Underground mine unloading system

Abstract

The utility model discloses an underground mine discharging system, and belongs to the field of mine production. The device comprises a main haulage roadway and an operation roadway connected with the main haulage roadway, and further comprises a beam crane and a mine car. One end of a hanging beam of the beam crane is located at the joint of the main transportation roadway and the operation roadway, and the other end of the hanging beam extends into the operation roadway; the mine car is provided with a lifting rope connecting piece and a discharging arm, the lifting rope connecting piece and the discharging arm are respectively provided with a rope used for being connected with a lifting hook of the beam crane, and the discharging arm is installed on one side of the outer wall of the mine car. According to the utility model, the existing unloading system is improved, so that the unloading efficiency can be effectively improved, and the capital construction speed of an underground mine is accelerated.

Description

Technical Field

[0001] The utility model belongs to the field of mine production, and more specifically relates to an underground mine unloading system. Background Art

[0002] Whether it is infrastructure or production, underground mines require a large amount of sand and stone support materials every day. These sand and stone materials are loaded onto mine cars on the surface, and then transported to the main transportation horizontal tunnel underground through the shaft cage. The sand and stone materials in the mine car are unloaded at the appropriate position in the main transportation horizontal tunnel, and then transported to the tunnel that needs support by other machinery. The sand and stone materials in the mine car are unloaded in the main transportation horizontal tunnel, usually manually with a shovel or directly unloading the mine car sideways. The disadvantages of these two methods are that they are labor-intensive and time-consuming, easily cause pollution to the main transportation tunnel, are difficult to control, and require manual secondary cleaning, with many processes and low efficiency.

[0003] The Chinese patent application number is: CN202011127990.7, and the patent document with the publication date of December 18, 2020 discloses a pull-out bottom-unloading mine car involving the field of mining machinery technology. The material door is a pull-out structure, and a pulling part is provided at one end of the material door. The frame is provided with longitudinal baffles on both sides of the discharge port of the car box below the discharge port, and each baffle is provided with a row of guide wheels below the baffle. The guide wheels are fixed to the frame in a straight line longitudinally and there is a gap between the baffles for the material door to be inserted. The material door is inserted through this gap and blocked at the discharge port of the car box. The material door can be opened by pulling the pulling part of the material door. Although this scheme can improve the unloading efficiency, it unloads through the bottom pull-out material door, and the material door has a large load-bearing capacity. After long-term use, it is easily damaged and cannot be pulled open, thereby affecting transportation and unloading.

[0004] The Chinese patent application number is: CN202123271554.X, and the patent document with the publication date of August 26, 2022 discloses a unloading mine car, including a mine car body and a support baffle arranged inside the mine car body; wherein the left side wall and the right side wall are flaps, and a positioning piece is provided at the connection between the flap and the bottom plate, and a fixing position matching the positioning piece is provided on the bottom plate, and the positioning piece is arranged in the fixed position to realize the fixation of the flap and the bottom plate; the support baffle includes a left support plate and a right support plate; one side of the left support plate and the right support plate intersect, and the other side of the left support plate and the right support plate intersect with the left and right edges of the bottom plate respectively, and the length of the left support plate and the right support plate is consistent with the length of the flap. This plan mainly improves the structure of the mine itself, especially the internal structure of the mine car. In underground mining operations, the internal wear of the mine car is relatively serious. The relatively complex internal structure of the mine car does not have a long service life. After long-term operation, it may be damaged and affect transportation and unloading. Summary of the invention

[0005] 1. Problems to be solved

[0006] In view of the problem that the existing unloading devices are difficult to meet the complex working conditions of underground mines and unloading is time-consuming and labor-intensive in underground mine operations, the utility model provides an underground mine unloading system. By improving the existing unloading system, the unloading efficiency can be effectively improved and the construction speed of underground mines can be accelerated.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] An underground mine unloading system includes a main transport tunnel and an operating tunnel connected to the main transport tunnel, and also includes a beam crane and a mine car. One end of the beam of the beam crane is located at the junction of the main transport tunnel and the operating tunnel, and the other end extends into the inside of the operating tunnel; the mine car is equipped with a suspension rope connector and a discharge arm, and the suspension rope connector and the discharge arm are both equipped with ropes for connecting to the hook of the beam crane, and the discharge arm is installed on one side of the outer wall of the mine car.

[0010] As a further improvement of the technical solution, a detachable baffle is provided at the lower part of the mine car on the other side relative to the discharge arm.

[0011] As a further improvement of the technical solution, a U-shaped hanging rod is respectively installed at both ends and the middle of the hanging beam. The U-shaped hanging rod is open upward and the inner bottom is welded to the hanging beam. The upper end of the U-shaped hanging rod is welded with an anchor rod anchored in the top of the working tunnel.

