CN106703864A - High-cold mine ventilation structure and high-cold mine ventilation system - Google Patents
High-cold mine ventilation structure and high-cold mine ventilation system Download PDFInfo
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- CN106703864A CN106703864A CN201611189902.XA CN201611189902A CN106703864A CN 106703864 A CN106703864 A CN 106703864A CN 201611189902 A CN201611189902 A CN 201611189902A CN 106703864 A CN106703864 A CN 106703864A
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- level haulage
- gallery
- haulage gallery
- level
- air
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Classifications
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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
- E21F1/006—Ventilation at the working face of galleries or tunnels
Abstract
The invention provides a high-cold ventilation structure and a high-cold mine ventilation system. The high-cold mine ventilation structure comprises an intake shaft, a return shaft and a plurality of middle-section haulage drifts; the air inlet of the intake shaft is communicated with the outer world, and the air outlet of the intake shaft is communicated with the return shaft via the middle-section haulage drifts and is communicated with the outer world via the return shaft; a preheating corridor is arranged in the air inlet and is used for preheating up air entering the intake shaft; an open yard is arranged among the middle-section haulage drifts, and the air entering the intake shaft can flow in the neighboring middle-section haulage drifts via the opening yard and enter the working surface of a stope through the middle-section haulage drifts; a slope ramp communicated in the middle-section haulage drifts is communicated with the working surface of the stope and is used for guiding the air entering the working surface of the stope back to the return shaft and flow back to the outer world along the return shaft. When the outer fresh air is guided into the shaft, the air is heated in advance, the heated air enters the shaft, and temperature in the shaft can be raised.
Description
Technical field
The present invention relates to the technical field of mine ventilation, more particularly, to a kind of High-cold regions mine ventilation structure and high and cold
Area's mine ventilation system.
Background technology
Mine includes colliery, metallic ore, nonmetallic ore, building materials ore deposit and chemical mine etc..
Mine capacity (also referred to as production capacity) is generally represented with annual production or the daily output.Annual production is mine production every year
Ore quantity, large-scale, medium-sized, small-sized three types are divided into by the size of yield.
The size of mine capacity, will be adapted with the rational length of service of mining economy, only in this way, could save capital construction
Expense, reduces cost；During mining production, digging operation is both that consumption human and material resources are most, and occupied fund is most, and
It is to reduce mining cost production link with the largest potentiality.The main path for reducing cost of mining is to raise labour productivity and product
Quality, reduces the consumption of materials.
In the mine of extremely frigid zones, due to very cold, the moisture in this area can be caused to be in icing condition throughout the year.
During mine ventilation, if there is icicle to produce near vertical shaft, it will increase flowing resistance and cause mine transportation equipment by
In freezing and causing trouble, the normal production work in mine is influenceed, improve the maintenance rate of transporting equipment, reduce making for transporting equipment
With the life-span, this will result directly in the increasing of the consumption of materials, improve cost, cause increasing for mine fund, influence profit margin.
The content of the invention
It is an object of the invention to provide a kind of High-cold regions mine ventilation structure and High-cold regions mine ventilation system, to solve
It is unfavorable due to divulging information certainly present in prior art in the mine of extremely frigid zones, cause transporting equipment to freeze failure, influence is just
The technical problem for often working.
A kind of High-cold regions mine ventilation structure that the present invention is provided, including downcast, returnairshaft and multiple level haulages are put down
Lane；
The air inlet of the downcast is in communication with the outside, and the air outlet of the downcast is through the level haulage gallery and institute
Returnairshaft connection is stated, and is in communication with the outside through the returnairshaft；
The air inlet is provided with preheating gallery, and the preheating gallery is used to rise the air for entering the downcast in advance
Temperature；
Courtyard is provided between multiple level haulage gallerys, makes to enter the air of the downcast through the courtyard in phase
Flowing in the adjacent level haulage gallery, and Stope face is entered by the level haulage gallery；
Ramp is communicated between the level haulage gallery, the ramp is connected with the Stope face, is used for
The air conducting of the Stope face will be entered to the returnairshaft, and the external world is back to along the returnairshaft.
