CN113982691A - Underground harmful gas detection and early warning system for coal mine - Google Patents
Underground harmful gas detection and early warning system for coal mine Download PDFInfo
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Abstract
The invention belongs to the technical field of coal mine operation safety systems, and particularly relates to a coal mine underground harmful gas detection early warning system which comprises a controller and a detection early warning device, wherein the controller is used for controlling the detection early warning device to perform detection and early warning; the detection early warning device is used for detecting and alarming harmful gas in the underground coal mine, and the detection early warning device comprises: the gas detection device is arranged in the detection early warning instrument; the gas detection device is used for detecting harmful gas; one end of the detection early warning instrument is made of soft materials; one end of the interior of the detection early warning instrument, which is close to the soft material, is electrically connected with a vibrator; the vibrator is in communication connection with the mine dispatching room; the wearing belts are arranged on two sides of the detection early warning instrument; the invention solves the problems that the underground space is relatively closed, and the mechanical operation noise is very large; the earbuds can be worn by coal miners during operation, and the sound effect of the sound early warning of the detection early warning instrument can be reduced during mechanical operation.
Description
Technical Field
The invention belongs to the technical field of coal mine operation safety systems, and particularly relates to a coal mine underground harmful gas detection and early warning system.
Background
Coal is known as black gold by people, industrial food is one of main energy sources used in the human world since the eighteenth century, and since the twenty-first century, although the value of coal is not as high as before, coal is one of indispensable energy sources for production and life of people at present and in a long time in the future, the supply of coal is also related to the stability of the development of the industry of China and the aspects of the whole society, the supply safety problem of coal is also the most important part in the energy safety of China, and when coal mining is carried out, the coal mining is often required to go deep underground, wherein toxic gases such as gas are often accompanied in mines, so that coal workers are usually required to detect the toxic gases in the mines before entering the mines.
The method has the advantages that strong noise is generated in a plurality of main production processes of underground coal mine drilling, blasting, coal gathering, ventilation, transportation and the like, the noise mainly comes from a fan, an electric coal drill, a rock drilling machine, a coal softener and the like, the sound pressure level is 82-130 d (A), along with the height development of the mechanization level of coal mine production, underground noise sources are more and more, the noise intensity and harm of the drilling process are particularly prominent, in the coal mine production process, the rock drilling machine is a mobile production device which is most common in underground excavation working face application and has the highest noise, the rock drilling machine is a main noise source, the noise level generated in the general drilling process exceeds 110dB, and other production processes of the coal mine can also generate stronger noise.
Although the gas detector in the prior art can realize the early warning effect; but the underground space is relatively closed, the noise of mechanical operation is large, and the sound is amplified by 1.5 to 2 times compared with the sound in the ordinary environment because the sound is resonated in a closed space; the coal miners can wear the earplugs during operation, and the sound effect of the sound early warning of the detection early warning instrument is reduced during mechanical operation; based on the technical scheme, the invention designs the underground harmful gas detection and early warning system for the coal mine, so as to solve the technical problems in the prior art.
Disclosure of Invention
In order to make up for the deficiency of the prior art, solve the relative airtight of the underground space in the prior art, the mechanical operation is very noisy at the same time, the sound produces resonance in a closed space, must amplify 1.5-2 times than the sound in the ordinary environment; the invention provides a harmful gas detection and early warning system in a coal mine.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a coal mine underground harmful gas detection early warning system, which comprises a controller and a detection early warning device, wherein the controller is connected with the detection early warning device; the detection early warning device is used for detecting and alarming harmful gas in the underground coal mine, and the detection early warning device comprises:
the gas detection device is arranged in the detection early warning instrument; the gas detection device is used for detecting harmful gas; one end of the detection early warning instrument is made of soft materials; one end of the interior of the detection early warning instrument, which is close to the soft material, is electrically connected with a vibrator; the vibrator is in communication connection with the mine dispatching room;
the wearing belts are arranged on two sides of the detection early warning instrument;
forming a detection network among the single detection early warning instruments under the coal mine; only starting one gas detection device within a preset distance, and alternately replacing one running gas detection device at intervals of a detection period; the detection network counts the detection data of each underground area of the coal mine, and marks the detection data of the underground ventilation area of the coal mine.
