Pumping drainage device

Abstract

The utility model provides a pumping and discharging device which is used for pumping and discharging gas generated by roadway blasting, a blasting hole is formed in the wall face of a roadway, the blasting hole is communicated with the roadway, and the pumping and discharging device comprises an anti-overflow piece which is arranged in the roadway and connected with the wall face of the roadway. The anti-overflow piece is provided with a protection opening and a protection cavity communicating with the protection opening, and the protection opening is formed in the periphery of the blast hole in a surrounding mode so that the blast hole can communicate with the protection cavity through the protection opening; one end of the first pumping and discharging pipeline is connected with the blast hole, and the other end of the first pumping and discharging pipeline penetrates through the anti-overflow piece and extends out of the protection cavity; and one end of the second pumping and discharging pipeline communicates with the protection cavity, and the other end of the second pumping and discharging pipeline penetrates through the anti-overflow piece and extends out of the protection cavity. By adopting the technical scheme provided by the utility model, the problem that harmful gas easily enters a working surface in the prior art can be solved.

Description

Technical Field

[0001] This utility model relates to the field of coal mine safety devices, and more specifically, to a pumping device. Background Technology

[0002] Currently, with the increasing depth of coal mining in my country, rock bursts have gradually become one of the major hazards threatening safe production in coal mines. In existing technologies, most coal mines still primarily rely on traditional coal seam decompression blasting methods to address the problem of high pressure on the overlying strata.

[0003] However, after decompression blasting of coal seams, a large amount of toxic and harmful gases, mainly carbon monoxide, are generated. Especially when the roof of the return air roadway is blasted, these harmful gases are likely to escape from the cracks near the blast holes or boreholes and enter the return air area of ​​the working face along the return air roadway, and then enter the working area of ​​the workers, which will seriously threaten the safety of production operations and the health of the workers. Utility Model Content

[0004] The main purpose of this invention is to provide an extraction device to solve the problem of harmful gases easily entering the working face in the prior art.

[0005] To achieve the above objectives, this utility model provides a gas extraction device for extracting gases generated during tunnel blasting. The tunnel wall has blasting holes that communicate with the tunnel. The extraction device includes:

[0006] An overflow prevention component is installed inside the tunnel and is connected to the tunnel wall. The overflow prevention component has a protective opening and a protective cavity that communicates with the protective opening. The protective opening is located around the periphery of the blast hole so that the blast hole can communicate with the protective cavity through the protective opening.

[0007] The first drainage pipeline has one end connected to the rupture hole and the other end passing through the anti-overflow component and extending out of the protective cavity.

[0008] The second exhaust pipe has one end connected to the protective cavity, and the other end passes through the anti-overflow component and extends out of the protective cavity.

[0009] Furthermore, the extraction device also includes:

[0010] An extraction component is installed at the end of the blast hole. The extraction component is used to generate a suction force to extract the gas at the blast hole. The inlet of the extraction component is connected to the blast hole, and the outlet of the extraction component is connected to one end of the first extraction pipeline.

[0011] Furthermore, there are multiple blasting holes, spaced apart at the top of the roadway, and all of these blasting holes are connected to the inlet of the extraction component; and / or,

[0012] There are multiple second-stage drainage pipes, with one end of each pipe spaced apart inside the protective cavity.

[0013] Furthermore, drainage holes are also provided on the walls of the tunnel, spaced apart from the blasting holes. The pumping device also includes:

[0014] The third drainage pipe has one end connected to the drainage hole, and the other end passes through the anti-overflow component and extends out of the protective cavity.

[0015] Furthermore, there are at least two drainage holes, which are respectively set on both sides of the blast hole. There are at least two third drainage pipes, which are set one-to-one with the at least two drainage holes, and each third drainage pipe is connected to the corresponding blast hole.

[0016] Furthermore, the extraction device also includes:

[0017] The collector is installed inside the tunnel and outside the protective cavity. The collector has a collection pipeline, and the other ends of the first drainage pipeline, the second drainage pipeline, and the third drainage pipeline are all connected to the collection pipeline.