Further, in an embodiment of the present invention, portable blower is provided with the Stope face, for will be into described
In the air conducting of Stope face to the ramp, the returnairshaft is flowed to along the ramp.
Further, in an embodiment of the present invention, multiple level haulage gallerys include the first level haulage gallery,
Second level haulage gallery, the 3rd level haulage gallery and the 4th level haulage gallery；
The first level haulage gallery, the second level haulage gallery, the 3rd level haulage gallery and the 4th level haulage
The entrance of gallery is connected with the downcast；
The outlet of the first level haulage gallery, the second level haulage gallery and the 3rd level haulage gallery with described time
Ventilating shaft is connected, meanwhile, the outlet of the 4th level haulage gallery is connected with the Stope face.
Further, in an embodiment of the present invention, also including main shaft and auxiliary shaft；
The main shaft and the auxiliary shaft are connected with the level haulage gallery, are formed from the main shaft, along the stage casing
Haulage way to the auxiliary shaft fractional channel；
Local fan is provided with the level haulage gallery, for driving air along the flow direction stream of the fractional channel
It is dynamic.
Further, in an embodiment of the present invention, in the main shaft and the first level haulage gallery, described second
Section haulage way, the 3rd level haulage gallery are connected with the 4th level haulage gallery；
The auxiliary shaft is connected with the first level haulage gallery and the second level haulage gallery.
Further, in an embodiment of the present invention, the courtyard includes people's row vent (-escape) raise and slot raise；
People's row vent (-escape) raise connects the second level haulage gallery and the 3rd level haulage gallery；
The slot raise connects the 3rd level haulage gallery and the 4th level haulage gallery；
Air is along the second level haulage gallery, people's row vent (-escape) raise, the 3rd level haulage gallery, described
The flow direction of slot raise and the 4th level haulage gallery flow to the Stope face.
Further, in an embodiment of the present invention, the first level haulage gallery, the second level haulage gallery,
Three level haulage gallerys and the 4th parallel setting of level haulage gallery.
Further, in an embodiment of the present invention, people's row vent (-escape) raise and the slot raise are with described
One level haulage gallery, the second level haulage gallery, the 3rd level haulage gallery and the 4th level haulage gallery any one phase
Vertically.
Further, in an embodiment of the present invention, the first level haulage gallery described in the outlet of the ramp
With the 3rd level haulage gallery.
Present invention also offers a kind of High-cold regions mine ventilation system, including described High-cold regions mine ventilation structure.
In the above-mentioned technical solutions, in order to solve the problems, such as the freezing of extremely frigid zones mine, so by means of mine ventilation
Process, when to importing extraneous fresh air in mine, is in advance heated up air, the air after intensification is entered ore deposit
In well, to improve the temperature in mine.
And in the technical scheme of the application, be aerated in order to the Stope face effectively to mine, it is also right
Vent passages in mine, namely transport channel is transformed, there is provided a plurality of level haulage gallery, the air after intensification enters
After entering downcast, heat conduction is carried out by a plurality of level haulage gallery connected with downcast, make the air after intensification along a plurality of branch
Road, i.e., the branch road of described level haulage gallery is flowed, and can be carried after this structure is shunted to the air after intensification
The temperature rise effect of the Stope face of mine high, allows the reduction temperature that the transporting equipment of Stope face continues and stablizes,
Avoid damaging；Because, if the air after will heat up is introduced directly into Stope face and after exchanging heat and deriving, although hot-air
The alleviation that Stope face is freezed to transporting equipment can be directed to, but this mode can move quickly through hot-air adopts
Field working face, forms the quick circulation of air, and the retention of heat is not obvious, very nearly the same with traditional ventilation effect, so,
In order to effectively improve the temperature of Stope face, so being redesigned to the flow direction of hot-air, a plurality of branch has been divided into it
Road, is first shunted hot-air, is dispersed in surrounding's working lining of Stope face, makes hot-air by Stope face
Around, the encirclement effect of hot-fluid is formed, also, during Stope face is directed into hot-air, also use courtyard
Design, make hot-air enter downcast after, by the adjacent level haulage gallery of courtyard entrance successively, make its circulation rail
Mark can be turned back by courtyard, and expand the approach of radiating, and then expand the radiating of Stope face, allow hot gas saturating
Cross soil wall to be resident and spread around the Stope face, improve the effect that alleviation equipment is frozen.Also, hot empty
It is also the path for increasing circulation by ramp during conductance flows back to the external world, remaining temperature is sufficiently dissipated in soil,
Surround the Stope face.
