CN107387148A - A kind of antifreeze method of underground mine winter lifting pit shaft - Google Patents
A kind of antifreeze method of underground mine winter lifting pit shaft Download PDFInfo
- Publication number
- CN107387148A CN107387148A CN201710733485.9A CN201710733485A CN107387148A CN 107387148 A CN107387148 A CN 107387148A CN 201710733485 A CN201710733485 A CN 201710733485A CN 107387148 A CN107387148 A CN 107387148A
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- China
- Prior art keywords
- pit shaft
- tunnel
- stage casing
- lifting pit
- underground
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- 230000002528 anti-freeze Effects 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 claims abstract description 33
- 238000009423 ventilation Methods 0.000 claims abstract description 11
- 238000010276 construction Methods 0.000 claims abstract description 10
- 239000011435 rock Substances 0.000 claims abstract description 6
- 238000009413 insulation Methods 0.000 claims abstract description 4
- 230000000191 radiation effect Effects 0.000 claims abstract description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000007710 freezing Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000008014 freezing Effects 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21F1/08—Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The present invention relates to mine ventilation and safety technical field, and in particular to a kind of antifreeze method of underground mine winter lifting pit shaft；The Cryogenic air of earth's surface is introduced by vent (-escape) raise by underground by construction ventilation courtyard and produces stage casing tunnel, airflow channel is built again in producing stage casing tunnel in underground, so that form preheated air under the heat radiation effect of Cryogenic air exposed rock mass in airflow channel, preheated air is pumped to the potential icing location of lifting pit shaft by the drainage blower fan at production stage casing tunnel crossdrift and purged repeatedly, so as to realize the insulation of lifting pit shaft with antifreeze, with construction cost is low, energy-conserving and environment-protective, it is safe and efficient the advantages of.
Description
Technical field
The present invention relates to mine ventilation and safety technical field, and in particular to a kind of underground mine winter lifting pit shaft is prevented
Jelly method.
Background technology
In northern China cold district, winter earth's surface temperature is relatively low for a long time, and mine hoisting pit shaft will necessarily as downcast
There is pit shaft icing phenomenon, in turn result in geomantic omen pipeline bursting by freezing, fall ice and the safety problem such as hurt sb.'s feelings, or even card tank, pendant tank wound occurs
Accident is died, has a strong impact on normal production and the personal security in mine.At present, domestic coal master will use hot-blast stove technology to entering well
Low temperature is distinguished and admirable to carry out heat temperature raising to realize pre- antifreeze well, due to there is high pollution, high energy consumption issues, progressively by state
Family's limitation uses；And non-coal mine is then to be formed by surface subsidence goaf and long range Abandoned Tunnel preheated air in pit shaft
The reverse distinguished and admirable method in portion lifted the heat-preserving anti-freezing of pit shaft, for newly-built underground mine, required by the technology
Often it is difficult to meet using the precondition in discarded long range tunnel or surface subsidence goaf, and uses its fortune of hot-blast stove technology
Row cost is again too high.
The content of the invention
It is to be directed to the underground mine winter it is an object of the invention to provide a kind of antifreeze method of lifting of underground mine winter pit shaft
The icing potential safety hazard of Ji Tisheng pit shafts and equipment and a kind of construction cost for proposing is low, energy-conserving and environment-protective, safe and efficient pit shaft
Heat-preserving anti-freezing method.
The purpose of the present invention is achieved through the following technical solutions：
A kind of antifreeze method of underground mine winter lifting pit shaft：By construction ventilation courtyard by the Cryogenic air of earth's surface by
Vent (-escape) raise introduces underground production stage casing tunnel, builds airflow channel again in producing stage casing tunnel in underground so that Cryogenic air
Preheated air is formed under the heat radiation effect of exposed rock mass in airflow channel, preheated air passes through installed in production stage casing tunnel
Drainage blower fan at crossdrift is pumped to the potential icing location of lifting pit shaft and purged repeatedly, so as to realize the insulation of lifting pit shaft
With it is antifreeze.
Described airflow channel is that the connection of construction ventilation courtyard is pacified in section tunnel behind production stage casing tunnel in production up and down
Common air door is filled to carry out blocking formation.
Being dug at described production stage casing tunnel crossdrift has triangle round island type tunnel, one jiao of installation in triangle round island type tunnel
Blower fan is drained, another angle is blocked using non-pressure damper.
Described potential icing location is lifting pit shaft part more than mine zone of constant temperature.
