CN219176383U - Joint device capable of utilizing high-pressure water injection of through-layer drilling - Google Patents

Abstract

The utility model relates to the technical field of mine tools, in particular to a joint device capable of utilizing high-pressure water injection of a penetrating drill hole. The utility model can achieve the purpose of drilling holes to carry out high-pressure water injection on coal bodies by utilizing the outburst prevention measures of the thrown areas of the bottom suction roadway.

Description

Joint device capable of utilizing high-pressure water injection of through-layer drilling

Technical Field

The utility model relates to the technical field of mine tools, in particular to a joint device capable of injecting water at high pressure by means of through-layer drilling.

Background

The coal face and the return airway are polluted in the production process, so that the safety production of the coal mine is threatened, the health of working staff on the coal face is damaged, and therefore, effective measures must be taken in a mine to reduce the coal dust pollution of the working face and the return airway, and the working environment of the working staff on the working face is improved. The coal seam is injected with water to moisten the coal body by arranging drilling holes in the coal seam, so that the coal dust pollution is effectively reduced. However, prior to face mining, coal seams have low gas permeability and relatively slow water injection rates, and thus require the advance of drilling holes in the coal seam for water injection. However, for protruding mines, a large number of through-layer drill holes are arranged before mining on the working face, and the gas extraction work needs to continue the whole mining process of the working face, so that the coal seam water injection cannot be realized in time and space. Therefore, in the actual production process, if the working face carries out coal seam water injection and dust fall, the working face cannot pump coal body gas in advance, and the contradiction between coal seam gas extraction and coal seam water injection and dust fall exists. Therefore, how to simultaneously consider the gas extraction of the working face and the coal seam water injection dust fall in time and space becomes an important technical problem which needs to be solved in the process of the mine coal seam exploitation.

The prior water injection mode comprises shallow hole water injection of the working face and low-pressure water injection of the drill holes of the working face cis-slots. According to the actual water injection effect in the past, the shallow hole water injection effect of the working face is poor, so that the coal body cannot be well moistened, and the dust suppression effect is realized; the working face is utilized to fill water from the sequential layer drilling holes, the sequential layer drilling holes are also required to be constructed in the sequential layer drilling holes, and meanwhile, most of water enters the bottom pumping roadway penetrating drilling holes due to dead weight and the pumping system after the sequential layer water filling, so that water is accumulated in the bottom pumping roadway penetrating drilling holes, and the bottom pumping roadway penetrating drilling hole pumping effect is affected. If the coal is injected with water by drilling holes through the anti-burst measures in the thrown area of the bottom-pumped roadway, how to ensure the water injection pressure and effect is the key of injecting water by using the through-layer drilling holes, so that a joint device capable of injecting water at high pressure by using the through-layer drilling holes is needed to solve the problem.

Disclosure of Invention

The utility model aims to provide a joint device capable of injecting water at high pressure by using a through-layer drilling hole so as to solve the problems and achieve the purpose of injecting water at high pressure by using a cast-in-place area anti-burst measure drilling hole of a bottom suction roadway.

In order to achieve the above object, the present utility model provides the following solutions: the utility model provides a connector device of usable layer drilling high pressure water injection, includes first continuous pipe and second continuous pipe, first continuous pipe cover is established the second is continuous outside the pipe, first continuous pipe top sets up in the rock layer, the second is continuous the pipe setting in the coal seam, first continuous pipe bottom outside cover is equipped with upper cover and base, the upper cover with the base can be dismantled and be connected, the upper cover sets up the base top, upper cover inner wall top with be equipped with sealing portion between the first continuous pipe outer wall, second continuous pipe bottom with base bottom intercommunication.

Preferably, the bottom of the inner wall of the upper cover is provided with an internal thread, the top of the outer wall of the base is provided with an external thread, and the internal thread and the external thread are matched with each other.

Preferably, the internal thread and the external thread are both conical threads.

Preferably, the sealing part comprises a gasket, and the gasket is arranged between the top of the inner wall of the upper cover and the outer wall of the first connecting and extracting pipe.

Preferably, the bottom of the base is fixedly connected with a reducing joint, the reducing joint is communicated with the base, the bottom of the second continuous suction pipe is communicated with the reducing joint, and the bottom of the second continuous suction pipe is positioned inside the reducing joint.

Preferably, the outer wall of the upper cover is fixedly connected with a plurality of power-assisted handles.

Preferably, the outer wall of the base is fixedly connected with a plurality of fixing pieces, and the fixing pieces are fixedly connected with the rock layer through connecting pieces.

Preferably, the fixing piece comprises a rooting bolt, the rooting bolt is fixedly connected with the outer wall of the base, the connecting piece comprises an iron wire, and two ends of the iron wire are fixedly connected with the rooting bolt and the rock layer respectively.

