Layered construction method and device for bottom-side unloading unloading station

Abstract

The present invention relates to a layered construction method of a bottom side unloading type unloading station, which specifically includes the following steps: building an upper safety operation construction platform between the unloading chamber and the upper port of the unloading chute; setting up and installing a driving system on the upper safety operation construction platform; opening an upper passage running through the upper and lower parts on the upper safety operation construction platform, using the driving system to lift materials and build a middle-level safety operation construction platform for the construction of the unloading chute at the junction of the upper port of the ore storage chute and the lower port of the unloading chute; the present invention also relates to a layered construction device of a bottom side unloading type unloading station. The beneficial effect of the present invention is that the overall project is divided into multiple operation layers by using a multi-layer safety operation platform, and the cross operation is realized by combining the different construction requirements of each process and the operation time difference, which solves the problems of the traditional construction method in the process of layer-by-layer construction, such as the unsmooth connection of the process, the long construction operation time, the large amount of well filling operation and the influence on the ore discharge of the main chute system, and the operation efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of underground building construction or mine shaft and tunnel engineering, and in particular to a layered construction method and device for a bottom side unloading type unloading station. Background Art

[0002] With the development of the mining industry, the use of new technologies and large-scale trackless mining equipment, the scale of mines has been expanding, the production capacity of mines has been greatly improved, and the rate of decline in the amount of ore in the mine room has reached a new high. The early planned time for the commissioning of the underground ore transportation system has not kept up with the pace of the rapid expansion of modern mines. Deep mining has become an inevitable trend, and the proportion of the construction period of deep rail transportation systems and ore unloading systems will also increase accordingly. The quality and speed of ore unloading system construction are particularly important, which is directly related to the success or failure of mine construction and mine operation.

[0003] Traditional unloading station construction usually adopts the method of well filling operation, which has a large amount of work, a long construction period, and requires the mine to stop production, which seriously affects the operation efficiency. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a layered construction method and device for a bottom-side unloading type unloading station, aiming to solve the above-mentioned technical problem.

[0005] The technical solution of the present invention to solve the above technical problems is as follows:

[0006] A layered construction method for a bottom-side unloading type unloading station specifically comprises the following steps:

[0007] S1: Build an upper safety operation construction platform between the unloading chamber and the upper port of the unloading chute;

[0008] S2: Set up and install the driving system on the upper safety operation construction platform;

[0009] S3: An upper passage that runs through the upper safety operation construction platform is opened, and the materials are hoisted by the crane system to build a middle-level safety operation construction platform for the construction of the ore unloading chute at the junction of the upper port of the ore storage chute and the lower port of the ore unloading chute.

[0010] The beneficial effects of the present invention are as follows: the present invention adopts a multi-layer safety operation platform to divide the overall project into multiple operation layers, combines the different construction requirements of each process, and the operation time difference to realize cross-operation, thereby solving the drawbacks of the traditional construction method in the process of layer-by-layer construction, such as the unsmooth connection of the process, long construction operation time, large amount of well filling operation, and impact on the main chute system ore release, and greatly improves the operation efficiency.

[0011] Based on the above technical solution, the present invention can also be improved as follows.

[0012] Furthermore, after step S3, the method further includes:

[0013] S4: A lower passage running through the middle-level safety operation construction platform is opened, and the materials are hoisted by the crane system to build a lower-level safety operation construction platform for the construction of the ore storage chute and the chute at the junction of the chute and the main chute.

[0014] The beneficial effect of adopting the above-mentioned further scheme is that by opening a lower passage on the middle-level safe operation construction platform, the lower-level safe operation construction platform can be built using the driving system, thereby facilitating the construction of the ore storage chute and the ore chute inclined tunnel, so that each process can be carried out in stages, making full use of the maintenance time of other processes, realizing continuous construction, and greatly improving work efficiency.

[0015] Furthermore, after step S3, the method further includes:

[0016] S4: An installation construction platform for installing and debugging the unloading device is built at the upper port of the unloading chute.

