CN108005718A - A kind of metal mine consolidated fill method - Google Patents
A kind of metal mine consolidated fill method Download PDFInfo
- Publication number
- CN108005718A CN108005718A CN201711367522.5A CN201711367522A CN108005718A CN 108005718 A CN108005718 A CN 108005718A CN 201711367522 A CN201711367522 A CN 201711367522A CN 108005718 A CN108005718 A CN 108005718A
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- China
- Prior art keywords
- metal mine
- fill method
- filling
- consolidated fill
- slurry
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000002184 metal Substances 0.000 title claims abstract description 16
- 238000011049 filling Methods 0.000 claims abstract description 39
- 238000002156 mixing Methods 0.000 claims abstract description 22
- 239000000945 filler Substances 0.000 claims abstract description 8
- 206010001497 Agitation Diseases 0.000 claims abstract description 5
- 238000013019 agitation Methods 0.000 claims abstract description 5
- 238000002360 preparation method Methods 0.000 claims abstract description 5
- 238000005065 mining Methods 0.000 claims description 29
- 239000002002 slurry Substances 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 239000004568 cement Substances 0.000 claims description 16
- 238000009412 basement excavation Methods 0.000 claims description 14
- 239000004570 mortar (masonry) Substances 0.000 claims description 12
- 239000004576 sand Substances 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000005429 filling process Methods 0.000 abstract description 3
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000011707 mineral Substances 0.000 description 6
- 239000011435 rock Substances 0.000 description 6
- 238000003756 stirring Methods 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 201000004569 Blindness Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005713 exacerbation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007789 sealing Methods 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
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/005—Methods or devices for placing filling-up materials in underground workings characterised by the kind or composition of the backfilling material
-
- 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
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/08—Filling-up hydraulically or pneumatically
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)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a kind of metal mine consolidated fill method.This placement method comprises the following steps：1) preparation in place is filled；2) the preliminary mixing of filler；3) secondary agitation of filler；4) fill.It is on duty that filling process of the present invention is not required to very important person in stowing operation, and staff does not have to enter filling area in stowing operation, need to be only fed in ground support and pay attention to observing exhaust outlet outside filling area, ensure that the safety in stowing operation；The placement method of the present invention realizes continuous filling at the same time, ensure that pack effectiveness, advantageously ensures that the stabilization of stope ground pressure, reduces the probability of happening of geological disaster.
Description
Technical field
The present invention relates to a kind of metal mine consolidated fill method.
Background technology
China is production and the consumption big country of mineral resources, and only non-coal mine just has more than 110,000, produces ore nearly 5,000,000,000 per year
Ton, annual value of production is more than 500,000,000,000 yuan.Mining is exploitation of mineral resources and the basis that utilizes, but mining is providing former material for the mankind
While material, ground surface environment is also inevitably destroyed.With the rapid development of industry, the demand of mineral products is increasing rapidly
Add, mineral resources are but in exhaustion increasingly, and safety, the environmental problem of resources development and utilization initiation are quite prominent, and most of China
Bargh's production scale is small, and technology falls behind, and production blindness, passivity are big, cause mine environment severe exacerbation, to certainly
Right ecological environment and social and economic activities bring very big negative effect.Therefore, governmental authorities at all levels, environment and mining
Brainstrust is all realizing zero-emission for mining industry and is not destroying ground surface environment, reaches safe efficient, environmentally friendly and abundant recycling not
The target of renewable resource and effort, this requires not by trash discharge, in earth's surface, goaf is by timely and effective filling, not on ground
Table exploit casting resin, while will also safely, substantially effectively recycle mineral resources.Due to essential step in the method for mining by the way of filling
Suddenly it is that goaf is filled, provides integer support to country rock by obturation, control Ground pressure activity, provided for production ore
Working face, therefore, the method for mining by the way of filling are just increasingly being subject to the attention and popularization of Mining At Home And Abroad circle, at present domestic and international coloured ore deposit
Mountain, black mine, or even colliery all expand the application range of the method for mining by the way of filling in more research.
Consolidated fill is the core of the method for mining by the way of filling, it is by sand (including mineral dressing wastes, i.e. tailings), barren rock the like waste
Mix a certain proportion of cementitious material and water forms the obturation with certain fluidity, stope is transported to by pipeline self
Goaf, achievees the purpose that filling.It had both reduced tailings and barren rock to surface discharge, avoids pollution environment and takes good farmland, again
Stope ground pressure can be efficiently controlled, safeguard Stope stability, avoid or reduce the geology calamities such as rock burst, gushing water, rock shifting, surface subsidence
Evil, improves the production efficiency of ore, effectively recycles difficulty mining bed resource, be that buried, high-ground stress mining area and unstable rock are adopted
Field and the safely effectively mining methods of " under three " orebody mining first choice.But current consolidated fill method needs artificial value
Keeping, staff has certain danger in filling area, and is intermittent operation, have impact on the efficiency of filling, so, it is cementing
The method of filling needs to be improved.
