CN216446960U

CN216446960U - Novel down take out and adopt drilling forced air drainage device

Info

Publication number: CN216446960U
Application number: CN202122669304.5U
Authority: CN
Inventors: 叶林虎; 李红英; 张仲宝
Original assignee: Liuzhi Industry And Mining Group Hengda Survey And Design Co ltd
Current assignee: Liuzhi Industry And Mining Group Hengda Survey And Design Co ltd
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2022-05-06
Anticipated expiration: 2031-11-03

Abstract

The utility model discloses a novel down-stream extraction drill hole compressed air drainage device which comprises a drawing and placing main pipe, a water outlet pipe and a compressed air pipe communicated with the drawing and placing main pipe, wherein one end of the drawing and placing main pipe is of a double-layer pipe structure, an inner pipe of the double-layer pipe extends out of the side wall of an outer pipe and is communicated with the water outlet pipe, a filter residue cover is arranged at the bottom of the outer pipe of the double-layer pipe, and sieve holes are uniformly distributed on the filter residue cover. The utility model can avoid the blockage of the double-layer pipe by the drilling slag, effectively ensure the normal operation of extraction and has higher universality.

Description

Novel down take out and adopt drilling forced air drainage device

Technical Field

The utility model relates to the technical field of coal mine gas treatment, in particular to a novel downward extraction drill hole compressed air drainage device.

Background

When a coal mine is underground to develop a gas treatment project, a large number of negative-angle gas extraction drill holes have to be implemented due to the limitation of the gas roadway position and the constraint of the arrangement mode of the coal face.

In a well field with relatively developed fracture water, the negative-angle drill hole is inevitably influenced by the fracture water in the extraction process, on one hand, the drill hole is in a state of co-extraction of water and gas for a long time due to the existence of the fracture water, and the extraction efficiency is reduced; on the other hand, when a gas extraction drill hole, particularly a coal hole section, is soaked by fracture water for a long time, a hole collapse phenomenon occurs, and the drill hole is blocked and cannot be normally extracted.

In order to solve the problems, mine gas governors invent compressed air drainage devices and use double-layer pipes in a matched mode, and regularly drain the drill holes with serious accumulated water by using the mine compressed air and the drainage devices; however, a certain amount of drilling slag is stored at the bottom of the drill hole in the construction process and the subsequent extraction; the drill slag particles in the drill slag are different in size, and under the action of extraction negative pressure, the drill slag blocks the double-layer pipe, so that the drill hole cannot be normally extracted.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the related art, the utility model provides a novel down-extraction drilling compressed air drainage device, which aims to overcome the technical problems in the prior related art.

Therefore, the utility model adopts the following specific technical scheme:

the utility model provides a novel take out and adopt drilling forced air drainage device down, including taking out and put the person in charge, outlet pipe and with take out and put the compressed air pipe of being responsible for the intercommunication, take out and put person in charge one end and be the double-layer tube structure, the inner tube of double-layer tube stretches out and communicates with the outlet pipe from the outer tube lateral wall, the outer tube bottom of double-layer tube is provided with the filter residue cover, the filter residue covers the equipartition and has the sieve mesh.

Preferably, the drainage main pipe is provided with an observation hole close to the double-layer pipe structure.

Preferably, one end of the drainage main pipe, which is far away from the double-layer pipe structure, is provided with a drainage port.

Preferably, the joint of the pressure air pipe and the drainage main pipe is provided with a first gate valve, a second gate valve is arranged between the drainage port and the double-layer pipe structure, and a third gate valve is arranged on the water outlet pipe.

Preferably, the filter residue cover is in a spherical arc shape protruding outwards.

Preferably, still include the support, the support is including the ejector pin that is used for shoring filter residue cover middle part and the dead lever of three circumference equipartitions, and the equal one end of dead lever is fixed on the ejector pin, and the dead lever other end is all fixed in filter residue cover outer fringe.

Preferably, the water outlet pipe and the inner pipe of the double-layer pipe are integrally formed.

