Roof anchor cable hole drainage and gas extraction device for coal mine driving working face

Abstract

The invention belongs to the technical field of coal mining, and particularly discloses a coal mine driving face roof anchor cable hole drainage and gas extraction device. The coal mine driving face roof anchor cable hole drainage and gas extraction device comprises a collecting box, a gas extraction pipeline and a drainage pipeline, the collecting box is connected with a roadway roof, an opening is formed in the top of the collecting box, and the opening is opposite to a hole of the roadway roof; an inlet of the gas extraction pipeline is communicated with the collecting box, and an outlet of the gas extraction pipeline is connected with the gas extraction assembly so that gas in the collecting box can be extracted through the gas extraction assembly. And an inlet of the water drainage pipeline is communicated with the collection box so as to drain water in the collection box through the water drainage pipeline. The safety of the working environment of the driving face can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of coal mining, and in particular relates to a drainage and gas extraction device for an anchor hole on a roof of a coal mine excavation working face. Background Art

[0002] In mines with large coal seam gas deposits, when the roof anchor cables are installed during tunnel excavation, there is a possibility that the anchor cables will expose cracks in the roof or water and gas will gush out from the directional drilling holes, which can easily cause gas to exceed the limit in local areas of the tunnel, threatening the gas control work during coal mining and the safety of the mine. In addition, water will gush out from the tunnel roof, causing workers to be exposed to water while working. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, an embodiment of the present invention provides a drainage and gas extraction device for the top plate anchor hole of a coal mine excavation working face, which can improve the safety of the working environment of the excavation working face.

[0004] The coal mine excavation working face roof anchor hole drainage and gas extraction device of the embodiment of the present invention comprises: a collecting box, which is connected to the tunnel roof and has an opening on the top of the collecting box, and the opening is arranged opposite to the hole in the tunnel roof; a gas extraction pipeline, the inlet of the gas extraction pipeline is connected to the collecting box, and the outlet of the gas extraction pipeline is connected to the gas extraction component to extract the gas in the collecting box through the gas extraction component; a drainage pipeline, the inlet of the drainage pipeline is connected to the collecting box to discharge the water in the collecting box through the drainage pipeline.

[0005] It can be understood that by setting a collecting box on the tunnel roof corresponding to the hole on the tunnel roof, when gas or water gushes out of the hole, the gushing gas or water enters the collecting box through the opening on the top of the collecting box, and the gas extraction component can discharge the gas through the gas extraction pipeline, effectively reducing the situation of excessive gas outflow in the excavation working face, and the water gushing out of the hole can be discharged through the drainage pipeline to avoid the workers from being exposed to water during work, thereby improving the safety of the working environment of the excavation working face.

[0006] In this embodiment, the inlet of the gas extraction pipeline is located at the upper part of the collecting box, and the inlet of the drainage pipeline is located at the lower part of the collecting box.

[0007] In this embodiment, the cross section of the collection box gradually decreases from top to bottom.

[0008] In this embodiment, the drainage and gas extraction device for the anchor hole on the roof of the coal mine excavation working face also includes a first straight pipe, which is connected to the collecting box, and the inlet of the gas extraction pipeline is connected to the first straight pipe; and / or, the drainage and gas extraction device for the anchor hole on the roof of the coal mine excavation working face also includes a second straight pipe, which is connected to the collecting box, and the inlet of the drainage pipeline is connected to the second straight pipe.

[0009] In this embodiment, when the collecting box is connected to the first straight-through pipe, the outer diameter of the outlet end of the first straight-through pipe matches the inner diameter of the inlet end of the gas extraction pipeline, so that the outlet end of the first straight-through pipe can be inserted into the inlet end of the gas extraction pipeline; when the collecting box is connected to the second straight-through pipe, the outer diameter of the outlet end of the second straight-through pipe matches the inner diameter of the inlet end of the drainage pipeline, so that the outlet end of the second straight-through pipe can be inserted into the inlet end of the drainage pipeline.

[0010] In this embodiment, the outlet end of the drainage pipeline is located on a side of the tunnel floor adjacent to the tunnel wall.

[0011] In this embodiment, the collection box is detachably connected to the tunnel roof.

[0012] In this embodiment, the coal mine excavation working face roof anchor hole drainage and gas extraction device also includes an installation component, which includes: a first connecting component, the top of which is connected to the tunnel roof; a second connecting component, the bottom end of which is hinged to the top of the first connecting component, and the bottom end of the second connecting component is connected to the collection box.

