CN104817286A - Method for preparing novel cementing agent for total tailings cementation and discharge - Google Patents
Method for preparing novel cementing agent for total tailings cementation and discharge Download PDFInfo
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- CN104817286A CN104817286A CN201510166877.2A CN201510166877A CN104817286A CN 104817286 A CN104817286 A CN 104817286A CN 201510166877 A CN201510166877 A CN 201510166877A CN 104817286 A CN104817286 A CN 104817286A
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- slag
- gypsum
- jointing compound
- crude tailings
- tailings
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000002893 slag Substances 0.000 claims abstract description 32
- 239000010881 fly ash Substances 0.000 claims abstract description 24
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 20
- 239000010440 gypsum Substances 0.000 claims abstract description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 10
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 10
- 239000004571 lime Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 10
- 229910052742 iron Inorganic materials 0.000 claims abstract description 9
- 238000000498 ball milling Methods 0.000 claims abstract description 8
- 239000002002 slurry Substances 0.000 claims abstract description 6
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 150000001875 compounds Chemical class 0.000 claims description 41
- 238000007596 consolidation process Methods 0.000 claims description 32
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 28
- 238000002360 preparation method Methods 0.000 claims description 16
- 239000000292 calcium oxide Substances 0.000 claims description 15
- 235000012255 calcium oxide Nutrition 0.000 claims description 15
- 238000000227 grinding Methods 0.000 claims description 12
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 7
- -1 grog Substances 0.000 claims description 6
- 239000002699 waste material Substances 0.000 claims description 6
- 238000003801 milling Methods 0.000 claims description 4
- 239000011505 plaster Substances 0.000 claims description 4
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical group [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Inorganic materials [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 2
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 239000011507 gypsum plaster Substances 0.000 claims description 2
- 239000004572 hydraulic lime Substances 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- 235000010755 mineral Nutrition 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000004576 sand Substances 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000011049 filling Methods 0.000 abstract description 2
- 239000002440 industrial waste Substances 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 238000010791 quenching Methods 0.000 abstract 1
- 230000000171 quenching effect Effects 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- 238000004155 tailings processing Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 9
- 239000004568 cement Substances 0.000 description 8
- 238000012360 testing method Methods 0.000 description 7
- 239000011398 Portland cement Substances 0.000 description 5
- 239000000378 calcium silicate Substances 0.000 description 5
- 229910052918 calcium silicate Inorganic materials 0.000 description 5
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 5
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 229910001653 ettringite Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002910 solid waste Substances 0.000 description 3
- 239000011400 blast furnace cement Substances 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000019739 Dicalciumphosphate Nutrition 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- OBNDGIHQAIXEAO-UHFFFAOYSA-N [O].[Si] Chemical compound [O].[Si] OBNDGIHQAIXEAO-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- AGWMJKGGLUJAPB-UHFFFAOYSA-N aluminum;dicalcium;iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Ca+2].[Ca+2].[Fe+3] AGWMJKGGLUJAPB-UHFFFAOYSA-N 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- HOOWDPSAHIOHCC-UHFFFAOYSA-N dialuminum tricalcium oxygen(2-) Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[Al+3].[Al+3].[Ca++].[Ca++].[Ca++] HOOWDPSAHIOHCC-UHFFFAOYSA-N 0.000 description 1
- NEFBYIFKOOEVPA-UHFFFAOYSA-K dicalcium phosphate Chemical compound [Ca+2].[Ca+2].[O-]P([O-])([O-])=O NEFBYIFKOOEVPA-UHFFFAOYSA-K 0.000 description 1
- 229940038472 dicalcium phosphate Drugs 0.000 description 1
- 229910000390 dicalcium phosphate Inorganic materials 0.000 description 1
- BCAARMUWIRURQS-UHFFFAOYSA-N dicalcium;oxocalcium;silicate Chemical compound [Ca+2].[Ca+2].[Ca]=O.[O-][Si]([O-])([O-])[O-] BCAARMUWIRURQS-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 235000021321 essential mineral Nutrition 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- CCEKAJIANROZEO-UHFFFAOYSA-N sulfluramid Chemical group CCNS(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F CCEKAJIANROZEO-UHFFFAOYSA-N 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 229910021534 tricalcium silicate Inorganic materials 0.000 description 1