Preferably, the upper end of the wearing belt is fixedly connected with an arc-shaped elastic strip.
Preferably, the detection early warning instrument is rotatably connected with massage balls at the position of the soft material and on the inner side of the wearing belt.
Preferably, the upper end face of the detection early warning instrument and one end far away from the soft material are fixedly connected with shock pads; the shock pad can be used for adsorbing dust in the air.
Preferably, the detection early warning instrument starts all gas detection devices in the underground coal mine when the detection data is close to the early warning threshold value; and judging the abnormal reason by analyzing the gas condition of each position point.
Preferably, the detection early warning instrument is electrically connected with a positioning device inside; the positioning device is in communication connection with a control terminal.
Preferably, the control terminal is electrically connected with a voice broadcasting device through a positioning device; the detection early warning instrument is used for powering off the gas detection device after the early warning signal is generated.
Preferably, both sides inside the detection early warning instrument are electrically connected with a light emitting circuit; the two sides of the detection early warning instrument are made of transparent materials; the rectangular array on the light-emitting circuit is provided with a group of light-emitting diodes.
Preferably, the light-emitting circuit is electrically connected with a head lamp of a coal mine worker.
Preferably, the detection early warning instruments of the underground coal miners are in communication connection; the communication signal on the well is transmitted to the underground through the wireless base stations which are sequentially arranged on the transporter.
The invention has the following beneficial effects:
1. compared with the traditional technical scheme, the underground harmful gas detection and early warning system for the coal mine avoids hearing loss of coal mine workers in the early warning process of evacuation notification, and enables the coal mine workers to sense early warning prompts more quickly and evacuate quickly; the early warning effect is better when the wearing is comfortable; the working effect of the underground harmful gas detection and early warning system for the coal mine is improved.
2. According to the coal mine underground harmful gas detection early warning system, the positioning device is arranged, the control terminal comprises a circuit diagram inside a coal mine, and the circuit diagram of the control terminal is updated in real time according to the movement of the positioning device of a coal mine worker; if the coal mine workers are trapped underground when not evacuated in time, the external rescue personnel can confirm the positions of the coal mine workers through the positioning device and then rescue according to the circuit diagram of the control terminal; so that the rescue time can be shortened.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is an internal construction diagram of the present invention;
FIG. 2 is a flow chart of the operation of the present invention;
fig. 3 is a total evacuation time histogram;
FIG. 4 is a histogram of reaction times;
in the figure: 1. detecting an early warning instrument; 2. a gas detection device; 3. a vibrator; 4. wearing a belt; 5. an arc-shaped elastic strip; 6. A massage ball; 7. a shock pad; 8. a positioning device; 9. a voice broadcasting device; 10. a light emitting circuit.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 4, the coal mine underground harmful gas detection and early warning system comprises a controller and a detection and early warning device; the detection early warning device is used for detecting and alarming harmful gas in the underground coal mine, and the detection early warning device comprises:
the gas detection early warning device comprises a detection early warning device 1, wherein a gas detection device 2 is arranged inside the detection early warning device 1; the gas detection device 2 is used for detecting harmful gas; one end of the detection early warning instrument 1 is made of soft materials; one end of the interior of the detection early warning instrument 1, which is close to the soft material, is electrically connected with a vibrator 3; the vibrator 3 is in communication connection with the mine dispatching room;
the wearing belt 4 is arranged on two sides of the detection early warning instrument 1;
forming a detection network among the detection early warning instruments 1 under a single coal mine; only one gas detection device 2 is started in a preset mine area, and one running gas detection device 2 is replaced in turn every other detection period; the detection network counts the detection data of each area under the coal mine, and marks the detection data of the ventilation area under the coal mine;
when the underground sound-amplifying type vibration isolation device works, the underground space is relatively closed, meanwhile, the noise of mechanical operation is large, and the sound generates resonance in a closed space and is amplified by 1.5-2 times compared with the sound in the ordinary environment; the coal miners can wear the earplugs during operation, and the sound early warning of the detection early warning instrument 1 reduces the sound effect during mechanical operation;