Brief description of the drawings
In order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art, below will be to specific
The accompanying drawing to be used needed for implementation method or description of the prior art is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
The structural representation of the High-cold regions mine ventilation structure that Fig. 1 is provided for one embodiment of the invention；
The structural representation of the Stope face entrance that Fig. 2 is provided for one embodiment of the invention；
The structural representation of the Stope face outlet that Fig. 3 is provided for one embodiment of the invention；
The operating diagram of the Stope face that Fig. 4 is provided for one embodiment of the invention.
Reference：
1- downcasts；2- returnairshafts；3- level haulage gallerys；
4- preheats gallery；5- courtyards；6- Stope faces；
7- ramps；8- main shafts；9- auxiliary shafts；
31- the first level haulage gallerys；32- the second level haulage gallerys；
The level haulage gallerys of 33- the 3rd；The level haulage gallerys of 34- the 4th；
51- people's row vent (-escape) raise；52- slot raises；
61- Stope face entrances；62- Stope faces are exported.
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", D score, "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outward " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify describe, rather than indicate imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
Two connections of element internal.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
The structural representation of the High-cold regions mine ventilation structure that Fig. 1 is provided for one embodiment of the invention；
First, as shown in figure 1, a kind of High-cold regions mine ventilation structure for providing of the present embodiment, including downcast 1, return air
Well 2 and multiple level haulage gallerys 3；
The air inlet of the downcast 1 is in communication with the outside, and the air outlet of the downcast 1 is through the level haulage gallery 3
Connected with the returnairshaft 2, and be in communication with the outside through the returnairshaft 2；
The air inlet is provided with preheating gallery 4, and the preheating gallery 4 is used for pre- to entering the air of the downcast 1
First heat up；
Courtyard 5 is provided between multiple level haulage gallerys 3, makes the air for entering the downcast 1 through the courtyard 5
The flowing in the adjacent level haulage gallery 3, and Stope face 6 is entered by the level haulage gallery 3；
Ramp 7 is communicated between the level haulage gallery 3, the ramp 7 is connected with the Stope face 6,
For the air conducting by the Stope face 6 is entered to the returnairshaft 2, and the external world is back to along the returnairshaft 2.
In the particular embodiment, it is aerated in order to the Stope face 6 effectively to mine, also in mine
Vent passages, namely transport channel transformed, there is provided a plurality of level haulage gallery 3, the air after intensification enters
After ventilating shaft 1, heat conduction is carried out by a plurality of level haulage gallery 3 connected with downcast 1, make the air after intensification along a plurality of branch
Road, i.e., the branch road of described level haulage gallery 3 is flowed, and can be carried after this structure is shunted to the air after intensification
The temperature rise effect of the Stope face 6 of mine high, allows the reduction temperature that the transporting equipment of Stope face 6 continues and stablizes
Degree, it is to avoid damage；Because, if the air after will heat up is introduced directly into Stope face 6 and after exchanging heat and deriving, although heat
Air can be directed to the alleviation that Stope face 6 is freezed to transporting equipment, but this mode can make hot-air quick
By Stope face 6, the quick circulation of air is formed, the retention of heat is not obvious, and nothing is differed with traditional ventilation effect
It is several, so, in order to effectively improve the temperature of Stope face 6, so being redesigned to the flow direction of hot-air, it is divided into
A plurality of branch road, is first shunted hot-air, is dispersed in surrounding's working lining of Stope face 6, makes hot-air by adopting
Around the working face 6 of field, the encirclement effect of hot-fluid is formed, also, during Stope face 6 is directed into hot-air,
The design of courtyard 5 is also used, it is flat by the adjacent level haulage of the entrance successively of courtyard 5 after hot-air is entered downcast 1
Lane 3, allows its circulation track to be turned back by courtyard 5, and expands the approach of radiating, and then expands Stope face 6
Radiating, allow hot gas through soil wall around the Stope face 6 be resident and spread, improve alleviation equipment it is cold
The effect of jelly.Also, it is also the path for increasing circulation by ramp 7 during hot-air water conservancy diversion goes back to the external world, will be remaining
Temperature is sufficiently dissipated in soil, surrounds the Stope face 6.
