Transportation system in end slope of strip mine

Abstract

The invention provides a strip mine end slope inner transportation system which comprises a stope and a dumping site, the stope and the dumping site are arranged at an area defined by a plurality of end slopes at intervals in the first direction, and the height of the stope is smaller than that of the dumping site; the two coal feeding road combinations are arranged in the stope in a spaced mode in the second direction; the plurality of middle bridges are arranged between the two coal feeding road combinations at intervals, each coal feeding road combination is connected with at least one middle bridge, the heights of the highest ends of the at least two middle bridges are not equal, and the highest end of at least one middle bridge is flush with and connected with the dumping site; the problem that in the prior art, an intermediate bridge transportation system for the strip mine is low in transportation efficiency is solved.

Description

Technical Field

[0001] The invention relates to the technical field of open-pit mine production, and in particular to an open-pit mine end wall transportation system. Background Art

[0002] As a layout method to save transportation costs, the intermediate bridge transportation system has been widely used in open-pit mines. Due to the influence of factors such as coal mining, transportation and connection, the intermediate bridge transportation system in the existing technology is relatively simple to set up, and the two bridge heads are usually at the same elevation.

[0003] The above-mentioned horizontal transportation method will cause waste of transportation distance during transportation, resulting in low transportation efficiency. After passing through the intermediate bridge transportation system, the coal or stripping material still needs to pass through an upward ramp for continued lifting transportation. Summary of the invention

[0004] The main purpose of the present invention is to provide an open-pit mine end wall transportation system to solve the problem of low transportation efficiency of the intermediate bridge transportation system used in the open-pit mine in the prior art.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided an open-pit mine end wall transportation system, comprising: a mining area and a dumping area, which are arranged at intervals along a first direction in an area surrounded by multiple end walls, and the height of the mining area is less than the height of the dumping area; two coal loading road combinations, which are arranged at intervals along a second direction in the mining area; and multiple intermediate bridges, which are arranged at intervals between two coal loading road combinations, each coal loading road combination is connected to at least one intermediate bridge, the highest ends of at least two intermediate bridges are of unequal heights, and the highest end of at least one intermediate bridge is flush with and connected to the dumping area.

[0006] Furthermore, the spoil dump also includes a first soil layer and a second soil layer arranged in sequence along the direction close to the mining area, and the height of the first soil layer is greater than the height of the second soil layer; the multiple intermediate bridges include a first intermediate bridge and a second intermediate bridge, and the length of the first intermediate bridge is greater than the length of the second intermediate bridge; wherein, an end of the first intermediate bridge away from the spoil dump is flush with an end of the second intermediate bridge away from the spoil dump, an end of the first intermediate bridge close to the spoil dump is flush with and connected to the first soil layer, and an end of the second intermediate bridge close to the spoil dump is flush with and connected to the second soil layer.

[0007] Furthermore, the two coal loading way combinations include: a first coal loading way combination, which is arranged on a side of the first intermediate bridge away from the second intermediate bridge, and the first coal loading way combination is connected to the first intermediate bridge; a second coal loading way combination, at least a part of the second coal loading way combination is arranged on a side of the second intermediate bridge away from the first intermediate bridge, and the second coal loading way combination is connected to both the second intermediate bridge and the first intermediate bridge.

[0008] Furthermore, the first coal-loading road combination includes a plurality of first step portions arranged in sequence along the first direction, each first step portion extends along the second direction, the heights of the plurality of first step portions gradually increase in the direction away from the spoil dump, and any two adjacent first step portions are connected by a first coal-loading slope.

[0009] Further, the first coal-up slope extends along a first direction; and / or the height of the first coal-up slope gradually increases in a direction away from the spoil dump.

[0010] Furthermore, the multiple first step sections include a first step, a second step and a third step arranged in sequence along the direction away from the spoil dump, the third step is lower than the end of the first intermediate bridge away from the spoil dump and the end of the second intermediate bridge away from the spoil dump, and the third step is connected to the first intermediate bridge through a second coal-up slope.

[0011] Further, the second coal-upward slope extends along the first direction; and / or the height of the second coal-upward slope gradually increases in a direction approaching the spoil dump.

