CN107082604A - A kind of coarse aggregate phosphorus ore cemented filling material defeated applied to big times of spool - Google Patents
A kind of coarse aggregate phosphorus ore cemented filling material defeated applied to big times of spool Download PDFInfo
- Publication number
- CN107082604A CN107082604A CN201710280115.4A CN201710280115A CN107082604A CN 107082604 A CN107082604 A CN 107082604A CN 201710280115 A CN201710280115 A CN 201710280115A CN 107082604 A CN107082604 A CN 107082604A
- Authority
- CN
- China
- Prior art keywords
- filling material
- cemented filling
- phosphorus ore
- coarse aggregate
- phosphorus
- 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.)
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Classifications
-
- 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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00146—Sprayable or pumpable mixtures
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
A kind of coarse aggregate phosphorus ore cemented filling material defeated applied to big times of spool, including aggregate, cement, flyash, water reducer and water；Aggregate:Cement:Flyash:Water reducer:The quality of water is (60~76) % than content:(2.5~8.6) %:(4.8~13) %:(0~0.26) %：(14%~25%).The invention has the advantages that：(1) it can be provided safeguard for the general safety of deposit mining：Controllably pressure activity, alleviates rock burst and threatens；Strata movement can be effectively prevented, realizes and is dug up mine under water body；(2) underground mineral resources can fill recycling：The method of mining by the way of filling can realize that low poor damage is exploited, improves comprehensive resource utilization rate function and " Cai Fubao is poor " distant view protection of resources function, so as to reclaim underground ore resource to greatest extent.(3) mine service-life is extended：The raising of ore recovery ratio, extends mine life, so as to improve total economic benefit of overall deposit mining.
Description
Technical field
The invention belongs to cemented filling mining field, and in particular to a kind of coarse aggregate phosphorus ore glue defeated applied to big times of spool
Tie filler.
Background technology
Phosphorus mine tailing is that mid-low grade collophanite ore produces big particle diameter mine tailing after heavymedia separation, and 4.75~19.0mm contents are about
Account for its 88%.The thick phosphorus mine tailing of enormous amount stacks earth's surface and not only endangers environment for a long time, also results in the wave of soil and phosphate rock resource
Take.Filled using phosphorus mine tailing and not only consume a large amount of mine tailings, also improve the security of mining activity, therefore widely should
With.But encounter two hang-ups in In Yichang Area, Hubei Province phosphorus ore phosphorus mine tailing consolidated fill recovery process now：First, filling slurry
Average pumping distance about 2.5~7.0km, stowing gradient is more than 8, it is desirable to which slurry has good mobility and stability；Second, filling
Fill out body intensity requirement high, 1.5~7.0MPa need to be reached.To make the extensive use in Hubei phosphate ore of phosphorus mine tailing cemented-method, need
Cemented filling material using phosphorus mine tailing as aggregate is studied.
Played a key effect in cemented filling material in cemented filling mining technology, it is at present, wide variety of cementing to fill
Filling chock material has cement, flyash, mine tailing, fine sand, blast furnace slag, barren rock, red mud etc., and the material applied in phosphorus ore consolidated fill
Predominantly cement, flyash, phosphorus slag, ardealite, blast furnace slag etc., but the mine tailing produced using heavymedia separation as filler still
It is rare.Phosphorus ore heavymedia separation mainly uses the density contrast existed between phosphorite and gangue and realizes what phosphorus concentrate was reclaimed
A kind of ore-dressing technique, has that cost is low, technique simple and environmental protection compared with the beneficiation methods such as floatation, chemical method, magnetoelectricity method
The features such as, and in order to improve the phosphorus concentrate rate of recovery, typically control original ore size in 0.5~15mm, therefore the grain of gained mine tailing
Degree is also larger, and big times of spool road pumping can not be directly applied to by being directly prepared into cemented filling material.
The content of the invention
It is an object of the invention to provide a kind of coarse aggregate phosphorus ore cemented filling material defeated applied to big times of spool, make its material
The mobility of slurry and the requirement for stablizing 2.5~7.0km of sexual satisfaction long distance delivery, make its compression strength 1.5~7.0MPa it
Between, so as to solve the above problems.
A kind of coarse aggregate phosphorus ore cemented filling material defeated applied to big times of spool, its raw material include aggregate, cement, powder
Coal ash, water reducer and water；Aggregate:Cement:Flyash:Water reducer:The quality of water is (60~76) % than content:(2.5~
8.6) %:(4.8~13) %:(0~0.26) %：(14%~25%).
The aggregate includes coarse aggregate and fine aggregate, and coarse aggregate is second-time breakage phosphorus mine tailing.
The phosphorus mine tailing is that mid-low grade collophanite ore produces big particle diameter mine tailing, 4.75~19.00mm after heavymedia separation
Content account for its 88%.
