CN107500686A - A kind of filler containing rice-straw fibre and its application in mining with stowing - Google Patents
A kind of filler containing rice-straw fibre and its application in mining with stowing Download PDFInfo
- Publication number
- CN107500686A CN107500686A CN201710956681.2A CN201710956681A CN107500686A CN 107500686 A CN107500686 A CN 107500686A CN 201710956681 A CN201710956681 A CN 201710956681A CN 107500686 A CN107500686 A CN 107500686A
- Authority
- CN
- China
- Prior art keywords
- parts
- rice
- filler
- straw fibre
- application
- 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.)
- Granted
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 96
- 239000010902 straw Substances 0.000 title claims abstract description 86
- 239000000945 filler Substances 0.000 title claims abstract description 68
- 238000005065 mining Methods 0.000 title claims abstract description 24
- 238000011049 filling Methods 0.000 claims abstract description 51
- 239000004568 cement Substances 0.000 claims abstract description 44
- 238000003801 milling Methods 0.000 claims abstract description 34
- 239000004576 sand Substances 0.000 claims abstract description 34
- 239000002002 slurry Substances 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000009826 distribution Methods 0.000 claims description 6
- 230000008595 infiltration Effects 0.000 claims description 6
- 238000001764 infiltration Methods 0.000 claims description 6
- 229910020218 Pb—Zn Inorganic materials 0.000 claims description 5
- 239000011435 rock Substances 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims 1
- 239000011701 zinc Substances 0.000 claims 1
- 229910052725 zinc Inorganic materials 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 11
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000010348 incorporation Methods 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 37
- 230000006835 compression Effects 0.000 description 29
- 238000007906 compression Methods 0.000 description 29
- 238000010008 shearing Methods 0.000 description 26
- 238000012360 testing method Methods 0.000 description 21
- 238000005259 measurement Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 235000013339 cereals Nutrition 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 239000004567 concrete Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 3
- YLZOPXRUQYQQID-UHFFFAOYSA-N 3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-1-[4-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]piperazin-1-yl]propan-1-one Chemical compound N1N=NC=2CN(CCC=21)CCC(=O)N1CCN(CC1)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F YLZOPXRUQYQQID-UHFFFAOYSA-N 0.000 description 3
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 239000002657 fibrous material Substances 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 208000036366 Sensation of pressure Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- JHLNERQLKQQLRZ-UHFFFAOYSA-N calcium silicate Chemical compound [Ca+2].[Ca+2].[O-][Si]([O-])([O-])[O-] JHLNERQLKQQLRZ-UHFFFAOYSA-N 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- 235000012241 calcium silicate Nutrition 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
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
-
- 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
-
- 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
- C04B2111/00017—Aspects relating to the protection of the environment
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention belongs to filling in mine field of material technology, discloses a kind of application of filler containing rice-straw fibre in mining with stowing, and present invention also offers a kind of filler, including rice-straw fibre, cement, classification mine tailing and rod milling sand.The present invention also provides a kind of filling slurry, 0.5~1.5 part of rice-straw fibre, 259~326 parts of cement, 1150~1350 parts of mine tailing of classification, 0~135 part of rod milling sand, 464~560 parts of water, 0.5~5cm of fibre length, filling slurry mass concentration 73~77% after mixing.The incorporation of rice-straw fibre can be effectively improved that obturation cured strength is low in rice-straw fibre filler disclosed by the invention, problem easy to crack, improve compressive property, the break resistance of obturation, be the innovation of a filling in mine material.
Description
Technical field
The present invention relates to filling in mine field of material technology, and in particular to a kind of filler containing rice-straw fibre and its
Application in mining with stowing.
Background technology
As mineral resources are increasingly exhausted, safety that resources development and utilization constantly triggers, environmental problem, the method for mining by the way of filling by
Step turns into the main trend of mining development.After stope filling, the surrounding rock supporting of obturation and the pressure effect of control ground, to filler
Research and innovation propose higher requirement.
