centrifuge is too large, the manufacturing and processing costs will also increase.

The rotating speed of the drum is an important process control parameter. From the separation factor formula mentioned above, it can be seen that under the guarantee of a certain centrifugal separation effect, the speed depends on the diameter of the drum. The smaller the diameter, the higher the required speed. Conversely, the larger the diameter, the required speed is also lower. Generally, the radius of the horizontal screw machine with small processing capacity is small, but the rotation speed is higher than that of the horizontal screw machine with large processing capacity.

The hollow shaft screw conveyor not only mixes sludge, but also produces centrifugal force of the sludge. At the same time, it is also responsible for transporting the sludge in the solid ring layer away from the liquid ring layer to realize the separation of sludge and water. At the cone angle of the rotating drum, the diameter of the spiral begins to decrease, and the sludge is dried out of the liquid ring layer. The cone angle is generally between 8 and 12 degree.

The difference between the rotation direction of the screw and the speed of the drum is the speed at which the sludge is output, which determines the length of time the sludge stays in the machine, so it is an important process control parameter. In addition, the overflow adjustment weir can be used to adjust the thickness of the liquid ring layer, which is also an important process adjustment parameter. By adjusting the thickness of the liquid ring layer, the residence time in the drying zone can be changed.

Best & Regards,

Kevin Li

Regional Manager

GN Separation & Conveying

Hebei GN Separation & Conveying Equipment Co.,Ltd

Tel:+86-316-5276988/9

Mob (WhatsApp/Wechat): +86-15810901775

Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

GN Company is a professional manufacturer of Centrifuge/Separator, and now has owned 3 factories in China Mainland. GN Company now is capable to manufacture Decanter with bowl diameter from 220mm to 760mm, with capacity 1-2 cubic meters per hour to 120 cubic meters hour maximum. GN Company is now capable to manufacture both two-phase Decanter Centrifuge (for separation of solid and liquid) and three-phase Decanter Centrifuge (for separation of solid, light-liquid, and heavy-liquid).

The drum of Decanter Centrifuge is a combination of a cylinder and a cone, in which the cylindrical part is the sedimentation zone, and the cone part is the dry zone, also known as the shore zone and the beach.

The hollow spiral has four open grooves along the axial direction, and the two adjacent open grooves form a 90-degree angle with each other, and the four open grooves run through most of the length of the helix. The advantages of this structural design are that the spiral weight is relatively light and has good mechanical properties; on the other hand, the open groove provides a considerable flow area and a soothing flow channel, which well protects the floc from The outside of the centrifuge is not damaged when it enters the centrifuge, which reduces the moisture content of the sludge and greatly reduces the amount of flocculant.

Centrifuge outlet mud scraping device: The sludge separated by the centrifuge will cling to the inner wall of the mud collection chamber under the action of extremely high centrifugal force, and it is easy to block the mud outlet of the centrifuge, especially when After the centrifuge stops working for a period of time, the sludge at the end of the centrifuge's sludge discharge port is very easy to dry and adhere to the body, blocking the sludge outlet of the dewatering machine, making the treated sludge unable to discharge and causing the centrifuge to fail to work normally. This sludge scraping device can slowly and continuously scrape the sludge attached to the inner wall of the sludge discharge end of the centrifuge, so as to ensure the smooth sludge discharge of the entire centrifuge.

Best & Regards,

Kevin Liu

Regional Manager

GN Separation & Conveying

Hebei GN Separation & Conveying Equipment Co.,Ltd

Tel:+86-316-5276988/9

Mob (WhatsApp/Wechat): +86-15810901775

Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

GN China: www.gnseparation.com (Langfang/Beijing)

GN USA: www.gnsolidsamerica.com (Houston, Texas)

GN Russia: www.gnseparation.ru (Moscow City)

Recently GN Company Engineers has completed factory test of two units of Disc Separators, and then would ship them to the Southeast Asian client. The separators would be used for waste treatment of palm oil plant. There are many palm oil processing plants in the Southeast area, and Centrifuge/Separator is widely used for palm oil processing and wastewater treatment.

The processing line of palm oil includes palm fruit collection, clean, grind, centrifugal extraction, and oil clarification. Decanter Centrifuge is used for extraction, which can separate palm pomace from liquid phase. The outlet liquid (oil) from Decanter Centrifuge would be feed into Disc Stack Separator for clarification, in order to remove water & fine particles from the oil.

The material is feed into Disc Separator by gravity or with a feeding pump, and with strong centrifugal force, the material would pass through the disc bundle separation intervals. The heavy phase liquid (bigger specific gravity) moves along the disc wall towards the outside of neutral hole, and discharged by centripetal pump. The light phase (smaller specific gravity) would move along the disc wall into the neutral hole. Sludge would accumulate in the sediment area, and then would be discharged regularly. The work of Disc Separator is continuously with automatically controlled by PLC.

