CN101718212B - Device for tracking and early warning outburst danger of mine coal and gas in real time - Google Patents
Device for tracking and early warning outburst danger of mine coal and gas in real time Download PDFInfo
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Abstract
The invention relates to a device for tracking and early warning outburst danger of mine coal and gas in real time, consisting of a data acquisition system, tracking analytic center for data transmission and real-time data and integrated early warning and comprises the following components: a microseismic signal transmission rod, an ultralow frequency microseismic signal sensing element, a microseismic signal acquisition main computer and a three-stage integrated early-warning analysis and specialist diagnosing device. By an ultralow frequency mine-pressure dynamic sensor and a gas sensor, real-time tracking acquisition of an outburst risk signal of the coal and the gas can be realized for the first time; and the three-stage integrated early-warning analysis and specialist diagnosing device is established. The technology solves the problem that the outburst crustal stress of the coal and the gas cannot be monitored in real time and can improve the predicating accuracy of the outburst danger of the coal and the gas by over 90 percent.
Description
Technical field
The present invention relates to a kind of monitoring device, is the device of early warning mine coal and gas outburst risk specifically.
Background technology
Coal and Gas Outburst are mash gas dynamic phenomenons very complicated under coal mine, are one of serious natural calamities in down-hole.Under the interference of artificial mining activity, in the coal seam, original balancing of stresses state is destroyed, and physical and mechanical properties of coal (coal mass strength) is by dying down by force, and strengthen relative with gas pressure of geostatic stress (containing selfweight stress, tectonic stress, bearing stress); Under the effect of geostatic stress, coal seam prototype structure failure, production crack, form a large amount of scope of freedoms, cause the adsorption gas that is rich in the coal seam fast, a large amount of desorbs, be transformed into free gas, form the huge gas bulbs of pressure, when this energy accumulating to a certain extent the time, the soft coal that orders about after fragmentation is broken through burden, and moment is ejected a large amount of gas (reaching millions of cubic meters) and coal (reaching ten thousand tons) from the coal seam, cause the fire damp dynamic phenomenon.The coal mining degree of depth is darker, and the energy that coal and Gas Outburst discharge is larger.When coal tunnel driving, raise advance and stone door punching coal, coal and Gas Outburst occur easily, coal and Gas Outburst also can occur in the stope of some mines.
Coal and Gas Outburst are world-famous puzzles; According to statistics, at present in the world 18 countries and regions such as nearly China, France, Russia, Poland, Japan have coal and Gas Outburst to occur.
One of coal and the Gas Outburst phenomenon is the most serious, harmfulness is maximum country occur in China in the world, coal occurs account for countries in the world with the Gas Outburst total degree and always give prominence to more than 1/3rd of number of times.Investigation statistics according to 2007, China has 19 provinces, 45 mineral bureaus, 647 pairs of state-owned emphasis mines, 403 pairs of Township Coal Mine, coal and Gas Outburst 14300 times occur altogether, dead 1266 people, be total to coal outburst quantity 815800t, average intensity of outburst is 27.0t/ time, accounts for 35% of the outstanding total degree in the world.The outstanding number of times that intensity of outburst surpasses 1000t reaches more than 100 times, and as on August 8th, 1975, self-sufficient and strategically located region mineral bureau three converged coal and the Gas Outburst that China's maximum occurs when the coal seam is exposed in one ore deposit, dam+280m horizontal galleries, and intensity of outburst reaches 12780t, gas emission 1400000m
3
Giving prominence to that China is most is coal and CH
4Outstanding, but rock few in number and CH are also arranged
4Outstanding, sandstone and CO
2Give prominence to and coal, sandstone and CO
2Outstanding.Along with the depth of excavation constantly increases, geostatic stress and gas pressure continue to increase, and the geological conditions of coal mining and technical condition are also increasingly sophisticated, and the number of coal and gas outburst mine increases, and number of times is frequent, and intensity strengthens.