[0017] The beneficial effect of adopting the above further solution is that an installation operation construction platform is built to facilitate installation and debugging of the unloading device, which makes construction convenient and greatly improves operation efficiency.

[0018] The present invention also relates to a layered construction device for a bottom-side unloading station, comprising a safety construction work platform, a middle-layer safety work construction platform and a crane system, wherein the upper-layer safety work construction platform is horizontally and fixedly constructed between the unloading chamber and the upper port of the unloading chute, and an upper passage running through the upper and lower ports is opened on the upper-layer safety work construction platform; the crane system is fixedly mounted on the upper-layer safety work construction platform, and the middle-layer safety work construction platform is horizontally and fixedly constructed at the junction of the upper port of the ore storage chute and the lower port of the unloading chute by lifting materials through the crane system.

[0019] The beneficial effect of adopting the above further scheme is that during the construction process, the upper safety operation construction platform is first built to build the driving system; then, an upper passage is opened on the upper safety operation construction platform, and the driving system is used to build the middle safety operation construction platform to construct the ore unloading chute, and the construction is carried out in sequence, which is convenient and greatly improves the operation efficiency. The present invention uses a multi-layer safety operation platform to divide the overall project into multiple operation layers, combines the different construction requirements of each process, and the operation time difference to achieve cross-operation, which solves the problems of the traditional construction method in the process of layer-by-layer construction, the unsmooth connection of the process, the long construction operation time, the large amount of well filling operation, and the impact on the main chute system. The disadvantages of ore discharge, etc., greatly improve the operation efficiency.

[0020] Furthermore, the upper safety operation construction platform and the middle safety operation construction platform are both constructed of anchor rods, steel pipes and wooden boards.

[0021] The beneficial effects of adopting the above further solution are simple structure, convenient assembly, time saving and labor saving.

[0022] Furthermore, the middle-level safety operation construction platform is provided with a lower passage running through the upper and lower parts; it also includes a lower-level safety operation construction platform, which is horizontally fixed and built at the junction of the ore chute and the main chute by lifting materials through the crane system, and is used for the construction of the ore storage chute and the ore chute.

[0023] The beneficial effect of adopting the above further scheme is to build a lower-level safe operation construction platform to facilitate the construction of ore storage chutes and ore chute inclined tunnels, realize layered construction, make full use of the maintenance time of other layers, greatly shorten the operation time, and greatly improve construction efficiency.

[0024] Furthermore, the lower safety working platform is constructed of anchor rods, steel pipes and wooden boards.

[0025] The beneficial effects of adopting the above further solution are simple structure, convenient assembly, time saving and labor saving.

[0026] Furthermore, it also includes an installation operation construction platform, which is horizontally fixedly built at the upper port of the unloading chute and is used for installing and debugging the unloading device.

[0027] The beneficial effect of adopting the above further solution is that an installation operation construction platform is built to facilitate installation and debugging of the unloading device, which makes construction convenient and greatly improves operation efficiency.

[0028] Furthermore, the installation work platforms are constructed of anchor rods, steel pipes and wooden boards.

[0029] The beneficial effects of adopting the above further solution are simple structure, convenient assembly, time saving and labor saving.

[0030] Furthermore, the crane system is constructed by columns, track-bearing beams and a crane.

[0031] The beneficial effects of adopting the above further solution are simple structure, convenient assembly, time saving and labor saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of the present invention.