GN Company now is capable to manufacture both Decanter Centrifuge and Disc Stack Separator, with 2-phase design and 3-phase design capability. The bowl diameter is from 220mm to 760mm, and capacity from 1~2m3 per hour to 120 m3 per hour.

Best & Regards,

Kevin Liu

Regional Manager

GN Separation & Conveying

Hebei GN Separation & Conveying Equipment Co.,Ltd

Tel:+86-316-5276988/9

Mob (WhatsApp/Wechat): +86-15810901775

Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

GN China: www.gnseparation.com (Langfang/Beijing)

GN USA: www.gnsolidsamerica.com (Houston, Texas)

GN Russia: www.gnseparation.ru (Moscow City)

GN Company has completed production and assemble of one batch of screw conveyors, and plan to ship them to clients’ job site in the coming week. GN Company is a professional manufacturer of U-type Screw Conveyor, which is used to convey material continuously without flexible traction. Its working principle is to use the rotating screw to move the material along the casing. For example, Screw Conveyor is standard supporting equipment, to collect and transfer outlet dewatered cake discharged from Decanter Centrifuge. Screw Conveyor is widely used in food, medicine, chemical, wastewater treatment, petroleum and petrochemical, etc. Screw Conveyor can be used to transfer different kinds of material, such as coal ash, cement, sand, cereal, slurry, mud, food waste, etc.

GN Company is now capable to manufacture Screw Conveyor with capacity from 15 tons per hour to 55 tons per hour, with screw diameter 10~18inch, i.e. 250~450mm, and screw length 24ft to 48ft, i.e. 7.3~14.6m. GN Company is also capable to manufacture customized design Screw Conveyor based on clients’ requirement. And explosion proof motor and control panel are also available if there is requirement from clients.

Besides Screw Conveyor, Solids Vacuum Pump is also one of GN Company’s hot sale products for conveying/transferring material application. GN Sludge Solids Vacuum Pump is 100% air driven pump, and it doesn’t cost electricity or diesel. The pump can be widely used to transfer sludge, solids, sand, powder, soil, stone, slurry, water, and their mixture.

Please look at the pump video from linkage as below.

https://www.youtube.com/watch?v=OuUWPKmtVr0

Welcome to contact GN Sales Managers, and they would offer one stop turnkey solution based on clients’ requirement.

Best & Regards,

Kevin Liu

Regional Manager

GN Separation & Conveying

Hebei GN Separation & Conveying Equipment Co.,Ltd

Tel:+86-316-5276988/9

Mob (WhatsApp/Wechat): +86-15810901775

Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

GN China: www.gnseparation.com (Langfang/Beijing)

GN USA: www.gnsolidsamerica.com (Houston, Texas)

GN Russia: www.gnseparation.ru (Moscow City)

GN Company recently completed production of one unit of Decanter Centrifuge, and it was expected to be delivered to client's job site for chemical salt crystal dewatering soon. GN Company has been a professional manufacturer of Decanter Centrifuge for about 10 years, and now is capable to manufacture decanter centrifuge with bowl diameter from 220mm~760mm, and capacity from 1~2 cubic meters per hour to 120 cubic meters per hour.

GN Company Technical Engineers suggest T series Decanter Centrifuge for this project. This kind of Decanter Centrifuge is mainly used for dewatering application, with high solid content sludge and high abrasion. In order to protect decanter from abrasion, GN Technical Engineers design and install tungsten carbide plates around screw and the solid discharge port. Operators can adjust pump feeding rate, drum and screw rotation speed and liquid wire plate during actual operation, in order to achieve the best performance.

The control cabinet of GN Decanter Centrifuge is made of stainless steel, with protection level IP55 or above. The main motor, back up motor, and feeding inlet pump are all under VFD control in the cabinet. The electrical components are all from international reputable brand.

Besides supplying single equipment, GN Company can also supply Feeding Pump (progressive cavity type), Screw Conveyor, Polymer Preparation Unit with Dosing Pump, Tank, etc. Comparing with other manufacturers, GN Company takes more advantages of design and supply One Stop Turnkey Solution.

Welcome to contact GN Sales Managers, and they would offer solution based on clients’ project situation.

Best & Regards,

Kevin Liu

Regional Manager

GN Separation & Conveying

Hebei GN Separation & Conveying Equipment Co.,Ltd

Tel:+86-316-5276988/9

Mob (WhatsApp/Wechat): +86-15810901775

Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

GN China: www.gnseparation.com (Langfang/Beijing)

GN USA: www.gnsolidsamerica.com (Houston, Texas)

GN Russia: www.gnseparation.ru (Moscow City)