Coal and gas outburst prevention treatment are global difficult problems always.Forecasting coal and Gas Outburst are importantly sought or definite sensitive parameter index and threshold thereof of predicting outburst danger.The achievement of the outburst prediction prediction research work that many decades is carried out all shows:
1. determine that the critical indicator that can adapt to each projecting mine is very difficult, different mines have different critical indicator values; Be exactly in same mine, same coal seam, in different dark, the different zones of adopting, the outburst danger criterion is not identical yet.
2. in recent years, prediction index having occurred does not exceed standard (as drillings amount, K yet
1), but outstanding example has occured in the mining process of reality.
The problems referred to above, be because:
1. in the different outstanding mining areas that has, outstanding three elements occur in impact: coal petrography environment (coal seam characteristic, geological structure), gas, geostatic stress are different, and people are difficult to find condition of coal seam occurrence identical mining area.
2. be exactly both in same mine, same coal seam, in different zones, in different adopting deeply, it is different that outstanding three elements occur in impact; Variation has occured in the character, the condition that are analytic target.
3. point prediction and excavation operation have individual interval time on space-time.Work team at least, a couple of days is just once predicted at most, obviously, the result of prediction in early stage is difficult to represent the coal petrography characteristic of later stage during excavation operation on space-time.
Summary of the invention
The object of the invention is to, the equipment of coal and gas outburst risk in a kind of real-time tracking early warning mine is provided, can be in time and the danger that reliable prediction work plane coal and Gas Outburst occur, cause great casualties when avoiding outstanding accident to occur.
The present invention is based on following design and form: coal and Gas Outburst are a kind of well dynamic phenomenons that can discharge huge energy, and so large power destruction occurs, and can there is no precursor information.The long-term work place study of applicant shows: before outstanding the generation, a large amount of anomalies is arranged, as wall fall slag, the serious compressive deformation of support, produce a large amount of coal reports (the deep coal petrography destroys the sound that produces), gas emission are suddenly big or suddenly small, the thickness in coal seam or structure (tomography, hardness) change etc.Therefore, control coal and Gas Outburst best bet are exactly can the relevant outstanding data (geostatic stress, gas) of continuous acquisition, by real-time analysis, predict the danger of generation coal and Gas Outburst.Obviously, if can research and develop a kind of can be real-time collect these precursor informations and analyze, process, judge and and the device of alarm, just can avoid the generation of great personnel casualty accidents.
Before this, applicant's patented technology: patent No. ZL200820029079.0, title " device of a kind of real time monitoring mine roof rock formation or mixed clay structure stability ", proposed the principle of mine surrounding rock failure: rock is a kind of fragile material of non-average, when rock is subject to concentrated stress effect failure, can produce elastic stress wave (microseismic signals).Because the rock right and wrong are homogeneous, structure has plane of weakness and flaw, and therefore, the stress intensity that can bear when destroying is different, and at first the part that plane of weakness and flaw are grown is destroyed, and the signal that produce this moment is more weak, and the energy of release is also smaller; The stress ratio that the reasonable part of intensity and material is born is larger, and the signal that produces during destruction is more intense, and the energy of release is also larger.This specific character when the applicant utilizes the rock failure mechanism of rock, and a kind of method that detects rock stability is provided, and obtained in practice successful checking.
The homogeneous fragile material of coal seam all right and wrong the same as rock, structure all contains a large amount of planes of weakness and flaw; But weak many of the strength ratio rock in coal seam, crack and joint be than abundant many of rock, and be rich in a large amount of absorption and free gas in the coal seam.The coal seam is more easily destroyed under identical effect of stress, many a little less than the microseismic signals that the microseismic signals that produces during destruction produces during than the rock failure mechanism of rock.According to the study, its frequency range is between 130Hz～800Hz, and dominant frequency is between 160Hz～680Hz.And the coal seam is softer, and the frequency of the microseismic signals of generation is lower, and the duration is just shorter, is only generally 15ms～40ms; Outburst hazard is larger.
