Grouting filling device

Abstract

The utility model provides a grouting filling device which comprises a flexible film bag and a grouting reserved pipe, first grouting liquid is injected into the flexible film bag, and an installation gap is formed between the flexible film bag filled with the first grouting liquid and a space to be filled. The grouting reserved pipe is arranged on the outer surface of the flexible film bag and located in the mounting gap, seepage holes are formed in the grouting reserved pipe, the seepage holes communicate with the mounting gap, and the grouting reserved pipe is used for being filled with second grouting liquid so that the second grouting liquid can enter the mounting gap through the seepage holes; and a sealing material for sealing the mounting gap is formed after the second grouting liquid is solidified. According to the technical scheme, the grouting reserved pipe is arranged in the mounting gap between the flexible film bags, the second grouting liquid is injected into the gap through the seepage holes, and when the second grouting liquid is solidified, a sealing material is formed, so that the gap between the flexible film bags can be effectively sealed, and air leakage of the goaf is prevented; therefore, the difficulty of fire prevention and extinguishment in the mine goaf is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of grouting filling devices, in particular to a grouting filling device. Background Art

[0002] Currently, flexible film bags are primarily used in mining technology. Flexible film bag-type side filling is a widely used method for gob-side retaining and is a primary method for side filling. Flexible film bags can flexibly adjust the gob-side retaining height according to the working face height, ensuring a good connection between the wall and the roof, thus avoiding many dangerous accidents.

[0003] However, since there are inevitably certain gaps between the flexible film bags, it is easy to cause air leakage in the goaf, which brings certain difficulties to the fire prevention and extinguishing work in the goaf of mines. Utility Model Content

[0004] The main purpose of the utility model is to provide a grouting filling device to solve the problem of air leakage in the prior art when the soft film bag type roadside filling is carried out along the goaf.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a grouting filling device. It includes:

[0006] A flexible film bag, wherein the flexible film bag is used to inject a first grouting liquid, and an installation gap is formed between the flexible film bag filled with the first grouting liquid and the space to be filled;

[0007] A grouting reserved tube is arranged on the outer surface of the flexible film bag and is located in the installation gap. A seepage hole is provided on the grouting reserved tube, and the seepage hole is connected to the installation gap. The grouting reserved tube is used to fill the second grouting liquid so that the second grouting liquid enters the installation gap through the seepage hole, and forms a sealing material to seal the installation gap after the second grouting liquid solidifies.

[0008] Furthermore, the grouting filling device is used to fill the tunnel, the flexible film bags are multiple, and the multiple flexible film bags are arranged along a preset direction, and the installation gap includes a first gap between the flexible film bag and the tunnel and a second gap between the flexible film bag and an adjacent flexible film bag;

[0009] Wherein, the grouting reserved pipe is arranged in the first gap and / or the second gap.

[0010] Furthermore, the grouting reserved pipe includes:

[0011] a first reserved tube, disposed in the first gap and located on the top of the flexible film bag, the first reserved tube being provided with the seepage hole;

[0012] The second reserved tube is arranged in the second gap and located at the side of the flexible film bag. The second reserved tube is provided with the seepage hole. The second reserved tube is connected to the first reserved tube.

[0013] Furthermore, a grouting hole is provided on one side of the first reserved pipe close to the second reserved pipe, and the grouting filling device also includes a grouting pipe, which is connected to the grouting hole so as to perform grouting into the grouting hole through the grouting pipe.

[0014] Furthermore, the length of the first reserved tube is greater than or equal to the width of the flexible film bag, the first reserved tube is provided with a plurality of the seepage holes, and the plurality of the seepage holes provided on the first reserved tube are arranged at intervals along the length direction of the first reserved tube; and / or,

[0015] The length of the second reserved tube is greater than or equal to the height of the flexible film bag. The second reserved tube is provided with a plurality of the seepage holes, and the plurality of the seepage holes provided on the second reserved tube are arranged at intervals along the length direction of the second reserved tube.

[0016] Furthermore, there are a plurality of seepage holes, which are spaced apart and arranged on the side of the grouting reserved pipe; and the grouting filling device further comprises:

[0017] A first blocking member is provided at the first end of the grouting reserved pipe; and / or,

[0018] The second blocking member is arranged at the second end of the grouting reserved pipe.