The structural representation of the Stope face entrance that Fig. 2 is provided for one embodiment of the invention；Fig. 3 is of the invention one
The structural representation of the Stope face outlet that embodiment is provided；The Stope face that Fig. 4 is provided for one embodiment of the invention
Operating diagram.
As shown in Figures 2 and 3, the Stope face entrance 61 of as described Stope face 6 and Stope face are exported
62, meanwhile, the schematic diagram of Fig. 2 and Fig. 3 namely Stope face；And the work that Stope face 6 is shown in Fig. 4 is illustrated
Figure.
Further, to being provided with portable blower using in Stope face 6 described in complete hot-air, for it will enter described in
In the air conducting of Stope face 6 to the ramp 7, the returnairshaft 2 is flowed to along the ramp 7.
In order to effectively control the flow direction of hot-air, hot-air is set smoothly to circulate in a predetermined sequence,
Hot-air backflow in Stope face 6 is prevented, so employing portable blower to guide the flow direction of hot-air.
Further, as shown in figure 1, multiple level haulage gallerys 3 are including in the first level haulage gallery 31, second
Section haulage way 32, the 3rd level haulage gallery 33 and the 4th level haulage gallery 34；
In the first level haulage gallery 31, the second level haulage gallery 32, the 3rd level haulage gallery 33 and the 4th
The entrance of section haulage way 34 is connected with the downcast 1；
The outlet of the first level haulage gallery 31, the second level haulage gallery 32 and the 3rd level haulage gallery 33 with
The returnairshaft 2 is connected, meanwhile, the outlet of the 4th level haulage gallery 34 is connected with the Stope face 6.
In above-mentioned specific embodiment, four level haulage gallerys 3 are specifically provided with, it is described above except completing
Outside water conservancy diversion hot-air, the design of four level haulage gallerys 3 can ensure intensification of the hot-air to soil in structure, make temperature
Lifting be adapted to mine in equipment freezing alleviate.
Above-mentioned structure design, by prolonged experiment and research in actual use, can either ensure the effect that heats up
Really, additionally it is possible to save energy.
Further, also including main shaft 8 and auxiliary shaft 9；
The main shaft 8 and the auxiliary shaft 9 are connected with the level haulage gallery 3, are formed from the main shaft 8, along described
Level haulage gallery 3 to the auxiliary shaft 9 fractional channel；
Local fan is provided with the level haulage gallery 3, for driving air along the flow direction of the fractional channel
Flowing.
Although the effect for heating up is realized in structure that can be above, the environment of low temperature is run into, it is still necessary to improve and rise
The effect of temperature.
And main shaft 8 and auxiliary shaft 9 described above is heated up in the case of high and cold, when running into high and cold situation
Under, main shaft 8 and auxiliary shaft 9 are just opened, make the heat obtained between main shaft 8 and auxiliary shaft 9 between circulating current and each level haulage gallery 3 empty
Gas forms heat exchange, forms local ventilation network, improves the temperature of Stope face 6.
Further, the main shaft 8 and the first level haulage gallery 31, the second level haulage gallery 32, institute
The 3rd level haulage gallery 33 is stated to be connected with the 4th level haulage gallery 34；
The auxiliary shaft 9 is connected with the first level haulage gallery 31 and the second level haulage gallery 32.
