CN104847410A - Mine comprehensive intelligent gas detection early warning method and system - Google Patents
Mine comprehensive intelligent gas detection early warning method and system Download PDFInfo
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- CN104847410A CN104847410A CN201510176480.1A CN201510176480A CN104847410A CN 104847410 A CN104847410 A CN 104847410A CN 201510176480 A CN201510176480 A CN 201510176480A CN 104847410 A CN104847410 A CN 104847410A
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- explosion limit
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
Abstract
The invention relates to the field of explosion prevention and explosion suppression under mines, provides a mine comprehensive intelligent gas detection early warning method and a mine comprehensive intelligent gas detection early warning system and solves the problem of low detection accuracy caused by limit of the current gas detection method. The system comprises a data acquisition module and a controller. The data acquisition module is used for acquiring environment information of a coal mine, and the controller comprises an initialization module, a preliminary judgment module, a comprehensive judgment module and a complementary judgment module. By applying the mine comprehensive intelligent gas detection early warning method and the mine comprehensive intelligent gas detection early warning system, precise detection on hidden danger of gas explosion under the coal mine is realized, and thus gas explosion can be prevented or inhibited by taking pertinent measures on the basis of the detection information.
Description
Technical field
The present invention relates to ore deposit downhole anti-explosion, datonation-inhibition field, particularly one mining comprehensive intelligent gas boring and surveying method for early warning and system.
Background technology
Existing colliery detecting early-warning technology is mainly based on the detection of independent gas density or special gas detection separately.Independent gas density detection can provide gas density information for system, and after exceeding the early warning value preset, its follow-up corresponding control device can be performed, thus suppresses gas explosion.
Existing Detection Techniques means have following defect:
(1) because gas explosion limits is not unalterable, data are relevant to temperature, pressure, Dust Concentration etc. for it, and therefore, existing measurement accurately can not judge whether the gas density of surveying is in gas explosion concentration limit at that time.
(2) owing to adopting CO, CO
2detect separately Deng probe, therefore only can provide independent information, cannot comprehensive descision be carried out.The generation of such as CO is relevant with the spontaneous combustion of coal dust hypoxemia, but independent measurement cannot accurately judge coal spontaneous combustion position.If the detection of CO Pressure, Concentration, Temperature combines, coal spontaneous combustion phenomenon can be found and judge self-ignition point, thus according to existing gas density, blast possibility occurrence being judged accurately.
(3) because existing detection means cannot provide enough detection accuracies, so the detection of prior art means may cause failing to report, report by mistake or the excessive problem such as warning, harmful effect is caused to actual production environment under colliery.
Summary of the invention
[technical problem that will solve]
The object of this invention is to provide a kind of mining comprehensive intelligent gas boring and surveying method for early warning and system, to solve current gas detecting method due to the not high problem of the detection accuracy that there is limitation and cause.
[technical scheme]
The present invention is achieved by the following technical solutions.
First the present invention relates to a kind of mining comprehensive intelligent gas boring and surveying method for early warning, and the method comprises:
Steps A: the explosion limit under the explosion limit at varying environment temperature, different coal gas pressure, explosion limit under different Dust Concentration are set;
Step B: collection of coal mine environmental information, described environmental information at least comprises gas density, environment temperature, Dust Concentration, pressure of coalbed gas;
Step C: judge whether the environment temperature collected meets the first Rule of judgment, judge whether the pressure of coalbed gas collected meets the second Rule of judgment, judge whether the Dust Concentration collected meets the 3rd Rule of judgment, described first Rule of judgment is that temperature is more than or equal to temperature threshold, described second Rule of judgment is that pressure of coalbed gas is more than or equal to pressure threshold, described 3rd Rule of judgment is that Dust Concentration is more than or equal to Dust Concentration threshold value, if environment temperature, pressure of coalbed gas, Dust Concentration does not all meet corresponding Rule of judgment, then point out environment without hidden peril of explosion and exit this method flow process, otherwise then point out environment be not suitable for surviving and perform step D and/or step e,
Step D: the explosion limit searched under the environment temperature collected obtains the first explosion limit, the explosion limit searched under the pressure of coalbed gas collected obtains the second explosion limit, the explosion limit searched under the Dust Concentration collected obtains the 3rd explosion limit, judge whether the gas density collected belongs to the first explosion limit, whether belong to the second explosion limit, whether belong to the 3rd explosion limit, if gas density does not belong to the first explosion limit, second explosion limit and the 3rd explosion limit, then point out environment without hidden peril of explosion, otherwise then point out environment to have hidden peril of explosion,
Step e: judge whether the gas density collected is more than or equal to gas density threshold value, if it is points out environment to have hidden peril of explosion.