[0018] Furthermore, the extraction device also includes:

[0019] A first steel wire reinforced flexible hose is disposed between the first drainage line and the collector, so that the first drainage line is connected to the collector via the first steel wire reinforced flexible hose; and / or

[0020] A second steel wire reinforced flexible hose is installed between the second drainage line and the collector, so that the second drainage line is connected to the collector via the second steel wire reinforced flexible hose; and / or

[0021] The third steel wire skeleton hose is installed between the third exhaust pipeline and the collector so that the third exhaust pipeline can be connected to the collector through the third steel wire skeleton hose.

[0022] Furthermore, the spill containment element is made of flexible fabric.

[0023] Furthermore, the anti-overflow component is provided with a first connecting port, through which a first extraction pipe extends out of the protective cavity; the anti-overflow component is provided with a second connecting port, through which a second extraction pipe extends out of the protective cavity; the extraction device also includes:

[0024] A first fastening sleeve, the shape of which is adapted to the shape of a first extraction pipe, is fitted onto the first extraction pipe and limits a portion of the anti-overflow element located at the first connection port between the first fastening sleeve and the first extraction pipe, thereby sealing the first connection port through the first fastening sleeve; and / or,

[0025] The second fastening sleeve is adapted to the shape of the second extraction pipeline. The second fastening sleeve is fitted onto the second extraction pipeline and limits the portion of the anti-overflow member located at the second connection port between the second fastening sleeve and the second extraction pipeline, so as to seal the second connection port through the second fastening sleeve.

[0026] Furthermore, the protective cavity is a funnel-shaped cavity.

[0027] By applying the technical solution of this utility model, by setting a corresponding extraction device below the blast hole and installing an anti-overflow component on the extraction device to prevent gas from overflowing, it is possible to prevent toxic gases such as carbon monoxide generated by blasting from entering the working roadway through the blast hole or the cracks around the blast hole, which can effectively solve the problem of harmful gases entering the working face in the prior art. Attached Figure Description

[0028] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0029] Figure 1 A schematic diagram of the extraction device provided according to an embodiment of the present invention is shown.

[0030] The above figures include the following reference numerals:

[0031] 10. Blasting holes;

[0032] 20. Overflow prevention component; 21. Protective opening; 22. Protective cavity;

[0033] 31. First drainage pipeline; 32. Second drainage pipeline; 33. Third drainage pipeline;

[0034] 40. Drainage component; 50. Drainage hole;

[0035] 60. Manifold; 61. Manifold piping;

[0036] 71. First steel wire reinforced hose; 72. Second steel wire reinforced hose; 73. Third steel wire reinforced hose;

[0037] 81. First fastening sleeve; 82. Second fastening sleeve. Detailed Implementation

[0038] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0039] Please refer to Figure 1 In Embodiment 1 of this utility model, a gas extraction device is provided for extracting gas generated during tunnel blasting. A blast hole 10 is provided on the tunnel wall, communicating with the tunnel. The extraction device includes an anti-overflow component 20, a first extraction pipe 31, and a second extraction pipe 32. The anti-overflow component 20 is disposed within the tunnel and connected to the tunnel wall. The anti-overflow component 20 has a protective opening 21 and a protective cavity 22 communicating with the protective opening 21. The protective opening 21 surrounds the periphery of the blast hole 10, allowing communication between the blast hole 10, the protective opening 21, and the protective cavity 22. One end of the first extraction pipe 31 is connected to the blast hole 10, and the other end passes through the anti-overflow component 20 and extends out of the protective cavity 22. One end of the second extraction pipe 32 communicates with the protective cavity 22, and the other end passes through the anti-overflow component 20 and extends out of the protective cavity 22.

[0040] With this configuration, by installing a drainage device with an anti-overflow component 20 below the blast hole, the anti-overflow component 20 can seal harmful gases such as carbon monoxide generated after the blast inside the protective cavity 22, thereby preventing gas overflow. Furthermore, by setting up a first drainage pipe 31, the gas at the blast hole 10 can be pumped to a specific location, and by setting up a second drainage pipe 32, the gas overflowing into the protective cavity 22 can be pumped to a specific location. This concentrates the harmful gases in the protective cavity 22 and facilitates their centralized removal, thereby further preventing harmful gases from entering the return airway or other roadway working faces through the blast hole and other fissures. Therefore, it can effectively solve the problem of harmful gases easily entering the working face in the prior art.

