Purification or clarification of mineral oils used in marine installations and power stations (fuel and lubricating oils).
Separation takes place in a solids-retaining bowl that can be arranged for either clarification or purification. In both cases, the contaminated oil is fed into the separator through the centre, and it is separated by centrifugal force into its various phases, the heaviest phase (sludge and water) being forced outwards to the periphery of the bowl. The accumulation of sludge is periodically removed from the bowl by hand.
The oil is pumped, heated, and separated as shown in the figure. A liquid seal in the separator bowl prevents the oil from escaping through the water outlet. If this seal is broken, an alarm device is activated. With unmanned engine rooms, the
signals are transmitted to a remote control unit. When the seal is broken, the three-way valve shuts off the oil feed and the oil is recirculated until the fault is corrected.
How it works
Separation takes place in a solids-retaining bowl arranged for either clarification or purification. In both cases, contaminated oil is fed through the centre, and centrifugal force separates it into phases. The sludge is forced outwards so it's easy to remove. A liquid seal in the bowl prevents oil from escaping through the water outlet.
MAB bowl arranged as a clairifier for seperating oils containing sludge and very small quantity of water.
MAB bowl arranged as a purifier for seperating oils containing sludge and an appreciable quantity of water.