CN112551986A - Metal tailing and non-ferrous metal waste residue cementing material and preparation method and application thereof - Google Patents
Metal tailing and non-ferrous metal waste residue cementing material and preparation method and application thereof Download PDFInfo
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- CN112551986A CN112551986A CN202011510350.4A CN202011510350A CN112551986A CN 112551986 A CN112551986 A CN 112551986A CN 202011510350 A CN202011510350 A CN 202011510350A CN 112551986 A CN112551986 A CN 112551986A
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- tailings
- metal
- slag
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- ferrous metal
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- 239000000463 material Substances 0.000 title claims abstract description 84
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 67
- 239000002184 metal Substances 0.000 title claims abstract description 67
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 239000010814 metallic waste Substances 0.000 title claims abstract description 57
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 21
- 239000011381 foam concrete Substances 0.000 claims abstract description 19
- 238000000227 grinding Methods 0.000 claims abstract description 13
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 239000002699 waste material Substances 0.000 claims abstract description 8
- 238000007873 sieving Methods 0.000 claims abstract description 7
- 238000005303 weighing Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000002893 slag Substances 0.000 claims description 49
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 27
- 229910052602 gypsum Inorganic materials 0.000 claims description 20
- 239000010440 gypsum Substances 0.000 claims description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 16
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 16
- 239000004568 cement Substances 0.000 claims description 16
- 239000000292 calcium oxide Substances 0.000 claims description 14
- 235000012255 calcium oxide Nutrition 0.000 claims description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 8
- JQJCSZOEVBFDKO-UHFFFAOYSA-N lead zinc Chemical compound [Zn].[Pb] JQJCSZOEVBFDKO-UHFFFAOYSA-N 0.000 claims description 8
- 229910052750 molybdenum Inorganic materials 0.000 claims description 8
- 239000011733 molybdenum Substances 0.000 claims description 8
- 229910052759 nickel Inorganic materials 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 229910052787 antimony Inorganic materials 0.000 claims description 5
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims description 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 5
- 229910052737 gold Inorganic materials 0.000 claims description 5
- 239000010931 gold Substances 0.000 claims description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910017052 cobalt Inorganic materials 0.000 claims description 4
- 239000010941 cobalt Substances 0.000 claims description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 4
- 239000011777 magnesium Substances 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 239000011591 potassium Substances 0.000 claims description 4
- 229910052700 potassium Inorganic materials 0.000 claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- 239000002689 soil Substances 0.000 claims description 3
- 239000012774 insulation material Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 6
- 238000006703 hydration reaction Methods 0.000 abstract description 6
- 230000036571 hydration Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000001354 calcination Methods 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 7
- 238000001035 drying Methods 0.000 description 5
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 4
- 239000000920 calcium hydroxide Substances 0.000 description 4
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 235000010755 mineral Nutrition 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000011049 filling Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910052925 anhydrite Inorganic materials 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical group [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical group O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 229910001653 ettringite Inorganic materials 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000003837 high-temperature calcination Methods 0.000 description 1
- 238000009854 hydrometallurgy Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000009853 pyrometallurgy Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 239000011882 ultra-fine particle Substances 0.000 description 1
- 210000004127 vitreous body Anatomy 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 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
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a metal tailing and non-ferrous metal waste residue cementing material which comprises the following raw materials in parts by weight: 70-100 parts of metal tailings and non-ferrous metal waste residues and 0.1-30 parts of cementing materials; the preparation method comprises the following steps: (1) weighing the raw materials; (2) mixing and grinding the metal tailings, the non-ferrous metal waste residues and the cementing material, and sieving to obtain the composite material. The clinker content used by the cementing material is not more than 30 percent, and a large amount of metal tailings and non-ferrous metal waste residues accumulated into a mountain can be consumed, so that the effect of changing waste into valuable is achieved; the preparation method is a low-cost grinding process, can be directly used without calcination, and reduces the production cost; the special cementing material for the foam concrete prepared by the technical scheme of the invention has low hydration heat, can be continuously constructed, and avoids the problem of low efficiency of layered construction in the traditional construction.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to a metal tailing and non-ferrous metal waste residue cementing material and a preparation method and application thereof.
Background
In the building material, after a series of physical and chemical actions, the slurry can be changed into a firm stone-like body, and other solid materials can be cemented into a whole to form a substance with certain mechanical strength, which is collectively called as a cementing material.
