Underground ore and rock trackless transportation system and trackless transportation method

Abstract

The present invention discloses an underground ore-rock trackless transportation system and a trackless transportation method. The system includes multiple sub-transportation systems and a main ore pass. Each sub-transportation system includes: a first horizontal connecting roadway, the upper end of the descending ramp is connected to the first horizontal connecting roadway through a transport vehicle yard, the lower end of the descending ramp is connected to the main transportation roadway, a second horizontal connecting roadway, a third horizontal connecting roadway, the lower end of the ascending ramp is connected to the third horizontal connecting roadway through a transport vehicle yard, the upper end of the ascending ramp is connected to the main transportation roadway, the main transportation roadway, one end of the main transportation roadway is connected to the second horizontal connecting roadway through a transport vehicle yard, the other end of the main transportation roadway is connected to the main ore pass through a transport vehicle yard, and the ore-rock is lifted to the surface through the main ore pass and the underground hoisting system. In the present invention, the ore-rock at each mining level is unloaded into the main ore pass in the transport vehicle yard area near the stope by a dump truck, with a short haul distance, which can reduce project investment and production costs; it is not restricted by the development depth, and the trackless transportation process has a wider application range.

Description

Technical Field

[0001] The present invention relates to the technical field of mining, and more specifically, to an underground ore-rock trackless transportation system and a trackless transportation method. Background Art

[0002] With the research and development of domestic underground trackless transportation equipment, the characteristics of flexible transportation and strong mobility of trackless equipment are favored by more and more mines. There are two specific implementation processes for the traditional underground ore-rock trackless transportation technology: The first one is that in the stope of the mining horizontal layer, a load-haul-dump (LHD) machine transports the ore-rock to the ore pass of the mining area for unloading. The bottom of the ore pass of the mining area is connected to the transportation horizontal layer. Then, in the transportation horizontal layer, an underground dump truck loads at the bottom of the ore pass of the mining area and transports it to the main ore pass for unloading. Finally, the ore-rock is hoisted to the surface through the ore passing and crushing system, the main shaft or other hoisting systems.

[0003] The other one is that in the stope of the mining level, the LHD machine loads the ore-rock onto the underground dump truck, and then the underground dump truck transports it to the surface through the main ramp. The first traditional technology has many processes, complex technology, relatively high investment in equipment and roadway engineering, and mainly for the upfront project investment. At the same time, due to many processes, there are also many accompanying failures, high energy consumption, and high production costs. In addition, since the underground trucks are concentrated in the transportation horizontal layer for transportation, the transportation horizontal layer is also severely polluted by the exhaust gas of the underground dump trucks. Although the second traditional technology has simple processes, it is limited by the transportation distance and is applicable to mines with a development depth of less than 300m. The applicable range is limited, and the transportation distance is long, with high energy consumption and high production costs.

[0004] In addition, the characteristics of flexible transportation and strong mobility of trackless equipment are favored by more and more mines. However, as the yard, which is the throat part of mine transportation, there is no reasonable planning to achieve safe and efficient ore-rock transportation, and there is also an urgent need for a reasonable new yard layout type suitable for the application of trackless transportation equipment. Summary of the Invention

[0005] The purpose of the present invention is to provide an underground ore-rock trackless transportation system and a trackless transportation method to solve the problems of poor applicability of underground ore-rock trackless transportation and unreasonable yard layout. The present invention also provides an underground ore-rock trackless transportation system, which adopts a trackless transportation technology with low cost and simple process to ensure the safety and efficiency of ore-rock transportation.

[0006] The technical solution adopted by the present invention is as follows:

[0007] An underground ore-rock trackless transportation system includes a plurality of sub-transportation systems and a main ore pass. Each sub-transportation system includes:

[0008] A first horizontal connecting roadway, the upper end of the descending ramp is connected to the first horizontal connecting roadway through a transport yard, and the lower end of the descending ramp is connected to the main transportation roadway.

[0009] The second horizontal crossheading,

[0010] The third horizontal crossheading, the lower end of the upward ramp is connected to the third horizontal crossheading through the transport vehicle yard, and the upper end of the upward ramp is connected to the main haulage roadway.