- 235000019976 tricalcium silicate Nutrition 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Landscapes
- Processing Of Solid Wastes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a method for preparing a novel cementing agent for total tailings cementation and discharge, which belongs to the tailings processing field, and the novel cementing agent is used for cementation and discharge of metal mine tailings or underground filling of the tailings. The novel cementing agent comprises the following components according to certain mass fraction: 40-80% of iron ore blast furnace water quenching slag, 10-30% of fly ash, 5-20% of clinker, 4-8% of lime and 2-6% of gypsum. A part of the components are performed with ball milling by a bowl mill, and the ball milling time are respectively 50 minutes for clinker, 30 minutes for slag, 10 minutes for gypsum and 3 minutes for fly ash. The method directly uses general industrial waste material slag and fly ash, an active exciting agent with a reasonable mass fraction is doped, and the cementation and discharge slurry with good workability and satisfied discharge intensity requirement can be obtained by mixing with water and total tailings aggregate, and the method has good social meaning and economic benefit for industrial resource recovery utilization and discharge cost control of mine tailings.
Description
Technical field
The present invention relates to tailings glass field, particularly relate to a kind of crude tailings consolidation and discharge novel jointing compound.
Background technology
At present, China all types of industries solid waste cumulative stock about 10,000,000,000 t, and annual constantly growth.Mainly comprise: mine tailing, slag, melting waste slag, coal gangue, flyash and other refuses.According to Environmental statistics annual report data, China's general industrial solid waste total emission volumn in 2013 is 31.3 hundred million t, and wherein mine tailing accounts for 34%, slag accounts for 8.5%, melting waste slag accounts for 11.8%, coal gangue accounts for 12.3%, flyash accounts for 14.8%, other refuses account for 18.7%.Be 20.6 hundred million t by this annual report known 2013 China's general industrial solid waste volumes of comprehensive utilization, comprehensive utilization ratio is on the low side, is only 62.2%.
The tailings huge in the face of quantity discharged and the problem such as environmental pollution, land occupation, potential safety hazard caused by it, crude tailings consolidation discharge technology is a kind of Novel tailing processing mode of rising in recent years, refer to select efficient solidifying agent by select factory to discharge crude tailings consolidation process after, be disposed to surface subsidence hole that mining formed or store up and be suitable for place to earth's surface, and forming the induration of some strength.This technology not only eliminates the dam break hidden danger of traditional tailing, and avoids problem such as tailings chance cement collapse and airborne dust etc., for tailings carries out early-stage preparations, is the effective way of process mine discharge.The jointing compound that current crude tailings consolidation discharge technology is conventional, mainly use for reference filling system, use ordinary Portland cement, composite Portland cement or Portland blast furnace slag cement etc., but due to conventional cement, energy consumption is high in process of production, pollution is large, material use efficiency is low, and cost is high, therefore govern applying of crude tailings consolidation discharge technology.
Thus, according to difference raw-material consolidation diagenesis microscopic mechanism, by adopting new raw material and new production method to prepare the novel cementing material that bonding capacity is good, raw material availability is high, endurance quality is good, provide actual guidance to the control of consolidation discharge costs and the popularization of crude tailings consolidation discharge technology.
Summary of the invention
The object of this invention is to provide the preparation method that a kind of crude tailings consolidation discharges novel jointing compound.This novel jointing compound is according to the feature of crude tailings consolidation discharge technology, and press certain mass mark by the raw material of certain component and prepare, part material is through ball mill ball milling.The present invention directly uses general industry waste material slag and flyash, and the activity excitant of admixture reasonable quality mark, with can obtain the consolidation that workability is good, intensity meets emission request after crude tailings aggregate mixing and water adding and discharge slurry, the discharge costs recycling and control mine tailings to industrial resources has good society meaning and economic benefit.
