| 摘要 |
Method and device to scatter preheated sand, crushed stone, urea, road salt, etc. (12) from a spreading vehicle (1) onto aeroplane runways and roads (4) in order to counteract slipperiness caused by snow, ice, sleet, mud and the like (3) in which preheating of the material (12) is via an electronically controlled LP-gas driven burner (8) in close association with feeding (5, 6, 7) of the material (12) from the spreading vehicle (1) to the surface (4) which is to be treated, in such a fashion that the flames from the burners (8) have direct contact with the material which is to be preheated (12). The process can be remotely controlled (11) from the driver cabin (13) of the spreading vehicle (1). The heating system (8-11) can be conveniently mounted to an existing spreading vehicle. |
