DE-1000 decanter centrifuge is a rotating drum, which is supported on bearings at both ends and has a feeding tube will stand for the material delivered to the machine. Due to the high-speed rotation and friction, materials are accelerated and form a cylindrical liquid ring inside the machine. Due to the centrifugal force, the solid set down to the inner wall of the drum, and the liquid flows out through the rear end of the overflow port. At the front end of the de-1000 decanter centrifuge , its diameter become smaller, form a taper peripheral, its diameter is smaller than the overflow diameter.
There is a slag discharge port at the minimum cone end. This structure ensures that no liquid slag discharged from the mouth. In order to let the solid that accumulate in the inner wall of the drum can be discharged out of DE-1000 Decanters, we should install a screw feeder input in the machine. The installation of the coil will make the clarified liquid change flow from along the axial to soil flow. This spiral flow will make the liquid’s flow ability enhance, and produce agitation effect at the same time. And now, if we turn spiral, make the spiral and the drum to generate a relative speed difference, then will produce a cone forward conveying force to the solid that set down in the drum. So the solid that set down in the inner wall of the drum will be pushed forward by the screw conveyor, and reaches slag discharge port, finally discharged out of the DE-1000 centrifuge by the centrifugal force.
The main role of DE-1000 decanter centrifuge is to separate solids from the liquid (two-phase separation). In a DE-1000 decanter centrifuge, the centrifugal force is a major factor to complete separation. In other words, in the clarification process, the suspended solids in the liquid subjected to action of centrifugal force, and on the contrary the buoyancy and the flow resistance.
The clarify rate that plays a decisive role for DE-1000 decanter centrifuge separation effect is the combined effect of each of these forces. The settling velocity of solid particles is influenced by the DE-1000 decanter centrifuge centrifugal force and the buoyancy and flow resistance generated due to different densities of solid and liquid. Flow resistance depends on the particle size, shape, and the liquid viscosity. For many materials, the viscosity of the liquid is mainly affected by the temperature. The frictional force generated by the liquid and set solid, and the rotation generated by the stirring screws, will produce a comprehensive dynamic effect, this effect will generate a strong effect to DE-1000 decanter centrifuge half-static settlement.