[0033] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0034] 1. Driving system, 2. Upper safety operation construction platform, 3. Installation operation construction platform, 4. Middle safety operation construction platform, 5. Lower safety operation construction platform, 6. Unloading chamber, 7. Ore unloading chute, 8. Ore storage chute, 9. Ore chute inclined tunnel, 10. Main chute. DETAILED DESCRIPTION

[0035] The principles and features of the present invention are described below in conjunction with the accompanying drawings and specific embodiments. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0036] like Figure 1 As shown, the present invention provides a layered construction method for a bottom side unloading type unloading station, which specifically includes the following steps:

[0037] S1: Build an upper safety operation construction platform 2 between the unloading chamber 6 and the upper port of the unloading chute 7;

[0038] S2: Installing the driving system 1 on the upper safety operation construction platform 2;

[0039] S3: An upper passage running through the upper safety operation construction platform 2 is opened, and the materials are hoisted by the crane system 1 to build a middle-level safety operation construction platform 4 for the construction of the ore unloading chute 7 at the junction of the upper end of the ore storage chute 8 and the lower end of the ore unloading chute 7.

[0040] With the development of the mining industry, the use of new technologies and large-scale trackless mining equipment, the scale of mines has been expanding, the production capacity of mines has been greatly improved, and the rate of decline in the amount of ore in the mine room has reached a new high. The early planned time for the commissioning of the underground ore transportation system has not kept up with the pace of the rapid expansion of modern mines. Deep mining has become an inevitable trend, and the proportion of the construction period of deep rail transportation systems and ore unloading systems will also increase accordingly. The quality and speed of ore unloading system construction are particularly important, which is directly related to the success or failure of mine construction and mine operation. Traditional unloading station construction usually adopts the method of filling well operation, which has a large amount of work, a long construction period, and requires the mine to stop production.

[0041] During the actual construction of the present invention, a plurality of personnel working platforms are arranged at intervals in the vertical direction to divide the entire unloading system into a plurality of separate working layers. The time when the concrete of the upper layer is being cured is used to process the steel lining and pour the concrete of the lower layer. The time when the concrete of the lower layer is being cured is used to install and debug the equipment of the upper layer.

[0042] The present invention adopts a multi-layer safety operation platform to divide the overall project into multiple operation layers, and realizes cross-operation in combination with the different construction requirements of each process and the operation time difference, thereby solving the drawbacks of the traditional construction method in the process of layer-by-layer construction, such as the poor connection of the process, long construction operation time, large amount of well filling operation and impact on the main chute system ore discharge, and greatly improving the operation efficiency.

[0043] In comparison, the present invention rationally utilizes the time for construction and maintenance, realizes continuous construction without stopping production, greatly improves the operating efficiency, and is significantly better than the traditional construction method.

[0044] Example 1

[0045] Based on the above structure, in this embodiment, after step S3, the following steps are further included:

[0046] S4: A lower passage running through the middle-level safety operation construction platform 4 is opened, and the materials are hoisted by the crane system 1 to build a lower-level safety operation construction platform 5 for the construction of the ore storage chute 8 and the chute 9 at the junction of the chute 9 and the main chute 10.

[0047] In this embodiment, a lower passage is opened on the middle-level safety operation construction platform 4 so that the lower-level safety operation construction platform 5 can be built using the driving system 1, thereby facilitating the construction of the ore storage chute 8 and the ore chute inclined tunnel 9, so that each process can be carried out in stages, and the maintenance time of other processes can be fully utilized to achieve continuous construction, thereby greatly improving the operating efficiency.

[0048] The unloading chamber 6, the ore unloading chute 7, the ore storage chute 8 and the ore chute inclined tunnel 9 are fixedly connected and communicated in sequence to form a complete rock mass with a certain space. The rock mass is located on one side of the main chute 10. This part of the existing technology.

[0049] In addition, the construction work of the ore unloading chute 7, the ore storage chute 8 and the ore chute inclined tunnel 9 includes the operation procedures such as the fixing of embedded parts, the welding of manganese steel lining plates, and the pouring of concrete.

[0050] Example 2

[0051] Based on the above structure, in this embodiment, after step S3, the following steps are further included:

[0052] S4: An installation construction platform 3 for installing and debugging the unloading device is built at the upper end of the unloading chute 7.

