Mine shaft ventilation device with guide structure

Abstract

The utility model discloses a mine shaft ventilation device with a guide structure, which comprises a ventilation cylinder arranged in a shaft, the ventilation cylinder is arranged along the depth direction of the shaft, a support guide structure is arranged in the ventilation cylinder, and the support guide structure comprises a plurality of annular support air bags arranged at intervals. The multiple annular supporting air bags are arranged in the length direction of the ventilator, and a continuous air supply channel is formed in the ventilator after the multiple annular supporting air bags expand. The ventilation device further comprises an air pumping pipeline which is arranged in the length direction of the ventilation barrel. According to the utility model, the arrangement difficulty of the ventilator is further reduced, the arrangement efficiency of the ventilator is improved, and the frictional loss between the ventilator and the inner wall of the vertical shaft can also be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation equipment, in particular to a mine shaft ventilation device with a guide structure. Background Art

[0002] Vertical shafts with a vertical height of thousands of meters will be formed at predetermined locations on the surface of the mine. In order to ensure normal ventilation at different locations in the shaft, especially at the bottom, vertically arranged ventilation ducts are usually designed to deliver surface gas to the bottom of the shaft through pressurization.

[0003] In order to reduce the cost and quality of the ventilators and related materials, improve overall safety and facilitate later replacement; the above-mentioned ventilators are usually made of flexible materials. For vertical shafts with larger vertical spans, the above-mentioned ventilators are usually formed by splicing multiple sections.

[0004] For ventilators made of flexible materials, rigid support rings need to be installed at predetermined intervals to ensure that the ventilators are in a relatively stable state during the ventilation process, to avoid affecting the shape of the ventilators in the initial stage of ventilation and the stage of airflow changes, and to avoid friction damage to the ventilators and surrounding structures.

[0005] For the solution of supporting and limiting with support rings, the limiting rings need to be installed again after the ventilation duct is laid, and the installation spacing and the fixed position of the support rings need to be determined comprehensively based on the overall quality and the anchorage status of the inner wall of the shaft. This is time-consuming. For shafts with larger spans, the construction and maintenance time is longer and the cost is higher. Utility Model Content

[0006] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a mine shaft ventilation device with a guide structure, which further reduces the difficulty of arranging the ventilation ducts, improves the efficiency of arranging the ventilation ducts, and can also avoid friction loss between the ventilation ducts and the inner wall of the shaft.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A mine shaft ventilation device with a guide structure includes a ventilation tube installed in the shaft, wherein the ventilation tube is arranged along the depth direction of the shaft, and a guide support structure is provided in the ventilation tube, wherein the guide support structure includes a plurality of annular support air bags arranged at intervals, wherein the plurality of annular support air bags are arranged along the length direction of the ventilation tube, and a continuous air supply channel is formed in the ventilation tube after the plurality of annular support air bags are inflated; and the device also includes an air pump pipe, wherein the air pump pipe is arranged along the length direction of the ventilation tube, and the air pump pipe and the plurality of annular support air bags are in a conducting state, and the top of the air pump pipe is connected to an air supply device through a first air supply pipe.

[0009] Preferably, a plurality of the annular support airbags are installed inside the ventilation tube; by hiding the annular support airbags inside the ventilation tube, the annular support airbags can be protected, and at the same time, the inflated annular support airbags can quickly expand the ventilation tube to form a predetermined ventilation channel.

[0010] Preferably, the annular support airbag and the ventilator are detachably connected via a connecting tool; the detachable connection between the two facilitates early assembly and later maintenance.

[0011] Preferably, the connecting tools are provided in plurality, and the plurality of connecting tools are arranged circumferentially around the annular support airbag; the fixing strength of the annular support airbag can be enhanced by the annular circumferential fixing method, ensuring that the annular support airbag is in a predetermined posture underground.

[0012] Preferably, the axis of the annular support airbag after expansion is the same as the axis of the air supply channel. Through the above arrangement, the air supply channel can be in a relatively continuous state, thereby reducing wind resistance.

[0013] Preferably, the pump air pipeline is made of a flexible material, and the pump air pipeline is located close to one side of the annular support airbag.

