CONVEYING SYSTEM FOR OPEN-CAST MINING

Abstract

A conveying installation that is positionable over an oblique slope of an opencast mine pit may be used to convey raw materials from a lower height level on an extraction level of the opencast mine to an upper height level at a ground level adjacent to the opencast mine pit. At least one conveying container can be loaded with raw materials at the lower height level and unloaded at the upper height level. At least one bearing cable for load-bearing and control and one traction cable for moving the conveying container may be provided. At least at the upper height level, a support element may be disposed, to which the bearing cable is attached and on which the traction cable is guided.

Claims

1-13. (canceled)

14. A conveying installation for opencast mining, the conveying installation configured to be positioned over an oblique slope of an opencast mine pit, wherein the conveying installation conveys raw materials from a lower height level on an extraction level of the opencast mine to an upper height level at a ground level adjacent to the opencast mine pit, the conveying installation comprising: a conveying container configured to be loaded with raw materials at the lower height level and unloaded at the upper height level; a bearing cable for load-bearing and control and a traction cable for moving the conveying container; a support element disposed at the upper height level, wherein the bearing cable is attached to the support element and the traction cable is guided on the support element; a truck offloading station disposed at the lower height level, wherein the conveying container is configured to be guided to the truck offloading station such that the raw materials can be introduced from a truck, which can be driven to the truck offloading station, into the conveying container by way of a pouring process; and a raw material receiving station disposed at the upper height level, wherein the conveying container is configured to be guided over the raw material receiving station such that the raw materials can be unloaded from the conveying container into a raw material receiving means, wherein the conveying installation is configured to be incorporated into a truck transport operation for the raw materials.

15. The conveying installation of claim 14 wherein the raw material receiving station comprises a truck loading station, wherein the raw material receiving means comprises a truck.

16. The conveying installation of claim 14 wherein the raw material receiving station comprises at least one of a bunker station, a crusher station, or a belt installation station into which the raw materials are unloaded from the conveying container.

17. The conveying installation of claim 14 wherein the raw material receiving station is disposed at the upper height level adjacent to the support element.

18. The conveying installation of claim 14 further comprising a traveling carriage on which the conveying container is disposed in suspended fashion, wherein the traveling carriage is guided on the bearing cable, wherein the traction cable is attached to the traveling carriage.

19. The conveying installation of claim 14 further comprising at least one of: a mass-based anchor disposed at the upper height level, wherein the support element is braced to the mass-based anchor at the upper height level by a bracing tension means; or a mass-based anchor disposed at the lower height level, wherein a bracing tension means braces a lower support element to the mass-based anchor at the lower height level.

20. The conveying installation of claim 14 further comprising at the upper height level a drive unit into which the traction cable can be pulled and out of which the traction cable can be deployed, wherein the drive unit is disposed adjacent to the support element.

21. The conveying installation of claim 20 further comprising foundations disposed at the upper height level, wherein at least one of the support element, the drive unit, or the raw material receiving station is accommodated on the foundations.

22. The conveying installation of claim 14 wherein the support element is configured as a hinged support, for which purpose the support element is held by a hinged joint.

23. The conveying installation of claim 14 wherein the support element is disposed at the lower height level adjacent to the truck offloading station.

24. The conveying installation of claim 14 wherein the truck offloading station comprises a truck ramp such that a truck can in the truck offloading station be driven to a height above the conveying container.

25. The conveying installation of claim 14 wherein the conveying container is loadable from an upper container side in the truck offloading station, wherein the conveying container is unloadable from a lower container side in the raw material receiving station.

26. The conveying installation of claim 14 wherein the bearing cable is a first bearing cable and the conveying container is a first conveying container, the conveying installation further comprising a second bearing cable and a second conveying container, wherein the first and second baring cables run parallel to one another, wherein on each of the first and second bearing cables one of the conveying containers is received by a respectively-associated traveling carriage, wherein the traction cable connects the first and second conveying containers for shuttle operation of the first and second conveying containers.

Description

[0023] FIG. 1 shows a conveying installation 1 in an overall view, and the conveying installation 1 is arranged over an oblique slope 100 of an opencast mine pit. Here, the conveying installation 1 extends between a lower height level 101 and an upper height level 102 and is also connected to the opencast mine pit only at these height levels 101 and 102. The lower height level 101 represents an extraction level for the extraction of raw materials, for example rubble, ores, coal or other minerals. The conveying installation is dimensioned such that it can convey for example approximately between 500 t/h and 1000 t/h.

[0024] The conveying installation 1 comprises a conveying container 10 which can travel between a truck offloading station 14 at the lower height level 101 and a raw material receiving station 16 at the upper height level 102.

[0025] For the control of the conveying container 10, a bearing cable 11 is stretched between the lower height level 101 and the upper height level 102, and a traveling carriage 18 is provided which travels on the bearing cable 11. The conveying container 10 is in this case arranged in suspended fashion under the traveling carriage 18. The conveying container 10 can be caused to travel by means of a traction cable 12 which is attached to the traveling carriage 18. The conveying container 10 can be caused to travel between the lower height level 101 and the upper height level 102 by means of a traction drive.

[0026] At the lower height level 101, the conveying installation 1 comprises a truck offloading station 14 which is designed for the loading of the conveying container 10 with raw materials from trucks. For this purpose, the truck offloading station 14 comprises a truck ramp 25, such that the conveying container 10 can be loaded by virtue of the raw materials being poured through an upper opening into the conveying container 10.

[0027] At the upper height level 102, the conveying installation 1 comprises a raw material receiving station 16 in which the conveying container 10 can be caused to travel over a raw material receiving means 17, and when the conveying container 10 is opened, the raw materials can be unloaded via a lower opening side into a raw material receiving means 17.

