CN108947435A - A kind of filling in mine material and preparation method thereof of cooperative disposal mine heavy metal wastewater thereby - Google Patents
A kind of filling in mine material and preparation method thereof of cooperative disposal mine heavy metal wastewater thereby Download PDFInfo
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- CN108947435A CN108947435A CN201810761230.8A CN201810761230A CN108947435A CN 108947435 A CN108947435 A CN 108947435A CN 201810761230 A CN201810761230 A CN 201810761230A CN 108947435 A CN108947435 A CN 108947435A
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- metal wastewater
- red mud
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- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 51
- 239000002351 wastewater Substances 0.000 title claims abstract description 50
- 238000011049 filling Methods 0.000 title claims abstract description 34
- 239000000463 material Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 16
- 239000010440 gypsum Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims abstract description 10
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 9
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 9
- 239000010881 fly ash Substances 0.000 claims abstract description 9
- 239000004571 lime Substances 0.000 claims abstract description 9
- 239000004568 cement Substances 0.000 claims abstract description 7
- 239000000945 filler Substances 0.000 claims abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 239000002994 raw material Substances 0.000 claims description 16
- 238000004131 Bayer process Methods 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 239000011343 solid material Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 5
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 2
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 claims description 2
- 238000005245 sintering Methods 0.000 claims description 2
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 2
- 239000002910 solid waste Substances 0.000 abstract description 9
- 239000007787 solid Substances 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000006641 stabilisation Effects 0.000 abstract 1
- 239000002699 waste material Substances 0.000 description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 238000002386 leaching Methods 0.000 description 5
- 239000002689 soil Substances 0.000 description 5
- 229910020218 Pb—Zn Inorganic materials 0.000 description 4
- 238000001354 calcination Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000010908 plant waste Substances 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 229910052925 anhydrite Inorganic materials 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000005272 metallurgy Methods 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000010878 waste rock Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 208000030527 Minamata disease Diseases 0.000 description 1
- 208000009507 Nervous System Mercury Poisoning Diseases 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011953 bioanalysis Methods 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- KFZAUHNPPZCSCR-UHFFFAOYSA-N iron zinc Chemical compound [Fe].[Zn] KFZAUHNPPZCSCR-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010814 metallic waste Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000002367 phosphate rock Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 238000003911 water pollution Methods 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
- C04B28/14—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
- C04B28/142—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 containing synthetic or waste calcium sulfate cements
- C04B28/143—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 containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being phosphogypsum
-
- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00724—Uses not provided for elsewhere in C04B2111/00 in mining operations, e.g. for backfilling; in making tunnels or galleries
-
- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00767—Uses not provided for elsewhere in C04B2111/00 for waste stabilisation purposes
Abstract
The present invention discloses a kind of filling in mine material and preparation method thereof of cooperative disposal mine heavy metal wastewater thereby, belongs to waste water, industrial solid castoff disposal technology field.Ardealite is first calcined 2-12h at 110-180 DEG C by this method, obtain semi-hydrated gypsum, red mud, ardealite, semi-hydrated gypsum, flyash, lime, exciting agent, mine heavy metal wastewater thereby are put into cement mixer afterwards and stir 5 ~ 40min to get the filler in filling mine pit is arrived；Filling in mine lower cost for material prepared by the present invention, it is easy to operate, reach filling in mine requirement, preferably using industrial bulk solid waste red mud and ardealite and mine heavy metal wastewater thereby can be disposed, the heavy metal in waste water is cured stabilisation.The filling in mine material preparation method has preferable economic benefit and environmental benefit.
Description
Technical field
The present invention discloses a kind of filling in mine material and preparation method thereof of cooperative disposal mine heavy metal wastewater thereby, belongs to useless
Water, industrial solid castoff disposal technology field.
Background technique
Red mud is that the metallurgy of aluminium processed extracts the alkali solid waste being discharged when aluminium oxide, when ardealite is Phosphate Rock acid
The by-product acidity gypsum of generation.Currently, China's red mud annual emissions are more than 30,000,000 t, the annual emissions of ardealite are more than
50000000 t, red mud are mainly used for building materials, recycling iron etc., and ardealite is then mainly used for extracting sulfuric acid co-producing cement, building materials etc..But
The comprehensive utilization ratio of red mud and ardealite is lower at present, and main processing mode all exists and bursts mainly using stockpiling of building a dam
Dam risk, stockyard surrounding body easy to pollute, air, soil, and take up an area the problems such as more, slag is costly.With the metallurgy of aluminium and
The development of phosphorous chemical industry, red mud and ardealite volume of cargo in storage are more and more, using and reduce red mud, ardealite has been the metallurgy of aluminium, phosphorus
Development of chemical industry and environmental protection one of problem in the urgent need to address.
