CN108167017A - A kind of metal mine consolidated fill method of environmental protection cementitious material - Google Patents
A kind of metal mine consolidated fill method of environmental protection cementitious material Download PDFInfo
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- CN108167017A CN108167017A CN201711368603.7A CN201711368603A CN108167017A CN 108167017 A CN108167017 A CN 108167017A CN 201711368603 A CN201711368603 A CN 201711368603A CN 108167017 A CN108167017 A CN 108167017A
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- cementitious material
- environmentally friendly
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- 239000000463 material Substances 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 25
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 20
- 239000002184 metal Substances 0.000 title claims abstract description 20
- 230000007613 environmental effect Effects 0.000 title claims abstract description 7
- 239000002002 slurry Substances 0.000 claims abstract description 33
- 239000004568 cement Substances 0.000 claims abstract description 27
- 239000010881 fly ash Substances 0.000 claims abstract description 17
- 239000000843 powder Substances 0.000 claims abstract description 16
- 238000002360 preparation method Methods 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 206010001497 Agitation Diseases 0.000 claims abstract description 5
- 238000013019 agitation Methods 0.000 claims abstract description 5
- 238000005065 mining Methods 0.000 claims description 29
- 239000003638 chemical reducing agent Substances 0.000 claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 14
- 238000009412 basement excavation Methods 0.000 claims description 14
- 239000011268 mixed slurry Substances 0.000 claims description 9
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 7
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 7
- 239000010440 gypsum Substances 0.000 claims description 7
- 229910052602 gypsum Inorganic materials 0.000 claims description 7
- 239000004571 lime Substances 0.000 claims description 7
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 7
- DGVVJWXRCWCCOD-UHFFFAOYSA-N naphthalene;hydrate Chemical compound O.C1=CC=CC2=CC=CC=C21 DGVVJWXRCWCCOD-UHFFFAOYSA-N 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 229920001732 Lignosulfonate Polymers 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 3
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 3
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 3
- 239000000194 fatty acid Substances 0.000 claims description 3
- 229930195729 fatty acid Natural products 0.000 claims description 3
- 150000004665 fatty acids Chemical class 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 229920000877 Melamine resin Polymers 0.000 claims description 2
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 2
- IIACRCGMVDHOTQ-UHFFFAOYSA-M sulfamate Chemical compound NS([O-])(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-M 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000002910 solid waste Substances 0.000 abstract description 3
- 230000001681 protective effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000003756 stirring Methods 0.000 description 7
- 229910052500 inorganic mineral Inorganic materials 0.000 description 6
- 239000011707 mineral Substances 0.000 description 6
- 239000011435 rock Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000005429 filling process Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 201000004569 Blindness Diseases 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 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
- 239000006028 limestone Substances 0.000 description 1
- 150000007974 melamines Chemical class 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 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
- 239000000377 silicon dioxide Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Ceramic Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses a kind of metal mine consolidated fill methods of environmentally friendly cementitious material.The metal mine consolidated fill method of this environmental protection cementitious material, includes the following steps：1) preparation in place is filled；2) preparation of environmentally friendly cementitious material；3) the preliminary mixing of filling slurry；4) secondary agitation of filling slurry；5) it fills.Present invention utilizes the solid waste resources such as miberal powder and flyash to be made a kind of environmentally friendly cementitious material, and applied in the consolidated fill of metal mine, can replace cement in the construction technology of filling in mine.The placement method of the present invention is safe and reliable, can realize prosthetic continuous filling on duty, while cement consumption is greatly reduced, improve the efficiency of construction, saved cost, be a kind of environmentally protective construction method.
Description
Technical field
The present invention relates to a kind of metal mine consolidated fill methods of environmentally friendly cementitious material.
Background technology
China is the production of mineral resources and consumption big country, 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, lead to 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 step essential 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 is just increasingly by the attention of Mining At Home And Abroad circle and popularization, current coloured ore deposit both at home and abroad
Mountain, black mine or even coal mine 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
It mixes 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 occupies 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, is 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.
The production of cement cementitious material can give off a large amount of CO2、SO2、NOxPernicious gases are waited, while generate a large amount of powder
Dirt causes environment huge pollution, and generates huge consumption to the non-renewable natural resources such as lime stone.Therefore, it grinds
It sends out a kind of using solid waste and other additives cement to be replaced to carry out the filling process in mine, has great importance.
