CN110218099A - A kind of method that nickel fibers high-temperature slag prepares magnetic hollow ceramic microsphere - Google Patents
A kind of method that nickel fibers high-temperature slag prepares magnetic hollow ceramic microsphere Download PDFInfo
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- CN110218099A CN110218099A CN201910638435.1A CN201910638435A CN110218099A CN 110218099 A CN110218099 A CN 110218099A CN 201910638435 A CN201910638435 A CN 201910638435A CN 110218099 A CN110218099 A CN 110218099A
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- slag
- hollow ceramic
- temperature
- magnetic hollow
- ceramic microsphere
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- 239000002893 slag Substances 0.000 title claims abstract description 107
- 239000000919 ceramic Substances 0.000 title claims abstract description 96
- 239000004005 microsphere Substances 0.000 title claims abstract description 87
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 35
- 239000000835 fiber Substances 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000005415 magnetization Effects 0.000 claims abstract description 50
- 239000000654 additive Substances 0.000 claims abstract description 39
- 230000000996 additive effect Effects 0.000 claims abstract description 39
- 238000002360 preparation method Methods 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 7
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 6
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052742 iron Inorganic materials 0.000 claims abstract description 4
- 229910052802 copper Inorganic materials 0.000 claims abstract description 3
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 3
- 238000007664 blowing Methods 0.000 claims description 18
- 239000007789 gas Substances 0.000 claims description 15
- 239000000843 powder Substances 0.000 claims description 15
- 239000005997 Calcium carbide Substances 0.000 claims description 11
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 claims description 11
- 235000019738 Limestone Nutrition 0.000 claims description 10
- 238000000227 grinding Methods 0.000 claims description 10
- 239000006028 limestone Substances 0.000 claims description 10
- 239000007921 spray Substances 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 5
- 238000004064 recycling Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 claims description 3
- QPLDLSVMHZLSFG-UHFFFAOYSA-N CuO Inorganic materials [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- 238000009835 boiling Methods 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- 229910052681 coesite Inorganic materials 0.000 claims description 2
- 229910052906 cristobalite Inorganic materials 0.000 claims description 2
- 238000010891 electric arc Methods 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 229910052682 stishovite Inorganic materials 0.000 claims description 2
- 229910052905 tridymite Inorganic materials 0.000 claims description 2
- 239000002918 waste heat Substances 0.000 claims description 2
- 229910001111 Fine metal Inorganic materials 0.000 claims 1
- 239000011805 ball Substances 0.000 claims 1
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 150000004706 metal oxides Chemical class 0.000 claims 1
- 239000011806 microball Substances 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 abstract 1
- 239000000292 calcium oxide Substances 0.000 abstract 1
- INPLXZPZQSLHBR-UHFFFAOYSA-N cobalt(2+);sulfide Chemical compound [S-2].[Co+2] INPLXZPZQSLHBR-UHFFFAOYSA-N 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 239000000395 magnesium oxide Substances 0.000 abstract 1
- 230000005389 magnetism Effects 0.000 abstract 1
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 abstract 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 abstract 1
- 229910001948 sodium oxide Inorganic materials 0.000 abstract 1
- 229920006395 saturated elastomer Polymers 0.000 description 15
- 239000000463 material Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000005234 chemical deposition Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241001417490 Sillaginidae Species 0.000 description 1
- 235000006754 Taraxacum officinale Nutrition 0.000 description 1
- 240000001949 Taraxacum officinale Species 0.000 description 1
- 235000005187 Taraxacum officinale ssp. officinale Nutrition 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003113 dilution method Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- -1 fusing Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002689 soil 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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
-
- 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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/138—Waste materials; Refuse; Residues from metallurgical processes, e.g. slag, furnace dust, galvanic waste
-
- 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
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/95—Products characterised by their size, e.g. microceramics
-
- 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
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Abstract
The present invention relates to a kind of preparations of the magnetic hollow ceramic microsphere of low-density and high-strength, the magnetic hollow ceramic microsphere is prepared online by nickel fibers high-temperature slag, in slag containing silica, ferrous oxide, magnesia, sodium oxide molybdena, calcium oxide and iron, copper, nickel, cobalt sulfide.The present invention is using it as primary raw material, slag temperature is adjusted when slagging tap, additive and nickel fibers high-temperature slag are sprayed with the supersonic airstream that Laval nozzle generates compressed air, refrigerated separation obtains partial size 12-30um hollow ceramic microspheres, so that hollow ceramic microspheres is had magnetism through magnetization treatment.The present invention is to make full use of high temperature nickel slag with simple process, efficient, energy-efficient method, the method for preparing high-strength low-density magnetic hollow ceramic microsphere.
