FIELD: transport.
SUBSTANCE: invention relates to railway transport operated, for example, in open-cast mines. Device comprises sand feed tubes with nozzles to direct air-sand jet to wheel central track part and toward wheel flange interacting with rail head fillet. At curvilinear track sections, sand feed nozzles feed sand exclusively to central zone of rail-to-wheel contact and inner rail and to wheel flange at outer rail inner side. Sand feed to wheel flange plus lubrication of curved track outer rail inner face facilitates adhesion at said track sections.
EFFECT: reduced sand consumption, better adhesion at operation in open-cast mines.
2 cl, 2 dwg
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