CN114183191A - Air pressing device for automatic alarm and starting in underground coal mine - Google Patents
Air pressing device for automatic alarm and starting in underground coal mine Download PDFInfo
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- CN114183191A CN114183191A CN202111571772.7A CN202111571772A CN114183191A CN 114183191 A CN114183191 A CN 114183191A CN 202111571772 A CN202111571772 A CN 202111571772A CN 114183191 A CN114183191 A CN 114183191A
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- sensor
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- alarm
- gas concentration
- connecting pipe
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- 239000003245 coal Substances 0.000 title claims abstract description 14
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000030279 gene silencing Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract 3
- 239000007789 gas Substances 0.000 description 26
- 230000003584 silencer Effects 0.000 description 6
- 230000029058 respiratory gaseous exchange Effects 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000005065 mining Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002341 toxic gas Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000008451 emotion Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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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
- E21F11/00—Rescue devices or other safety devices, e.g. safety chambers or escape ways
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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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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Business, Economics & Management (AREA)
- Health & Medical Sciences (AREA)
- Emergency Management (AREA)
- Pulmonology (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention relates to the field of disaster rescue, in particular to a compressed air device for automatically alarming and starting underground a coal mine, wherein the output end of an air inlet pipe is communicated with a connecting pipe, an air inlet valve, a pressure reducing valve and a filter are sequentially arranged from the input end to the output end of the connecting pipe, and a face shield is connected with the connecting pipe through a hose; the sensor group is in signal connection with the controller and is used for detecting the ambient gas concentration of the ambient gas in the space and outputting an ambient gas concentration signal; the controller is used for living the environmental gas concentration signal that acquires sensor group output to compare environmental gas concentration signal and threshold value, when environmental gas concentration signal exceeded the threshold value, the controller was assigned alarm instruction and was opened the air inlet valve to the alarm, made the air inlet pipe pass through connecting pipe and hose and carried the breathable gas of malleation to the face guard. The device can deal with various catastrophe conditions, can realize the functions of forced air self-rescue alarm and automatic start under the catastrophe conditions, and provides favorable living environment for underground personnel.
Description
Technical Field
The invention relates to the field of disaster rescue, in particular to a compressed air device for automatically alarming and starting underground coal mines.
Background
The mining compressed air self-rescue device comprises a box body, wherein a compressed air joint is arranged on the box body, a plurality of groups of respirators which are respectively connected with compressed air pipes are arranged in the box body, and a manual air inlet valve is arranged on a branch pipe of each group of respirators. When dangerous conditions such as sudden burst of harmful gas, roof fall, collapse and the like occur in an operation place, field personnel can not evacuate in time, and the forced air self-rescue device can be used for self-rescue nearby. The door cover is opened, the breathing mask belt is taken out, the air inlet valve is opened by the button, compressed air provided by the compressed air pipeline is adjusted according to needs through the air supply amount adjusting device, then pressure reduction and noise elimination are carried out through the pneumatic pressure reducing valve, unclean compressed air is changed into clean breathing air through the water collecting cup, and the purposes of stabilizing emotion and realizing site self rescue are achieved. The device has compact structure, convenient use and wide practicability.
In the process of mining in a mine, due to improper operation, equipment failure or change of a frame body structure, a large amount of harmful gas in the underground is suddenly gushed, once the accident happens, field operation personnel cannot evacuate in time and are trapped, and in the process of ground rescue, how to save oneself the trapped personnel in the underground is often the most important.
The underground compressed air self-rescue device is the life support of underground trapped personnel, but the traditional compressed air self-rescue device only provides a support for the trapped personnel after an accident occurs and cannot send out disaster alarm and start the compressed air self-rescue device at the first time.
Disclosure of Invention
In order to solve the problems, the invention provides the air pressing device for automatically alarming and starting the underground coal mine, which can be used for dealing with various catastrophe conditions, can realize the functions of self-rescue alarming and automatic starting of the air pressing under the catastrophe conditions, and provides a favorable living environment for underground personnel.
In order to achieve the purpose, the invention adopts the technical scheme that:
a coal mine underground automatic alarm and start air compression device comprises an air inlet pipe, a connecting pipe, a hose, a face shield, a controller, a sensor group, an alarm, an air inlet valve, a pressure reducing valve and a filter, wherein the output end of the air inlet pipe is communicated with the connecting pipe;
the sensor group is in signal connection with the controller and is used for detecting the ambient gas concentration of the ambient gas in the space and outputting an ambient gas concentration signal;
the alarm is in signal connection with the controller,
the controller is used for acquiring an environment gas concentration signal output by the sensor group, comparing the environment gas concentration signal with a threshold value, and when the environment gas concentration signal exceeds the threshold value, the controller issues an alarm instruction to the alarm and opens the air inlet valve, so that the air inlet pipe conveys the breathable gas with positive pressure to the mask through the connecting pipe and the hose.