The second-time breakage phosphorus mine tailing be by above-mentioned phosphorus mine tailing by impact type it is broken by its particle diameter be crushed to 5.0mm with
Under, it is broken after below 0.30mm contents account for less than 15%, less than 20 μm contents at least account for less than 5%, grading index 0.45~
Between 0.60.
The fine aggregate is any one or a few following mixture：20 μm of gravity treatment tail mud, flotation tailing, ardealite etc.
Fine powder of the following ultra-fine grain content more than 50% gathers materials.
The addition of the fine aggregate is not fixed, depending on less than 20 μm ultra-fine grains in second-time breakage phosphorus mine tailing and flyash
Depending on cumulative level, it is ensured that the cumulative level of less than 20 μm ultra-fine grains is 15%~18% in the filler siccative.
The cement can be any one in the composite Portland cement of 325 or 425 Portland cements, 325 or 425.
The flyash is the fine ash that catching is got off from the flue gas after coal combustion, and its active component is mainly vitreum
SiO2 and Al2O3.Quality of fly ash is in III grade and the above.
The water reducer is in naphthalene system solid powder or liquid water reducer, polycarboxylic acids solid powder or liquid water reducer
It is arbitrary a kind of.
Mining and heavymedia separation generation that phosphorus ore cemented filling material can be consumed all are prepared by the proportioning in the present invention
Phosphorus mine tailing and tail mud, it is to avoid phosphorus mine tailing with tail mud stacks the land expropriation cost brought.
Flyash has filling effect, shape effect and volcano ash effect in cemented filling material.Filling effect can be with
Improve grading of aggregates level, contribute to the raising of filler intensity.Shape effect can reduce filling slurry mobility to water
Dependence, and then also improve the stability of slurry, be conducive to long-distance pumping.Volcano ash effect makes flyash turn into auxiliary glue
Gel material, can partly substitute cement, reduce the cost of raw material.
Tail mud equally has filling effect and shape effect, can partly substitute flyash.Simultaneously in cemented filling material
The safety and environmental protection that middle addition tail mud can solve the problems, such as its outer arranges and bring.
Prepare phosphorus ore cemented filling material by the proportioning in the present invention, its 28 days uniaxial compressive strength intensity 1.0~
Between 13.0Mpa, goal of the invention is met.
Phosphorus ore cemented filling material is prepared by the proportioning in the present invention, the slump of its slurry is in 22~29cm, and denseness is big
In 8.0cm, it flows the big times of spool road pumping consolidated fill requirement of sexual satisfaction phosphorus ore.
Phosphorus ore cemented filling material is prepared by the proportioning in the present invention, the delamination degree of its slurry is in 0~2.0cm, and standing is secreted
Water rate is less than 3%, its stable big times of spool road pumping consolidated fill requirement of sexual satisfaction phosphorus ore.
The phosphorus ore cemented filling material of the present invention has the advantage that with when preparation method：
(1) it can be provided safeguard for the general safety of deposit mining, controllably pressure activity is alleviated rock burst and threatened；Can be with
Effectively prevent strata movement, protection earth's surface building and local environment；
(2) mineral resources can be recycled under, and the method for mining by the way of filling can realize that low poor damage is exploited, improves comprehensive utilization of resources
Rate function and " Cai Fubao is poor " distant view protection of resources function, so as to reclaim underground ore resource to greatest extent.With Caving Method with Large Space phase
Than the method for mining by the way of filling can reduce ore losses and dilution more than 10~15%, compared with open-stope method, and the method for mining by the way of filling can reduce ore deposit
Stone loss 20~30%；
(3) mine service-life is extended, the raising of ore recovery ratio extends mine life, so as to improve overall ore deposit
Total economic benefit of bed exploitation；
(4) conservation of nature environment, realizes Green Coal Mining Areas construction, reduces the ground Pai Dui for even avoiding mine tailing, it is to avoid
Mining area air and water pollution, lift mining area ecological environment, while saving a large amount of Tailings Dam maintenance costs；
(5) country, the policy of the raising comprehensive resource utilization rate of industry have been responded, has been issued according to the State Tax Administration of the Ministry of Finance
(2016) No. 53 files of property tax of cloth, the mineral resources produced to qualified use filling mining mode, resources tax is allowed to reduce
50%；
(6) workers and peasants' contradiction is reduced, it is to avoid because earth's surface builds Tailings Dam, workers and peasants contradiction caused by accumulation mine tailing welding
Safeguard and invest with a large amount of Tailings Dams；
(7) safe and environment-friendly, lasting exploit is preserved the ecological environment, and is conducive to building harmonious mining area.
