62 GPM* : Self-Cleaning Disc Stack Centrifuge : Alfa Laval MOPX213
Alfa Laval WHPX513 Crude Oil Centrifuge
Applications: The WHPX 513 is a solids-ejecting centrifuge. It is used for cleaning of cutting and grinding oils.Waste oil can be recovered and used as fuel or fuel supplement. Upgrading of residual fuels.
Working principle: The feed is introduced to the rotating centrifuge bowl(fig 2) from the top via a stationary inlet pipe (1), and is accelerated in a distributor (2) before entering the disc stack(3). It is between the discs that the separation of the two liquid phases and the solids takes place.The oil phase moves towards the center of the bowl and is discharged by a paring disc (4).The water phase leaves the bowl over the top disc (5) and through a paring disc (6).The heavier solids phase is collected at the bowl periphery, from where it is discharged intermittently.The solids discharge is achieved by a hydraulic system below the separation space in the bowl, which at preset intervals forces the sliding bowl bottom (7) to drop down,thus opening the solids ports (8) at the bowl periphery.The bowl is mounted on a vertical spindle (9) driven by a horizontally mounted motor, via a worm gear.
Features: The WHPX513 is characterized by the following main features: The heavy-duty design constructions of the WHPX513 means that those parts, e.g. sliding bowl bottom and sludge ports, subjected to heavy wear by feed solids, have been specially erosion-protected. The centrifuge utilizes a unique technique, controlled partial discharge for intermittent removal of accumulated sludge from the bowl during operation. The sludge is ejected in small portions at frequent intervals with no interruption of oil-flow through the centrifuge. Only sludge and a small volume of water is ejected during the very short period of bowl opening with virtually no oil losses