Leaking stoppage device for roadway corner

Abstract

The utility model provides a leaking stoppage device for a roadway corner, which comprises a wind blocking assembly, the wind blocking assembly comprises at least two wind blocking plates and a filling layer, the at least two wind blocking plates are vertically arranged and extend along the length direction of a working surface, and the filling layer is arranged on the wind blocking plates. The at least two wind shields are arranged at intervals in the width direction of the working face, and a filling layer is arranged at the interval between the at least two wind shields. By means of the technical scheme, the problems that in the related technology, the wind shielding effect of a wind shielding curtain is poor, a corner is formed between the working face wall and the wind shielding curtain of the goaf, the wind shielding curtain shakes or is damaged, then the goaf is communicated with the working face, airflow of the working face flows into the goaf, and the working face is damaged can be solved. And the residual coal in the goaf can be spontaneously combusted.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine mining, and particularly relates to a plugging device for the corner of a roadway. Background Art

[0002] With the reform of coal mine mining technology and the application of pillarless technologies such as gob-side entry retaining and gob-side drivage along the goaf, the air leakage rate of coal roadways has been greatly increased, bringing great difficulties to the management of spontaneous combustion coal seams. Therefore, the work of plugging air leakage in coal roadways is very important.

[0003] In the related art, a windbreak curtain is arranged between the gob and the working face, so as to prevent the air flow between the working faces from flowing into the gob. However, the windbreak effect of the windbreak curtain in the related art is not good. At the corner formed between the wall of the working face and the windbreak curtain in the gob, the windbreak curtain will shake or be damaged, resulting in the connection between the gob and the working face, so that the air flow of the working face will flow into the gob, and the remaining coal in the gob may spontaneously combust. Summary of the Utility Model

[0004] The utility model provides a plugging device for the corner of a roadway to solve the problems in the related art that the windbreak effect of the windbreak curtain is not good, at the corner formed between the wall of the working face and the windbreak curtain in the gob, the windbreak curtain will shake or be damaged, resulting in the connection between the gob and the working face, so that the air flow of the working face will flow into the gob, and the remaining coal in the gob may spontaneously combust.

[0005] The utility model provides a plugging device for the corner of a roadway. The plugging device for the corner of a roadway includes: a windbreak assembly, the windbreak assembly includes at least two windbreak plates and a filling layer. The at least two windbreak plates are arranged vertically and all extend along the length direction of the working face. The at least two windbreak plates are arranged at intervals along the width direction of the working face. A filling layer is arranged in the interval between the at least two windbreak plates.

[0006] Further, the first windbreak plate is arranged close to the windbreak curtain. The filling layer in the interval between the first windbreak plate and the second windbreak plate is a first filling layer. The first filling layer includes a first filling sub-layer and a second filling sub-layer. The first filling sub-layer and the second filling sub-layer are stacked in the direction from the first windbreak plate towards the second windbreak plate. The first side of the first filling sub-layer is connected to the first windbreak plate. The second side of the first filling sub-layer is connected to the first side of the second filling sub-layer. The second side of the second filling sub-layer is connected to the second windbreak plate.

[0007] Further, the first filling sub-layer is a coarse sand layer; and / or, the second filling sub-layer is a resin layer.

[0008] Further, the windshield assembly includes three windshields. The filling layer within the interval between the second windshield and the third windshield is the second filling layer, and the second filling layer is made of a flame-retardant material.

[0009] Further, the windshield includes a wire mesh and a wind tube cloth, and the wind tube cloth covers the wire mesh.

[0010] Further, the wire mesh includes a frame and a plurality of wire bodies. The plurality of wire bodies are arranged crosswise on the frame. Both the top end and the bottom end of the frame are provided with roadway connection holes. The plugging device for the roadway corner also includes a plurality of fasteners, and the plurality of fasteners are respectively inserted through the plurality of roadway connection holes.

[0011] Further, the plugging device for the roadway corner also includes a storage box and a connecting pipe. The storage box has a storage cavity for accommodating the filling material. The first end of the connecting pipe is connected to the storage cavity, and the second end of the connecting pipe can extend into the interval between two adjacent windshields to inject the filling material into the interval between two adjacent windshields to form a filling layer.