Beneficial effects of the present invention：
Itd is proposed, neutralizing very well the present invention be directed to the icing potential safety hazard of underground mine winter lifting pit shaft and equipment
Mine hot blast heater freezing proof technique high pollution high energy consumption issues, and newly-built underground mine set discarded long range tunnel,
Execution conditions are difficult to meet when the preheating of surface subsidence goaf is antifreeze, and use hot-blast stove freezing proof technique its operating cost excessively
Higher problem；The present invention takes full advantage of the multilevel production stage casing tunnel of mine, adds Cryogenic air and exposed rock mass
Contact area, distinguished and admirable pre-heat effect is good, and mean wind speed is smaller in tunnel during operation, production operation in stage casing is influenceed micro-
It is weak, while the preheated air emphasis conveyed is purged repeatedly for the potential icing location of lifting pit shaft, in anti-frost protection object
Upper target sets clear and definite, high insulating effect.Meanwhile the present invention is equal for Newly-built mine, the old mine of northern China cold district
Generally it is applicable.
Brief description of the drawings
Fig. 1 show present invention lifting pit shaft and preheats antifreeze process schematic.
Fig. 2 is present invention drainage assembling stage casing A-A directional profile figures.
Fig. 3 is that preheated air of the present invention collects stage casing B-B directional profile figures.
Wherein：1 earth's surface, 2 Cryogenic airs, 3 vent (-escape) raises, 31 vent (-escape) raises, 32 vent (-escape) raises, 33 footrills, 4 production stage casings
Tunnel, 41 first production stage casing tunnels, 42 second production stage casing tunnels, 43 third production stage casing tunnels, 5 preheated airs, 6 is common
Air door, 7 drainage blower fans, 8 potential icing locations, 9 zones of constant temperature, 10 triangle round island type tunnels, 11 non-pressure dampers, 12 lifting pit shafts,
Arrow represents wind direction in figure.
Embodiment
A kind of antifreeze method of underground mine winter lifting pit shaft：It is by construction ventilation courtyard 31 that the low temperature of earth's surface 1 is empty
Gas 2 introduces underground production stage casing tunnel by vent (-escape) raise 31, then is producing the side of stage casing tunnel 4 close to the underground of lifting pit shaft 12
Construction ventilation courtyard 32, communicated with first to third production stage casing tunnel in the vertical direction of two vent (-escape) raises, by three
Common air door 6 is separately positioned on the first production stage casing tunnel 41, second production stage casing tunnel 42 and third production stage casing tunnel 43
In blocked, so as to form airflow channel side by side, be provided with first production stage casing tunnel 41 on common air door 6
Position between two vent (-escape) raises, to be arranged on common on the second production stage casing tunnel 42 and third production stage casing tunnel 43
The position of air door 6 is to cross vent (-escape) raise 32 and close to the side of lifting pit shaft 12；The exposed rock in airflow channel of Cryogenic air 2
Preheated air 5 is formed under the heat radiation effect of body, preheated air 5 passes through drawing at the first production crossdrift of stage casing tunnel 41
Flow fan 7 pump to lifting pit shaft 12 potential icing location 8 purged repeatedly, so as to realize lifting pit shaft 12 insulation with
It is antifreeze.
Being dug at the first described production crossdrift of stage casing tunnel 41 has triangle round island type tunnel 10, triangle round island type tunnel 10
It is provided with close to one jiao of preheated air 5 air flow direction and pumps preheated air 5 to the drainage blower fan 7 in potential icing location 8, separately
One jiao is blocked using non-pressure damper 11, prevents the iterative cycles in triangle round island type tunnel 10 of preheated air 5.
Described potential icing location 8 is the part of lifting pit shaft 12 of mine zone of constant temperature more than 9.
Its specific implementation step is as follows：
1st, the vent (-escape) raise 31 and footrill 33 for introducing Cryogenic air 2 are dug：Vent (-escape) raise 31 is suitable for reading should to be provided with 20~30m
Footrill 33 be used for lead to earth's surface 1, the specification of vent (-escape) raise 31 is 2m × 1.5m, must be with superficial part first to the 3rd in vertical direction
Production stage casing tunnel communicates.
2nd, the vent (-escape) raise 32 of conveying preheated air 5 is dug：Vent (-escape) raise 32 takes relay courtyard to be constructed, Vertical Square
Connect up underground first and arrive third production stage casing tunnel, specification is 2m × 1.5m.
3rd, the airflow channel of Cryogenic air preheating is built：According to the caloradiance of mine exposed rock mass, making full use of
On the basis of original development work, development heading, a common air door is set on first to third production stage casing tunnel respectively
6, formation second produces the airflow channel side by side on stage casing tunnel 42 and third production stage casing tunnel 43, and the length of airflow channel is equal
Should be in more than 300m.