As one preferred embodiment, described temperature threshold is 100 DEG C, and described pressure threshold is 0.3MPa, and described Dust Concentration threshold value is 25g/m
3, described gas density threshold value is 3%.
As another preferred embodiment, in described step D: if the gas density collected belongs to the first explosion limit, then point out environment temperature too high, if the gas density collected belongs to the second explosion limit, then point out pressure of coalbed gas excessive, if the gas density collected belongs to the 3rd explosion limit, then point out Dust Concentration too high.
As another preferred embodiment, in described step e, if gas density is more than or equal to gas density threshold value, then point out gas density too high.
As another preferred embodiment, the coal seam gas in described steps A comprises gas, CO and CO
2.
As another preferred embodiment, described information is shown by display device.
The invention still further relates to a kind of mining comprehensive intelligent gas boring and surveying early warning system, this system comprises data acquisition module and controller, described data acquisition module is used for collection of coal mine environmental information, described environmental information at least comprises gas density, environment temperature, Dust Concentration, pressure of coalbed gas, and described controller comprises:
Initialization module, for arranging the explosion limit under the explosion limit at varying environment temperature, the explosion limit under different coal gas pressure, different Dust Concentration;
Preliminary judge module, for judging whether the environment temperature collected meets the first Rule of judgment, judge whether the pressure of coalbed gas collected meets the second Rule of judgment, judge whether the Dust Concentration collected meets the 3rd Rule of judgment, described first Rule of judgment is that temperature is more than or equal to temperature threshold, described second Rule of judgment is that pressure of coalbed gas is more than or equal to pressure threshold, described 3rd Rule of judgment is that Dust Concentration is more than or equal to Dust Concentration threshold value, if environment temperature, pressure of coalbed gas, Dust Concentration does not all meet corresponding Rule of judgment, then point out environment without hidden peril of explosion, otherwise then notify comprehensive judgment module and/or supplementary judge module,
Comprehensive judgment module, comprise and search unit and judging unit, described unit of searching obtains the first explosion limit for the explosion limit searched under the environment temperature that collects, the explosion limit searched under the pressure of coalbed gas collected obtains the second explosion limit, the explosion limit searched under the Dust Concentration collected obtains the 3rd explosion limit, described judging unit is for judging whether the gas density collected belongs to the first explosion limit, whether belong to the second explosion limit, whether belong to the 3rd explosion limit, if gas density does not belong to the first explosion limit, second explosion limit and the 3rd explosion limit, then point out environment without hidden peril of explosion, otherwise then point out environment to have hidden peril of explosion,
Supplementing judge module, for judging whether the gas density collected is more than or equal to gas density threshold value, if it is pointing out environment to have hidden peril of explosion.
As one preferred embodiment, described comprehensive judgment module is configured to: if the gas density collected belongs to the first explosion limit, then point out environment temperature too high; If the gas density collected belongs to the second explosion limit, then point out pressure of coalbed gas excessive; If the gas density collected belongs to the 3rd explosion limit, then point out Dust Concentration too high,
Described supplementary judge module is configured to: if gas density is more than or equal to gas density threshold value, then point out gas density too high.
As another preferred embodiment, described data acquisition module at least comprises gas concentration sensor, O
2concentration sensor, CO concentration sensor, CO
2concentration sensor, temperature pick up and Dust Concentration sensor.