[0011] The main haulage roadway, one end of the main haulage roadway is connected to the second horizontal crossheading through the transport vehicle yard, and the other end of the main haulage roadway is connected to the main ore pass through the transport vehicle yard.

[0012] Among them, the main ore pass is used to receive the ore and rock transported from the main haulage roadway, and the ore and rock are lifted to the surface through the main ore pass and the underground hoisting system.

[0013] Optionally, the transport vehicle yard includes an incoming vehicle lane and an outgoing vehicle lane branched from the main road, and a loading and unloading ore lane connecting the incoming vehicle lane and the outgoing vehicle lane. The incoming vehicle lane, the outgoing vehicle lane and the loading and unloading ore lane form a transport vehicle yard in the shape of a capital letter "Ji".

[0014] Optionally, the incoming vehicle lane and the outgoing vehicle lane are arc-shaped.

[0015] Optionally, in the transport vehicle yard connected to the other end of the main haulage roadway,

[0016] The loading and unloading ore lane is partially merged with its outgoing vehicle lane and connected to the main ore pass.

[0017] Optionally, in the transport vehicle yard connected to the other end of the main haulage roadway,

[0018] The outgoing vehicle lane is located closer to the main ore pass than its incoming vehicle lane.

[0019] Optionally, in the transport vehicle yard connected to the main haulage roadway,

[0020] The main road of the transport vehicle yard is connected to the main haulage roadway.

[0021] Optionally, in the transport vehicle yard connected to the first horizontal crossheading, the main road of the transport vehicle yard is connected to the upper end of the downward ramp, and the incoming vehicle lane and the outgoing vehicle lane of the transport vehicle yard are respectively extended and connected to the first horizontal crossheading.

[0022] Optionally, in the transport vehicle yard connected to the third horizontal crossheading, the main road of the transport vehicle yard is connected to the lower end of the upward ramp, and the incoming vehicle lane and the outgoing vehicle lane of the transport vehicle yard are respectively extended and connected to the third horizontal crossheading.

[0023] Optionally, each sub-transport system further includes a dump truck for loading and unloading ore and rock.

[0024] The present invention also provides an underground ore and rock trackless transportation method. Using the above-mentioned underground ore and rock trackless transportation system, the following steps are carried out:

[0025] Use a dump truck to load ore and rock from any one of the first-level connecting roadway, the second-level connecting roadway, and the third-level connecting roadway;

[0026] The dump truck enters the main transportation roadway and enters the loading and unloading ore roadway in the forward direction through the entry lane of the transport vehicle yard at the other end close to the main transportation roadway, and reverses in the loading and unloading ore roadway to the main ore pass for unloading ore;

[0027] After unloading the ore, the dump truck travels forward through the exit lane and enters the main transportation roadway, completing one loading and unloading of ore and rock.

[0028] The present invention has the following technical effects:

[0029] (1) The ore pass and transportation level engineering in the mining area can be cancelled, saving the investment in project construction;

[0030] (2) The ore and rock at each mining level are unloaded by a dump truck from the stope into the main ore pass in the area of the transport vehicle yard nearby. The transportation distance is short, the number of dump trucks can be reduced, thereby reducing the project investment and production cost;

[0031] (3) It is not restricted by the development depth, making the scope of application of the trackless transportation technology wider;

[0032] (4) Through the j-shaped yard layout, the functions of unloading ore and turning around of the dump truck can be realized, ensuring the safety and efficiency of transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] By describing its embodiments in conjunction with the following drawings, the above features and technical advantages of the present invention will become clearer and easier to understand.

[0034] Figure 1 is a schematic diagram showing a sub-transportation system of the underground ore and rock trackless transportation system according to an embodiment of the present invention;

[0035] Figure 2 is a schematic diagram showing the transport vehicle yard according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0036] The following will describe the embodiments of the present invention with reference to the drawings. Those of ordinary skill in the art can recognize that the described embodiments can be modified in various different ways or in combinations thereof without departing from the spirit and scope of the present invention. Therefore, the drawings and the description are illustrative in nature and are not used to limit the protection scope of the claims. In addition, in this specification, the drawings are not drawn to scale, and the same reference numerals represent the same parts.

