CN113982691B - Underground coal mine harmful gas detection and early warning system - Google Patents
Underground coal mine harmful gas detection and early warning system Download PDFInfo
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- CN113982691B CN113982691B CN202111334700.0A CN202111334700A CN113982691B CN 113982691 B CN113982691 B CN 113982691B CN 202111334700 A CN202111334700 A CN 202111334700A CN 113982691 B CN113982691 B CN 113982691B
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- 239000003245 coal Substances 0.000 title claims abstract description 175
- 238000004891 communication Methods 0.000 claims abstract description 17
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- 230000000694 effects Effects 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims description 29
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- 230000008439 repair process Effects 0.000 claims description 3
- 239000012780 transparent material Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 81
- 230000008569 process Effects 0.000 description 24
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- 238000005452 bending Methods 0.000 description 6
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- 238000013016 damping Methods 0.000 description 3
- 210000001624 hip Anatomy 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 206010011878 Deafness Diseases 0.000 description 2
- 238000013461 design Methods 0.000 description 2
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- 238000002474 experimental method Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 230000010370 hearing loss Effects 0.000 description 2
- 231100000888 hearing loss Toxicity 0.000 description 2
- 208000016354 hearing loss disease Diseases 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000002341 toxic gas Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 239000001569 carbon dioxide Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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Abstract
The invention belongs to the technical field of coal mine operation safety systems, in particular to a coal mine underground harmful gas detection and early warning system, which 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 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, close to the soft material, of the detection early warning instrument 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 airtight and the mechanical operation noise is very large; the earplug can be worn by the coal mine worker in operation, and the sound effect of the sound early warning device can be reduced in 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, industrial food, which is one of main energy sources used in human world in eighteenth century, and enters twenty-first century, although the value of coal is much less than before, coal is one of energy sources which are indispensable to our human production and life in a long time after all, the supply of coal is also related to the stability of the development of the industry of China and the whole social aspect, the problem of coal supply safety is the most important part of energy safety in China, and when coal exploitation is carried out, the coal is often required to go deep underground, and toxic gases such as gas are often accompanied in mines, so that coal workers usually need to detect the toxic gases in wells between entering the mines.
The method has the advantages that the method is suitable for underground drilling, blasting, coal-drilling, ventilation, transportation and other major production processes of coal mines, the noise is generated mainly from fans, electric coal drills, rock drills, flexible coal drills and the like, the sound pressure level is 82-130 d (A), along with the high development of the mechanized level of coal mine production, the noise intensity and harm of the 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 drill is a main noise source which is a mobile production device with the most common driving face applied to the underground coal-drilling working face and the greatest noise, the noise level generated in the general drilling process is more than 110dB, and other production processes of the coal mine can generate relatively strong noise.
Although the gas detector in the prior art can realize the effect of early warning; but the underground space is relatively airtight, and meanwhile, the mechanical operation noise is very loud, and the sound generates resonance in a closed space and is amplified by 1.5-2 times than the sound in the ordinary environment; the earplugs can be worn by coal mine workers in operation, and the sound effect of the detection early warning instrument can be reduced in mechanical operation; based on the detection and early warning system, the invention designs an underground harmful gas detection and early warning system for a coal mine so as to solve the technical problems in the prior art.
Disclosure of Invention
In order to make up the deficiency of the prior art, solve the underground space in the prior art relatively airtight, the mechanical operation noise is very loud at the same time, the sound produces resonance in a closed space, should amplify 1.5-2 times than the sound in the ordinary environment; the invention provides a coal mine underground harmful gas detection and early warning system, which aims to solve the problem that earplugs can be worn by coal mine workers in operation and the sound effect of a detection and early warning instrument can be reduced in mechanical operation.
The technical scheme adopted for solving the technical problems is as follows: the invention relates to a coal mine underground harmful gas detection and early warning system, which 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 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, close to the soft material, of the detection early warning instrument 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;
a detection network is formed among the single detection early warning instruments under the coal mine; only one gas detection device is started within a preset distance, and one running gas detection device is replaced in turn every other detection period; the detection network counts the detection data of all areas under the coal mine, and marks the detection data of the ventilation area under the coal mine.