[0012] Furthermore, the second coal-loading road combination includes a plurality of second step portions arranged in sequence along the first direction, each second step portion extends along the second direction, the heights of the plurality of second step portions gradually increase in the direction away from the spoil dump, and any two adjacent second step portions are connected by a third coal-loading slope.

[0013] Further, the third coal-upgrading slope extends along the second direction; and / or the height of the third coal-upgrading slope gradually increases along a direction approaching the plurality of intermediate bridges.

[0014] Furthermore, the multiple second step portions include a fourth step, a fifth step, a sixth step and a seventh step arranged in sequence in the direction away from the spoil dump, and the seventh step is flush with and connected to one end of the first intermediate bridge away from the spoil dump and one end of the second intermediate bridge away from the spoil dump.

[0015] Applying the technical solution of the present invention, the transportation system in the end wall of an open-pit mine of the present invention comprises: a mining area and a dumping area, the mining area and the dumping area are arranged at intervals along a first direction in an area surrounded by multiple end walls, and the height of the mining area is less than the height of the dumping area; two coal loading road combinations, the two coal loading road combinations are arranged at intervals along a second direction in the mining area; multiple intermediate bridges, the multiple intermediate bridges are arranged at intervals between the two coal loading road combinations, each coal loading road combination is connected to at least one intermediate bridge, the heights of the highest ends of at least two intermediate bridges are not equal, and the highest end of at least one intermediate bridge is flush with and connected to the dumping area. In this way, the transportation system in the end wall of an open-pit mine of the present invention reduces the waste of transportation distance during transportation by making the highest end of at least one intermediate bridge flush with and connected to the dumping area, avoids the problem that coal or strippings still need to pass through an upward ramp to reach the dumping area after passing through the intermediate bridge transportation system, solves the problem of low transportation efficiency of the intermediate bridge transportation system used in open-pit mines in the prior art, and reduces time waste and energy consumption during coal transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic structural diagram of an embodiment of an open-pit mine end wall transportation system according to the present invention is shown;

[0018] Figure 2 Shows Figure 1 The schematic diagram of the structure of multiple intermediate bridges of the transport system in the end wall of the open-pit mine shown;

[0019] Figure 3 Shows Figure 1 A partial structural schematic diagram of the transport system inside the end wall of an open-pit mine is shown.

[0020] The above drawings include the following reference numerals:

[0021] 100, mining area; 200, spoil dump; 201, first row of soil layer; 202, second row of soil layer; 300, end wall;

[0022] 1. Coal loading road combination; 11. First coal loading road combination; 111. First step; 112. First coal loading slope; 113. First step; 114. Second step; 115. Third step; 116. Second coal loading slope; 12. Second coal loading road combination; 121. Second step; 122. Third coal loading slope; 123. Fourth step; 124. Fifth step; 125. Sixth step; 126. Seventh step;

[0023] 2. Middle bridge; 21. First middle bridge; 22. Second middle bridge. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] like Figures 1 to 3 As shown, the present invention provides an open-pit mine end wall transportation system, comprising: a mining area 100 and a dumping area 200, the mining area 100 and the dumping area 200 are arranged at intervals along a first direction in an area surrounded by multiple end walls 300, and the height of the mining area 100 is less than the height of the dumping area 200; two coal loading road combinations 1, the two coal loading road combinations 1 are arranged at intervals along a second direction in the mining area 100; multiple intermediate bridges 2, the multiple intermediate bridges 2 are arranged at intervals between two coal loading road combinations 1, each coal loading road combination 1 is connected to at least one intermediate bridge 2, the highest ends of at least two intermediate bridges 2 are not equal in height, and the highest end of at least one intermediate bridge 2 is flush with and connected to the dumping area 200.

[0026] In this way, the open-pit mine end wall transportation system of the present invention reduces the waste of transportation distance during transportation by making the highest end of at least one intermediate bridge 2 flush with and connected to the spoil dump 200, avoiding the problem that coal or strippings still need to pass through an upward ramp to reach the spoil dump after passing through the intermediate bridge transportation system, solving the problem of low transportation efficiency of the intermediate bridge transportation system used in open-pit mines in the prior art, and reducing time waste and energy consumption in the coal transportation process.

[0027] Specifically, the first direction and the second direction are perpendicular to each other.