[0019] Furthermore, the grouting reserved pipe is connected to the flexible film bag, and the pipe material of the grouting reserved pipe is one or more of polyethylene, polyvinyl chloride or hard rubber.

[0020] Furthermore, the grouting filling device also includes:

[0021] A cable tie is fixedly connected to the flexible film bag, the cable tie is tied to the grouting reserved pipe, and the cable tie is spaced apart from the seepage hole.

[0022] Furthermore, the grouting reserved pipe includes a first tube sheet and a second tube sheet, two sides of the first tube sheet are connected to two sides of the second tube sheet to enclose a grouting channel connected to the seepage hole, at least a portion of the first tube sheet is attached to the flexible film bag, and the second tube sheet is arranged on a side of the first tube sheet away from the flexible film bag;

[0023] Wherein, the first tube sheet is a curved sheet; and / or,

[0024] The second tube sheet is a flat plate.

[0025] Furthermore, the seepage holes are provided on the first tube sheet.

[0026] By applying the technical solution of the present invention, a grouting reserved pipe is set in the installation gap between the flexible film bags, and a second grouting liquid is injected into the gap through the seepage hole. When the second grouting liquid solidifies, it forms a sealed material, which can effectively seal the gap between the flexible film bags and prevent air leakage in the goaf, thereby greatly reducing the difficulty of fire prevention and extinguishing work in the goaf of mines. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0028] Figure 1 Shows a front view of a grouting filling device provided according to an embodiment of the utility model;

[0029] Figure 2 A top view of a grouting filling device provided according to an embodiment of the present utility model is shown;

[0030] Figure 3 1. A front view of a grouting filling device with multiple flexible film bags provided according to an embodiment of the present invention is shown;

[0031] Figure 4 A structural schematic diagram of a grouting reserved pipe provided according to an embodiment of the utility model is shown.

[0032] The above drawings include the following reference numerals:

[0033] 100. Soft film bag;

[0034] 200, grouting reserved pipe; 210, seepage hole; 220, first reserved pipe; 230, second reserved pipe; 240, grouting hole; 251, first plugging member; 252, second plugging member; 260, first tube sheet; 270, second tube sheet; 280, grouting pipe;

[0035] 300. Cable tie. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0037] like Figure 1 and Figure 2As shown, the present invention provides a grouting and filling device. The device comprises a flexible film bag 100 and a grouting reserve tube 200. The flexible film bag 100 is used to inject a first grouting liquid, and an installation gap is defined between the flexible film bag 100 filled with the first grouting liquid and the space to be filled. The grouting reserve tube 200 is disposed on the outer surface of the flexible film bag 100 and is located within the installation gap. The grouting reserve tube 200 is provided with a seepage hole 210, which is in communication with the installation gap. The grouting reserve tube 200 is used to inject a second grouting liquid, so that the second grouting liquid enters the installation gap through the seepage hole 210 and forms a sealing material that seals the installation gap after the second grouting liquid solidifies.

[0038] Specifically, the sealing material formed by the second grouting liquid after solidification is in a solid state. The first grouting liquid is also in a solid state after solidification.

[0039] The grouting filling device provided by the embodiment of the present invention is adopted. By setting a grouting reservation tube 200 in the installation gap between the flexible film bags 100 and injecting a second grouting liquid into the gap through the seepage hole 210, the second grouting liquid forms a sealed material after solidification, which can effectively seal the gap between the flexible film bags 100 and prevent air leakage in the goaf, thereby greatly reducing the difficulty of fire prevention and extinguishing work in the goaf of mines. The grouting material can be selected from inorganic or organic materials. The appropriate sealing material can be selected according to actual needs to meet the requirements of air leakage prevention and sealing in different environments and conditions. It solves the problem of air leakage in the goaf of the flexible film bag 100 type along the goaf, reduces the risk of mine fires and gas explosions, and improves the safety of coal mining.