the invention arranges a vibrator 3; a coal mine worker fixes the detection early warning instrument 1 at the waist by wearing the belt 4 before the underground operation, and in the underground working process, the gas detection device 2 in the detection early warning instrument 1 detects harmful gas in the underground working environment in real time; only one gas detection device 2 is started within a preset range and replaced within each period, so that the electric quantity of the detection early warning instrument 1 of the underground miner of the coal mine can last for a longer time, meanwhile, the detection data of different positions are counted and analyzed through the replacement of the detection position in the detection network, and part of the detection data is marked through the detection network, so that the gas condition of a large-range area under the coal mine can be known more clearly; analyzing and comparing the detection data of the ventilation area marks, knowing the ventilation conditions of different ventilation areas and repairing the ventilation areas in time; when the gas detection device 2 detects that the concentration value of harmful gas in the pit exceeds a preset range, the gas detection device 2 transmits a signal to the controller, the controller controls the vibrator 3 to vibrate, and the vibration of the vibrator 3 is transmitted to the body part of coal mine personnel through the soft material to remind the coal mine personnel, so that the coal mine personnel can quickly sense and evacuate as soon as possible; meanwhile, the controller transmits a signal of the vibration of the vibrator 3 to the mine dispatching room, and the rescue team and the medical personnel in the mine dispatching room immediately arrive at the rescue site for rescue, so that the situation that coal mine personnel are too nervous to inform the mine dispatching room in time when withdrawing is prevented, and more time is gained for rescue actions; the detection early warning instrument 1 is a part for directly measuring detection information and transmitting an early warning signal in the detection early warning system, the detection effect and the early warning effect of the detection early warning instrument 1 play an important role in the working effect of the detection early warning system, and the detection early warning instrument 1 is worn on the body of each coal mine worker and can quickly transmit the detection signal when the coal mine worker works;
the vibrator 3 is arranged, so that the hearing loss of coal miners in the early warning process of informing the evacuation is avoided, and the coal miners can more quickly sense the early warning prompt and evacuate quickly; the working effect of the underground harmful gas detection and early warning system for the coal mine is improved.
As an embodiment of the invention, the upper end of the wearing belt 4 is fixedly connected with an arc-shaped elastic strip 5; when the bending-down device works, a coal mine worker needs to bend down during working, and the belly of the bending-down device is abutted against the arc-shaped elastic strip 5 by arranging the arc-shaped elastic strip 5 during the bending-down operation of the coal mine worker; the arc-shaped elastic strip 5 enables coal miners to feel more comfortable when bending down, and meanwhile, the belly of the coal miners can be prevented from being extruded and injured by wearing the belt 4; the working effect of the underground harmful gas detection and early warning system for the coal mine is improved.
As an embodiment of the present invention, the detection early warning device 1 is rotatably connected with massage balls 6 at the position of the soft material and at the inner side of the wearing belt 4; when the waist belt massager works, the massage balls 6 are arranged, so that the contact area between the wearing belt 4 and the waist of a coal mine worker is reduced, the wearing belt 4 is prevented from being tightly attached to the abdomen for a long time to cause discomfort to the body, and the whole waist and abdomen can be massaged during the waist bending operation of the coal mine worker; meanwhile, the vibrator 3 drives the massage ball 6 to vibrate in the early warning process, so that the perception of coal miners is higher; the working effect of the underground harmful gas detection and early warning system for the coal mine is improved.
As an implementation manner of the invention, the upper end surface of the detection early warning instrument 1 and one end far away from the soft material are fixedly connected with a shock pad 7; the shock absorption pad 7 can be used for absorbing dust in the air; during working, small coal mine stones fall off to easily damage the detection early warning instrument 1 in the working process of coal mine workers, and the shock absorption pad 7 is arranged, so that the coal mine stones fall on the shock absorption pad 7 in the working process to protect the detection early warning instrument 1 and prevent the shell of the detection early warning instrument 1 from being damaged; meanwhile, the damping pad 7 is made of superfine fiber materials, so that dust in the air around the underground gas detection device 2 can be adsorbed, and the detection accuracy of the gas detection device 2 is ensured; the working effect of the underground harmful gas detection and early warning system for the coal mine is improved.