[0014] Preferably, the annular support airbag has shrinkage elasticity.

[0015] Preferably, the air supply device is connected to the ventilation duct through a second air supply pipe; after the multiple annular support airbags are fully deployed, the air supply device pumps pressurized gas into the second air supply duct, and the pressurized gas eventually flows toward the bottom of the shaft through the ventilation duct, thereby achieving ventilation and cooling of the bottom of the shaft.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] Through the above-mentioned arrangement, compared with the traditional rigid limiting ring structure, the ventilator and the annular support airbag are made of flexible limiting materials, which is more convenient in storage, transportation and construction, and there is no need to worry about deformation caused by construction; in the actual arrangement process, it is only necessary to ensure that each section of the ventilator is in a straight line expansion state. After multiple ventilators are arranged, it is only necessary to pump gas into the annular support airbag to achieve automatic limiting arrangement, which makes the operation simpler; at the same time, the overall mass of the ventilator and the annular support airbag is lower, and the fixed structure between the ventilator and the shaft is reduced, which further reduces the difficulty of arranging the ventilator and improves the efficiency of the ventilator arrangement, and can also avoid friction loss between the ventilator and the inner wall of the shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is a schematic structural diagram of the first embodiment of the air supply tube of the utility model.

[0020] Figure 3 For the utility model Figure 2 Schematic diagram of the top view structure.

[0021] Figure 4 For the utility model Figure 3 AA section structure schematic diagram.

[0022] Figure 5 For the utility model Figure 4 Schematic diagram of the enlarged structure at B.

[0023] Figure 6 This is a schematic structural diagram of a second embodiment of the air supply tube of the utility model.

[0024] Figure 7 For the utility model Figure 6 Schematic diagram of the side structure.

[0025] Figure 8 For the utility model Figure 7 Enlarged structural diagram at C.

[0026] Fig. 9 For the utility model Figure 6 Schematic diagram of the rear view structure.

[0027] In the figure: 100, vertical shaft; 200, ventilator; 300, annular support airbag; 400, telescopic device; 410, telescopic base; 411, connector one; 412, connecting pipe; 420, telescopic end; 421, connector two; 500, pump air pipe; 600, air supply equipment; 610, first air supply pipe; 620, second air supply pipe; 700, traction device; 710, traction rope; 720, folding rod group; 721, first folding rod; 722, second folding rod; 730, limit slider; 740, limit slide plate. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0030] Vertical shafts with a vertical height of thousands of meters will be formed at predetermined locations on the surface of the mine. In order to ensure normal ventilation at different locations in the shaft, especially at the bottom, vertically arranged ventilation ducts are usually designed to deliver surface gas to the bottom of the shaft through pressurization.

[0031] In order to reduce the cost and quality of the ventilators and related materials, improve overall safety and facilitate later replacement; the above-mentioned ventilators are usually made of flexible materials. For vertical shafts with larger vertical spans, the above-mentioned ventilators are usually formed by splicing multiple sections.

[0032] For ventilators made of flexible materials, rigid support rings need to be installed at predetermined intervals to ensure that the ventilators are in a relatively stable state during the ventilation process, to avoid affecting the shape of the ventilators in the initial stage of ventilation and the stage of airflow changes, and to avoid friction damage to the ventilators and surrounding structures.

[0033] For the solution of supporting and limiting with support rings, the limiting rings need to be installed again after the ventilation duct is laid, and the installation spacing and the fixed position of the support rings need to be determined comprehensively based on the overall quality and the anchorage status of the inner wall of the shaft. This is time-consuming. For shafts with larger spans, the construction and maintenance time is longer and the cost is higher.

[0034] In order to solve the above problems, refer to the attached Figure 1-9 A mine shaft ventilation device is provided, including a ventilation duct 200 installed in the shaft 100, the ventilation duct 200 is arranged along the depth direction of the shaft 100, and the ventilation duct 200 is located near the edge of the shaft 100; it also includes an air supply device 600 arranged on the ground, through which air is blown into the ventilation duct 200, and the air on the ground is continuously pressed into the bottom position of the shaft 100, to ensure normal ventilation and cooling requirements at the bottom of the shaft 100.