Crude tailings consolidation discharges a preparation method for novel jointing compound, has following main points:
This novel jointing compound is made up of iron ore blast furnace slag, flyash, grog, lime and gypsum five kinds of components, and its massfraction is respectively: 40% ~ 80%, 10% ~ 30%, 5% ~ 20%, 4% ~ 8%, 2% ~ 6%; Part material is through ball mill ball milling, and ball milling method is: first respectively by grog grinding 50min, slag milling 30min, gypsum grinding 10min and flyash grinding 3min.After reaching certain fineness, add unslaked lime, grog, slag and gypsum intergrinding 10min, even density can be obtained, the novel jointing compound of crude tailings that component mixes.
This iron ore blast furnace slag described in novel jointing compound, main component is CaO, SiO
2, Al
2o
3, MgO, the oxide compound containing a small amount of Na, Fe and Mn.
This flyash described in novel jointing compound, comprise F class flyash and C class flyash, main component is SiO
2, Al
2o
3, Fe
2o
3, CaO, and containing the oxide compound of a small amount of Mg, Na and Mn.
This gypsum described in novel jointing compound, comprises plaster stone, bassanite, desulfurated plaster and the plaster of paris etc.
This grog described in novel jointing compound is mainly containing CaO, SiO
2, Al
2o
3, Fe
2o
3, wherein Calucium Silicate powder mineral are not less than 66%, CaO and SiO
2mass ratio is not less than 2.0.
This lime described in novel jointing compound comprises air hardening lime and hydraulic lime, and main component is calcium oxide mainly.
This described in novel jointing compound ball milling order comprise first respectively by grog grinding 50min, slag milling 30min, gypsum grinding 10min and flyash grinding 3min.Unslaked lime, grog, slag and gypsum intergrinding 10min is added after reaching certain fineness.
This activity excitant described in novel jointing compound is gypsum, lime.
As can be seen from technique scheme, the starting material that novel jointing compound prepared by the present invention adopts not only have been dissolved the industrial waste such as melting waste slag and flyash, reduce the production cost of jointing compound, and material environment friendly is energy-conservation, without the need to complicated calcining process, decrease the carbon emission amount of enterprise.In addition, this jointing compound workability is good, and concretion body strength meets emission request, and alternative conventional cement is as the jointing compound of crude tailings consolidation discharge technology.
Accompanying drawing explanation
Fig. 1 is novel jointing compound preparation flow figure of the present invention.
Embodiment
Below the present invention is described further, but protection scope of the present invention is not limited to the scope of following described embodiment.
In conjunction with preparation flow figure provided by the present invention, the present invention is described further.Illustrate that a kind of crude tailings consolidation of the present invention discharges the performance quality of novel jointing compound below by specific examples.In this example, Anhui Province Li Lou-Wu Ji Tiekuangweikuangku taken from by crude tailings sample, and physico-mechanical properties is in table 1.This tailings belongs to acid tailings, and the proportion of+100 μm-270 μm accounts for 60%, nonuniform coefficent Cu=3.636, curve coefficientCc=1.657, and grating is general.
Table 1 Li Lou-Wu collects iron ore crude tailings fundamental performance parameter
| True density/(tm -3) | Aerated density (tm -3) | Porosity (%) | Natural repose angle (°) |
| 2.80 | 1.74 | 37.86 | 39.5 |
This example is by following scheme preparation crude tailings consolidation discharge slurry:
Crude tailings consolidation discharge slurry is prepared by mass concentration 75%, wherein add jointing compound volume of the present invention and be respectively 4.5% and 6%, i.e. novel jointing compound: crude tailings: water=4.5:70.5:25 and novel jointing compound: crude tailings: water=6:69:25, novel jointing compound preparation program is in table 2 totally 12 groups of examples, and using ordinary Portland cement (P.O.42.5), Portland blast furnace slag cement (P.SA.32.5) and composite Portland cement (P.C.42.5) as consolidation crude tailings simultaneous test, measure the uniaxial compressive strength of test block 3d, 7d, 28d.Instance number 13,14 and 15 is the reference simultaneous test that with the addition of ordinary portland cement, complex cement and slag cement respectively, as shown in table 2.