[0028] like Figure 1 As shown, the spoil dump 200 also includes a first soil layer 201 and a second soil layer 202 which are arranged in sequence along the direction close to the mining area 100, and the height of the first soil layer 201 is greater than the height of the second soil layer 202; the multiple intermediate bridges 2 include a first intermediate bridge 21 and a second intermediate bridge 22, and the length of the first intermediate bridge 21 is greater than the length of the second intermediate bridge 22; wherein, the end of the first intermediate bridge 21 away from the spoil dump 200 is flush with the end of the second intermediate bridge 22 away from the spoil dump 200, the end of the first intermediate bridge 21 close to the spoil dump 200 is flush with and connected to the first soil layer 201, and the end of the second intermediate bridge 22 close to the spoil dump 200 is flush with and connected to the second soil layer 202.

[0029] like Figure 1 and Figure 2As shown, the two coal loading way combinations 1 include: a first coal loading way combination 11, which is arranged on a side of the first intermediate bridge 21 away from the second intermediate bridge 22, and the first coal loading way combination 11 is connected to the first intermediate bridge 21; a second coal loading way combination 12, at least part of the second coal loading way combination 12 is arranged on a side of the second intermediate bridge 22 away from the first intermediate bridge 21, and the second coal loading way combination 12 is connected to both the second intermediate bridge 22 and the first intermediate bridge 21.

[0030] In practical applications, the setting of the first coal loading road combination 11 and the second coal loading road combination 12 can effectively improve transportation efficiency and reduce energy waste. It is suitable for large-scale transportation operations in open-pit mines, especially in scenarios requiring high-efficiency transportation. It can significantly improve the overall performance of the transportation system and increase the transportation speed of ore and earth and stone, which is of great significance for improving the mining efficiency of open-pit mines.

[0031] like Figure 1 As shown, the first coal loading road combination 11 includes a plurality of first step portions 111 arranged in sequence along the first direction, each first step portion 111 extends along the second direction, and the heights of the plurality of first step portions 111 gradually increase in the direction away from the spoil dump 200, and any two adjacent first step portions 111 are connected by a first coal loading slope 112.

[0032] like Figure 1 As shown, the first coal-up slope 112 extends along a first direction; and / or the height of the first coal-up slope 112 gradually increases in a direction away from the spoil dump 200 .

[0033] In actual applications, the setting of the first coal loading road combination 11 enables operators to flexibly adjust the transportation route according to the terrain conditions of the mining area, reduce the energy consumption of transportation vehicles, and improve transportation efficiency. It is suitable for open-pit mining operations, especially in mining areas with complex terrain and large elevation differences. It can effectively improve transportation efficiency and reduce operating costs, provide strong support for the efficient mining of open-pit mines, help improve the transportation capacity of ore and earth and stone, reduce transportation costs, and improve economic benefits.

[0034] like Figure 1 As shown, the first coal-loading slope 112 includes a main ramp and a branch ramp. The two ends of the main ramp are respectively connected to the first step 113 and the third step 115, and the two ends of the branch ramp are respectively connected to the main ramp and the second step 114.

[0035] like Figure 1As shown, the multiple first step portions 111 include a first step 113, a second step 114 and a third step 115 which are arranged in sequence along the direction away from the spoil dump 200. The third step 115 is lower than the end of the first intermediate bridge 21 away from the spoil dump 200 and the end of the second intermediate bridge 22 away from the spoil dump 200. The third step 115 is connected to the first intermediate bridge 21 via a second coal-up slope 116.

[0036] Specifically, the first coal loading road combination 11 of the open-pit mine end wall transportation system of the present invention, which is located on the short bridge side of the first intermediate bridge 21, adopts a centralized-return road layout, which reduces the frequent relocation of the coal loading ramp, reduces the adjustment cost of the open-pit mine end wall transportation system and the direct cost of coal transportation, improves the continuity and efficiency of coal mining, and can significantly free up space.

[0037] like Figure 1 As shown, the second upper coal slope 116 extends along the first direction; and / or the height of the second upper coal slope 116 gradually increases in the direction approaching the spoil dump 200.

[0038] like Figure 1 As shown, the second coal loading road combination 12 includes a plurality of second step portions 121 arranged in sequence along the first direction, each second step portion 121 extends along the second direction, the heights of the plurality of second step portions 121 gradually increase in the direction away from the spoil dump 200, any two adjacent second step portions 121 are connected by a third coal loading slope 122, and a third coal loading slope 122 is arranged between any two adjacent second step portions 121.

