CN109736893A - Intelligent gas detecting early-warning method under a kind of mine - Google Patents
Intelligent gas detecting early-warning method under a kind of mine Download PDFInfo
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- CN109736893A CN109736893A CN201811417858.2A CN201811417858A CN109736893A CN 109736893 A CN109736893 A CN 109736893A CN 201811417858 A CN201811417858 A CN 201811417858A CN 109736893 A CN109736893 A CN 109736893A
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Abstract
The invention discloses intelligent gas detecting early-warning methods under a kind of mine, comprising: S100: user be arranged under mine fire boundary, firing for different coal bed gas pressure fires boundary under boundary, different Dust Concentrations；S200: user acquires Minepit environment information；S300: judge whether collected environment temperature meets temperature Rule of judgment；S400: the boundary that fires searched under collected environment temperature obtains first and fires boundary, and the boundary that fires searched under collected pressure of coalbed gas obtains second and fires boundary, and the boundary that fires searched under collected Dust Concentration obtains third and fires boundary；S500: judging whether collected gas density is more than or equal to gas density threshold value, if it is environment is prompted to fire hidden danger.The present invention realizes the accurately detecting that hidden danger is fired to gas under coal mine by carrying out comprehensive descision to the various environmental parameters detected.
Description
Technical field
The present invention relates to intelligent gas under mine downhole anti-explosion, device of explosion suppression technical field more particularly to a kind of mine to detect
Method for early warning.
Background technique
Well gas refers to toxic, pernicious gas general name of the underground based on methane, sometimes independent nail alkane.Gas is than empty
Gas is light, and easily diffusion, permeability are strong, is easy to be released from adjacent layer across rock stratum by goaf.Gas itself is non-toxic, but cannot be for
People's breathing, when gas density is more than 50% in mine air, can make one death by suffocation due to anoxic.Gas can burn or fire
Quick-fried, it is one of coal mine major casualty that gas, which fires, existing both at home and abroad much to cause casualties and seriously break since gas fires
The example of bad production.Therefore effective precautionary measures must be taken, avoids that gas blast accident occurs, it is ensured that safety in production.
Existing Detection Techniques means have the disadvantage that
(1) related to the data such as temperature, pressure, Dust Concentration since to fire boundary not unalterable for gas, because
This, existing measurement can not the gas that whether is at that time of gas density of accurate judgement actual measurement fire in concentration limit.
(2) due to using CO, CO2Equal detectors individually detect, therefore are only capable of providing independent information, can not carry out synthesis and sentence
It is disconnected.Such as the generation of CO is related with coal dust hypoxemia spontaneous combustion, but independent measurement is unable to judge accurately coal spontaneous combustion position.If CO concentration
It is combined with temperature sensing, can find coal spontaneous combustion phenomenon and judges self-ignition point, thus according to existing gas density to quick-fried
Fried possibility occurrence is accurately judged.
(3) since existing detection means can not provide enough detection accuracies, so the detection of prior art means may
Lead to problems such as to fail to report, report by mistake or excessively alarm, adverse effect is caused to actual production environment under coal mine.
Therefore, it is necessary to provide intelligent gas detecting early-warning method under a kind of mine, solve existing in the prior art
Defect.
Summary of the invention
In order to solve the above technical problems, the present invention provides intelligent gas detecting early-warning method under a kind of mine.