Contain vast resources in mine, such as coal and various metalliferous minerals, because living and the demand of rapid economic development,
Various mineral resources are mined from mine.Mining leaves many mines while bringing various mineral resources
Pit and the problems such as bring subsidence and environmental pollution, mine wastewater is exactly the pollution problem for needing to solve.
The main harm substance of mine wastewater is the heavy metal ion in waste water, and heavy metal wastewater thereby has toxic effect long, biological
The characteristics of non-degradable, if it will cause serious soil, water pollution for direct emission.Heavy metal ion enters water body and soil
After human body and can be entered by food chain so as to cause human body diseases by biological adsorption, accumulation.Such as Japanese minamata disease, Hunan
Children blood lead is exceeded etc..Inexpensive, efficient process for treating heavy-metal waste water is always the emphasis of environmentalist's research.
The main methods of mine heavy metal wastewater thereby have neutralisation, coagulation sedimentation, bioanalysis and artificial swamp method
Deng, but exist and lead to the problem of a large amount of sludge or handle slow.For the hole internal drainage that mining production activity generates, dressing plant's tail
Mine draining, the heavy metal wastewater therebies such as waste-rock yard leaching immersion, using bulk solid waste red mud and ardealite cooperative disposal mine
Heavy metal wastewater thereby can solve red mud, ardealite stockpiling bring environmental pollution, stockpiling land occupation and mine heavy metal containing wastewater treatment
The problem of, and mine can be filled, reduce subsidence.
Summary of the invention
The heavy metal wastewater thereby that it is an object of the invention to generate for red mud, ardealite recycling, minimizing and mining
Processing provides a kind of method of comprehensive utilization, is specifically implemented with the following technical solutions:
A kind of filling in mine material of cooperative disposal mine heavy metal wastewater thereby, the filling in mine material are prepared by following raw material
Arrive, each raw material and its mass percent are as follows: red mud 20 ~ 50%, 15 ~ 40 % of ardealite, semi-hydrated gypsum 4 ~ 15%, flyash 5 ~ 18%,
Lime 0 ~ 10%, exciting agent 1 ~ 10%, heavy metal wastewater thereby: 20-40%.
Preferably, filling in mine material of the present invention is prepared by following raw material, each raw material and its mass percent
Are as follows: red mud 25-40%, ardealite 20-35%, semi-hydrated gypsum 5 ~ 13%, flyash 6 ~ 15%, lime 2 ~ 10%, exciting agent 2 ~ 5%, mine
Mountain heavy metal wastewater thereby 22 ~ 30%.
Red mud of the present invention is one of Bayer process red mud, red mud from sintering process, combination method red mud or a variety of mixing groups
At.
Exciting agent of the present invention is Na2SiO3, sodium lignin sulfonate, one of triethanolamine or a variety of mixing composition.
Another object of the present invention is to provide the systems of the filling in mine material of cooperative disposal mine heavy metal wastewater thereby
Preparation Method, specifically includes the following steps:
(1) solid material is ground to 200 mesh or more.
(2) prepare semi-hydrated gypsum: the ardealite after taking grinding calcines 2-12h at 110-180 DEG C, cooling, is ground to 200
It is more than mesh；The CaSO after calcination processing4·0.5H2O content has reached 70% or more.
(3) suspended matter in the heavy metal wastewater thereby of mine is removed, then by solid material and mine heavy metal wastewater thereby by corresponding
Percent mass proportioning be put into cement mixer and stir and evenly mix, and continue 5 ~ 40min of stirring, keep its physical-chemical reaction abundant
Completely to get arrive mine retrofilling material.
Mine heavy metal wastewater thereby of the present invention is that internal drainage, mill tailings draining, waste-rock yard leaching immersion one are cheated in mine
Kind or a variety of mixing composition；Its mine heavy metal wastewater thereby contains various heavy；Using grid, sedimentation basin etc. before its utilization
Carry out suspended matter removal.