[0012] Further, the plugging device for the roadway corner also includes a flow meter for detecting the flow rate of the filling material, and the flow meter is arranged on the connecting pipe.

[0013] Further, the plugging device for the roadway corner also includes a grouting pump. The connecting pipe includes a first grouting pipe and a second grouting pipe. The first end of the first grouting pipe is connected to the storage cavity, the second end of the first grouting pipe is connected to the water inlet of the grouting pump, the first end of the second grouting pipe is connected to the water outlet of the grouting pump, the second end of the second grouting pipe can extend into the interval between two adjacent windshields, and the flow meter is arranged on the first grouting pipeline.

[0014] Further, the plugging device for the roadway corner also includes a housing. The grouting pump and the flow meter are both arranged in the housing, and the first grouting pipe and the second grouting pipe both pass through the housing.

[0015] Applying the technical solution of the present utility model, the plugging device for the roadway corner includes a wind-blocking assembly. The wind-blocking assembly includes at least two wind-blocking plates and a filling layer. The at least two wind-blocking plates are arranged vertically and can all extend along the length direction of the working face. The at least two wind-blocking plates are spaced apart along the width direction of the working face. In this way, the at least two wind-blocking plates can be arranged in the roadway, and a filling layer is arranged between the at least two wind-blocking plates. The wind-blocking plates are arranged close to the wind-blocking curtain. The at least two wind-blocking plates and the filling layer form the wind-blocking assembly. In this way, it can be ensured that the wind-blocking plates play a fixing role on the filling layer. After the at least two wind-blocking plates are spaced apart along the width direction of the working face, a filling layer is arranged in the interval between the at least two wind-blocking plates. The filling layer can enhance the wind-blocking effect of the wind-blocking assembly, prevent the wind blown into the working face from entering the gob area, and avoid the remaining coal in the gob area from being prone to spontaneous combustion after contacting more air. Moreover, the filling layer can ensure the reduction of the gap between the at least two wind-blocking plates, prevent the wind from passing through the gap between the at least two wind-blocking plates and entering the gob area, and can also play a flame-retardant role, thus avoiding the damage of the wind-blocking plates due to too high temperature and being unable to play the wind-blocking role, and improving the practicability and structural reliability of the plugging device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The schematic diagrams in the specification forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0017] Figure 1 shows the structural schematic diagram of the plugging device for the roadway corner provided by the embodiment of the present utility model;

[0018] Figure 2 shows the schematic diagram of the gob area and the working face in the roadway provided by the embodiment of the present utility model.

[0019] Among them, the above-mentioned drawings include the following reference numerals:

[0020] 10, wind-blocking assembly; 11, wind-blocking plate; 111, wire mesh; 112, air duct cloth; 12, filling layer; 121, first filling layer; 122, second filling layer;

[0021] 21, storage box; 22, connecting pipe; 221, first grouting pipe; 222, second grouting pipe; 23, flow meter; 24, grouting pump; 25, outer shell;

[0022] 31, gob area; 32, working face; 33, wind-blocking curtain. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The description of at least one exemplary embodiment below is actually only illustrative and in no way constitutes any limitation to the present invention and its application or use. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0024] As Figure 1 and Figure 2 shown, the embodiment of the present invention provides a plugging device for the corner of a roadway, which includes a wind-blocking assembly 10. The wind-blocking assembly 10 includes at least two wind-blocking plates 11 and a filling layer 12. The at least two wind-blocking plates 11 are arranged vertically and all extend along the length direction of the working face. The at least two wind-blocking plates 11 are spaced apart along the width direction of the working face, and a filling layer 12 is arranged in the space between the at least two wind-blocking plates 11.

