CN103615248B - The roof and floor in sulfide hydrogen coal seam administers production practice - Google Patents
The roof and floor in sulfide hydrogen coal seam administers production practice Download PDFInfo
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- CN103615248B CN103615248B CN201310616964.4A CN201310616964A CN103615248B CN 103615248 B CN103615248 B CN 103615248B CN 201310616964 A CN201310616964 A CN 201310616964A CN 103615248 B CN103615248 B CN 103615248B
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Abstract
The production practice that the roof and floor that the present invention relates to a kind of sulfide hydrogen coal seam is administered, belongs to sulfide hydrogen seam mining technical field.Specifically comprise the following steps: whether 1) detect in rock stratum containing hydrogen sulfide gas; 2) if content is lower, then in coal road, tunnel is arranged; 3) if exceed standard, isolating means will be adopted; 4), again after perforate, hydrogen sulfide content be detected, time below safety value to be achieved, carry out coal roadway tunneling and exploitation; 5) by the content of monitoring hydrogen sulfide gas, if directly driving and back production in coal seam just can be carried out within the scope of safety value; 6) if the content overproof of hydrogen sulfide, increase apart from coal seam distance after carrying out hydrogen sulfide content detection, still can not be up to standard, then abandon the use of this technology.This invention production practice avoids the harm that human body and electromechanical equipment are directly subject to hydrogen sulfide gas, and protection personal safety, ensure that the good operation of electromechanical equipment, improves the effect of administering hydrogen sulfide.
Description
Technical field
The production practice that the roof and floor that the present invention relates to a kind of sulfide hydrogen coal seam is administered, belongs to sulfide hydrogen seam mining technical field.
Background technology
Hydrogen sulfide is hypertoxic gas, and the adsorbance of coal body to hydrogen sulfide is about 90 times of gas, because of containing hydrogen sulfide gas in the coal seam of part mine, cause workman's life to be on the hazard, what have even gets killed, and the mine that causes had stops production, or exploitation is abandoned in part coal seam, abandons the phenomenon of precious resources.Conventional administering method is exactly directly in coal body, inject alkaline solution at roadway's sides and work plane, to reach and hydrogen sulfide produces reaction and generates salts substances, thus the content of hydrogen sulfide is reduced to below mark value, is conducive to exploitation.
The hydrogen sulfide containing origin cause of formation in coal seam mainly contains three classes: biogenesis, the heat chemistry origin cause of formation, volcanic eruption, and what wherein play an important role is the first two origin cause of formation.No matter because lotion mineral and hydrocarbon-containifirst coal body occur is micro-reduction sulfate, or thermochemical sulfate reduction all impels the generation of hydrogen sulfide.And in the adjoining rock of coal body, although containing lotion mineral, for want of hydro carbons coal body, so hydrogen sulfide content is extremely low, this is that control and exploitation sulfide hydrogen coal seam provide the harbor that is dodged danger.
The administration way in existing sulfide hydrogen coal seam, mostly is direct development work in coal seam, constructs in the tunnel that hydrogen sulfide gas is constantly gushed out, workman bears heavy safeguard, efficiency declines, and the electromechanical equipment in tunnel also will be subject to the corrosion of hydrogen sulfide gas, and efficiency declines.In addition, directly construction drill in coal seam, from boring, the hydrogen sulfide content gushed out is higher, and danger is larger, and sealing of hole, when injecting high pressure base solution, the diffusion effect of aqueous slkali in coal body is also not obvious; In tunnel, spray aqueous slkali, contaminated air, have damage in various degree to personnel and equipment; Adopting by administering hydrogen sulfide, weak effect, sometimes there is no effect at all.
Summary of the invention
The object of the invention is to the deficiency overcoming above-mentioned production practice, the production practice that a kind of roof and floor of sulfide hydrogen coal seam is administered is provided, to create protection distance to administer sulfide hydrogen coal seam, when hydrogen sulfide content is reduced to below setting, can directly exploit.
To achieve these goals, technical scheme of the present invention is as follows.
A production practice for the roof and floor improvement in sulfide hydrogen coal seam, specifically comprises the following steps:
1) according to hydrogen sulfide gas supporting environment, hydrogen sulfide is mainly composed and is deposited in coal seam, and in seam roof rock stratum or floor strata, content is very micro-, therefore, first whether detected in roof strata and floor strata containing hydrogen sulfide gas by field trial.