[0040] like Figure 3 As shown, specifically, the grouting filling device is used to fill the tunnel, and there are multiple flexible film bags 100, which are arranged along a preset direction. The installation gap includes a first gap between the flexible film bag 100 and the tunnel and a second gap between the flexible film bag 100 and the adjacent flexible film bag 100; wherein, the grouting reserved pipe 200 is arranged in the first gap and / or the second gap. The grouting reserved pipe 200 is arranged on the outer surface of the flexible film bag 100 and is located in the installation gap. One or more grouting reserved pipes 200 can be arranged in the installation gap. The second grouting liquid seeps to both sides in the grouting reserved pipe 200 and is evenly distributed to the first gap and the second gap through the seepage holes 210. As the second grouting liquid solidifies, these liquids will form a sealed material, effectively sealing the first gap between the flexible film bag 100 and the tunnel and the second gap between the flexible film bag 100 and the flexible film bag 100, preventing air leakage.

[0041] Specifically, the grouting reserved pipe 200 includes: a first reserved pipe 220, which is arranged in the first gap and located at the top of the flexible film bag 100, and is provided with a seepage hole 210; a second reserved pipe 230, which is arranged in the second gap and located at the side of the flexible film bag 100, and is provided with a seepage hole 210, and the second reserved pipe 230 is connected to the first reserved pipe 220. First, the grouting reserved pipe 200 is customized according to the size of the flexible film bag 100 to ensure that the reserved pipe can accurately match the length and height of the flexible film bag 100. Therefore, during the installation process of the flexible film bag 100, the reserved pipe can be accurately placed between the flexible film bags 100 or in the gap between the flexible film bag 100 and the roadway roof. In order to enhance the sealing performance of the entire wall, a first reserved pipe 220 is set at the top and a second reserved pipe 230 is set at the side, and they are internally connected to form a closed system to ensure that all gaps are filled with the second grouting liquid to form a continuous sealing effect.

[0042] Specifically, a grouting hole 240 is provided on one side of the first reserved tube 220 close to the second reserved tube 230, and the grouting filling device further includes a grouting pipe 280, which is in communication with the grouting hole 240 so as to inject grout into the grouting hole 240 through the grouting pipe 280. Since the top of the flexible film bag 100 is formed by solidification of the first grouting liquid, it is not necessarily a smooth horizontal surface. Therefore, a grouting device is provided in the grouting reserved tube 200 of the present invention, and the grouting device can evenly inject grout into the grouting reserved tube 200. The grouting device should be located at the first reserved tube 220 at the top of the flexible film bag 100 and biased toward one side of the first reserved tube 220 to ensure that the slurry outputted by the grouting device can flow evenly to both sides, thereby achieving a full filling effect. The wall of the grouting preparation tube 200 is provided with a grouting hole 240, which is connected to the grouting device. A grouting pipe 280 is provided at the grouting hole 240 and is sealed and connected thereto. The grouting pipe 280 at least partially extends out of the installation gap so that after the first grouting liquid in the flexible film bag 100 solidifies, the second grouting liquid can be filled into the grouting preparation tube 200 through the grouting pipe 280. The grouting device is provided with two grouting holes 240, each of which is connected to a grouting pipe 280, one of which is a spare grouting pipe 280 used to prevent the other grouting pipe 280 from being blocked.

[0043] Specifically, the length of the first reserved tube 220 is greater than or equal to the width of the flexible film bag 100, and the first reserved tube 220 is provided with a plurality of seepage holes 210, and the plurality of seepage holes 210 provided on the first reserved tube 220 are arranged at intervals along the length direction of the first reserved tube 220; and / or, the length of the second reserved tube 230 is greater than or equal to the height of the flexible film bag 100, and the second reserved tube 230 is provided with a plurality of seepage holes 210, and the plurality of seepage holes 210 provided on the second reserved tube 230 are arranged at intervals along the length direction of the second reserved tube 230. When the length of the first reserved tube 220 is equal to the width of the flexible film bag 100, the first reserved tube 220 extends in a straight line along the top of the flexible film bag 100. When the length of the first reserved tube 220 is greater than the width of the flexible film bag 100, the first reserved tube 220 is arranged in a zigzag manner along the width of the top of the flexible film bag 100. The relationship between the length of the second reserved tube 230 and the height of the flexible film bag 100 is the same as the relationship between the first reserved tube 220 and the width of the flexible film bag 100. Seepage holes 210 are provided in the side walls of the first reserved tube 220 and the second reserved tube 230.