As an embodiment of the invention, the detection early warning instrument 1 starts all gas detection devices 2 in the underground coal mine when the detection data is close to the early warning threshold value; judging the abnormal reason by analyzing the gas condition of each position point; when the early warning device works, when the detection data of the early warning detector 1 in the work is close to the early warning range, all the gas detection devices 2 in the mine area are started, gas at each point is detected after the gas detection devices are started, and when the gas value at each point is continuously increased, the detection early warning device 1 gives early warning to remind coal miners to evacuate in advance; if the gas detection is abnormal at one point, coal miners are reminded to investigate and repair the point, and the early warning effect is optimized; the working effect of the underground harmful gas detection and early warning system for the coal mine is improved.
As an embodiment of the present invention, the detection early warning apparatus 1 is electrically connected to a positioning device 8; the positioning device 8 is in communication connection with a control terminal; when the coal mine control system works, the positioning device 8 is arranged, the positioning device 8 transmits an electric signal to the control terminal through the digital transmission system, the control terminal contains a circuit diagram inside a coal mine, and the circuit diagram of the control terminal is updated in real time according to the movement of the positioning device 8 of a coal mine worker; if the coal mine workers are trapped underground when not evacuated in time, the external rescue personnel can confirm the positions of the coal mine workers through the positioning device 8 and then rescue according to the circuit diagram of the control terminal; the rescue time can be shortened, and the record of successful rescue of coal miners is improved; the working effect of the underground harmful gas detection and early warning system for the coal mine is improved.
As an embodiment of the present invention, the control terminal is electrically connected to a voice broadcasting device 9 through a positioning device 8; the detection early warning instrument 1 is used for powering off the gas detection device 2 after an early warning signal is generated; when the voice broadcasting device 9 is arranged during work, the voice broadcasting device prompts the coal mine workers to evacuate the route through the monitored real-time situation of the underground environment of the coal mine by the control terminal in the process of evacuating the coal mine workers, so that the situation that the selected route of the coal mine workers collapses in the evacuating process is avoided, and the evacuating time is wasted; when the coal miners meet a bifurcation road in the evacuation process and need voice prompt, the coal miners are far away from a mechanical operation area, so that the voice of the voice prompt does not need to cover the voice of the mechanical operation, and the coal miners can hear the voice without great damage to the hearing of the coal miners; the gas detection device 2 is powered off in the process of evacuating coal mine workers, so that the electric quantity in the detection early warning instrument 1 can be more used for the coal mine workers to contact with the control terminal and for the voice broadcast device 9 to work when evacuating the coal mine workers; the working effect of the underground harmful gas detection and early warning system for the coal mine is improved.
As an embodiment of the present invention, both sides of the inside of the detection early warning apparatus 1 are electrically connected to a light emitting circuit 10; two sides of the detection early warning instrument 1 are made of transparent materials; a group of light emitting diodes is arranged on the light emitting circuit 10 in a rectangular array; when the lighting device works, the lighting circuit 10 is arranged, and the lighting circuit 10 can emit lighting light to provide illumination for coal miners in the normal working process; when the gas detection device 2 detects that the amount of harmful gas in the environment exceeds the standard and needs to be evacuated, the light-emitting circuit 10 flashes red light to prompt coal miners to evacuate as soon as possible, the red light flashed by the light-emitting circuit 10 gives the coal miners a sense of urgency in cooperation with the vibration of the vibrator 3, and the coal miners can evacuate quickly after sensing evacuation signals; by arranging the light emitting diodes in the rectangular array, the controller can arrange the evacuation sequence of coal mine workers according to the positioning information of the positioning device 8 in the evacuation process, then the light emitting diodes on the light emitting circuit 10 display the digits of the bit columns and project the digits to the underground wall of the coal mine through the detection early warning instrument 1, the coal mine workers adjust the evacuation formation according to the arrangement serial numbers of the coal mine workers and the arrangement serial numbers of the coal mine workers ahead in the evacuation process, and the serial numbers are ordered according to the positioning information of the positioning device 8, so the evacuation formation adjustment is more convenient; the gold time of the evacuation is prevented from being influenced by falling caused by disorder in the evacuation process; the working effect of the underground harmful gas detection and early warning system for the coal mine is improved.