Preferably, the upper end of the wearing belt is fixedly connected with an arc elastic strip.
Preferably, the detection early warning instrument is rotatably connected with the massage ball at the position of the soft material and 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 a shock pad; the shock pad may be used to adsorb dust in the air.
Preferably, the detection early warning instrument starts all gas detection devices in the coal mine when the detection data is close to an early warning threshold value; the abnormality cause is determined by analyzing the gas condition at each position.
Preferably, the detection early warning instrument is internally and electrically connected with a positioning device; 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 cuts off the power of the gas detection device after the early warning signal occurs.
Preferably, the two sides of the interior of the detection early warning instrument are electrically connected with a light-emitting circuit; transparent materials are arranged on two sides of the detection early warning instrument; the light-emitting circuit is provided with a group of light-emitting diodes in rectangular array.
Preferably, the lighting circuit is electrically connected with a colliery worker head lamp.
Preferably, the detection early warning devices of underground coal mine workers are in communication connection; the communication signals on the well are transmitted to the well through the wireless base stations which are sequentially arranged on the conveyor.
The beneficial effects of the invention are as follows:
1. compared with the traditional technical scheme, the underground coal mine harmful gas detection and early warning system provided by the invention has the advantages that the vibrator is arranged, so that the hearing loss of coal mine workers in the early warning process of notifying the evacuation is avoided, and meanwhile, the coal mine workers can more quickly perceive the early warning prompt and rapidly evacuate; the wearing is comfortable, and meanwhile, a better early warning effect is achieved; the working effect of the underground harmful gas detection and early warning system of the coal mine is improved.
2. According to the underground coal mine harmful gas detection early warning system, the positioning device is arranged, the control terminal comprises a circuit diagram in 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 not evacuated and trapped underground in time, outside rescue workers can confirm the positions of the coal mine workers through the positioning device, and rescue is carried out according to a circuit diagram of the control terminal; enabling shortening of rescue time.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is an internal construction view of the present invention;
FIG. 2 is a workflow diagram of the present invention;
fig. 3 is a histogram of total evacuation time;
FIG. 4 is a histogram of reaction times;
in the figure: 1. a detection early warning instrument; 2. a gas detection device; 3. a vibrator; 4. a wearing 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
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1 to 4, the underground coal mine harmful gas detection and early warning system provided by the invention 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 coal mine, and the detection early warning device comprises:
the gas detection 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, close to the soft material, of the detection early warning instrument 1 is electrically connected with a vibrator 3; the vibrator 3 is connected to the ore dispatching room in a communication way;
the wearing belts 4 are arranged on two sides of the detection early warning instrument 1;
a detection network is formed among the detection early warning devices 1 under the 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 all areas under the coal mine, and marks the detection data of the ventilation area under the coal mine;
when the device works, the underground space is relatively closed, meanwhile, the mechanical operation noise is very loud, and the sound generates resonance in a closed space and is amplified by 1.5-2 times than the sound in the ordinary environment; the earplugs can be worn by coal mine workers in operation, and the sound effect of the detection early warning instrument 1 can be reduced in mechanical operation;
the invention is characterized in that a vibrator 3 is arranged; before the coal mine worker works in the well, the detection early warning instrument 1 is fixed between the waists through the wearing belt 4, and in the process of working in the well, the gas detection device 2 in the detection early warning instrument 1 detects harmful gas in the working environment in the well in real time; only one gas detection device 2 is started in a preset range and replaced in each period, so that the electric quantity of the underground miner detection early warning instrument 1 can last for a longer time, meanwhile, detection data of different positions are counted and analyzed through replacement of detection positions in a detection network, and partial detection data are marked through the detection network, so that the gas condition of a large-range underground coal mine area 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 underground harmful gas 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 the coal mine personnel through the soft material to remind the coal mine personnel, so that the coal mine personnel can quickly perceive and withdraw as soon as possible; meanwhile, the controller transmits a vibration signal of the vibrator 3 to the mine dispatching room, and rescue teams and medical staff in the mine dispatching room immediately arrive at a rescue scene for rescue, so that the situation that the coal mine staff is too stressed to timely inform the mine dispatching room when evacuating 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 early warning signals 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 each coal mine worker and can quickly transmit detection signals when the coal mine workers work;
the vibrator 3 is arranged, so that the hearing loss of the coal mine workers in the early warning process of notifying the evacuation is avoided, and meanwhile, the coal mine workers can more quickly perceive the early warning prompt and evacuate rapidly; the working effect of the underground harmful gas detection and early warning system of the coal mine is improved.
