GN Company completed production of one unit of Screw Press, model 201, polymer preparation unit, model 500L, and sludge feeding pump (progressive cavity type). After final trail test, then the system would be shipped to client’s job site.

Besides Decanter Centrifuge and Filter Press, Sludge Dewatering Screw Press is also one of the main equipment used for sludge dewatering. Dewatering Screw Press has obvious advantages of low energy cost, low footprint, low investment, and low operation cost.

Here it is description about the dewatering process of Screw Press.

The sludge is firstly feed into metering tank, generally by pump. And then the sludge flows into the flocculation mixing tank, and the excess sludge flows back to the sludge tank from the overflow pipe. Meanwhile polymer flocculent is feed into the flocculation mixing tank, where it is completely mixing with the feeding inlet sludge. The mixture would be feed into the dewatering section of the screw press, and this flow is gravity flow. During the process of dewatering, the screw pitch of screw gradually becomes smaller and compressed by the pressing plate, so that the internal pressure in the main body becomes larger. When dewatering process is complete, then the mud cake is discharged.

GN Company has now supplied Screw Press to clients in Malaysia, UAE, Russia, Portugal, Peru, Brazil, Argentina, Nigeria, etc.

Welcome to contact GN Sales Managers, and they would offer one stop turnkey solution based on clients' project 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 has completed final assemble of one batch of sludge dewatering equipment, including Dewatering Decanter Centrifuge, Polymer Preparation Unit, Submersible Slurry Pump for feeding, Tank, etc.

GN Company has been a professional supplier of One Stop Turnkey Solution of solid liquid separation, with capabilities to manufacture decanter with bowl size 220mm to 760mm, and treatment capacity 1~2 m3 per hour to 120 m3 per hour.

Decanter Centrifuge is the main equipment for sludge dewatering, and it achieves solid liquid separation by centrifugal force, which is created by the high speed rotation of bowl part. There are two motors for Decanter, and main motor is used for the Bowl, and back-up motor is used for the scroll. Their rotation speed of bowl and scroll is same, while speed is different. Thus it creates a differential speed to separate solid and liquid. Decanter Centrifuge is continuously working machine and highly automatic.

For dewatering capacity of Decanter, both Bowl Speed and g-force are important. But that is not to say that dewater capacity would increase as bowl speed increases, because capacity has limited value because of bowl size of decanter. And at higher speed, the screw would suffer greater resistance to discharge sludge, and become more quickly to get abrasion. Higher speed also reduces the working hours/life of Decanter. So it's best to keep the Decanter within the range of its optimal speed. GN Decanter’s speed can be adjustable through VFD in the control cabinet.

Welcome to contact GN Sales Managers, and they would offer detailed 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 has been a professional manufacturer of Decanter Centrifuge for over 10 years, with capability of manufacturing decanter with bowl size 220mm~760mm, and treatment capacity from 1~2m3 per hour to 120m3 per hour.

GN Company can supply Decanter Centrifuge with explosion proof standard, including motor and control cabinet. The cabinet can be customized if there is space limitation in clients' job site. And the door for cabinet is available with both one-door and two-door. Quick Opening Lock is also available for easy access.

GN Company can deliver one complete set of two-year spare parts with decanter together, if it is required by client. Maintenance Tools for Decanter is also available.

Main Motor, Back Motor, and Sludge Feeding Pump, all of them are VFD control by cabinet of Decanter. Sludge Feeding Pump flow rate is automatic adjusted considering the solids load into Decanter, in order to get the best efficiency and separation performance of Decanter. GN Decanter can also display trend graphs from the principal process variables. And Decanter cabinet's Program is open source. GN Engineers would also share Communication Address Table, so Clients' Electrical Engineers can add other controls as what they need.

Generally GN Company would deliver 5 meters of cable with Decanter together, and Clients can order more if they need. Generally the Cables includes for Power, Main Motor, Back Motor, Feeding Pump, Temperature Sensor 1, Temperature Sensor 2, Vibration Sensor, Automatic Lubrication Unit. It can be added more if clients need other cables.

All instruments in the cabinet are from reliable and reputable supplies, and clients can find spare parts easily from local market.

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)

Solids Vacuum Pump is hot sale pump of GN Company’s products, as it has much more wide application than common pumps, and it can be used to transfer sludge, slurry, powder, sand, soil, etc.

Please find the pump video from linkage as below.

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

Solids Vacuum Pump is 100% air operation/driven pump, and can work safely in dangerous explosive environment, such as drilling site, refinery plant, etc.

GN Company has developed 3 models of Solids Vacuum Pump, with different capacities, including 10m3 per hour, 20m3 per hour, and 40m3 per hour. The capacity is calculated based on water, and it might reduce accordingly during actual work, especially for high density or high viscosity sludge.

The Pump itself doesn’t need electricity or diesel, and it is shall be supplied air, always by Air Compressor. There are diesel driven Air Compressor, and it can help the pump to work in remote area without electricity, and the Air Compressor can be movable with wheel, which is great convenient. The air pressure requirement for different models of Vacuum Pump is different, and welcome to contact GN Company Sales Managers, and they would offer details about the air requirement. Air Holder can keep the air supplying under stable flow rate, which greatly increase the performance of the Pump, thus it is better to provide Air Holder for Air Compressor. The Pump, Air Compressor, and Air Holder can be installed together on Truck or Trailer, which is also convenient for clients to move the Pump around different job sites.

GN Company now has already supplied the Pump to clients in UK, Norway, Portugal, Spain, Greece, Russia, Nigeria, Oman, UAE, Bahrain, Mongolia, India, Malaysia, Singapore, Canada, Peru, Mexico, etc.

Welcome to contact GN Sales Managers, and they would offer One Stop Turnkey Solution for clients’ projects.

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)