CN107867817A - A kind of environment-protective process of effectively processing lateritic nickel ore nickel-iron smelting waste residue - Google Patents
A kind of environment-protective process of effectively processing lateritic nickel ore nickel-iron smelting waste residue Download PDFInfo
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- CN107867817A CN107867817A CN201611016932.0A CN201611016932A CN107867817A CN 107867817 A CN107867817 A CN 107867817A CN 201611016932 A CN201611016932 A CN 201611016932A CN 107867817 A CN107867817 A CN 107867817A
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- waste residue
- environment
- nickel
- iron smelting
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 239000002699 waste material Substances 0.000 title claims abstract description 71
- 238000003723 Smelting Methods 0.000 title claims abstract description 38
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 37
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000012545 processing Methods 0.000 title claims abstract description 10
- 239000000843 powder Substances 0.000 claims abstract description 47
- 239000004088 foaming agent Substances 0.000 claims abstract description 16
- 239000002154 agricultural waste Substances 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims abstract description 5
- 239000002893 slag Substances 0.000 claims description 19
- 239000002245 particle Substances 0.000 claims description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 16
- 239000012752 auxiliary agent Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 16
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 12
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 10
- 244000068988 Glycine max Species 0.000 claims description 8
- 235000010469 Glycine max Nutrition 0.000 claims description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000000292 calcium oxide Substances 0.000 claims description 8
- 235000012255 calcium oxide Nutrition 0.000 claims description 8
- 229910052918 calcium silicate Inorganic materials 0.000 claims description 8
- 235000012241 calcium silicate Nutrition 0.000 claims description 8
- JHLNERQLKQQLRZ-UHFFFAOYSA-N calcium silicate Chemical compound [Ca+2].[Ca+2].[O-][Si]([O-])([O-])[O-] JHLNERQLKQQLRZ-UHFFFAOYSA-N 0.000 claims description 8
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims description 8
- BCAARMUWIRURQS-UHFFFAOYSA-N dicalcium;oxocalcium;silicate Chemical compound [Ca+2].[Ca+2].[Ca]=O.[O-][Si]([O-])([O-])[O-] BCAARMUWIRURQS-UHFFFAOYSA-N 0.000 claims description 8
- 239000003921 oil Substances 0.000 claims description 8
- 229910021534 tricalcium silicate Inorganic materials 0.000 claims description 8
- 235000019976 tricalcium silicate Nutrition 0.000 claims description 8
- 235000017060 Arachis glabrata Nutrition 0.000 claims description 5
- 244000105624 Arachis hypogaea Species 0.000 claims description 5
- 235000010777 Arachis hypogaea Nutrition 0.000 claims description 5
- 235000018262 Arachis monticola Nutrition 0.000 claims description 5
- 235000010627 Phaseolus vulgaris Nutrition 0.000 claims description 5
- 244000046052 Phaseolus vulgaris Species 0.000 claims description 5
- 239000000395 magnesium oxide Substances 0.000 claims description 5
- 235000020232 peanut Nutrition 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 240000008042 Zea mays Species 0.000 claims description 4
- 235000016383 Zea mays subsp huehuetenangensis Nutrition 0.000 claims description 4
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 4
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 235000009973 maize Nutrition 0.000 claims description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 4
- 238000001556 precipitation Methods 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 238000007711 solidification Methods 0.000 claims description 4
- 230000008023 solidification Effects 0.000 claims description 4
- 239000010902 straw Substances 0.000 claims description 4
- 239000004408 titanium dioxide Substances 0.000 claims description 4
- 239000005909 Kieselgur Substances 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 125000003636 chemical group Chemical group 0.000 claims 1
- 239000004035 construction material Substances 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 229910000863 Ferronickel Inorganic materials 0.000 description 5
- 239000002956 ash Substances 0.000 description 5
- 239000000470 constituent Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 239000004567 concrete Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000000505 pernicious effect Effects 0.000 description 2
- 125000001997 phenyl group Chemical class [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 241001614291 Anoplistes Species 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011504 laterite Substances 0.000 description 1
- 229910001710 laterite Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- WWNBZGLDODTKEM-UHFFFAOYSA-N sulfanylidenenickel Chemical compound [Ni]=S WWNBZGLDODTKEM-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- 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
-
- 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00025—Aspects relating to the protection of the health, e.g. materials containing special additives to afford skin protection
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
-
- 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
- C04B2111/40—Porous or lightweight materials
-
- 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
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
-
- 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)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention belongs to environmental technology field, discloses a kind of environment-protective process of effectively processing lateritic nickel ore nickel-iron smelting waste residue, it comprises the following steps：Step 1）Prepare waste residue fine powder, step 2）Prepare waste residue coarse powder, step 3）Handle agricultural wastes, step 4）Prepare foaming agent, step 5）Stirring, cast, the demoulding and insulation.Present invention process has maximally utilised waste residue, and is prepared for construction material, and realizing turns waste into wealth.
