How to Use Screw Pump Correctly as a Feeding Pump for Decanter Centrifuge?

Oct 15, 2013

Screw Pump is an ideal pump as a solids control equipment for feeding decanter centrifuge without shearing or agitating the drilling mud in the solids control system. It is good for use and can operate perfectly in the oilfield work. Screw pump is available for option with complete stainless steel body, KOSUN Screw Pump can drive by coupler, or adjust the speed by using variable speed motor, this is specially suitable for feeding the variable speed decanter centrifuge. It is consisted of triangle V-belt, gear box, etc. G Series Screw Pump is with less accessories, compact structure, small volume, easy maintenance, rotor and stator are wear parts of this pump, it is convenient to replace. The stator is made of elastomeric material, so screw pump has particular advantages than other pump to transfer the fluids of high viscosity and hard suspended particles included.
 


 

Precautions in Using Screw Pump

1. Fully fill the pump chamber with drilling fluids, if the media is too viscous, then inject into other liquids; inject the mud from the pump inlet connection, and rotate the pump by hand along the running direction of the motor to make the mud fully fill the suction chamber.

2. Open the screw pump inlet valve and outlet valve (the valve is fully opened to prevent overload or no load suction), start the motor.

3. The pump should be started under the condition of fully opening the inhale row valve and bypass valve to minimize the start load. Gradually close the bypass valve after the motor reaching the rated revolution.

4. Check the shaft seal when the pump is running, drop-shaped leakage and small amount of leakage is allowed. Leakage not exceeding 20-30 seconds/drop is considered normal. Check the pump discharge capacity, vibration as well as noise. If any anormaly happens, you should stop the pump and solve the problem immediately. Apart from screw pump, KOSUN also provides shear pumpsubmersible slurry pumpcentrifugal pump, they can fulfill the different need for delivering drilling fluids in solids control system.