[0013] In this embodiment, the first connecting component includes: a connecting seat, the connecting seat is connected to the tunnel roof; a sphere, the sphere is connected to the connecting seat, and the second connecting component has a spherical cavity, and the sphere is located in the spherical cavity.

[0014] In this embodiment, the second connecting component includes: a mounting seat, the mounting seat is formed with the spherical cavity, and the mounting seat is connected to the collection box. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a coal mine excavation working face roof anchor hole drainage and gas extraction device according to an embodiment of the present invention.

[0016] Figure 2 The installation assembly of the embodiment of the present invention explodes Figure 1 .

[0017] Figure 3 The installation assembly of the embodiment of the present invention explodes Figure 2 .

[0018] Reference numerals:

[0019] 100, tunnel roof; 101, anchor cable hole;

[0020] 1. Collection box; 2. Gas extraction pipeline; 3. Drainage pipeline; 4. First straight pipe; 5. Second straight pipe; 6. Installation assembly; 61. First connecting component; 611. Connecting seat; 612. Ball; 62. Second connecting component; 621. Mounting seat; 622. Connecting screw; 623. Connecting nut. DETAILED DESCRIPTION

[0021] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0022] In this embodiment, if Figure 1 As shown, the drainage and gas extraction device for the anchor hole of the roof of the coal mine excavation working face includes a collection box 1, a gas extraction pipeline 2 and a drainage pipeline 3. The collection box 1 is connected to the tunnel roof 100, and the top of the collection box 1 has an opening, which is arranged opposite to the hole of the tunnel roof 100; the inlet of the gas extraction pipeline 2 is connected to the collection box 1, and the outlet of the gas extraction pipeline 2 is connected to the gas extraction component to extract the gas in the collection box 1 through the gas extraction component. The inlet of the drainage pipeline 3 is connected to the collection box 1 to discharge the water in the collection box 1 through the drainage pipeline 3.

[0023] For example, the gas extraction pipeline 2 can be set as a hose, and the drainage pipeline 3 can also be set as a hose, which can facilitate the routing of the gas extraction pipeline 2 and the drainage pipeline 3 in the tunnel.

[0024] Specifically, the gas extraction assembly includes an extraction pump, which is connected to the gas extraction pipeline 2, and provides negative pressure through the extraction pump to extract the gas gushing out of the hole through the gas extraction pipeline 2. Other components and configurations of the gas extraction assembly are conventional prior art and will not be described in detail here.

[0025] It can be understood that by setting a collecting box 1 on the tunnel roof 100 corresponding to the hole on the tunnel roof 100, when gas or water gushes out of the hole, the gushing gas or water enters the collecting box 1 through the opening at the top of the collecting box 1, and the gas extraction component can discharge the gas through the gas extraction pipeline 2, thereby effectively reducing the situation of excessive gas outflow in the excavation working face. The water gushing out of the hole can be discharged through the drainage pipeline 3, thereby avoiding the workers from being drenched in water during work, thereby improving the safety of the working environment of the excavation working face.

[0026] In this embodiment, if Figure 1 As shown, the inlet of the gas extraction pipeline 2 is located at the upper part of the collecting box 1; the inlet of the drainage pipeline 3 is located at the lower part of the collecting box 1.

[0027] Specifically, the inlet of the gas extraction pipeline 2 can be set at the top of the collection box 1, or at the upper part of the side wall of the collection box 1. The position of the inlet of the gas extraction pipeline 2 in the collection box 1 can be set according to actual installation needs and is not limited here. The inlet of the drainage pipeline 3 can be set at the bottom of the collection box 1, or at the lower part of the side wall of the collection box 1.

[0028] It is understandable that the inlet of the gas extraction pipeline 2 is arranged at the upper part of the collection box 1, which can prevent the water at the bottom of the collection box 1 from entering the gas extraction pipeline 2 and affecting the gas extraction. The inlet of the drainage pipeline 3 is arranged at the lower part of the collection box 1, so that the water in the collection box 1 can flow into the drainage pipeline 3 and flow out of the drainage pipeline 3 by gravity.

[0029] In this embodiment, if Figure 1 As shown, the cross section of the collecting box 1 gradually decreases from top to bottom.