The content of the invention
It is an object of the invention to provide a kind of metal mine consolidated fill method.
The technical solution used in the present invention is：
A kind of metal mine consolidated fill method, comprises the following steps：
1) preparation in place is filled：Mining excavation scene is cleared up, closure barricade is set at the hole of mining excavation, in barricade
Top reserve drainage gas port, drainage gas port is built into drainage exhaust pipeline；
2) the preliminary mixing of filler：Classified tailings and cement are stirred in stirrer for mixing, obtain dry-mixed mortar；
3) secondary agitation of filler：Dry-mixed mortar and water are mixed in secondary mixer, obtain casting resin
Slurry；
4) fill：Filling slurry is flowed automatically into mining excavation by filling pipeline, when the packed height of slurry reaches draining
During exhaust outlet, drainage exhaust pipeline is blocked, stops, for slurry, blocking filling pipeline.
In step 1), the width of barricade>50cm.
In step 1), the cement that thickness is 4cm~6cm is smeared outside barricade.
In step 1), a diameter of 4cm~6cm of drainage gas port.
In step 2), the mass ratio of classified tailings and cement is (28~32)：10.
In step 2), the rotating speed of mixing is 25r/min~40r/min, and mixing time is 10min~20min.
In step 3), the mass ratio of dry-mixed mortar and water is (65~75)：30.
In step 3), the rotating speed of mixing is 40r/min~60r/min, and mixing time is 25s~35s.
In step 4), the outlet of filling pipeline is placed in the highest point of mining excavation.
The beneficial effects of the invention are as follows：
It is on duty that filling process of the present invention is not required to very important person in stowing operation, and staff does not have to enter to fill in stowing operation
Area is filled out, need to be only fed in ground support and observation exhaust outlet is paid attention to outside filling area, ensure that the safety in stowing operation；
The placement method of the present invention realizes continuous filling at the same time, ensure that pack effectiveness, advantageously ensures that the stabilization of stope ground pressure, drops
The probability of happening of low geological disaster.
Embodiment
A kind of metal mine consolidated fill method, comprises the following steps：
1) preparation in place is filled：Mining excavation scene is cleared up, closure barricade is set at the hole of mining excavation, in barricade
Top reserve drainage gas port, drainage gas port is built into drainage exhaust pipeline；
2) the preliminary mixing of filler：Classified tailings and cement are stirred in stirrer for mixing, obtain dry-mixed mortar；
3) secondary agitation of filler：Dry-mixed mortar and water are mixed in secondary mixer, obtain casting resin
Slurry；
4) fill：Filling slurry is flowed automatically into mining excavation by filling pipeline, when the packed height of slurry reaches draining
During exhaust outlet, drainage exhaust pipeline is blocked, stops, for slurry, blocking filling pipeline.
Preferably, in step 1), the width of barricade>50cm.
Preferably, in step 1), the cement that thickness is 4cm~6cm is smeared outside barricade；It is further preferred that in step 1), gear
The cement that thickness is 5cm is smeared outside wall.
Preferably, in step 1), a diameter of 4cm~6cm of drainage gas port；It is further preferred that in step 1), draining
A diameter of 5cm of exhaust outlet.
Preferably, in step 2), the mass ratio of classified tailings and cement is (28~32)：10；It is further preferred that step
2) in, the mass ratio of classified tailings and cement is 30：10.
Preferably, in step 2), the rotating speed of mixing is 25r/min~40r/min, mixing time for 10min~
20min。
Preferably, in step 3), the mass ratio of dry-mixed mortar and water is (65~75)：30；It is further preferred that step 3)
In, the mass ratio of dry-mixed mortar and water is 70：30.
Preferably, in step 3), the rotating speed of mixing is 40r/min~60r/min, and mixing time is 25s~35s.
Preferably, in step 4), the outlet of filling pipeline is placed in the highest point of mining excavation.
Present disclosure is described in further detail below by way of specific embodiment.
Embodiment：
1st, the preparation in place is filled
By the discharge port of filling pipeline one end access secondary mixer, the other end is connected into need along mine and mining passage
The mining excavation to be filled, outlet are placed in the highest point of mining excavation；Site clearing, takes out all useful articles, Ran Houyong
Brick and cement are built a wall, and build the conduit into a diameter 5cm or so to drainage exhaust in the tip position of barricade, it is empty to shut mining
The hole in area, the width of barricade cave in prevent backstop wall at least above 50cm, smear the cement of one layer of about 5cm thickness on the wall, increase
The anti-impact force of barricade and prevent water from oozing out.
2nd, the preliminary mixing of filling slurry
Cement is sent into vertical sand warehouse by way of pumping, classified tailings are pushed into sand warehouse by bull-dozer, pass through spiral shell
Batcher is revolved, controls the revolution of screw(-type) feeder accurately to control classified tailings：The mass ratio of cement is 3：1 adds in mixer,
Mixer is opened, controls rotating speed 25r/min~40r/min, airborne dust during preventing cement mixing, mixing time 10min.Open
Tentatively uniformly mixed dry-mixed mortar is transported to secondary mixer by the discharge port of mixer to half discharge state.