The utility model has the following technical effects:

the upper cover and the base are connected with the first continuous pumping pipe and the second continuous pumping pipe, the second continuous pumping pipe is used for injecting water into the coal seam, and the rock layer, the first continuous pumping pipe, the upper cover and the base jointly form a closed space, so that water injected into the coal seam can not flow back, the water injection pressure is ensured, and the sealing part is arranged between the upper cover and the first continuous pumping pipe, so that the internal pressure of the device can be better maintained, and the pressure is not leaked.

Drawings

For a clearer description of an embodiment of the utility model or of the solutions of the prior art, the drawings that are needed in the embodiment will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art:

FIG. 1 is a schematic view of the working state of the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1 at B;

FIG. 3 is a cross-sectional view of the upper cover of the present utility model;

FIG. 4 is a schematic top view of the top cover of the present utility model;

FIG. 5 is a cross-sectional view of a base of the present utility model;

FIG. 6 is a cross-sectional view A-A of FIG. 5;

wherein, 1, upper cover; 2. a power-assisted handle; 3. an internal thread; 4. an external thread; 5. a base; 6. a fixing member; 7. a reducing joint; 8. a straight-through joint; 9. a coal seam; 10. a rock layer; 11. a connecting piece; 12. a water source; 13. a first connecting and extracting pipe; 14. a second continuous pumping pipe; 15. a gasket.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.

Referring to fig. 1-6, the utility model provides a joint device capable of injecting water at high pressure by using a through-layer drilling hole, which comprises a first connecting and extracting pipe 13 and a second connecting and extracting pipe 14, wherein the first connecting and extracting pipe 13 is sleeved outside the second connecting and extracting pipe 14, the top of the first connecting and extracting pipe 13 is arranged in a rock layer 10, the second connecting and extracting pipe 14 is arranged in a coal seam 9, an upper cover 1 and a base 5 are sleeved outside the bottom of the first connecting and extracting pipe 13, the upper cover 1 is detachably connected with the base 5, the upper cover 1 is arranged above the base 5, a sealing part is arranged between the top of the inner wall of the upper cover 1 and the outer wall of the first connecting and extracting pipe 13, and the bottom of the second connecting and extracting pipe 14 is communicated with the bottom of the base 5.

The upper cover 1 and the base 5 are connected with the first continuous pumping pipe 13 and the second continuous pumping pipe 14, the second continuous pumping pipe 14 injects water into the coal seam 9, and the rock layer 10, the first continuous pumping pipe 13, the upper cover 1 and the base 5 together form a closed space which can prevent water injected into the coal seam 9 from flowing back, so that the water injection pressure is ensured, and the sealing part is arranged between the upper cover 1 and the first continuous pumping pipe 13 to better maintain the internal pressure of the device without leakage.

Further optimizing scheme, upper cover 1 inner wall bottom is equipped with internal thread 3, and base 5 outer wall top is equipped with external screw thread 4, and internal thread 3 and external screw thread 4 mutually support, form detachable construction, the installation and the dismantlement of the device of being convenient for.

Further optimizing scheme, internal thread 3 and external screw thread 4 are the awl screw thread, and the awl screw thread can make upper cover 1 and base 5 connect more inseparabler, realizes better sealed effect, guarantees the pressure of annotating water.

Further optimizing scheme, sealing portion includes gasket 15, and gasket 15 sets up between upper cover 1 inner wall top and first connecting and extracting tube 13 outer wall, and gasket 15 can fill the gap between upper cover 1 and the first connecting and extracting tube 13, makes the inside and the external world of device separate, forms inside inclosed space.

According to a further optimization scheme, the bottom of the base 5 is fixedly connected with a reducer union 7, the reducer union 7 is communicated with the base 5, the bottom of the second continuous suction pipe 14 is communicated with the reducer union 7, and the bottom of the second continuous suction pipe 14 is positioned inside the reducer union 7. The base 5 and the reducer union 7 can be connected in a welding, riveting and other modes, or can be integrated. Due to the arrangement of the reducing, the bottom of the second continuous pumping pipe 14 stretches downwards into the reducing joint 7, and then stretches downwards, so that the combination of the two parts is tighter and tighter, the second continuous pumping pipe 14 is ensured not to be flushed away by water flow, and the sealing and bearing effects are achieved.

Further optimizing scheme, upper cover 1 outer wall rigid coupling has a plurality of helping hand handles 2, and operating personnel holds helping hand handle 2 rotatory upper cover 1 through both hands, makes upper cover 1 internal thread 3 and base 5 go up external screw thread 4 mutually support to make upper cover 1 and base 5 link to each other.

