Tracer gas release device for external air leakage test of coal mine

Abstract

The utility model discloses a tracer gas release device for external air leakage test of a coal mine, which relates to the field of mine air leakage test and comprises a platform and telescopic supports arranged on two sides of the platform, the platform is provided with an air inlet, a console and a power supply module, a wire spool is arranged below the platform, and the wire spool is connected with the platform. A steering engine is arranged below the wire spool, a probe is arranged on the side, away from the wire spool, of the steering engine, and an illuminating lamp and a micro camera are arranged on the other side of the probe; an illuminating lamp and a micro camera on the probe are controlled through a console, and the closing condition of an air leakage channel between the earth surface and an underground goaf is observed; the probe has high structural strength and stability, the orientation of the probe is controlled by adjusting the angle of the steering engine, the release pipe can accurately face the extending direction of the air leakage channel, it is ensured that tracer gas released by the release opening can enter the air leakage channel and is not interfered by the external atmosphere, and the success rate that the tracer gas is detected underground after being released is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of mine air leakage test, especially a tracer gas release device for coal mine external air leakage test. BACKGROUND

[0002] After the working face is mined, a large area goaf is formed, for the shallow buried coal seam, after the goaf collapses, the upper part appears the caving zone, the fractured zone and the curved subsidence zone, sometimes even reaching the ground surface, the overburden strata above the goaf are displaced and deformed to form the concave basin, the funnel-shaped cave and the step-shaped fracture, the ground subsidence not only affects the surface environment, but also connects the goaf with the ground surface, leading to the goaf air leakage, and the external air leakage mainly refers to the air leakage formed by the mine ventilation system communicating with the ground atmosphere through the cracks, in the air leakage process, oxygen is continuously transported to the goaf along the air leakage channel, thereby changing the goaf flow field and causing the coal spontaneous combustion.

[0003] The tracer gas method is one of the main methods for external air leakage test, through the ground survey, it is found that there are cracks in the subsidence area, if the cracks are suspected to be produced in the mining process of the underground coal seam and have the changing phenomenon, they are considered as suspected air leakage points, the release points of the tracer gas are selected near the cracks, if the conditions allow, the tracer gas can also be released in the ground exploration, grouting and extraction drilling, and then the tracer gas detection is carried out at the specific position underground to determine whether it is the air leakage point and estimate the air leakage speed.

[0004] However, these connecting channels between the ground surface and the goaf are often formed for a long time, and the internal collapse may occur, on the one hand, it is difficult to determine the connection with the goaf, and on the other hand, it is difficult to stretch the release port into the channel, resulting in a large discount of the release effect.

[0005] Therefore, the tracer gas release device for coal mine external air leakage test is provided to solve the above problems. Utility model content

[0006] The utility model aims at providing a tracer gas release device for coal mine external air leakage test, which can stretch the release port into the internal channel of the ground surface air leakage, and can observe the collapse of the internal channel.

[0007] In order to achieve the above object, the utility model provides a tracer gas release device for coal mine external air leakage test, which comprises a platform and telescopic supports arranged on both sides of the platform, an air inlet, a control console and a power supply module are arranged on the platform, a reel is arranged below the platform, a rudder is arranged below the reel, a probe is arranged on the side of the rudder away from the reel, and an illuminating lamp and a miniature camera are arranged on the other side of the probe.

[0008] Preferably, the reel is provided with two, and a release pipe is arranged between the two reels in a spiral shape.

[0009] Preferably, the air inlet is fixedly connected with the platform through a pipe clamp, and one end of the release pipe is connected with the air inlet through the reel and the platform.

[0010] Preferably, one end of the release pipe close to the air inlet is provided with a line outlet, and the control console is provided with a USB serial port on one side close to the air outlet.

[0011] Preferably, a line is arranged in the release pipe, one end of the line is connected with the USB serial port through the line outlet, and the other end of the line is connected with the steering engine.

[0012] Preferably, the line comprises a steel wire rope, a signal line and a power line, and the steering engine is hung on the steel wire rope.

