CN103206246A - Fire prevention monitor in stope face goaf - Google Patents
Fire prevention monitor in stope face goaf Download PDFInfo
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- CN103206246A CN103206246A CN2013100948546A CN201310094854A CN103206246A CN 103206246 A CN103206246 A CN 103206246A CN 2013100948546 A CN2013100948546 A CN 2013100948546A CN 201310094854 A CN201310094854 A CN 201310094854A CN 103206246 A CN103206246 A CN 103206246A
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- monitoring device
- mining face
- goaf
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Abstract
The invention provides a fire prevention monitor in a stope face goaf. The fire prevention monitor comprises a monitor unit and a display unit. The monitor unit comprises a probe with a set containing space, and a hollow support rod. The probe is connected with the support rod. The containing space of the probe is communicated with the hollow of the support rod. The probe is provided with a through hole leading to the containing space. A sensitive element for monitoring temperature and/or gas concentration is disposed in the probe and is connected with the display unit through a data line disposed in the hollow support rod. The fire prevention monitor in the stope face goaf is simple, reasonable and compact in structure, overcomes the defects in manual detection, and is accurate, safe and real-time in monitoring the content of gas and carbon monoxide in an upper corner of a stope face.
Description
Technical field
The present invention relates to the ignition monitoring in the mine sealing space, relate in particular to fireproof monitoring device in a kind of actual mining face goaf.
Background technology
Raising day by day along with the constantly soaring and modernized coal mining process for stoping of coal resources demand, cause continuous the increasing of day back production amount of coal-face to cause gas emission to increase, cause simultaneously the goaf to leave in various degree something lost coal for various reasons, for something lost oxidation of coal and then the generation spontaneous combustion ignition phenomenon that prevents the goaf, often by annotate passive measures such as nitrogen, slip casting to the goaf.At present, in order to check the flameproof effect of the various measures of taking, regularly arrange personnel that gas situations such as the gas in goaf in the upper corner filling bag and carbon monoxide are observed and check.
Adopt artificial mode to monitor gases such as upper corner gas and carbon monoxide and have following defective: manually read optical interferometer numerical value, easily cause the difference of observed result because of operating personnel's qualification difference; If the upper corner filling is not tight, may there be high dense gas and carbon monoxide to overflow, bring danger for the observation personnel; Measured real-time property is poor, is not easy in time to judge that gas is also actively taked treatment measures in the filling bag.
Summary of the invention
The objective of the invention is to, problems at the existence of above-mentioned manual type monitoring upper corner ignition situation, fireproof monitoring device in a kind of actual mining face goaf is proposed, to realize temperature and/or gas content in accurate, safe, the real-time monitoring coal-face upper corner.
For achieving the above object, the technical solution used in the present invention is: fireproof monitoring device in a kind of actual mining face goaf, comprise monitoring means and display unit, described monitoring means comprises having probe and the hollow strut rod of setting accommodation space, described probe is connected with support bar, and the hollow connection of the accommodation space of described probe and support bar, described probe is provided with the through hole that is communicated with accommodation space, be provided with the sensing element for monitor temperature and/or gas concentration in the described probe, described sensing element is connected with display unit by the data wire that is arranged in the hollow support rails.
Further, described probe head is tapered portion.
Further, the sensing element of described monitoring gas concentration is for being used for the sensing element of monitoring gas and/or carbon monoxide.
Further, described support bar bar is long is 1.2-2m.
Further, described through hole is 10-40.
Further, described probe is threaded with the support bar bar.
Further, described support bar comprises that two joints are by the hollow stem that is threaded.
Further, described display unit comprises sensor gauge outfit, outstation and the ground data control centre that connects in turn, described sensor gauge outfit can directly demonstrate the situation of goaf internal temperature and/or gas (gas and carbon monoxide) by display window, is used for on-the-spot observation of patrolling and examining personnel; Described outstation can receive the numerical value that sensing element is monitored, and numerical value is transferred to ground data control centre by connection; Described ground data control centre gathers down-hole upper corner monitoring device data monitored by acquisition server, and carries out D/A switch, is used for the work such as data acquisition, report making, curve drafting on ground.
Further, described sensor gauge outfit is the gauge outfit with sound and light of alarm.