Preferably, the sensor group is composed of 02Sensor, CO sensor, C02Sensor, H2S sensor and CH4And (4) forming a sensor.
Preferably, the threshold value of the controller for detecting the harmful gas concentration signal is: 02Sensor values below 18%, CO sensor values above 24ppm, C02Sensor value greater than 0.5%, H2The value of the S sensor is more than 6.6ppm, CH4The sensor value is greater than 1%.
Preferably, the connecting pipe is provided with a pressure gauge for monitoring the gas pressure in the current connecting pipe.
Preferably, a pneumatic switch and a manual pressure reducing valve wrench are arranged on the pressure reducing valve.
Preferably, the mask is provided with a silencer.
The beneficial effects of the invention are as follows:
when the device detects a disaster, the device automatically sends out an alarm, the air inlet valve on the air inlet pipe is automatically opened by the controller, and the disaster-avoiding person quickly wears the breathing mask to breathe and save oneself. Because the pressure difference between the inside of the mask and the outside is more than 300Pa, and the pressure of the toxic gas outside the mask is low, positive pressure is formed in the mask, the toxic gas cannot enter the mask, disaster-avoiding personnel can smoothly breathe fresh air without being damaged by harmful gas, and time is won for self-wearing the self-rescuer to escape from disaster sites.
Drawings
Fig. 1 is a schematic structural view of an air compression device for automatic alarming and starting in a coal mine.
The reference numerals include:
1-inlet pipe, 2-inlet valve, 3-controller, 4-02Sensor, 5-CO sensor, 6-C02Sensor, 7-H2S sensor, 8-CH4The device comprises a sensor, 9-an alarm, 10-a pressure reducing valve, 11-a filter, 12-a connecting pipe, 13-a hose, 14-a mask, 15-a silencer and 16-a pressure gauge.
Detailed Description
In order to make the purpose, technical solution and advantages of the present technical solution more clear, the present technical solution is further described in detail below with reference to specific embodiments. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present teachings.
As shown in fig. 1, the embodiment provides a compressed air device for automatic alarm and start in a coal mine, which comprises an air inlet pipe 1, a connecting pipe 12, a hose 13, a face mask 14, a controller 3, a sensor group, an alarm 9, an air inlet valve 2, a pressure reducing valve 10 and a filter 11, wherein the output end of the air inlet pipe 1 is communicated with the connecting pipe 12, the air inlet valve 2, the pressure reducing valve 10 and the filter 11 are sequentially arranged from the input end to the output end of the connecting pipe 12, the face mask 14 and the hose 13 are provided with a plurality of groups, and each face mask 14 is connected with the connecting pipe 12 through the hose 13; the sensor group is in signal connection with the controller 3 and is used for detecting the ambient gas concentration of the ambient gas in the space and outputting an ambient gas concentration signal; alarm 9 and 3 signal connection of controller, controller 3 are used for living the ambient gas concentration signal who obtains sensor group output to compare ambient gas concentration signal and threshold value, when ambient gas concentration signal exceedes the threshold value, controller 3 assigns alarm command and opens air inlet valve 2 to alarm 9, makes air inlet pipe 1 pass through connecting pipe 12 and hose 13 and carries the breathable gas of malleation to face guard 14.
Sensor group is composed of 02Sensor 4, CO sensor 5, C02Sensor 6, H2S sensor 7 and CH4A sensor 8. The threshold value of the controller 3 for detecting the harmful gas concentration signal is as follows: 02Sensor 4 values below 18%, CO sensor 5 values greater than 24ppm, C02The value of the sensor 6 is more than 0.5 percent, H2The value of S sensor 7 is greater than 6.6ppm, CH4The sensor 8 value is greater than 1%.
The connecting pipe 12 is provided with a pressure gauge 16 for monitoring the gas pressure in the connecting pipe 12. The pressure reducing valve 10 is provided with a pneumatic switch and a wrench of a manual pressure reducing valve 10. The mask 14 is provided with a silencer 15.
The following examples illustrate the use of the device in detail.