Description
Technical field
The invention belongs to Metallurgical resources recycling and inorganic non-metallic technical field of function materials, and in particular to a kind of nickel smelting
The method that refining slag prepares magnetic hollow magnetic microsphere.
Technical background
China's nickel yield increases year by year, and a large amount of nickel fibers slag is generated in smelting process, at present using heap after water quenching
It deposits or on a small quantity for producing cement.A large amount of stockpilings can generate very big pollution, another aspect high-temperature fusion to air and water, soil
Amount of heat present in slag causes the waste of thermal energy, increases carbon emission.Using high-temperature slag produce high value added product for
Pollution is eliminated, reduces carbon emission, increasing economic efficiency is that should solve the problems, such as at present.Hollow ceramic microspheres are that a kind of have
The advantages that grain fine, hollow, light, high temperature resistant.Tiny balloon is because surface area is big, low-density, be easily dispersed, morphology controllable etc. is excellent
Point can be used as suction after being widely used in sewage purification, catalyst, the carrier of catalyst, nano-reactor, magnetisable material deposition
Wave material is widely used.But production hollow ceramic microspheres substantially use the material handled through preamble to be blown at present.
It does a lot of work in nickel fibers high-temperature slag use aspects, wherein the related patents applied have
CN201811494953、CN201811210809、CN201811163423、CN201811008212、CN201810378535、
CN201711168552、CN201810589147、CN201810638116、CN201810742161、CN201810756738、
CN201810228728 systems, color environmental protection brick, sand concrete processed, oil well water-impervious well cementation test block, valuable constituent element synthetical recovery
Using, it is nickel slag dilution method, absorbing material, clinker, non-burning brick etc., be in the cooling state recycling of slag or to utilize mostly, only
It is to be carried out in high temperature fused state on a small quantity, the thermal energy of molten state slag is caused to be wasted.
In terms of ceramic hollow microspheres preparation, the patent of domestic applications has 200810138749.7,
2011201110145156.5,201510061293.5 etc..It needs the works such as ingredient, fusing, water quenching when preparing ceramic microsphere
Sequence, the raw material for preparing ceramic hollow microspheres are needed in 1500-1600 DEG C of remelting, and energy consumption is higher, microspherulite diameter variation range
Greatly, microballoon intensity, the density variation of different-grain diameter are larger, institute's ceramic hollow microspheres obtained property in practical applications in this way
It can be not easy to control.
Above-mentioned patent from nickel slag using having carried out a large amount of exploratory development on, ceramic microsphere preparation principle and technology of preparing,
Make some progress, but have the following problems in various degree in these preparation methods: 1. high-temperature slag recuperations of heat are few, the energy
Waste is serious.2. most of product will consume a large amount of energy in the preparation, high production cost, added value of product is lower.3. system
The raw material of standby tiny balloon needs remelting or solid-state to handle, and when preparation needs to grind.4. needing to consume fuel when blowing, raw material
Granule partial or whole refuses, need reheating to consume fuel, increase carbon emission amount, generate pollution to environment.5. former
Material will reach that consistent granularity is relatively difficult when grinding, and the partial size difference of microballoon is larger.6. magnetized hollow ceramic in order to obtain
Microballoon will have magnetic substance after obtaining hollow ceramic microspheres again and be deposited onto hollow ceramic through the method for chemical deposition
The surface of microballoon.7. chemical deposition process is complicated, while magnetic deposit cohesive force is lower, and deposition is uneven, easy to fall off, performance
It is unstable, increase cost further, industrialization promotion is difficult.Nickel fibers high-temperature slag is utilized for high-efficiency environment friendly, simultaneously
High added value is obtained, the hollow ceramic ball that a kind of nickel fibers high-temperature slag prepares high-strength low-density is researched and developed, from energy conservation, is reduced
It pollutes, develop environmentally protective metallurgy as problem in the urgent need to address.
Summary of the invention
The present invention is directed to the deficiency of above-mentioned prior art, provides a kind of energy-efficient, magnetic using the preparation of nickel fibers slag
The method of hollow ceramic microspheres.
