Better Separation and Large Capacity of KOSUN Decanter Centrifuge

Generally, one oil drilling rig need at least two sets centrifuge (one high speed & one low speed). The high speed centrifuge can be used to cut mud weight and the low speed centrifuge can be used to remove big particles and recovery barite. The centrifuge model for high speed & low speed is different type usually, with different bowl size, different pulley, different belt, different motor (if it is motor drive), different control panel. That is to say, the decanter centrifuge engineer at rigsite should know both high speed model centrifuge & low speed centrifuge model very well. This require longer time to practice and shift from different models.

Based on this,KOSUN VFD Explosion-proof Control Unit--Power generated by frequency conversion control tank can meet the power demands of master and auxiliary electric motor;VFD Explosion-proof Control Unit features in effective heat dissipation which can meet the requirements of terrible production condition in oilfields and protective precautions like over-current, overload, overheat, lack-phase, etc.;VFD Explosion-proof Control Unit can display the current and rotary speed of master and auxiliary electric motor so as to adjust their frequence;The main eletric parts (like contactor, thermal relay, circuit breaker, etc) are those of Schneider while the rest are domestic quality parts.

Advantages of KOSUN Drilling Decanter Centrifuge
1.Longer bowl: it adopts innovative longer bowl, allowing drilling fluids to stay longer within bowl in order to get finer solids and separation point.
2.Corrosion-proof and wear-resisting bowl made from alloy materials. Snap-on hard alloy sleeves are fixed at the sediment outfall of taper cylinder.
3.Corrosion-proof and wear-resisting spiral propeller is welded with a layer of wearable tungsten carbide on the residue discharge surface,which is polished to smoothness.
4.The machine also contains bearings manufactured by German FAG and Swedish SKF which comply with SIEMENS/Schneider ATEX or IEC Ex.
5.KOSUN Decanter Centrifuge matched with international brand feed pump,which has been specifically designed to provide a quick and easy way to disassemble,de-rag and maintain a Progressive Cavity Pump in-situ,eliminating the costly maintenance and down time that servicing can often cause.

The centrifuge is driven by two motors, master one and auxiliary one, of which the former and the latter drives screw propeller. After the machine is started up, the drilling fluids treated by desilter will be pumped to the narrow end of rotary drum via screw pump which will further push it into propeller. Then it will be thrust into the inner side of rotary drum via the holes of screw pump propeller by the high-speed rotation. At this moment, the rotary drum and the screw propeller will generate a 35:1 differential rotational speed as well as a centrifugal field where the solid phase will be rapidly separated from suspension due to their density and size differences. Then, the separated solids will move along the blocks of screw propeller to the narrow end of rotary drum and discharge from the round holes while the treated suspension to the broad end of rotary drum and discharge from elliptical holes of straight cylinder.