In addition, increasing bargh introduces the large-scale trackless equipments such as scraper, drill jumbo, stope life is being improved
While production capacity power and operating efficiency, performance to workbench obturation is it is also proposed that higher requirement.Bargh is satisfaction
Trackless equipment use condition, it has to the resistance to compression of obturation, tension and shearing strength are improved to increase cement consumption, but not
It is evitable to add filling cost, and the Resisting fractre ability raising effect to obturation is general.
As a large agricultural country, China possesses abundant rice straw resource, but the utilization rate of these resources and profit
Very limited with effect, in addition to being used for feed and papermaking etc. on a small quantity, substantial amounts of straw and stalk resource are by the spot
Burn, while the wasting of resources is caused, also inevitably cause the pollution of environment.
A kind of to solve the above problems, fine tailings disclosed in the Chinese patent document of Application No. 201310035710.3
The binder materials of filling, the binder materials is by belite sulphoaluminate cement, gypsum, quick lime, slag differential, flyash
Deng composition, it is possible to increase the filling intensity of fine tailings, but obturation tensile property and cement consumption reduction problem are not made a search.
Fibrous material is a kind of flexible macromolecule synthetic material, and stability is good, has a variety of excellent properties such as crack resistance, corrosion resistance,
It is used for the cracking resistance for strengthening concrete under construction.Chinese patent document such as Application No. 201310702345.7 discloses
A kind of anti-crack concrete, the anti-crack concrete effectively inhibited because the reasons such as temperature, drying shrinkage are made using fibrous material as additive
Into concrete cracking phenomenon, but in terms of filling in mine, there has been no be used to fibrous material improve obturation mechanical property
Precedent.
The content of the invention
The technical problems to be solved by the invention are low for compression strength existing for mine filler, and cracking resistance is poor,
The problem of cement unit consumption is high, and Mine Tailings Utilization is low, the invention provides a kind of filler containing rice-straw fibre in mining with stowing
Application.By described filler, obturation compression strength, tensile property and shearing strength can be improved, reduces cement list
Consumption, cost is reduced, improve Mine Tailings Utilization.
In order to solve the above technical problems, technical scheme provided by the invention is as follows：
A kind of application of the filler containing rice-straw fibre, it is characterised in that be applied to mining with stowing as filler
In, described filler includes cement and classification mine tailing.
In the technical field of the method for mining by the way of filling, it is fine that the present inventor originally adds straw in mining filler
Dimension, can obtain the fiber filling material especially suitable for mining with stowing field.Research shows that described rice-straw fibre additive removes
It can strengthen outside filler for mine body compression strength, tensile property and shearing strength, can also reduce cement unit consumption, save filling water
Mud cost.
Research shows, the selection of suitable rice-straw fibre, can further lift described filler and fill neck in mining area
The application effect in domain.
Preferably, described rice-straw fibre is to rub thread monofilament rice-straw fibre；Fibre single thread length：0.5~5cm.
Further preferably, fibre single thread length is 1~3cm.Under the preferable fibre length, obtained obturation it is each
Item excellent performance, and help further to reduce cement unit consumption, ensure the good mobility of filling slurry；It is easy to construction to transport.
Preferably, the cement in the filler is PO 42.5R Portland cements.
Preferably, what the classification mine tailing in the filler obtained for Pb-Zn deposits beneficiation tailing after being classified, filtering
Mine tailing.Further preferably, the grain density of described classification mine tailing is 3.18g/cm3, infiltration coefficient 8.70E-04cm/s, granularity
It is distributed as d10=3.422 μm, d50=35.42 μm, d90=124.9 μm, dmean=50.59 μm, nonuniformity coefficient Cu=14.01.
Classification mine tailing and described fiber, the synergy of cement under the size distribution is more excellent, and the performance of obtained obturator is more
It is good.
In the present invention, the weight ratio of each component of described filler is regulated and controled, contributes to further lifting to fill
The engineering effort of filling chock material.
As preferred：In described filler, the parts by weight of rice-straw fibre are 0.5~1.5 part, the parts by weight of cement are
259~326 parts, be classified mine tailing parts by weight be 1150~1350 parts.
Preferably, rod milling sand is also included in described filler.Research is found, in described filler, is entered
One step adds rod milling sand, can be cooperateed with compositions such as rice-straw fibres, compression strength, the tension for further lifting obtained obturation are strong
The performances such as degree, shearing strength.