[0053] In this embodiment, an installation operation construction platform 3 is built to facilitate installation and debugging of the unloading device, which makes construction convenient and greatly improves the operation efficiency.

[0054] The above scheme and the scheme of embodiment one are parallel schemes. This scheme can exist with the scheme of embodiment one or both. When the two coexist, this scheme is placed behind the scheme of embodiment one to avoid the constructed installation operation construction platform 3 affecting the construction of the middle-level safety operation construction platform 4 and the lower-level safety operation construction platform 5.

[0055] Example 3

[0056] On the basis of the above structure, the present embodiment also relates to a layered construction device of a bottom side unloading station, comprising an upper safety operation construction platform 2, a middle upper safety operation construction platform 4 and a crane system 1. The upper safety operation construction platform 2 is horizontally fixedly constructed between the unloading chamber 6 and the upper end of the unloading chute 7, and an upper passage running through the upper and lower ends is opened on it; the crane system 1 is fixedly mounted on the upper safety operation construction platform 2, and the middle safety operation construction platform 4 is horizontally fixedly constructed at the junction of the upper end of the ore storage chute 8 and the lower end of the unloading chute 7 by means that can be thought of by technicians in this field, such as by lifting materials through the crane system 1.

[0057] During the construction process, first build the upper safety operation construction platform 2 to build the driving system 1; then, open an upper passage on the upper safety operation construction platform 2, and use the driving system 1 to build the middle safety operation construction platform 4 to construct the ore unloading chute 7, and construct them in sequence, which is convenient and greatly improves the operation efficiency. The present invention uses a multi-layer safety operation platform to divide the overall project into multiple operation layers, combines the different construction requirements of each process, and the operation time difference to achieve cross-operation, which solves the problems of the traditional construction method in the process of layer-by-layer construction, such as unsmooth process connection, long construction time, large amount of well filling operation, and affecting the main chute system ore discharge, and greatly improves the operation efficiency.

[0058] Example 4

[0059] On the basis of the third embodiment, in this embodiment, a lower passage running through from top to bottom is provided on the middle-level safety operation construction platform 4; it also includes a lower-level safety operation construction platform 5, which is horizontally fixedly built at the junction of the ore chute 9 and the main chute 10 by a method that can be thought of by a person skilled in the art, such as by lifting materials through the said driving system 1, and is used for construction of the ore storage chute 8 and the ore chute 9; the materials are passed through the lower passage to the lower part of the middle-level safety operation construction platform 4 through the driving system 1 to build the lower-level safety operation construction platform 5. During construction, by building the lower-level safety operation construction platform 5 to construct the ore storage chute 8 and the ore chute 9, layered construction is realized, and the maintenance time of other layers is fully utilized, which greatly shortens the operation time and greatly improves the construction efficiency.

[0060] The above-mentioned upper passage and lower passage are formed by removing the corresponding materials at the corresponding positions of the upper safety operation construction platform 2 and the lower safety operation construction platform 5 to form passages.

[0061] Example 5

[0062] On the basis of Example 4, in this embodiment, the upper safety operation construction platform 2, the middle safety operation construction platform 4 and the lower safety operation construction platform 5 are all constructed by anchor rods, steel pipes and wooden boards, with a simple structure, easy construction, and time-saving and labor-saving.

[0063] The anchor rods, steel pipes and wooden boards used to build the upper safety operation construction platform 2, the middle safety operation construction platform 4 and the lower safety operation construction platform 5 are constructed according to needs, and the coordination and connection methods between them all adopt existing technologies, which will not be repeated here.

[0064] Example 6

[0065] On the basis of the fourth embodiment, in this embodiment, the upper channel and the lower channel are respectively located in the middle of the upper safety construction platform 2 and the middle safety construction platform 4, with a simple structure, reasonable location selection, and convenient construction.