Further, the courtyard 5 includes people's row vent (-escape) raise 51 and slot raise 52；
People's row vent (-escape) raise 51 connects the second level haulage gallery 32 and the 3rd level haulage gallery 33；
The slot raise 52 connects the 3rd level haulage gallery 33 and the 4th level haulage gallery 34；
Air is along the second level haulage gallery 32, people's row vent (-escape) raise 51, the 3rd level haulage gallery
33rd, the flow direction of the slot raise 52 and the 4th level haulage gallery 34 flow to the Stope face 6.
In above-mentioned specific embodiment, people's row vent (-escape) raise 51 and slot raise 52 are specifically provided with, except completing
Outside water conservancy diversion hot-air described above, the design of people's row vent (-escape) raise 51 and slot raise 52 can ensure hot-air in structure
Intensification to soil, alleviates the freezing of equipment in the suitable mine of lifting of temperature.
Further, the first level haulage gallery 31, the second level haulage gallery 32, the 3rd level haulage gallery 33
With the parallel setting of the 4th level haulage gallery 34.
Further, people's row vent (-escape) raise 51 and the slot raise 52 with the first level haulage gallery
31st, any one is perpendicular for the second level haulage gallery 32, the 3rd level haulage gallery 33 and the 4th level haulage gallery 34.
Further, the first level haulage gallery 31 described in the outlet of the ramp 7 and the 3rd stage casing are transported
Defeated gallery 33.
Present invention also offers a kind of High-cold regions mine ventilation system, including the High-cold regions mine ventilation structure.
Because the concrete structure of the High-cold regions mine ventilation structure, the principle of work and power and technique effect are detailed above
Thin narration, is just repeated no more herein, and any technology contents for being related to the High-cold regions mine ventilation structure are referred to above
Record.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
Pipe has been described in detail with reference to foregoing embodiments to the present invention, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of High-cold regions mine ventilation structure, it is characterised in that including downcast (1), returnairshaft (2) and multiple level haulages
Gallery (3)；
The air inlet of the downcast (1) is in communication with the outside, and the air outlet of the downcast (1) is through the level haulage gallery
(3) connected with the returnairshaft (2), and be in communication with the outside through the returnairshaft (2)；
The air inlet is provided with preheating gallery (4), and preheating gallery (4) is for the air to entering the downcast (1)
Heat up in advance；
Courtyard (5) is provided between multiple level haulage gallerys (3), makes the air for entering the downcast (1) through the day
Well (5) flowing in the adjacent level haulage gallery (3), and stope work is entered by the level haulage gallery (3)
Face (6)；
Ramp (7) is communicated between the level haulage gallery (3), the ramp (7) is with the Stope face (6) even
It is logical, for into the air conducting of the Stope face (6) to the returnairshaft (2), and will be flowed back along the returnairshaft (2)
To the external world.
2. mine ventilation structure in High-cold regions according to claim 1, it is characterised in that is set in the Stope face (6)
Portable blower is equipped with, in will be into the air conducting of the Stope face (6) to the ramp (7), along the ramp
(7) returnairshaft (2) is flowed to.
3. mine ventilation structure in High-cold regions according to claim 2, it is characterised in that multiple level haulage gallerys
(3) including in the first level haulage gallery (31), the second level haulage gallery (32), the 3rd level haulage gallery (33) and the 4th
Section haulage way (34)；
The first level haulage gallery (31), the second level haulage gallery (32), the 3rd level haulage gallery (33) and the 4th
The entrance of level haulage gallery (34) is connected with the downcast (1)；
The outlet of the first level haulage gallery (31), the second level haulage gallery (32) and the 3rd level haulage gallery (33)
Connected with the returnairshaft (2), meanwhile, the outlet of the 4th level haulage gallery (34) is with the Stope face (6) even
It is logical.