As another preferred embodiment, this system also comprises display module, and described display module is used for display reminding information.
[beneficial effect]
The technical scheme that the present invention proposes has following beneficial effect:
The present invention by carrying out comprehensive descision to the various ambient parameters detected, achieves the accurately detecting to gas explosion hidden danger under colliery, thus treatment measures targetedly can be taked to prevent gas explosion or to suppress based on detection information.
Accompanying drawing explanation
The structured flowchart of the mining comprehensive intelligent gas boring and surveying early warning system that Fig. 1 provides for embodiments of the invention one;
The flow chart of the mining comprehensive intelligent gas boring and surveying method for early warning that Fig. 2 provides for embodiments of the invention two.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, clear, complete description is carried out to the specific embodiment of the present invention, obviously, described embodiment is a part of embodiment of the present invention, instead of whole embodiment, neither limitation of the present invention.Based on embodiments of the invention, those of ordinary skill in the art, not paying the every other embodiment obtained under creative work prerequisite, belong to protection scope of the present invention.
The structured flowchart of the mining comprehensive intelligent gas boring and surveying early warning system that Fig. 1 provides for the embodiment of the present invention one.As shown in Figure 1, this early warning system comprises data acquisition module 1 and controller 2, described data acquisition module 1 is for collection of coal mine environmental information, this environmental information comprises gas density, environment temperature, Dust Concentration, pressure of coalbed gas, and controller 2 comprises initialization module 21, preliminary judge module 22, comprehensive judgment module 23, supplements judge module 24.
Initialization module 21 is for arranging the explosion limit under the explosion limit at varying environment temperature, the explosion limit under different coal gas pressure, different Dust Concentration.
Preliminary judge module 22 is configured to: judge whether the environment temperature collected meets the first Rule of judgment, judge whether the pressure of coalbed gas collected meets the second Rule of judgment, judge whether the Dust Concentration collected meets the 3rd Rule of judgment, wherein the first Rule of judgment is that temperature is more than or equal to temperature threshold, second Rule of judgment is that pressure of coalbed gas is more than or equal to pressure threshold, 3rd Rule of judgment is that Dust Concentration is more than or equal to Dust Concentration threshold value, if environment temperature, pressure of coalbed gas, Dust Concentration does not all meet corresponding Rule of judgment, then point out environment without hidden peril of explosion, otherwise then notify comprehensive judgment module 23 and supplementary judge module 24.
Comprehensive judgment module 23 comprises searches unit and judging unit, wherein search unit to be configured to: when after the notice receiving preliminary judge module 22, the explosion limit searched under the environment temperature collected obtains the first explosion limit, the explosion limit searched under the pressure of coalbed gas collected obtains the second explosion limit, the explosion limit searched under the Dust Concentration collected obtains the 3rd explosion limit, judging unit is configured to: judge whether the gas density collected belongs to the first explosion limit, whether belong to the second explosion limit, whether belong to the 3rd explosion limit, if gas density does not belong to the first explosion limit, second explosion limit and the 3rd explosion limit, then point out environment without hidden peril of explosion, otherwise then point out environment to have hidden peril of explosion.Particularly, judging unit is also configured to: if the gas density collected belongs to the first explosion limit, then point out environment temperature too high, if the gas density collected belongs to the second explosion limit, then point out pressure of coalbed gas excessive, if the gas density collected belongs to the 3rd explosion limit, then point out Dust Concentration too high.
Supplement judge module 24 to be configured to: when after the notice receiving preliminary judge module 22, judge whether the gas density collected is more than or equal to gas density threshold value, if it is point out environment have hidden peril of explosion and point out gas density too high.
Adopting the system that provides of embodiment one to realize the method for mining comprehensive intelligent gas boring and surveying early warning can with reference to following concrete grammar embodiment.
The method flow diagram of the mining comprehensive intelligent gas boring and surveying early warning system that Fig. 2 provides for the embodiment of the present invention two.As shown in Figure 2, the method comprising the steps of S1, to step S5, is described in detail to above-mentioned steps below respectively.