Preferably, the joint of the inner pipe and the outer pipe of the double-layer pipe is welded and sealed.

Preferably, the outer edge of the residue filtering cover is also provided with a connecting hole.

Compared with the prior art, the utility model has the beneficial effects that:

1. this novel down take out and adopt drilling pressure wind drainage device, through the cooperation each other of compressed air pipe, drainage person in charge and outlet pipe for wholly can high-efficiently discharge drilling ponding, have wide application prospect.

2. This novel down take out and adopt drilling forced air drainage device through set up the filter residue cover on the outer tube of double-deck tubular structure, can effectively prevent that the drilling slag from entering into the double-deck pipe when the forced air drainage to avoid the drilling slag to block up the double-deck pipe, effectively guarantee the normal clear of taking out and adopt, have higher commonality.

The setting mode of the utility model is simple and effective, and can meet more use scenes.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 shows a schematic structural diagram of an embodiment of the novel down-gas extraction borehole compressed air drainage device;

fig. 2 shows a schematic structural diagram of another embodiment of the novel down-gas extraction borehole compressed air drainage device;

fig. 3 shows a schematic diagram of the structure of the screen in fig. 2.

Detailed Description

For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the utility model, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.

In the description of the present invention, it should be noted that the structures, ratios, sizes, and the like shown in the drawings attached to the present specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical essence, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the technical disclosure of the present invention without affecting the function and the achievable purpose of the present invention. While the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like refer to orientations and positional relationships illustrated in the drawings, which are used for convenience in describing the utility model and to simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered limiting of the utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Description of reference numerals: compressed air pipe 1, first gate valve 2, inner tube 3, outer tube 4, third gate valve 5, outlet pipe 6, joint 7, take out and put mouth 8, second gate valve 9, filter residue cover 10, connecting hole 11, dead lever 12, ejector pin 13.

As shown in figure 1, a novel down extraction drilling compressed air drainage device comprises a main drainage pipe, a water outlet pipe 6 and a compressed air pipe 1 communicated with the main drainage pipe, wherein one end of the main drainage pipe is of a double-layer pipe structure, an inner pipe 3 of the double-layer pipe extends out of the side wall of an outer pipe 4 and is communicated with the water outlet pipe 6, a filter residue cover 10 is arranged at the bottom of the outer pipe 4 of the double-layer pipe, sieve holes are uniformly distributed on the filter residue cover 10, the main drainage pipe is used for extracting gas in gas disaster treatment, one end of the main drainage pipe, far away from the double-layer pipe structure, is a drainage port 8, the drainage port 8 can be connected with a gas extraction device, such as a gas pump and the like, and is used for extracting gas in a drill hole, the drainage port 8 is located on the ground of a construction place, the bottom of the double-layer pipe and the filter residue cover 10 are located at the bottom of the drill hole, meanwhile, a joint 7 can be arranged at the lower part of the double-layer pipe, the length of the double-layer pipe extending into the drill hole is conveniently connected and extended through the joint 7 according to specific construction conditions.

In at least one embodiment, the drawing main pipe is provided with an observation hole close to the double-layer pipe structure, so that the situation in the drawing main pipe can be conveniently observed.

In at least one embodiment, a first gate valve 2 is arranged at the connection position of the compressed air pipe 1 and the drainage main pipe, the first gate valve 2 is convenient to control the drainage main pipe to extract gas, a second gate valve 9 is arranged between the drainage port 8 and the double-layer pipe structure, the second gate valve 9 is convenient to control compressed air to enter the drainage main pipe and the double-layer pipe, a third gate valve 5 is arranged on the water outlet pipe 6, the third gate valve 5 is used for controlling the opening of the water outlet pipe 6, and the three gate valves are all arranged at the part, located on the ground, of the pipeline.