As an embodiment of the present invention, the light emitting circuit 10 is electrically connected to a head lamp of a coal miner; when the gas detection device 2 detects abnormality and needs early warning, the light-emitting circuit 10 and the head lamp flicker synchronously, and the flickering position of the head lamp can be more easily noticed by coal miners at the front ends of the coal miners; the working effect of the underground harmful gas detection and early warning system for the coal mine is improved.
As an embodiment of the invention, the detection early warning instruments 1 of underground coal miners are in communication connection; the communication signals on the well are transmitted to the underground through the wireless base stations which are sequentially arranged on the conveyer; when the gas detection early warning device 1 works, a plurality of groups of coal miners can be distributed on different working faces to work, and when the concentration value of harmful gas detected by the gas detection device 2 in the detection early warning device 1 of one group of coal miners exceeds the range; the detection early warning instruments 1 are communicated with each other through the wireless base station on the conveyor, and are transmitted into all the detection early warning instruments 1 for underground operation through electric signals to early warn all coal miners; the other groups of coal miners which acquire the evacuation signals through communication connection win more evacuation time; the working effect of the underground harmful gas detection and early warning system for the coal mine is improved.
The specific working process is as follows:
in the process of underground work, a gas detection device 2 in the detection early warning instrument 1 detects harmful gas in the underground working environment in real time; only one gas detection device 2 is started within a preset range and replaced within each period, so that the electric quantity of the detection early warning instrument 1 of the underground miner of the coal mine can last for a longer time, meanwhile, the detection data of different positions are counted and analyzed through the replacement of the detection positions, and the gas condition of a large-range area under the coal mine can be known more clearly; analyzing and comparing the detection data of the ventilation area marks, knowing the ventilation conditions of different ventilation areas and repairing the ventilation areas in time; when the gas detection device 2 detects that the concentration value of harmful gas in the pit exceeds a preset range, the gas detection device 2 transmits a signal to the controller, the controller controls the vibrator 3 to vibrate, and the vibration of the vibrator 3 is transmitted to the body part of coal mine personnel through the soft material to remind the coal mine personnel, so that the coal mine personnel can quickly sense and evacuate as soon as possible; meanwhile, the controller transmits a signal of the vibration of the vibrator 3 to the mine dispatching room, and the rescue team and the medical personnel in the mine dispatching room immediately arrive at the rescue site for rescue, so that the situation that coal mine personnel are too nervous to inform the mine dispatching room in time when withdrawing is prevented, and more time is gained for rescue actions; when the detection data of the early warning detector 1 in work is close to the early warning range, all the gas detection devices 2 are started, gas at each point is detected after the gas detection devices are started, and when the gas value at each point is continuously increased, the detection early warning device 1 gives early warning to remind coalmine workers to evacuate in advance; if the gas detection is abnormal at one point, coal miners are reminded to investigate and repair the point, and the early warning effect is optimized; by arranging the positioning device 8, the positioning device 8 transmits an electric signal to the control terminal through a digital transmission system, the control terminal contains a circuit diagram inside a coal mine, and the circuit diagram of the control terminal is updated in real time according to the movement of the positioning device 8 of a coal mine worker; if the coal mine workers are trapped underground when not evacuated in time, the external rescue personnel can confirm the positions of the coal mine workers through the positioning device 8 and then rescue according to the circuit diagram of the control terminal; the rescue time is shortened, and the record of successful rescue of coal miners is improved; by arranging the voice broadcasting device 9, in the process of evacuating coal mine workers, the control terminal carries out voice prompt on the evacuation route of the coal mine workers through the monitored real-time condition of the underground environment of the coal mine, so that the phenomenon that the selected route of the coal mine workers collapses in the evacuation process is avoided, and the evacuation time is wasted; when the coal miners meet a bifurcation road in the evacuation process and need voice prompt, the coal miners are far away from a mechanical operation area, so that the voice of the voice prompt does not need to cover the voice of the mechanical operation, and the coal miners can hear the voice without great damage to the hearing of the coal miners; a plurality of groups of coal miners can be distributed on different working faces for operation, and when the concentration value of harmful gas detected by the gas detection device 2 in the detection early warning instrument 1 of one group of coal miners exceeds the range; the invention transmits the electric signals to all the detection early warning instruments 1 for underground operation through the communication connection of the detection early warning instruments 1 of all the coal miners, and performs early warning on all the coal miners; so that other groups of coal miners which are informed of the evacuation signals through communication connection win more evacuation time.
