The used water based mud normally will use chemical enhanced centrifugation to enhance the treat and disposal. The additives will be mixed with the used mud, so the solids accumulated as bigger size and be easily treated by decanter centrifuge.
A dewatering unit normally including: a mixing tank with mud agitator, the chemical dosing system installed on the mixing tank skid, the decanter centrifuge installed on top of mixing tank, the decanter centrifuge feed pump installed on the mixing tank skid. If required, we can install the dewatering centrifuge unit inside a standard container for water proof and sun proof. The flocculants and coagulates will be added to enhance the remove of fine solids in the used mud.
The decanter centrifuge should be drived by VFD control panel, for example, GNLW363D-VFD decanter centrifuge, the max speed is 3900rpm, the normal operated speed is 3200rpm, according to the mud density and solids size, the user can adjust the frequency to adjust the G force to separate different solids. The VFD control panel is positive pressurized VFD control panel, the main motor, back drive motor and pump motor are from world famous brand drive, to adjust the frequency from touch screen.
The chemical dosing unit including chemical mixing tank with agitator, screw conveyor to transfer the chemical powder to chemical mixing tank, 2 chemical dosing pump( one in use and one as back up), hopper, pipelines, valves, control panel, etc.
The advantages of WBM dewatering unit:
- Continuous working, if required, it can work continuously 24 hours, when decanter centrifuge is stopped, do flushing and maintenance regularly.
- Reduce environmental impact, the treated water can be disposal and reused to prepare for new drilling fluids.
- The discharged solids are dry enough to be collected by trucks.
To get more details of dewatering unit, pls contact with GN solids control.