Preferably, coarse aggregate of the rod milling sand for Pb-Zn deposits barren rock after levigate in the filler.It is further excellent
Choosing, the grain density of described rod milling sand is 2.80g/cm3, infiltration coefficient 3.80E-03cm/s, size distribution d10=40.24
μm, d50=131.8 μm, d90=371.1 μm, dmean=173.0 μm, nonuniformity coefficient Cu=3.98.
Preferably, in described filler, the parts by weight of rod milling sand are less than or equal to 135 parts.In the ratio range
Under, the performance of obtained filler is more excellent.
Preferably, in described filler, the parts by weight of rice-straw fibre are 1 part, the parts by weight of cement are 265 part, points
The parts by weight of level mine tailing are 1189 parts, the parts by weight of rod milling sand are 132 parts.
In the present invention：In the application process of described filler, mixed again with water after each component of filler is mixed
Close, be configured to the filling slurry that mass concentration is 73~77%；
Preferably, the mass concentration of filling slurry is 75%.
In described filling slurry, described mass concentration refers in slurry, solid portion (rice-straw fibre, cement and mine tailing
Gross weight) mass percent that accounts in described slurry.
It is 259~326 by rice-straw fibre that parts by weight are 0.5~1.5 part, parts by weight in actual application of the present invention
Part cement, the classification mine tailing that parts by weight are 1150~1350 parts and rod milling sand that parts by weight are 0~135 part, parts by weight 464
~560 parts of water mixing, obtains described filling slurry, is then fills up to again by existing usual manner in mining area.
As preferred：The filling slurry density is 2105~2144kg/m3。
As preferred：By described filling slurry using mine drop pipeline pump or self-flowing pastefill by way of carry out
Mining area filling construction.
The described filler containing rice-straw fibre provided by the invention, include each component of following mass fraction：Straw
0.5~1.5 part of fiber, 259~326 parts of cement, 1150~1350 parts of mine tailing of classification, rod milling sand are less than or equal to 135 parts.
Preferable filler, the parts by weight of rice-straw fibre are 1 part, the parts by weight of cement are 265 parts, are classified the weight of mine tailing
Amount part is 1189 parts, the parts by weight of rod milling sand are 132 parts.
Preferable filler, the rice-straw fibre are to rub thread monofilament rice-straw fibre, its fibre single thread length 0.5~
5cm；More preferably 1~3cm.
Preferable filler, the classification mine tailing are the mine tailing that Pb-Zn deposits beneficiation tailing obtains after being classified, filtering, its
Grain density is 3.18g/cm3, infiltration coefficient 8.70E-04cm/s, size distribution d10=3.422 μm, d50=35.42 μm,
d90=124.9 μm, dmean=50.59 μm, nonuniformity coefficient Cu=14.01.
Preferable filler, coarse aggregate of the rod milling sand for Pb-Zn deposits barren rock after levigate, its grain density are
2.80g/cm3, infiltration coefficient 3.80E-03cm/s, size distribution d10=40.24 μm, d50=131.8 μm, d90=371.1 μ
M, dmean=173.0 μm, nonuniformity coefficient Cu=3.98.
Present invention also offers a kind of filling slurry for mining with stowing, is obtained after being mixed by described filler and water
Arrive.
The described filling slurry for mining with stowing, the parts by weight of each composition are：0.5~1.5 part of rice-straw fibre, cement
259~326 parts, classification 1150~1350 parts of mine tailing, 0~135 part of rod milling sand, 464~560 parts of water.Further preferably, straw is fine
1 part of dimension, 265 parts of cement, 1189 parts of mine tailing of classification, 132 parts of rod milling sand, 509 parts of water.
Preferable filling slurry, filling are ordinary tap water with water.
Preferable filling slurry, the described filling slurry for mining with stowing, mass concentration are 73~77%.
Preferable filling slurry, density 2114kg/m3, mass concentration 75%.