2) if content is too low in roof strata, then can arrange in apart from the coal road in the roof strata of pre-mining coal seam 5 ~ 10m and floor strata series of parallel in the measure tunnel of Seam Roof And Floor, these tunnels can cover whole back production section coal seam.
3) in these stone heads, a series of drill site is arranged, and wherein to a series of layer-through drilling that can cover pre-mining coal seam of coal seam construction; In work progress for sulfide hydrogen coal seam, adopt aqueous slkali sealing means to neutralize the hydrogen sulfide gas of desorb from ickings, adopt hydrogen sulfide to administer Special drill and to have constructed rear timely sealing of hole, and inject high pressure alkaline solution in coal seam.
4) after administering, by perforate again, detect hydrogen sulfide content in coal seam, time below safety value to be achieved, coal roadway tunneling can be carried out in the regional coal-seam through administering, exploiting after stope to be formed;
5) content of hydrogen sulfide gas to be monitored constantly in recovery process, carry out tunneling and back production within the scope of safety value.
6) if detect in roof strata or floor strata, the content overproof of hydrogen sulfide, increasing the distance of distance Roof Rock Strata of Coal Seam or floor strata after carrying out hydrogen sulfide content detection, still can not be up to standard, then abandon the use of this technology.
The production practice that the roof and floor in this cover sulfide hydrogen coal seam is administered mainly contains following characteristics: 1) straighten the improvement of contact hydrogen sulfide poison gas for opening-up measure roadway treating hydrogen sulfide in seam roof rock stratum or floor strata; 2) drilling construction is easy, and coverage is large, and the even density of boring is controlled, and water-stop mode can be adopted during construction to prevent hydrogen sulfide gas from gushing out; 3) easily control the frequency of flow, slip casting when injecting aqueous slkali in coal body from the boring in roof and floor tunnel, easily monitor and monitoring hydrogen sulfide regulation effect simultaneously, thus reach best regulation effect.
This beneficial effect of the invention is:
1) first avoid the harm that human body and electromechanical equipment are directly subject to hydrogen sulfide gas, protection personal safety, ensure that the good operation of electromechanical equipment;
2) in stone head, a series of drill site is arranged, and working measure boring, then injection high pressure base solution is adopted to carry out hydrogen sulfide improvement to coal seam, ensure the safety of people and electromechanical equipment, and improve the efficiency and effect of administering hydrogen sulfide, thus effectively reduce the content of hydrogen sulfide, reach the condition of exploitation.
3) being carried out by the enforcement of this technology, by effectively liberating the exploitation in large quantities of sulfide hydrogen coal seam, effectively raising the utilization ratio of resource.
Accompanying drawing explanation
Fig. 1 is that the embodiment of the present invention contains H
2s roof administers H
2s special measure tunnel schematic diagram.
Fig. 2 is that the embodiment of the present invention contains H
2s roof administers H
2s special measure tunnel sectional view.
Description of symbols in figure: 1, hydrogen sulfide control measures tunnel; 2, coal seam air way; 3, hydrogen sulfide administers Special drill; 4, the large lane of return air; 5, main haulage roadway; 6, connection roadway; 7, coal seam machine lane; 8, roof strata; 9, sulfide hydrogen coal seam; 10, floor strata; 11, coal road.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described, better to understand the present invention.
Embodiment
That the embodiment of the present invention contains H in Fig. 1
2s roof administers H
2s special measure tunnel schematic diagram.The large lane 4 of return air, main haulage roadway 5, connection roadway 6 are arranged in rock, coal seam air way 2, the machine lane, coal seam 7 of stope layout are arranged in coal road 11, and hydrogen sulfide control measures tunnel 1 is arranged in parallel in the rock stratum of top (end) plate, they just do not have concrete title, as air way, machine lane etc., it only has this call of measure lane.Fig. 2 is that the embodiment of the present invention contains H
2s roof administers H
2s special measure tunnel sectional view, the production practice that the roof and floor based on the sulfide hydrogen coal seam of this figure is administered, specifically comprises the following steps:
1) according to hydrogen sulfide gas supporting environment, hydrogen sulfide is mainly composed and is deposited in coal seam, and in seam roof rock stratum 8 or floor strata 10, content is very micro-, therefore, first whether detected in roof strata 8 and floor strata 10 containing hydrogen sulfide gas by field trial.
2) if content is too low in roof strata 8, then can in apart from the roof strata 8 of pre-mining coal seam 10m and floor strata 10 series of measures tunnel, cover whole coal seam.
3) in these stone heads, a series of drill site is arranged, and wherein to a series of layer-through drilling that can cover pre-mining coal seam of coal seam construction.In work progress for sulfide hydrogen coal seam 9, adopt aqueous slkali sealing means to neutralize the hydrogen sulfide gas of desorb from ickings, adopt hydrogen sulfide to administer Special drill 3 and to have constructed rear timely sealing of hole, and inject high pressure alkaline solution in coal seam.
4) after administering, by perforate again, detect hydrogen sulfide content in coal seam, time below safety value to be achieved, tunnel can be arranged in the coal seam of governance for reaching standard, exploit after stope to be formed.
5) content of hydrogen sulfide gas to be monitored constantly in recovery process, carry out tunneling and back production within the scope of safety value.
6) if detect in roof strata 8 or floor strata 10, the content overproof of hydrogen sulfide, increasing the distance of distance Roof Rock Strata of Coal Seam 8 or floor strata 10 after carrying out hydrogen sulfide content detection, still can not be up to standard, then abandon the use of this technology.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (1)
1. a production practice for the roof and floor improvement in sulfide hydrogen coal seam, is characterized in that: specifically comprise the following steps:
1) first whether detected in roof strata and floor strata containing hydrogen sulfide gas by field trial;
2) if content is too low in roof strata, then can arrange in apart from the roof strata of pre-mining coal seam 5 ~ 10m and floor strata series of parallel in the measure tunnel in coal seam, these tunnels can cover whole back production section coal seam;
3) in these stone heads, a series of drill site is arranged, and wherein to a series of layer-through drilling that can cover pre-mining coal seam of coal seam construction; In work progress for sulfide hydrogen coal seam, adopt aqueous slkali sealing means to neutralize the hydrogen sulfide gas of desorb from ickings, adopt hydrogen sulfide to administer Special drill and to have constructed rear timely sealing of hole, and inject high pressure alkaline solution in coal seam;
4) after administering, by perforate again, detect hydrogen sulfide content in coal seam, time below safety value to be achieved, coal roadway tunneling can be carried out in the regional coal-seam through administering, exploiting after stope to be formed;
5) content of hydrogen sulfide gas to be monitored constantly in recovery process, carry out tunneling and back production within the scope of safety value;
6) if detect in roof strata or floor strata, the content overproof of hydrogen sulfide, increasing the distance of distance Roof Rock Strata of Coal Seam or floor strata after carrying out hydrogen sulfide content detection, still can not be up to standard, then abandon the use of this technology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310616964.4A CN103615248B (en) | 2013-11-23 | 2013-11-23 | The roof and floor in sulfide hydrogen coal seam administers production practice |
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| CN201310616964.4A CN103615248B (en) | 2013-11-23 | 2013-11-23 | The roof and floor in sulfide hydrogen coal seam administers production practice |
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| Publication Number | Publication Date |
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| CN103615248A CN103615248A (en) | 2014-03-05 |
| CN103615248B true CN103615248B (en) | 2016-03-09 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005766A (en) * | 2014-05-12 | 2014-08-27 | 山西蓝焰煤层气集团有限责任公司 | Chemical method for weakening of top coal |
| CN104110270B (en) * | 2014-07-07 | 2016-05-04 | 辽宁工程技术大学 | A kind of dynamic note alkali is administered the method for coal seam hydrogen sulfide |
| CN104819009B (en) * | 2015-05-06 | 2017-03-22 | 四川达竹煤电(集团)有限责任公司斌郎煤矿 | Closed excavation roadway opening and high concentration hydrogen sulfide and gas treatment method |
| CN105507907B (en) * | 2016-01-29 | 2018-09-25 | 中铁一局集团有限公司 | A kind of method that hydrogen sulfide gas discharge rate is reduced in constructing tunnel |
| CN105587326A (en) * | 2016-01-29 | 2016-05-18 | 中铁第一勘察设计院集团有限公司 | Multiple waterproof duct piece structure for tunnel through shield method or TBM method |
| CN106050236A (en) * | 2016-07-08 | 2016-10-26 | 中国矿业大学 | Method for desulfurization in the coal mining process |
| CN109488374A (en) * | 2018-10-17 | 2019-03-19 | 新汶矿业集团有限责任公司 | The comprehensive management of technology of hydrogen sulfide in a kind of coal working face |
| CN112983535B (en) * | 2021-03-16 | 2022-06-03 | 重庆大学 | Soft, low-permeability and high-hydrogen sulfide coal seam zoning drilling, cutting and alkali injection treatment construction method |
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