The mixture fluid to be processed are fed to the bowl from feeding pipe,under the effects of centrifugal force,solids which has heavier density collects on the bowl wall,it include jams and impurities,collected in sediment holding space.After a while,the separated solids are ejected from the bowl at controlling of PLC.The intervals at which de-slugging have to take place depend on the quality of the mixture fluid.De-slugging include automatic de-slugging,total de-slugging,partial de-slugging.Normally customer don’t need total de-slugging ,put up partial de-slugging under the condition of effects of automatic de-slugging are bad.The interval between two partial de-slugging is up to two minutes,and electric current is normal.Then re-establish the automatic de-slugging interval.