The principle of the present invention are as follows: red mud is alkaline solid waste, and ardealite is acid solid waste, is main with red mud and ardealite
Filling in mine raw material after mixing, can effectively remove the acidity and alkalinity of red mud and ardealite.If mine wastewater is acidity
Then neutralized by lime etc..Silicate, phosphate, sulfate of the mixture ph between 6 ~ 8, in neutral environment and mixture
Equal ingredients can play good solidification to most of heavy metals；Furthermore the adsorptivity of red mud and semi-hydrated gypsum, lime, flyash
Cementation solidifying can also solidify heavy metal adsorption and package；Its mixture intensity with higher, can be used as filling in mine.
Beneficial effects of the present invention: 75% or more the raw material of filling in mine material is useless from industrial solid castoff and mine
Water.While handling industrial solid castoff, cooperative disposal mine heavy metal wastewater thereby realizes the treatment of wastes with processes of wastes against one another；Charges leach
Liquid heavy metal concentration " water environment quality standard " III class water hereinafter, preparation method is very simple, easy to operate, energy consumption
Low, equipment used is very common, environmental pollution very little；It eliminates mine subsidence and reduces general tailing, solid waste
Influence of the filling in mine object to underground water and ambient enviroment；Red mud and ardealite stockpiling soil have been saved, has been avoided to stockyard week
Side water body, atmosphere, soil cause serious pollution.
Specific embodiment
Invention is further described in detail combined with specific embodiments below, but protection scope of the present invention is not limited to
The content.
Embodiment 1
Red mud used is the Bayer process red mud that Yunnan factory uses alumina producing Bayer process to generate in the present embodiment；Phosphorus stone used
Cream is that Yunnan factory uses the Industrial Solid Waste generated in Wet-process Phosphoric Acid Production, wherein CaS042H2O content is up to 91%；Mine used
Heavy metal wastewater thereby is Yunnan Pb-Zn deposits dressing plant waste water, and waste component is in table 1.
1 Pb-Zn deposits dressing plant waste strength of table and filling waste strength (mg/L)
A kind of filling in mine material of cooperative disposal mine heavy metal wastewater thereby, the filling in mine material are prepared by following raw material
It arrives, each raw material and its mass percent are as follows: red mud 50%, ardealite 15%, semi-hydrated gypsum 4%, flyash 5%, lime 5%, exciting agent
1%, heavy metal wastewater thereby: 20%.
The preparation method of filling in mine material described in the present embodiment, specifically includes the following steps:
(1) solid material is ground to 200 mesh or more.
(2) prepare semi-hydrated gypsum: the ardealite after taking grinding calcines 12h at 110 DEG C, cooling, be ground to 200 mesh with
On；The CaSO after calcination processing4·0.5H2O content has reached 70% or more.
(3) suspended matter in the heavy metal wastewater thereby of mine is removed, then by solid material and mine heavy metal wastewater thereby by corresponding
Percent mass proportioning be put into cement mixer and stir and evenly mix, and continue to stir 40min, keep its physical-chemical reaction sufficiently complete
Entirely to get arrive mine retrofilling material；The goaf that its available mixed mud pump is transported to mine is filled, which exists
After maintenance 24 days, its leaching concentration is surveyed in table 1, result is lower than the III class water of " water environment quality standard ".
Embodiment 2
Red mud used is the Bayer process red mud that Yunnan factory uses alumina producing Bayer process to generate in the present embodiment；Red mud used
Bayer process red mud is generated using alumina producing Bayer process for Yunnan factory；Ardealite used is Yunnan factory using phosphoric acid by wet process
The Industrial Solid Waste generated in production, wherein CaS04 2H2O content is up to 85%；Mine heavy metal wastewater thereby used is Yunnan zinc-iron
Mine barren rock stacks field, and waste component is in table 2.
2 Pb-Zn deposits dressing plant waste strength of table and filling waste strength (mg/L)
A kind of filling in mine material of cooperative disposal mine heavy metal wastewater thereby, the filling in mine material are prepared by following raw material
It arrives, each raw material and its mass percent are as follows: red mud 22%, ardealite 16%, semi-hydrated gypsum 5%, flyash 7%, exciting agent 10%, again
Metallic wastewater: 40%.