[0035] A plurality of annular support airbags 300 are also provided inside the ventilation duct 200, and the plurality of annular support airbags 300 are arranged at intervals. Pumping gas into the plurality of annular support airbags 300 can put the annular support airbags 300 into an expanded state. The expanded annular support airbags 300 can play a supporting and limiting role, and can support the ventilation duct 200 at various positions to prevent the airflow inside the ventilation duct 200 from affecting the ventilation duct 200.

[0036] The annular support airbag 300 and the ventilation tube 200 are detachably connected, and the ventilation tube 200 and the annular support airbag 300 can be fixed by a flexible or rigid connecting tool. The connecting tool is arranged circumferentially around the annular support airbag 300 to ensure the stability of the fixation between the annular support airbag 300 and the ventilation tube 200.

[0037] The annular support airbag 300 can be designed to have a certain degree of shrinkage elasticity, and the gas in the annular support airbag 300 can be discharged in the normal transportation and storage state. The flexible ventilator 200 and the annular support airbag 300 can be disassembled and folded, which is convenient for the storage and transportation of the ventilator 200 and the annular support airbag 300, and reduces the volume; at the same time, there is no need to worry about deformation during storage, transportation and subsequent use, forming the actual appearance state of the annular support airbag 300 after unfolding.

[0038] When the ventilation duct 200 is arranged, in order to meet the air supply needs of multiple annular support airbags 300, a pump air pipe 500 is also arranged inside the ventilation duct 200. The pump air pipe 500 here is in contact with the annular support airbag 300 and extends along the circumferential direction of the annular support airbag 300. Each annular support airbag 300 and the pump air pipe 500 are connected. By pumping gas into the multiple annular support airbags 300 through the pump air pipe 500, the multiple annular support airbags 300 can be expanded. The expanded annular support airbags 300 can form an annular support structure to support and limit the ventilation duct 200 from the inside.

[0039] Through the above-mentioned arrangement, compared with the traditional rigid limiting ring structure, the ventilation duct 200 and the annular support airbag 300 are made of flexible limiting materials, which are more convenient in storage, transportation and construction, and there is no need to worry about deformation caused by construction; in the actual arrangement process, it is only necessary to ensure that each section of the ventilation duct 200 is in a linear expanded state. After multiple ventilation ducts 200 are arranged, it is only necessary to pump gas into the annular support airbag 300 to achieve automatic limiting arrangement, which is simpler to operate; at the same time, the overall mass of the ventilation duct 200 and the annular support airbag 300 is lower, and the fixed structure between the ventilation duct 200 and the shaft 100 is reduced, which further reduces the difficulty of arranging the ventilation duct 200 and improves the efficiency of the arrangement of the ventilation duct 200. It can also avoid friction loss between the ventilation duct 200 and the inner wall of the shaft 100.

[0040] It should also be noted that, for the ventilation tube 200 with a multi-section design, the pump air pipe 500 here can also be a multi-section of spliced ​​design. The multiple sections of the pump air pipe 500 are spliced ​​together by an air guide structure to ensure that the gas can enter the multiple annular support airbags 300 to achieve normal expansion control; at the same time, the connection between the multiple sections of the ventilation tube 200 is also designed to be sealed to prevent gas overflow.

[0041] When the depth of the shaft 100 increases, the ventilation duct 200 of modular design can be further spliced ​​below the ventilation duct 200 to extend the overall length of the ventilation duct 200.

[0042] In order to adapt to the structure of the new annular support airbag 300 and the ventilation duct 200, the air supply device 600 has also been adaptively improved; the air supply device 600 has a first air supply pipe 610 connected to the pump air pipeline 500 and a second air supply pipe 620 connected to the inside of the ventilation duct 200; after the ventilation duct 200 and the annular support airbag 300 are arranged, the air supply device 600 controls the gas to enter the first air supply pipe 610, which can control the expansion of multiple annular support airbags 300 to achieve the arrangement of the overall structure; after the ventilation duct 200 and the annular support airbag 300 are arranged, an air supply channel is formed inside the ventilation duct 200, and then the gas is controlled to enter the ventilation duct 200 from the second air supply pipe 620, and the pressurized gas can flow in a directional manner toward the bottom in the ventilation duct 200 to achieve continuous air supply in the shaft 100.