Example 1
A colliery is warning of saving oneself and automatic start device of forced air in pit includes: an air inlet pipe 1, an air inlet valve 2, a controller 3, 02Sensor 4, CO sensor 5, C02Sensor 6, H2S sensor 7, CH4A sensor 8, an alarm 9, a pressure reducing valve 10, a filter 11, a connecting pipe 12, a hose 13, a mask 14, a silencer 15 and a pressure gauge 16.
The air inlet pipe 1 is a compressed air pipeline, one end of the air inlet pipe 1 is connected with a connecting pipe 12, an air inlet valve 2, a pressure reducing valve 10 and a filter 11 are sequentially arranged on the air inlet pipe 1, and the air inlet valve 2 and the pressure reducing valve 10 are controlled by a controller 3. In other embodiments, the pressure relief valve 10 may be pneumatically controlled, the pressure relief valve 10 functioning to maintain the pressure of the gas output within the gas line within a desired range. The air inlet valve 2 is automatically controlled by the controller 3, and when a disaster occurs or the health condition of workers is damaged, the controller 3 automatically opens the air inlet valve 2. Be provided with pneumatic switch and manual relief pressure valve 10 spanner above relief pressure valve 10, can be through controlling oxygen inhalation mask, can control the oxygen volume under the less condition of personnel, avoid revealing oxygen through other oxygen mask 14, filter 11 can filter the harmful substance that is unfavorable for breathing in the compressed air pipeline. One end of the connecting pipe 12 is provided with a pressure gauge 16, gas enters the connecting pipe 12 and is displayed on the pressure gauge 16, the connecting pipe 12 is connected with a mask 14 through a hose 13, and the mask 14 is provided with a silencer 15
The embodiment is that a compressed air self-rescue system is installed in a working face of No. 3 coal seam mining of a certain mine.
Compressed air enters the compressed air self-rescue system through the air inlet pipe 1, the air inlet valve 2 controls the on-off of the compressed air self-rescue system, the controller 3 controls the on-off of the air inlet valve 2, and the controller 3 automatically opens the air inlet valve 2 when an alarm occurs; the side surface of the controller 3 box body is provided with 02Sensor 4, CO sensor 5, C02Sensor 6, H2S sensor 7 and CH4The output ends of the sensors are connected with the controller 3, and meanwhile, the controller 3 is externally connected with an alarm 9; in the initial state, the air inlet valve 2 is in the normally closed state, and when 0 is used, the air inlet valve is in the normally closed state2Sensor 4 values below 18%, CO sensor 5 values greater than 24ppm, C02The value of the sensor 6 is more than 0.5 percent, H2The value of S sensor 7 is greater than 6.6ppm, CH4When the value of the sensor 8 is larger than 1%, a disaster occurs or the health condition of workers is damaged, the alarm 9 gives an alarm, the compressed air self-rescue system is automatically started, workers in the disaster range can avoid the disaster in the range of the compressed air self-rescue system, when the air inlet valve 2 is automatically opened, compressed air is subjected to pressure control through the pressure reducing valve 10, the pressure reducing valve 10 can be automatically controlled by the controller 3, and can also be manually controlled by a wrench of the pressure reducing valve 10, harmful substances which are not beneficial to breathing in the air are filtered through the filter 11, the gas enters the connecting pipe 12 and displays the pressure in the pressure gauge 16, the gas enters the mask 14 through the hose 13 to be breathed by the human body, and the silencer plays a role in eliminating noise.
The device uses multiple indexes to alarm and start the compressed air self-rescue system. The device is convenient and quick to use, safe to use, and convenient to install, wins more time for the life-saving personnel.
The foregoing is only a preferred embodiment of the present invention, and many variations in the specific embodiments and applications of the invention may be made by those skilled in the art without departing from the spirit of the invention, which falls within the scope of the claims of this patent.
Claims (6)
1. The utility model provides a colliery is pressure wind device of autoalarm and start-up in pit which characterized in that: the gas-liquid separation device comprises a gas inlet pipe, a connecting pipe, a hose, a face mask, a controller, a sensor group, an alarm, a gas inlet valve, a pressure reducing valve and a filter, wherein the output end of the gas inlet pipe is communicated with the connecting pipe;
the sensor group is in signal connection with the controller and is used for detecting the ambient gas concentration of the ambient gas in the space and outputting an ambient gas concentration signal;
the alarm is in signal connection with the controller;
the controller is used for acquiring an environment gas concentration signal output by the sensor group, comparing the environment gas concentration signal with a threshold value, and when the environment gas concentration signal exceeds the threshold value, the controller issues an alarm instruction to the alarm and opens the air inlet valve, so that the air inlet pipe conveys the breathable gas with positive pressure to the mask through the connecting pipe and the hose.
