Railway wagon tippler
RAILWAY WAGON TIPPLER (EN: car dumper, tippler, wagon tippler; DE: Wagenkipper; FR: basculeur de wagons; ES: volcador de vagones; RU: вагоноопрокидыватель) is the built structure for the mechanized unloading of the bulk flowing materials (rock mass, and others) from the railway open wagons, and from the flat wagons, into the receiving device (into the hopper, or into the open pit); the unloading is performed using the toppling or tilting the vehicle by the railway wagon tippler.
They use the railway wagon tipplers within Russia since the end of the 19th century; the first railway wagon tipplers have been installed within the Mariupol port (now the Zhdanov port). Depending on the type of the rolling stock, and also on the conditions for the operation, they distinguish the railway wagon tipplers: of the rotary (circular) and lateral types, which are toppling the open wagons and flat wagons into the transverse direction; of the end type, with the longitudinal inclination of the turntable for the angle of 45-60 degrees, which is necessary for the self-flowing unloading of the materials from the open wagons with the hinged end walls.
The rotary railway wagon tipplers are most suitable for the unloading of the open wagons with the great (60, 93, and 125 tonnes) load lifting capacity. The structure of the modern rotary railway wagon tippler includes the rotating rotor, which is based on the rollers, with the platform for the installation of the railway wagon. The rotation of the rotor is performed by the electrical mover. The railway wagon, which is loaded, is being fixated within the rotor by the special device, rotates together with the rotor, and unloads itself. For the cleaning of the walls and bottom of the open wagon, they equip the railway wagon tippler with the attached vibrators. The major advantages of the railway wagon tippler of this type, in comparison with other types, are the simplicity of the structure, the relatively small metal consumption, the high performance (up to 30 cycles per hour) and reliability, and the significantly lesser working power consumption. The major disadvantage is the necessity for the deepening of the top level of the receiving hopper at the distance of 2.5-3 metres below the level of the rail head of the unloading railway track. The lateral railway wagon tipplers are sub-divided into ordinary and tower-shaped. The unloading is performed at the expense of the rotation around the axis, which is situated outside the open wagon. The major advantage of the railway wagon tippler of this type is the possibility for the lifting of the top level of the receiving hopper to the distance of 3.5-4 metres above the level of the rail head of the unloading railway track. As the result of this possibility, there is significantly decreased the depth of the receiving open pit (this fact has the important significance in case of the watered soils, and in case of the work within the region with the permafrost), and the height for the falling of the lumps of the material, which is being unloaded, is somewhat decreased. The major disadvantages are the low performance (up to 20 cycles per hour), the complexity of the structure, the increased metal consumption, and the increased working power consumption. The railway wagon tipplers of the end type are used mostly for the reloading of the coal and other cargoes from the open wagons with the narrow gauge into the open wagons with the broad gauge. The railway wagon tipplers of this type distinguish themselves with the increased labour consumption, with the duration of the shunting operations during the unloading, and with the decreased performance (up to 15-18 cycles per hour).
For the protection of the railway wagon tipplers, and of the receiving hoppers, against the atmospheric precipitation, and also for the prevention of the spreading of the dust, which is being created during the unloading, they construct the buildings-shelters (tents) above these installations. They install within these tents the overhead cranes for the performance of the installation works during the installation and repair of the railway wagon tipplers, for the lowering of the equipment and spare parts into the reception open pit. The perfecting of the railway wagon tipplers is being conducted along the direction for the increasing of their throughput capacity, for the automation of the processes for the unloading, and so on.
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