Tag: screw pump

Drilling Mud dewatering centrifuge Unit for Europe Client

Recently 2 sets of drilling mud dewatering centrifuge units are ready for shipment for Europe client. Each set of dewatering centrifuge unit including 1 set of GNLW364FT dewatering centrifuge, 1 set of chemical dosing system, 1 set of feeding screw pump and 2 sets of containers.


The GNLW363FT dewatering centrifuge is a 2 phase separation decanter centrifuge, the bowl diameter is 14 inch, the bow length is 59.5 inch, the bowl L/R ratio is up to 4.2, the max speed is 3900rpm, the max G force is up to 3063G, the beach angle will be designed as per the application.
The bowl main parts are made of duplex stainless steel SS2205 or SS2304 by centrifugal casting, which is superior to the performance of SS304 or SS316L. The slag outlet and mud distribution port is protected by the replaceable hard alloy sleeve, the carbide scraper are installed on the top and side of the slag discharge port of the bowl. The main material of the screw is duplex stainless steel SS2205 or SS2304. The centrifuge main motor, back motor and pump motor is controlled by the positive pressurized VFD control panel. The centrifuge feeding pump is made of Netzsch brand screw pump to adjust the feeding rate by adjust the motor frequency.


The chemical dosing system is customized design as per client’s requirement, including automatic powder chemical dosing system and manual liquid chemical dosing system, it can be used for both powder chemical and liquid chemical preparation, storage and dosing.
All the equipments are installed in the container for convenient transportation and operation.


Except for GNLW363FT dewatering centrifuge, GN solids control also produce other size decanter centrifuge, including 9 inch bowl, 14 inch bowl, 18 inch bowl, 22 inch bowl, 30 inch bowl, with L/R ratio 3 or 4 for different requirement.

Offshore Drilling Mud Centrifuge and Cuttings Dryer to Asia Oilfield Service Company

Recently one batch of offshore drilling mud centrifuge and cuttings dryer are ready for delivery to Asia oilfield service company. The equipments list is as below：


1. 6 units of GNLW363D-FHD Fully Hydraulic Drive decanter centrifuge
2. 2 units of GNCD930G vertical cuttings dryer with skid


3. 8 units of variable speed screw pump, 2 units as flushing pump for vertical cuttings dryer, 6 units as feeding pump of fully hydraulic drive decanter centrifuge
The features of GNLW363D-FHD Fully Hydraulic Drive decanter centrifuge including:


1. ATEX motor and control panel, the cable meets the requirements for use in marine environments.
2. The hydraulic bowl and scroll drive system drived both the hydraulic motor ROTODIFF and the bowl of the decanter centrifuge from hydraulic pump unit by two hydraulic oil circuits.
3. The centrifuge can be used for high temperature ambient up to 55 C degree for heavy mud, suitable for zone 1 and zone 2 application.
4. VISCOTHERM Fully hydraulic drive system
5. Max speed is up to 3600rpm, max G force is up to 2610G.
6. The bowl material is duplex stainless steel SS2304 from centrifugal casting, the screw material is stainless steel 304.
7. The solids discharge port and fluids distribution port is protected by tungsten carbide inserts, the screw is protected by tungsten carbide tiles
8. The bearing is SKF brand
During centrifuge working process, the bowl speed ,differential speed, fluids pool depth, feed rate, flocculant consumption can be adjusted according to actual situation. The higher bowl speed, the drier solids discharge, more clear liquid effluent to be get. The lower differential speed, the longer time of the solids phase stay inside the bowl, so the discharged solids will be drier.
If you need fully hydraulic drive centrifuge, vertical cuttings dryer, pls contact with GN solids control.