CN202325684U - Fire-protection automatic monitoring device for underground mined-out area of coal mine - Google Patents
Fire-protection automatic monitoring device for underground mined-out area of coal mine Download PDFInfo
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- CN202325684U CN202325684U CN 201120426469 CN201120426469U CN202325684U CN 202325684 U CN202325684 U CN 202325684U CN 201120426469 CN201120426469 CN 201120426469 CN 201120426469 U CN201120426469 U CN 201120426469U CN 202325684 U CN202325684 U CN 202325684U
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- pipeline
- gas
- sensor
- goaf
- coal mine
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Abstract
The utility model discloses a fire-protection automatic monitoring device for an underground mined-out area of a coal mine. The fire-protection automatic monitoring device is characterized in that a detection unit is composed of a pipeline gas concentration sensor, a pipeline gas temperature sensor, a pipeline carbon monoxide sensor and a gas negative/positive-pressure sensor, and a monitoring substation is arranged, takes a monitoring and controlling system as a platform and is connected with each sensor in the detection unit so as to collect and transmit monitored signals of the mined-out area. According to the utility model, the instantaneity and the accuracy in monitoring of an enclosing wall can be guaranteed, the conditions of the enclosing wall can be mastered accurately through online real-time monitoring, so that effective measures can be taken to carry out treatment in time, and thus, the production safety is enhanced.
Description
Technical field
The utility model relates to a kind of fire prevention automated watch-keeping facility that is applied in the coal mine gob.
Background technology
Along with the development of mine, accumulative total coal back production amount constantly increases, and makes the work plane goaf of mine increase.In the coal mining process, for various reasons, can remain a small amount of coal and stay in the goaf and can not reclaim; For the surplus oxidation of coal spontaneous combustion that prevents the goaf is got angry; The ore deposit is taked to seal the goaf and is annotated measures such as nitrogen, slip casting to the goaf, with the entering of starvation, prevents coal oxidation spontaneous combustion ignition.The flameproof effect of the various measures of taking in order to check; The regular arrangement personnel of needs observe the gas situation in the enclosing wall and check, the observation content comprises the positive negative pressure variation of gas that gas density, carbonomonoxide concentration, temperature, the enclosing wall of gas in the goaf is inside and outside etc.The mode of this artificial observation and inspection all can not satisfy the mine construction of continuous development at aspects such as promptness, accuracy and reliabilities, the untimely or excessive extraction of extraction all possibly form the freely burning fire accident.
The utility model content
The utility model is for avoiding above-mentioned existing in prior technology weak point; A kind of coal mine gob fire prevention automated watch-keeping facility is provided,, makes ventilation and extraction department can grasp gas situation in the goaf in real time through real-time monitoring; Carry out extraction in good time; And effectively prevent excessive extraction, thus prevent the generation of freely burning fire accident, avoid causing the generation of smoked people's accident because of enclosing wall gas leakage.
The utility model adopts following technical scheme for the technical solution problem:
The design feature of the utility model coal mine gob fire prevention automated watch-keeping facility is: constitute detecting unit by pipeline gas concentration sensor, pipeline gas temperature pick up, pipeline carbon monoxide transducer and the positive and negative pressure sensor of gas; Outstation is set; Said outstation is to be platform with the monitoring and controlling system; By each sensor in the said outstation joint detection unit, the goaf monitored signal is gathered and transmitted.
The design feature of the utility model coal mine gob fire prevention automated watch-keeping facility also is said detecting unit being set in the goaf:
On the measure hole pipeline in enclosing wall; Connect one section detection pipeline through measure hole pipeline gate valve; The other end of said detection pipeline is connected to the suction side of goaf extraction pipe closer valve through the extraction pipe, pipe laying gas concentration sensor, pipeline carbon monoxide transducer and pipeline gas temperature pick up respectively on said detection pipeline;
On the peephole pipeline in enclosing wall, be positioned at the positive B/P EGR Back Pressure Transducer EGR of gas is installed outside the peephole pipeline gate valve.
Compared with present technology, the utility model beneficial effect is embodied in:
1, the utlity model has real-time: through the parameters of gas in the monitoring goaf; Make ventilation and extraction department can grasp gas situation in the goaf in real time; In good time carry out extraction, can prevent excessive extraction again, avoid any because extraction excessively and the situation of getting angry takes place;
2, the utlity model has accuracy: through regular artificial calibration, demarcate sensor show value accurately, can effectively avoid improper or observation error and the artificial lazy excessive possibility of reported data error that causes with manually-operated;
3, the utlity model has continuity: manual work carries out can only carrying out in the enclosing wall process of observation one day three times observation, lacks the continuity of data, and the utility model has effectively been avoided artificial observation time and the incongruent situation of most of gas-condition data;
4, the utility model can be saved the labour, and efficient is high.