The operating principle of fireproof monitoring device in the actual mining face goaf of the present invention: goaf gas is example outside the upper corner filling bag to monitor, the probe that is provided with sensing element is inserted in the territory, goaf from upper corner filling bag gap, the accommodation space of gas in through hole enters probe contacts with sensing element in the territory, goaf, and the gas bearing capacity in the sensing element monitoring gas is sent to the display unit at ground monitoring center and observes for the people by data wire.
The fireproof monitoring apparatus structure is simple, reasonable, compact in the actual mining face goaf of the present invention, for monitoring and the monitoring of stope working surface of coal mines upper corner gas, fire prevention etc. provides means convenient, effective, science, comparing with personal monitoring's temperature and/or gas concentration has the following advantages:
1, sensing element can accurately be monitored gas concentration, effectively realizes the fire prevention condition monitoring;
2, operating personnel are arranged on the reading of the display unit of monitoring means certain distance by observation, grasp the situation of upper corner temperature and/or gas, this observation process is safe and reliable, even if it is not tight the upper corner filling to occur, the situation that has high dense gas and carbon monoxide to overflow can not brought danger to personnel yet;
3, the data monitored real-time is good, the upper corner temperature of sensing element monitoring and/or the data of gas can in time send display unit to, and operating personnel can in time judge the outer goaf gas of filling bag and/or carbon monoxide situation and actively take treatment measures according to the display unit reading;
4, reduce gas, fire prevention testing staff, effectively save the mine manpower.
Description of drawings
Fig. 1 is the structural representation of embodiment 1 monitoring means;
Fig. 2 is the structural representation of fireproof monitoring device in the embodiment 1 actual mining face goaf.
The specific embodiment
Embodiment 1
Fig. 1 is the structural representation of embodiment 1 monitoring means; Fig. 2 is the structural representation of fireproof monitoring device in the embodiment 1 actual mining face goaf.
Present embodiment discloses fireproof monitoring device in a kind of actual mining face goaf, comprise monitoring means and display unit, monitoring means as shown in Figure 1, comprise and have probe 3 and the hollow strut rod of setting accommodation space, support bar is for the protection of data wire, support bar comprises two joints by the hollow stem 4,5 that is threaded, and adopts two joint hollow stems 4,5 to be convenient to wiring and to check the trouble point; The total bar of this support bar is long to be 1.2-2m, described probe 3 passes through to be threaded closely with support bar, with prevent from popping one's head in 3 in the plug process in filling bag bag gap the self-supporting bar come off, and pop one's head in 3 accommodation space and the hollow connection of support bar, the uniform through hole that is communicated with accommodation space that is provided with on this probe 3, through hole is 24 altogether in the present embodiment, can guarantee effectively that the gas in the outer goaf of upper corner filling bag can enter in the probe fast, contacts fully with sensing element.
Be provided with the sensing element 2 for monitoring gas and carbonomonoxide concentration in the probe 3, this sensing element 2 is connected with display unit by the data wire that is arranged in the hollow support rails.This sensing element of this sensing element 2(is for being used for the sensing element of monitoring methane) operating principle be: the goaf inner air enters accommodation space from through hole, contact with the sensing element 2 in the accommodation space, methane is under the catalytic action of catalyzer on the sensing element 2, flameless combustion takes place, emit heat, the sensing element of sensing element 2 is heated up, and then make sensing element resistance become big, just can measure the concentration of methane gas by measuring the sensing element resistance variations.Corresponding when sensing element 2 when being used for monitoring carbon monoxide sensitive element, just can measure carbonomonoxide concentration in the goaf.
Probe 3 heads are tapered portion 1 in the present embodiment, and head is that the probe 3 of tapered portion 1 is conducive to be inserted in the goaf by the slit of upper corner filling bag.The zone of probe 3 of the present invention except head is cylindricality, is appreciated that this probe 3 zone except head can also be rectangle or other shapes.
As shown in Figure 2, display unit comprises sensor gauge outfit 6, outstation 7 and the ground data control centre 8 that connects in turn in the present embodiment, this sensor gauge outfit 6 is for having the gauge outfit of sound and light of alarm, sensor gauge outfit 6 can directly demonstrate the situation of goaf internal temperature and/or gas (gas and carbon monoxide) by display window, outstation 7 can receive the numerical value that sensing element is monitored, and numerical value is transferred to ground data control centre by connection; Described ground data control centre 8 gathers down-hole upper corner monitoring device data monitored by acquisition server, and carries out D/A switch.