[0012] As a further improvement of the technical solution, the anchor rod is anchored into the top of the working tunnel by no less than 1000mm and exposed by no less than 100mm.

[0013] As a further improvement of the technical solution, a ferrule is provided at the end of the rope.

[0014] As a further improvement of the technical solution, a guide rail adapted to the mine car is installed at the bottom of the main transport tunnel.

[0015] As a further improvement of the technical solution, a vertical shaft is provided at the end of the main transport tunnel.

[0016] As a further improvement of the technical solution, a buffer bumper is installed on the outer side of the mine car.

[0017] As a further improvement of the technical solution, the upper cross-section of the main transport tunnel and the working tunnel is semicircular or arched, and the lower cross-section is rectangular.

[0018] 3. Beneficial effects

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] (1) The utility model provides an underground mine unloading system, which effectively improves the unloading efficiency of the mine car and speeds up the construction of underground mines by installing a beam crane in the working tunnel and simply improving the outer structure of the mine car without affecting the weighing capacity and structural strength of the mine car itself;

[0021] (2) The utility model provides an underground mine unloading system, in which a detachable baffle is provided at the bottom of the mine. By opening the baffle, the materials that are difficult to unload in the mine car can be unloaded through the gap, thereby improving the unloading effect of the mine car;

[0022] (3) The utility model provides an underground mine unloading system, which improves the structural strength of the crane beam by setting a U-shaped lifting rod, thereby ensuring the normal operation of the crane;

[0023] (4) The utility model provides an underground mine unloading system, in which a ferrule is installed at the end of the rope, which can be easily assembled and disassembled from a crane hook, thereby improving unloading efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the plan structure of the unloading system;

[0025] Figure 2 This is a schematic diagram of the structure in the unloading system operation tunnel;

[0026] In the figure: 1. Vertical shaft; 2. Main transport tunnel; 3. Working tunnel; 4. Guide rail; 5. Mine car; 6. Beam crane; 7. Rope; 8. Unloading arm. DETAILED DESCRIPTION

[0027] Exemplary embodiments of the present invention are described in detail below. Although these exemplary embodiments are described in sufficient detail to enable those skilled in the art to implement the present invention, it should be understood that other embodiments may be implemented and various changes may be made to the present invention without departing from the spirit and scope of the present invention. The more detailed description of the embodiments of the present invention below is not intended to limit the scope of the claimed present invention, but is merely for illustration and does not limit the description of the features and characteristics of the present invention, in order to propose the best way to perform the present invention, and is sufficient to enable those skilled in the art to implement the present invention. Therefore, the scope of the present invention is limited only by the appended claims.

[0028] Example 1

[0029] like Figure 1 to Figure 2As shown, an underground mine unloading system includes a main transport tunnel 2 and an operating tunnel 3 connected to the main transport tunnel 2. A vertical shaft 1 is provided at the end of the main transport tunnel 2, and a guide rail 4 adapted to a mine car 5 is installed at the bottom. During operation, sand and gravel are loaded into the mine car 5 on the ground, and the mine car 5 passes through the vertical shaft 1 from the ground surface to the underground main transport tunnel 2, and is transported to the opening of the operating tunnel 3 through the guide rail 4 on the bottom plate of the main transport tunnel 2.

[0030] In this embodiment, the vertical shaft 1 has a circular cross-section. It is a shaft constructed according to design and leads from the surface to various horizontal tunnels underground. It is responsible for the up and down movement of personnel and materials, ore lifting and ventilation. The main transport tunnel 2 and the working tunnel 3 are special tunnels for underground mine production constructed according to design. The upper cross-section is semicircular or arched, and the lower cross-section is rectangular. The cross-sectional size should meet the safety standards for vehicle transportation, ventilation, etc. in underground production and construction. The working tunnel 3 is a number of trackless horizontal tunnels or chambers. As the mining position changes, the construction is gradually moved forward. Adjacent working tunnels 3 are interconnected and connected to the main transport tunnel 2 at right angles or a certain angle. The mine car 5 is 1.2m 3 The curved track side-dumping mine car is a standard product for mining, and a buffer bumper is installed on the outside to prevent the mine car from being damaged by collision.

[0031] In order to improve the unloading efficiency, the system has been improved as follows. A beam crane 6 is provided, one end of the beam of the beam crane 6 is located at the junction of the main transport tunnel 2 and the working tunnel 3, and the other end extends to the inside of the working tunnel 3. The mine car 5 is equipped with a lifting rope connector and a discharge arm 8, and the lifting rope connector and the discharge arm 8 are both equipped with a rope 7 for connecting with the hook of the beam crane 6. The discharge arm 8 is installed on one side of the outer wall of the mine car 5. In this embodiment, the beam crane 6 is an existing 5t standard lifting machinery, and the lifting rope connector is a lifting lug or a lifting ring.