In at least one embodiment, filter residue cover 10 can set up to planar as shown in fig. 1, also can set up to spherical arc as shown in fig. 2, and filter residue cover 10 is the spherical arc that outwards protruding was established in this implementation, and spherical arc's setting can guarantee that the water contact area in double-deck pipe and the drilling is big and the spherical arc that outwards protruding was established can guarantee that the difficult absorption of drilling mud is in filter residue cover 10 bottom surface to guarantee that whole device normally works.

In at least one embodiment, as shown in fig. 2 and 3, the filter residue cover device further comprises a support, the support comprises an ejector rod 13 used for propping the middle of the filter residue cover 10 and three fixing rods 12 uniformly distributed in the circumferential direction, the uniform end of each fixing rod 12 is fixed on the ejector rod 13, the other end of each fixing rod 12 is fixed on the outer edge of the filter residue cover 10, the ejector rod 13 and the fixing rod 12 can support the filter residue cover 10, the filter residue cover 10 is prevented from contracting or sinking after being collided, and normal operation of the filter residue cover is guaranteed.

In at least one embodiment, the water outlet pipe 6 is integrally formed with the inner pipe 3 of the double-layer pipe, so that the double-layer pipe is convenient to process and manufacture and has good tightness.

In at least one embodiment, the double tube is welded and sealed at the junction of the inner tube 3 and the outer tube 4.

In at least one embodiment, the filter residue cover 10 is further provided with a connecting hole 11 at the outer edge, and the connecting hole 11 is arranged to facilitate the filter residue cover 10 to be fixed on the outer pipe 4 of the double-layer pipe through a connecting piece such as a screw.

Compared with the prior art, the utility model has the beneficial effects that:

While, for purposes of simplicity of explanation, the methodologies are shown and described as a series of acts, it is to be understood and appreciated that the methodologies are not limited by the order of acts, as some acts may, in accordance with one or more embodiments, occur in different orders and/or concurrently with other acts from that shown and described herein or not shown and described herein, as would be understood by one skilled in the art.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a novel take out and adopt drilling forced air drainage down, a serial communication port, including take out and put the person in charge, the outlet pipe and with take out and put the compressed air pipe of being responsible for the intercommunication, take out and put person in charge one end and be the double tube structure, the inner tube of double tube stretches out and communicates with the outlet pipe from the outer tube lateral wall, the outer tube bottom of double tube is provided with the filter residue cover, the filter residue covers the equipartition and has the sieve mesh.

2. The novel downward extraction drill hole compressed air drainage device according to claim 1, wherein the main drainage pipe is provided with an observation hole near the double-layer pipe structure.

3. The novel down gas extraction drill hole compressed air drainage device according to claim 2, wherein one end of the pumping main pipe, which is far away from the double-layer pipe structure, is a pumping opening.

4. The novel down extraction drill hole compressed air drainage device according to any one of claims 1-3, wherein a first gate valve is arranged at the joint of the compressed air pipe and the drainage main pipe, a second gate valve is arranged between the drainage port and the double-layer pipe structure, and a third gate valve is arranged on the water outlet pipe.

5. The novel downward extraction drill hole compressed air drainage device according to claim 4, wherein the filter residue cover is in a shape of a spherical arc protruding outwards.

6. The novel down extraction drill hole compressed air drainage device is characterized by further comprising a support, wherein the support comprises an ejector rod used for jacking the middle of the filter residue cover and three fixing rods which are uniformly distributed in the circumferential direction, one end of each fixing rod is fixed on the ejector rod, and the other end of each fixing rod is fixed at the outer edge of the filter residue cover.

7. The novel down extraction drill hole compressed air drainage device as claimed in any one of claims 1-3 or 5, wherein the water outlet pipe and the inner pipe of the double-layer pipe are integrally formed.

8. The novel down extraction drill hole compressed air drainage device according to any one of claims 1-3 or 5, wherein the joint of the inner pipe and the outer pipe of the double-layer pipe is welded and sealed.

9. The novel downward extraction drill hole compressed air drainage device according to claim 6, characterized in that a connecting hole is further formed in the outer edge of the filter residue cover.