The present invention is a kind of method that nickel fibers slag prepares magnetic hollow magnetic microsphere, it is characterised in that includes following step
It is rapid:
(1) using nickel fibers slag as raw material, temperature is adjusted before being blown after nickel slag is come out of the stove；
(2) gas will be generated with gas and adjust viscosity coefficient of dross simultaneously, and the additive with forming core effect sprays together with slag；
(3) generating the spray tip that supersonic airstream uses is Laval nozzle, and lance outlet gas is made to reach supersonic speed；
(4) by residual heat using device after ejection, the ceramic microsphere of ejection is cooling；
(5) hollow ceramic microspheres, solid ceramic microballoon, fine other oxides are separated with roto-clone separator；
(6) hollow ceramic microspheres are subjected to magnetization treatment.
The invention has the advantages that industrial residue, pollutant are converted high value added product by 1. present invention, advantageously reduce
Environmental pollution, production process simplify.2. the raw material that the present invention uses is nickel fibers slag, it the advantage is that nickel fibers process to original
Material has carried out sufficient heating hybrid reaction, and ingredient is uniform, and temperature is high, reduces secondary smelting, levigate raw material, is blown consumption
Energy reduces carbon emission.3. the high-temperature fusion raw material that the present invention uses, using external forming core, the inside and outside method shape for generating gas
At hollow ceramic ball, sulfide, the phosphide of the various metals in slag can be used as interior angry body and form hollow ceramic ball
Gas source.4. the present invention passes through the temperature of fixed computer heating control slag, it is ensured that blow ball temperature and stablize.5. spray tip uses Bearing score
That nozzle, makes lance outlet gas reach supersonic speed.6. the present invention utilizes industrial slag, process flow is short, consuming little energy, effect
Rate is high, is easy to nearest scale processing and smelts slag.
Detailed description of the invention
Fig. 1 is the process flow chart that the present invention prepares magnetic hollow ceramic microsphere；Fig. 2 is that magnetic hollow ceramic microsphere is made
SEM figure.
Specific embodiment
A kind of method that nickel fibers slag prepares magnetic hollow magnetic microsphere, as shown in Figure 1, the steps include:
(1) using nickel fibers slag as raw material, adjustment slag temperature is between 1450-1500 DEG C before being blown after nickel slag is come out of the stove；
(2) viscosity coefficient of dross will be adjusted with gas and there is the additive of forming core effect to spray together with slag；
(3) spray tip that supersonic airstream uses is Laval nozzle, and lance outlet gas is made to reach supersonic speed；
(4) by residual heat using device after ejection, the ceramic microsphere of ejection is cooling；
(5) hollow ceramic microspheres, solid ceramic microballoon, fine other oxides are separated with roto-clone separator；
(6) hollow ceramic microspheres are subjected to magnetization treatment；
(7) the solid ceramic microballoon of recycling, thin dirt is used for other purposes are used or thin dirt returns to main system.
Wherein the nickel fibers slag of step (1) refers to produces in the nickel fibers modes such as flash speed furnace, synthetic furnace, oxygen-enriched top blowing furnace
Raw slag, ingredient include SiO2, MgO, FeO, CaO, CuO and Fe, Cu, Co, Ni sulfide；SiO in nickel slag2Quality
Percentage composition is 32-36%, and the mass percentage of Fe is 33-40%, and the mass percentage of MgO is 5-10%, the quality of CaO
Percentage composition is 1-3%, and the metals such as the nickel containing different number, cobalt, sodium.
Wherein the slag heating of step (1) uses electric arc furnaces, burnt gas reverberatory furnace, and slag temperature is controlled at 1450-1500 DEG C.
Wherein additive includes calcium carbide powder, calcium carbonate in step (2), and partial size is in 10-50um when use, 10:1- according to the ratio
1:10 mixing is added or is individually added into, and additional amount is in 0-10%.
Wherein the spray gun supply gas pressure of step (3) is 0.6-1.0MPa, and compressed air goes out spray gun by Laval nozzle
Gas reaches supersonic speed, the amount of blowing gas slag air demand 60-100Nm per ton3。
Wherein step (4) is using residual heat using device recovery waste heat and cooling microballoon.