Description of drawings
Fig. 1 is the utility model scheme of installation.
Label among the figure: 1 measure hole pipeline; 2 adpting flanges; 3 pipeline gas concentration sensors; 4 pipeline carbon monoxide transducers; 5 pipeline gas temperature pick ups; The positive B/P EGR Back Pressure Transducer EGR of 6 gases; 7 enclosing walls; 8 suction sides; 9 detect pipeline; 10 measure hole pipeline gate valves; 11 goafs; 12 extraction pipe closer valves; 13 peephole pipelines; 14 peephole pipeline gate valves;
The specific embodiment
Coal mine gob fire prevention automated watch-keeping facility is to constitute detecting unit by the positive and negative pressure sensor 6 of pipeline gas concentration sensor 3, pipeline gas temperature pick up 5, pipeline carbon monoxide transducer 4 and gas in the present embodiment; Outstation is set; Outstation is to be platform with the monitoring and controlling system; By each sensor in the outstation joint detection unit, the goaf monitored signal is gathered and transmitted.
Pipeline gas concentration sensor 3 is to be used for measuring the goaf gas gas concentration, because goaf gas is constantly gushed out, its gas density reaches more than 60% sometimes, and therefore, selecting the range ability of concentration sensor is 0～100%.
Pipeline gas temperature pick up 5 is used to measure the gas temperature in goaf, and as requested, temperature will take measures during greater than 30 ℃ to handle, and therefore selecting range is 0～100 ℃.
Pipeline carbon monoxide transducer 4 is used for measuring goaf gas carbonomonoxide concentration, and measurement range selection is 0～500ppm.
The positive B/P EGR Back Pressure Transducer EGR 6 of gas is through gas pressure inside and outside the pressure-sensitive original paper bidirectional measurement enclosing wall, if barotropic state explains that then gas has the trend of overflowing outward in the enclosing wall; Along with the carrying out of extraction, the gas pressure state is a negative pressure state in the enclosing wall, and air inlet trend is then arranged in the enclosing wall; Negative pressure is too big, can cause to the goaf to leak into more oxygen, causes the coal oxidation spontaneous combustion; Therefore the pressure in goaf will be controlled within the specific limits, select positive B/P EGR Back Pressure Transducer EGR range be-50～+ 5KPa.
The signal of each sensor is output as 200～1000Hz in the detecting unit, is used to insert each outstation, thereby realizes the functions such as collection, transmission, storage, printing and terminal demonstration to the goaf monitor signal.
In the practical implementation, as shown in Figure 1, detecting unit being set in the goaf in the present embodiment:
On the measure hole pipeline 1 in enclosing wall 7; Be connected one section detection pipeline 9 with adpting flange 2 through measure hole pipeline gate valve 10; The other end that detects pipeline 9 is connected to the suction side 8 of goaf 11 extraction pipe closer valves 12 through the extraction pipe, is detecting on the pipeline 9 pipe laying gas concentration sensor 3, pipeline carbon monoxide transducer 4 and pipeline gas temperature pick up 5 respectively; Gas flow through measure hole pipeline gate valve 10 control flows through sensor.
On the peephole pipeline 13 in enclosing wall 7; Be positioned at the positive B/P EGR Back Pressure Transducer EGR 6 of gas is installed outside the peephole pipeline gate valve 14; The positive B/P EGR Back Pressure Transducer EGR of gas is arranged on the different pipelines with other each sensor; On the one hand do not influence artificial observation,, can effectively avoid on the other hand the negative pressure state of pipeline being impacted the error of bringing positive negative pressure to measure because of other sensor to make things convenient for the measure error of verification concentration, temperature and the positive and negative pressure sensor of gas.
Claims (2)
1. coal mine gob fire prevention automated watch-keeping facility; It is characterized in that: constitute detecting unit by pipeline gas concentration sensor (3), pipeline gas temperature pick up (5), pipeline carbon monoxide transducer (4) and the positive and negative pressure sensor of gas (6); Outstation is set; Said outstation is to be platform with the monitoring and controlling system, by each sensor in the said outstation joint detection unit, the goaf monitored signal is gathered and is transmitted.