[0044] Specifically, there are multiple seepage holes 210, which are spaced apart and arranged on the side of the grouting pre-reserved pipe 200. The grouting filling device also includes: a first plugging member 251, which is arranged at the first end of the grouting pre-reserved pipe 200; and / or a second plugging member 252, which is arranged at the second end of the grouting pre-reserved pipe 200. When multiple flexible film bags 100 are combined to fill the goaf of the goaf-side entry, the first plugging member 251 and the second plugging member 252 can be controlled to prevent the second grouting liquid from flowing out of one end of the grouting pre-reserved pipe 200 of the edge flexible film bag 100 without restriction, thereby reducing material waste and costs, and ensuring that the second grouting liquid evenly seeps from the seepage holes 210 into the installation gap.

[0045] Specifically, the grouting reserved tube 200 is connected to the flexible film bag 100, and the pipe material of the grouting reserved tube 200 is one or more of polyethylene, polyvinyl chloride or hard rubber. The material of the grouting reserved tube 200 is selected from materials that have support and can be bent after processing. These materials are environmentally friendly, not easy to age, and have good support and processability, and are suitable for coal mine environments. During installation and use, the grouting reserved tube 200 is first processed according to the size of the flexible film bag 100, and then a bending opening is cut on the grouting reserved tube 200 according to the height and width of the flexible film bag 100, and the grouting reserved tube 200 is bent into an L shape to fit the shape of the flexible film bag 100. Finally, the grouting reserved tube 200 is fixedly connected to the flexible film bag 100.

[0046] Specifically, the grouting filling device further comprises a tie 300 fixedly connected with the flexible membrane bag 100, the tie 300 is bound on the grouting reserved pipe 200, and the tie 300 is arranged at intervals with the seepage hole 210. In the filling process of the flexible membrane bag 100, the tie 300 is used to fix the grouting reserved pipe 200 together with the grouting device on the upper part and the side edge center of the flexible membrane bag 100, which ensures the stability of the reserved pipe in the filling material and avoids displacement of the reserved pipe in the filling process.

[0047] Specifically, as shown in Figure 4 The grouting reserved pipe 200 comprises a first pipe plate 260 and a second pipe plate 270, two sides of the first pipe plate 260 are connected with two sides of the second pipe plate 270 to enclose a grouting channel communicated with the seepage hole 210, at least part of the first pipe plate 260 is attached to the flexible membrane bag 100, and the second pipe plate 270 is arranged on a side of the first pipe plate 260 away from the flexible membrane bag 100; wherein the first pipe plate 260 is an arc-shaped plate; and / or the second pipe plate 270 is a flat plate. The first pipe plate 260 is a semicircular pipe wall, and the second pipe plate 270 is a flat pipe wall, which enclose a semicircular pipe, in use, the first pipe plate 260 faces the side of the flexible membrane bag 100, and the second pipe plate 270 faces the side of the installation gap, after the first grouting liquid is injected into the flexible membrane bag 100, the first grouting liquid solidifies and wraps the first pipe plate 260 in the flexible membrane bag 100, which can prevent the grouting reserved pipe 200 from not being attached to the flexible membrane bag 100 to increase the installation gap.

[0048] Specifically, the seepage hole 210 is arranged on the first pipe plate 260. The seepage hole 210 is arranged on the side wall of the first pipe plate 260, and after the second grouting liquid flows out of the seepage hole 210, the second grouting liquid flows into the installation gap between the flexible membrane bags 100 or between the flexible membrane bag 100 and the roadway roof.

[0049] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects:

[0050] By reserving the grouting pipe 280 between the flexible membrane bags 100 and filling the second grouting liquid to form airtight material, the gap between the flexible membrane bags 100 can be effectively closed, and the air leakage phenomenon of the goaf can be significantly reduced, which provides strong support for the fire prevention and extinguishing work of the goaf of the mine. Closing the gap between the flexible membrane bags 100 and the gap between the flexible membrane bag 100 and the roadway roof can effectively reduce the risk of mine fire and gas explosion and significantly improve the safety of coal mining. The device and method of the utility model are simple and easy to implement, do not need complex operation, reduce the construction difficulty, and improve the work efficiency. In summary, the utility model provides a flexible membrane bag 100 along-gob remaining roadway wall grouting air leakage prevention device which is efficient, safe and economical, solves the air leakage problem of the flexible membrane bag 100 along-gob remaining roadway goaf, improves the safety of the mine, and has remarkable practical value.