The present invention provides intelligent gas detecting early-warning method under a kind of mine, adopts the following technical scheme that
Intelligent gas detecting early-warning method under a kind of mine, comprising:
S100: user be arranged under mine fire boundary, different coal bed gas pressure fires boundary, different coal dusts
Boundary is fired under concentration；
S200: user acquire Minepit environment information, the environmental information include at least environment temperature, Dust Concentration,
One of ambient pressure, gas density or combinations thereof；
S300: judging whether collected environment temperature meets temperature Rule of judgment, judges that the air pressure of collected coal seam is
It is no to meet air pressure Rule of judgment, judge whether collected Dust Concentration meets coal dust Rule of judgment, the temperature Rule of judgment
It is more than or equal to temperature threshold for temperature, the air pressure Rule of judgment is that pressure of coalbed gas is more than or equal to pressure threshold, the coal
Dirt Rule of judgment is that Dust Concentration is more than or equal to Dust Concentration threshold value, if environment temperature, coal bed gas air pressure, Dust Concentration are not
Meet corresponding Rule of judgment, then prompts environment without firing hidden danger and exit this method process, it is on the contrary then environment is prompted to be not suitable for
It survives and executes S400 and S500；
S400: the boundary that fires searched under collected environment temperature obtains first and fires boundary, searches collected coal
The boundary that fires under layer gas pressure obtains second and fires boundary, and the boundary that fires searched under collected Dust Concentration obtains the
Three fire boundary, judge whether collected gas density fires in compass first, whether second fire boundary model
In enclosing, whether fired in compass in third, if gas density does not fire boundary first, second fires boundary and third
It fires in compass, then prompts environment without firing hidden danger, it is on the contrary then environment is prompted to fire hidden danger；
S500: judging whether collected gas density is more than or equal to gas density threshold value, if it is environment is prompted to have
Fire hidden danger.
Optionally, the temperature threshold in the temperature Rule of judgment is 90-110 DEG C, the pressure in the air pressure Rule of judgment
Force threshold is 0.2-0.4MPa, and the Dust Concentration threshold value in the coal dust Rule of judgment is 20-30g/m3。
Optionally, the gas density threshold value is 2-5%.
Optionally, if collected gas density fires in compass first, prompt environment temperature excessively high, if adopting
The gas density collected fires in compass second, then prompts pressure of coalbed gas excessive, if collected gas density
It is fired in compass in third, then prompts Dust Concentration excessively high.
Optionally, the coal seam gas in S100 includes gas, CO and CO2。
Compared with the relevant technologies, the present invention is had the following technical effect that
The present invention by carrying out comprehensive descision to the various environmental parameters that detect, realize gas under coal mine is fired it is hidden
The accurately detecting of trouble, so as to based on detection information take targetedly treatment measures gas is fired prevented or pressed down
System.
Detailed description of the invention
Fig. 1 is flow chart of the invention.
Specific embodiment
Below in conjunction with drawings and embodiments, the invention will be further described.
Intelligent gas detecting early-warning method under a kind of mine of the invention, comprising:
S100: user be arranged under mine fire boundary, different coal bed gas pressure fires boundary, different coal dusts
Boundary is fired under concentration；
S200: user acquire Minepit environment information, the environmental information include at least environment temperature, Dust Concentration,
One of ambient pressure, gas density or combinations thereof；
S300: judging whether collected environment temperature meets temperature Rule of judgment, judges that the air pressure of collected coal seam is
It is no to meet air pressure Rule of judgment, judge whether collected Dust Concentration meets coal dust Rule of judgment, the temperature Rule of judgment
It is more than or equal to temperature threshold for temperature, the air pressure Rule of judgment is that pressure of coalbed gas is more than or equal to pressure threshold, the coal
Dirt Rule of judgment is that Dust Concentration is more than or equal to Dust Concentration threshold value, if environment temperature, coal bed gas air pressure, Dust Concentration are not
Meet corresponding Rule of judgment, then prompts environment without firing hidden danger and exit this method process, it is on the contrary then environment is prompted to be not suitable for
It survives and executes S400 and S500；
S400: boundary is fired based on what is be arranged in step S100, the boundary that fires searched under collected environment temperature obtains
Boundary is fired to first, the boundary that fires searched under collected pressure of coalbed gas obtains second and fires boundary, searches acquisition
To Dust Concentration under the boundary that fires obtain third and fire boundary, judge whether collected gas density belongs to the first explosion
Whether boundary belongs to and second fires boundary, whether belongs to third and fire boundary, if gas density does not fire boundary first
It is interior, also boundary is not fired second and third fires in boundary, then prompt environment without firing hidden danger, it is on the contrary then environment is prompted to have combustion
Quick-fried hidden danger.Specifically, if collected gas density, which belongs to first, fires boundary, prompt environment temperature excessively high；If adopted
The gas density collected belongs to second and fires boundary, then prompts pressure of coalbed gas excessive；If collected gas density category
Boundary is fired in third, then prompts Dust Concentration excessively high.