[0066] Example 7

[0067] On the basis of the third embodiment, this embodiment further includes an installation operation construction platform 3, which is horizontally fixedly built at the upper end of the unloading chute 7 in a manner that can be thought of by those skilled in the art, and is used to install and debug the unloading device. During construction, by building the installation operation construction platform 3 to install and debug the unloading device, the construction is convenient and the operation efficiency is greatly improved.

[0068] When the layered concrete pouring of the ore chute 9 and the ore storage chute 8 is completed and maintained, the installation and commissioning of the bottom-side unloading mine car unloading equipment such as the curved track, the supporting wheel beam, and the supporting wheel can be carried out on the installation operation construction platform 3.

[0069] Example 8

[0070] On the basis of Example 7, in this embodiment, the upper safety operation construction platform 2, the middle safety operation construction platform 4 and the installation operation construction platform 3 are all constructed by anchor rods, steel pipes and wooden boards, with a simple structure, easy construction, and time-saving and labor-saving.

[0071] The anchor rods, steel pipes and wooden boards used to build the upper safety operation construction platform 2, the middle safety operation construction platform 4 and the installation operation construction platform 3 are constructed according to needs, and the coordination and connection methods between them all adopt existing technologies, which will not be repeated here.

[0072] Example 9

[0073] On the basis of the above structure, in this embodiment, the crane system 1 is constructed by columns, track-bearing beams and cranes, which has a simple structure, is easy to build, and saves time and effort.

[0074] The coordination and connection between the columns, track-bearing beams and the crane for constructing the crane system 1 are all based on existing technologies, and the specific structure and principle thereof will not be described in detail here.

[0075] The working principle of the present invention is as follows:

[0076] S1: Build an upper safety operation construction platform 2 between the unloading chamber 6 and the upper port of the unloading chute 7;

[0077] S2: Installing the driving system 1 on the upper safety operation construction platform 2;

[0078] S3: Open an upper passage on the upper safety operation construction platform 2, use the crane system 1 to lift materials and build a middle-level safety operation construction platform 4 for the construction of the unloading chute 7 at the junction of the upper end of the ore storage chute 8 and the lower end of the unloading chute 7;

[0079] S4: A lower passage is opened on the middle-level safety operation construction platform 4, and the materials are hoisted by the driving system 1 to build a lower-level safety operation construction platform 5 for the construction of the ore storage chute 8 and the ore chute 9 at the junction of the ore chute 9 and the main chute 10;

[0080] S5: An installation construction platform 3 for installing and debugging the unloading device is built at the upper end of the unloading chute 7.

[0081] The present invention adopts a multi-layer safety operation platform to divide the overall project into multiple operation layers, and realizes cross-operation in combination with the different construction requirements of each process and the operation time difference, thereby solving the drawbacks of the traditional construction method in the process of layer-by-layer construction, such as the poor connection of the process, long construction operation time, large amount of well filling operation and impact on the main chute system ore discharge, and greatly improving the operation efficiency.

[0082] Take the ore unloading station in the deep mining ore transportation system of a certain mine as an example. The unloading station is located at the 2020m level and is the ore transportation transfer point of the main mining area of ​​2037m~2150m. The connected ore main chute 10 connects the 2150m ore unloading station to the 1974m crushing chamber. The 2020m horizontal ore unloading station, ore storage chute 8 and ore chute inclined lane 9 are important components of the unloading system. The elevation of the unloading chamber floor is +2021.88m, and the lowest elevation of the ore chute inclined lane 9 is +1999.84m. The chamber is divided into the upper unloading chamber 6, unloading chute 7, ore storage chute 8 and ore chute inclined lane 9. The main chamber is 29.3m long and 8m wide; the ore unloading chute 7 is 22m long, 2.92m wide and 6.8m high; the ore storage chute 8 has a net diameter of 4m and a height of 6.85m; the ore chute 9 has a net width of 4m and a length of 10m.