The preparation method of filling in mine material described in the present embodiment, specifically includes the following steps:
(1) solid material is ground to 200 mesh or more.
(2) prepare semi-hydrated gypsum: the ardealite after taking grinding calcines 2h at 180 DEG C, cooling, is ground to 200 mesh or more；
The CaSO after calcination processing4·0.5H2O content has reached 74% or more.
(3) suspended matter in the heavy metal wastewater thereby of mine is removed, then by solid material and mine heavy metal wastewater thereby by corresponding
Percent mass proportioning be put into cement mixer and stir and evenly mix, and continue to stir 5min, keep its physical-chemical reaction sufficiently complete
Entirely to get arrive mine retrofilling material；The goaf that its available mixed mud pump is transported to mine is filled, which exists
After maintenance 24 days, its leaching concentration is surveyed in table 2, result is lower than the III class water of " water environment quality standard ".
Embodiment 3
Red mud used is that Yunnan factory using alumina producing Bayer process generates Bayer process red mud in the present embodiment；Ardealite used
It is Yunnan factory using the Industrial Solid Waste generated in Wet-process Phosphoric Acid Production, wherein CaS04 2H2O content is up to 93%；Mine used
Heavy metal wastewater thereby is Yunnan copper Mine water flow, and waste component is in table 3.
3 Pb-Zn deposits dressing plant waste strength of table and filling waste strength (mg/L)
A kind of filling in mine material of cooperative disposal mine heavy metal wastewater thereby, the filling in mine material are prepared by following raw material
It arrives, each raw material and its mass percent are as follows: red mud 20%, 40 % of ardealite, semi-hydrated gypsum 10%, flyash 8%, lime 8%, excitation
Agent 4%, heavy metal wastewater thereby: 20%.
The preparation method of filling in mine material described in the present embodiment, specifically includes the following steps:
(1) solid material is ground to 200 mesh or more.
(2) prepare semi-hydrated gypsum: the ardealite after taking grinding calcines 6h at 130 DEG C, cooling, is ground to 200 mesh or more；
The CaSO after calcination processing4·0.5H2O content has reached 76% or more.
(3) suspended matter in the heavy metal wastewater thereby of mine is removed, then by solid material and mine heavy metal wastewater thereby by corresponding
Percent mass proportioning be put into cement mixer and stir and evenly mix, and continue to stir 20min, keep its physical-chemical reaction sufficiently complete
Entirely to get arrive mine retrofilling material；The goaf that its available mixed mud pump is transported to mine is filled, which exists
After maintenance 24 days, its leaching concentration is surveyed in table 3, result is lower than the III class water of " water environment quality standard ".
Claims (5)
1. a kind of filling in mine material of cooperative disposal mine heavy metal wastewater thereby, it is characterised in that: the filling in mine material by with
Lower raw material is prepared, each raw material and its mass percent are as follows: red mud 20 ~ 50%, 15 ~ 40 % of ardealite, semi-hydrated gypsum 4 ~ 15%,
Flyash 5 ~ 18%, lime 0 ~ 10%, exciting agent 1 ~ 10%, heavy metal wastewater thereby: 20-40%.
2. the filling in mine material of cooperative disposal mine heavy metal wastewater thereby according to claim 1, it is characterised in that: the mine
Filler is prepared by following raw material, each raw material and its mass percent are as follows: red mud 25-40%, ardealite 20-35%, half
Water gypsum 5 ~ 13%, flyash 6 ~ 15%, lime 2 ~ 10%, exciting agent 2 ~ 5%, mine heavy metal wastewater thereby 22 ~ 30%.
3. the filling in mine material of cooperative disposal mine according to claim 1 or claim 2 heavy metal wastewater thereby, it is characterised in that: institute
Stating red mud is that one of Bayer process red mud, red mud from sintering process, combination method red mud or a variety of mixing form.
4. the filling in mine material of cooperative disposal mine according to claim 1 or claim 2 heavy metal wastewater thereby, it is characterised in that: institute
Stating exciting agent is Na2SiO3, sodium lignin sulfonate, one of triethanolamine or a variety of mixing composition.