Present invention also offers a kind of preparation method of the filling slurry for mining with stowing, comprise the following steps：
Step a, by rice-straw fibre, the cement that parts by weight are 259~326 parts, parts by weight that parts by weight are 0.5~1.5 part
For 1150~1350 parts of classification mine tailing, parts by weight compound is mixed to obtain for the rod milling sand less than or equal to 135 parts；
Step b, the water that parts by weight are 464~560 parts is added in the compound obtained in step a, is stirred, through inspection
Survey it is qualified after obtain filling slurry；
Step c, the filling slurry obtained in step b is entered using mine drop by way of pipeline pumping or self-flowing pastefill
The filling construction of row mining area.
A kind of preparation method being more highly preferred to of the present invention, comprises the following steps：
Step a, by 132 parts of 1 part of rice-straw fibre, 265 parts of cement, 1189 parts of mine tailing of classification, rod milling sand addition batch mixers
It is well mixed；
Step b, 509 parts of water is added in the compound obtained in step a, stirs in mixer, closes after testing
Rice-straw fibre filler is obtained after lattice；
Step c, the rice-straw fibre filler that will be obtained in step b, pumped using mine drop by pipeline during use
Or the mode of self-flowing pastefill carries out filling construction.
The incorporation of rice-straw fibre can be effectively improved after obturation solidification by force in rice-straw fibre filler disclosed by the invention
Low, easy to crack problem is spent, improves compressive property, the break resistance of obturation.It can improved using the fiber filling material
While the resistance to compression of obturation, tensile strength, the shearing strength of obturation is improved, meets surrounding rock supporting, Earth pres-sure control and large-scale
Mining drill jumbo, scraper machine equipment service requirement.Every cubic metre of backfilling cement unit consumption is reduced, Mine Tailings Utilization is improved, is one
Secondary filling in mine material innovation, has extensive significance of application and promotional value.
Beneficial effect
For the present invention using rice-straw fibre as additive, cement is cementing agent, and it is filling aggregate to be classified mine tailing and rod milling sand, adds water
Be mixed evenly be made the cementing high-strength filler of rice-straw fibre carry out the high intensity such as the Mine Stope first floor, glue surface and false lane will
Region is asked to fill.The addition of pencil monofilament rice-straw fibre is internally formed the network structure of densification in obturation so that obturation is solid
Class reinforced concrete structure is formed after change, obturation overall performance is strengthened, and obturation mechanical property is significantly improved.Through
Experiment, rice-straw fibre add 1 part, when length is 1~3cm by mass fraction, under conditions of filling conveying is met, consider
Material and cost of manufacture, obturation resistance to compression, tension, shear behavior, precipitation mud unit consumption enhancing effect are good.
After addition rice-straw fibre, the resistance to compression of obturation, tension, anti-is not only effectively enhanced
Performance is cut, and effectively reduces backfilling cement unit consumption, improves Mine Tailings Utilization, filling cost is reduced, partly solves
Mine tailing builds storehouse emission problem, is advantageous to environmental protection.
In summary, the present invention can effectively improve obturation overall performance, be a filling in mine material technology innovation,
With extensive significance of application and promotional value.
Embodiment
With reference to specific embodiment to a kind of filler containing rice-straw fibre provided by the invention in mining with stowing
The technical scheme of application is described in further detail.But the invention is not limited in following examples.
Application of the filler containing rice-straw fibre of the present invention in mining with stowing is by rice-straw fibre, cement, classification tail
Ore deposit, rod milling sand and water mix according to certain quality proportioning.Its preparation method is first by rice-straw fibre, cement, classification
Mine tailing and rod milling sand, which are added in batch mixer, to be well mixed；Then water is added in compound, and is stirred in mixer, is made
Filling slurry of the invention.The filling slurry of preparation is cast in With
Test block is made in 50mm × 50mm × 50mm cylinder and cube die trial, by test block in curing box according to constant temperature (20
DEG C), constant humidity (95%) maintenance to regulation age (3 days, 7 days and 28 days), determine its compression strength respectively and (useTest block made of mould), tensile strength (useTest block made of mould) and
Shearing strength (uses 50mm × 50mm × test block made of 50mm moulds).