[0041] In this embodiment, the extraction device further includes an extraction component 40. The extraction component 40 is disposed at the end of the blast hole 10 and is used to generate a suction force to extract the gas at the blast hole 10. The inlet of the extraction component 40 is connected to the blast hole 10, and the outlet of the extraction component 40 is connected to one end of the first extraction pipeline 31. With this arrangement, by correspondingly placing the extraction component 40 at the end of the blast hole 10, the gas inside the blast hole can be extracted into the first extraction pipeline 31 through the action of the extraction component 40, thereby preventing most of the gas from overflowing and further solving the problem of harmful gases entering the working face.

[0042] Among them, the exhaust component 40 can be an exhaust fan or other structure with exhaust capability.

[0043] Specifically, there are multiple blasting holes 10, which are spaced apart at the top of the roadway, and all of the blasting holes 10 are connected to the inlet of the extraction component 40. This arrangement can enhance the effect of blasting and pressure relief, and further protect the safety of the roadway.

[0044] Alternatively, there can be multiple second extraction pipes 32, with one end of each pipe spaced apart within the protective cavity 22. This arrangement further enhances the extraction effect of gas within the protective cavity 22.

[0045] Alternatively, multiple rupture holes 10 and second extraction pipes 32 can be configured simultaneously. This can improve the gas extraction effect while enhancing the pressure relief effect.

[0046] In this embodiment, drainage holes 50 are also provided on the wall of the tunnel, spaced apart from the blasting holes 10. The extraction device also includes a third extraction pipe 33. One end of the third extraction pipe 33 is connected to the drainage hole 50, and the other end of the third extraction pipe 33 passes through the anti-overflow member 20 and extends out of the protective cavity 22. With this arrangement, the gas in the rock fissures caused by the blasting can be guided through the drainage hole 50, and the gas can be extracted from the rock strata through the third extraction pipe 33, which can further improve the gas extraction effect and further prevent the possibility of harmful gases entering the working face.

[0047] Specifically, there are at least two drainage holes 50, each located on one side of the blast hole 10. There are also at least two third extraction pipes 33, each corresponding to one of the drainage holes 50, and each third extraction pipe 33 is connected to its corresponding blast hole 10. This arrangement, by setting at least two drainage holes 50 and at least two third extraction pipes 33, further enhances the gas guiding and venting functions, and further prevents harmful gases from entering the working face.

[0048] In this embodiment, the extraction device further includes a collector 60. The collector 60 is located inside the tunnel, outside the protective cavity 22. The collector 60 has a collection pipe 61, through which the other ends of the first extraction pipe 31, the second extraction pipe 32, and the third extraction pipe 33 are all connected. With this arrangement, the gas within the first extraction pipe 31, the second extraction pipe 32, and the third extraction pipe 33 can be collected via the collection pipe 61 and then uniformly guided to a collection or treatment device for gas disposal, thereby improving the gas disposal efficiency of the extraction device.

[0049] Specifically, the extraction device further includes a first wire-reinforced flexible hose 71, which is disposed between the first extraction pipeline 31 and the collector 60, so that the first extraction pipeline 31 is connected to the collector 60 through the first wire-reinforced flexible hose 71. Alternatively, the extraction device further includes a second wire-reinforced flexible hose 72, which is disposed between the second extraction pipeline 32 and the collector 60, so that the second extraction pipeline 32 is connected to the collector 60 through the second wire-reinforced flexible hose 72. Still alternatively, the extraction device further includes a third wire-reinforced flexible hose 73, which is disposed between the third extraction pipeline 33 and the collector 60, so that the third extraction pipeline 33 is connected to the collector 60 through the third wire-reinforced flexible hose 73. Alternatively, the extraction device may also include a first steel wire reinforced hose 71, a second steel wire reinforced hose 72, and a third steel wire reinforced hose 73. With this arrangement, the collector 60 can be connected to the three extraction pipelines respectively using the three steel wire reinforced hoses located outside the protective cavity 22. This makes it easier to connect and disconnect the pipelines, and allows for flexible movement of the extraction device's location when needed. Furthermore, the structure of the steel wire reinforced hoses avoids the disadvantages of all-steel pipes being prone to corrosion and plastic pipes being prone to cracking under stress, thus improving the service life and reliability of the pipelines.