Embodiment
Embodiment 1：
It is a kind of applied to the defeated coarse aggregate phosphorus ore cemented filling material of big times of spool, raw material be second-time breakage phosphorus mine tailing,
Tail mud, cement, flyash and water reducer, wherein, second-time breakage phosphorus mine tailing is the thin mine tailing of -5mm impact cuttings, and tail mud is phosphorus ore in weight
The shale mineral grain for below the particle diameter 1mm that washup is produced, this 20 μm of less-than cumulation of tail mud used during media separation
Content is fine particle between 70%~75%.Cement is Three Gorges board Portland cement (P.O.42.5), and flyash is
III grade of flyash that certain chemical plant is provided, water reducer is the powdered water reducer of naphthalene system.
Test mix proportion scheme as follows：Benchmark proportioning is cement:Flyash:Tail mud:Mine tailing:Pumping=100kgm-3:
200kg·m-3:100kg·m-3:1500kg·m-3:1kg·m-3, on this basis, the every square 20kg of increase respectively of cement amount,
30kg, 40kg and 50kg, pulp density are 82%, and specimen coding is 1~4.Slurry mobility, stability and obturation resistance to compression
Strength test results are as shown in table 1.
Table 1
Embodiment 2：
It is a kind of applied to the defeated coarse aggregate phosphorus ore cemented filling material of big times of spool, raw material be second-time breakage phosphorus mine tailing,
Flotation tailing, cement, flyash and water reducer, wherein, coarse aggregate is second-time breakage phosphorus mine tailing, and fine aggregate is flotation tailing.Two
Secondary broken phosphorus mine tailing is the thin mine tailing of -3m impact cuttings, and cement is Three Gorges board Portland cement (P.O.42.5), and flotation tailing is
Yichang ore dressing plant is carried out using floatation process to tcrude ore below the tailings of ore dressing generation, this 20 μm of flotation tailing used
Cumulative level is about 92%.Flyash is III grade of flyash that Yichang chemical plant boiler is produced, and water reducer is that naphthalene system liquid subtracts
Aqua.Mix proportion scheme is shown in Table 2.The test result of properties is shown in Table 3.
Table 2
Note：" cement mortar rate " is the mass ratio of (concrete and coal ash) and aggregate." cement：Flyash " is cement and fine coal
The mass ratio of ash." second-time breakage phosphorus mine tailing：Flotation tailing " be whole second-time breakage phosphorus mine tailings and flotation tailing quality it
Than.
Table 3
Embodiment 3：
It is a kind of applied to the defeated coarse aggregate phosphorus ore cemented filling material of big times of spool, raw material be second-time breakage phosphorus mine tailing,
Ardealite, cement, flyash and water reducer, wherein, coarse aggregate is second-time breakage phosphorus mine tailing, and fine aggregate is flotation tailing.It is secondary
Broken phosphorus mine tailing is the thin mine tailing of -3m impact cuttings, and cement is Three Gorges board Portland cement (P.O.42.5), and ardealite is Yichang
The byproduct that certain chemical company production phosphoric acid is produced, this 20 μm of less-than cumulation content of ardealite used is about 76%.Fine coal
III grade of flyash that ash produces for Yichang chemical plant boiler, water reducer is polycarboxylic acids solid state powder water reducer.Mix proportion scheme is shown in
Table 4.The test result of properties is shown in Table 5.
Table 4
Note：" cement mortar rate " is the mass ratio of (concrete and coal ash) and aggregate." cement：Flyash " is cement and fine coal
The mass ratio of ash." second-time breakage phosphorus mine tailing：Ardealite " is the mass ratio of whole second-time breakage phosphorus mine tailings and flotation tailing.
Table 5
Claims (10)
1. a kind of coarse aggregate phosphorus ore cemented filling material defeated applied to big times of spool, it is characterised in that：Including aggregate, cement,
Flyash, water reducer and water；Aggregate:Cement:Flyash:Water reducer:The quality of water is (60~76) % than content:(2.5~
8.6) %:(4.8~13) %:(0~0.26) %：(14%~25%).
2. a kind of coarse aggregate phosphorus ore cemented filling material defeated applied to big times of spool according to claim 1, its feature
It is：The aggregate includes coarse aggregate and fine aggregate, and coarse aggregate is second-time breakage phosphorus mine tailing.
3. a kind of coarse aggregate phosphorus ore cemented filling material defeated applied to big times of spool according to claim 2, its feature
It is：Phosphorus mine tailing is that mid-low grade collophanite ore produces big particle diameter mine tailing after heavymedia separation, and 4.75~19.00mm contents account for it
88%；The second-time breakage phosphorus mine tailing is to crush above-mentioned phosphorus mine tailing by impact type its particle diameter is crushed into below 5.0mm, is broken
Broken rear below 0.30mm contents account for less than 15%, and less than 20 μm contents at least account for less than 5%, grading index 0.45~0.60 it
Between.