Description
Technical field
The invention belongs to environmental technology field, is related to a kind of environmentally friendly work of effectively processing lateritic nickel ore nickel-iron smelting waste residue
Skill.
Background technology
The surface weathering shell mineral deposit that lateritic nickel ore resource is formed for nickel sulfide ore Weathering Zones of Igneous Rock-leaching-deposition, the world
Upper lateritic nickel ore is distributed in the tropic countries within 30 degree of equatorial line north and south, and integrated distribution is in the circum pacific torrid zone-subtropical zone
Area, mainly have：Cuba, the Brazil in America；Indonesia, the Philippine in Southeast Asia；Oceanian Australia, Xin Kali
More Buddhist nun Asias, Papua New Guinea etc..70% concentrates on Gansu in China's nickel ore resource reserves, next be distributed in Xinjiang, Yunnan,
Jilin, Sichuan, Shaanxi and Qinghai and 7, Hubei province, total reserves account for the 27% of national nickel resources gross reserves.Lateritic nickel ore
Nickel-iron smelting, ore is typically passed sequentially through into the equipment such as blast furnace, converter, refining furnace, finally obtains metal product.Laterite nickel
Ore deposit nickel-iron smelting can produce substantial amounts of waste residue, and 2015, the total release of ferronickel slag was close to 100,000,000 tons, more than copper ashes, manganese slag etc.
The total emission volumn of metallurgical slag, account for 1/5th of metallurgical slag total release.Compared with other metallurgical slags, the valuable gold of ferronickel slag
Belong to a great problem that recovery value is low, and bed drain purge is big, has progressively been handled as metallurgical slag.The heap of a large amount of electrosmelting ferronickel slags
Put and fill, not only land occupation, pollution environment, the sustainable development for returning nickel-iron smelting brings severe challenge.So ferronickel
Smelting industry is badly in need of to solve the comprehensive utilizating research that the open circuit problem of nickel-iron smelting slag carries out scientific system.Nickel-iron smelting is discarded
The comprehensive utilizating research of slag, by for innoxious, the recycling treatment of the substantial amounts of nickel-iron smelting castaway slag in the nationwide or even whole world
Solid foundation is provided.
Latter stage in last century, Japan, Russia etc., country had begun to the recycling of waste residue, mainly cement raw material,
Concrete material and glass etc.；Studies in China is relative to start late, and is also beginning to correlative study in recent years, is focusing mostly on
In terms of building materials；Waste residue is prepared mineral wool fibres by applicant early stage, achieves certain effect, but product is relatively single,
Waste residue is easily caused to overstock.The characteristics of due to waste residue chemical constituent itself, magnesium high calcium is low to cause that activity is low, stability is poor, intensity
Do not reach the requirement of construction material with gelling performance, how to make improvements processing, improve the addition of waste residue, fully realize
Twice laid is our technical issues that need to address.
The content of the invention
For overcome the deficiencies in the prior art, the invention provides a kind of effectively processing lateritic nickel ore nickel-iron smelting waste residue
Environment-protective process, the technique has maximally utilised waste residue, and is prepared for construction material, and realizing turns waste into wealth.
The present invention is realized by following scheme：
A kind of environment-protective process of effectively processing lateritic nickel ore nickel-iron smelting waste residue, it comprises the following steps：Step 1）Prepare waste residue
Fine powder, step 2）Prepare waste residue coarse powder, step 3）Handle agricultural wastes, step 4）Prepare foaming agent, step 5）Stir, pour
Note, the demoulding and insulation.