Step S1: initialize the explosion limit under varying environment information.
Step S1 comprises the explosion limit, the explosion limit under different coal gas pressure, the explosion limit under different Dust Concentration that arrange at varying environment temperature, and in the present embodiment, coal seam gas comprises gas, CO and CO
2.Explosion limit at varying environment temperature comprises upper explosion limit and lower explosive limit, table 1 is the explosion limit under various environment temperature, as shown in table 1, giving environment temperature in table 1 is 20 DEG C, 100 DEG C, 300 DEG C, 600 DEG C, 700 DEG C, explosion limit at 900 DEG C, wherein environment temperature is the upper explosion limit of 20 DEG C is 0.056, lower explosive limit is 0.143, for the explosion limit under each environment temperature between 20 DEG C and 100 DEG C, explosion limit between 100 DEG C and 300 DEG C under each environment temperature, explosion limit between 300 DEG C and 600 DEG C under each environment temperature, explosion limit between 600 DEG C and 700 DEG C under each environment temperature, explosion limit between 700 DEG C and 900 DEG C under each environment temperature can adopt least-squares algorithm to carry out data fitting respectively and obtain.
Explosion limit under the various environment temperature of table 1
Explosion limit under different coal gas pressure comprises upper explosion limit and lower explosive limit, and table 2 is the explosion limit under various pressure of coalbed gas, as shown in table 2, give in table 2 pressure of coalbed gas be 0.1MPa,
Explosion limit under 1MPa, 5MPa, 12.5MPa, upper explosion limit when wherein pressure of coalbed gas is 0.1MPa is 0.056, lower explosive limit is 0.143, least-squares algorithm can be adopted respectively to carry out data fitting obtain for the explosion limit under each pressure of coalbed gas between the explosion limit under each pressure of coalbed gas between the explosion limit under each pressure of coalbed gas between 0.1MPa and 12.5MPa, 1MPa and 5MPa, 5MPa and 12.5MPa.
Explosion limit under the various pressure of coalbed gas of table 2
Explosion limit under different Dust Concentration comprises upper explosion limit and lower explosive limit, and table 3 is the explosion limit under various Dust Concentration.As shown in table 3, giving Dust Concentration in table 3 is 0g/m
3(namely without coal dust), 30g/m
3, 50g/m
3, 60g/m
3under explosion limit, wherein Dust Concentration is 0g/m
3time upper explosion limit be 0.056, lower explosive limit is 0.143, for 0g/m
3with 30g/m
3between explosion limit, 30g/m under each Dust Concentration
3with 50g/m
3between explosion limit, 50g/m under each Dust Concentration
3with 60g/m
3between explosion limit under each Dust Concentration least-squares algorithm can be adopted respectively to carry out data fitting obtain.
Explosion limit under the various Dust Concentration of table 3
Need in addition to illustrate, step S1 also can perform after step S2 performs.
Step S2: collection of coal mine environmental information.
The coal mine environment information gathered in step S2 comprises gas density, environment temperature, Dust Concentration, pressure of coalbed gas.In the present embodiment, coal seam gas comprises gas, CO and CO
2.
Step S3: the coal mine environment information according to collecting tentatively judges.
In step S3, judge whether the environment temperature collected meets the first Rule of judgment, judge whether the pressure of coalbed gas collected meets the second Rule of judgment, judge whether the Dust Concentration collected meets the 3rd Rule of judgment, wherein the first Rule of judgment is that temperature is more than or equal to temperature threshold, second Rule of judgment is that pressure of coalbed gas is more than or equal to pressure threshold, 3rd Rule of judgment is that Dust Concentration is more than or equal to Dust Concentration threshold value, if the environment temperature collected does not meet the first Rule of judgment, the pressure of coalbed gas collected does not meet the second Rule of judgment, the Dust Concentration collected does not meet the 3rd Rule of judgment, then point out environment without hidden peril of explosion and exit this method flow process, otherwise then point out environment be not suitable for surviving and perform step S4 and step S5.In the present embodiment, temperature threshold is 100 DEG C, and pressure threshold is 0.3MPa, and Dust Concentration threshold value is 25g/m
3.