Invention content
The purpose of the present invention is to provide a kind of metal mine consolidated fill methods of environmentally friendly cementitious material.
The technical solution used in the present invention is：
A kind of metal mine consolidated fill method of environmental protection cementitious material, includes the following steps：
1) preparation in place is filled：Mining excavation scene is cleared up, is set at the hole of mining excavation and blocks barricade, in barricade
Top reserve drainage gas port, drainage gas port is built into drainage exhaust pipeline；
2) preparation of environmentally friendly cementitious material：Cement, miberal powder, flyash, gypsum, lime, sodium carbonate and water-reducing agent are being stirred
It mixes in machine and mixes, obtain environmentally friendly cementitious material；
3) the preliminary mixing of filling slurry：Classified tailings and environmentally friendly cementitious material in stirrer for mixing are stirred, are obtained
Dry-mixed slurry；
4) secondary agitation of filling slurry：Dry-mixed slurry and water in secondary mixer are mixed, obtain casting resin
Slurry；
5) it fills：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), environmentally friendly cementitious material is made of the raw material of following mass parts：15~20 parts of cement, 75~85 parts of ore deposits
Powder, 70~80 parts of flyash, 10~15 parts of gypsum, 8~15 parts of lime, 3~7 parts of sodium carbonate, 1~3 part of water-reducing agent.
In step 2), cement is 32.5 class g cements, and miberal powder is S95 grades of ground granulated blast furnace slags, and flyash is I grade or II grade of F class
Flyash.
In step 2), water-reducing agent is lignin sulfonate water-reducing agent, naphthalene water reducer, melamine system water reducer, ammonia
At least one of base sulfonate based water reducer, fatty acid series water-reducing agent, poly carboxylic acid series water reducer.
In step 3), the mass ratio of classified tailings and environmentally friendly cementitious material is (28~32)：10.
In step 4), the water content of filling slurry is 25wt%~35wt%.
In step 5), the outlet of filling pipeline is placed in the highest point of mining excavation.
The beneficial effects of the invention are as follows：
Present invention utilizes the solid waste resources such as miberal powder and flyash to be made a kind of environmentally friendly cementitious material, and answered
In the consolidated fill of metal mine, cement can be replaced in the construction technology of filling in mine.The placement method peace of the present invention
It is complete reliable, it can realize prosthetic continuous filling on duty, while cement consumption is greatly reduced, improve the effect of construction
Rate has saved cost, is a kind of environmentally protective construction method.
Specific embodiment
A kind of metal mine consolidated fill method of environmental protection cementitious material, includes the following steps：
1) preparation in place is filled：Mining excavation scene is cleared up, is set at the hole of mining excavation and blocks barricade, in barricade
Top reserve drainage gas port, drainage gas port is built into drainage exhaust pipeline；
2) preparation of environmentally friendly cementitious material：Cement, miberal powder, flyash, gypsum, lime, sodium carbonate and water-reducing agent are being stirred
It mixes in machine and mixes, obtain environmentally friendly cementitious material；
3) the preliminary mixing of filling slurry：Classified tailings and environmentally friendly cementitious material in stirrer for mixing are stirred, are obtained
Dry-mixed slurry；
4) secondary agitation of filling slurry：Dry-mixed slurry and water in secondary mixer are mixed, obtain casting resin
Slurry；
5) it fills：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.
Preferably, in step 1), a diameter of 4cm~6cm of drainage gas port.
Preferably, in step 2), environmentally friendly cementitious material is made of the raw material of following mass parts：15~20 parts of cement, 75~
85 parts of miberal powders, 70~80 parts of flyash, 10~15 parts of gypsum, 8~15 parts of lime, 3~7 parts of sodium carbonate, 1~3 part of water-reducing agent.
Preferably, in step 2), cement be 32.5 class g cements, miberal powder be S95 grade ground granulated blast furnace slags, flyash be I grade or
II grade of F class flyash.
Preferably, in step 2), water-reducing agent is lignin sulfonate water-reducing agent, naphthalene water reducer, melamine series subtract
Aqua, at least one of sulfamate based water reducer, fatty acid series water-reducing agent, poly carboxylic acid series water reducer.
Preferably, in step 3), the mass ratio of classified tailings and environmentally friendly cementitious material is (28~32)：10.