The present invention will detect the monitoring principle of rock material failure dexterously, apply to coal and gas burst accident monitoring in mine, and the characteristics that elastic stress wave signal (microseismic signals) frequency is lower, signal is more weak, the duration is shorter that produce when being subjected to the effect of stress failure for the coal seam, researched and developed the ultralow frequency sensing element; Work out a suitable projecting coal bed sensor installation method of cover according to mining face under mine driving or process for stoping, developed corresponding transfer of data, real-time analysis, audio alert equipment and software.
The present invention is achieved in that main trace analysis center, comprehensive pre-warning by data collecting system, transfer of data, real time data forms.Structure and the function of each several part are:
1) data collecting system: be by the ultralow frequency ore deposit press the attitude sensor, the gas emission monitoring means consists of.According to coal and gas outburst mechanism: geostatic stress, gas factor have formed respectively real-time data acquisition unit.
A. the ultralow frequency ore deposit presses the attitude sensor---formed the variation of Real-time Collection coal seam geostatic stress by microseismic signals conductive bar, ultralow frequency microseismic signals sensing element, microseismic signals collection analysis main frame.
(1) microseismic signals conductive bar---select the collection point of microseismic signals, the conduction microseismic signals;
(2) ultralow frequency microseismic signals sensing element---receive the ultralow frequency microseismic signals, change microseismic signals into the signal of telecommunication;
(3) microseismic signals collection analysis main frame---the microseism ripple that receives ultralow frequency microseismic signals sensing element changes the signal of telecommunication, and the comparison of wave shape analysis is carried out in amplification, detection, and filtering mechanicalness noise signal carries out high-speed data acquisition, real-time analysis, judgement, demonstration.
B. face gas outburst amount monitoring means---formed by firedamp sensor and air velocity transducer.
2) this tcp data segment of transfer of data is comprised of following parts:
A. be transferred to ore deposit ground monitoring central server by metallic cable and optic fibre of looped network;
B. by the internet network with real-time Data Transmission to Remote analysis center server;
3) the trace analysis center of this real time data of trace analysis center of real time data has two:
A. ore deposit ground monitoring central server real-time tracking is analyzed: coal is installed on this server and Gas Outburst real-time tracking assayer diagnosing system software is touched piece.Touching piece by this software completes the processing of data, conclusion, analysis, judgement, early warning, sets up expert database, exports various forms, sends the functions such as various promptings.
B. Remote analysis center: at colliery scene owing to lacking full-time coal and gas outburst prevention treatment personnel, lack practical experience, production task heavily waits reason, often cause analysis result erroneous judgement, mistake are processed or the situation such as off one's guard, and delayed opportunity to coal and gas burst accident emergent management, become serious accident.Remote analysis center can find the deficiency of on-the-spot real-time tracking analysis software technically, and time update also provides technical support to field assay, processing.
4) comprehensive pre-warning
Comprehensive pre-warning is comprised of following parts:
A. by ground monitoring center, ore deposit real-time tracking analytical system, in real time, send warning from trend underground work district staff.
ore deposit ground monitoring center real-time analysis software is touched piece, data by the relevant outburst danger of continuous acquisition, when finding to have the outburst danger sign---when the ore deposit presses unexpected Showed Very Brisk/gas emission significantly to increase suddenly, the control centre sends early warning earthward, after ground maneuvers chamber person in charge agrees, ground real-time tracking analytical system, send instruction by data transmission system to the language alarm equipment in underground work place, audio alert equipment is opened alarm lamp and is sent prompting with the voice mode prompting to the operation area personnel, require personnel to leave fast the hazardous area, calamity is kept away in the place of taking refuge to appointment.
Ore deposit ground monitoring center real-time analysis software is touched piece, is monitoring the variation of operation area precarious position constantly, issues warning message or ground leader's instruction to the personnel of taking refuge at any time.After danger disappears, issue the instruction of resuming production.