Tests below such as non-specified otherwise, preparation, test block preparation and maintenance, the test of filler etc. is according to above-mentioned side
Method, condition are carried out.Do not add rice-straw fibre in comparative example 1,1-1,1-2,2,2-1,2-2, the control group as the present invention.
Comparative example 1
The present invention's is as follows without rice-straw fibre filler quality proportioning：
319 parts of cement, 1213 parts of mine tailing of classification, 64 parts of rod milling sand, 513 parts of water.
Resistance to compression, tension and shearing strength test are carried out to the comparative example, as a result referring to table 1.
The performance measurement result of 1 comparative example of table 1
Comparative example 1-1
The present invention's is as follows without rice-straw fibre filler quality proportioning：
313 parts of cement, 1252 parts of mine tailing of classification, 0 part of rod milling sand, 560 parts of water.
Resistance to compression, tension and shearing strength test are carried out to the comparative example, as a result referring to table 1-1.
Table 1-1 comparative example 1-1 performance measurement results
Comparative example 1-2
The present invention's is as follows without rice-straw fibre filler quality proportioning：
326 parts of cement, 1175 parts of mine tailing of classification, 131 parts of rod milling sand, 468 parts of water.
Resistance to compression, tension and shearing strength test are carried out to the comparative example, as a result referring to table 1-2.
Table 1-2 comparative example 1-2 performance measurement results
Analyze comparative example 1, comparative example 1-1 and comparative example 1-2 and understand that obturation compression strength, tensile strength and shearing resistance are strong
Degree increases and strengthened with Quality of filling body concentration.But when mass concentration reaches 77%, obturation mobile performance is poor.
Embodiment 1
The quality proportioning of filler containing rice-straw fibre of the present invention is as follows：
1 part of rice-straw fibre, 319 parts of cement, 1213 parts of mine tailing of classification, 64 parts of rod milling sand, 513 parts of water.
1~3cm of rice-straw fibre length.
Resistance to compression, tension and shearing strength test are carried out to the embodiment, as a result referring to table 2.
The performance measurement result of 2 embodiment of table 1
Comparative example 1 and the experimental result of comparative example 1 are understood, after adding described rice-straw fibre, help to lift resistance to compression
Intensity, tensile strength and shearing strength.
Comparative example 2
The present invention's is as follows without rice-straw fibre filler quality proportioning：
265 parts of cement, 1189 parts of mine tailing of classification, 132 parts of rod milling sand, 509 parts of water.
Resistance to compression, tension and shearing strength test are carried out to the comparative example, as a result referring to table 3.
The performance measurement result of 3 comparative example of table 2
Comparative example 2-1
The present invention's is as follows without rice-straw fibre filler quality proportioning：
259 parts of cement, 1230 parts of mine tailing of classification, 65 parts of rod milling sand, 556 parts of water.
Resistance to compression, tension and shearing strength test are carried out to the comparative example, as a result referring to table 3-1.
Table 3-1 comparative example 2-1 performance measurement results
Comparative example 2-2
The present invention's is as follows without rice-straw fibre filler quality proportioning：
270 parts of cement, 1350 parts of mine tailing of classification, 0 part of rod milling sand, 464 parts of water.
Resistance to compression, tension and shearing strength test are carried out to the comparative example, as a result referring to table 3-2.
Table 3-2 comparative example 2-2 performance measurement results
Analyze comparative example 2, comparative example 2-1 and comparative example 2-2 and understand that obturation compression strength, tensile strength and shearing resistance are strong
Degree increases and strengthened with Quality of filling body concentration.But when mass concentration reaches 77%, obturation mobile performance is poor.
Embodiment 2
The quality proportioning of filler containing rice-straw fibre of the present invention is as follows：
1 part of rice-straw fibre, 265 parts of cement, 1189 parts of mine tailing of classification, 132 parts of rod milling sand, 509 parts of water.
1~3cm of rice-straw fibre length.
Resistance to compression, tension and shearing strength test are carried out to the embodiment, as a result referring to table 4.
