GN Screw Press Unit for South American Client

This week, GN completed the assembly a unit dewater screw press, which later will be sent to overseas clients which located in America for wastewater treatment.

The screw press unit is a compact sludge dewatering equipment with low energy consumption and low noise, which can achieve a high degree of automation control in the process of use.

The dewater screw press machine is composed of fully automatic control cabinet, flocculation modulation box, sludge thickening and dewatering devie, and liquid tank.

The screw dewater press mainly divided into two parts in structure, namely flocculation conditioning tank and dewatering assemble. The main body material is stainless steel 304, with high structural strength, good corrosion resistance and easy maintenance.

In this order, the customer choose the model of GNDL301 which equip with screw diameter 300mm and 1 piece 0.55KW screw motor and a agitator which power 0.4KW.

Flocculation is an essential process in the working process of the dewater screw press, we also can equip a set of polymer dosing unit according to your request.

For more information about sludge dewatering screw press, please feel free to contact GN separation.


GN Screw Press Unit for South American Client

GN screw press unit also named screw press sludge dewatering machine, it’s a kind of economic and environmental friendly sludge dewatering equipment.

GN dewatering screw press is composed of fully automatic control cabinet, clocculation modulation box, sludge thickening and dewatering device and liquid collecting tank. It’s widy used in sewage treatment project of municipal, food, pharmaceutical and other industrical.

The equipment model in this order is GNDL301, the inner diameter of the dewatering screw assembly is 300mm, and the material is SS304 stainless steel, Manifold inlet and outlet form is flange.

Actually, In terms of material selection, stainless steel 304 is selected for the parts of GN screw press machine in contact with sludge in order to aviod any corrosion, according to the specifical requirements of customer or specific material conditions, higher grade stainless steel material can also be selected, for example SS316 or duplex stainless steel 2205.

The equipment shell can be opened from the top to facilicate the operator to check the opreation status of the dewatering screw and ensure the stable operation of the equipment.

For more information, please contact GN to get more details.

sludge vacuum pump

GN Solids Vacuum Pump is fully powered by compressed air to transfer solids, powder, slurry, sludge etc. GN Solids Vacuum Pump is a compact, robust, and efficient pump which is capable of recovering material via 25″hg of vacuum and delivering the over 500 meters. GN Solids vacuum pump single unit is available in 10 m3/h, 20 m3/h and 40 m3/h. GN also is capable to design and make Group Pump Unit in one skid.

Material transfer applications: 
1.Waste mud and waste solids  discharged from shale shaker, mud
cleaner and centrifuge
2.Drilling mud transfer
3.Waste pit cleaning
4.Hazardous waste recovery
5.Oil sludge, tank bottoms residual
removal and transfer
6.Barge holdings and vessel
bottom clean out
7.Bulk tank and silo transfer of material 8.Sand; Course, fine, conventional
and frac sand
8.Diatomaceous earth 10.Animal waste etc

sludge vacuum pump Advantages

Air operation, no need electric power, suitable for hazardous area application.

Powerful self- suction with long transfer distance. Suction distance up to 50 meters, discharge distance up to 500-1000 meters.

Widely application for transferring liquid, wet sludge and solids.

Transferred solids size Maximum 50mm or 75mm, sludge solids content up to 80%.

Compact structure for easy to move.

None of rotating parts inside the cavity, less wearing for long lifetime.

Automatically and continuously working is available with easy operation and maintenance.

For more informatin, please freely contact GN.

GN decanter centrifuge

The working principle of the centrifuge is as follows: the rotating drum and the spiral rotate at a certain differential speed in the same direction, the material is continuously introduced into the inner cylinder of the feeding spiral by the feed pipe, and is accelerated into the rotating drum. Under the action of centrifugal force field, the heavier solid substance is deposited on the wall of the rotating drum to form a sediment layer. The feed screw pushes the deposited solid phase continuously to the end of the drum cone and drains out of the machine through the slag discharge port. The lighter liquid phase forms the inner liquid ring, which continuously spills out of the drum through the overflow port at the big end of the drum and drains out of the machine through the drain port. This function continuously feeds, separates, washes and discharges at full speed. It has the characteristics of compact structure, continuous operation, smooth running, strong adaptability, large production capacity and easy maintenance. Suitable for separating suspensions containing solids with particle size greater than 0.005mm and concentration range of 2-40%. Widely used in chemical, light industry, pharmaceutical, food, environmental protection and other industries.

GN Decanter Centrifuge Function

1)Dewatering sludge / mud and suspensions

2)Thickening sludge or mud

3)Clarifying different type liquids

4)Separating 3-phase mixtures, i.e. two immiscible fluid phases and a solid phase

5) Classifying solids in a wet suspension by grain size

6) Separation of solids according to various densities

If you want to know more about the sludge dewatering centrifuge, please feel free to contact GN Separation.

GN solid-liquid separation decanter centrifuge

When you need separate solid /liquid mixtures with high solids content, you can choose a decanter centrifuge.Decanter centrifuges can be optimally adjusted for specific applications. Applications range from sludge dewatering to classification or wet classification to solid classification.

GN decanter is a horizontal,continuously working and continuously spiral discharging sedimentation centrifuge.It is used in a variety or industries for separating all kinds of solid liquid suspension,defecating liquid phase with graded grains,and dehydrating sludge.

Main Characteristics
1.Continuous working,spiral discharging,high capacity.
2.Controlled by two motors,rovolving drum can be adjustable two stage separately.
3.Wide applicability for chemical,oil,foodstuff,pharmacy industries and green industry in which solid-liquid separation is required.
4.Suitable for various products,capable for separating wide ranging solid phase grains(0.002-2mm),especially when separating solid phase has different size grains

Special Allocation
Following allocation can be possible to meet customer’s demand
1.Frequency conversion plus PLC controlling system
2. Protection system for vibration and temperature rising
3.Feeding speed control
4.Gas-liquid separation device on liquid outle