[0050] In this embodiment, the spill containment component 20 is made of flexible fabric. This design enhances the flexibility of the spill containment component 20, and the flexible fabric also makes the spill containment component 20 easier to store, facilitates its movement and installation, and provides the possibility of reinstallation. At the same time, the use of flexible fabric can also reduce the manufacturing cost of the extraction device.

[0051] Specifically, the anti-overflow component 20 is provided with a first connecting port, through which the first extraction pipe 31 extends out of the protective cavity 22. The extraction device also includes a first fastening sleeve 81, the shape of which is adapted to the shape of the first extraction pipe 31. The first fastening sleeve 81 is fitted onto the first extraction pipe 31, and the portion of the anti-overflow component 20 located at the first connecting port is limited between the first fastening sleeve 81 and the first extraction pipe 31, thereby sealing the first connecting port. Alternatively, the anti-overflow component 20 is provided with a second connecting port, through which the second extraction pipe 32 extends out of the protective cavity 22. The extraction device also includes a second fastening sleeve 82. The shape of the second fastening sleeve 82 is adapted to the shape of the second extraction pipe 32. The second fastening sleeve 82 is fitted onto the second extraction pipe 32, and the portion of the anti-overflow member 20 located at the second connection port is limited between the second fastening sleeve 82 and the second extraction pipe 32, so as to seal the second connection port through the second fastening sleeve 82. Alternatively, the extraction device may also include both the first fastening sleeve 81 and the second fastening sleeve 82. With this arrangement, the sealing effect at the point where the extraction pipe extends out of the anti-overflow member 20 can be improved, preventing gas from overflowing from the anti-overflow member 20 at the point where the extraction pipe extends out, and further preventing harmful gases from entering the working surface.

[0052] Specifically, the first fastening sleeve 81 and the second fastening sleeve 82 can be sealing structures such as pipe sealing rings or flanges, or the structure of the first fastening sleeve 81 and the second fastening sleeve 82, such as iron wire, can be used to fasten the fabric of the anti-overflow component 20 to the first drainage pipe 31 and the second drainage pipe 32 respectively.

[0053] In this embodiment, the protective cavity 22 is a funnel-shaped cavity.

[0054] Specifically, in this embodiment, the anti-overflow component 20 is mainly made of materials such as ventilation duct cloth and steel wire rope. The protective opening 21 of the anti-overflow component 20 is 5m long and 4m wide. Before blasting, the entire extraction device is fixed under the blast hole 10 and covers a range of 5m before and after the blast hole 10. The extraction device is tightly connected to the top and side walls of the roadway, and the gas drainage system (corresponding to the extraction component 40) is used to extract the harmful gases generated by the advanced cutting hole blasting to the maximum extent.

[0055] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects: A drainage device with an anti-overflow component 20 and a drainage pipeline is installed below the blast hole. The anti-overflow component 20 prevents gas from overflowing, and the drainage pipeline extracts the gas. The drainage device has a convenient and reasonable structural layout and installation, good performance, safety and reliability, strong practicality, and is reusable. It efficiently completes the treatment of carbon monoxide after blasting, significantly reducing the emission of carbon monoxide in the return airway and other working roadways, providing effective protection for mine blasting management. Meanwhile, the anti-overflow component 20, made of flexible fabric, is lightweight, easy to move, easy to process and install, reusable, and has low material costs, saving costs. Because the drainage device is simple to manufacture, low in cost, and has excellent practical effects, it can efficiently complete the treatment of carbon monoxide after blasting, while allowing the user to process and use it themselves, saving a considerable amount of money.

