Abstract: A decanter centrifuge with a rotating bowl is provided with at least one solids discharge port and at least one clarified liquid discharge port and a screw conveyor disposed coaxially within the rotating bowl to be rotated in the same direction with a differential rotational speed. A feed suspension to be separated is introduced into a ring shaped space formed between the rotating bowl and the screw conveyor through a central feed pipe fixed to the end of the screw conveyor and supported in at least one bearing. The feed suspension is separated by centrifugal force into a solid phase and a liquid phase so that the solid phase is discharged from the solid discharge port and the liquid phase is discharged from a clarified liquid discharging apparatus. A sealing of the feed pipe and the bowl shaft at the feed end of the feed pipe is provided as adjacent double axial sealing.

Abstract: The invention relates to a decanter centrifuge with a rotating bowl (1) provided with at least one solids discharge port (11) and at least one clarified liquid discharge port (15) and a screw conveyor (2) disposed coaxially within said rotating bowl rotated in the same direction with a differential rotational speed, where a feed suspension to be separated is introduced into a ring shaped space formed between said rotating bowl (1) and said screw conveyor (2) through a central feed pipe fixed to the end of the screw conveyor and supported in at least one bearing and can be separated by centrifugal force into a solid and a liquid phase so that said solid phase is discharged from said solid discharge port and said liquid phase is discharged from said clarified liquid discharging apparatus.

Abstract: The method includes interacting between a first proximity transceiver which is associated to the customer device, and a second proximity transceiver; and generating thereby interaction information. The method further includes defining an TR069 Management protocol object called proximity-object and defining thereby at least one TR069 Management protocol parameter related to the interaction information, and furthermore interchanging between the server device and the customer device at least one name-value pair of the at least one parameter of the proximity-object by means of TR69 Management protocol messages.

Abstract: A decanter centrifuge (1) has a rotor comprising a helical conveyor (2) and a drum (20). The conveyor (2) comprises a conveyor hub (3) and helical flights (4), and the drum comprises an inner shell (21) of steel and an outer shell (22) of fiber reinforced plastic. The conveyor (2) consists of a shaft of tube form (11), primarily made from carbon fiber reinforced resin, and helical flights (4), primarily made from polyurethane. The flights (4) of the helical conveyor are formed in such a way that they all the time is in contact with the inner periphery of the drum (31). The division of the drum in an inner and an outer shell causes the mass of the drum to be reduced considerably.