B. send alarm to the related personnel in modes such as SMSs according to grade, the post division of labor that urgency and the miner of classes of dangerous degree, degree of danger does personnel by the SMS platform of ore deposit ground monitoring center real-time analysis software.
The present invention is directed to the microseismic signals characteristics that discharge when micro-cracks occurs in the coal seam, researched and developed the reception of transducing signal and followed dominant frequency at the ultralow frequency microseismic signals sensing element of 130Hz～680Hz scope; Softer for the coal seam, the frequency of the microseismic signals of generation is lower, and signal is more weak, and the duration is just shorter (is only generally that 15ms～40ms), outburst hazard is larger characteristics just, have developed ultralow frequency small-signal data high-speed sample circuit; Substantially reached filtering environmental noise signal interference in the environment of various artificial and mechanical work, identify the purpose of the shock wave signal that the coal petrography micro-cracks discharges, solved the difficult problem that the size, degree of danger of geostatic stress in coal and gas outburst prevention treatment can't Real-time Collection.On the basis of projecting mine having been done a large amount of contrast investigations, work place study, labor gas emission and microseismic signals development and change rule and the characteristics at normal district and outburst dangerous area, one cover Automatic-searching or definite analysis Mathematical Modeling that adapts to the criterion index of the prediction outburst danger under the monitoring mine ambient conditions are proposed, solved the dangerous criterion of projecting mine different, need a large amount of human and material resources of cost to go a difficult problem of seeking, and developed corresponding expert diagnostic system software.
The achievement of native system is:
One, be based upon and receive the coal seam and destroyed by the concentrated stress effect and on the elastic stress wave that produces, the degree of destroying is different, the power of signal is also different, therefore, this technology has solved the problem that geostatic stress in coal and Gas Outburst can't Real-Time Monitoring, makes mine coal and gas burst accident real-time estimate become possibility.
They are two years old, the microseismic signals that discharges when destroying take the Real-time Collection coal petrography and tunnel gas emission are as analytic target, with flutter catch geostatic stress and tunnel gas emission be changed to suddenly purpose, the mechanism condition that meets coal and Gas Outburst, solved in the Software for Design of outstanding continuous monitor system, the adaptability problem of analytical method, make the equipment of developing can be applied to different projecting mines, special exploitation is fit to the projecting equipment of a certain mine, the forecasting coal of determining suitable this mine and the criterion index of Gas Outburst and do not need for this reason.
Its three, set up three grades of early warning analysis mechanism
A. series sensor and substation real-time early warning are the first order, mainly undertake real-time data acquisition, when finding that coal seam characteristic (geostatic stress or gas) occurs to change suddenly, realize reporting to the police on the spot, cutting off the power supply control task;
B. ore deposit ground monitoring analysis center is the second level, coal and Gas Outburst real-time tracking assayer diagnosing system software are installed on this server, by this software complete data processing, conclusion, analysis, judgement, early warning, set up expert database, export various forms, send various prompt facilities.
C. Remote analysis center is the third level; Obtain real time data by the internet from ore deposit ground monitoring central server, do some assistant analysis, processing by coal and gas outburst prevention treatment expert and researcher on the basis of coal and Gas Outburst real-time tracking assayer diagnostic system,
At colliery scene owing to lacking full-time coal and gas outburst prevention treatment personnel, lack practical experience, production task heavily waits reason, often causes analysis result erroneous judgement, mistake are processed or the situation such as off one's guard, and delayed opportunity to coal and gas burst accident emergent management, and become serious accident.The troop that is comprised of protrusion-dispelling expert or full-time researcher in time finds the deficiency of on-the-spot real-time tracking analytical system technically, and time update also provides technical support to field assay, processing.