Specifically, the environment-protective process comprises the following steps：
Step 1）Prepare waste residue fine powder：Lateritic nickel ore nickel-iron smelting waste residue is passed through into crusher in crushing, is then sent to ball mill, is ground
To the waste residue fine powder that particle diameter is 200-300 mesh, auxiliary agent is wherein added in ball mill, addition is lateritic nickel ore nickel-iron smelting waste residue
The one thousandth of quality；The auxiliary agent is by tricalcium silicate：Dicalcium silicate：Soya-bean oil is according to 1:1:2 mass ratio mixes；
Step 2）Prepare waste residue coarse powder：Lateritic nickel ore nickel-iron smelting waste residue is passed through into crusher in crushing, is then sent to ball mill, is ground
To the waste residue coarse powder that particle diameter is 50-100 mesh, auxiliary agent is wherein added in ball mill, addition is lateritic nickel ore nickel-iron smelting waste residue
The one thousandth of quality；The auxiliary agent is by tricalcium silicate：Dicalcium silicate：Soya-bean oil is according to 1:1:2 mass ratio mixes；
Step 3）Handle agricultural wastes：By maize straw and peanut shell according to 2:1 mass ratio is put into pulverizer, is crushed
Into particle diameter in 50-100 mesh powders；
Step 4）Prepare foaming agent：Dregs of beans is dipped into 10min in the 5M hydrochloric acid solutions of double weight, then 500rpm is centrifuged
3min, precipitation is collected, drying, 100 mesh powders is then ground to, produces foaming agent；
Step 5）Stirring, cast, the demoulding and insulation：By waste residue fine powder, waste residue coarse powder, step 3）Gained powder, foaming agent, silicon
Diatomaceous earth, quick lime, land plaster and water are according to 10-15:10-15:12-18:2-3:2-3:5-9:20-30:30-50 mass ratio
Put into successively in mixer, 500rpm stirring 3min, be then injected into mould and pour into sheet material, taken off after sheet material solidification
Mould, temperature is finally placed in as 80 DEG C, 6-8 hours in the hygrothermal environment that humidity is 80%, takes out, produces ash wall body plate.
Preferably, the particle diameter of the diatomite and land plaster is 50-100 mesh.
Preferably, the chemical constituent of the lateritic nickel ore nickel-iron smelting waste residue is according to percentage by weight：Magnesia 32%,
Silica 53%, the iron 8% of titanium dioxide two, aluminum oxide 4%, calcium oxide 1.6%, other 1.4%.
The beneficial effect that the present invention obtains is primarily but not limited to the following aspects：
The present invention uses lateritic nickel ore nickel-iron smelting waste residue as raw material, not only reduces the use of other raw materials, saves the energy, also
Slag effectively is utilized, resource utilization is improved and preserves the ecological environment, being truly realized turns waste into wealth；Lateritic nickel ore ferronickel smelting
The presence of a large amount of magnesia reduces the gelling performance of material in refining waste residue, and the present invention to slag by being ground to 200 mesh
Fine powder above so that the grain composition of mixing material can be increased close to closest packing state, intensity, and microstructure also can
Improved；Applicant further found that the ratio of the big particle diameter slag powder of suitable control, the performance of sheet material can't be reduced, but also
Energy consumption can be reduced；Ball-milling additive can both improve grinding efficiency, can also improve rate of set to a certain extent；The present invention
The agricultural residues such as stalk and peanut shell are used, raw material sources are extensive, and cost is cheap；Present invention selection dregs of beans is as foaming
Agent, foaming effect is good, reduces cost；Sheet material of the present invention can be used as wall board, and each material combination is reasonable, and synergy is strong,
Mechanical performance, heat-insulating property and fire resistance are preferable, do not contain any formaldehyde and benzene class pernicious gas, environment friendly and pollution-free；This
Inventive method operating procedure is simple, less demanding to former, and energy consumption is relatively low, is adapted to industrialized production.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the application, have below in conjunction with the application
Body embodiment, the present invention is more clearly and completely described, it is clear that described embodiment is only the application one
Divide embodiment, rather than whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making
The every other embodiment obtained under the premise of creative work, should all belong to the scope of protection of the invention.