[0025] Applying the plugging device for the corner of a roadway provided in this embodiment, the plugging device for the corner of a roadway includes a wind-blocking assembly 10. The wind-blocking assembly 10 includes at least two wind-blocking plates 11 and a filling layer 12. The at least two wind-blocking plates 11 are arranged vertically and can all extend along the length direction of the working face 32. The at least two wind-blocking plates 11 are spaced apart along the width direction of the working face 32. In this way, the at least two wind-blocking plates 11 can be arranged in the roadway, and a filling layer 12 is arranged between the at least two wind-blocking plates 11. The wind-blocking plates 11 are arranged close to the wind curtain 33. The at least two wind-blocking plates 11 and the filling layer 12 form the wind-blocking assembly 10. In this way, it can be ensured that the wind-blocking plates 11 play a fixing role on the filling layer 12. After the at least two wind-blocking plates 11 are spaced apart along the width direction of the working face 32, the filling layer 12 is arranged in the space between the at least two wind-blocking plates 11. The filling layer 12 can enhance the wind-blocking effect of the wind-blocking assembly 10, avoid the wind blown into the working face 32 from entering the goaf 31, so as to avoid the remaining coal in the goaf 31 from being prone to spontaneous combustion after contacting more air. And the filling layer 12 can ensure reducing the gap between the at least two wind-blocking plates 11, avoid the wind from passing through the gap between the at least two wind-blocking plates 11 and entering the goaf 31, and can also play a flame-retardant role, so as to avoid the wind-blocking plates 11 being damaged due to too high temperature and unable to play a wind-blocking role, and improve the practicability and structural reliability of the plugging device.

[0026] As Figure 1 and Figure 2As shown, the first wind baffle 11 is arranged close to the wind curtain 33. The filling layer 12 within the interval between the first wind baffle 11 and the second wind baffle 11 is the first filling layer 121. The first filling layer 121 includes a first filling sub-layer and a second filling sub-layer. The first filling sub-layer and the second filling sub-layer are stacked in the direction from the first wind baffle 11 towards the second wind baffle 11. The first side of the first filling sub-layer is connected to the first wind baffle 11, the second side of the first filling sub-layer is connected to the first side of the second filling sub-layer, and the second side of the second filling sub-layer is connected to the second wind baffle 11. With the above structure, the first wind baffle 11 is arranged close to the wind curtain 33, and the filling layer 12 within the interval between the first wind baffle 11 and the second wind baffle 11 forms the first filling layer 121. The first filling layer 121 can fill the interval between the two wind baffles 11, so that the first wind baffle 11, the second wind baffle 11 and the first filling layer 121 form a leak-proof wall, which can prevent the wind blown into the working face 32 from blowing into the gob 31. Moreover, the first filling layer 121 can fill the gap between the first and the second wind baffles 11, playing a role in blocking wind for the gob, avoiding the wind from blowing into the gob 31 through the wind curtain 33, and enhancing the structural strength of the wind baffle assembly 10. Additionally, by setting the first filling sub-layer and the second filling sub-layer, the first filling sub-layer is connected to the first wind baffle 11, which can play a role in blocking wind. And the second filling sub-layer is respectively connected to the first filling sub-layer and the second wind baffle 11. Under the action of the second filling sub-layer, the first filling sub-layer can be extruded, further reducing the voids of the first filling sub-layer and enhancing the leak-proof effect of the first filling layer 121.

[0027] In this embodiment, the first filling sub-layer is a coarse sand layer. By coating coarse sand from the bottom to the top on one side of the first wind baffle 11, the coarse sand layer forms the first filling sub-layer, which can ensure the structural strength of the wind baffle 11.

[0028] In this embodiment, the second filling sub-layer is a resin layer. By coating the resin layer from the bottom to the top on one side of the coarse sand layer, and since the resin layer is an expanding material, then coating the resin layer between the coarse sand layer and the second wind baffle 11 can make the resin layer expand and then extrude the coarse sand layer, ensuring that the coarse sand layer is compacted, reducing the pores of the coarse sand layer, and ensuring that the first filling layer 121 plays a leak-proof role.

[0029] Such as Figure 1 and Figure 2As shown in the figure, the windshield assembly 10 includes three windshield panels 11. The filling layer 12 within the interval between the second windshield panel 11 and the third windshield panel 11 is the second filling layer 122, and the second filling layer 122 is made of flame-retardant material. With the above structure, the filling layer 12 provided within the interval between the second windshield panel 11 and the third windshield panel 11 is the second filling layer 122, and the second filling layer 122 made of flame-retardant material can play a role in fire retardancy and improve the stability of the windshield assembly 10.

[0030] As Figure 1 shown in the figure, the windshield panel 11 includes a wire mesh 111 and a wind tube cloth 112, and the wind tube cloth 112 covers the wire mesh 111. With the above structure, covering the wire mesh 111 with the wind tube cloth 112 can ensure that the wind tube cloth 112 plays a role in wind shielding and is convenient for arranging the wind tube cloth 112 on the wire mesh 111.