The present invention is applicable to the colliery of all coals and Gas Outburst danger, and the microseismic signals and the tunnel gas emission that discharge when destroying in view of coal petrography are analytic target, and the degree of destruction is different, the strong and weak difference of microseismic signals, and the outburst hazard coal-bed gas is also different ...The invention solves the problem that geostatic stress in coal and Gas Outburst can't Real-Time Monitoring, make real-time estimate mine coal and gas outburst risk become possibility, the forecasting accuracy of coal and gas outburst risk can be brought up to more than 90%, reached world lead level.
Description of drawings
Fig. 1 ultralow frequency ore deposit presses attitude sensor overall structure schematic diagram;
Three grades of real-time tracking analyses of Fig. 2 coal and gas outburst risk, comprehensive pre-warning structural representation
Fig. 3 driving face (gallery, go up a hill, crossdrift) outburst hazard real-time tracking prediction installation of sensors arrangement diagram
Fig. 4 stope outburst hazard real-time tracking prediction installation of sensors arrangement diagram
In figure, 1 microseismic signals data conductive bar, 2 ultralow frequency microseismic signals sensing elements, 3 passage microseismic signals collection analysis main frames, 4 firedamp sensors, 5 air velocity transducers, 6 phonetic alarms, 7 ground communications interfaces, 8 ore deposit ground monitoring analysis centers, 9 Remote analysis centers.
The specific embodiment
Below in conjunction with accompanying drawing, take driving face as example, narrate embodiments of the invention
The present embodiment is comprised of trace analysis center, the comprehensive pre-warning of data collecting system, transfer of data, real time data.Said data collecting system, be by the ultralow frequency ore deposit press the attitude sensor, the gas emission monitoring means consists of.
Fig. 1 is the overall structure that the ultralow frequency ore deposit presses the attitude sensor---mainly by microseismic signals data conductive bar 1, and ultralow frequency microseismic signals sensing element 2,4 passage microseismic signals collection analysis main frames 3, firedamp sensor 4 consists of.In figure 1
#, 2
#, 3
#, 4
#--------is 4 microseismic signals sensing heads.One end of microseismic signals conductive bar 1 inserts in the coal seam, and the other end is installed ultralow frequency microseismic signals sensing element 2; With shielded cable, ultralow frequency microseismic signals sensing element 2 is connected with 8 passage microseismic signals collection analysis main frames 3, coordinate with firedamp sensor 4, air velocity transducer 5, phonetic alarm 6, formed work plane coal and Gas Outburst real-time tracking prediction monitoring means (first order).
Fig. 2 is coal and three grades of real-time tracking analyses of gas outburst risk, comprehensive pre-warning structure.
Have: ground communications interface 7, ore deposit ground monitoring analysis center 8, Remote analysis center 9.
When finding that coal seam characteristic (geostatic stress or gas) occurs to change suddenly, work plane coal and Gas Outburst real-time tracking prediction monitoring means 3 (first order) realize reporting to the police on the spot, cutting off the power supply control task.Simultaneously, with first analysis result and real time data, by ground communications interface 7, send ore deposit ground monitoring analysis center (8) (second level) to, coal and Gas Outburst real-time tracking assayer diagnosing system software are installed on ore deposit ground monitoring analysis center server, by this software complete data processing, conclusion, analysis, judgement, early warning, set up expert database, export various forms, send various prompt facilities.When having predicted when occuring coal with Gas Outburst danger, according to danger classes, coal and Gas Outburst real-time tracking assayer diagnosing system software by installing on ore deposit ground monitoring analysis center server send instruction; Phonetic alarm 6 by work plane is installed sends audio alert, and the personnel that remind the work plane operation area keep away calamity or are retracted into ground to the cavern of taking refuge of appointment.When reaching balancing of stresses, when outburst hazard reduced, the phonetic alarm in the cavern of taking refuge sent voice suggestion, resumes production.Simultaneously with real time data and analysis result, send Remote analysis center 9 (third level) to; Do some assistant analysis, processing by coal and Gas Outburst expert or professional researcher on the basis of pit coal and Gas Outburst real-time tracking assayer diagnostic system.And degree or analysis result that coal and Gas Outburst danger may occur are notified the relevant personnel to ore deposit side with note, mail or liaison mode.