[0039] like Figure 1 As shown, the third coal-uploading slope 122 extends along the second direction; and / or the height of the third coal-uploading slope 122 gradually increases along the direction approaching the plurality of intermediate bridges 2 .

[0040] In actual applications, the setting of the second coal loading road combination 12 can enable the transport vehicles to smoothly transition between the second step sections 121 at different heights, reduce energy waste and vehicle damage caused by road bumps, improve transportation efficiency and safety, and is suitable for transportation operations in open-pit mines, especially in scenarios where frequent adjustment of transportation height is required. It can effectively improve the overall performance of the transportation system, reduce transportation time, and increase the transportation speed of ore and earth and stone, which plays an important role in improving the production efficiency of open-pit mines.

[0041] like Figure 1As shown, the multiple second step portions 121 include a fourth step 123, a fifth step 124, a sixth step 125 and a seventh step 126 arranged in sequence along the direction away from the spoil dump 200, and the seventh step 126 is flush with and connected to one end of the first intermediate bridge 21 away from the spoil dump 200 and one end of the second intermediate bridge 22 away from the spoil dump 200.

[0042] Preferably, the step surface of the fourth step 123 is flush with the step surface of the first step 113 and the length of the fourth step 123 is greater than the length of the first step 113, the step surface of the fifth step 124 is flush with the step surface of the second step 114 and the length of the fifth step 124 is greater than the length of the second step 114, the step surface of the sixth step 125 is flush with the step surface of the third step 115 and the length of the sixth step 125 is greater than the length of the third step 115, and the seventh step 126 is located on the side of the sixth step 125 and the third step 115 away from the spoil dump 200 and the length of the seventh step 126 is greater than the sum of the length of the sixth step 125 and the length of the third step 115.

[0043] Specifically, the second coal loading road combination 12 of the open-pit mine end wall transportation system located on the short bridge side of the second intermediate bridge 22 of the present invention is more flexibly arranged and can be arranged in a straight line or a broken line according to the actual space conditions to improve the adaptability and flexibility of the open-pit mine end wall transportation system and ensure that the transportation needs in different situations can be met.

[0044] like Figure 1 As shown, in the open-pit mine end wall transportation system of the present invention, the selectable transportation paths include:

[0045] (1) First, it passes through the first coal loading road assembly 11, and then passes through the first intermediate bridge 21 to be transported to the first row of soil layer 201.

[0046] (2) First, the coal passes through the first coal loading road combination 11, and then passes through the second intermediate bridge 22 to be transported to the second row of soil layer 202.

[0047] (3) First, it passes through the second coal loading road combination 12, and then passes through the second intermediate bridge 22 to be transported to the second row of soil layer 202.

[0048] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0049] The open-pit mine end wall transportation system of the present invention includes: a mining area 100 and a dumping area 200, which are arranged at intervals along a first direction in an area surrounded by multiple end walls 300, and the height of the mining area 100 is less than the height of the dumping area 200; two coal loading road combinations 1, which are arranged at intervals along a second direction in the mining area 100; and multiple intermediate bridges 2, which are arranged at intervals between two coal loading road combinations 1, and each coal loading road combination 1 is connected to at least one intermediate bridge 2, and the heights of the highest ends of at least two intermediate bridges 2 are not equal, and the highest end of at least one intermediate bridge 2 is flush with and connected to the dumping area 200. In this way, the open-pit mine end wall transportation system of the present invention reduces the waste of transportation distance during transportation by making the highest end of at least one intermediate bridge 2 flush with and connected to the spoil dump 200, avoiding the problem that coal or strippings still need to pass through an upward ramp to reach the spoil dump after passing through the intermediate bridge transportation system, solving the problem of low transportation efficiency of the intermediate bridge transportation system used in open-pit mines in the prior art, and reducing time waste and energy consumption in the coal transportation process.