In the fields of building, traffic and municipal administration, foam concrete is generally used as a heat preservation, heat insulation, energy conservation, filling and buffering material, but most of the foam concrete adopts common portland cement as a main cementing material, which inevitably causes large cement consumption, thereby causing the problem of environmental protection; meanwhile, the hydration heat of cement is too high in continuous operation, so that the problems of water evaporation of foam slurry, insufficient cement hydration, hole wall damage and the like can be caused, and the construction efficiency and the working performance of the foam concrete are seriously limited.
With the vigorous development of the state in the municipal transportation field, large-volume foam concrete is favored by various large industry owners, design houses and construction units as a foundation pit filling material.
Therefore, from the aspects of both environmental protection and material performance, a special cementing material for foam concrete adopting low clinker and high mineral admixture is produced.
Disclosure of Invention
In view of the above, the present invention aims to provide a metal tailing and non-ferrous metal waste slag cementing material, and a preparation method and an application thereof, so as to solve the defects in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a metal tailing and non-ferrous metal waste residue cementing material comprises the following raw materials in parts by weight: 70-100 parts of metal tailings and non-ferrous metal waste residues and 0.1-30 parts of cementing materials;
preferably: 70-100 parts of metal tailings and non-ferrous metal waste residues, 0.1-30 parts of cementing materials and 0.01-5 parts of quicklime;
more preferably: 70-90 parts of metal tailings and non-ferrous metal waste residues, 0.1-30 parts of cementing materials, 0.01-5 parts of quicklime and 0-5 parts of desulfurized gypsum.
The invention has the beneficial effects that:
in the invention, the metal tailings are parts which have low content of useful target components in products of mineral separation and sorting operation and cannot be used for production, contain a large amount of nonferrous metals such as tin, antimony, lead, zinc, silver, gold, indium and cadmium, nonmetal such as arsenic and sulfur, and have fine granularity and stable physical and chemical properties. The invention selects the metal tailings as the main raw material of the cementing material, thereby not only saving energy consumption and reducing manufacturing cost, but also improving the yield and quality of the cementing material.
The non-ferrous metal waste slag contains less useful substances, the invention recycles the non-ferrous metal waste slag to produce the gelled material, can reduce the problem of resource waste to a great extent, and in addition, the residues of metal smelting can be better recycled in the field of building engineering.
The cementing material is powder material formed by crushing and mixing clay or other raw materials in silicate industry into batch, and then crushing the batch into certain particles after high-temperature calcination. The clinker is added into the cementing material, so that the plasticity of other raw materials can be reduced, and the shrinkage of the cementing material during drying and sintering can be reduced.
The main component of the quicklime is calcium oxide which is hydrated to generate calcium hydroxide and can excite the mineral admixture to react with the calcium hydroxide to generate hydrated calcium silicate.
The desulfurized gypsum is also called flue gas desulfurization gypsum, sulfur gypsum or FGD gypsum, and has the same main component as natural gypsum, and the main component is calcium sulfate dihydrate CaSO4·2H2The content of O is more than or equal to 93 percent, compared with other gypsum powder, the desulfurized gypsum powder has the characteristics of reproducibility, small granularity, stable components, low content of harmful impurities, high purity and the like. According to the invention, the desulfurized gypsum is added into the cementing material, in the process of preparing the foam concrete, a part of desulfurized gypsum participates in the hydration reaction of cement to generate ettringite crystals, the rest desulfurized gypsum particles play a filling role of the micro-aggregate, a large number of desulfurized gypsum ultrafine particles are uniformly dispersed in the slurry to fill and refine capillary holes and pores, the pore structure of the foam concrete is improved, and the compactness of the foam concrete is improved.
Further, the metal tailings are waste discharged by a concentrating mill after grinding ores and selecting 'useful components' under specific economy; specifically, the tailings are at least one of copper tailings, iron tailings, molybdenum tailings, gold tailings, lead-zinc tailings, nickel tailings, antimony tailings, tungsten tailings, aluminum tailings, magnesium tailings, potassium tailings, nickel tailings and cobalt tailings.
The further technical scheme has the beneficial effects that waste is changed into valuable, and the waste metal tailings piled into the mountain are changed into the raw material of the special cementing material for producing the foam concrete.
Further, the non-ferrous metal slag is slag generated in smelting of non-ferrous minerals and comprises molten slag formed in pyrometallurgy and slag discharged in hydrometallurgy; specifically, the slag is at least one of copper slag, iron slag, molybdenum slag, gold slag, lead-zinc slag, nickel slag, antimony slag, tungsten slag, aluminum slag, magnesium slag, potassium slag, nickel slag and cobalt slag.
The further technical scheme has the beneficial effects that the non-ferrous metal waste residue contains irregular and multi-defect vitreous bodies, has high activity and can react with calcium hydroxide.