[0030] For example, the collection box 1 is in the shape of a truncated pyramid or a truncated cone.

[0031] It can be understood that setting the cross section of the collection box 1 to gradually decrease from top to bottom can facilitate the collection of water in the collection box 1 and facilitate the discharge of water in the collection box 1.

[0032] In this embodiment, if Figure 1 As shown, the drainage and gas extraction device for the anchor hole of the roof of the coal mine excavation working face also includes a first straight pipe 4, the first straight pipe 4 is connected to the collecting box 1, and the inlet of the gas extraction pipeline 2 is connected to the first straight pipe 4.

[0033] Specifically, the first straight pipe 4 can be welded to the collection box 1, so that the connection sealing effect between the first straight pipe 4 and the collection box 1 is better and stronger, and no additional fasteners are required for connection, thereby simplifying the overall structure.

[0034] It is understandable that by arranging the first straight pipe 4 on the collecting box 1, the collecting box 1 is connected to the gas extraction pipeline 2 through the first straight pipe 4, which can facilitate the installation of the gas extraction pipeline 2.

[0035] In this embodiment, if Figure 1 As shown, the drainage and gas extraction device for the anchor hole of the roof of the coal mine excavation working face also includes a second straight pipe, the second straight pipe 5 is connected to the collecting box 1, and the inlet of the drainage pipe 3 is connected to the second straight pipe.

[0036] Specifically, the second straight-through pipe can be welded to the collection box 1, so that the connection sealing effect between the second straight-through pipe and the collection box 1 is better and the strength is higher, and no additional fasteners are required for connection, thereby simplifying the overall structure.

[0037] It can be understood that by arranging a second straight-through pipe on the collection box 1, the collection box 1 is connected to the drainage pipeline through the second straight-through pipe, which can facilitate the installation of the drainage pipeline 3.

[0038] In this embodiment, when the collecting box 1 is connected to the first straight pipe 4, the outer diameter of the outlet end of the first straight pipe 4 matches the inner diameter of the inlet end of the gas extraction pipeline 2, so that the outlet end of the first straight pipe 4 can be inserted into the inlet end of the gas extraction pipeline 2.

[0039] For example, when the outer diameter of the first straight pipe 4 is 50 mm, the outer diameter of the gas extraction pipeline 2 can be set to 75 mm, and the inner diameter of the gas extraction pipeline 2 is set to 50 mm.

[0040] It can be understood that the outer diameter of the outlet end of the first straight pipe 4 is set to match the inner diameter of the inlet end of the gas extraction pipeline 2, so that the first straight pipe 4 can be inserted into the inlet end of the gas extraction pipeline 2, thereby facilitating the installation of the gas extraction pipeline 2. The inlet end of the gas extraction pipeline 2 can also be supported to a certain extent by the end of the first supporting pipeline, which is conducive to the stable installation of the gas extraction pipeline 2.

[0041] When the collection box 1 is connected to a second straight-through pipe, the outer diameter of the outlet end of the second straight-through pipe matches the inner diameter of the inlet end of the drainage pipe 3, so that the outlet end of the second straight-through pipe is inserted into the inlet end of the drainage pipe 3;

[0042] For example, when the outer diameter of the second straight pipe is 50 mm, the outer diameter of the drainage pipe 3 can be set to 75 mm, and the inner diameter of the drainage pipe 3 is set to 50 mm.

[0043] It can be understood that the outer diameter of the outlet end of the second straight-through pipe is set to match the inner diameter of the inlet end of the drainage pipe 3, so that the second straight-through pipe can be inserted into the inlet end of the drainage pipe 3, thereby facilitating the installation of the drainage pipe 3. The inlet end of the drainage pipe 3 can also be supported by the end of the second straight-through pipe, which is conducive to the stable installation of the drainage pipe 3.

[0044] In this embodiment, the outlet end of the drainage pipe 3 is located on a side of the tunnel floor adjacent to the tunnel wall.

[0045] It can be understood that by arranging the outlet end of the drainage pipe 3 on the side of the tunnel floor adjacent to the tunnel wall, the water in the drainage pipe 3 can be discharged along the tunnel wall, reducing the impact of drainage on the work of the staff.

[0046] In this embodiment, the collection box 1 is detachably connected to the tunnel roof 100 .