[0050] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0051] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0052] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0053] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0054] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An open-pit mine end wall transportation system, characterized in that: include: A stope (100) and a spoil dump (200), wherein the stope (100) and the spoil dump (200) are arranged at intervals along a first direction in an area surrounded by a plurality of end walls (300), and the height of the stope (100) is smaller than the height of the spoil dump (200); Two coal loading channel assemblies (1), the two coal loading channel assemblies (1) being arranged in the mining field (100) at intervals along the second direction; A plurality of intermediate bridges (2), wherein the plurality of intermediate bridges (2) are arranged at intervals between the two coal loading road assemblies (1), each of the coal loading road assemblies (1) is connected to at least one of the intermediate bridges (2), the highest ends of at least two of the intermediate bridges (2) are of unequal heights, and the highest end of at least one of the intermediate bridges (2) is flush with and connected to the spoil dump (200).

2. The open-pit mine end wall transportation system according to claim 1, characterized in that: The spoil dump (200) further comprises a first soil layer (201) and a second soil layer (202) which are sequentially arranged in a direction close to the stope (100), wherein the height of the first soil layer (201) is greater than the height of the second soil layer (202); The plurality of intermediate bridges (2) include a first intermediate bridge (21) and a second intermediate bridge (22), wherein the length of the first intermediate bridge (21) is greater than the length of the second intermediate bridge (22); The end of the first intermediate bridge (21) away from the spoil dump (200) is flush with the end of the second intermediate bridge (22) away from the spoil dump (200), the end of the first intermediate bridge (21) close to the spoil dump (200) is flush with and connected to the first spoil layer (201), and the end of the second intermediate bridge (22) close to the spoil dump (200) is flush with and connected to the second spoil layer (202).

3. The open-pit mine end wall transportation system according to claim 2, characterized in that: The two coal loading road combinations (1) include: A first coal loading channel assembly (11), the first coal loading channel assembly (11) being arranged on a side of the first intermediate bridge (21) away from the second intermediate bridge (22), the first coal loading channel assembly (11) being connected to the first intermediate bridge (21); A second coal loading way assembly (12), wherein at least a portion of the second coal loading way assembly (12) is arranged on a side of the second intermediate bridge (22) away from the first intermediate bridge (21), and the second coal loading way assembly (12) is connected to both the second intermediate bridge (22) and the first intermediate bridge (21).

4. The open-pit mine end wall transportation system according to claim 3, characterized in that: The first coal loading road assembly (11) comprises a plurality of first step portions (111) arranged in sequence along a first direction, each of the first step portions (111) extending along the second direction, the heights of the plurality of first step portions (111) gradually increasing in a direction away from the spoil dump (200), and any two adjacent first step portions (111) are connected via a first coal loading slope (112).

5. The open-pit mine end wall transportation system according to claim 4, characterized in that: The first coal-loading slope (112) extends along the first direction; and / or The height of the first coal-up slope (112) gradually increases in a direction away from the spoil dump (200).

6. The open-pit mine end wall transportation system according to claim 4, characterized in that: The multiple first step portions (111) include a first step (113), a second step (114) and a third step (115) which are arranged in sequence along a direction away from the spoil dump (200); the third step (115) is lower than an end of the first intermediate bridge (21) away from the spoil dump (200) and an end of the second intermediate bridge (22) away from the spoil dump (200); the third step (115) is connected to the first intermediate bridge (21) via a second coal-up slope (116).

7. The open-pit mine end wall transportation system according to claim 6, characterized in that: The second coal-up slope (116) extends along the first direction; and / or The height of the second coal-up slope (116) gradually increases in a direction approaching the spoil dump (200).

8. The open-pit mine end wall transportation system according to claim 3, characterized in that: The second coal-loading road assembly (12) comprises a plurality of second step portions (121) arranged in sequence along a first direction, each of the second step portions (121) extending along the second direction, the heights of the plurality of second step portions (121) gradually increasing in a direction away from the spoil dump (200), and any two adjacent second step portions (121) are connected via a third coal-loading slope (122).

9. The open-pit mine end wall transportation system according to claim 8, characterized in that: The third coal-up slope (122) extends along the second direction; and / or The height of the third coal-loading slope (122) gradually increases in a direction approaching the plurality of intermediate bridges (2).

10. The open-pit mine end wall transportation system according to claim 8, characterized in that: The plurality of second step portions (121) include a fourth step (123), a fifth step (124), a sixth step (125) and a seventh step (126) which are arranged in sequence in a direction away from the spoil dump (200); the seventh step (126) is flush with and connected to an end of the first intermediate bridge (21) away from the spoil dump (200) and an end of the second intermediate bridge (22) away from the spoil dump (200).

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