4th, the selection and setting of blower fan are drained：It is 38m in view of the depth of mine zone of constant temperature 9, stage casing tunnel is produced first
41 crossdrifts dig triangle round island type tunnel 10, and triangle round island type tunnel 10 is provided with close to one jiao of the air flow direction of preheated air 5
Preheated air 5 is pumped to the drainage blower fan 7 in potential icing location 8, another angle and blocked using non-pressure damper 11, is prevented pre-
The iterative cycles in triangle round island type tunnel 10 of hot-air 5.
It is worth noting that, existing vent (-escape) raise in mine should be used low as introducing in the reality construction of mine as far as possible
Warm air, the airflow channel for conveying preheated air.Meanwhile it should fully coordinate and adopt during equipment system operation in the winter time
Relation between field explosion ventilation and lifting pit shaft freeze-proof ventilation function, ensures the safety in production in mine.
Claims (4)
1. the antifreeze method of a kind of underground mine winter lifting pit shaft, it is characterised in that by construction ventilation courtyard (3) by earth's surface
(1) Cryogenic air (2) introduces underground production stage casing tunnel (4) by vent (-escape) raise (3), is produced in underground in stage casing tunnel (4)
Airflow channel is built again so that forms preheated air under the heat radiation effect of Cryogenic air (2) exposed rock mass in airflow channel
(5), preheated air (5) is pumped to lifting pit shaft (12) by the drainage blower fan (7) at production stage casing tunnel (4) crossdrift
Potential icing location (8) is purged repeatedly, so as to realize lifting pit shaft (12) insulation with it is antifreeze.
2. the antifreeze method of a kind of underground mine winter lifting pit shaft according to claim 1, it is characterised in that described
Airflow channel is that section tunnel (4) middle installation is common in production after production stage casing tunnel (4) above and below construction ventilation courtyard (3) connection
Air door (6) carries out blocking formation.
3. the antifreeze method of a kind of underground mine winter lifting pit shaft according to claim 2, it is characterised in that described
Being dug at production stage casing tunnel (4) crossdrift has triangle round island type tunnel (10), and one jiao of installation in triangle round island type tunnel (10) is drawn
Flow fan (7), another angle are blocked using non-pressure damper (11).
4. the antifreeze method of a kind of underground mine winter lifting pit shaft according to claim 3, it is characterised in that described
Potential icing location (8) is lifting pit shaft (12) part more than mine zone of constant temperature (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710733485.9A CN107387148A (en) | 2017-08-24 | 2017-08-24 | A kind of antifreeze method of underground mine winter lifting pit shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710733485.9A CN107387148A (en) | 2017-08-24 | 2017-08-24 | A kind of antifreeze method of underground mine winter lifting pit shaft |
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| Publication Number | Publication Date |
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| CN107387148A true CN107387148A (en) | 2017-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710733485.9A Pending CN107387148A (en) | 2017-08-24 | 2017-08-24 | A kind of antifreeze method of underground mine winter lifting pit shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107387148A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110118098A (en) * | 2019-05-14 | 2019-08-13 | 中钢集团马鞍山矿山研究院有限公司 | A kind of winterization system for extremely frigid zones underground mine Intake shaft |
| CN110158529A (en) * | 2019-06-28 | 2019-08-23 | 新昌宠信机械科技有限公司 | Railcar is cleared up safely and effectively drained to a kind of high-speed rail tunnel icicle |
| CN115075877A (en) * | 2022-06-30 | 2022-09-20 | 招金矿业股份有限公司 | Method for preventing large block ice from forming on mine shaft wall |
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| CN202187745U (en) * | 2011-08-27 | 2012-04-11 | 张茂勇 | New energy air conditioning system for preventing freezing of mine well mouth and earth surface |
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2017
- 2017-08-24 CN CN201710733485.9A patent/CN107387148A/en active Pending
Patent Citations (6)
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110118098A (en) * | 2019-05-14 | 2019-08-13 | 中钢集团马鞍山矿山研究院有限公司 | A kind of winterization system for extremely frigid zones underground mine Intake shaft |
| CN110118098B (en) * | 2019-05-14 | 2020-10-09 | 中钢集团马鞍山矿山研究总院股份有限公司 | Anti-freezing system for air inlet shaft of underground mine in alpine region |
| CN110158529A (en) * | 2019-06-28 | 2019-08-23 | 新昌宠信机械科技有限公司 | Railcar is cleared up safely and effectively drained to a kind of high-speed rail tunnel icicle |
| CN115075877A (en) * | 2022-06-30 | 2022-09-20 | 招金矿业股份有限公司 | Method for preventing large block ice from forming on mine shaft wall |
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Application publication date: 20171124 |