[0047] It can be understood that the collecting box 1 is detachably connected to the tunnel roof 100, so that the collecting box 1 can be removed from the tunnel roof 100 when it is not needed, thereby facilitating the reuse of the anchor hole drainage and gas extraction device in the roof of the coal mine excavation working face, which is beneficial to saving resources and reducing costs.

[0048] In this embodiment, if Figures 1 to 3 As shown, the coal mine excavation working face roof anchor hole drainage and gas extraction device also includes an installation component 6, the installation component 6 includes a first connecting component 61 and a second connecting component 62, the top end of the first connecting component 61 is connected to the tunnel roof 100; the bottom end of the second connecting component 62 is hinged to the top end of the first connecting component 61, and the bottom end of the second connecting component 62 is connected to the collecting box 1.

[0049] The installation component 6 in this embodiment includes a first connecting component 61 and a second connecting component 62. The first connecting component 61 is connected to the tunnel roof 100, and the second connecting component 62 is connected to the collecting box 1. The first connecting component 61 and the second connecting component 62 are hinged, so that the second connecting component 62 can be deflected relative to the first connecting component 61. When the tunnel roof 100 is uneven, the collecting box 1 can also be vertically arranged by the second connecting component 62. There is no need to select or process the installation position, which facilitates the installation of the collecting box 1.

[0050] In this embodiment, if Figures 1 to 3 As shown, the first connecting component 61 includes a connecting seat 611 and a sphere 612. The connecting seat 611 is connected to the tunnel roof 100; the sphere 612 is connected to the connecting seat 611, and the second connecting component 62 has a spherical cavity, and the sphere 612 is located in the spherical cavity.

[0051] Specifically, the connection seat 611 is provided with a connection hole, and the connection seat 611 can be connected to the tunnel roof 100 by passing through the expansion bolt thereon. The number of connection holes on the connection seat 611 can be set as needed and is not limited here. The sphere 612 and the connection seat 611 are fixedly connected, for example, the sphere 612 and the connection seat 611 can be welded, which can simplify the structure of the first connection component 61 and improve the stability of the connection between the sphere 612 and the connection seat 611.

[0052] In this embodiment, the connection seat 611 is provided to facilitate the connection between the first connecting component 61 and the tunnel roof 100. Through the cooperation of the spherical body 612 and the spherical cavity of the second connecting component 62, the second connecting component 62 can achieve three degrees of freedom of rotation relative to the first connecting component 61, that is, the sphere 612 can rotate around any axis in the spherical cavity.

[0053] In this embodiment, if Figure 2 and Figure 3 As shown, the second connecting component 62 includes a mounting seat 621 , a spherical cavity is formed in the mounting seat 621 , and the mounting seat 621 is connected to the collection box 1 .

[0054] Specifically, the mounting seat 621 includes a seat body and a gland, the gland and the seat body are detachably connected, the gland and the seat body are combined to form a spherical cavity, after the gland is removed from the seat body, the sphere 612 can be placed in the seat body or removed from the seat body, and when the gland is connected to the seat body, the sphere 612 can be limited in the spherical cavity surrounded by the gland and the seat body. For example, the mounting seat 621 is a cube, and the gland is a block formed by cutting off one side of the upper part of the cube. The gland and the seat body can be detachably connected by bolts. The specific connection method of the gland and the seat body can be selected by technicians in this field as needed, and is not limited here.

[0055] Furthermore, if Figure 2 and Figure 3 As shown, the second connecting component 62 further includes a connecting screw 622 and a connecting nut 623. One end of the connecting screw 622 is connected to the mounting seat 621. Two connecting nuts 623 are provided, and both connecting nuts 623 are threadedly connected to the connecting screw 622. A connecting foot can be provided on the collection box 1, and the two connecting nuts 623 are clamped on the upper and lower sides of the connecting foot, so as to connect the collection box 1 to the mounting assembly 6.

[0056] In this embodiment, by providing a mounting seat 621 and forming a spherical cavity in the mounting seat 621 , the connection between the second connecting component 62 and the first connecting component 61 can be facilitated.