[0031] In this embodiment, the wire mesh 111 includes a frame and a plurality of wire bodies. The plurality of wire bodies are arranged crosswise on the frame. Both the top end and the bottom end of the frame are provided with roadway connection holes. The plugging device for the roadway corner also includes a plurality of fasteners, and the plurality of fasteners are correspondingly inserted through the plurality of roadway connection holes. With the above structure, arranging the plurality of wire bodies crosswise can improve the structural strength of the wire mesh 111, and by inserting the fasteners through the roadway connection holes at the top end and the bottom end of the frame, it is convenient to fix the frame in the roadway and ensure the structural stability of the wire mesh 111.

[0032] As Figure 1 shown in the figure, the plugging device for the roadway corner also includes a storage box 21 and a connecting pipe 22. The storage box 21 has a storage cavity for accommodating the filling material. The first end of the connecting pipe 22 is communicated with the storage cavity, and the second end of the connecting pipe 22 can extend into the interval between two adjacent windshield panels 11 to inject the filling material into the interval between two adjacent windshield panels 11 to form the filling layer 12. With the above structure, by using the storage cavity in the storage box 21 to store the filling material, the filling material can be stored, and the first end of the connecting pipe 22 is communicated with the storage cavity, and the second end of the connecting pipe 22 can extend into the interval between two adjacent windshield panels 11, so as to inject the filling material in the storage cavity into the interval between two adjacent windshield panels 11 through the connecting pipe 22, thereby forming the filling layer 12.

[0033] It should be noted that multiple cavities are provided in the storage cavity, which facilitates the separate storage of coarse sand, resin, and flame retardant materials. When it is necessary to use coarse sand for coating, the first end of the connecting pipe 22 is connected to the cavity storing coarse sand. When it is necessary to use resin for coating, the first end of the connecting pipe 22 is connected to the cavity storing resin. When it is necessary to use flame retardant materials for coating, the first end of the connecting pipe 22 is connected to the cavity storing flame retardant materials.

[0034] As Figure 1 shown, the plugging device for the corner of the roadway also includes a flow meter 23 for detecting the flow rate of the filling material. The flow meter 23 is arranged on the connecting pipe 22. With the above structure, by arranging the flow meter 23 on the connecting pipe 22, the flow rate of the filling material flowing in the connecting pipe 22 can be detected, ensuring that the filling material can be filled between two adjacent windshields 11 to form a filling layer 12.

[0035] As Figure 1 shown, the plugging device for the corner of the roadway also includes a grouting pump 24. The connecting pipe 22 includes a first grouting pipe 221 and a second grouting pipe 222. The first end of the first grouting pipe 221 is connected to the storage cavity, the second end of the first grouting pipe 221 is connected to the water inlet of the grouting pump 24, the first end of the second grouting pipe 222 is connected to the water outlet of the grouting pump 24, and the second end of the second grouting pipe 222 can extend into the space between two adjacent windshields 11. The flow meter 23 is arranged on the first grouting pipe 221. With the above structure, by connecting the first end of the first grouting pipe 221 to the storage cavity, the second end of the first grouting pipe 221 to the water inlet of the grouting pump 24, the first end of the second grouting pipe 222 to the water outlet of the grouting pump 24, and the second end of the second grouting pipe 222 can extend into the space between two adjacent windshields 11, it can ensure that the filling material in the storage cavity is filled between two adjacent windshields 11 to form a filling layer 12 under the action of the grouting pump 24.

[0036] As Figure 1 shown, the plugging device for the corner of the roadway also includes a housing 25. The grouting pump 24 and the flow meter 23 are both arranged in the housing 25. The first grouting pipe 221 and the second grouting pipe 222 both pass through the housing 25. With the above structure, the housing 25 can protect the grouting pump 24 and the flow meter 23.

[0037] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0038] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods, and devices should be regarded as part of the specification. In all the examples shown and discussed herein, any specific values should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, further discussion thereof is not required in subsequent drawings.