[0013] Preferably, the probe is provided in a tapered geometric structure, the front end of the probe is provided in a round head structure, the round head structure is provided in a smooth curved surface, and the diameter of the probe gradually decreases from the front end of the probe to the tail end of the probe.

[0014] Preferably, the probe is fixedly connected with the driving shaft of the steering engine through a spline, and the probe is provided with a counterweight close to the steering engine, and the counterweight is arranged in the probe.

[0015] Therefore, the tracer gas release device for testing external air leakage of coal mines has the following beneficial effects:

[0016] (1) The lighting lamp and the miniature camera on the probe can be controlled through the signal line, and the closure of the air leakage channel between the ground and the goaf can be observed.

[0017] (2) The angle of the probe can be adjusted by the steering engine to make the release pipe accurately extend into the air leakage channel, so that the tracer gas released from the release port can enter the inside of the air leakage channel and is not disturbed by the external atmosphere, and the success rate of releasing the tracer gas is improved.

[0018] The technical scheme of the utility model will be further described in detail below with reference to the drawings and embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural diagram of the tracer gas release device for testing external air leakage of coal mines;

[0020] Figure 2The utility model relates to a probe schematic drawing of tracer gas releasing device for coal mine external air leakage test.

[0021] Among them: 1, platform, 2, telescopic support, 3, air inlet, 4, control console, 5, power module, 6, reel, 7, probe, 8, rudder, 9, light, 10, miniature camera, 11, release pipe, 12, USB serial port, 13, line, 14, line outlet, 15, round head structure, 16, pipe clamp. DETAILED DESCRIPTION

[0022] The technical scheme of the utility model is further explained below by means of drawings and embodiments.

[0023] Unless otherwise defined, the technical terms or scientific terms used in the utility model should be understood as the usual meaning understood by the person skilled in the art to which the utility model belongs. The "first", "second" and similar words used in the utility model do not represent any order, quantity or importance, but are only used to distinguish different components. "Include" or "contain" and similar words mean that the elements or objects before the word cover the elements or objects listed after the word and their equivalents, and do not exclude other elements or objects. "Connection" or "connected" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0024] EMBODIMENT

[0025] As Figure 1 The utility model provides a kind of tracer gas releasing device for coal mine external air leakage test, including platform 1 and the telescopic support 2 being set in the both sides of platform 1, platform 1 is provided with air inlet 3, control console 4 and power module 5, control console 4 can control the switch and brightness of light 9, control the angle of rudder 8, show the shooting picture of miniature camera 10, power module 5 can realize charge and discharge, simultaneously, power supply is provided to rudder 8, light 9 and miniature camera 10;

[0026] Platform 1 below is provided with reel 6, reel 6 is set to two, release pipe 11 is arranged between the two reel 6, and release pipe 11 is arranged in spiral between the two reel 6;

[0027] Air inlet 3 is fixedly connected between platform 1 by pipe clamp 16, and one end of release pipe 11 is connected with air inlet 3 by passing through reel 6 and platform 1 respectively;

[0028] A probe 7 is arranged below the winding reel 6, a rudder 8 is arranged on the side close to the winding reel 6 of the probe 7, the direction of the probe 7 can be adjusted by controlling the angle of the rudder 8, a lighting lamp 9 and a miniature camera 10 are arranged on the other side of the probe 7, the probe 7 is arranged in a tapered geometric structure, the front end of the probe 7 is arranged in a round head structure 15, the round head structure 15 is arranged in a smooth curved surface, the diameter of the probe 7 gradually decreases from the front end of the probe 7 to the end of the probe 7;

[0029] The probe 7 is fixedly connected with the driving shaft of the rudder 8 through a spline, a counterweight is arranged on the side close to the rudder 8 of the probe 7, and the counterweight is arranged in the interior of the probe 7 to provide higher structural strength and stability;

[0030] The release pipe 11 is arranged with a line 13, the line 13 includes a steel wire rope, a signal line and a power line.