Further, the cementing material is cement and/or cement clinker.
The further technical scheme has the beneficial effect that the non-ferrous metal waste residue comprises SiO2、Al2O3MgO, CaO and the like can complement the gelled material, consume calcium hydroxide generated by the gelled material and play a role in reducing hydration heat.
A preparation method of a metal tailing and non-ferrous metal waste residue cementing material specifically comprises the following steps:
(1) weighing the raw materials according to the parts by weight of the metal tailings and the non-ferrous metal waste residue cementing material;
(2) mixing and grinding the metal tailings and the non-ferrous metal waste residue with clinker, quicklime and desulfurized gypsum, and sieving to obtain the metal tailings and the non-ferrous metal waste residue cementing material.
Further, in the step (2), before mixing and grinding, the metal tailings and the non-ferrous metal waste residues are dried until the water content is not more than 5%.
The beneficial effect of adopting above-mentioned further technical scheme lies in, control moisture content, reduces the process of grinding evaporation moisture.
Furthermore, in the step (2), the mesh number of the sieved mesh is more than or equal to 200 meshes.
The technical scheme has the beneficial effects that the particle size of the raw material prepared by the selected screen mesh number reduces the processing energy consumption, thereby reducing the production cost.
The invention also provides application of the metal tailings and the non-ferrous metal waste residue cementing material or the metal tailings and the non-ferrous metal waste residue cementing material prepared by the preparation method in preparation of foam concrete, bubble mixed light soil and an outer wall heat insulation material.
Further, the dosage proportion of the metal tailings and the non-ferrous metal waste residue cementing material in the foam concrete, the bubble mixed light soil and the outer wall heat-insulating material is (0-100): 1.
according to the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1. compared with the traditional foam concrete, the clinker content used by the cementing material is not more than 30 percent, and a large amount of metal tailings and non-ferrous metal waste residues accumulated into a mountain can be consumed, so that the effect of changing waste into valuable is achieved;
2. the preparation method of the cementing material is a low-cost grinding process, and can be directly used without calcination, so that the production cost is reduced;
3. the special cementing material for the foam concrete prepared by the technical scheme of the invention has low hydration heat, can be continuously constructed, and avoids the problem of low efficiency of layered construction in the traditional construction.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The metal tailings and non-ferrous metal waste residue cementing material comprises the following raw materials by weight: 75kg of copper tailings and copper slag, and 25kg of po52.5 cement;
the preparation method of the metal tailings and the non-ferrous metal waste residue cementing material specifically comprises the following steps:
(1) weighing the raw materials according to the weight of the metal tailings and the non-ferrous metal waste residue cementing material;
(2) drying the copper tailings and the copper slag until the water content is 5% to obtain a dry material;
(3) and mixing and grinding the dried material and po52.5 cement, and sieving by using a 200-mesh sieve to obtain the metal tailings and the non-ferrous metal waste residue cementing material.
Example 2
The metal tailings and non-ferrous metal waste residue cementing material comprises the following raw materials by weight: 75kg of iron tailings and iron slag, 20kg of po52.5 cement, 3.5kg of quicklime and 1.5kg of desulfurized gypsum;
the preparation method of the metal tailings and the non-ferrous metal waste residue cementing material specifically comprises the following steps:
(1) weighing the raw materials according to the weight of the metal tailings and the non-ferrous metal waste residue cementing material;
(2) drying the iron tailings and the iron slag until the water content is 5% to obtain a dry material;
(3) and mixing and grinding the dried material, po52.5 cement, quicklime and desulfurized gypsum, and sieving by a 250-mesh sieve to obtain the metal tailings and the non-ferrous metal waste residue cementing material.
Example 3
The metal tailings and non-ferrous metal waste residue cementing material comprises the following raw materials by weight: 70kg of molybdenum tailings and molybdenum slag, 27kg of cement clinker, 2kg of quicklime and 1kg of desulfurized gypsum;
the preparation method of the metal tailings and the non-ferrous metal waste residue cementing material specifically comprises the following steps:
(1) weighing the raw materials according to the weight of the metal tailings and the non-ferrous metal waste residue cementing material;
(2) drying the molybdenum tailings and the molybdenum slag until the water content is 3% to obtain a dry material;
(3) and mixing and grinding the dried material, cement clinker, quicklime and desulfurized gypsum, and sieving by using a 300-mesh sieve to obtain the metal tailings and the nonferrous metal waste residue cementing material.