Fig. 3 is the mounting arrangements of driving face (gallery, go up a hill, crossdrift) outburst hazard real-time tracking prediction sensor.When will be in dangerous seam with potential, when tunneling a tunnel (gallery, go up a hill, crossdrift), press the arrangement diagram sensor installation; At first at 45 meters of distance work plane moraine head, each makes a call to a diameter 42mm at roadway's sides with electric coal drill, and the degree of depth is the boring (coal seam that the degree of depth is relevant with the characteristic in coal seam, softer, more broken, drilling depth is just darker) of 2～2.5m, with 1
#, 2
#Microseismic signals conductive bar 1 is squeezed in coal seam at the bottom of the hole, and the end outside microseismic signals data acquisition bar bar hole is installed ultralow frequency microseismic signals sensing element 2, respectively with the 2 access microseismic signals collections of ultralow frequency microseismic signals sensing element, analyze 1 of main frame 3
#, 2
#Passage.At 30 meters of distance work plane moraine head, then each makes a call to a diameter 42mm at roadway's sides to use electric coal drill, and the degree of depth is the boring of 2～2.5m, with 3
#, 4
#Microseismic signals conductive bar 1 is squeezed in coal seam at the bottom of the hole, and the end outside microseismic signals data acquisition transmission rod hole is installed microseismic signals sensing element 2, respectively with the 2 access microseismic signals collections of ultralow frequency microseismic signals sensing element, analyze 3 of main frame 3
#, 4
#Passage; At 15 meters of distance work plane moraine head, then each makes a call to a diameter 42mm at roadway's sides to use electric coal drill, and the degree of depth is the boring of 2～2.5m, with 5
#, 6
#Microseismic signals conductive bar 1 is squeezed in coal seam at the bottom of the hole, and the end outside microseismic signals data acquisition transmission rod hole is installed ultralow frequency microseismic signals sensing element 2, respectively with the 2 access microseismic signals collections of ultralow frequency microseismic signals sensing element, analyze 5 of main frame 3
#, 6
#Passage;
At distance work plane moraine head 20 meters, a firedamp sensor 4 and air velocity transducer 5 are installed, in the compact district (place that maybe can look at straight) of personnel's work, 1 amoyese sound alarm 6 are installed; In the cavern of taking refuge away from work plane, one amoyese sound alarm 6 is installed.
So just a coal and the real-time monitoring means of gas outburst risk have been formed at driving face.
Fig. 4 is the mounting arrangements of stope outburst hazard real-time tracking prediction sensor.When stope has outburst danger sexual needs monitoring, by mounting arrangements sensor shown in Figure 4.At stope air intake, return airway, apart from work plane 50m place, at a distance of 50m, play the boring of 8 dark 2～2.5m with electric coal drill, microseismic signals conductive bar 1 is squeezed in coal seam at the bottom of the hole, an end outside microseismic signals data acquisition transmission rod hole is installed microseismic signals sensing element 2, with 4 ultralow frequency microseismic signals sensing elements, the 2 access microseismic signals collections in air intake lane, analyze 2 of main frame 3
#, 4
#,, 6
#, 8
#Passage is with 4 ultralow frequency microseismic signals sensing elements 2 access microseismic signals collections of return airway, analyze 1 of main frame 3
#, 3
#,, 5
#, 7
#Passage; A firedamp sensor 4 and air velocity transducer 5 are installed by the place at return airway; In the air intake lane personnel compact district (require: the staff can look at straight) of working, 1 amoyese sound alarm is installed, 1 amoyese sound alarm is installed by the cavern of taking refuge in the air intake lane.
So just a coal and gas outburst risk Real-Time Monitoring unit have been formed at stope.