Appropriate " jointing compound-crude tailings-water " and " cement-crude tailings-water " are poured in agitator kettle respectively, use cement mortar mixer, scrape after mixing slurry thoroughly into die trial, be placed in the vibrations of glue sand shaking table and make it evenly closely knit, then test block surface is floating and number.Die trial is placed form removal after leaving standstill 24h at ambient temperature and insert maintaining box.Curing temperature is 20 ± 1 DEG C, humidity >=95%, and curing age is 3d, 7d, 28d.Maintenance is carried out uniaxial compressive strength test to the test block in regulation length of time.
Above-mentioned concretion body strength testing data is drawn as table 4 and table 5.As can be seen from table 4 and table 5, the crude tailings induration early strength that the present invention prepares is a little less than conventional cement, but gain in strength is fast, mid-term and cement maintain an equal level, later stage consolidation effect is all higher than cement (example 5 except under volume 4.5%), consolidation excellent property of the present invention is described, may be used for the discharge of crude tailings consolidation.
A kind of crude tailings consolidation of the present invention discharges the preparation method of novel jointing compound, according to the feature of crude tailings consolidation discharge technology and the consolidation Rock-forming Mechanism of the material such as melting waste slag and flyash, select alkali-activator gypsum and sulphate activation agent gypsum, the scheme of Optimization and proportioning, its principle is:
Slag has certain kinetic stability by surface silicon oxygen network structural defence, and after jointing compound mixes with water, slag participates in reaction hardly.And the ionization of lime, gypsum, the effective constituent tricalcium silicate C3S of grog, Dicalcium Phosphate (Feed Grade) C
2s, tricalcium aluminate C
3a, tetracalcium aluminoferrite C
4the essential minerals such as AF and water and CaSO
4first react, generate hydrated calcium silicate, a large amount of CH and other gel.Hydrated calcium silicate is water insoluble, separates out with colloidal particle, and cohesion becomes hydrated calcium silicate gel gradually.CH concentration in the solution reaches supersaturation very soon and separates out with crystalline form.Because of in solidifying agent containing a small amount of gypsum, just generate ettringite at the aquation initial stage, ettringite can and aquation gum material better cementing, be conducive to the raising of induration early strength.
After grog hydration reaction, solution pH value rises rapidly, and there is the heterogeneous dynamic ionization equilibrium of CH, now slag micropowder lateral reactivity is excited: OH
-, H
+plasma enters in the cancellated hole of vitreum of water-granulated slag, has adsorbed the Ca of vitreous surface
2+, Mg
2+ion, defines oxyhydroxide, destroy vitreous surface silica network structural defence film, thus slag starts aquation.In addition, the Al in flyash
2o
3, CaO isoreactivity material also participates in aquation and generates ettringite and gelatinous mass.
Flyash plays " micro aggregate effect " at the aquation initial stage, and surface is covered by hydrated calcium silicate gel and CH, Ca
2+and OH
-continuous infiltration.In the aquation later stage, " volcano ash effect " of flyash is ejected completely, generates all kinds hydrated calcium silicate gel and stratlingite gel in induration inside.These tiny gelatinous mass are filled in the micropore of induration inside, compensate for porosity defects, strengthening induration bulk strength.