[0083] like Figure 1 As shown, 6 is an unloading chamber, 7 is an ore unloading chute, 8 is an ore storage chute, 9 is an ore chute inclined lane, and 10 is a main chute. The specific implementation is as follows:

[0084] 1) Construction workers should take anti-falling measures such as wearing safety belts, and construct fixed anchor holes from the entrance to the exit of the cavern. The anchor hole depth is 1500mm, and the angle is horizontal and upward. Two holes are constructed on each side. Quick-drying cement rolls are used to anchor 32mm diameter round steel. The round steel is exposed 500mm and firmly welded to the Φ159mm steel pipe. The spacing between the anchor and steel pipe rows shall not be greater than 800mm. 50×200×5000mm wooden boards are densely laid on the steel pipes. The gap between the platform and the surrounding rock walls is filled with wooden boards. The wooden boards and steel pipes are firmly tied with 10# iron wire. When setting up the platform, use a section of the installed platform as a springboard and construct forward section by section in a cycle. This platform serves as the upper safety construction work platform 2;

[0085] 2) Construct the column foundation pier and wall support parts according to the designed position and size, and construct the lifting anchor rods on the top of the chamber corresponding to the foundation pier; after the column and rail beam steel are processed and manufactured at the surface processing site, they are transported to the underground chamber; use the lifting anchor rod to hang the fall chain to lift the column equipped with the connecting parts into place, and connect it with the chamber wall support parts to ensure a tight connection; lift the rail beam to the designed installation position, check the position and elevation of the rail beam according to the design and the on-site waistline, check the position and elevation of the track according to the design and the on-site waistline, press and fasten the track that meets the design requirements on the rail beam with a pressure plate, use the anchor rod lifting method, and assemble the crane at the installation site; connect the main beam and the cross beam, tighten them with high-strength bolts, and install the electric hoist;

[0086] 3) Construction workers use steel ladders equipped with safety belts and other anti-falling measures to go down to the bottom of the ore unloading chute 7, and use steel-wood structures to seal the top of the ore storage chute 8 outside the support space. The closure is made by welding Φ159mm steel pipes with 32mm diameter round steel anchors, and wooden boards are densely laid on the steel pipes, and the wooden boards are tied to the steel pipes with wires;

[0087] 4) Install and unload the 7 manganese steel liner of the ore chute according to the design. The installation of the two side forming liners is centered on the center line of the chute, and is suspended from the middle to both sides; the liner on the slope is installed from the vertical liner side to the other side; the two liners are squeezed tightly and welded firmly. The rooting hook is welded on-site, and the welding rods and welding methods used for the welding seams must match the mechanical properties requirements of the steel. For the welds of thick plates with large sections, multi-layer and multi-pass welding is used. The steel bars are tied according to the design requirements and specifications, and the anchor bolts, curved rail beams and other embedded parts are placed, and the concrete is poured;

[0088] 5) Use the time for concrete curing of the unloading chute 7 to enter the lower level for operation. Before entering, coordinate with the dispatcher on the upper and lower parts of the main chute 10, stop the related operations of the main chute 10, and make the ore stored inside the main chute 10 in a static state. The middle-level safe operation construction platform 4 is modified, and a lower passage is reserved in the center of the platform to facilitate the use of a winch to lift various construction materials to the lower working surface. With the help of steel ladders equipped with safety belts and other anti-fall measures, the construction personnel go down to the junction of the chute 9 and the main chute 10 raw ore bin to build the lower-level safe operation construction platform 5. The chute 9 is closed with a steel-wood structure at the lower end. The closed platform needs to reserve a sufficient safety distance from the ore in the raw ore bin to prevent the downward ore in the raw ore bin from affecting the platform. The bolt holes are constructed by using a pneumatic rock drill to seal, and 32mm round steel bolts are injected. Φ159mm steel pipes are welded on the bolts and wooden boards are laid. The wooden boards are tied to the steel pipes with iron wires, and the spacing between the steel pipes shall not be greater than 800mm. The manganese steel lining plates, steel bar tying and concrete pouring of the welded ore chute inclined lane 9 and the ore storage chute section 8 are installed according to the design requirements and specification requirements;