Step S4: the coal mine environment information according to collecting carries out comprehensive descision.
In step S4, based on the explosion limit arranged in step S1, the explosion limit searched under the environment temperature collected obtains the first explosion limit, the explosion limit searched under the pressure of coalbed gas collected obtains the second explosion limit, the explosion limit searched under the Dust Concentration collected obtains the 3rd explosion limit, judge whether the gas density collected belongs to the first explosion limit, whether belong to the second explosion limit, whether belong to the 3rd explosion limit, if gas density is not in the first explosion limit, also not in the second explosion limit and the 3rd explosion limit, then point out environment without hidden peril of explosion, otherwise then point out environment to have hidden peril of explosion.Particularly, if the gas density collected belongs to the first explosion limit, then point out environment temperature too high; If the gas density collected belongs to the second explosion limit, then point out pressure of coalbed gas excessive; If the gas density collected belongs to the 3rd explosion limit, then point out Dust Concentration too high.
Step S5: carry out supplementing judgement according to the coal mine environment information collected.
In step S5, judge whether the gas density collected is more than or equal to gas density threshold value, if gas density is more than or equal to gas density threshold value, points out environment to have hidden peril of explosion and point out gas density too high, in the present embodiment, gas density threshold value is 3%.
As can be seen from the above embodiments, the embodiment of the present invention is by carrying out comprehensive descision to the various ambient parameters detected, achieve the accurately detecting to gas explosion hidden danger under colliery, thus treatment measures targetedly can be taked to prevent gas explosion or to suppress based on detection information.
Claims (10)
1. a mining comprehensive intelligent gas boring and surveying method for early warning, is characterized in that comprising:
Steps A: the explosion limit under the explosion limit at varying environment temperature, different coal gas pressure, explosion limit under different Dust Concentration are set;
Step B: collection of coal mine environmental information, described environmental information at least comprises gas density, environment temperature, Dust Concentration, pressure of coalbed gas;
Step C: judge whether the environment temperature collected meets the first Rule of judgment, judge whether the pressure of coalbed gas collected meets the second Rule of judgment, judge whether the Dust Concentration collected meets the 3rd Rule of judgment, described first Rule of judgment is that temperature is more than or equal to temperature threshold, described second Rule of judgment is that pressure of coalbed gas is more than or equal to pressure threshold, described 3rd Rule of judgment is that Dust Concentration is more than or equal to Dust Concentration threshold value, if environment temperature, pressure of coalbed gas, Dust Concentration does not all meet corresponding Rule of judgment, then point out environment without hidden peril of explosion and exit this method flow process, otherwise then point out environment be not suitable for surviving and perform step D and/or step e,
Step D: the explosion limit searched under the environment temperature collected obtains the first explosion limit, the explosion limit searched under the pressure of coalbed gas collected obtains the second explosion limit, the explosion limit searched under the Dust Concentration collected obtains the 3rd explosion limit, judge whether the gas density collected belongs to the first explosion limit, whether belong to the second explosion limit, whether belong to the 3rd explosion limit, if gas density does not belong to the first explosion limit, second explosion limit and the 3rd explosion limit, then point out environment without hidden peril of explosion, otherwise then point out environment to have hidden peril of explosion,
Step e: judge whether the gas density collected is more than or equal to gas density threshold value, if it is points out environment to have hidden peril of explosion.
2. mining comprehensive intelligent gas boring and surveying method for early warning according to claim 1, it is characterized in that described temperature threshold is 100 DEG C, described pressure threshold is 0.3MPa, and described Dust Concentration threshold value is 25g/m
3, described gas density threshold value is 3%.
3. mining comprehensive intelligent gas boring and surveying method for early warning according to claim 1, it is characterized in that in described step D: if the gas density collected belongs to the first explosion limit, then point out environment temperature too high, if the gas density collected belongs to the second explosion limit, then point out pressure of coalbed gas excessive, if the gas density collected belongs to the 3rd explosion limit, then point out Dust Concentration too high.