[0039] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom" are generally based on the orientation or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Without contrary instructions, these orientation words 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. Therefore, they should not be construed as limiting the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0040] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" etc. may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both orientations of "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding explanations for the spatial relative descriptions used herein will be made accordingly.

[0041] In addition, it should be noted that the use of terms such as "first", "second" etc. to define components is only for the convenience of differentiating the corresponding components. Without further statement, the above terms have no special meanings, and thus should not be construed as limiting the protection scope of the present utility model.

[0042] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A leak plugging device for tunnel corners, characterized in that: The leak plugging device for tunnel corners comprises: a wind shield assembly (10), the wind shield assembly (10) comprising at least two wind shields (11) and a filling layer (12), at least two of the wind shields (11) are arranged vertically and both extend along the length direction of the working surface (32), at least two of the wind shields (11) are arranged at intervals along the width direction of the working surface (32), and the filling layer (12) is arranged in the interval between at least two of the wind shields (11).

2. The leak plugging device for tunnel corners according to claim 1, characterized in that: The first windshield (11) is arranged near the windshield curtain, and the filling layer (12) in the interval between the first windshield (11) and the second windshield (11) is a first filling layer (121), the first filling layer (121) includes a first filling sublayer and a second filling sublayer, the first filling sublayer and the second filling sublayer are stacked in a direction from the first windshield (11) toward the second windshield (11), a first side of the first filling sublayer is connected to the first windshield (11), a second side of the first filling sublayer is connected to the first side of the second filling sublayer, and a second side of the second filling sublayer is connected to the second windshield (11).

3. The leak plugging device for tunnel corners according to claim 2, characterized in that: The first filling sublayer is a coarse sand layer; and / or, The second filling sub-layer is a resin layer.

4. The leak plugging device for tunnel corners according to claim 1, characterized in that: The windshield assembly (10) comprises three windshields (11), the filling layer (12) in the interval between the second windshield (11) and the third windshield (11) is a second filling layer (122), and the second filling layer (122) has a flame retardant material.

5. The leak plugging device for tunnel corners according to any one of claims 1 to 4, characterized in that: The windshield plate (11) comprises a steel wire mesh (111) and a wind tube cloth (112), wherein the wind tube cloth (112) is covered on the steel wire mesh (111).

6. The leak plugging device for tunnel corners according to claim 5, characterized in that: The wire mesh (111) comprises a frame and a plurality of wire bodies, wherein the plurality of wire bodies are arranged crosswise on the frame, and tunnel communication holes are arranged at the top and bottom of the frame. The leak plugging device for tunnel corners also comprises a plurality of fasteners, and the plurality of fasteners are correspondingly inserted into the plurality of tunnel communication holes.

7. The leak plugging device for tunnel corners according to any one of claims 1 to 4, characterized in that: The leak-proof device for tunnel corners also includes a storage box (21) and a connecting pipe (22), wherein the storage box (21) has a storage cavity for accommodating filling material, a first end of the connecting pipe (22) is connected to the storage cavity, and a second end of the connecting pipe (22) can extend into the gap between two adjacent wind shields (11) so as to inject the filling material into the gap between the two adjacent wind shields (11) to form the filling layer (12).

8. The leak plugging device for tunnel corners according to claim 7, characterized in that: The leak-proof device for tunnel corners also includes a flow meter (23) for detecting the flow rate of the filling material, and the flow meter (23) is arranged on the connecting pipe (22).

9. The leak plugging device for tunnel corners according to claim 8, characterized in that: The plugging device for tunnel corners also includes a grouting pump (24); the connecting pipe (22) includes a first grouting pipe (221) and a second grouting pipe (222); the first end of the first grouting pipe (221) is connected to the storage chamber; the second end of the first grouting pipe (221) is connected to the water inlet of the grouting pump (24); the first end of the second grouting pipe (222) is connected to the water outlet of the grouting pump (24); the second end of the second grouting pipe (222) can extend into the interval between two adjacent wind shields (11); and the flow meter (23) is arranged on the first grouting pipe (221).

10. The leak plugging device for tunnel corners according to claim 9, characterized in that: The leak-proof device for tunnel corners also includes a housing (25), the grouting pump (24) and the flow meter (23) are both arranged in the housing (25), and the first grouting pipe (221) and the second grouting pipe (222) are both passed through the housing (25).

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