Wherein the hollow ceramic microspheres separation of step (5) uses roto-clone separator.
Wherein it is heated in the fixed heating furnace of the magnetization treatment oxidizing atmosphere of step (6), rotary kiln or boiling heating furnace
500-950 DEG C, heating time is in 60-180 min.
Wherein the solid ceramic microballoon, thin dirt of step (7) are used for other purposes or thin dirt returns to main system.
The present invention is further spread out with embodiment below.
Embodiment 1:
1) adjustment slag temperature is to 1450 DEG C；
2) additive and slag being blown by spray gun, the gas for being blown additive and slag is compressed air, pressure 0.6MPa,
Slag air demand 60Nm per ton3；
3) ratio of calcium carbide and lime stone is 1:1 in additive, and through mix grinding partial size 10um, additive supply amount is slag amount
1%；
4) it is separated through roto-clone separator, obtains hollow ceramic microspheres, 60% or more the balling ratio of hollow ceramic microspheres；
5) it) is handled through 500 DEG C of magnetizations, magnetization handles 180 min of time；
The outer diameter of gained magnetic hollow ceramic microsphere is 12-25um, and magnetic hollow microballoon wall thickness about 0.5-1um saturated magnetization is strong
Degree is 40emu/g.
Embodiment 2:
1) adjustment slag temperature is to 1460 DEG C；
2) by lance ejection additive powder and slag, blowing pressurized air pressure is 0.7MPa, slag air demand per ton
70Nm3；
3) ratio of calcium carbide and lime stone is 1:5 in additive, and through mix grinding partial size 25um, additive supply amount is slag amount
5%；
4) it is separated through roto-clone separator, obtains hollow ceramic microspheres, 65% or more the balling ratio of hollow ceramic microspheres；
5) it is handled through 600 DEG C of magnetizations, magnetization handles 160 min of time；
The outer diameter of gained magnetic hollow ceramic microsphere is 12-25um, and magnetic hollow microballoon wall thickness about 0.5-1um saturated magnetization is strong
Degree is 50emu/g.
Embodiment 3:
1) adjustment slag temperature is to 1470 DEG C；
2) by lance ejection additive powder and slag, blowing pressurized air pressure is 0.8MPa, slag air demand per ton
70Nm3；
3) ratio of calcium carbide and lime stone is 1:10 in additive, and through mix grinding partial size 50um, additive supply amount is slag amount
10%；
4) it is separated through roto-clone separator, obtains hollow ceramic microspheres, 70% or more the balling ratio of hollow ceramic microspheres；
5) it is handled through 700 DEG C of magnetizations, magnetization handles 140 min of time；
The outer diameter of gained magnetic hollow ceramic microsphere is 12-25um, magnetic hollow microballoon wall thickness about 0.5-0.8um saturated magnetization
Intensity is 60emu/g.
Embodiment 4:
1) adjustment slag temperature is to 1480 DEG C；
2) by lance ejection additive powder and slag, blowing pressurized air pressure is 0.9MPa, slag air demand per ton
80Nm3；
3) ratio of calcium carbide and lime stone is 10:1 in additive, and through mix grinding partial size 10um, additive supply amount is slag amount
1%；
4) it is separated through roto-clone separator, obtains hollow ceramic microspheres, 80% or more the balling ratio of hollow ceramic microspheres；
5) it is handled through 800 DEG C of magnetizations, magnetization handles 120 min of time；
The outer diameter of gained magnetic hollow ceramic microsphere is 15-30um, magnetic hollow microballoon wall thickness about 0.6-0.9um saturated magnetization
Intensity is 60emu/g.
Embodiment 5:
1) adjustment slag temperature is to 1490 DEG C；
2) by lance ejection additive powder and slag, blowing pressurized air pressure is 1.0MPa, slag air demand per ton
80Nm3；
3) ratio of calcium carbide and lime stone is 10:5 in additive, and through mix grinding partial size 30um, additive supply amount is slag amount
5%；
4) it is separated through roto-clone separator, obtains hollow ceramic microspheres, 60% or more the balling ratio of hollow ceramic microspheres；
5) it is handled through 950 DEG C of magnetizations, magnetization handles 100 min of time；
The outer diameter of gained magnetic hollow ceramic microsphere is 12-25um, magnetic hollow microballoon wall thickness about 0.5-0.9um saturated magnetization
Intensity is 55emu/g.