[0057] After installing the coal mine excavation working face roof anchor hole drainage and gas extraction device in this embodiment on the tunnel roof 100, when gas or water gushes out of the hole, the gushing gas or water enters the collecting box 1 through the opening at the top of the collecting box 1, and the gas extraction component can discharge the gas entering the collecting box 1 through the gas extraction pipeline 2, effectively reducing the situation of excessive gas outflow in the excavation working face. The water entering the collecting box can be discharged through the drainage pipeline 3, avoiding the workers from being drenched in water during work, thereby improving the safety of the working environment of the excavation working face. In addition, the collecting box 1 is connected to the tunnel roof 100 by setting up the installation component 6. The first connecting part 61 and the second connecting part 62 of the installation component 6 cooperate with the sphere 612 and the spherical cavity so that the second connecting part 62 can rotate around any axis relative to the first connecting part 61. The first connecting part 61 is connected to the tunnel roof 100, and the collecting box 1 is connected to the second connecting part 62, so that the collecting box 1 can rotate relative to the first connecting part 61. Further, when the tunnel roof 100 is uneven, the collecting box 1 can also maintain a vertical installation state, which is convenient for the installation of the collecting box 1.

[0058] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0059] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0060] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0062] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0063] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A drainage and gas extraction device for the anchor hole of the roof of a coal mine excavation working face, characterized in that: include: A collection box, the collection box is connected to the tunnel roof, and the top of the collection box has an opening, and the opening is arranged opposite to the hole in the tunnel roof; A gas extraction pipeline, wherein the inlet of the gas extraction pipeline is connected to the collection box, and the outlet of the gas extraction pipeline is connected to a gas extraction component to extract the gas in the collection box through the gas extraction component; A drainage pipeline, the inlet of which is communicated with the collection box so as to discharge the water in the collection box through the drainage pipeline.

2. The coal mine excavation working face roof anchor hole drainage and gas extraction device according to claim 1, characterized in that: The inlet of the gas extraction pipeline is located at the upper part of the collecting box, and the inlet of the drainage pipeline is located at the lower part of the collecting box.

3. The coal mine excavation working face roof anchor hole drainage and gas extraction device according to claim 1, characterized in that: The cross section of the collecting box gradually decreases from top to bottom.

4. The device for draining and extracting gas from the anchor hole on the roof of a coal mine excavation working face according to claim 1, characterized in that: It also includes a first straight pipe, the first straight pipe is connected to the collection box, and the inlet of the gas extraction pipeline is connected to the first straight pipe; And / or, the coal mine excavation working face roof anchor hole drainage and gas extraction device also includes a second straight pipe, the second straight pipe is connected to the collecting box, and the inlet of the drainage pipe is connected to the second straight pipe.

5. The device for draining and extracting gas from the anchor hole on the roof of a coal mine excavation working face according to claim 4, characterized in that: When the collecting box is connected with the first straight pipe, the outer diameter of the outlet end of the first straight pipe matches the inner diameter of the inlet end of the gas extraction pipeline, so that the outlet end of the first straight pipe is inserted into the inlet end of the gas extraction pipeline; When the collecting box is connected to the second straight pipe, the outer diameter of the outlet end of the second straight pipe matches the inner diameter of the inlet end of the drainage pipeline, so that the outlet end of the second straight pipe can be inserted into the inlet end of the drainage pipeline.

6. The device for draining and extracting gas from the anchor hole on the roof of a coal mine excavation working face according to claim 1, characterized in that: The outlet end of the drainage pipeline is located on a side of the tunnel floor adjacent to the tunnel wall.

7. The device for draining and extracting gas from anchor holes on the roof of a coal mine excavation working face according to claim 1, characterized in that: The collecting box is detachably connected to the tunnel roof.

8. The drainage and gas extraction device for the anchor hole of the roof of a coal mine excavation working face according to any one of claims 1 to 7, characterized in that: Also included is an installation component, the installation component comprising: A first connecting member, the top end of which is connected to the tunnel roof; A second connecting component, wherein the bottom end of the second connecting component is hinged to the top end of the first connecting component, and the bottom end of the second connecting component is connected to the collection box.

9. The device for draining water and extracting gas from anchor holes on the roof of a coal mine excavation working face according to claim 8, characterized in that: The first connecting component comprises: A connecting seat, the connecting seat being connected to the tunnel roof; A sphere is connected to the connecting seat, and the second connecting component has a spherical cavity, and the sphere is located in the spherical cavity.

10. The device for draining water and extracting gas from anchor holes on the roof of a coal mine excavation working face according to claim 9, characterized in that: The second connecting component comprises: A mounting seat is formed with the spherical cavity and is connected to the collection box.

Images