In a further optimized scheme, the outer wall of the base 5 is fixedly connected with a plurality of fixing pieces 6, and the fixing pieces 6 are fixedly connected with the rock layer 10 through connecting pieces 11. The arrangement of the fixing piece 6 and the connecting piece 11 can enable the device to be stably fixed on the rock layer 10, so that operators are prevented from lifting the device for a long time in the water injection process, and the labor intensity of the operators is reduced.

Further optimizing scheme, mounting 6 includes rooting bolt, and rooting bolt and base 5 outer wall rigid coupling, and connecting piece 11 includes the iron wire, and iron wire both ends are respectively with rooting bolt and rock layer 10 rigid coupling. The rooting bolt and the base 5 can be welded, bonded and the like, one end of the iron wire is bound and connected with the rooting bolt, and the other end of the iron wire is bound and connected with the rock layer.

The working process of the utility model is as follows:

the upper cover 1 and the base 5 are detached before the device is used, the upper cover 1 and the base 5 are sequentially sleeved outside the first connecting pipe 13, the base 5 is fixed on the rock layer 10 through the fixing piece 6 and the connecting piece 11 on the base 5, the device is prevented from moving during working, meanwhile, a worker can be omitted from lifting the device for a long time, and the labor intensity of operators is reduced. After the base 5 is fixed, the bottom of the first connecting and extracting pipe 13 is propped against the bottom surface of the inner wall of the base 5, and the second connecting and extracting pipe 14 is inserted into the reducer union 7 and is tightly connected with the two. The upper cover 1 is rotated by the power-assisted handle 2, the internal thread 3 and the external thread 4 are meshed with each other, and the upper cover 1 and the base 5 are connected together. The gasket 15 between the upper cover 1 and the first connecting and extracting pipe 13 is extruded to fill the gap between the upper cover 1 and the first connecting and extracting pipe 13, and the inside of the device, the first connecting and extracting pipe 13 and the rock layer 10 jointly form a closed space. The straight joint 8 at the lower part of the reducer union 7 is connected with a water source 12, and the water source 12 is started to inject water into the coal seam 9. Because the inside of the device is a closed space, water flow can not flow back under the action of pressure, and even if part of water flows down from the edge, the water can be received by the first connecting and extracting pipe 13 and the base 5 and can not flow out of the device.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.

Claims (8)

1. The utility model provides a connector device of usable layer drilling high pressure water injection, includes first continuous pipe (13) and second continuous pipe (14), first continuous pipe (13) cover is established the outside of second continuous pipe (14), first continuous pipe (13) top sets up in rock layer (10), second continuous pipe (14) set up in coal seam (9), its characterized in that: the utility model discloses a portable vacuum cleaner, including base (5) and upper cover, upper cover (1) and base (5) are equipped with to first continuous take out pipe (13) bottom outside cover, upper cover (1) with base (5) can dismantle the connection, upper cover (1) set up base (5) top, upper cover (1) inner wall top with be equipped with sealing portion between first continuous take out pipe (13) outer wall, second continuous take out pipe (14) bottom with base (5) bottom intercommunication.

2. A joint device for high pressure water injection by means of through-hole drilling according to claim 1, characterized in that: the inner wall bottom of the upper cover (1) is provided with an internal thread (3), the top of the outer wall of the base (5) is provided with an external thread (4), and the internal thread (3) and the external thread (4) are matched with each other.

3. A joint device for high pressure water injection by means of through-hole drilling according to claim 2, characterized in that: the internal thread (3) and the external thread (4) are both conical threads.

4. A joint device for high pressure water injection by means of through-hole drilling according to claim 1, characterized in that: the sealing part comprises a gasket (15), and the gasket (15) is arranged between the top of the inner wall of the upper cover (1) and the outer wall of the first connecting and extracting pipe (13).

5. A joint device for high pressure water injection by means of through-hole drilling according to claim 1, characterized in that: the bottom of the base (5) is fixedly connected with a reducing joint (7), the reducing joint (7) is communicated with the base (5), the bottom of the second continuous suction pipe (14) is communicated with the reducing joint (7), and the bottom of the second continuous suction pipe (14) is positioned inside the reducing joint (7).

6. A joint device for high pressure water injection by means of through-hole drilling according to claim 1, characterized in that: the outer wall of the upper cover (1) is fixedly connected with a plurality of power-assisted handles (2).

7. A joint device for high pressure water injection by means of through-hole drilling according to claim 1, characterized in that: the outer wall of the base (5) is fixedly connected with a plurality of fixing pieces (6), and the fixing pieces (6) are fixedly connected with the rock layer (10) through connecting pieces (11).

8. A joint assembly for high pressure water injection using a through-hole as defined in claim 7, wherein: the fixing piece (6) comprises a rooting bolt, the rooting bolt is fixedly connected with the outer wall of the base (5), the connecting piece (11) comprises an iron wire, and two ends of the iron wire are fixedly connected with the rooting bolt and the rock layer (10) respectively.

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