GN Solids Control is an expert in mud system for tunneling. Just a week ago, GN delivered a set of mud system with dewatering unit to a Singapore customer. Besides, mud system for tunneling, GN also provides mud system for HDD, solids control system for oil and gas drilling.
Dewatering unit is equipped to separate extremely fine particle in the drilling mud to lower the proportion, thus ensuring the high performance of drilling fluids.
Sometimes, we do not need dewatering unit for the processed mud with particles over 5 microns being removed out is satisfying, but if not, we need this unit to separate finer solids out to meet the requirement for drilling, that’s why we need it in this system. This dewatering unit is a suitable solution.
GN Dewatering Unit Configuration as below:
1. Coarse Solids Separation System
GN’s dewatering unit is specially for drilling project, thus before the dewatering unit, there is a 2-stage drilling mud recycling system including 1 unit GNZS705-HB shale shaker with double layers screen. And 1 unit GNZJ703E-3S desander unit. With the two equipment, large size solids are removed out.
2. Two Tank Compartments PAM Mixing Unit
GN’s PAM mixing unit has adopts 2 tanks design with a pre-mixing tank on top. The flocculate dry powder is added from the hopper on tank top and then delivered to pre-mixing tank. As per the response from the level gauge located in either mixing tank, the pre-mixed chemicals would flow into the mixing tank for full mixing and storage. All process here for chemicals mixing is automatically controlled.
3. Dewatering Decanter Centrifuge.
Used as dewatering centrifuge, GNLW553G separates flocculated colloidal particles. There are two screw pumps, one feeds flocculants to the centrifuge, one feeds active mud to centrifuge. The two feeding process are done at the same time, so the unltra fine solids will be flocclulated larger and then separated out.
Composed of the three main parts, GN made mud system will enjoys a high performance.