4. a kind of coarse aggregate phosphorus ore cemented filling material defeated applied to big times of spool according to claim 2, its feature
It is：The fine aggregate is any one or a few following mixture：Gravity treatment tail mud, flotation tailing, below 20 μm of ardealite
Fine powder of the ultra-fine grain content more than 50% gathers materials.
5. a kind of coarse aggregate phosphorus ore cemented filling material defeated applied to big times of spool according to claim 4, its feature
It is：The addition of the fine aggregate regard the cumulative level of less than 20 μm ultra-fine grains in second-time breakage phosphorus mine tailing and flyash and
It is fixed, it is ensured that the cumulative level of less than 20 μm ultra-fine grains is 15%~18% in the filler siccative.
6. a kind of coarse aggregate phosphorus ore cemented filling material defeated applied to big times of spool according to claim 1, its feature
It is：The cement can be 325 or 425 Portland cements, or 325 or 425 composite Portland cements.
7. a kind of coarse aggregate phosphorus ore cemented filling material defeated applied to big times of spool according to claim 1, its feature
It is：The flyash is the fine ash that catching is got off from the flue gas after coal combustion, and its active component is mainly vitreum
SiO2 and Al2O3.
8. a kind of coarse aggregate phosphorus ore cemented filling material defeated applied to big times of spool according to claim 1, its feature
It is：The water reducer is in naphthalene system solid powder or liquid water reducer, polycarboxylic acids solid powder or liquid water reducer
It is a kind of.
9. a kind of coarse aggregate phosphorus ore cemented filling material defeated applied to big times of spool according to claim 1, its feature
It is：Flyash has filling effect, shape effect and volcano ash effect in cemented filling material；Filling effect can improve
Grading of aggregates level, contributes to the raising of filler intensity；Shape effect can reduce filling slurry mobility to water according to
Rely, and then also improve the stability of slurry, be conducive to long-distance pumping；Volcano ash effect makes flyash turn into auxiliary gelling material
Material, can partly substitute cement, reduce the cost of raw material.
10. a kind of coarse aggregate phosphorus ore cemented filling material defeated applied to big times of spool according to claim 1, its feature
It is：Prepare phosphorus ore cemented filling material by the proportioning in the present invention, its 28 days uniaxial compressive strength intensity 1.0~
Between 13.0Mpa；
Phosphorus ore cemented filling material is prepared by the proportioning in the present invention, the slump of its slurry is in 22~29cm, and denseness is more than
8.0cm, it flows the big times of spool road pumping consolidated fill requirement of sexual satisfaction phosphorus ore；
Phosphorus ore cemented filling material is prepared by the proportioning in the present invention, the delamination degree of its slurry stands bleeding rate in 0~2.0cm
Less than 3%, its stable big times of spool road pumping consolidated fill requirement of sexual satisfaction phosphorus ore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710280115.4A CN107082604A (en) | 2017-04-26 | 2017-04-26 | A kind of coarse aggregate phosphorus ore cemented filling material defeated applied to big times of spool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710280115.4A CN107082604A (en) | 2017-04-26 | 2017-04-26 | A kind of coarse aggregate phosphorus ore cemented filling material defeated applied to big times of spool |
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| CN107082604A true CN107082604A (en) | 2017-08-22 |
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| CN201710280115.4A Pending CN107082604A (en) | 2017-04-26 | 2017-04-26 | A kind of coarse aggregate phosphorus ore cemented filling material defeated applied to big times of spool |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107500686A (en) * | 2017-10-13 | 2017-12-22 | 中南大学 | A kind of filler containing rice-straw fibre and its application in mining with stowing |
| CN107640940A (en) * | 2017-10-13 | 2018-01-30 | 中南大学 | A kind of filler containing polypropylene fibre and its application in mining with stowing |
| CN115611584A (en) * | 2022-10-27 | 2023-01-17 | 湖北绿洲源环保科技有限公司 | Superfine iron tailing slurry-based goaf filling material and preparation method thereof |
-
2017
- 2017-04-26 CN CN201710280115.4A patent/CN107082604A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 李延杰等: "高浓度粗磷尾矿胶结充填参数优化研究", 《矿业研究与开发》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107500686A (en) * | 2017-10-13 | 2017-12-22 | 中南大学 | A kind of filler containing rice-straw fibre and its application in mining with stowing |
| CN107640940A (en) * | 2017-10-13 | 2018-01-30 | 中南大学 | A kind of filler containing polypropylene fibre and its application in mining with stowing |
| CN115611584A (en) * | 2022-10-27 | 2023-01-17 | 湖北绿洲源环保科技有限公司 | Superfine iron tailing slurry-based goaf filling material and preparation method thereof |
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Application publication date: 20170822 |