Embodiment 6:
1) adjustment slag temperature is to 1500 DEG C；
It 2) is 0.6MPa, slag air demand per ton by lance ejection additive powder and slag blowing pressurized air pressure
70Nm3；
3) ratio of calcium carbide and lime stone is 1:1 in additive, and through mix grinding partial size 50um, additive supply amount is slag amount
10%；
4) it is separated through roto-clone separator, obtains hollow ceramic microspheres, 60% or more the balling ratio of hollow ceramic microspheres；
5) it is handled through 950 DEG C of magnetizations, magnetization handles 60 min of time；
The outer diameter of gained magnetic hollow ceramic microsphere is 12-22um, and magnetic hollow microballoon wall thickness about 0.6-1um saturated magnetization is strong
Degree is 60emu/g.
Embodiment 7:
1) adjustment slag temperature is to 1495 DEG C；
2) by lance ejection additive powder and slag, blowing pressurized air pressure is 0.8MPa, slag air demand per ton
80Nm3；
3) calcium carbide is added, ground partial size 50um, additive supply amount is the 1% of slag amount；
4) it is separated through roto-clone separator, obtains hollow ceramic microspheres, 60% or more the balling ratio of hollow ceramic microspheres；
5) it is handled through 800 DEG C of magnetizations, magnetization handles 80 min of time；
The outer diameter of gained magnetic hollow ceramic microsphere is 15-25um, and magnetic hollow microballoon wall thickness about 0.5-1um saturated magnetization is strong
Degree is 45emu/g.
Embodiment 8:
1) adjustment slag temperature is to 1485 DEG C；
2) by lance ejection additive powder and slag, blowing pressurized air pressure is 0.8MPa, slag air demand per ton
90Nm3；
3) calcium carbide is added, ground partial size 30um, additive supply amount is the 5% of slag amount；
4) it is separated through roto-clone separator, obtains hollow ceramic microspheres, 65% or more the balling ratio of hollow ceramic microspheres；
5) it is handled through 750 DEG C of magnetizations, magnetization handles 100 min of time；
The outer diameter of gained magnetic hollow ceramic microsphere is 15-25um, and magnetic hollow microballoon wall thickness about 0.5-1um saturated magnetization is strong
Degree is 60emu/g.
Embodiment 9:
1) adjustment slag temperature is to 1475 DEG C；
2) by lance ejection additive powder and slag, blowing pressurized air pressure is 0.9MPa, slag air demand per ton
100Nm3；
3) calcium carbide is added, ground partial size 10um, additive supply amount is the 10% of slag amount；
4) it is separated through roto-clone separator, obtains hollow ceramic microspheres, 70% or more the balling ratio of hollow ceramic microspheres；
5) it is handled through 650 DEG C of magnetizations, magnetization handles 120 min of time；
The outer diameter of gained magnetic hollow ceramic microsphere is 12-20um, and magnetic hollow microballoon wall thickness about 0.5-1um saturated magnetization is strong
Degree is 55emu/g.
Embodiment 10:
1) adjustment slag temperature is to 1465 DEG C；
2) by lance ejection additive powder and slag, blowing pressurized air pressure is 1.0MPa, slag air demand per ton
90Nm3；
3) lime stone is added, ground partial size 10um, additive supply amount is the 5% of slag amount；
4) it is separated through roto-clone separator, obtains hollow ceramic microspheres, 65% or more the balling ratio of hollow ceramic microspheres；
5) it is handled through 550 DEG C of magnetizations, magnetization handles 180 min of time；
The outer diameter of gained magnetic hollow ceramic microsphere is 12-28um, and magnetic hollow microballoon wall thickness about 0.5-1um saturated magnetization is strong
Degree is 60emu/g.
Embodiment 11:
1) adjustment slag temperature is to 1455 DEG C；
2) by lance ejection additive powder and slag, blowing pressurized air pressure is 0.6MPa, slag air demand per ton
100Nm3；
3) lime stone is added, ground partial size 30um, additive supply amount is the 10% of slag amount；
4) it is separated through roto-clone separator, obtains hollow ceramic microspheres, 80% or more the balling ratio of hollow ceramic microspheres；
5) it is handled through 950 DEG C of magnetizations, magnetization handles 100 min of time；
The outer diameter of gained magnetic hollow ceramic microsphere is 12-20um, and magnetic hollow microballoon wall thickness about 0.5-1um saturated magnetization is strong
Degree is 57emu/g.