4. mine ventilation structure in High-cold regions according to claim 3, it is characterised in that also including main shaft (8) and auxiliary shaft
(9)；
The main shaft (8) and the auxiliary shaft (9) are connected with the level haulage gallery (3), are formed from the main shaft (8), edge
The fractional channel of the level haulage gallery (3) the extremely auxiliary shaft (9)；
Local fan is provided with the level haulage gallery (3), for driving air along the flow direction stream of the fractional channel
It is dynamic.
5. mine ventilation structure in High-cold regions according to claim 4, it is characterised in that the main shaft (8) and described first
Level haulage gallery (31), the second level haulage gallery (32), the 3rd level haulage gallery (33) and the described 4th
Level haulage gallery (34) is connected；
The auxiliary shaft (9) connects with the first level haulage gallery (31) and the second level haulage gallery (32).
6. mine ventilation structure in High-cold regions according to claim 5, it is characterised in that the courtyard (5) is logical including people's row
Wind courtyard (51) and slot raise (52)；
People's row vent (-escape) raise (51) connects the second level haulage gallery (32) and the 3rd level haulage gallery
(33)；
The slot raise (52) connects the 3rd level haulage gallery (33) and the 4th level haulage gallery (34)；
Air is along the second level haulage gallery (32), people's row vent (-escape) raise (51), the 3rd level haulage gallery
(33), the flow direction of the slot raise (52) and the 4th level haulage gallery (34) flow to the Stope face (6).
7. mine ventilation structure in High-cold regions according to claim 6, it is characterised in that the first level haulage gallery
(31), the second level haulage gallery (32), the 3rd level haulage gallery (33) and the 4th level haulage gallery (34) is parallel sets
Put.
8. mine ventilation structure in High-cold regions according to claim 7, it is characterised in that people's row vent (-escape) raise (51) and
The slot raise (52) is transported with the first level haulage gallery (31), the second level haulage gallery (32), the 3rd stage casing
Any one is perpendicular for defeated gallery (33) and the 4th level haulage gallery (34).
9. mine ventilation structure in High-cold regions according to claim 8, it is characterised in that the outlet of the ramp (7) connects
The logical first level haulage gallery (31) and the 3rd level haulage gallery (33).
10. a kind of High-cold regions mine ventilation system, it is characterised in that including the High-cold regions as described in claim any one of 1-9
Mine ventilation structure.
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| CN201611189902.XA CN106703864A (en) | 2016-12-21 | 2016-12-21 | High-cold mine ventilation structure and high-cold mine ventilation system |
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| CN201611189902.XA CN106703864A (en) | 2016-12-21 | 2016-12-21 | High-cold mine ventilation structure and high-cold mine ventilation system |
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| CN108678794A (en) * | 2018-05-17 | 2018-10-19 | 巴彦淖尔西部铜业有限公司 | A method of it is entered the wind using goaf and waste roadway ground temperature preheating mine |
| CN108678794B (en) * | 2018-05-17 | 2020-02-21 | 巴彦淖尔西部铜业有限公司 | Method for preheating mine inlet air by using ground temperature of goaf and waste roadway |
| CN109595025A (en) * | 2018-12-18 | 2019-04-09 | 河北钢铁集团矿业有限公司 | A kind of air return structure of Underground Metallic Mines |
| CN109882230A (en) * | 2019-02-27 | 2019-06-14 | 长沙矿山研究院有限责任公司 | It is a kind of exploit the intensive vein deposit of multilayer parallel stage method of ventilation and network |
| CN109882230B (en) * | 2019-02-27 | 2023-10-13 | 长沙矿山研究院有限责任公司 | Stage ventilation method and network for mining multilayer parallel dense vein-like ore deposit |
| CN110953010A (en) * | 2020-01-02 | 2020-04-03 | 长沙有色冶金设计研究院有限公司 | Underground mine ventilation system and air distribution method |
| CN110953010B (en) * | 2020-01-02 | 2021-07-23 | 长沙有色冶金设计研究院有限公司 | Air quantity distribution method for underground mine |
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