Underground coal mine beam tube gas production waterproof device

Abstract

The utility model discloses an underground coal mine beam tube gas production waterproof device, which relates to the technical field of beam tube detection and comprises a three-way tube, an inclined tube of the three-way tube is provided with a mounting plate and a top sealing plate, a through air hole is formed in the side wall of the inclined tube between the top sealing plate and the mounting plate, a beam tube is inserted into the three-way tube, and the top end of the beam tube is higher than the air hole. And a water leakage hole is formed in the three-way pipe below the air hole in a penetrating manner. The device is installed in a goaf, gas is taken through the vent holes, when accumulated water is too much and enters the three-way pipe from the vent holes, the accumulated water enters the three-way pipe below the installation plate from the first water leakage hole and then leaks out of the three-way pipe from the second water leakage hole, and it is prevented that the gas taking is affected by continuous accumulated water in the three-way pipe.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of beam tube detection, especially relates to a coal mine underground beam tube gas collecting waterproof device. BACKGROUND

[0002] Most of the spontaneous combustion of residual coal occurs in the goaf, when the thickness of the floating coal in the goaf reaches a certain value, under the condition of appropriate air leakage, sufficient oxygen is provided and the heat generated by the air leakage will not take away the floating coal, the heat accumulation of the floating coal itself will gradually increase the temperature of the coal, and after a period of time, the temperature of the coal will reach the spontaneous combustion temperature point, which will cause the spontaneous combustion of the residual coal in the goaf. According to different judgment indexes, the spontaneous combustion danger zone of the goaf is divided into suffocation zone, oxidation and temperature rising zone and heat dissipation zone. At present, most of the mines use the method of combining field measurement and numerical simulation to determine the spontaneous combustion danger zone of the goaf, and the probability of spontaneous combustion of the residual coal in the oxidation and temperature rising zone of the goaf is relatively large, so it needs to be paid attention to, and after determining the range of the oxidation and temperature rising zone, the corresponding measures can be taken to effectively prevent the spontaneous combustion of the residual coal.

[0003] If the goaf occurs coal spontaneous combustion disaster, the concentration of some harmful gases will increase, so real-time monitoring of the gas concentration in the goaf is an effective means to prevent coal spontaneous combustion, but due to the special environment in the goaf, some precision instruments cannot work normally, and collapse may occur in the goaf, so now the pre-buried beam tube is generally used to analyze the "three zones" and the internal gas of the goaf, the beam tube is generally placed in the steel pipe, and then the beam tube is stretched out through the tee pipe, such as the application number CN202320296734.3 disclosed a kind of device for embedding beam tube behind support in fully mechanized coal mining face, but due to the fact that the goaf is usually very deep in water, water is often extracted during the gas extraction process, and gas cannot be extracted. CONTENT OF THE UTILITY MODEL

[0004] In view of the problems mentioned in the background art, the purpose of the utility model is to provide a coal mine underground beam tube gas collecting waterproof device to solve the problems mentioned in the above background art.

[0005] The above technical purpose of the utility model is realized by the following technical scheme:

[0006] A coal mine underground beam tube gas collecting waterproof device, comprising a tee pipe, an installation plate and a top sealing plate are installed on the inclined pipe of the tee pipe, there are through air holes on the side wall of the inclined pipe between the top sealing plate and the installation plate, the tee pipe is inserted with a beam tube, the top end of the beam tube is higher than the air hole, and a water leakage hole is provided through the tee pipe below the air hole.

[0007] As a preferred technical scheme, the top sealing plate is installed at the top end of the inclined pipe.

[0008] As a preferred technical scheme, a through hole is provided on the installation plate, and the beam tube passes through the through hole.

[0009] As a preferred technical solution, the inner wall of the through hole is filled with a sealing agent between the outer wall of the beam tube.

[0010] As a preferred technical solution, the beam tube is parallel to the side wall of the tee pipe.

[0011] As a preferred technical solution, it further comprises a steel pipe, and the two ends of the horizontal pipe of the tee pipe are fixedly connected with a group of steel pipes through flanges, respectively.

[0012] As a preferred technical solution, the beam tube extends from the inclined pipe into the horizontal pipe and the steel pipe.

[0013] As a preferred technical solution, the water leakage hole comprises a water leakage hole one penetratingly arranged on the mounting plate and a water leakage hole two penetratingly arranged on the horizontal pipe of the tee pipe.

[0014] As a preferred technical solution, the water leakage hole two is arranged at the bottom end of the horizontal pipe.

[0015] Beneficial effects

[0016] The device is installed in the goaf, and gas is taken through the gas permeation hole. When there is too much accumulated water, the accumulated water enters the tee pipe from the gas permeation hole, and then enters the tee pipe below the mounting plate from the water leakage hole one, and then leaks out of the tee pipe from the water leakage hole two, thereby preventing the continuous accumulation of water in the tee pipe from affecting gas taking.