[0051] 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 form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0052] Unless otherwise specified, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. Technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0053] In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0054] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0055] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0056] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A grouting filling device, characterized in that: include: A flexible film bag (100), wherein a first grouting liquid is injected into the flexible film bag (100), and an installation gap is provided between the flexible film bag (100) filled with the first grouting liquid and the space to be filled; A grouting reserve pipe (200) is arranged on the outer surface of the flexible film bag (100) and is located in the installation gap. A seepage hole (210) is provided on the grouting reserve pipe (200), and the seepage hole (210) is communicated with the installation gap. The grouting reserve pipe (200) is used to fill a second grouting liquid so that the second grouting liquid enters the installation gap through the seepage hole (210) and forms a sealing material for sealing the installation gap after the second grouting liquid solidifies.

2. The grouting filling device according to claim 1, characterized in that: The grouting filling device is used to fill the tunnel, the flexible film bags (100) are multiple, and the multiple flexible film bags (100) are arranged along a preset direction, and the installation gap includes a first gap between the flexible film bag (100) and the tunnel and a second gap between the flexible film bag (100) and an adjacent flexible film bag (100); Wherein, the grouting reserved pipe (200) is arranged in the first gap and / or the second gap.

3. The grouting filling device according to claim 2, characterized in that: The grouting reserved pipe (200) comprises: a first reserved tube (220), arranged in the first gap and located at the top of the flexible film bag (100), the first reserved tube (220) being provided with the seepage hole (210); The second reserved tube (230) is arranged in the second gap and located on the side of the soft film bag (100). The second reserved tube (230) is provided with the seepage hole (210). The second reserved tube (230) is connected to the first reserved tube (220).

4. The grouting filling device according to claim 3, characterized in that: A grouting hole (240) is provided on one side of the first reserved pipe (220) close to the second reserved pipe (230), and the grouting filling device further includes a grouting pipe (280), which is connected to the grouting hole (240) so as to perform grouting into the grouting hole (240) through the grouting pipe (280).

5. The grouting filling device according to claim 3, characterized in that: The length of the first reserved tube (220) is greater than or equal to the width of the flexible film bag (100), the first reserved tube (220) is provided with a plurality of the seepage holes (210), and the plurality of the seepage holes (210) provided on the first reserved tube (220) are arranged at intervals along the length direction of the first reserved tube (220); and / or, The length of the second reserved tube (230) is greater than or equal to the height of the flexible film bag (100), and the second reserved tube (230) is provided with a plurality of the seepage holes (210), and the plurality of the seepage holes (210) provided on the second reserved tube (230) are arranged at intervals along the length direction of the second reserved tube (230).

6. The grouting filling device according to claim 1, characterized in that: There are a plurality of seepage holes (210), and the plurality of seepage holes (210) are arranged at intervals on the side of the grouting reserved pipe (200); the grouting filling device further comprises: A first blocking member (251) is provided at the first end of the grouting reserved pipe (200); and / or, A second blocking member (252) is provided at the second end of the grouting reserved pipe (200).

7. The grouting filling device according to claim 1, characterized in that: The grouting reserved pipe (200) is connected to the flexible film bag (100), and the pipe material of the grouting reserved pipe (200) is one or more of polyethylene, polyvinyl chloride or hard rubber.

8. The grouting filling device according to claim 1, characterized in that: The grouting filling device also includes: A cable tie (300) is fixedly connected to the flexible film bag (100), the cable tie (300) is tied to the grouting reserved pipe (200), and the cable tie (300) is spaced apart from the seepage hole (210).

9. The grouting filling device according to claim 1, characterized in that: The grouting reserved pipe (200) comprises a first tube sheet (260) and a second tube sheet (270), two sides of the first tube sheet (260) are connected to two sides of the second tube sheet (270) to enclose a grouting channel communicating with the seepage hole (210), at least a portion of the first tube sheet (260) is attached to the flexible film bag (100), and the second tube sheet (270) is arranged on a side of the first tube sheet (260) away from the flexible film bag (100); Wherein, the first tube sheet (260) is a curved sheet; and / or, The second tube sheet (270) is a flat plate.

10. The grouting filling device according to claim 9, characterized in that: The seepage holes (210) are provided on the first tube sheet (260).

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