[0037] The underground ore trackless transportation system of this embodiment includes multiple sub-transportation systems and a main chute 7. Figure 1 The figure shows a sub-transportation system, each of which includes a first horizontal connecting tunnel 1, a second horizontal connecting tunnel 2, a third horizontal connecting tunnel 3, a descending ramp 4, an ascending ramp 5, a main transport tunnel 6, a transport yard 8 and a trackless transport vehicle, wherein the trackless transport vehicle is used for loading and unloading ore and rock. The first horizontal connecting tunnel 1, the second horizontal connecting tunnel 2 and the third horizontal connecting tunnel 3 are arranged from top to bottom and are respectively connected to the mining level stope, so that the ore and rock in the mining level stope can be transported to the corresponding horizontal connecting tunnel.

[0038] The descending ramp 4 is inclined, and its upper end is connected to the first horizontal connecting tunnel 1 through the transport yard 8, and the lower end of the descending ramp 4 is connected to the main transport tunnel 6, so that the ore can be transported from the first horizontal connecting tunnel 1 to the main transport tunnel 6. The ascending ramp 5 is also inclined, and its lower end is connected to the third horizontal connecting tunnel 3 through the transport yard 8, and the upper end of the ascending ramp 5 is connected to the main transport tunnel 6. So that the ore can be transported from the third horizontal connecting tunnel 3 to the main transport tunnel 6.

[0039] One end of the main transport tunnel 6 is connected to the second horizontal connecting tunnel 2 through the transport yard 8, and the other end of the main transport tunnel 6 is connected to the main chute 7 through the transport yard 8. The main chute 7 is used to receive the ore and rock transported from the main transport tunnel 6, and the ore and rock are lifted to the surface through the main chute and the underground lifting system. Specifically, it is lifted to the surface through the main chute → crushing chamber → beltway chamber → main shaft.

[0040] Furthermore, if Figure 2 As shown, the transport yard 8 includes an in-car lane 82 and an out-car lane 83 branching from a main road 81, and a mine loading and unloading lane 84 connecting the in-car lane and the out-car lane. The in-car lane 82, the out-car lane 83 and the mine loading and unloading lane 84 form a transport yard 8 in the shape of a Chinese character "亼". And preferably, the in-car lane and the out-car lane are arc-shaped, and are arc-shaped and concave inward, and their turning radius is selected according to the turning ability of the trackless transport vehicle. An unloading chamber is set at the end of the mine loading and unloading lane, and the main chute 7 is set in the unloading chamber 86. The main chute is a temporary storage project for ore and rock transportation, and is also the unloading end point of the ore and rock transport yard area.

[0041] In the transport yard 8 connected to the main transport lane 6, the main road 81 of the transport yard 8 is connected to the main transport lane 6. In addition, in the transport yard 8 connected to the other end of the main transport lane 6, the outgoing lane 83 is located at a position close to the main chute 7 relative to its incoming lane 82, and the loading and unloading mine lane 84 is partially merged with its outgoing lane 83 and connected to the main chute 7.

[0042] In the transport yard 8 connected by the first, second, and third horizontal connecting roadways, the incoming vehicle lane and the outgoing vehicle lane extend and connect to their respective horizontal connecting roadways. The ore loading and unloading roadway 84 merges with the horizontal connecting roadway, and the main road 81 is respectively connected to the upper end of the downward ramp 4, the main haulage roadway 6, and the lower end of the upward ramp 5.

[0043] Further, the trackless vehicle is a dump truck. Taking the transportation of ore and rock from the first horizontal connecting roadway 1 to the main ore pass 7 as an example, the trackless vehicle enters the first horizontal connecting roadway 1 through the incoming vehicle lane 82, reverses into the ore loading and unloading roadway 84, loads the ore and rock after reversing to the designated position in the stope, then drives forward into the outgoing vehicle lane 83, then enters the main haulage roadway 6 through the downward ramp 4, transports to the other end of the main haulage roadway 6, enters the ore loading and unloading roadway 84 through the incoming vehicle lane 82, reverses to the position of the main ore pass for discharging, and then drives forward into the outgoing vehicle lane 83 and drives into the main haulage roadway 6. Thus, the loading and unloading of ore and rock can continue.