The performance measurement result of 4 embodiment of table 2
Comparative example 2 and comparative example 2 are understood, add described rice-straw fibre, contribute to lifting compression strength, tension strong
Degree and shearing strength.In addition, comparative example 1 and comparative example 2 it was found that, reduce the usage amount of cement, intensity declines obvious but logical
Cross comparative example 1 and embodiment 2 is found, on the premise of cement consumption is reduced, by the addition of described rice-straw fibre, it is every
Intensity is close to or the experimental result better than comparative example 1, experiment show, by adding rice-straw fibre, is reducing cement consumption,
Still obturation can be kept to disclosure satisfy that obturation mechanical property requirements in the case of improving tailings dosage.
Embodiment 3
The quality proportioning of filler containing rice-straw fibre of the present invention is as follows：
0.5 part of rice-straw fibre, 265 parts of cement, 1189 parts of mine tailing of classification, 132 parts of rod milling sand, 509 parts of water.
1~3cm of rice-straw fibre length.
Resistance to compression, tension and shearing strength test are carried out to the embodiment, as a result referring to table 5.
The performance measurement result of 5 embodiment of table 3
Comparative example 2 and embodiment 3 are understood, in the case where reducing fiber addition, the compression strength of obturation, are resisted
Tensile strength and shearing strength have reduction, and obturation mechanical property is deteriorated.
Embodiment 4
The quality proportioning of filler containing rice-straw fibre of the present invention is as follows：
1.5 parts of rice-straw fibre, 265 parts of cement, 1189 parts of mine tailing of classification, 132 parts of rod milling sand, 509 parts of water.
1~3cm of rice-straw fibre length.
Resistance to compression, tension and shearing strength test are carried out to the embodiment, as a result referring to table 6.
The performance measurement result of 6 embodiment of table 4
Comparative example 2 and embodiment 4 are understood, are increased fiber addition, can be improved obturation compression strength, tensile strength
And shearing strength.
Embodiment 5
The quality proportioning of filler containing rice-straw fibre of the present invention is as follows：
1 part of rice-straw fibre, 265 parts of cement, 1189 parts of mine tailing of classification, 132 parts of rod milling sand, 509 parts of water.
0.5~1cm of rice-straw fibre length.
Resistance to compression, tension and shearing strength test are carried out to the embodiment, as a result referring to table 7.
The performance measurement result of 7 embodiment of table 5
Comparative example 2 and embodiment 5 are understood, after adjustment rice-straw fibre length is 0.5~1cm, the contrast of its compression strength
Without significant change during 1~3cm of fibre length, but tensile strength and shearing strength reduce substantially, and illustrating, which increases fibre length, exists
Effect is obvious in terms of improving Resisting fractre.
Embodiment 6
The quality proportioning of filler containing rice-straw fibre of the present invention is as follows：
1 part of rice-straw fibre, 265 parts of cement, 1189 parts of mine tailing of classification, 132 parts of rod milling sand, 509 parts of water.
3~5cm of rice-straw fibre length.
Resistance to compression, tension and shearing strength test are carried out to the embodiment, as a result referring to table 8.
The performance measurement result of 8 embodiment of table 6
Comparative example 2 and embodiment 6 are understood, after adjustment rice-straw fibre length is 3~5cm, the contrast of its compression strength is fine
There is enhancing without significant change, tensile strength and shearing strength when tieing up 1~3cm of length, illustrating, which increases fibre length, is improving anti-break
It is obvious to split aspect effect.But fibre length is long to cause certain detrimental effect to filling mortar mobile performance, it is unfavorable for
Filling slurry conveys.
Explanation embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the technology of this area
For personnel, within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., it should be included in
Within protection scope of the present invention.
Claims (10)
- A kind of 1. application of the filler containing rice-straw fibre, it is characterised in that it is applied to as filler in mining with stowing, Described filler is also comprising cement and classification mine tailing.
- 2. the application of the filler containing rice-straw fibre as claimed in claim 1, it is characterised in that：Described rice-straw fibre is rubbed Thread monofilament rice-straw fibre, 0.5~5cm of fibre single thread length.