To verify the practical application effect of the present invention, the following experiments were performed:
1. design of experiments
Selecting four groups of coal mine workers with the same quantity and similar ages and physical conditions, distributing the four groups of coal mine workers to the same position under the same coal mine, and carrying out evacuation exercises in the same underground tunnel of the coal mine in sequence; two groups of coal miners A, B wear gas detectors in the prior art, and two groups of coal miners C, D wear the detection early warning device; and the noise simulation device simulates the noise environment of mechanical operation under the coal mine.
2. Processing of Experimental results
Randomly releasing carbon dioxide gas slightly exceeding the standard amount of the gas detection device in different time periods; calculating the total time spent by the whole group of the escaping closed spaces through a timing device; the reaction process of coal mine workers is slowly replayed through coal mine underground monitoring equipment, and the time from the early warning of the detection early warning device to the turning and evacuation action of the coal mine workers is recorded as the reaction time; four experiments were performed per group.
3. Results of the experiment
From fig. 3, it can be seen that compared to the prior art gas detector, the C, D two groups used in the invention have a total time from detection warning to complete evacuation significantly lower than the A, B two groups used in the control;
as can be seen from fig. 4, the response time of the coal miners using C, D groups of the present invention is significantly lower than that of the control A, B group compared to the gas detector of the prior art;
from the average of the data of each group:
total evacuation time (min):
reaction time(s):
the significant reduction in total evacuation time and reaction time for group C, D compared to group A, B was more clearly seen by the average of the data over multiple experiments;
in summary, compared with the detection and early warning device of the present invention, the gas detector of the prior art; the time required for the total evacuation time of experiments and the reaction time of coal mine workers is more, and the time is very important every minute and every second in the process of real underground coal mine work.
The front, the back, the left, the right, the upper and the lower are based on the observation angle of the person, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.
In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in fig. 1, and are used merely to facilitate the description of the present invention and to simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be taken as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A coal mine underground harmful gas detection early warning system comprises a controller and a detection early warning device; the detection early warning device is used for detecting and alarming harmful gas in a coal mine, and is characterized in that: the detection early warning device comprises:
the gas detection early warning device comprises a detection early warning instrument (1), wherein a gas detection device (2) is arranged in the detection early warning instrument (1); the gas detection device (2) is used for detecting harmful gases; one end of the detection early warning instrument (1) is made of soft materials; one end of the interior of the detection early warning instrument (1) close to the soft material is electrically connected with a vibrator (3); the vibrator (3) is in communication connection with the mine dispatching room;
the wearing belt (4), the wearing belt (4) is arranged on two sides of the detection early warning instrument (1);
a detection network is formed among the single detection early warning instruments (1) under the coal mine; only one gas detection device (2) is started within a preset distance, and one running gas detection device (2) is replaced in turn every other detection period; the detection network counts the detection data of each underground area of the coal mine, and marks the detection data of the underground ventilation area of the coal mine.
2. The underground coal mine harmful gas detection and early warning system according to claim 1, which is characterized in that: the upper end of the wearing belt (4) is fixedly connected with an arc-shaped elastic strip (5).
3. The underground coal mine harmful gas detection and early warning system according to claim 1 or 2, which is characterized in that: the detection early warning instrument (1) is rotatably connected with massage balls (6) at the position of the soft material and on the inner side of the wearing belt (4).
4. The underground coal mine harmful gas detection and early warning system according to claim 1 or 2, which is characterized in that: the upper end face of the detection early warning instrument (1) and one end far away from the soft material are fixedly connected with a shock pad (7); the shock absorption pad (7) can be used for absorbing dust in the air.
5. The underground coal mine harmful gas detection and early warning system according to any one of claims 1 to 4, which is characterized in that: the detection early warning instrument (1) starts all gas detection devices (2) in the underground coal mine when detection data are close to an early warning threshold value; and judging the abnormal reason by analyzing the gas condition of each position point.
