Flow device for the removal of impurities from a stream of raw gas and in particular for separating soot particles from combustion exhaust gas, wherein the flow device comprises the following: a plurality of flow segments which each comprise one or more flow bodies and through which the stream of raw gas is arranged to flow for removing impurities in a cleaning mode, wherein the stream of raw gas is arranged to be supplied to the flow segments via a raw gas supply system and wherein a stream of clean gas that has been cleaned by means of the flow segments is removable from the flow segments by means of a clean gas removal system ; a regeneration device for regenerating the flow segments , wherein the regeneration device comprises a docking device for establishing a temporary connection between one or more flow segments that are to be regenerated on the one hand and a heating device and/or a flushing device of the regeneration device on the other hand, characterised in that in the cleaning mode the flow through the flow bodies is in a radial direction from the interior to the exterior, wherein the flow segments are arranged at least approximately in the form of a ring, wherein the flow bodies and/or flow body receptacles for holding the flow bodies project outwardly from a base body of the respective flow segment in the radial direction taken with respect to a common central axis and/or a common axis of symmetry of the flow segments , and wherein each flow segment comprises a respective base body and one or more flow bodies and/or flow body receptacles for accommodating the flow bodies which project away from the base body and in particular project radially outwardly. a plurality of flow segments which each comprise one or more flow bodies and through which the stream of raw gas is arranged to flow for removing impurities in a cleaning mode, wherein the stream of raw gas is arranged to be supplied to the flow segments via a raw gas supply system and wherein a stream of clean gas that has been cleaned by means of the flow segments is removable from the flow segments by means of a clean gas removal system ; a regeneration device for regenerating the flow segments , wherein the regeneration device comprises a docking device for establishing a temporary connection between one or more flow segments that are to be regenerated on the one hand and a heating device and/or a flushing device of the regeneration device on the other hand, characterised in that in the cleaning mode the flow through the flow bodies is in a radial direction from the interior to the exterior, wherein the flow segments are arranged at least approximately in the form of a ring, wherein the flow bodies and/or flow body receptacles for holding the flow bodies project outwardly from a base body of the respective flow segment in the radial direction taken with respect to a common central axis and/or a common axis of symmetry of the flow segments , and wherein each flow segment comprises a respective base body and one or more flow bodies and/or flow body receptacles for accommodating the flow bodies which project away from the base body and in particular project radially outwardly. <EOS>