[0044] The present invention also provides an underground ore and rock trackless transportation method. Using the above-mentioned underground ore and rock trackless transportation system, the following steps are carried out:

[0045] Use a dump truck to load ore and rock from any one of the first horizontal connecting roadway, the second horizontal connecting roadway, and the third horizontal connecting roadway;

[0046] The dump truck enters the main haulage roadway and enters the ore loading and unloading roadway forward from the incoming vehicle lane of the transport yard close to the main ore pass end, and reverses in the ore loading and unloading roadway to the main ore pass for discharging ore;

[0047] The dump truck after discharging ore drives forward through the outgoing vehicle lane and enters the main haulage roadway, completing one loading and unloading of ore and rock.

[0048] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An underground ore and rock trackless transportation system, characterized in that, It includes multiple sub-transportation systems and main chute, each sub-transportation system includes: The first horizontal connecting lane, the upper end of the descending ramp is connected to the first horizontal connecting lane through the transport yard, and the lower end of the descending ramp is connected to the main transport lane. The second level connecting lane, The lower end of the third level connecting lane is connected to the third level connecting lane through the transport yard, and the upper end of the upward ramp is connected to the main transport lane. A main transport lane, one end of which is connected to the second horizontal connecting lane through a transport yard, and the other end of which is connected to the main chute through the transport yard. The main chute is used to receive the ore and rock transported from the main transport tunnel. The ore and rock are lifted to the surface through the main chute and the underground hoisting system. The transport yard includes an entry lane and an exit lane branching from a main road, and a mine loading and unloading lane connecting the entry lane and the exit lane. The entry lane, the exit lane and the mine loading and unloading lane form a U-shaped transport yard.

2. The underground ore and rock trackless transportation system according to claim 1, wherein The inbound lane and the outbound lane are arc-shaped.

3. The underground ore and rock trackless transportation system according to claim 1, characterized in that, In the transport yard connected to the other end of the main transport lane, The loading and unloading mine track is partially merged with its outbound track and connected to the main chute.

4. The underground ore and rock trackless transportation system according to claim 1, characterized in that, In the transport yard connected to the other end of the main transport lane, The exit lane is located closer to the main chute relative to its entry lane.

5. The underground ore and rock trackless transportation system according to claim 1, characterized in that, In the transport yard connected to the main transport lane, The main road of the transport yard is connected to the main transport lane.

6. The underground ore and rock trackless transportation system according to claim 1, characterized in that, In the transport yard connected to the first horizontal connecting lane, the main road of the transport yard is connected to the upper end of the downward ramp, and the entry lane and exit lane of the transport yard are respectively extended and connected to the first horizontal connecting lane.

7. The trackless underground ore and rock transportation system according to claim 1, wherein In the transport yard connected to the third horizontal connecting lane, the main road of the transport yard is connected to the lower end of the ascending ramp, and the entry lane and exit lane of the transport yard are respectively extended and connected to the third horizontal connecting lane.

8. The underground ore and rock trackless transportation system according to claim 1, characterized in that, Each sub-transportation system also includes a dump truck for loading and unloading ore rocks.

9. An underground ore and rock trackless transportation method, characterized in that, Using the underground rock trackless transportation system of claim 8, the following steps are performed: Use a dump truck to load ore and rock from any of the first level connecting tunnel, the second level connecting tunnel, and the third level connecting tunnel; The dump truck enters the main transport lane, and enters the loading and unloading mine lane from the vehicle entry lane of the transport yard close to the other end of the main transport lane, and reverses on the loading and unloading mine lane to the main chute to unload the ore; After unloading the ore, the dump truck drives forward through the exit lane and enters the main transport lane, completing the loading and unloading of ore and rock.

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