Example 4
The metal tailings and non-ferrous metal waste residue cementing material comprises the following raw materials by weight: 85kg of lead-zinc tailings and lead-zinc slag, 13kg of cement clinker, 1kg of quicklime and 1kg of desulfurized gypsum;
the preparation method of the metal tailings and the non-ferrous metal waste residue cementing material specifically comprises the following steps:
(1) weighing the raw materials according to the weight of the metal tailings and the non-ferrous metal waste residue cementing material;
(2) drying the lead-zinc tailings and the lead-zinc slag until the water content is 3% to obtain a dry material;
(3) and mixing and grinding the dried material, cement clinker, quicklime and desulfurized gypsum, and sieving by a 400-mesh sieve to obtain the metal tailings and the nonferrous metal waste residue cementing material.
Performance testing
Taking the metal tailings and the non-ferrous metal waste residue cementing materials prepared in the embodiments 1-4 respectively, and preparing 400kg/m according to the mass ratio of 80:203The foam concrete test block of (1) was subjected to measurement of 7-day compressive strength and 28-day compressive strength, respectively.
The measurement results are shown in table 1.
Table 1 examples 1-4 foam concrete test blocks 7 day compressive strength and 28 day compressive strength
Measurement items | 7 day compressive strength (MPa) | 28 days compressive strength (MPa) |
Example 1 | 0.58 | 0.94 |
Example 2 | 0.60 | 1.00 |
Example 3 | 0.56 | 0.92 |
Example 4 | 0.59 | 0.98 |
As can be seen from Table 1, the compressive strength of the foam concrete test block prepared from the metal tailings and the non-ferrous metal waste residue cementing material in the examples 1 to 4 of the invention reaches the standard requirement of the foam concrete industry in both 7 days and 28 days.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The metal tailing and non-ferrous metal waste residue cementing material is characterized by comprising the following raw materials in parts by weight: 70-100 parts of metal tailings and non-ferrous metal waste residues and 0.1-30 parts of cementing materials.
2. The metal tailing and non-ferrous metal waste residue cementing material of claim 1, which is characterized by comprising the following raw materials in parts by weight: 70-100 parts of metal tailings and non-ferrous metal waste residues, 0.1-30 parts of cementing materials and 0.01-5 parts of quicklime.
3. The metal tailing and non-ferrous metal waste residue cementing material of claim 1, which is characterized by comprising the following raw materials in parts by weight: 70-90 parts of metal tailings and non-ferrous metal waste residues, 0.1-30 parts of cementing materials, 0.01-5 parts of quicklime and 0-5 parts of desulfurized gypsum.
4. The metal tailings and non-ferrous metal waste residue gelled material as claimed in any one of claims 1 to 3, wherein the metal tailings are at least one of copper tailings, iron tailings, molybdenum tailings, gold tailings, lead-zinc tailings, nickel tailings, antimony tailings, tungsten tailings, aluminum tailings, magnesium tailings, potassium tailings, nickel tailings and cobalt tailings.
5. The metal tailings and non-ferrous metal slag cementitious material as defined in any one of claims 1 to 3, wherein the non-ferrous metal slag is at least one of copper slag, iron slag, molybdenum slag, gold slag, lead-zinc slag, nickel slag, antimony slag, tungsten slag, aluminum slag, magnesium slag, potassium slag, nickel slag and cobalt slag.
6. The metal tailings and non-ferrous slag cementitious material as claimed in any one of claims 1 to 3, wherein the cementitious material is cement and/or cement clinker.
7. A preparation method of a metal tailing and non-ferrous metal waste residue cementing material is characterized by comprising the following steps:
(1) weighing the raw materials according to the parts by weight of the metal tailings and the non-ferrous metal waste residue cementing material of any one of claims 1 to 6;
(2) and mixing and grinding the metal tailings, the non-ferrous metal waste residues and the cementing material, and sieving to obtain the metal tailings and the non-ferrous metal waste residue cementing material.
8. The method for preparing the metal tailings and the non-ferrous metal waste slag cementing material according to the claim 7, wherein in the step (2), the metal tailings and the non-ferrous metal waste slag are dried until the water content is not more than 5 percent before mixing and grinding.
9. The method for preparing the metal tailings and non-ferrous metal waste residue cementing material according to the claim 7, wherein in the step (2), the mesh number of the sieved screen is more than or equal to 200 meshes.
10. Use of the metal tailings and the non-ferrous waste slag gelled material as described in any one of claims 1 to 6 or the metal tailings and the non-ferrous waste slag gelled material prepared by the preparation method as described in any one of claims 7 to 9 in preparation of foam concrete, bubble-mixed lightweight soil and exterior wall insulation materials.
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