[0032] During operation, the mine car 5 loaded with sand and gravel is transported to the junction of the main transportation tunnel 2 and the working tunnel 3 underground, and the rope 7 on the rope connector is hung on the hook of the beam crane 6. Then the mine car 5 is lifted, and it moves along the direction of the lifting beam to the unloading point, the mine car 5 is lowered, and the rope on the hook is loosened. Then the rope 7 on the unloading arm 8 is hung on the hook of the beam crane 6, and the hook is lifted to drive the unloading arm 8 to move up, so that the mine car 5 is tilted for unloading. After unloading is completed, the rope 7 on the unloading arm 8 is removed, and the rope 7 on the rope connector is hung on the hook of the beam crane 6 again, and the hook is lifted to transport the empty mine car 5 back to the guide rail 4 of the main transportation tunnel 2, and then the empty mine car 5 is lifted to the ground through the shaft 1.

[0033] In addition, a detachable baffle is provided at the lower part of the other side of the mine car 5 relative to the discharge arm 8. By opening the baffle, the materials that are difficult to unload in the mine car can be discharged through the gap, thereby improving the unloading effect of the mine car. A U-shaped hanging rod is respectively installed at both ends and the middle part of the hanging beam. The U-shaped hanging rod is open upward and the inner bottom is welded to the hanging beam. The upper end of the U-shaped hanging rod is welded with an anchor rod anchored in the top of the working tunnel 3, thereby improving the structural strength of the crane hanging beam and ensuring the normal operation of the crane. Among them, the U-shaped hanging rod and the anchor rod are both round steel with a diameter of 20 mm. The anchor rod is anchored in the top of the working tunnel 3 by not less than 1000 mm and exposed by not less than 100 mm. At the same time, the end of the rope 7 is equipped with a ferrule, which can easily realize the disassembly and assembly between the crane hook and improve the unloading efficiency.

[0034] In this embodiment, the rope 7 is a steel wire rope, and its specification and length should meet the safety requirements for lifting, running and unloading the mine car 5 loaded with sand and gravel.

[0035] In summary, an underground mine unloading system of this embodiment, by installing a beam crane in the working tunnel and making simple improvements to the outer structure of the mine car, effectively improves the unloading efficiency of the mine car and speeds up the construction of underground mines without affecting the weighing capacity and structural strength of the mine car itself.

Claims

1. An underground mine unloading system, comprising a main transport tunnel (2) and an operating tunnel (3) connected to the main transport tunnel (2), characterized in that: It also includes a beam crane (6) and a mine car (5); one end of the beam of the beam crane (6) is located at the intersection of the main transport tunnel (2) and the working tunnel (3), and the other end extends into the interior of the working tunnel (3); the mine car (5) is equipped with a suspension rope connector and a discharge arm (8), and the suspension rope connector and the discharge arm (8) are both equipped with ropes (7) for connecting to the hook of the beam crane (6), and the discharge arm (8) is installed on one side of the outer wall of the mine car (5).

2. An underground mine unloading system according to claim 1, characterized in that: A detachable baffle is provided at the lower part of the other side of the mining car (5) relative to the discharge arm (8).

3. An underground mine unloading system according to claim 1, characterized in that: A U-shaped hanging rod is respectively installed at both ends and the middle of the hanging beam. The U-shaped hanging rod is open upward and the inner bottom is welded to the hanging beam. The upper end of the U-shaped hanging rod is welded to an anchor rod anchored in the top of the working tunnel (3).

4. An underground mine unloading system according to claim 3, characterized in that: The anchor rod is anchored into the top of the working tunnel (3) by no less than 1000 mm and exposed by no less than 100 mm.

5. An underground mine unloading system according to claim 1, characterized in that: The end of the rope (7) is provided with a ferrule.

6. An underground mine unloading system according to any one of claims 1 to 5, characterized in that: A guide rail (4) adapted for a mine car (5) is installed at the bottom of the main transport tunnel (2).

7. An underground mine unloading system according to any one of claims 1 to 5, characterized in that: A vertical shaft (1) is provided at the end of the main transport tunnel (2).

8. An underground mine unloading system according to any one of claims 1 to 5, characterized in that: A buffer bumper is arranged on the outer side of the mining car (5).

9. An underground mine unloading system according to any one of claims 1 to 5, characterized in that: The upper cross-section of the main transport tunnel (2) and the working tunnel (3) is semicircular or arched, and the lower cross-section is rectangular.

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