[0028] By way of example, the conveying installation 1 comprises two support elements 13 and 24, and a first support element 13 is set up at the upper height level 102 and a second support element 24 is set up at the lower height level 101. The bearing cable 11 is attached between the two support elements 13 and tensioned. On the side averted from the bearing cable 11, the support elements 13 and 24 are braced to mass-based anchors 19 by bracing tension means 20 and 26, and a first mass-based anchor 19 is arranged at the upper height level 102, such that the bracing tension means 20 extends between the upper mass-based anchor 19 and the support element 13. At the lower height level 101, the further mass-based anchor 19 is arranged behind the support element 24 on the side averted from the bearing cable 11, and the bracing tension means 26 extends between the mass-based anchor 19 and the support element 24. The mass-based anchors 19 form attachment points for the bracing of the support elements 13 and 24, and the mass-based anchors 19 may also be formed by non-mass-based attachment points in the ground.

[0029] The conveying container 10 is, for movement purposes, driven by means of a drive unit 21 via the traction cable 12, and the drive unit 21 is arranged adjacent to the upper support element 13. The traction cable 12 can be pulled into the drive unit 21 in order to cause the conveying container 10 to travel upward, and said traction cable can be deployed out of the drive unit in order to cause the conveying container 10 to travel downward, and in the upper region of the support element 13, there is situated a diverting roller 27 about which the traction cable 12 is guided. This yields particularly simple set-up of the drive unit 21 and simple guidance of the traction cable 12. In particular, the drive unit 21 may lie, together with the support element 13, on a single-part or multi-part foundation 22 which is sunk into the ground at the upper height level 102.

[0030] The conveying installation 1 is shown by way of example with two support elements 13 and 24, wherein the support element 13 is required for the bracing of the bearing cable 11 at the upper height level 102, whereas the support element 24 at the lower height level 101 may also be omitted, and the bearing cable 11 is braced directly on the lower mass-based anchor 19 at the lower height level 101, for example directly behind the truck offloading station 14.

[0031] FIG. 2 shows a plan view of the truck offloading station 14 at the lower height level 101. The truck offloading station 14 comprises, as a major constituent part, a truck ramp 25 onto which trucks 15 can travel. By way of example, multiple trucks 15 are shown which are laden with raw materials. The bearing cable 11 runs over the truck ramp 25 and is supported by means of the support element 24 and is braced by means of the bracing tension means 26 and the mass-based anchor 19. The traveling carriage 18 can travel on the bearing cable 11, and the conveying container 10 is arranged in suspended fashion under the traveling carriage 18. The conveying container 10 is situated at a level below the surface of the truck ramp 25, such that the raw materials can be introduced into the conveying container 10 by being poured from the truck 15 through an upper filling opening.

[0032] FIG. 3 shows a plan view of the raw material receiving station 16 at the upper height level 102. The bearing cable 11 is attached to the support element 13 and is braced to the mass-based anchor 19 by the bracing tension means 20. The drive unit 21 which serves for driving the movement of the conveying container along the bearing cable 11 is arranged directly at the support element 13. The conveying container 10 is received in suspended fashion on the traveling carriage 18, and the traveling carriage 18 can be caused to travel along the bearing cable 11.

[0033] The raw material receiving station 16 serves for the unloading of the raw materials from the conveying container 10 into a raw material receiving means 17, which is shown by way of example as a truck 15. As indicated by the arrows, said truck can travel under the conveying container 10, such that the raw materials can be transferred from the conveying container 10 into the truck 15 by pouring through a lower opening.

[0034] FIG. 4 shows a side view of the raw material receiving station 16 with a raw material receiving means 17 in the form of a truck 15. The view shows the arrangement of the conveying container 10 above the truck 15, and the conveying container 10 is arranged in suspended fashion on the bearing cable 11.

[0035] The side view of the support element 13 shows the accommodation of the support element 13 in the form of a pillar which is accommodated in movable fashion on a foundation 22 by means of hinged joints 23. The hinged joints permit a movement of the support element 13 about the hinged joints 23, wherein, owing to the bracing of the bearing cable 11 with a tensile force in a first direction and the bracing to the mass-based anchor in a second direction by the bracing tension means, stability is imparted to the support element 13. The hinged arrangement of the support element 13 by means of the hinged joints 23 on the foundation 22 however makes it possible to realize a simple construction, because no transverse forces are introduced into the support element 13, and said support element can thus be of particularly simple design.

[0036] The invention is not restricted in terms of its design to the preferred exemplary embodiment specified above. Rather, numerous variants are conceivable which make use of the presented solution even in fundamentally different embodiments. All of the features and/or advantages that emerge from the claims, from the description or from the drawings, including design details or spatial arrangements, may be essential to the invention both individually and in a wide variety of combinations.

LIST OF REFERENCE DESIGNATIONS

[0037] 1 Conveying installation [0038] 100 Slope [0039] 101 Lower height level [0040] 102 Upper height level [0041] 10 Conveying container [0042] 11 Bearing cable [0043] 12 Traction cable [0044] 13 Support element [0045] 14 Truck offloading station [0046] 15 Truck [0047] 16 Raw material receiving station [0048] 17 Raw material receiving means [0049] 18 Traveling carriage [0050] 19 Mass-based anchor [0051] 20 Bracing tension means [0052] 21 Drive unit [0053] 22 Foundation [0054] 23 Hinged joint [0055] 24 Support element [0056] 25 Truck ramp [0057] 26 Bracing tension means [0058] 27 Diverting roller