The decanter centrifuge is mainly composed of a rotating drum, a spiral, a differential system, a liquid level baffle, a driving system and a control system. It is a special equipment for solid-liquid separation designed for the characteristics of petroleum drilling fluids. It can complete various processes such as feeding, centrifugal sedimentation, and unloading at full speed. It is mainly used to recover barite, remove fine solids, and reduce drilling fluids. The solid content of the drilling fluid controls the density and viscosity of the drilling fluid, ensures the performance of the drilling fluid, and plays an important role in rapid drilling.
Factors Affecting the Use Effect of Decanter Centrifuge
The use effect of the decanter centrifuge is divided into adjustable factors and non-adjustable factors. Now we will explain them separately. If we understand the principle of action, we can effectively control it in use. The unadjustable mechanical factors include: drum diameter and effective length. Drum half cone angle. Pitch. Screw type. Adjustable mechanical factors are: drum speed, differential speed (difference ratio), liquid ring layer thickness, process factor.
There are many factors that affect the dewatering effect of the decanter centrifuge, and each factor affects each other. Therefore, the treatment effect is the result of the combined effects of the above-mentioned factors. The selection of the centrifuge should be carried out in accordance with the actual situation of the project, and the operating parameters should be adjusted. It should be considered comprehensively from the expected mud cake moisture content, solid content and economic efficiency required by the disposal method of the dehydrated mud cake.
KOSUN- China Solids Control Leader&Drilling Waste Management Expert
Contact person: Lily Wang