Table 2 testing program one
Table 3 testing program two
Intensity results/the MPa of table 4 testing program one
| Instance number | Curing age 3d | Curing age 7d | Curing age 28d |
| 1-1 | 0.462 | 0.704 | 2.280 |
| 1-2 | 0.652 | 1.052 | 1.498 |
| 1-3 | 0.512 | 0.950 | 1.446 |
| 1-4 | 0.626 | 0.952 | 1.585 |
| 1-5 | 0.594 | 0.980 | 1.330 |
| 1-6 | 0.332 | 0.768 | 1.454 |
| 1-7 | 0.680 | 0.974 | 1.071 |
| 1-8 | 0.628 | 0.848 | 1.222 |
| 1-9 | 0.554 | 0.702 | 1.456 |
Intensity results/the MPa of table 5 testing program two
| Instance number | Curing age 3d | Curing age 7d | Curing age 28d |
| 2-1 | 0.319 | 0.761 | 1.084 |
| 2-2 | 0.304 | 0.664 | 0.992 |
| 2-3 | 0.229 | 0.632 | 0.856 |
| 2-4 | 0.268 | 0.657 | 0.883 |
| 2-5 | 0.307 | 0.706 | 0.916 |
| 2-6 | 0.216 | 0.523 | 0.862 |
| 2-7 | 0.335 | 0.714 | 0.846 |
| 2-8 | 0.316 | 0.694 | 0.769 |
| 2-9 | 0.246 | 0.315 | 0.508 |
Claims (8)
1. a crude tailings consolidation discharges the preparation method of novel jointing compound, it is characterized in that: be made up of iron ore blast furnace slag, flyash, grog, lime and gypsum five kinds of components, its massfraction is respectively: 40% ~ 80%, 10% ~ 30%, 5% ~ 20%, 4% ~ 8%, 2% ~ 6%; Part material is through ball mill ball milling, and the method order of ball milling is: first respectively alone by grog grinding 50min, slag milling 30min, gypsum grinding 10min, flyash grinding 3min.After reaching certain fineness, add unslaked lime, grog, slag and gypsum intergrinding 10min, even density can be obtained, the novel jointing compound of crude tailings that component mixes.This jointing compound directly uses general industry waste material slag and flyash, and the activity excitant of admixture reasonable quality mark, add water by after certain cement-sand ratio Homogeneous phase mixing with crude tailings, the crude tailings of acquisition discharge slurry has that workability is good, intensity meets the features such as emission request.
2. a kind of crude tailings consolidation according to claim 1 discharges the preparation method of novel jointing compound, it is characterized in that: described blast furnace slag, comprises foundry iron slag, conversion pig slag and special iron slag, and main component is CaO, SiO
2, Al
2o
3, MgO, the oxide compound containing a small amount of Na, Fe and Mn.
3. a kind of crude tailings consolidation according to claim 1 discharges the preparation method of novel jointing compound, it is characterized in that: described flyash, and comprise F class flyash and C class flyash, main component is SiO
2, Al
2o
3, Fe
2o
3, CaO, and containing the oxide compound of a small amount of Mg, Na and Mn.
4. a kind of crude tailings consolidation according to claim 1 discharges the preparation method of novel jointing compound, it is characterized in that: described gypsum, comprises plaster stone, bassanite, desulfurated plaster and the plaster of paris etc.
5. a kind of crude tailings consolidation according to claim 1 discharges the preparation method of novel jointing compound, it is characterized in that: described grog is mainly containing CaO, SiO
2, Al
2o
3, Fe
2o
3, wherein Calucium Silicate powder mineral are not less than 66%, CaO and SiO
2mass ratio is not less than 2.0.
6. a kind of crude tailings consolidation according to claim 1 discharges the preparation method of novel jointing compound, it is characterized in that: described lime comprises air hardening lime and hydraulic lime, and main component is calcium oxide mainly.
7. a kind of crude tailings consolidation according to claim 1 discharges the preparation method of novel jointing compound, it is characterized in that: first respectively by grog grinding 50min, slag milling 30min, gypsum grinding 10min and flyash grinding 3min, after reaching certain fineness, add unslaked lime, grog, slag and gypsum intergrinding 10min.
