Several factors to modify the working capacity of decanter centrifuge

Now GN Solids Control has various kinds of decanter centrifuges, the handling capacity vary from 40 GPM to 484 GPM. As everyone knows, decanter centrifuge are made and manufactured for separating the drilling solids which diameter is principally below 10 microns. But for unprofessional people, we may not know why the handling capacity could vary a great deal.


You will find some parameters, like the diameter of the bowl, the size of the bowl, the positioning of the liquid outlet, the positioning of the discharge port and also the rotating speed from the bowl along with the rotating speed from the inner propeller. Through these parameters, the bowl’s diameter and also the bowl’s length are a couple of primary factors we usually spoken a great deal.


It is easy to know whenever a bowl having a bigger diameter along with a bigger length, it's a lot more working room space to deal with the drilling liquids meaning it has to possess a bigger capacity.


Sometimes, we'll access one bowl through the ration of length and diameter, which we named f (f=Length/ Diameter) here. Because we usually design the bowl diameter from 9 inch to 22 inch, and also the length from 26 inch to 71 inch, so it’s very common the f is varying from three to eight.


Some designers believe the decanter centrifuge should working in a high-speed and the f should be large. Thinking about the fierce vibration from the whole decanter centrifuge, the rate can't be over 4500 r/m. In the speed of 4500 r/m the interior parts (for example inlet pipe) will damaged in a brief period. Based on the former encounters, rotating speed at 3800 r/m (with bowl diameter in 22 inch and bowl length in 71 inch) satisfies probably the most separation demands.


For finer separation, GN suggests to make use of two decanter centrifuges. Besides, GN has mini decanter centrifuge specifically for diamond drilling. Any particulars, thanks for visiting email to thomas@gnsolidcontrol.com


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