Embodiment 1
A kind of environment-protective process of effectively processing lateritic nickel ore nickel-iron smelting waste residue, it comprises the following steps：
Step 1）Prepare waste residue fine powder：Lateritic nickel ore nickel-iron smelting waste residue is passed through into crusher in crushing, is then sent to ball mill, is ground
To the waste residue fine powder that particle diameter is 200 mesh, auxiliary agent is wherein added in ball mill, addition is lateritic nickel ore nickel-iron smelting slag quality
One thousandth；The auxiliary agent is by tricalcium silicate：Dicalcium silicate：Soya-bean oil is according to 1:1:2 mass ratio mixes；
Step 2）Prepare waste residue coarse powder：Lateritic nickel ore nickel-iron smelting waste residue is passed through into crusher in crushing, is then sent to ball mill, is ground
To the waste residue coarse powder that particle diameter is 50 mesh, auxiliary agent is wherein added in ball mill, addition is lateritic nickel ore nickel-iron smelting slag quality
One thousandth；The auxiliary agent is by tricalcium silicate：Dicalcium silicate：Soya-bean oil is according to 1:1:2 mass ratio mixes；
Step 3）Handle agricultural wastes：By maize straw and peanut shell according to 2:1 mass ratio is put into pulverizer, is crushed
Into particle diameter in 50 mesh powders；
Step 4）Prepare foaming agent：Dregs of beans is dipped into 10min in the 5M hydrochloric acid solutions of double weight, then 500rpm is centrifuged
3min, precipitation is collected, drying, 100 mesh powders is then ground to, produces foaming agent；
Step 5）By waste residue fine powder, waste residue coarse powder, step 3）Gained powder, foaming agent, diatomite, quick lime, land plaster and
Water is according to 10:10:12:2:2:5:20:30 mass ratio is put into mixer successively, 500rpm stirring 3min, is then injected into
Sheet material is poured into mould, is stripped after sheet material solidification, is finally placed in temperature as 80 DEG C, humidity is in 80% hygrothermal environment
6 hours, take out, produce ash wall body plate.
The particle diameter of the diatomite and land plaster is 100 mesh.The chemical constituent of the lateritic nickel ore nickel-iron smelting waste residue
It is according to percentage by weight：Magnesia 32%, silica 53%, the iron 8% of titanium dioxide two, aluminum oxide 4%, calcium oxide 1.6% are other
1.4%。
Embodiment 2
A kind of environment-protective process of effectively processing lateritic nickel ore nickel-iron smelting waste residue, it comprises the following steps：
Step 1）Prepare waste residue fine powder：Lateritic nickel ore nickel-iron smelting waste residue is passed through into crusher in crushing, is then sent to ball mill, is ground
To the waste residue fine powder that particle diameter is 300 mesh, auxiliary agent is wherein added in ball mill, addition is lateritic nickel ore nickel-iron smelting slag quality
One thousandth；The auxiliary agent is by tricalcium silicate：Dicalcium silicate：Soya-bean oil is according to 1:1:2 mass ratio mixes；
Step 2）Prepare waste residue coarse powder：Lateritic nickel ore nickel-iron smelting waste residue is passed through into crusher in crushing, is then sent to ball mill, is ground
To the waste residue coarse powder that particle diameter is 100 mesh, auxiliary agent is wherein added in ball mill, addition is lateritic nickel ore nickel-iron smelting slag quality
One thousandth；The auxiliary agent is by tricalcium silicate：Dicalcium silicate：Soya-bean oil is according to 1:1:2 mass ratio mixes；
Step 3）Handle agricultural wastes：By maize straw and peanut shell according to 2:1 mass ratio is put into pulverizer, is crushed
Into particle diameter in 100 mesh powders；
Step 4）Prepare foaming agent：Dregs of beans is dipped into 10min in the 5M hydrochloric acid solutions of double weight, then 500rpm is centrifuged
3min, precipitation is collected, drying, 100 mesh powders is then ground to, produces foaming agent；
Step 5）By waste residue fine powder, waste residue coarse powder, step 3）Gained powder, foaming agent, diatomite, quick lime, land plaster and
Water is according to 15:15:18:3:3:9:30:50 mass ratio is put into mixer successively, 500rpm stirring 3min, is then injected into
Sheet material is poured into mould, is stripped after sheet material solidification, is finally placed in temperature as 80 DEG C, humidity is in 80% hygrothermal environment
8 hours, take out, produce ash wall body plate.
The particle diameter of the diatomite and land plaster is 100 mesh.The chemical constituent of the lateritic nickel ore nickel-iron smelting waste residue
It is according to percentage by weight：Magnesia 32%, silica 53%, the iron 8% of titanium dioxide two, aluminum oxide 4%, calcium oxide 1.6% are other
1.4%。
Embodiment 3
The performance test for the ash wall body plate that the present invention is prepared using waste residue：
1 group of embodiment；2 groups of embodiment；Control group 1：With embodiment 1, difference is to change waste residue coarse powder into fine powder；Control group 2：
With embodiment 1, agricultural wastes are not added.