2. The coal mine underground automatic alarm and starting compressed air device according to claim 1, which is characterized in that: the sensor group is composed of 02Sensor, CO sensor, C02Sensor, H2S sensor and CH4And (4) forming a sensor.
3. The coal mine underground automatic alarm and starting compressed air device according to claim 2, characterized in that: the threshold value of the controller for detecting the harmful gas concentration signal is as follows: 02Sensor values below 18%, CO sensor values above 24ppm, C02Sensor value greater than 0.5%, H2The value of the S sensor is more than 6.6ppm, CH4The sensor value is greater than 1%.
4. The coal mine underground automatic alarm and starting compressed air device according to claim 1, which is characterized in that: and the connecting pipe is provided with a pressure gauge for monitoring the gas pressure in the current connecting pipe.
5. The coal mine underground automatic alarm and starting compressed air device according to claim 1, which is characterized in that: and a pneumatic switch and a manual pressure reducing valve wrench are arranged on the pressure reducing valve.
6. The coal mine underground automatic alarm and starting compressed air device according to claim 1, which is characterized in that: and the mask is provided with a silencing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111571772.7A CN114183191A (en) | 2021-12-21 | 2021-12-21 | Air pressing device for automatic alarm and starting in underground coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111571772.7A CN114183191A (en) | 2021-12-21 | 2021-12-21 | Air pressing device for automatic alarm and starting in underground coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114183191A true CN114183191A (en) | 2022-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111571772.7A Pending CN114183191A (en) | 2021-12-21 | 2021-12-21 | Air pressing device for automatic alarm and starting in underground coal mine |
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| Country | Link |
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| CN (1) | CN114183191A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080041376A1 (en) * | 2006-08-16 | 2008-02-21 | Rescue Air Systems, Inc. | Safety system and method of an underground mine |
| CN201053330Y (en) * | 2007-06-21 | 2008-04-30 | 黄华山 | Forced air self-rescuing device |
| CN203925570U (en) * | 2014-05-04 | 2014-11-05 | 盐城市利鑫矿山器材有限公司 | Mine compressed air water supply self-help apparatus |
| CN205867336U (en) * | 2016-06-29 | 2017-01-11 | 武汉东方思创应急装备科技有限公司 | Harmful gas's compression oxygen self -rescuer in automatic isolated environment of intelligence |
| CN110051942A (en) * | 2019-05-27 | 2019-07-26 | 安徽省中飞安全科技有限公司 | A kind of intelligent mine compressed air self-help apparatus |
| CN113720378A (en) * | 2021-07-29 | 2021-11-30 | 华北科技学院(中国煤矿安全技术培训中心) | Intelligent on-line monitoring and linkage disposal device for spontaneous combustion disasters of coal in goaf |
| CN215256305U (en) * | 2021-05-14 | 2021-12-21 | 北京天地华泰矿业管理股份有限公司 | Airborne compressed air self-rescue device |
-
2021
- 2021-12-21 CN CN202111571772.7A patent/CN114183191A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080041376A1 (en) * | 2006-08-16 | 2008-02-21 | Rescue Air Systems, Inc. | Safety system and method of an underground mine |
| CN201053330Y (en) * | 2007-06-21 | 2008-04-30 | 黄华山 | Forced air self-rescuing device |
| CN203925570U (en) * | 2014-05-04 | 2014-11-05 | 盐城市利鑫矿山器材有限公司 | Mine compressed air water supply self-help apparatus |
| CN205867336U (en) * | 2016-06-29 | 2017-01-11 | 武汉东方思创应急装备科技有限公司 | Harmful gas's compression oxygen self -rescuer in automatic isolated environment of intelligence |
| CN110051942A (en) * | 2019-05-27 | 2019-07-26 | 安徽省中飞安全科技有限公司 | A kind of intelligent mine compressed air self-help apparatus |
| CN215256305U (en) * | 2021-05-14 | 2021-12-21 | 北京天地华泰矿业管理股份有限公司 | Airborne compressed air self-rescue device |
| CN113720378A (en) * | 2021-07-29 | 2021-11-30 | 华北科技学院(中国煤矿安全技术培训中心) | Intelligent on-line monitoring and linkage disposal device for spontaneous combustion disasters of coal in goaf |
Non-Patent Citations (2)
| Title |
|---|
| 肖军等: "基于NB-IoT和云平台的瓦斯浓度监测与预警系统的研究", 机床与液压, vol. 49, no. 6, pages 60 - 63 * |
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