- 3. the application of the filler containing rice-straw fibre as claimed in claim 1, it is characterised in that：Described classification mine tailing is The mine tailing that Pb-Zn deposits beneficiation tailing obtains after being classified, filtering；Its grain density is 3.18g/cm3, infiltration coefficient 8.70E- 04cm/s, size distribution d10=3.422 μm, d50=35.42 μm, d90=124.9 μm, dmean=50.59 μm, heterogeneous system Number Cu=14.01.
- 4. the application of the filler containing rice-straw fibre as claimed in claim 1, it is characterised in that：Described filler In, the parts by weight of rice-straw fibre are 0.5~1.5 part, the parts by weight of cement are 259~326 parts, the parts by weight that are classified mine tailing are 1150~1350 parts.
- 5. the application of the filler containing rice-straw fibre as described in any one of Claims 1 to 4, it is characterised in that：Described Rod milling sand is also included in filler.
- 6. the application of the filler containing rice-straw fibre as claimed in claim 5, it is characterised in that：Described rod milling sand is lead Coarse aggregate after zinc ore barren rock is levigate, its grain density are 2.80g/cm3, infiltration coefficient 3.80E-03cm/s, size distribution For d10=40.24 μm, d50=131.8 μm, d90=371.1 μm, dmean=173.0 μm, nonuniformity coefficient Cu=3.98.
- 7. the application of the filler containing rice-straw fibre as claimed in claim 6, it is characterised in that：Described filler In, the parts by weight of rod milling sand are less than or equal to 135 parts.
- 8. the application of the filler containing rice-straw fibre as described in any one of claim 1~7, it is characterised in that：Using Cheng Zhong, will filler each component mix after mix again with water, be configured to mass concentration as 73~77%, density for 2105~ 2144kg/m3Filling slurry；Described filling slurry is carried out into mining area filling by way of pipeline pumping or self-flowing pastefill using mine drop again to apply Work.
- A kind of 9. filler for implementing the application of any one of claim 1~8.
- A kind of 10. filling slurry for implementing to apply described in claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710956681.2A CN107500686B (en) | 2017-10-13 | 2017-10-13 | Filling material containing straw fibers and application thereof in filling mining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710956681.2A CN107500686B (en) | 2017-10-13 | 2017-10-13 | Filling material containing straw fibers and application thereof in filling mining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107500686A true CN107500686A (en) | 2017-12-22 |
| CN107500686B CN107500686B (en) | 2020-06-30 |
Family
ID=60701773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710956681.2A Active CN107500686B (en) | 2017-10-13 | 2017-10-13 | Filling material containing straw fibers and application thereof in filling mining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107500686B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111207970A (en) * | 2019-10-21 | 2020-05-29 | 江西理工大学 | Method for improving tensile strength of full-tailing cemented filling body by using rice straws |
| CN112523801A (en) * | 2020-11-23 | 2021-03-19 | 中南大学 | Fiber woven mesh reinforced tailing solidification filling structure and filling process thereof |
| CN113248216A (en) * | 2021-06-21 | 2021-08-13 | 北京科技大学 | Preparation and application method of rice hull ash-doped cemented filling material |
| CN113816663A (en) * | 2021-09-30 | 2021-12-21 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | Fiber-containing composite filler material and concrete member |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102531482A (en) * | 2012-01-12 | 2012-07-04 | 瓮福（集团）有限责任公司 | Filling slurry for filling mining method and preparation method for filling slurry |
| CN103102089A (en) * | 2013-01-30 | 2013-05-15 | 中钢集团马鞍山矿山研究院有限公司 | Binding material for filling fine-grain tailings |
| CN103755233A (en) * | 2013-12-19 | 2014-04-30 | 柳州正菱集团有限公司 | Crack-resistant concrete |
| CN103803929A (en) * | 2013-12-27 | 2014-05-21 | 金川集团股份有限公司 | Filling cementing material prepared by using desulfurized lime-ash to replace gypsum |
| CN107082604A (en) * | 2017-04-26 | 2017-08-22 | 湖北三宁矿业有限公司 | A kind of coarse aggregate phosphorus ore cemented filling material defeated applied to big times of spool |
-
2017