[0056] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0057] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0058] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0059] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0060] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0061] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pumping device, characterized in that, The extraction device is used to extract the gas generated by the blasting in the tunnel. The tunnel wall is provided with blasting holes (10), which are connected to the tunnel. The extraction device includes: An overflow prevention component (20) is installed in the roadway. The overflow prevention component (20) is connected to the wall of the roadway. The overflow prevention component (20) has a protective opening (21) and a protective cavity (22) communicating with the protective opening (21). The protective opening (21) surrounds the periphery of the blast hole (10) so that the blast hole (10) communicates with the protective cavity (22) through the protective opening (21). The first drainage pipe (31) has one end connected to the rupture hole (10) and the other end passes through the anti-overflow member (20) and extends out of the protective cavity (22). The second drainage pipe (32) has one end connected to the protective cavity (22) and the other end passes through the anti-overflow member (20) and extends out of the protective cavity (22).

2. The extraction device according to claim 1, characterized in that, The extraction device also includes: A suction device (40) is disposed at the end of the rupture hole (10). The suction device (40) is used to generate a suction force to extract the gas at the rupture hole (10). The inlet of the suction device (40) is connected to the rupture hole (10), and the outlet of the suction device (40) is connected to one end of the first suction pipeline (31).

3. The extraction device according to claim 2, characterized in that, There are multiple blast holes (10), which are spaced apart at the top of the roadway, and each blast hole (10) is connected to the inlet of the extraction component (40); and / or, There are multiple second extraction pipes (32), and one end of each of the multiple second extraction pipes (32) is spaced apart inside the protective cavity (22).

4. The extraction device according to claim 1, characterized in that, The tunnel wall is also provided with drainage holes (50), which are spaced apart from the blasting holes (10). The pumping device further includes: The third drainage pipe (33) has one end connected to the drainage hole (50) and the other end passing through the anti-overflow member (20) and extending out of the protective cavity (22).

5. The extraction device according to claim 4, characterized in that, There are at least two drainage holes (50), and the at least two drainage holes (50) are respectively arranged on both sides of the blast hole (10). There are at least two third drainage pipes (33), and the at least two third drainage pipes (33) are arranged in a one-to-one correspondence with the at least two drainage holes (50). Each third drainage pipe (33) is connected to the corresponding blast hole (10).

6. The extraction device according to claim 4, characterized in that, The extraction device also includes: A collector (60) is installed in the tunnel. The collector (60) is located outside the protective cavity (22). The collector (60) has a collection pipe (61). The other end of the first drainage pipe (31), the other end of the second drainage pipe (32), and the other end of the third drainage pipe (33) are all connected to the collection pipe (61).

7. The extraction device according to claim 6, characterized in that, The extraction device also includes: A first wire mesh hose (71) is disposed between the first drain line (31) and the collector (60) so that the first drain line (31) is connected to the collector (60) via the first wire mesh hose (71); and / or, A second wire mesh hose (72) is disposed between the second drain line (32) and the manifold (60) so that the second drain line (32) is connected to the manifold (60) via the second wire mesh hose (72); and / or, A third steel wire skeleton hose (73) is disposed between the third drainage pipe (33) and the collector (60) so that the third drainage pipe (33) is connected to the collector (60) through the third steel wire skeleton hose (73).

8. The extraction device according to claim 1, characterized in that, The spill containment element (20) is made of flexible fabric.

9. The extraction device according to claim 8, characterized in that, The overflow prevention component (20) is provided with a first connecting port, through which the first drainage pipe (31) extends out of the protective cavity (22); the overflow prevention component (20) is provided with a second connecting port, through which the second drainage pipe (32) extends out of the protective cavity (22); the drainage device further includes: A first fastening sleeve (81), the shape of which is adapted to the shape of the first drain pipe (31), is fitted onto the first drain pipe (31), and the anti-overflow element (20) located at the first connection port is partially confined between the first fastening sleeve (81) and the first drain pipe (31) to seal the first connection port through the first fastening sleeve (81); and / or, The second fastening sleeve (82) is adapted to the shape of the second drain pipe (32). The second fastening sleeve (82) is fitted on the second drain pipe (32) and limits part of the anti-overflow member (20) located at the second connection port between the second fastening sleeve (82) and the second drain pipe (32) to seal the second connection port through the second fastening sleeve (82).

10. The extraction device according to claim 1, characterized in that, The protective cavity (22) is a funnel-shaped cavity.

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