Preferably, in step 4), the water content of filling slurry is 25wt%~35wt%.
Preferably, in step 5), 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 1：
1st, the preparation in place is filled
By the discharge port of filling pipeline one end access secondary mixer, the other end is connected along mine and mining channel into need
The mining excavation to be filled, outlet are placed in the highest point of mining excavation；All useful articles, Ran Houyong are taken out in site clearing
Brick and cement are built a wall, and build the conduit into a diameter 5cm or so to drainage exhaust in the top position of barricade, it is empty to shut mining
The hole in area, the width of barricade cave in prevent backstop wall at least more than 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 preparation of environmentally friendly cementitious material
The cement of 18 mass parts, the miberal powder of 77 mass parts, the flyash of 75 mass parts, 13 mass parts are added in blender
Gypsum, the lime of 10 mass parts, diminishing Liu of the sodium carbonate of 5 mass parts and 2 mass parts starts blender and stirs 10 minutes,
Environmentally friendly cementitious material is made.
Raw material used is described as follows：
Cement is 32.5 rank cement.
Miberal powder is the levigate made powder of blast-furnace cinder, and rank is S95 grades；Its chemical analysis and mass ratio are：
SiO2Content is 35.15%；CaO content is 43.46%；Content of MgO is 7.57%；Al2O3Content is 12.15%；The oxidation of S
Object content is 1.24%；Other oxides account for 0.43%；Its particle diameter distribution is：Particle of the grain size less than 2.65 μm accounts for 10wt%；
Particle of the grain size less than 5.3 μm accounts for 30wt%；Particle of the grain size less than 7.55 μm accounts for 50wt%；Grain size is less than 10.71 μm of
Grain accounts for 60wt%；Particle of the grain size less than 26.62 μm accounts for 90wt%.
Flyash is I grade of F class flyash；
Water-reducing agent is naphthalene water reducer.
3rd, the preliminary mixing of filling slurry
Environmentally friendly cementitious material by way of pumping is sent into vertical sand warehouse, classified tailings are pushed into sand by bull-dozer
Storehouse by screw(-type) feeder, controls the revolution of screw(-type) feeder accurately to control classified tailings：The mass ratio of environmentally friendly cementitious material is
3：1 adds in blender, opens blender, controls rotating speed 25r/min~40r/min, airborne dust during preventing powder from stirring, stirring
Time is 10min.The discharge port of blender is opened to half discharge state, tentatively uniformly mixed dry-mixed slurry is transported to secondary
Blender.
4th, secondary agitation
After dry-mixed slurry after stirring evenly for the first time is conveyed into secondary mixer, by dry-mixed slurry：Water=7：3 mass ratio
Water is added in, 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 made to be sufficiently mixed uniformly with water, while the discharge port of secondary mixer is opened, the slurry being stirred is made to pass 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, does not need to manpower intervention.
5th, the processing of discharge outlet
Due to the presence of barricade, the filling in goaf must be there are exhaust outlet mouth, and otherwise filling slurry is in the work of 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, be simultaneously stopped for slurry, goaf entrance is blocked, by it
Access gully.
6th, the cleaning of filling pipeline
After stopping feed, water supply is increased 2 times at secondary mixer, continues to stir, blender is cleaned out, prevented
Sealing mud consolidates, while water can largely enter filling pipeline, clean up main pipeline, in case next time, filling used.
It is on duty that the filling process of the present invention is not required to very important person in stowing operation, does not have to enter filling area, work in stowing operation
Making personnel in ground support need to only be fed and pay attention to outside filling area observation exhaust outlet, ensure that the peace in stowing operation
Entirely, while the charging formula of the present invention realizes continuous filling, greatly reduces the dosage of cement, is improving the same of construction efficiency
When, also greatly save cost.
Claims (10)
- A kind of 1. metal mine consolidated fill method of environmental protection cementitious material, it is characterised in that：Include the following steps：1) preparation in place is filled：Mining excavation scene is cleared up, is set at the hole of mining excavation and blocks barricade, on the top of barricade Portion reserves drainage gas port, and drainage gas port is built into drainage exhaust pipeline；2) preparation of environmentally friendly cementitious material：By cement, miberal powder, flyash, gypsum, lime, sodium carbonate and water-reducing agent in blender Middle mixing obtains environmentally friendly cementitious material；3) the preliminary mixing of filling slurry：Classified tailings and environmentally friendly cementitious material in stirrer for mixing are stirred, are obtained dry-mixed Slurry；4) secondary agitation of filling slurry：Dry-mixed slurry and water in secondary mixer are mixed, obtain filling slurry；5) it fills：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.