4. mining comprehensive intelligent gas boring and surveying method for early warning according to claim 1, is characterized in that in described step e, if gas density is more than or equal to gas density threshold value, then points out gas density too high.
5., according to described mining comprehensive intelligent gas boring and surveying method for early warning arbitrary in Claims 1-4, it is characterized in that the coal seam gas in described steps A comprises gas, CO and CO
2.
6., according to described mining comprehensive intelligent gas boring and surveying method for early warning arbitrary in Claims 1-4, it is characterized in that described information is shown by display device.
7. a mining comprehensive intelligent gas boring and surveying early warning system, it is characterized in that comprising data acquisition module and controller, described data acquisition module is used for collection of coal mine environmental information, described environmental information at least comprises gas density, environment temperature, Dust Concentration, pressure of coalbed gas, and described controller comprises:
Initialization module, for arranging the explosion limit under the explosion limit at varying environment temperature, the explosion limit under different coal gas pressure, different Dust Concentration;
Preliminary judge module, for judging whether the environment temperature collected meets the first Rule of judgment, judge whether the pressure of coalbed gas collected meets the second Rule of judgment, judge whether the Dust Concentration collected meets the 3rd Rule of judgment, described first Rule of judgment is that temperature is more than or equal to temperature threshold, described second Rule of judgment is that pressure of coalbed gas is more than or equal to pressure threshold, described 3rd Rule of judgment is that Dust Concentration is more than or equal to Dust Concentration threshold value, if environment temperature, pressure of coalbed gas, Dust Concentration does not all meet corresponding Rule of judgment, then point out environment without hidden peril of explosion, otherwise then notify comprehensive judgment module and/or supplementary judge module,
Comprehensive judgment module, comprise and search unit and judging unit, described unit of searching obtains the first explosion limit for the explosion limit searched under the environment temperature that collects, the explosion limit searched under the pressure of coalbed gas collected obtains the second explosion limit, the explosion limit searched under the Dust Concentration collected obtains the 3rd explosion limit, described judging unit is for judging whether the gas density collected belongs to the first explosion limit, whether belong to the second explosion limit, whether belong to the 3rd explosion limit, if gas density does not belong to the first explosion limit, second explosion limit and the 3rd explosion limit, then point out environment without hidden peril of explosion, otherwise then point out environment to have hidden peril of explosion,
Supplementing judge module, for judging whether the gas density collected is more than or equal to gas density threshold value, if it is pointing out environment to have hidden peril of explosion.
8. mining comprehensive intelligent gas boring and surveying early warning system according to claim 7, is characterized in that described comprehensive judgment module is configured to: if the gas density collected belongs to the first explosion limit, then point out environment temperature too high; If the gas density collected belongs to the second explosion limit, then point out pressure of coalbed gas excessive; If the gas density collected belongs to the 3rd explosion limit, then point out Dust Concentration too high,
Described supplementary judge module is configured to: if gas density is more than or equal to gas density threshold value, then point out gas density too high.
9. the mining comprehensive intelligent gas boring and surveying early warning system according to claim 7 or 8, is characterized in that described data acquisition module at least comprises gas concentration sensor, O
2concentration sensor, CO concentration sensor, CO
2concentration sensor, temperature pick up and Dust Concentration sensor.
10. the mining comprehensive intelligent gas boring and surveying early warning system according to claim 7 or 8, characterized by further comprising display module, and described display module is used for display reminding information.
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| CN201510176480.1A CN104847410B (en) | 2015-04-14 | 2015-04-14 | Mining comprehensive intelligent gas boring and surveying method for early warning and system |
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| CN201510176480.1A CN104847410B (en) | 2015-04-14 | 2015-04-14 | Mining comprehensive intelligent gas boring and surveying method for early warning and system |
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| CN104847410B CN104847410B (en) | 2016-10-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113155195A (en) * | 2021-04-21 | 2021-07-23 | 深圳市思默特科技有限公司 | Intelligent explosion-proof cabinet, control system, method, equipment and medium |
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