3rd, secondary agitation
After dry-mixed mortar after stirring evenly for the first time is conveyed into secondary mixer, by dry-mixed mortar：Water=7：3 mass ratio
Water is added, the slurry after water will be added quickly to stir, speed of agitator control is 40r/min-60r/min, quick to stir slurry 30s,
It is sufficiently mixed uniformly with water, while the discharge port of secondary mixer is opened, the slurry for making to be stirred passes through conveyance conduit
The goaf filled into needs, since in this case, final pulp density is 70%, slurry can be passed through by gravity flow
Conveyance conduit enters goaf, while it is also ensured that the Self-leveling of slurry, it is not necessary to manpower intervention.
4th, the processing of discharge outlet
Due to the presence of barricade, the filling in goaf must leave exhaust outlet mouth, otherwise work of the filling slurry in pressure
It can burst filling pipeline under.But when the height of filling reaches exhaust outlet, exhaust outlet outflow is crossed on the water meeting side in slurry, this
When block discharge duct, prevent slurry from pipeline opening flow out, while stop for slurry, goaf entrance is blocked, by it
Access gully.
5th, the cleaning of filling pipeline
After stopping feed, water supply is increased 2 times at secondary mixer, continues to stir, mixer is cleaned out, prevented
Sealing mud consolidates, while water can largely enter filling pipeline, clean up main pipeline, in case next time, filling used.
The advantages of filling process of the present invention is that to be not required to very important person in stowing operation on duty, does not have to enter filling in stowing operation
Area, staff need to only be fed in ground support and pay attention to outside filling area observation exhaust outlet, ensure that in stowing operation
Safety.The placement method of the present invention realizes continuous filling at the same time, ensure that pack effectiveness, advantageously ensures that stope ground pressure
Stablize, reduce the probability of happening of geological disaster.
Claims (9)
- A kind of 1. metal mine consolidated fill method, it is characterised in that：Comprise the following steps：1) preparation in place is filled：Mining excavation scene is cleared up, closure barricade is set at the hole of mining excavation, on the top of barricade Portion reserves drainage gas port, and drainage gas port is built into drainage exhaust pipeline；2) the preliminary mixing of filler：Classified tailings and cement are stirred in stirrer for mixing, obtain dry-mixed mortar；3) secondary agitation of filler：Dry-mixed mortar and water are mixed in secondary mixer, obtain filling slurry；4) fill：Filling slurry is flowed automatically into mining excavation by filling pipeline, when the packed height of slurry reaches drainage exhaust During mouth, drainage exhaust pipeline is blocked, stops, for slurry, blocking filling pipeline.
- A kind of 2. metal mine consolidated fill method according to claim 1, it is characterised in that：In step 1), barricade Width>50cm.
- A kind of 3. metal mine consolidated fill method according to claim 2, it is characterised in that：In step 1), outside barricade Smear the cement that thickness is 4cm~6cm.
- A kind of 4. metal mine consolidated fill method according to claim 1, it is characterised in that：In step 1), drainage A diameter of 4cm~6cm of gas port.
- A kind of 5. metal mine consolidated fill method according to claim 1, it is characterised in that：In step 2), tail is classified The mass ratio of sand and cement is (28~32)：10.
- A kind of 6. metal mine consolidated fill method according to claim 5, it is characterised in that：In step 2), mixing is stirred The rotating speed mixed is 25r/min~40r/min, and mixing time is 10min~20min.
- A kind of 7. metal mine consolidated fill method according to claim 1, it is characterised in that：In step 3), dry-mixed sand The mass ratio of slurry and water is (65~75)：30.
- A kind of 8. metal mine consolidated fill method according to claim 7, it is characterised in that：In step 3), mixing is stirred The rotating speed mixed is 40r/min~60r/min, and mixing time is 25s~35s.
- A kind of 9. metal mine consolidated fill method according to claim 1, it is characterised in that：In step 4), filling pipe The outlet in road is placed in the highest point of mining excavation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711367522.5A CN108005718A (en) | 2017-12-18 | 2017-12-18 | A kind of metal mine consolidated fill method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711367522.5A CN108005718A (en) | 2017-12-18 | 2017-12-18 | A kind of metal mine consolidated fill method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108005718A true CN108005718A (en) | 2018-05-08 |
Family
ID=62059643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711367522.5A Pending CN108005718A (en) | 2017-12-18 | 2017-12-18 | A kind of metal mine consolidated fill method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108005718A (en) |
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|---|---|---|---|---|
| CN1067707A (en) * | 1991-06-12 | 1993-01-06 | 中国矿业大学北京研究生部 | High-water material cementing fill technology for metal mine |
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Application publication date: 20180508 |
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