Performance parameter experiment detection is carried out to above-mentioned each group, by taking thickness 2cm sheet materials as an example：Concrete outcome is shown in Table 1.
Table 1
| Parameter index | Embodiment 1 | Embodiment 2 | Control group 1 | Control group 2 |
| Compression strength Mpa | 16.53 | 17.21 | 16.79 | 16.38 |
| Fire resistance | A1 | A1 | A1 | A1 |
| Water absorption rate % | 0.37 | 0.41 | 0.38 | 0.34 |
| Thermal conductivity factor W/ (m.K) | 0.049 | 0.043 | 0.051 | 0.057 |
| Bulk density g/cm3 | 1.63 | 1.71 | 1.64 | 1.75 |
| The pernicious gas such as formaldehyde and benzene class | Do not detect | Do not detect | Do not detect | Do not detect |
Conclusion：Sheet material various aspects of performance of the present invention is preferable, better than commercial like product, realizes the recycling of waste residue；Pass through
Above-mentioned comparative test finds, increase waste residue fine powder content can't larger raising plate property, and appropriate agricultural wastes
Addition will not also change plate property.
Finally, it is also necessary to it is noted that listed above is only several specific embodiments of the invention.Obviously, the present invention not
It is limited to above example, there can also be many deformations.One of ordinary skill in the art can be direct from present disclosure
All deformations for exporting or associating, are considered as protection scope of the present invention.
Claims (4)
1. a kind of environment-protective process of effectively processing lateritic nickel ore nickel-iron smelting waste residue, it comprises the following steps：Step 1）Prepare useless
Slag fine powder, step 2）Prepare waste residue coarse powder, step 3）Handle agricultural wastes, step 4）Prepare foaming agent, step 5）Stir, pour
Note, the demoulding and insulation.
2. environment-protective process according to claim 1, it is characterised in that the environment-protective process comprises the following steps：
Step 1）Prepare waste residue fine powder：Lateritic nickel ore nickel-iron smelting waste residue is passed through into crusher in crushing, is then sent to ball mill, is ground
To the waste residue fine powder that particle diameter is 200-300 mesh, auxiliary agent is wherein added in ball mill, addition is lateritic nickel ore nickel-iron smelting waste residue
The one thousandth of quality；The auxiliary agent is by tricalcium silicate：Dicalcium silicate：Soya-bean oil is according to 1:1:2 mass ratio mixes；
Step 2）Prepare waste residue coarse powder：Lateritic nickel ore nickel-iron smelting waste residue is passed through into crusher in crushing, is then sent to ball mill, is ground
To the waste residue coarse powder that particle diameter is 50-100 mesh, auxiliary agent is wherein added in ball mill, addition is lateritic nickel ore nickel-iron smelting waste residue
The one thousandth of quality；The auxiliary agent is by tricalcium silicate：Dicalcium silicate：Soya-bean oil is according to 1:1:2 mass ratio mixes；
Step 3）Handle agricultural wastes：By maize straw and peanut shell according to 2:1 mass ratio is put into pulverizer, is crushed
Into particle diameter in 50-100 mesh powders；
Step 4）Prepare foaming agent：Dregs of beans is dipped into 10min in the 5M hydrochloric acid solutions of double weight, then 500rpm is centrifuged
3min, precipitation is collected, drying, 100 mesh powders is then ground to, produces foaming agent；
Step 5）Stirring, cast, the demoulding and insulation：By waste residue fine powder, waste residue coarse powder, step 3）Gained powder, foaming agent, silicon
Diatomaceous earth, quick lime, land plaster and water are according to 10-15:10-15:12-18:2-3:2-3:5-9:20-30:30-50 mass ratio
Put into successively in mixer, 500rpm stirring 3min, be then injected into mould and pour into sheet material, taken off after sheet material solidification
Mould, temperature is finally placed in as 80 DEG C, 6-8 hours in the hygrothermal environment that humidity is 80%, takes out, produces ash wall body plate.
3. environment-protective process according to claim 1, it is characterised in that preferably, the particle diameter of the diatomite and land plaster
It is 50-100 mesh.
4. environment-protective process according to claim 1, it is characterised in that the chemical group of the lateritic nickel ore nickel-iron smelting waste residue
Divide according to percentage by weight and be：Magnesia 32%, silica 53%, the iron 8% of titanium dioxide two, aluminum oxide 4%, calcium oxide 1.6%, its
It 1.4%.
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