The installation of sensors method for arranging
A. install as shown in Figure 2 at driving face (gallery, go up a hill, crossdrift) outburst prediction sensor:
1) at distance work plane moraine head 15m place, spacing 15m installs 2 ore deposits and presses the attitude sensor.
2) in work plane moraine head side and return side, each installs 1 group of wind speed and high-low concentration methane sensor.
3) when work plane is pushed ahead 15m, the ore deposit of removing the work rear presses wind speed and the firedamp sensor at attitude sensor and moraine head place, is advanced to apart from moraine head 15m place.
4) near 20 meters of work plane, 1 amoyese sound alarm (requiring the operating personnel can look at alarm straight, so that see alarm light) is installed; In shelter, outstanding tunnel, 1 amoyese sound alarm is installed.
5) the said equipment is connected with ground central station by transmission system, so that real time data directly turns to Surveillance center.
B. outstanding at stope, the installation of prediction sensor.As shown in Figure 3:
1) in tunnel, stope up and down apart from work plane 50m place, 50m apart, install 4 groups totally 8 ore deposits press the attitude sensor, respectively install 4 at air intake and return airway.
2) at return airway, 1 group of wind speed and high-low concentration methane sensor are installed.
3), remove near after the sensor of work plane and move during less than 10m apart from dynamic pickup when work plane.
4) on work plane personnel compact district or fully-mechanized mining working air intake lane emulsion power pack working platform, 1 amoyese sound alarm is installed; In this work plane shelter, 1 amoyese sound alarm is installed.
5) the said equipment is connected with ground central station by transmission system, so that real time data directly turns to Surveillance center.
Claims (3)
1. the equipment of a real-time tracking early warning mine coal and gas outburst risk, is characterized in that, is comprised of trace analysis center, the comprehensive pre-warning of data collecting system, transfer of data, real time data;
1) said data collecting system, be by the ultralow frequency ore deposit press the attitude sensor, the gas emission monitoring means consists of;
A. the ultralow frequency ore deposit presses the attitude sensor---formed by microseismic signals conductive bar (1), ultralow frequency microseismic signals sensing element (2), microseismic signals collection analysis main frame (3); One end of microseismic signals conductive bar (1) inserts in the coal seam, and the other end is installed ultralow frequency microseismic signals sensing element (2); Ultralow frequency microseismic signals sensing element (2) is connected with microseismic signals collection analysis main frame (3), and the real-time tracking that has formed work plane coal and Gas Outburst geostatic stress factor with phonetic alarm (6) is predicted monitoring means;
B. face gas outburst amount monitoring means---formed by firedamp sensor (4) and air velocity transducer (5), phonetic alarm (6), air velocity transducer is measured the mean wind speed of air flow in laneway, calculate the air quantity of unit interval in the tunnel, air quantity and gas density multiply each other and calculate gas emission in the unit interval of tunnel, by the Dynamic Variation Analysis coal of unit of analysis gas emission in the time and the danger of Gas Outburst;
2) described transfer of data is comprised of following parts:
A. be transferred to ore deposit ground monitoring central server by metallic cable and optic fibre of looped network;
B. by the internet network, with real-time Data Transmission to Remote analysis center server;
3) there are ore deposit ground monitoring central server and Remote analysis center server in the trace analysis center of described real time data;
4) described comprehensive pre-warning is comprised of the SMS platform of ground monitoring center, ore deposit real-time tracking analytical system and ore deposit ground monitoring center real-time analysis software, phonetic warning system and remote analysis center mail, note, alarm call.
2. the equipment of real-time tracking early warning mine coal and gas outburst risk according to claim 1, it is characterized in that: the dominant frequency scope of said ultralow frequency microseismic signals sensing element (2) is between 160Hz～680Hz.
3. the equipment of real-time tracking early warning mine coal and gas outburst risk according to claim 1, it is characterized in that: the ore deposit ground monitoring central server at the trace analysis center of said real time data is installed with the software module of coal and Gas Outburst real-time tracking assayer diagnostic system on this server.
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