[0017] Additional aspects and advantages of the present application will be given in part in the following description, and will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A perspective view of a coal mine underground beam tube gas extraction waterproof device is provided.

[0019] Figure 2 A top view of a coal mine underground beam tube gas extraction waterproof device is provided.

[0020] Figure 3 For Figure 2 A sectional view along the A-A direction.

[0021] Figure 4 For Figure 3 An enlarged view of the middle B.

[0022] Reference signs: 1, steel pipe; 2, tee pipe; 21, horizontal pipe; 22, inclined pipe; 3, flange; 4, beam tube; 5, mounting plate; 6, top sealing plate; 7, gas permeation hole; 8, water leakage hole one; 9, water leakage hole two; 10, through hole. DETAILED DESCRIPTION

[0023] Embodiments of the present application will be described in detail below, examples of which are represented in the drawings, wherein identical or similar symbols represent identical or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are intended to explain the present application, and cannot be understood as a limitation on the present application.

[0024] Embodiment 1

[0025] Reference Figures 1 to 4 The coal mine underground beam pipe gas extraction waterproof device provided by the embodiment comprises a steel pipe 1 and a tee pipe 2, two ends of a cross pipe 21 of the tee pipe 2 are fixedly connected with a group of steel pipes 1 through flanges 3 respectively, a top end of an inclined pipe 22 of the tee pipe 2 is provided with a top sealing plate 6, and the inclined pipe 22 is provided with a mounting plate 5.

[0026] A through hole 10 is formed in the mounting plate 5, and a beam pipe 4 is inserted into the through hole 10, the beam pipe 4 extends from the inclined pipe 22 to the cross pipe 21 and the steel pipe 1, a top end of the beam pipe 4 is higher than the gas permeable hole 7, and a sealing agent is filled between an inner wall of the through hole 10 and an outer wall of the beam pipe 4.

[0027] Preferably, the beam pipe 4 is parallel to the side wall of the tee pipe 2.

[0028] A plurality of water leakage holes one 8 penetrating through the mounting plate 5 are formed in the mounting plate 5, and a plurality of water leakage holes two 9 penetrating through the cross pipe 21 are formed in a bottom end of the cross pipe 21.

[0029] The device is installed in a goaf, gas is extracted through the gas permeable hole 7, when there is too much water, the water enters the tee pipe 2 from the gas permeable hole 7, and then the water enters the tee pipe 2 below the mounting plate 5 from the water leakage hole one 8, and then the water leaks out of the tee pipe 2 from the water leakage hole two 9, thereby preventing the continuous water accumulation in the tee pipe 2 from affecting gas extraction.

[0030] It should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0031] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined as "first", "second", etc. can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0032] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] In the present application, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0034] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A coal mine underground beam pipe gas extraction waterproof device, comprising a tee pipe (2), characterized in that: The inclined pipe (22) of the tee pipe (2) is provided with a mounting plate (5) and a top sealing plate (6), the inclined pipe (22) is provided with a through air hole (7) on the side wall between the top sealing plate (6) and the mounting plate (5), the tee pipe (2) is inserted with a bundle pipe (4), the top end of the bundle pipe (4) is higher than the through air hole (7), and a water leakage hole is provided on the tee pipe (2) below the through air hole (7).

2. The coal mine underground beam pipe gas extraction waterproof device according to claim 1, characterized in that: The top sealing plate (6) is mounted at the top end of the inclined pipe (22).

3. The coal mine underground beam pipe gas extraction waterproof device according to claim 1, characterized in that: The mounting plate (5) is provided with a through hole (10), and the bundle pipe (4) passes through the through hole (10).

4. The coal mine underground beam pipe gas extraction waterproof device according to claim 3, characterized in that: The inner wall of the through hole (10) and the outer wall of the bundle pipe (4) are filled with a sealing agent.

5. The coal mine underground beam pipe gas extraction waterproof device according to claim 1, characterized in that: The bundle pipe (4) is parallel to the side wall of the tee pipe (2).

6. The coal mine underground beam pipe gas extraction waterproof device according to claim 1, characterized in that: The tee pipe (2) is further provided with a steel pipe (1), and the horizontal pipe (21) of the tee pipe (2) is fixedly connected with a group of steel pipes (1) through flanges (3) at both ends.

7. The coal mine underground beam pipe gas extraction waterproof device according to claim 6, characterized in that: The bundle pipe (4) extends from the inclined pipe (22) to the horizontal pipe (21) and the steel pipe (1).

8. The coal mine underground beam pipe gas extraction waterproof device according to claim 1, characterized in that: The water leakage hole comprises a water leakage hole one (8) provided on the mounting plate (5) and a water leakage hole two (9) provided on the horizontal pipe (21) of the tee pipe (2).

9. The coal mine underground beam pipe gas extraction waterproof device according to claim 8, characterized in that: The water leakage hole two (9) is provided at the bottom end of the horizontal pipe (21).

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