[0043] Furthermore, during the construction of the shaft 100, the bottom depth gradually increases, and the distance between the bottom of the ventilation duct 200 and the bottom of the shaft 100 cannot exceed the design requirements; in order to meet the demand for air supply, a shorter ventilation duct 200 will be designed separately for transition; this increases the design and installation costs and difficulty, and reduces the efficiency of underground construction.

[0044] In order to solve the above problems, a telescopic device 400 is designed between adjacent annular support airbags 300. The telescopic device 400 can be telescopically arranged to change the distance between the two annular support airbags 300, thereby controlling the overall length of the section of the ventilation duct 200, thereby realizing real-time control and adjustment of the bottom of the ventilation duct 200 and the bottom of the shaft 100, and meeting the real-time ventilation needs of the bottom of the shaft 100.

[0045] The telescopic device 400 that can be telescopically arranged does not need to be arranged as a whole, and one or several sections can be designed separately at the bottom position or in the middle position close to the bottom.

[0046] The telescopic device 400 here includes a telescopic base 410 and a telescopic end 420. The telescopic base 410 is fixed to the ventilation duct 200 through a connecting piece 411, and the telescopic end 420 is fixed to the inner wall of the ventilation duct 200 through a connecting piece 421. During the contraction of the telescopic base 410 and the telescopic end 420, the ventilation duct 200 between the two can be controlled to contract so as to reduce the overall length of this section of the ventilation duct 200.

[0047] The telescopic base 410 and the telescopic end 420 here can be telescoped in a pneumatically controlled manner. The bottom of the telescopic base 410 is connected to the pump air pipeline 500 through a connecting pipe 412, and can share a set of air supply equipment 600; at the same time, an elastic element can be designed between the telescopic base 410 and the telescopic end 420, and an air release valve is installed at the bottom of the telescopic base 410; in the process of controlling the telescopic base 410 and the telescopic end 420 to contract, the connecting pipe 412 is closed and the air release valve is opened. At this time, under the action of the elastic element, the telescopic base 410 and the telescopic end 420 are controlled to continue to contract; in the state of controlling the telescopic base 410 and the telescopic end 420 to extend, on the contrary, the connecting pipe 412 is opened, the air release valve is closed, and the air pressure in the telescopic device 400 is continuously increased to realize the extension control of the telescopic base 410 and the telescopic end 420.

[0048] It should also be noted that adjacent telescopic devices 400 are also detachably connected via connecting workpieces to facilitate the disassembly and assembly and accommodation of the overall structure; after installation, multiple telescopic devices 400 can form an overall structure arranged along the length direction, and positioning a single telescopic device 400 can ensure the stability of the overall structure of this section of the ventilator 200 and the annular support airbag 300.

[0049] During the contraction of the telescopic base 410 and the telescopic end 420, in order to guide the folding arrangement on the outside of the ventilator 200 and control it to move toward a predetermined trajectory on the outside, a plurality of traction devices 700 are further installed on the outside of the ventilator 200. Each traction device 700 corresponds to the telescopic device 400. During the contraction of the telescopic device 400, the traction device 700 can be controlled to be in a laterally expanded state. The two sides of the traction device 700 are fixed to the outer wall of the ventilator 200 by a traction rope 710. During the laterally expanding process of the traction device 700, the ventilator 200 can be guided, thereby ensuring that the size of the air supply channel in the ventilator 200 is relatively normal and ensuring a normal pressurized ventilation process.

[0050] Specifically, the traction device 700 here includes two groups of symmetrically arranged folding rod groups 720, and the folding rod groups 720 are composed of a first folding rod 721 and a second folding rod 722. The first folding rod 721 and the second folding rod 722 are rotatably connected to form a first rotating joint, and there are two second rotating joints between the two groups of folding rod groups 720, and the two second rotating joints are respectively connected to the connecting member 2 421 and the connecting member 1 411; in the process of the connecting member 1 411 and the connecting member 2 421 moving away from or approaching each other, the two groups of folding rod groups 720 are controlled to bend, and the traction rope 710 here is connected to the first rotating joint bent on the outside of the folding rod group 720. In the process of the first rotating joints on both sides moving toward the outside, the outer wall of the ventilation duct 200 can be pulled toward the outside through the traction rope 710, so as to guide the folding of the outer wall of the ventilation duct 200.