[0031] One end of the release pipe 11 close to the air inlet 6 is arranged with a line outlet 14, the control console 4 close to the air outlet 6 is arranged with a USB serial port 12, one end of the line 13 passes through the line outlet 14 and is connected with the USB serial port 12, the communication between the control console 4 and the rudder 8, the lighting lamp 9 and the miniature camera 10 is realized through the signal line, the sealing treatment is made between the line outlet 14 and the line 13, the other end of the line 13 is connected with the rudder 8, the rudder 8 is hung on the steel wire rope and is controlled through the signal line, so as to provide the traction for the probe 7.

[0032] The working principle of the tracing gas release device for the external air leakage test of the coal mine is as follows:

[0033] Firstly, the telescopic support 2 is unfolded, so that the device can be horizontally placed above the air leakage passage, then the air inlet 3 is connected to the gas cylinder with a pressure reducing valve, the control console 4 is turned on, the probe 7 is inserted into the air leakage passage, the release pipe 11 is manually released from the winding reel 6, the lighting lamp 9 is turned on through the control console 4 when the winding reel 6 is released, the monitoring image of the miniature camera 10 is observed through the control console 4, so as to observe the closure of the inside of the air leakage passage, when the air leakage passage is bent, the release pipe 11 is paused to be released downward, the rudder 8 is controlled through the control console 4, so as to adjust the angle of the probe 7, the probe 7 is aligned with the extension direction of the air leakage passage, so as to continue to release the release pipe 11 downward, so that the probe 7 can be inserted into the inside of the air leakage passage, at this time, the tracing gas is released, so as to greatly improve the probability that the tracing gas is detected in the roadway after entering the goaf.

[0034] Therefore, the utility model discloses a kind of tracer gas release device for coal mine external air leakage test with the above structure, the lighting lamp and miniature camera on probe are controlled by console, the closure of air leakage passage between surface and underground goaf is observed;Probe is controlled to be oriented by adjusting the angle of steering engine, so that release pipe can be accurately oriented to extend direction of air leakage passage, ensure that the tracer gas released by release port can enter inside air leakage passage, not be interfered by external atmosphere, improve the success rate of tracer gas release.

[0035] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the utility model, but not to limit them, although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that: its still can modify or equivalent replace the technical solutions of the utility model, and these modifications or equivalent replacements also cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the utility model.

Claims

1. A tracer gas release device for use in external air leakage testing of a coal mine, characterised in that, The utility model relates to a platform and setting telescopic support on both sides of platform, the platform is provided with air inlet, control cabinet and power supply module, the platform below is provided with reel, the reel below is provided with steering wheel, the steering wheel is provided with probe away from one side of reel, the other side of probe is provided with illuminating lamp and micro video camera.

2. The tracer gas release device for testing air leakage outside of a coal mine according to claim 1, wherein, The reel is provided with two, and a release pipe is arranged between the two reels, the release pipe is arranged in a spiral shape between the two reels.

3. The tracer gas release device for testing air leakage outside of a coal mine according to claim 2, wherein, The air inlet and the platform are fixedly connected through a pipe clamp, one end of the release pipe passes through the reel and the platform and is connected with the air inlet.

4. The tracer gas release device for testing air leakage outside of a coal mine according to claim 2, wherein, One end of the release pipe close to the air inlet is provided with a line outlet, and one side of the control cabinet close to the air inlet is provided with a USB serial port.

5. The tracer gas release device for testing air leakage outside of a coal mine according to claim 4, wherein, A line is arranged in the release pipe, one end of the line passes through the line outlet and is connected with the USB serial port, and the other end of the line is connected with the steering wheel.

6. The tracer gas release device for testing air leakage outside of a coal mine according to claim 5, wherein, The line includes a steel wire rope, a signal line and a power line, and the steering wheel is hung on the steel wire rope.

7. The tracer gas release device for testing air leakage outside of a coal mine according to claim 1, wherein, The probe is provided with a tapered geometric structure, the front end of the probe is provided with a round head structure, the round head structure is provided with a smooth curved surface, and the diameter of the probe gradually decreases from the front end of the probe to the tail end of the probe.

8. The tracer gas release device for testing air leakage outside of a coal mine according to claim 1, wherein, The probe is fixedly connected with the driving shaft of the steering wheel through a spline, and a counterweight is arranged on one side of the probe close to the steering wheel. The counterweight is arranged in the probe.

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