Abstract: A device for treating soils or road surfaces includes a machine frame (1) carrying a working roll (4) in a working roll housing (8) defining a working space (6). The roll housing (8) is provided with a spraying mechanism (10) for binder or water having at least one outlet nozzle (12) opening directly into the working space (6). A controllable closing device (18) has a closing element (22) which, in an open position, unblocks the outlet nozzle (12) and in a first closed position, closes the outlet nozzle (12). The closing device (18) is capable of triggering an additional movement of the closing element (22) beyond the first closing position such that at a second closed position, material accumulations in and/or beyond the outlet nozzle (12) are removed.

Abstract: In a device for treating soils or road surfaces comprising a machine frame (1) at which a working roll (4) is arranged below a roll housing (8) defining the working space (6), with the roll housing (8) being provided with a spraying means (10) for a binder or water having at least one outlet nozzle (12) directed into the working space (6), it is provided that the at least one outlet nozzle (12) comprises a controllable closing means (18) having a closing element (22) which, in an open position, unblocks the outlet nozzle (12) and, in a closed position, closes the outlet nozzle (12), and that the closing means (18) is capable of triggering an additional movement of the closing element (22) beyond the closing position such that material accumulations in and/or before the outlet nozzle (12) can be removed.

Abstract: A device for working road surfaces comprising an automotive running gear (2) with a working roll (4) enclosed by a cover (8) forming a working chamber (6), and a drive motor for providing the power required for driving the working roll (4) and the travel, it is provided that a plurality of adjacent mixing components with foam outlet nozzles (14) for producing foamed bitumen are arranged in an upper portion of the cover (8), hot bitumen supplied from a bitumen reservoir via supply lines (16, 42) and a bitumen injection nozzle (18) together with water supplied from a water reservoir via a water injection nozzle (22) may be mixed under pressure in an expansion chamber (26) of the mixing components, and that the spray jet of foamed bitumen leaving the foam outlet nozzles (14) is directed into the working chamber (6) and becomes mixed into the construction material mixture granulated by the working roll (4).

Abstract: In a device for working road surfaces comprising an automotive running gear (2) with a working roll (4) enclosed by a cover (8) forming a working chamber (6), and a drive motor for providing the power required for driving the working roll (4) and the travel, it is provided that the cover (8) has means (10) for producing foamed bitumen provided with a plurality of adjacent mixing means (12) with foam outlet nozzles (14), hot bitumen supplied from a bitumen reservoir via supply lines (16, 42) and a bitumen injection nozzle (18) together with water supplied from a water reservoir via a water injection nozzle (22) may be mixed under pressure in an expansion chamber (26) of the mixing means (12), and that the spray jet of foamed bitumen leaving the foam outlet nozzles (14) is directed into the working chamber (6) and becomes mixed into the construction material mixture granulated by the working roll (4).