[0089] 6) During the curing time of the concrete in the ore chute 9 and the ore storage chute 8, the installation operation construction platform 3 is set up in the ore unloading chute 7. The installation operation construction platform 3 is set up with a steel-wood structure, and the frame is made of 159mm steel pipes. The spacing between the steel pipes is not more than 1m. The two ends of the steel pipes are welded to the steel lining and formwork brackets on both sides of the ore unloading chute 7. The steel pipes are covered with 50mm thick formworks, and the wooden boards are fixed to the steel pipes with 10# iron wire. The platform elevation is controlled below the upper surface of the corbel wall of the curved track foundation in the ore unloading chute 7 to facilitate the installation and commissioning of the curved track. The mine car unloading system devices such as the supporting wheel beam, supporting wheel, curved track, track and guard rail are installed according to the design requirements and specification requirements.

[0090] It should be noted that the above embodiment only takes an ore unloading station of one size as an example for reference only, and the specific construction is not limited to the above ore unloading station.

[0091] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A layered construction method for a bottom-side unloading station, characterized in that: The invention comprises a layered construction device, which comprises an upper safety operation construction platform (2), a middle safety operation construction platform (4) and a driving system (1); the upper safety operation construction platform (2) is horizontally fixedly built between an unloading chamber (6) and an upper end of an unloading chute (7), and an upper passage running through the upper and lower ends is opened on the upper safety operation construction platform (2); the driving system (1) is fixedly mounted on the upper safety operation construction platform (2); the middle safety operation construction platform (4) is horizontally fixedly built at the junction of the upper end of the ore storage chute (8) and the lower end of the ore unloading chute (7) by means of lifting materials through the driving system (1); The middle-level safe operation construction platform (4) is provided with a lower passage running through from top to bottom; and A lower-level safe operation construction platform (5), wherein the lower-level safe operation construction platform (5) is horizontally fixedly built at the junction of the ore chute (9) and the main chute (10) by lifting materials through the driving system (1), and is used for construction of the ore storage chute (8) and the ore chute (9); It also includes an installation operation construction platform (3), wherein the installation operation construction platform (3) is fixed horizontally It is built at the upper end of the unloading chute (7) and is used for installing and debugging the unloading device; The layered construction method specifically includes the following steps: S1: Build the upper layer of safety operation construction between the unloading chamber (6) and the upper end of the unloading chute (7) Platform (2); S2: Installing the driving system (1) on the upper safety operation construction platform (2); S3: Open an upper passage on the upper safety operation construction platform (2) to The vehicle system (1) hoists materials to build a middle-level safety operation construction platform (4) for construction of the ore unloading chute (7) at the junction of the upper end of the ore storage chute (8) and the lower end of the ore unloading chute (7); S4: A lower passage is opened on the middle-level safety operation construction platform (4) to The vehicle system (1) hoists materials to build a lower-level safe operation construction platform (5) for construction of the ore storage chute (8) and the ore chute (9) at the junction of the ore chute (9) and the main chute (10); A device for installing and debugging the unloading device is built at the upper end of the unloading chute (7). The installation construction platform (3).

2. The layered construction method of the bottom side unloading type unloading station according to claim 1 is characterized in that: The upper safety operation construction platform (2) and the middle safety operation construction platform (4) are both constructed from anchor rods, steel pipes and wooden boards.

3. The layered construction method of the bottom side unloading type unloading station according to claim 1 is characterized in that: The lower safety operation construction platform (5) is constructed of anchor rods, steel pipes and wooden boards.

4. The layered construction method of the bottom side unloading type unloading station according to claim 1 is characterized in that: The installation operation construction platform (3) is constructed of anchor rods, steel pipes and wooden boards.

5. The layered construction method of the bottom side unloading station according to any one of claims 2-3, characterized in that: The crane system (1) is constructed from uprights, track-bearing beams and a crane.

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