S500: supplement judgement is carried out according to collected coal mine environment information.
In step S5, judge whether collected gas density is more than or equal to gas density threshold value, if gas density is big
It then prompts environment to fire hidden danger in being equal to gas density threshold value and prompts gas density excessively high, in the present embodiment, gas density
Threshold value is 3%.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (5)
1. intelligent gas detecting early-warning method under a kind of mine, characterized by comprising:
S100: user be arranged under mine fire boundary, different coal bed gas pressure fires boundary, different Dust Concentrations
Under fire boundary；
S200: user acquires Minepit environment information, and the environmental information includes at least environment temperature, Dust Concentration, environment
One of air pressure, gas density or combinations thereof；
S300: judging whether collected environment temperature meets temperature Rule of judgment, judges whether the air pressure of collected coal seam is full
Sufficient air pressure Rule of judgment, judges whether collected Dust Concentration meets coal dust Rule of judgment, and the temperature Rule of judgment is temperature
Degree is more than or equal to temperature threshold, and the air pressure Rule of judgment is that pressure of coalbed gas is more than or equal to pressure threshold, and the coal dust is sentenced
Broken strip part is that Dust Concentration is more than or equal to Dust Concentration threshold value, if environment temperature, coal bed gas air pressure, Dust Concentration are not satisfied
Corresponding Rule of judgment then prompts environment without firing hidden danger and exit this method process, on the contrary then environment is prompted to be not suitable for existence
And execute S400 and S500；
S400: the boundary that fires searched under collected environment temperature obtains first and fires boundary, searches collected coal bed gas
The boundary that fires under body pressure obtains second and fires boundary, and the boundary that fires searched under collected Dust Concentration obtains third combustion
Quick-fried boundary, judge whether collected gas density fires in compass first, whether fire in compass second,
Whether fired in compass in third, if gas density does not fire boundary first, second fires boundary and third fires
In compass, then prompt environment without firing hidden danger, it is on the contrary then environment is prompted to fire hidden danger；
S500: judging whether collected gas density is more than or equal to gas density threshold value, if it is environment is prompted to fire
Hidden danger.
2. intelligent gas detecting early-warning method under a kind of mine as described in claim 1, which is characterized in that the temperature judgement
Temperature threshold in condition is 90-110 DEG C, and the pressure threshold in the air pressure Rule of judgment is 0.2-0.4MPa, the coal dust
Dust Concentration threshold value in Rule of judgment is 20-30g/m3。
3. intelligent gas detecting early-warning method under a kind of mine as described in claim 1, which is characterized in that the gas density
Threshold value is 2-5%.
4. intelligent gas detecting early-warning method under a kind of mine as described in claim 1, which is characterized in that if collected watt
This concentration fires in compass first, then prompts environment temperature excessively high, if collected gas density fires boundary second
It limits in range, then prompts pressure of coalbed gas excessive, if collected gas density fires in compass in third, prompt
Dust Concentration is excessively high.
5. intelligent gas detecting early-warning method under a kind of mine as described in claim 1, which is characterized in that the coal seam in S100
Gas includes gas, CO and CO2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811417858.2A CN109736893A (en) | 2018-11-26 | 2018-11-26 | Intelligent gas detecting early-warning method under a kind of mine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811417858.2A CN109736893A (en) | 2018-11-26 | 2018-11-26 | Intelligent gas detecting early-warning method under a kind of mine |
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| CN109736893A true CN109736893A (en) | 2019-05-10 |
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| CN201811417858.2A Withdrawn CN109736893A (en) | 2018-11-26 | 2018-11-26 | Intelligent gas detecting early-warning method under a kind of mine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113777132A (en) * | 2021-07-29 | 2021-12-10 | 华北科技学院(中国煤矿安全技术培训中心) | Coal self-heating excitation ultrafine dust flash combustion induced gas explosion experimental device |
-
2018
- 2018-11-26 CN CN201811417858.2A patent/CN109736893A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113777132A (en) * | 2021-07-29 | 2021-12-10 | 华北科技学院(中国煤矿安全技术培训中心) | Coal self-heating excitation ultrafine dust flash combustion induced gas explosion experimental device |
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Application publication date: 20190510 |
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