Regulating device and method for drying and temperature regulation of ballast bed

Abstract

Conditioning device (24) and method for drying and / or controlling the temperature of a ballast bed (12) of a railway track system (10), wherein the railway track system (10) has sleepers (14) resting on the ballast bed (12) and rails (16) resting on the sleepers, wherein the conditioning device has a bogie (30) for moving the conditioning device (24). An outlet nozzle (36) for blowing temperature-controlled air into the ballast bed (12) via at least one blowing-in region (26) positioned between two adjacent sleepers (14) is connected to the bogie (30), as is at least one cover plate (42) for essentially air-tight coverage of an upper side, pointing essentially in the direction counter to the direction of gravity, of a side strip (20), provided next to the sleepers (14) in the direction of travel, of the ballast bed (12). In a method for drying and controlling the temperature of a ballast bed (12) of a railway track system (10), an upper side of the ballast bed (12) and / or at least one sleeper (14) and at least one rail (16) are sealed in an essentially air-tight fashion outside a blowing-in region (26) before temperature-controlled air is blown into the ballast bed (12) via the blowing-in region (26).

Description

technical field

[0001] The invention relates to a conditioning device (Konditioniervorrichtung) and method for drying and tempering of a track bed (Schotterbett), by means of which the track bed (Gleisbett) of a railway track installation (Eisenbahngleisanlage) can be dried and tempered so that the subsequent The track bed is at least partially foamed. Background technique

[0002] In order to be able to stabilize the track beds of railway track installations and to be able to remove high loads, it is known, for example, to foam-fill cavities of the track beds of railway track installations with polyurethane (PU). For this purpose, isocyanate and polyol are sprayed into the cavity of the track bed, where they react to form polyurethane foam. In order to achieve the defined reactions, corresponding reaction conditions need to be established in a defined way in the ballast bed. In particular, the track bed should be as dry as possible and free from water. It is known, for e...

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