2. coal mine gob fire prevention automated watch-keeping facility according to claim 1 is characterized in that said detecting unit being set in the goaf:
On the measure hole pipeline (1) in enclosing wall (7); Connect one section detection pipeline (9) through measure hole pipeline gate valve (10); The other end of said detection pipeline (9) is connected to the suction side of goaf extraction pipe closer valve (12) through the extraction pipe, goes up pipe laying gas concentration sensor (3), pipeline carbon monoxide transducer (4) and pipeline gas temperature pick up (5) respectively at said detection pipeline (9);
On the peephole pipeline (13) in enclosing wall (7), be positioned at the positive B/P EGR Back Pressure Transducer EGR of gas (6) is installed outside the peephole pipeline gate valve (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120426469 CN202325684U (en) | 2011-11-01 | 2011-11-01 | Fire-protection automatic monitoring device for underground mined-out area of coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120426469 CN202325684U (en) | 2011-11-01 | 2011-11-01 | Fire-protection automatic monitoring device for underground mined-out area of coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202325684U true CN202325684U (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120426469 Expired - Fee Related CN202325684U (en) | 2011-11-01 | 2011-11-01 | Fire-protection automatic monitoring device for underground mined-out area of coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202325684U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470305A (en) * | 2013-09-03 | 2013-12-25 | 淮南矿业(集团)有限责任公司 | System and method for preventing and controlling potential hazards in gas extraction |
| CN104033181A (en) * | 2014-06-23 | 2014-09-10 | 淮南矿业(集团)有限责任公司 | Monitoring method and monitoring system for sealing wall of coal mine |
| CN104963724A (en) * | 2015-06-25 | 2015-10-07 | 苏州市英富美欣科技有限公司 | Goaf fireproof monitoring system |
| CN105937405A (en) * | 2016-05-05 | 2016-09-14 | 煤科集团沈阳研究院有限公司 | U-shaped ventilation working face goaf full-face curtain nitrogen injection fire preventing and extinguishing method |
| CN106481359A (en) * | 2016-11-15 | 2017-03-08 | 河南理工大学 | A kind of protecting against shock obturator of integrated mined-out area hazard monitoring system |
| CN106761923A (en) * | 2017-01-18 | 2017-05-31 | 平安煤炭开采工程技术研究院有限责任公司 | The blind lane enclosing wall in coal seam and the blind lane explosion-proof method using the enclosing wall |
| CN106837419A (en) * | 2017-04-07 | 2017-06-13 | 兖州煤业股份有限公司 | Face sky old working compound closure wall and its method of construction |
| CN107327317A (en) * | 2017-08-21 | 2017-11-07 | 淮南矿业(集团)有限责任公司 | A kind of mine sealing regional temperature detection means, system and method |
| CN108468850A (en) * | 2018-03-16 | 2018-08-31 | 田野 | The closed gas pumping control device of underground coal mine |
| CN114184235A (en) * | 2021-12-16 | 2022-03-15 | 内蒙古科技大学 | Gob-side entry retaining side goaf collecting device and method |
-
2011
- 2011-11-01 CN CN 201120426469 patent/CN202325684U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470305A (en) * | 2013-09-03 | 2013-12-25 | 淮南矿业(集团)有限责任公司 | System and method for preventing and controlling potential hazards in gas extraction |
| CN104033181A (en) * | 2014-06-23 | 2014-09-10 | 淮南矿业(集团)有限责任公司 | Monitoring method and monitoring system for sealing wall of coal mine |
| CN104963724A (en) * | 2015-06-25 | 2015-10-07 | 苏州市英富美欣科技有限公司 | Goaf fireproof monitoring system |
| CN105937405A (en) * | 2016-05-05 | 2016-09-14 | 煤科集团沈阳研究院有限公司 | U-shaped ventilation working face goaf full-face curtain nitrogen injection fire preventing and extinguishing method |
| CN106481359B (en) * | 2016-11-15 | 2019-04-30 | 河南理工大学 | A kind of protecting against shock obturator of integrated mined-out area hazard monitoring system |
| CN106481359A (en) * | 2016-11-15 | 2017-03-08 | 河南理工大学 | A kind of protecting against shock obturator of integrated mined-out area hazard monitoring system |
| CN106761923A (en) * | 2017-01-18 | 2017-05-31 | 平安煤炭开采工程技术研究院有限责任公司 | The blind lane enclosing wall in coal seam and the blind lane explosion-proof method using the enclosing wall |
| CN106837419A (en) * | 2017-04-07 | 2017-06-13 | 兖州煤业股份有限公司 | Face sky old working compound closure wall and its method of construction |
| CN106837419B (en) * | 2017-04-07 | 2019-05-28 | 兖州煤业股份有限公司 | Face sky old working compound closure wall and its method of construction |
| CN107327317A (en) * | 2017-08-21 | 2017-11-07 | 淮南矿业(集团)有限责任公司 | A kind of mine sealing regional temperature detection means, system and method |
| CN108468850A (en) * | 2018-03-16 | 2018-08-31 | 田野 | The closed gas pumping control device of underground coal mine |
| CN114184235A (en) * | 2021-12-16 | 2022-03-15 | 内蒙古科技大学 | Gob-side entry retaining side goaf collecting device and method |
| CN114184235B (en) * | 2021-12-16 | 2023-09-22 | 内蒙古科技大学 | Gob-side entry retaining side goaf collecting device and gob-side entry retaining side goaf collecting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20181101 |
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| CF01 | Termination of patent right due to non-payment of annual fee |