6. The underground coal mine harmful gas detection and early warning system according to claim 5, which is characterized in that: the detection early warning instrument (1) is internally and electrically connected with a positioning device (8); the positioning device (8) is in communication connection with a control terminal.
7. The underground coal mine harmful gas detection and early warning system according to claim 6, which is characterized in that: the control terminal is electrically connected with a voice broadcasting device (9) through a positioning device (8); the detection early warning instrument (1) is used for powering off the gas detection device (2) after the early warning signal is generated.
8. The underground coal mine harmful gas detection and early warning system according to claim 6 or 7, which is characterized in that: two sides inside the detection early warning instrument (1) are electrically connected with a light-emitting circuit (10); the two sides of the detection early warning instrument (1) are made of transparent materials; a group of light emitting diodes is arranged on the light emitting circuit (10) in a rectangular array mode.
9. The underground coal mine harmful gas detection and early warning system according to claim 8, characterized in that: the light-emitting circuit (10) is electrically connected with a head lamp of a coal mine worker.
10. The underground coal mine harmful gas detection and early warning system according to claim 9, which is characterized in that: the detection early warning instruments (1) of underground coal miners are in communication connection; the communication signal on the well is transmitted to the underground through the wireless base stations which are sequentially arranged on the transporter.
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Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007110489A1 (en) * | 2006-03-03 | 2007-10-04 | Jean-Jacques Franch | Survival device in the context of natural disasters consisting of a dwelling module and its accessories |
| CN101063410A (en) * | 2006-04-25 | 2007-10-31 | 深圳威迪泰通信技术有限公司 | Mine safety early warning and rescue information systems |
| CN201497720U (en) * | 2009-09-04 | 2010-06-02 | 北京科力赛克科技有限公司 | Harmful gas detecting instrument |
| CA2816125A1 (en) * | 2010-11-03 | 2012-05-10 | Solazyme, Inc. | Microbial oils with lowered pour points, dielectric fluids produced therefrom, and related methods |
| CN105444022A (en) * | 2014-09-29 | 2016-03-30 | 固安翌光科技有限公司 | Lighting device for coal mine |
| CN205154258U (en) * | 2015-11-17 | 2016-04-13 | 重庆城市管理职业学院 | Colliery personnel in pit's positioning device |
| CN106580649A (en) * | 2016-12-16 | 2017-04-26 | 河南智金网络技术有限公司 | Intelligent massage belt |
| CN207004574U (en) * | 2017-06-28 | 2018-02-13 | 陕西派瑞智能科技有限公司 | A kind of colliery pernicious gas monitoring and early warning device |
| CN208310844U (en) * | 2018-06-02 | 2019-01-01 | 西山煤电(集团)有限责任公司 | A kind of coal mine safety monitoring device |
| CN109184795A (en) * | 2018-09-03 | 2019-01-11 | 煤炭科学技术研究院有限公司 | A kind of coal mine emergency rescue system, safety monitoring method, device and storage medium |
| CN209340924U (en) * | 2019-03-21 | 2019-09-03 | 王成庆 | A kind of Explosion-proof miner's lamp of coal mine band special gas-warning |
| CN110477885A (en) * | 2019-09-09 | 2019-11-22 | 安徽理工大学 | A kind of Coal Miners vital sign monitoring and rescue system of alarming |
| CN209705771U (en) * | 2018-11-29 | 2019-11-29 | 深圳市广和通无线股份有限公司 | Mine lamp terminal |
