Closing the sac

Abstract

The present invention relates to the technical field of mine plugging, and in particular to a plugging bag; comprising a bag (1), the bag (1) is tied to the outer layer of a tube (7); a feed port (2) is provided at one end of the bag (1); a solid adhesive layer is attached to the outer surface of the bag (1), a smooth protective film (3) is attached to the outer layer of the solid adhesive layer, and a traction device is provided at the end of the protective film (3); the bag of the present application can achieve bonding between the bag body and the hole during the process of filling expansion and solidification, so that during the solidification process of the material, there is a certain shear resistance between the bag body and the hole, thereby enhancing the sealing effect.

Description

Technical Field

[0001] The invention relates to the technical field of mine plugging, and in particular to a plugging bag. Background Art

[0002] At present, many mines need to be hydraulically fractured first to release the impact ground pressure. However, due to the complex geological structure, no suitable sealing method for high-pressure water injection holes or gas extraction holes has been found. The existing method is to use a polyurethane foam bag for sealing after the pipe body descends or rises to a specified position. During the filling and solidification process of the bag body, due to the large shear force between the sealing body and the hole, if the shear resistance is insufficient, the bag body will loosen and slide in the hole, thereby failing to play a sealing role. Therefore, it is necessary to design a new type of sealing bag. Summary of the invention

[0003] In order to effectively solve the problems in the above background technology, the present invention proposes a blocking bag, and the specific technical solution is as follows:

[0004] A blocking bag comprises a bag (1), the bag (1) being tied to the outer layer of a tube (7); a feed port (2) being provided at one end of the bag (1); a solid adhesive layer being affixed to the outer surface of the bag (1), a smooth protective film (3) being affixed to the outer layer of the solid adhesive layer, and a traction device being provided at the end of the protective film (3).

[0005] Preferably, the bag (1) is provided with a discharge port (4), and the discharge port (4) and the feed port (2) are arranged on the same side of the bag (1);

[0006] Preferably, the traction device comprises a hook (5) arranged at the bottom of the protective film, and the hook (5) is connected to the traction rope (6);

[0007] Preferably, the bag (1) is made of cloth, rubber or plastic film.

[0008] Preferably, the bag (1) can be penetrated by the tube (7) and fixed by binding the upper and lower ends of the bag (1).

[0009] Preferably, the bag (1) is fixed by binding the upper and lower ends of the bag with the tube body (7).

[0010] Preferably, the upper and lower ends of the protective film (3) are respectively clamped with the solid adhesive layer.

[0011] A method for using a occluding bladder bag comprises the following steps;

[0012] The feed port (2) is connected to the injection tube, and the bladder (1) is tied to the tube body (7) in the forward direction, and the tube body (7) is inserted into the hole. When the tube body (7) is inserted to the designated position, the traction rope (6) is pulled to tear off the protective film (3) attached to the solid glue layer, and then the solidifiable material is injected into the bladder (1) until the bladder (1) is filled and bulged and fits with the side wall of the hole through the solid glue layer;

[0013] Preferably, the solidifiable material is cement slurry or polyurethane raw material;

[0014] The beneficial effect of the present invention is that the bag of the present application can achieve bonding between the bag body and the holes during the process of filling, expansion and solidification, so that during the solidification process of the material, there is a certain shear resistance between the bag body and the holes, thereby enhancing the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention;

[0016] Figure 2 It is a partial schematic diagram of the present invention;

[0017] In the figure: a bag 1, a feed port 2, a protective film 3, a discharge port 4, a hook 5, a traction rope 6, and a tube body 7. DETAILED DESCRIPTION

[0018] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods;

[0019] A blocking bag comprises a bag 1, the bag 1 is tied to the outer layer of a tube body 7; a feed port 2 is provided at one end of the bag 1; a solid adhesive layer is attached to the outer surface of the bag 1, a smooth protective film 3 is attached to the outer layer of the solid adhesive layer, a traction device is provided at the end of the protective film 3; the traction device comprises a hook 5 arranged at the bottom of the protective film, and the hook 5 is connected to a traction rope 6;

[0020] The bag 1 is provided with a discharge port 4, and the discharge port 4 and the feed port 2 are arranged on the same side of the bag 1; the discharge port of the bag 1 of the device can be used to discharge the air in the bag at the initial installation stage, so that the bag can be fed more conveniently, and both the feed port and the discharge port are provided with plugs, and during use, the discharge port can be blocked first and then the material can be filled;

[0021] The material of the bag 1 is cloth, rubber or plastic film. The bag 1 can be penetrated by the tube 7 and fixed by binding the upper and lower ends of the bag 1. The bag 1 is fixed by binding the upper and lower ends with the tube 7. The binding and fixing of the bag is achieved by binding the upper and lower ends. The binding position does not affect the use of the feed port and the discharge port. The binding method can be to bind the bag by wire or the like.

[0022] The upper and lower ends of the protective film 3 are respectively clamped with the solid adhesive layer; when the tube body of the bag moves in the hole, the protective film will be scratched due to external environmental reasons, causing the protective film to fall off in advance, and the clamping of the protective film is to embed the two ends of the protective film into the solid adhesive layer, and the hook of the traction rope is connected to the protective film clamped in the solid adhesive layer. During use, the traction rope is pulled to separate the protective film from the solid adhesive layer and then tear it off;

[0023] A method for using a occluding bladder bag comprises the following steps;

[0024] Connect the feed port 2 to the injection tube, and tie the bag 1 to the tube body 7 in the forward direction, and extend the tube body 7 into the hole. When it is extended to the specified position, pull the traction rope 6 to tear off the protective film 3 attached to the solid glue layer, and then inject a solidifiable material into the bag 1. The solidifiable material is cement slurry or polyurethane raw material. When the bag 1 is filled and bulged, the expanded bag fits tightly against the hole wall, so that the solid glue layer fits against the side wall of the hole; in the process of solidification of the material, the volume will be slightly reduced, and the force of the bag and the side wall of the hole wall will be reduced, which will generate downward shear force. At this time, the adhesion between the bag and the side wall of the hole wall can provide good shear resistance and greatly enhance the sealing strength.

[0025] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the invention.

Claims

1. A blocking bag, characterized in that: The invention comprises a sac (1), wherein the sac (1) is tied to the outer layer of a tube (7); a feed port (2) is provided at one end of the sac (1); a solid adhesive layer is attached to the outer surface of the sac (1), a smooth protective film (3) is attached to the outer layer of the solid adhesive layer, and a traction device is provided at the end of the protective film (3); The bag (1) is provided with a discharge port (4), and the discharge port (4) and the feed port (2) are arranged on the same side of the bag (1); The traction device comprises a hook (5) arranged at the bottom of the protective film, and the hook (5) is connected to a traction rope (6); The material of the bag (1) is cloth, rubber or plastic film; The pouch (1) can be penetrated by the tube (7); The pouch (1) is fixed by binding the tube (7) at its upper and lower ends; The upper and lower ends of the protective film (3) are respectively clamped with the solid adhesive layer.

2. A method for using the blocking bag according to claim 1, characterized in that: The steps include: The feed port (2) is connected to the injection tube, and the sac (1) is tied to the tube body (7) in the forward direction, and the tube body (7) is inserted into the hole. When the tube body (7) is inserted to the designated position, the traction rope (6) is pulled to tear off the protective film (3) attached to the solid glue layer, and then the solidifiable material is injected into the sac (1) until the sac (1) is filled and bulged and fits with the side wall of the hole through the solid glue layer.

3. The method of use according to claim 2, characterized in that: The solidifiable material is cement slurry or polyurethane raw material.

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