[0051] At the same time, in order to limit the freedom of connector 2 421 and connector 1 411 and improve the stability of the overall structure inside the shaft 100, a limiting slider 730 and a limiting slide 740 are also installed on the outside of connector 1 411 and connector 2 421; the limiting slider 730 is arranged as a plurality of sliders that slide along the length direction of the limiting slide 740, and connector 2 421, connector 1 411 and the corresponding limiting slider 730 are connected, which can guide and limit the outer telescopic device 400, folding rod group 720, traction rope 710 and other structures, thereby ensuring the stability of the ventilation duct 200 during the length contraction process.

[0052] Similarly, the limiting slide plate 740 here is installed on the inner wall of the shaft 100 through a special positioning workpiece, and its installation position can be quickly adjusted to meet the installation requirements of the ventilator 200 in different scenarios.

[0053] The utility model is further described below in conjunction with the ventilation method.

[0054] The specific steps include:

[0055] S1. Place the multi-section ventilation duct 200 at different positions in the shaft 100, and connect the multi-section ventilation duct 200 and the annular support air bag 300, pump air pipeline 500 and other structures inside the ventilation duct 200 end to end.

[0056] S2. Continuously pump gas into the pump air pipe 500 to control the multiple annular support airbags 300 to be in an expanded state. After the annular support airbags 300 are expanded and formed, an annular limiting structure can be formed to form an air supply channel between the multiple sections of the ventilation ducts 200.

[0057] S3. After the air supply channel is formed, the pressurized gas is continuously pumped into the ventilation duct 200, so that the air on the ground can be continuously pumped into the bottom of the shaft 100, thereby achieving continuous air supply and cooling at the bottom of the shaft 100.

[0058] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A mine shaft ventilation device with a guide structure, comprising a ventilation cylinder (200) installed in a shaft (100), wherein the ventilation cylinder (200) is arranged along the depth direction of the shaft (100), and a guide support structure is provided in the ventilation cylinder (200), characterized in that: The guide support structure comprises a plurality of annular support airbags (300) arranged at intervals, wherein the plurality of annular support airbags (300) are arranged along the length direction of the ventilation cylinder (200), and a continuous air supply channel is formed in the ventilation cylinder (200) after the plurality of annular support airbags (300) are inflated; and further comprises an air pumping pipeline (500), wherein the air pumping pipeline (500) is arranged along the length direction of the ventilation cylinder (200), and the air pumping pipeline (500) and the plurality of annular support airbags (300) are in a conducting state, and the top of the air pumping pipeline (500) is connected to an air supply device (600) via a first air supply pipe (610).

2. The mine shaft ventilation device with a guide structure according to claim 1, characterized in that: The plurality of annular support air bags (300) are installed inside the ventilation cylinder (200).

3. The mine shaft ventilation device with a guide structure according to claim 1 or 2, characterized in that: The annular support airbag (300) and the ventilation cylinder (200) are detachably connected via a connecting tool.

4. The mine shaft ventilation device with a guide structure according to claim 3, characterized in that: The connection tools are provided in plurality, and the plurality of connection tools are circumferentially arranged around the annular support airbag (300).

5. The mine shaft ventilation device with a guide structure according to claim 1, characterized in that: The axis of the annular support airbag (300) after expansion is the same as the axis of the air supply channel.

6. The mine shaft ventilation device with a guide structure according to claim 1, characterized in that: The pump air pipeline (500) is made of a flexible material, and the pump air pipeline (500) is located close to a side of the annular support airbag (300).

7. The mine shaft ventilation device with a guide structure according to claim 1, characterized in that: The annular supporting airbag (300) has contraction elasticity.

8. The mine shaft ventilation device with a guide structure according to claim 1, characterized in that: The air supply device (600) is connected to the ventilation cylinder (200) via a second air supply pipe (620).

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