8. a kind of crude tailings consolidation according to claim 1 discharges the preparation method of novel jointing compound, it is characterized in that: described activity excitant is gypsum, lime.
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|---|---|---|---|
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|---|---|---|---|
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105565735A (en) * | 2015-11-30 | 2016-05-11 | 北京建研昆仑科技有限公司 | Sulfur-containing tailing curing agent, sulfur-containing tailing cemented filling material and cemented filling method for mined-out areas |
| CN108455622A (en) * | 2018-01-29 | 2018-08-28 | 南京工业大学 | CASH mineral suitable for improving volume stability of alkali-activated slag system and preparation method thereof |
| CN110451903A (en) * | 2019-08-29 | 2019-11-15 | 深圳市中金岭南有色金属股份有限公司 | A kind of composite cementitious materials and the cementing method of the ultra-fine tailings of lead-zinc ore of high-sulfur |
| CN113149478A (en) * | 2021-01-25 | 2021-07-23 | 河北工程大学 | Cementing material for modifying bulk filling body and preparation method and application thereof |
| CN113248225A (en) * | 2021-05-20 | 2021-08-13 | 安徽开发矿业有限公司 | Mine filling cementing material |
| CN116514502A (en) * | 2023-05-09 | 2023-08-01 | 长沙有色冶金设计研究院有限公司 | Composite curing agent material, preparation method thereof and tailing curing method |
Citations (6)
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| 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 |
| CN103288399A (en) * | 2013-05-24 | 2013-09-11 | 鄂州华重充填工程材料有限公司 | Production method of tailing dry-pile solidifying agent |
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2015
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| CN102190469A (en) * | 2010-03-08 | 2011-09-21 | 淄博乾耀固结材料有限公司 | Novel tailing consolidator and preparation method thereof |
| CN102249611A (en) * | 2011-05-13 | 2011-11-23 | 河北钢铁集团矿业有限公司 | Cementing material for cemented fill mining of mines and preparation method for cementing material |
| CN102557561A (en) * | 2011-11-23 | 2012-07-11 | 淄博乾耀固结材料有限公司 | High-performance sand-soil consolidation material, as well as preparation method and using method thereof |
| CN103086620A (en) * | 2013-01-30 | 2013-05-08 | 中钢集团马鞍山矿山研究院有限公司 | Gelatinizing agent suitable for unclassified tailing filling |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105565735A (en) * | 2015-11-30 | 2016-05-11 | 北京建研昆仑科技有限公司 | Sulfur-containing tailing curing agent, sulfur-containing tailing cemented filling material and cemented filling method for mined-out areas |
| CN105565735B (en) * | 2015-11-30 | 2018-05-18 | 北京建研昆仑科技有限公司 | Sulfur-bearing tailings curing agent and sulfur-bearing tailing cemented filling material and the consolidated fill method of mine worked-out section |
| CN108455622A (en) * | 2018-01-29 | 2018-08-28 | 南京工业大学 | CASH mineral suitable for improving volume stability of alkali-activated slag system and preparation method thereof |
| CN110451903A (en) * | 2019-08-29 | 2019-11-15 | 深圳市中金岭南有色金属股份有限公司 | A kind of composite cementitious materials and the cementing method of the ultra-fine tailings of lead-zinc ore of high-sulfur |
| CN113149478A (en) * | 2021-01-25 | 2021-07-23 | 河北工程大学 | Cementing material for modifying bulk filling body and preparation method and application thereof |
| CN113248225A (en) * | 2021-05-20 | 2021-08-13 | 安徽开发矿业有限公司 | Mine filling cementing material |
| CN116514502A (en) * | 2023-05-09 | 2023-08-01 | 长沙有色冶金设计研究院有限公司 | Composite curing agent material, preparation method thereof and tailing curing method |
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