A screw pump is a positive displacement pump that uses one or several screws to move fluids or solids along the screw (s) axis. In its simplest form, a single screw rotates in a cylindrical cavity, thereby moving the materials along the screw's spindle. This ancient construction is still used in many low-tech applications, such as irrigation systems and in agricultural machinery for transporting grain and other solids.

In solids control system of drilling, screw pump is used to feed decanter centrifuge. Screw pump is a positive displacement pump that uses one or several screws to move fluids or solids along the screw axis. It is an ideal pump for feeding decanter centrifuge. The major benefit to use a positive displacement pump is that it will not break the fine solids to smaller ones, so the centrifuge can separate the solids easily. Centrifugal force of centrifugal pump will cut the solids to smaller, it is not good for centrifuge’s operation.

KOSUN Screw Pump is an ideal pump to feed decanter centrifuge, the fluids flow along with the shaft, inner flow speed is slow. Capacity remains pressure is steady, without vortex and agitating. The screw pump can also be used in the drilling waste management for wet mud and cutting transportation. The shaft of the pump is made from stainless steel, screw pump is available for option with a complete stainless steel body. The stator is made of elastomeric materials, so it has particular advantages than other pumps to transfer the fluids of high viscosity and hard suspension containing particles. The pump of compact structure, small volume, easy maintenance, rotor and stator are wear parts of this pump, but they are easy to replace.

Construction of KOSUN Screw Pump

The construction of screw pump is coherent and very straight-forward in its production. Screw pump has three screw spindles, one of which is driver and the other two are driven. There is a fine clearance between these screws and this fine clearance is responsible for the pumping action of the fluids. Drive to the main screw is given through the motor which is coupled to this by proper coupling.

KOSUN is a leader in China’ s solids control industry and expert in drilling waste management. KOSUN is capable of providing customers with such four series as oil & gas drilling solids control equipment, centrifuges, drilling waste management equipment and drilling security equipment, including 25 categories of products, and can also customize packaged design and matching products of oil & gas drilling rigs for drilling contractors. The products provided by KOSUN are extensively used in oil & gas drilling and workover, coalbed methane drilling, shale gas drilling, water well, geothermal well drilling, trenchless horizontal directional crossing projects, mine gravel staged treatment, tailings treatment, rive dredging works, municipal environment-friendly sewage treatment, industrial wastewater treatment, fruit juice purification, waste oil recovery, purification treatment, etc.