As an embodiment of the present invention, the upper end of the wearing belt 4 is fixedly connected with an arc elastic strip 5; when the bending machine works, in the process of working of a coal mine worker, bending operation is needed, and the bending machine is provided with the arc-shaped elastic strips 5, so that the abdomen of the coal mine worker is propped against the arc-shaped elastic strips 5 in the process of bending operation; the arc-shaped elastic strips 5 enable the coal mine workers to feel more comfortable when bending down, and meanwhile, the wearing belt 4 can be prevented from causing extrusion and tightening injury to the abdomen of the coal mine workers; the working effect of the underground harmful gas detection and early warning system of the coal mine is improved.
As one embodiment of the present invention, the detection and early warning device 1 is rotatably connected with a massage ball 6 at the position of the soft material and at the inner side of the wearing belt 4; when the massage belt is in work, the massage balls 6 are arranged, so that the contact area between the wearing belt 4 and the waist and abdomen of a coal mine worker is reduced, discomfort of the body caused by the fact that the wearing belt 4 is tightly attached to the abdomen for a long time is prevented, and the whole waist and abdomen can be massaged in the process of bending operation of the coal mine worker; meanwhile, in the early warning process, the vibrator 3 drives the massage ball 6 to vibrate, so that the perception of coal mine workers is higher; the working effect of the underground harmful gas detection and early warning system of the coal mine is improved.
As an implementation mode of the invention, 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 pad 7 can be used for absorbing dust in the air; during operation, 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 damping pad 7 is arranged, so that the coal mine stones fall on the damping 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 of the coal mine is improved.
As one embodiment of the invention, the detection early warning instrument 1 starts all the gas detection devices 2 in the coal mine when the detection data is close to the early warning threshold value; judging the cause of the abnormality by analyzing the gas condition of each position point; when the gas detection device works, when detection data of the early warning detector 1 in work is close to an early warning range, starting all the gas detection devices 2 in the mine area, detecting gas at each point after starting, and when the gas value at each point is continuously increased, early warning the detection early warning detector 1 in advance to remind coal mine workers to evacuate in advance; if the gas detection at one point is abnormal, reminding coal mine workers to check and repair the point, and optimizing the early warning effect; the working effect of the underground harmful gas detection and early warning system of the coal mine is improved.
As an embodiment of the present invention, the detection early warning device 1 is electrically connected with a positioning device 8; the positioning device 8 is connected with a control terminal in a communication way; when the 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 comprises a circuit diagram in 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 not evacuated and trapped underground in time, outside rescue workers can confirm the positions of the coal mine workers through the positioning device 8, and rescue is carried out according to a circuit diagram of the control terminal; the rescue time can be shortened, and the record of successful rescue of coal mine workers is improved; the working effect of the underground harmful gas detection and early warning system of 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 powered off the gas detection device 2 after an early warning signal occurs; during operation, the voice broadcasting device 9 is arranged, so that the control terminal carries out voice prompt on the coal mine workers to evacuate the line according to the monitored real-time condition of the underground coal mine environment in the process of evacuating the coal mine workers, and the condition that the selected line of the coal mine workers is collapsed in the process of evacuating is avoided, and the evacuating time is wasted; because the voice prompt is far away from the mechanical operation area when the coal mine workers meet the bifurcation road in the evacuation process, the voice of the voice prompt can be free from covering the voice of the mechanical operation, so that the coal mine workers can hear and the hearing of the coal mine workers is not greatly damaged; the gas detection device 2 is powered off in the process of evacuating the coal mine workers, so that the electric quantity in the detection early warning instrument 1 can be more used for contacting a control terminal and working of the voice broadcasting device 9 when the coal mine workers evacuate; the working effect of the underground harmful gas detection and early warning system of the coal mine is improved.