| CN210319337U (en) * | 2019-05-13 | 2020-04-14 | 重庆工程职业技术学院 | Portable coal mine gas content measuring device |
| WO2021036597A1 (en) * | 2019-08-27 | 2021-03-04 | 山东科技大学 | Robot and method for intelligently monitoring and evaluating dangerous gas source in unsealing closed tunnel of coal mine |
| KR102229620B1 (en) * | 2020-08-20 | 2021-03-17 | 홍성희 | Smart IOT gas alarm system |
| CN213039326U (en) * | 2020-08-16 | 2021-04-23 | 王丽丽 | Gas detection alarm device for coal mine tunnel |
| CN214198198U (en) * | 2020-08-25 | 2021-09-14 | 江苏艾普泰克智能科技有限公司 | Optical fiber vibration sensor |
-
2021
- 2021-11-11 CN CN202111334700.0A patent/CN113982691B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007110489A1 (en) * | 2006-03-03 | 2007-10-04 | Jean-Jacques Franch | Survival device in the context of natural disasters consisting of a dwelling module and its accessories |
| CN101063410A (en) * | 2006-04-25 | 2007-10-31 | 深圳威迪泰通信技术有限公司 | Mine safety early warning and rescue information systems |
| CN201497720U (en) * | 2009-09-04 | 2010-06-02 | 北京科力赛克科技有限公司 | Harmful gas detecting instrument |
| CA2816125A1 (en) * | 2010-11-03 | 2012-05-10 | Solazyme, Inc. | Microbial oils with lowered pour points, dielectric fluids produced therefrom, and related methods |
| CN105444022A (en) * | 2014-09-29 | 2016-03-30 | 固安翌光科技有限公司 | Lighting device for coal mine |
| CN205154258U (en) * | 2015-11-17 | 2016-04-13 | 重庆城市管理职业学院 | Colliery personnel in pit's positioning device |
| CN106580649A (en) * | 2016-12-16 | 2017-04-26 | 河南智金网络技术有限公司 | Intelligent massage belt |
| CN207004574U (en) * | 2017-06-28 | 2018-02-13 | 陕西派瑞智能科技有限公司 | A kind of colliery pernicious gas monitoring and early warning device |
| CN208310844U (en) * | 2018-06-02 | 2019-01-01 | 西山煤电(集团)有限责任公司 | A kind of coal mine safety monitoring device |
| CN109184795A (en) * | 2018-09-03 | 2019-01-11 | 煤炭科学技术研究院有限公司 | A kind of coal mine emergency rescue system, safety monitoring method, device and storage medium |
| CN209705771U (en) * | 2018-11-29 | 2019-11-29 | 深圳市广和通无线股份有限公司 | Mine lamp terminal |
| CN209340924U (en) * | 2019-03-21 | 2019-09-03 | 王成庆 | A kind of Explosion-proof miner's lamp of coal mine band special gas-warning |
| CN210319337U (en) * | 2019-05-13 | 2020-04-14 | 重庆工程职业技术学院 | Portable coal mine gas content measuring device |
| WO2021036597A1 (en) * | 2019-08-27 | 2021-03-04 | 山东科技大学 | Robot and method for intelligently monitoring and evaluating dangerous gas source in unsealing closed tunnel of coal mine |
| CN110477885A (en) * | 2019-09-09 | 2019-11-22 | 安徽理工大学 | A kind of Coal Miners vital sign monitoring and rescue system of alarming |
| CN213039326U (en) * | 2020-08-16 | 2021-04-23 | 王丽丽 | Gas detection alarm device for coal mine tunnel |
| KR102229620B1 (en) * | 2020-08-20 | 2021-03-17 | 홍성희 | Smart IOT gas alarm system |
| CN214198198U (en) * | 2020-08-25 | 2021-09-14 | 江苏艾普泰克智能科技有限公司 | Optical fiber vibration sensor |
Non-Patent Citations (4)
| Title |
|---|
| XIE ZHONGPENG, RESOURE AND ENVIRONMENTAL ENGINEERING INSTITUTE CHINA UNIVERSITY OF MINING AND TECHNOLOGY, BEIFING 100083, CHINA;SA: "Research on Working Face of Residual Coal Self-Ignition Characteristics and Early Warning Technology", PROCEDIA ENGINEERING, pages 582 - 587 * |
| 方娜: "煤炭资源经济低碳转型的路径选择研究", 科技经济市场, no. 001, pages 83 - 84 * |
| 旷曦域;曹献平;钟栋;王历历: "空气泡沫防气窜能力评价的实验研究", 油气藏评价与开发, vol. 2, no. 003, pages 34 - 37 * |
| 曾凯: "穿戴式作业现场毒害气体预警系统", 中国优秀硕士学位论文全文数据库工程科技Ⅰ辑, no. 12, pages 10 - 56 * |
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