Pressurized Siphon Peeler Centrifuge

Pressurized Siphon Peeler Centrifuge Theoretically, the same principle can further increase driving force with overpressure in the process housing for example, 3-bar overpressure would produce up to 4-bar pressure gradient across the cake. In practice, to date this has not been utilized due to the complexity of the installation. 

Rotary-Siphon Peeler Centrifuges In this type of centrifuge, a partial vacuum is drawn on the outer diameter or tne filter such that the filtrate flows through the cake under both centrifugal force as well as a positive pressure difference of about I atm or less. Thus, a higher rate of filtration takes place due to the increased driving force. 

The increased capacity of peeler centrifuges has been obtained by the use of a siphonic action to enhance the effective pressure differentials, as shown in Figure 58.18. Here the filtrate is not centrifuged through the drum perforations immediately after penetrating the filter cake, as occurs in standard peeler centrifuges, but collects behind the filter cloth. This chamber is connected to a ring cup that behaves... 

Increased capacity of peeler centrifuges has also been obtained by use of a siphonic action to enhance the efrbctive pressure dififerentials, as shown in Figure 8.31. 

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