- 2017-10-13 CN CN201710956681.2A patent/CN107500686B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102531482A (en) * | 2012-01-12 | 2012-07-04 | 瓮福（集团）有限责任公司 | Filling slurry for filling mining method and preparation method for filling slurry |
| CN103102089A (en) * | 2013-01-30 | 2013-05-15 | 中钢集团马鞍山矿山研究院有限公司 | Binding material for filling fine-grain tailings |
| CN103755233A (en) * | 2013-12-19 | 2014-04-30 | 柳州正菱集团有限公司 | Crack-resistant concrete |
| CN103803929A (en) * | 2013-12-27 | 2014-05-21 | 金川集团股份有限公司 | Filling cementing material prepared by using desulfurized lime-ash to replace gypsum |
| CN107082604A (en) * | 2017-04-26 | 2017-08-22 | 湖北三宁矿业有限公司 | A kind of coarse aggregate phosphorus ore cemented filling material defeated applied to big times of spool |
Non-Patent Citations (1)
| Title |
|---|
| 周正濂等: ""用纤维加强胶结充填料的研究"", 《世界采矿快报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111207970A (en) * | 2019-10-21 | 2020-05-29 | 江西理工大学 | Method for improving tensile strength of full-tailing cemented filling body by using rice straws |
| CN112523801A (en) * | 2020-11-23 | 2021-03-19 | 中南大学 | Fiber woven mesh reinforced tailing solidification filling structure and filling process thereof |
| CN113248216A (en) * | 2021-06-21 | 2021-08-13 | 北京科技大学 | Preparation and application method of rice hull ash-doped cemented filling material |
| CN113816663A (en) * | 2021-09-30 | 2021-12-21 | 深圳市中金岭南有色金属股份有限公司凡口铅锌矿 | Fiber-containing composite filler material and concrete member |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107500686B (en) | 2020-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107500685A (en) | A kind of application of cemented filling material containing rice-straw fibre in mining with stowing | |
| CN107500634A (en) | A kind of application of cemented filling material containing polypropylene fibre in mining with stowing | |
| CN102320803B (en) | Self-compacting concrete prepared from iron ore tailings, and preparation method thereof | |
| CN101008315B (en) | Paste-like backfill technology used in coal cutting area | |
| CN107500686A (en) | A kind of filler containing rice-straw fibre and its application in mining with stowing | |
| CN102924010A (en) | Self-compaction filling paste body and preparation process thereof | |
| CN1252781A (en) | High pulp density, fast setting and high early strength backfill method and material | |
| CN107640940A (en) | A kind of filler containing polypropylene fibre and its application in mining with stowing | |
| CN105016641B (en) | A kind of agstone composite blend | |
| CN102923997B (en) | Method for preparing high-strength semi-regenerative coarse aggregate concretes | |
| CN101638924B (en) | Limestone tailing-bricks and preparation method thereof | |
| CN107117887A (en) | A kind of method that use Machine-made Sand prepares fiber pump concrete | |
| CN104386987B (en) | Composite grouting material of modified pitch emulsion and modified cement and preparation method thereof | |
| CN109650810A (en) | A kind of self-compacting high performance concrete and preparation method thereof | |
| CN110218037A (en) | A kind of wet ash discharge base filler and its preparation method and application | |
| Adekunle et al. | Utilization of construction waste tiles as a replacement for fine aggregates in concrete | |
| CN113800847A (en) | Mining goaf filling material prepared from mine tailings | |
| CN108178579A (en) | Gravity flowing levelling mortar prepared using building waste and preparation method thereof | |
| CN110482966A (en) | Compound cemented filling material and its preparation method and application | |
| CN110092627B (en) | Dry material concrete and preparation method thereof | |
| CN114349405B (en) | Composition for preparing filling material, preparation method of filling material and method for filling mine | |
| CN109320157A (en) | A kind of coal mine gob filling lotion and preparation method thereof for dividing material to prepare using waste tire of automobile | |
| CN105777014B (en) | A kind of high pumping phosphate mine packing material and preparation method thereof | |
| CN111517704B (en) | Coal slime-based roadway bottom paving material and preparation method thereof | |
| CN103936314B (en) | The organically-modified active mineral of response type, gap gradation asphalt and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |