CN105179002A - Construction method for dynamic ventilation channels of underground mining of thick ore body - Google Patents
Construction method for dynamic ventilation channels of underground mining of thick ore body Download PDFInfo
- Publication number
- CN105179002A CN105179002A CN201510564924.9A CN201510564924A CN105179002A CN 105179002 A CN105179002 A CN 105179002A CN 201510564924 A CN201510564924 A CN 201510564924A CN 105179002 A CN105179002 A CN 105179002A
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- Prior art keywords
- air
- ore body
- connecting taxiway
- retaining wall
- mining
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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
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/18—Gravity flow ventilation
Abstract
The invention discloses a construction method for dynamic ventilation channels of underground mining of a thick ore body. The construction method comprises the steps of air shaft arrangement, fresh air and exhaust air flow channel selection, air flow partitioning retaining wall arrangement, fast building and removing of retaining wall structures and the like. According to the arrangement of stoped ore blocks of the thick ore body, downcast shafts and return shafts are arranged on the two wings and the two sides of the ore body respectively, and the downcast shafts are connected with horizontal production linkage channels through air inlet channels to guide fresh air. A dynamic retaining wall structure fast obstructs the air between a linkage channel in use and a linkage channel to be used, and short-circuited air is eliminated. Meanwhile, the retaining wall structure is composed of crushed ore and capsule filler, wherein the crushed ore is convenient to obtain and the capsule filler is convenient to inflate and deflate. Along with the movement of a mining retraction line, the retaining wall structure can be dynamically adjusted, and therefore unblocked air flow channels can be formed in the stoping area, conventional air doors are avoided, the investment is saved, and the construction period is shortened.
Description
Technical field
The present invention relates to and join metal mine exploitation field, the particularly construction process of the dynamic ventilation air duct of a kind of big thick ore body underground mining.
Background technology
In metal mine underground mining, mine ventilation work is very important, and first ventilation system will meet the aggregate demand of each operation area, down-hole wind flow, also will ensure the wind flow in operations specific region simultaneously.The feature of big thick ore body is that layering ore deposit amount is large, Operational preparation ore deposit amount is large, strip-type moves back and adopts; Move back and adopt tunnel, direction and all formed, and the distribution in grid type, in region, distinguished and admirable path is many, natural allocation of the amount of air and demand gap large.Usually adopt diagonal angle subregion, multi fan station ventilation system for big thick ore body, this system can ensure each level of operation ventilation requirement of underground mining on the whole, but needs to improve to the control in path distinguished and admirable in each region, improves effective wind rate.
Summary of the invention
The object of the invention is for solving the problem, providing the construction process of the dynamic ventilation air duct of a kind of big thick ore body underground mining.
In order to achieve the above object, the invention provides following technical scheme: the construction process of the dynamic ventilation air duct of a kind of big thick ore body underground mining, comprises the steps:
(1) mining tunnel is arranged in vertical orebody trend direction, two downcasts are arranged respectively at ore body two ends, arrange returnairshaft moving back near the last item connecting taxiway adopting tunnel, downcast and returnairshaft are connected respectively by crossdrift, return air channel and connection roadway, introduce the fresh distinguished and admirable and dirty wind of eliminating;
(2) at work connecting taxiway and continue between connecting taxiway and arrange wall-retaining structure, freshly distinguished and admirablely from the downcast of both sides, enter work connecting taxiway, then enter each back production ore removal route and rinse work plane dust and blasting fume, dirty wind arrives along return air channel the connecting taxiway that continues, finally get back to returnairshaft, form complete ventilation system;
(3) along with mining move back the transfer of adopting, move back adopt line gradually by work connecting taxiway move to the connecting taxiway that continues, dynamic air channel wall-retaining structure is moved to prepare barricade position.
As a modification of the present invention, the method for building up of described wall-retaining structure is: in preparation extracting drift, utilize scraper to pile up muck heap dam in bottom; The part cannot piled up at an upper portion thereof lays aerated capsule obturator, and this obturator can utilize external underground pressure air pipeline, obturator blast pipe, utilizes control air-valve Switch Controller obturator to carry out inflating or pressure release.
The present invention has following beneficial effect compared to existing technology:
(1) the method is according to the layout of actual mining roadway of big thick ore body, and reasonable Arrangement air entering and returning well meets head on to provide fresh distinguished and admirable for working.
(2) wall-retaining structure is set between stope drift active workings and preparatory working, avoids inlet side Air escape branch and circulation.
(3) wall-retaining structure is made up of the capsule-filling body of the muck of conveniently drawing materials and conveniently inflation, pressure release.Along with moving back the movement of adopting line, wall-retaining structure can motor-drivenly adjust, and ensures that back production region forms unimpeded airflow channel, avoids setting up of conventional air door, reduce investment outlay, the reduction of erection time.
Accompanying drawing explanation
Fig. 1 is dynamic ventilation air duct construction process schematic diagram;
Fig. 2 is air channel wall-retaining structure figure.
Reference numerals list:
1-downcast I, 2-work connecting taxiway, 3-back production ore removal route, 4-wall-retaining structure, and 5-continues connecting taxiway, 6-prepares barricade, 7-goaf, 8-ore removal drop shaft, and the dirty wind of 9-is distinguished and admirable, 10-returnairshaft, 11-return air channel, 12-is fresh distinguished and admirable, 13-air intake crossdrift, 14-downcast II, 15-prepares extracting drift, 16-fine ore heap dam, 17-aerated capsule obturator, 18-obturator blast pipe, 19-controls air-valve switch, 20-underground pressure air pipeline, 1-1-second downcast I, 14-1-second downcast II.
Detailed description of the invention
Below with reference to specific embodiment, technical scheme provided by the invention is described in detail, following detailed description of the invention should be understood and be only not used in for illustration of the present invention and limit the scope of the invention.
The invention discloses the construction process of the dynamic ventilation air duct of a kind of big thick ore body underground mining, comprise the steps:
1. the layout of ventilation ventilating shaft.
Mining tunnel is arranged in vertical orebody trend direction, downcast I 1 and downcast II 14 is arranged respectively at ore body both wings (end), arrange returnairshaft 10 moving back near the last item connecting taxiway adopting tunnel, three ventilating shafts are connected with connection roadway respectively by crossdrift 13, return air channel 11, introduce the fresh distinguished and admirable and dirty wind of eliminating.
2. the dynamically foundation of barricade and the formation of ventilation system.
At work connecting taxiway 2 and continue between connecting taxiway 5 and arrange wall-retaining structure 4.This structure utilizes scraper to pile up muck heap dam 16 in bottom in preparation extracting drift 15, the part cannot piled up at an upper portion thereof lays aerated capsule obturator 17, this obturator can utilize external underground pressure air pipeline 20, obturator blast pipe 18, utilizes control air-valve switch 19 pairs of obturators to inflate or pressure release.This barricade is set in many extracting drifts in the same way, form ventilation system: fresh distinguished and admirable 12 enter work connecting taxiway 2 from the downcast of both sides, then enter each back production ore removal route 3 and rinse work plane dust and blasting fume, dirty wind 9 arrives along return air channel 11 connecting taxiway 5 that continues, finally get back to returnairshaft 10, form complete ventilation system.
3. the rapid translating of stope drift active workings and preparatory working ventilation system and structure.
Along with mining move back the transfer of adopting, move back adopt line gradually by work connecting taxiway 2 move to the connecting taxiway 5 that continues, former ventilation system can not meet ventilation requirement.Preparing barricade 6 position with moving to by dynamic air channel wall-retaining structure, by former downcast I 1 and downcast II 14, transferring to the second new downcast I 1 and the second downcast II 14.In new preparation extracting drift 15, pile up fine ore by scraper and form fine ore heap dam 16, open and control air-valve 19, in aerated capsule obturator 17, be filled with high-pressure blast by underground pressure air pipeline 20, obturator blast pipe 18, make capsule-filling volume expansion, play and cut off distinguished and admirable effect.By control obturation state can fast dismantling except former barricade and set up new barricade fast in preparatory working, realize the rapid build of ventilation system, meet big thick ore body move back adopt in the ventilation requirement of each nugget operation.
Method of the present invention is according to the layout of actual mining roadway of big thick ore body, and reasonable Arrangement air entering and returning well meets head on to provide fresh distinguished and admirable for working.By arranging wall-retaining structure between stope drift active workings and preparatory working, avoid inlet side Air escape branch and circulation, wall-retaining structure is made up of the capsule-filling body of the muck of conveniently drawing materials and conveniently inflation, pressure release simultaneously.Along with moving back the movement of adopting line, wall-retaining structure can motor-drivenly adjust, and ensures that back production region forms unimpeded airflow channel, avoids setting up of conventional air door, reduce investment outlay, the reduction of erection time.
Except above-mentioned embodiment illustrates, the present invention can also have other embodiments, and those skilled in the art in the invention can also suitably revise above-mentioned embodiment and convert.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of application claims.
Claims (2)
1. a construction process for the dynamic ventilation air duct of big thick ore body underground mining, is characterized in that: comprise the steps:
(1) mining tunnel is arranged in vertical orebody trend direction, two downcasts are arranged respectively at ore body two ends, arrange returnairshaft moving back near the last item connecting taxiway adopting tunnel, downcast and returnairshaft are connected respectively by crossdrift, return air channel and connection roadway, introduce the fresh distinguished and admirable and dirty wind of eliminating;
(2) at work connecting taxiway and continue between connecting taxiway and arrange wall-retaining structure, freshly distinguished and admirablely from the downcast of both sides, enter work connecting taxiway, then enter each back production ore removal route and rinse work plane dust and blasting fume, dirty wind arrives along return air channel the connecting taxiway that continues, finally get back to returnairshaft, form complete ventilation system;
(3) along with mining move back the transfer of adopting, move back adopt line gradually by work connecting taxiway move to the connecting taxiway that continues, dynamic air channel wall-retaining structure is moved to prepare barricade position.
2. the construction process of the dynamic ventilation air duct of a kind of big thick ore body underground mining according to claim 1, is characterized in that: the method for building up of described wall-retaining structure is: in preparation extracting drift, utilize scraper to pile up muck heap dam in bottom; The part cannot piled up at an upper portion thereof lays aerated capsule obturator, and this obturator can utilize external underground pressure air pipeline, obturator blast pipe, utilizes control air-valve Switch Controller obturator to carry out inflating or pressure release.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510564924.9A CN105179002A (en) | 2015-09-08 | 2015-09-08 | Construction method for dynamic ventilation channels of underground mining of thick ore body |
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| CN201510564924.9A CN105179002A (en) | 2015-09-08 | 2015-09-08 | Construction method for dynamic ventilation channels of underground mining of thick ore body |
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| CN105179002A true CN105179002A (en) | 2015-12-23 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089234A (en) * | 2016-07-15 | 2016-11-09 | 北京科技大学 | A kind of method of distance auxiliary lane multichannel Quick-return fully-mechanized mining working |
| CN107083984A (en) * | 2017-06-14 | 2017-08-22 | 陕西有色榆林煤业有限公司 | A kind of colliery central water sump whole wind pressure ventilation system and design method |
| CN107725093A (en) * | 2017-11-25 | 2018-02-23 | 彝良驰宏矿业有限公司 | It is a kind of can rapid build local air return system |
| CN108843318A (en) * | 2018-05-31 | 2018-11-20 | 西北矿冶研究院 | Method for improving ore removal efficiency of underground stope |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106089234A (en) * | 2016-07-15 | 2016-11-09 | 北京科技大学 | A kind of method of distance auxiliary lane multichannel Quick-return fully-mechanized mining working |
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| CN107083984A (en) * | 2017-06-14 | 2017-08-22 | 陕西有色榆林煤业有限公司 | A kind of colliery central water sump whole wind pressure ventilation system and design method |
| CN107725093A (en) * | 2017-11-25 | 2018-02-23 | 彝良驰宏矿业有限公司 | It is a kind of can rapid build local air return system |
| CN108843318A (en) * | 2018-05-31 | 2018-11-20 | 西北矿冶研究院 | Method for improving ore removal efficiency of underground stope |
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Application publication date: 20151223 |
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