The operating principle of fireproof monitoring device in the actual mining face goaf of the present invention: goaf gas is example outside the upper corner filling bag to monitor, the probe 3 that is provided with sensing element 2 is inserted in the territory, goaf from upper corner filling bag 9 gaps, the accommodation space of gas in through hole enters probe 3 contacts with sensing element 2 in the territory, goaf, sensing element 2 is monitored the gas bearing capacity in the gases and is converted into electronic signal and sends the display unit that is positioned at ground to, and display unit is converted to numeral with electronic signal and observes for the people.Can be in ground monitoring face upper corner angle filling bag methane concentration and carbonomonoxide concentration situation, grasp the interior methane accumulation situation of filling bag and whether have spontaneous combustion ignition phenomenon to take place, thereby guarantee in time to the management of the gas of stope, fire prevention etc., administer and take measures necessary, have result of use and application value preferably.Fireproof monitoring device in the described actual mining face goaf of present embodiment can be applied in the safety in production of coal mining work plane, for the monitoring of stope upper corner gas, fire prevention etc. provides means convenient, effective, science.
The present invention is not limited to fireproof monitoring device in the described actual mining face goaf of above-described embodiment, the change of sensing element, and the change of probe shape, the change of number of openings is all within protection scope of the present invention on the probe.
It should be noted that at last: above each embodiment is not intended to limit only in order to technical scheme of the present invention to be described; Although the present invention has been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.
Claims (9)
1. fireproof monitoring device in the actual mining face goaf, it is characterized in that, comprise monitoring means and display unit, described monitoring means comprises having probe and the hollow strut rod of setting accommodation space, described probe is connected with support bar, and the hollow connection of the accommodation space of described probe and support bar, described probe is provided with the through hole that is communicated with accommodation space, be provided with the sensing element for monitor temperature and/or gas concentration in the described probe, described sensing element is connected with display unit by the data wire that is arranged in the hollow support rails.
2. according to fireproof monitoring device in the described actual mining face goaf of claim 1, it is characterized in that described probe head is tapered portion.
3. according to fireproof monitoring device in the described actual mining face goaf of claim 1, it is characterized in that the sensing element of described monitoring gas concentration is for being used for the sensing element of monitoring gas and/or carbon monoxide.
4. according to fireproof monitoring device in the described actual mining face goaf of claim 1, it is characterized in that described support bar bar is long to be 1.2-2m.
5. according to fireproof monitoring device in the described actual mining face goaf of claim 1, it is characterized in that described through hole is 10-40.
6. according to fireproof monitoring device in the described actual mining face goaf of claim 1, it is characterized in that described probe is threaded with the support bar bar.
7. according to fireproof monitoring device in claim 1 or the 6 described actual mining face goafs, it is characterized in that described support bar comprises that two joints are by the hollow stem that is threaded.
8. according to fireproof monitoring device in the described actual mining face goaf of claim 1, it is characterized in that described display unit comprises sensor gauge outfit, outstation and the ground data control centre that connects in turn.
9. fireproof monitoring device in the described actual mining face goaf according to Claim 8 is characterized in that described sensor gauge outfit is the gauge outfit with sound and light of alarm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100948546A CN103206246A (en) | 2013-03-22 | 2013-03-22 | Fire prevention monitor in stope face goaf |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013100948546A CN103206246A (en) | 2013-03-22 | 2013-03-22 | Fire prevention monitor in stope face goaf |
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| CN103206246A true CN103206246A (en) | 2013-07-17 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107449464A (en) * | 2017-07-24 | 2017-12-08 | 内蒙古工业大学 | A kind of coal monitoring system |
| CN108843397A (en) * | 2018-06-27 | 2018-11-20 | 贵州大学 | A kind of adjustable height mine monitoring probe |
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2013
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| US20080084913A1 (en) * | 2006-10-06 | 2008-04-10 | Halliburton Energy Services, Inc. | Method and apparatus for locating a localized temperature change in a workspace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107449464A (en) * | 2017-07-24 | 2017-12-08 | 内蒙古工业大学 | A kind of coal monitoring system |
| CN108843397A (en) * | 2018-06-27 | 2018-11-20 | 贵州大学 | A kind of adjustable height mine monitoring probe |
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Application publication date: 20130717 |