Patent ID: 8894047

Claim:
A stirring arrangement comprising: a rotating stirring body comprising a stirring body hub and stirring blades mounted on the stirring body hub for stirring fluids, and a gas supply device supplying a gas to be dispersed by the stirring body, wherein the gas supply device comprises a rotating distribution bushing which rotates with the stirring body hub and is arranged coaxially with and below the stirring body hub and includes an interior space for receiving the gas and a stationary supply line, with the stationary supply line having a sealed connection implemented with a hydrostatic seal for fluid communication with the interior space of the rotating distribution bushing, and outlet lines in fluid communication with the interior space and co-rotating with the interior space, wherein the outlet lines comprise outlet openings arranged in immediate vicinity of the stirring blades and within a volume swept by the stirring body, and discharging the gas at desired locations in a corresponding desired flow direction.