- 2. a kind of metal mine consolidated fill method of environmentally friendly cementitious material according to claim 1, it is characterised in that：Step It is rapid 1) in, the width of barricade>50cm.
- 3. a kind of metal mine consolidated fill method of environmentally friendly cementitious material according to claim 1, it is characterised in that：Step It is rapid 1) in, the cement that thickness is 4cm~6cm is smeared outside barricade.
- 4. a kind of metal mine consolidated fill method of environmentally friendly cementitious material according to claim 1, it is characterised in that：Step It is rapid 1) in, a diameter of 4cm~6cm of drainage gas port.
- 5. a kind of metal mine consolidated fill method of environmentally friendly cementitious material according to claim 1, it is characterised in that：Step It is rapid 2) in, environmentally friendly cementitious material is made of the raw material of following mass parts：15~20 parts of cement, 75~85 parts of miberal powders, 70~80 parts Flyash, 10~15 parts of gypsum, 8~15 parts of lime, 3~7 parts of sodium carbonate, 1~3 part of water-reducing agent.
- 6. a kind of metal mine consolidated fill method of environmentally friendly cementitious material according to claim 5, it is characterised in that：Step It is rapid 2) in, cement be 32.5 class g cements, miberal powder be S95 grade ground granulated blast furnace slags, flyash be I grade or II grade of F class flyash.
- 7. a kind of metal mine consolidated fill method of environmentally friendly cementitious material according to claim 5, it is characterised in that：Step It is rapid 2) in, water-reducing agent for lignin sulfonate water-reducing agent, naphthalene water reducer, melamine system water reducer, sulfamate system At least one of water-reducing agent, fatty acid series water-reducing agent, poly carboxylic acid series water reducer.
- 8. a kind of metal mine consolidated fill method of environmentally friendly cementitious material according to claim 1, it is characterised in that：Step It is rapid 3) in, the mass ratio of classified tailings and environmentally friendly cementitious material is (28~32)：10.
- 9. a kind of metal mine consolidated fill method of environmentally friendly cementitious material according to claim 1, it is characterised in that：Step It is rapid 4) in, the water content of filling slurry is 25wt%~35wt%.
- 10. a kind of metal mine consolidated fill method of environmentally friendly cementitious material according to claim 1, it is characterised in that： In step 5), the outlet of filling pipeline is placed in the highest point of mining excavation.
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| CN201711368603.7A CN108167017B (en) | 2017-12-18 | 2017-12-18 | Metal mine cemented filling method of environment-friendly cementing material |
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| CN201711368603.7A CN108167017B (en) | 2017-12-18 | 2017-12-18 | Metal mine cemented filling method of environment-friendly cementing material |
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| CN108167017B CN108167017B (en) | 2020-05-19 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109626931A (en) * | 2019-01-08 | 2019-04-16 | 中冶南方都市环保工程技术股份有限公司 | Tailing cementing agent and preparation method thereof, application method and application |
| CN112479617A (en) * | 2020-12-18 | 2021-03-12 | 安徽科博建材科技有限公司 | Additive for high-sulfur tailing filling cementing material and production process thereof |
| CN114294051A (en) * | 2021-12-29 | 2022-04-08 | 临沂会宝岭铁矿有限公司 | Mine goaf cemented filling method |
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| CN103046955A (en) * | 2012-12-24 | 2013-04-17 | 河北钢铁集团矿业有限公司 | Large-range goaf group filling method |
| CN204738840U (en) * | 2015-04-01 | 2015-11-04 | 巴彦淖尔西部铜业有限公司 | Thick liquid device is made to underground mine consolidated fill |
| CN107382112A (en) * | 2017-07-05 | 2017-11-24 | 固岩科技发展有限公司 | A kind of composite gelled material |
-
2017
- 2017-12-18 CN CN201711368603.7A patent/CN108167017B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN114294051B (en) * | 2021-12-29 | 2023-08-18 | 临沂会宝岭铁矿有限公司 | Mine goaf cemented filling method |
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