5. the preparation method of the filling in mine material of cooperative disposal mine heavy metal wastewater thereby described in claim 1, which is characterized in that
Specifically includes the following steps:
(1) solid material is ground to 200 mesh or more；
(2) prepare semi-hydrated gypsum: the ardealite after taking grinding calcines 2-12h at 110-180 DEG C, cooling, be ground to 200 mesh with
On；
(3) suspended matter in the heavy metal wastewater thereby of mine is removed, solid material and mine heavy metal wastewater thereby are then pressed into corresponding matter
Amount per distribution ratio, which is put into cement mixer, to be stirred and evenly mixed, and continues 5 ~ 40min of stirring, keeps its physical-chemical reaction sufficiently complete
Entirely to get arrive mine retrofilling material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810761230.8A CN108947435A (en) | 2018-07-12 | 2018-07-12 | A kind of filling in mine material and preparation method thereof of cooperative disposal mine heavy metal wastewater thereby |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810761230.8A CN108947435A (en) | 2018-07-12 | 2018-07-12 | A kind of filling in mine material and preparation method thereof of cooperative disposal mine heavy metal wastewater thereby |
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| Publication Number | Publication Date |
|---|---|
| CN108947435A true CN108947435A (en) | 2018-12-07 |
Family
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| CN201810761230.8A Pending CN108947435A (en) | 2018-07-12 | 2018-07-12 | A kind of filling in mine material and preparation method thereof of cooperative disposal mine heavy metal wastewater thereby |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109626905A (en) * | 2018-12-29 | 2019-04-16 | 紫金矿业集团股份有限公司 | A method of underground filling is used for based on slag is neutralized |
| CN111205035A (en) * | 2020-01-17 | 2020-05-29 | 山东大学 | Backfill prepared from red mud and wastewater as well as preparation method and application thereof |
| CN113061011A (en) * | 2021-04-19 | 2021-07-02 | 贵州理工学院 | Method for manufacturing red mud-modified phosphogypsum mine filling material |
| CN113354052A (en) * | 2021-06-10 | 2021-09-07 | 中国矿业大学 | Acidic mine wastewater treatment material and preparation method thereof |
| CN113387669A (en) * | 2021-04-25 | 2021-09-14 | 中冶南方都市环保工程技术股份有限公司 | Red mud-phosphogypsum-based heavy metal curing agent, and preparation method and application thereof |
| CN113511846A (en) * | 2021-05-11 | 2021-10-19 | 昆明理工大学 | Method for solidifying arsenic by using red mud-metakaolin-based multi-element solid waste geopolymer |
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| CN111205035B (en) * | 2020-01-17 | 2021-06-01 | 山东大学 | Backfill prepared from red mud and wastewater as well as preparation method and application thereof |
| CN113061011A (en) * | 2021-04-19 | 2021-07-02 | 贵州理工学院 | Method for manufacturing red mud-modified phosphogypsum mine filling material |
| CN113061011B (en) * | 2021-04-19 | 2023-04-21 | 贵州理工学院 | Manufacturing method of red mud-modified phosphogypsum mine filling material |
| CN113387669A (en) * | 2021-04-25 | 2021-09-14 | 中冶南方都市环保工程技术股份有限公司 | Red mud-phosphogypsum-based heavy metal curing agent, and preparation method and application thereof |
| CN113511846A (en) * | 2021-05-11 | 2021-10-19 | 昆明理工大学 | Method for solidifying arsenic by using red mud-metakaolin-based multi-element solid waste geopolymer |
| CN113354052A (en) * | 2021-06-10 | 2021-09-07 | 中国矿业大学 | Acidic mine wastewater treatment material and preparation method thereof |
| CN113526941A (en) * | 2021-08-18 | 2021-10-22 | 贵州理工学院 | Gob-side entry retaining roadside filling support material using modified industrial gypsum to cure red mud and preparation method thereof |
| CN113880539A (en) * | 2021-11-24 | 2022-01-04 | 贵州理工学院 | Mine karst cave filling slurry and preparation method thereof |
| CN115215624A (en) * | 2022-05-30 | 2022-10-21 | 湖北工业大学 | Carbon dioxide geological sequestration method using phosphogypsum as filling material |
| CN115215624B (en) * | 2022-05-30 | 2023-05-05 | 湖北工业大学 | Carbon dioxide geological sequestration method using phosphogypsum as filler |
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Application publication date: 20181207 |