As an embodiment of the present invention, the two sides of the interior of the detection and early warning device 1 are electrically connected with a light-emitting circuit 10; transparent materials are arranged at two sides of the detection early warning instrument 1; a group of light emitting diodes are arranged on the rectangular array of the light emitting circuit 10; when the coal mine lighting device works, the lighting circuit 10 is arranged, and the lighting circuit 10 can emit lighting light to provide lighting for coal mine workers 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 the coal mine workers to evacuate as soon as possible, and the red light flashing by the light-emitting circuit 10 gives the coal mine workers a sense of urgency in cooperation with the vibration of the vibrator 3, so that the coal mine workers evacuate rapidly after sensing an evacuation signal; by arranging the light emitting diodes of the rectangular array, the controller can arrange the evacuation sequence of the 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 are used for displaying the digits of the digits and projecting the digits to the underground wall of the coal mine through the detection early warning instrument 1, and the coal mine workers can adjust the evacuated array types according to the arrangement serial numbers of the workers and the arrangement serial numbers of the coal mine workers in front in the evacuation process, and because the serial numbers are ordered according to the positioning information of the positioning device 8, the evacuation array types are more convenient to adjust; the gold time for evacuating is prevented from being influenced by fall caused by confusion in the evacuating process; the working effect of the underground harmful gas detection and early warning system of the coal mine is improved.
As an embodiment of the present invention, the light emitting circuit 10 is electrically connected with a colliery worker headlight; when the gas detection device works, the light-emitting circuit 10 is electrically connected with the head lamp, the head lamp can be powered by the detection early warning instrument 1 during normal work, and when the gas detection device 2 detects abnormality and needs early warning, the light-emitting circuit 10 and the head lamp synchronously flash, and the flash position of the head lamp can be more easily noticed by a coal mine worker at the front end of the coal mine worker; the working effect of the underground harmful gas detection and early warning system of the coal mine is improved.
As one embodiment of the invention, the detection early warning devices 1 of underground coal mine workers 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 conveyor; when the gas detection device 2 in the detection early warning instrument 1 of the coal workers in one group detects that the concentration value of harmful gas exceeds the range; the detection early warning devices 1 realize signal transmission among all underground positions through wireless base stations on a conveyor, and the detection early warning device is connected with the detection early warning devices 1 of all coal workers in a communication way and transmits electric signals to all the detection early warning devices 1 of underground operation to early warn all the coal workers; the other groups of coal mine workers which know the evacuation signals through communication connection gain more evacuation time; the working effect of the underground harmful gas detection and early warning system of the coal mine is improved.
The specific working procedure is as follows:
in the process of underground working, the gas detection device 2 in the detection early warning instrument 1 detects harmful gas in an underground working environment in real time; only one gas detection device 2 is started in a preset range and replaced in each period, so that the electric quantity of the underground miner detection early warning instrument 1 can last for a longer time, and meanwhile, detection data of different positions are counted and analyzed through replacement of detection positions, so that the gas condition of a large-range underground coal mine area 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 underground harmful gas 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 the coal mine personnel through the soft material to remind the coal mine personnel, so that the coal mine personnel can quickly perceive and withdraw as soon as possible; meanwhile, the controller transmits a vibration signal of the vibrator 3 to the mine dispatching room, and rescue teams and medical staff in the mine dispatching room immediately arrive at a rescue scene for rescue, so that the situation that the coal mine staff is too stressed to timely inform the mine dispatching room when evacuating is prevented, and more time is gained for rescue actions; when the detection data of the early warning detector 1 in operation is close to the early warning range, all the gas detection devices 2 are started, the gas at each point is detected after the starting, and when the gas value at each point is continuously increased, the detection early warning detector 1 early warns and reminds coal mine workers to evacuate in advance; if the gas detection at one point is abnormal, reminding coal mine workers to check and repair the point, and optimizing the early warning effect; through setting the positioning device 8, the positioning device 8 transmits an electric signal to the control terminal through the digital transmission system, the control terminal comprises a circuit diagram in the 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 the coal mine worker; if the coal mine workers are not evacuated and trapped underground in time, outside rescue workers can confirm the positions of the coal mine workers through the positioning device 8, and rescue is carried out according to a circuit diagram of the control terminal; the shortened rescue time is shortened, and the record of successful rescue of coal mine workers is improved; by arranging the voice broadcasting device 9, in the process of the coal mine worker evacuation, the control terminal carries out voice prompt on the coal mine worker to evacuate the line according to the monitored real-time condition of the underground coal mine environment, so that the situation that the selected line of the coal mine worker is collapsed in the process of evacuation is avoided, and the evacuation time is wasted; because the voice prompt is far away from the mechanical operation area when the coal mine workers meet the bifurcation road in the evacuation process, the voice of the voice prompt can be free from covering the voice of the mechanical operation, so that the coal mine workers can hear and the hearing of the coal mine workers is not greatly damaged; a plurality of groups of coal mine workers can be distributed on different working surfaces 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 the coal mine worker in one group exceeds the range; according to the invention, all coal workers are subjected to early warning through communication connection of the detection early warning instruments 1 of all coal workers and electric signals transmitted to the detection early warning instruments 1 of all underground operations; so that other groups of coal miners who know the evacuation signals through communication connection gain more evacuation time.
In order to verify the practical application effect of the invention, the following experiments are made:
1. test design
Selecting four groups of coal mine workers with the same number and similar age and physical conditions, distributing the coal mine workers to the same position under the same coal mine, and sequentially carrying out evacuation exercise in the underground tunnel of the same coal mine; two groups of A, B coal mine workers wear the gas detector in the prior art, and two groups of C, D coal mine workers wear the detection and early warning device; and the noise environment of mechanical operation under the coal mine is simulated by the noise simulation device.
2. Experimental result processing
Releasing carbon dioxide gas slightly exceeding the standard amount of the gas detection device at different times randomly; calculating the total time of the whole group of escape closed spaces through a timing device; the reaction process of the coal mine workers is replayed at a low speed through underground monitoring equipment of the coal mine, and the time from the early warning of the detection and early warning device to the turning-over and evacuation of the coal mine workers is recorded as the reaction time; four experiments were performed for each group.
3. Experimental results
As can be seen from fig. 3, the total time from detection and early warning to complete evacuation is significantly lower for two C, D sets of the present invention than for A, B sets of the present invention compared to the prior art gas detector;
as can be seen from fig. 4, the reaction time of the coal miners using the C, D two groups of the present invention is significantly lower than that of the A, B two groups of the control, compared with the gas detector in the prior art;
from the average of the data from each group:
total evacuation time (min):
reaction time(s):
it is clear from the average values of the experimental data that the C, D group has a significant decrease in total evacuation time and reaction time compared to the A, B group;
in summary, compared with the detection and early warning device of the invention, the gas detector in the prior art; more time is required in the total time of experimental evacuation and the reaction time of coal workers, and is of great importance in the process of real underground coal mine work every minute/second.
The front, rear, left, right, up and down are based on the viewing 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 should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in fig. 1, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A 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 coal mine, and is characterized in that: the detection early warning device comprises:
the gas detection 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 gas; one end of the detection early warning instrument (1) is made of soft materials; one end, close to the soft material, of the detection early warning instrument (1) is electrically connected with a vibrator (3); the vibrator (3) is connected to the ore dispatching room in a communication way;
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 all areas under the coal mine, and marks the detection data of the ventilation area under the coal mine;
the detection early warning instrument (1) starts all gas detection devices (2) in the coal mine when the detection data are close to an early warning threshold value; judging the cause of the abnormality by analyzing the gas condition of each position point;
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;
the control terminal is electrically connected with a voice broadcasting device (9) through a positioning device (8); the detection early warning instrument (1) cuts off the power of the gas detection device (2) after an early warning signal occurs;
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 in a preset range and replaced in each period, so that the electric quantity of a detection early warning instrument (1) of underground miners of the coal mine can last for a longer time, and meanwhile, detection data of different positions are counted and analyzed through replacement of detection positions, so that the gas condition of a large-range area in the underground 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 underground harmful gas 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 the coal mine personnel through the soft material to remind the coal mine personnel, so that the coal mine personnel can quickly perceive and withdraw as soon as possible; meanwhile, the controller transmits a vibration signal of the vibrator (3) to the mine dispatching room, and rescue teams and medical staff in the mine dispatching room immediately arrive at a rescue site for rescue, so that the situation that the coal mine staff is too stressed to timely inform the mine dispatching room when withdrawing is prevented, and more time is gained for rescue actions; when the detection data of the early warning detector (1) in operation is close to an early warning range, all the gas detection devices (2) are started, the gas at each point is detected after the starting, and when the gas value at each point is continuously increased, the detection early warning detector (1) early warns and reminds coal mine workers to evacuate in advance; if the gas detection at one point is abnormal, reminding coal mine workers to check and repair the point, and optimizing the early warning effect; 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 comprises a circuit diagram in 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 not evacuated and trapped underground in time, outside rescue workers can confirm the positions of the coal mine workers through the positioning device (8), and rescue is carried out according to a circuit diagram of the control terminal; the shortened rescue time is shortened, and the probability of successful rescue of coal mine workers is improved; through setting up voice broadcast device (9), in colliery workman's the in-process of withdrawing, control terminal carries out the voice prompt to colliery workman and withdraws the circuit through the real-time condition of colliery underground environment who monitors, avoids colliery workman's the condition that the route of choosing has appeared the collapse in the in-process of withdrawing, has wasted the time of withdrawing.
2. The underground coal mine harmful gas detection and early warning system according to claim 1, wherein: 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, wherein: the detection early warning instrument (1) is rotatably connected with a massage ball (6) at the position of the soft material and at the inner side of the wearing belt (4).
4. The underground coal mine harmful gas detection and early warning system according to claim 1, wherein: 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 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 claim 1, wherein: the two sides of the interior of the detection early warning instrument (1) are electrically connected with a light-emitting circuit (10); transparent materials are arranged on two sides of the detection early warning instrument (1); a group of light emitting diodes are arranged on the rectangular array of the light emitting circuit (10).
6. The underground coal mine harmful gas detection and early warning system according to claim 5, wherein: the light-emitting circuit (10) is electrically connected with a head lamp of a coal mine worker.
7. The underground coal mine harmful gas detection and early warning system according to claim 6, wherein: the detection early warning instruments (1) of underground coal mine workers are in communication connection; the communication signals on the well are transmitted to the well through the wireless base stations which are sequentially arranged on the conveyor.
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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 (5)
| Title |
|---|
| Safety and Environmental Engineering Institute Capital University of Economics and Business, Beijing 1O0026, China.Research on Working Face of Residual Coal Self-Ignition Characteristics and Early Warning Technology.Procedia Engineering.2012,582-587. * |
| Xie Zhongpeng, Resoure and Environmental Engineering Institute China University of mining and technology, Beifing 100083, China * |
| 煤炭资源经济低碳转型的路径选择研究;方娜;科技经济市场(001);83-84 * |
| 空气泡沫防气窜能力评价的实验研究;旷曦域;曹献平;钟栋;王历历;油气藏评价与开发;2(003);34-37 * |
| 穿戴式作业现场毒害气体预警系统;曾凯;中国优秀硕士学位论文全文数据库工程科技Ⅰ辑(12);10-56 * |
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