Embodiment 12:
1) adjustment slag temperature is to 1450 DEG C；
2) by lance ejection additive powder and slag, blowing pressurized air pressure is 0.7MPa, slag air demand per ton
80Nm3；
3) lime stone is added, ground partial size 50um, additive supply amount is the 1% of slag amount；
4) it is separated through roto-clone separator, obtains hollow ceramic microspheres, 60% or more the balling ratio of hollow ceramic microspheres；
5) it is handled through 900 DEG C of magnetizations, magnetization handles 140 min of time；
The outer diameter of gained magnetic hollow ceramic microsphere is 15-30um, and magnetic hollow microballoon wall thickness about 0.5-1um saturated magnetization is strong
Degree is 48emu/g.
Embodiment 13:
1) adjustment slag temperature is to 1500 DEG C；
2) by lance ejection additive powder and slag, blowing pressurized air pressure is 0.8MPa, slag air demand per ton
80Nm3；
3) not doping；
4) it is separated through roto-clone separator, obtains hollow ceramic microspheres, 65% or more the balling ratio of hollow ceramic microspheres；
5) it is handled through 850 DEG C of magnetizations, magnetization handles 160 min of time；
The outer diameter of gained magnetic hollow ceramic microsphere is 12-20um, and magnetic hollow microballoon wall thickness about 0.5-1um saturated magnetization is strong
Degree is 60emu/g.
Embodiment 14:
1) adjustment slag temperature is to 1450 DEG C；
2) by lance ejection additive powder and slag, blowing pressurized air pressure is 0.9MPa, slag air demand per ton
100Nm3；
3) non-doping；
4) it is separated through roto-clone separator, obtains hollow ceramic microspheres, 75% or more the balling ratio of hollow ceramic microspheres；
5) it is handled through 750 DEG C of magnetizations, magnetization handles 180 min of time；
The outer diameter of gained magnetic hollow ceramic microsphere is 15-30um, and magnetic hollow microballoon wall thickness about 0.5-1um saturated magnetization is strong
Degree is 55emu/g.
Embodiment 15:
1) adjustment slag temperature is to 1480 DEG C；
2) by lance ejection slag, blowing pressurized air pressure is 0.8MPa, slag air demand 60Nm per ton3；
3) non-doping；
4) it is separated through roto-clone separator, obtains hollow ceramic microspheres, 75% or more the balling ratio of hollow ceramic microspheres；
5) it is handled through 750 DEG C of magnetizations, magnetization handles 180 min of time；
The outer diameter of gained magnetic hollow ceramic microsphere is 12-20um, magnetic hollow microballoon wall thickness about 0.5-0.8um saturated magnetization
Intensity is 50emu/g.
Claims (10)
1. a kind of method that nickel fibers high-temperature slag prepares magnetic hollow ceramic microsphere, it is characterised in that comprise the steps of:
(1) using nickel fibers high-temperature slag as raw material, temperature is adjusted before nickel slag is come out of the stove and is blown, is blown with supersonic airstream；
(2) supersonic airstream sprays additive together with slag；
(3) the pressure 0.6-1.0Mpa of compressed air, air demand 60-100Nm3；
(4) spray tip used is Laval nozzle, and lance outlet gas is made to reach supersonic speed；
(5) in ejiction opening by residual heat using device, the ceramic microsphere of ejection is cooling；
(6) hollow ceramic microspheres, solid ceramic microballoon, other fine metal oxides are separated with roto-clone separator；
(7) hollow ceramic microspheres are subjected to magnetization treatment.
2. the preparation method of magnetic hollow ceramic microsphere according to claim 1, it is characterised in that the nickel fibers slag
Include SiO2, MgO, FeO, CaO, CuO and Fe, Cu, Co, Ni sulfide；SiO in nickel slag2Mass percentage be 32-
The mass percentage of 36%, Fe are 33-40%, and the mass percentage of MgO is 5-10%, and the mass percentage of CaO is 1-
3%, and the metals such as the nickel containing different number, cobalt, sodium.
3. the preparation method of magnetic hollow ceramic microsphere according to claim 1, the substance of forming core, viscosity of getting angry, improve
Mixture or single substance comprising calcium carbide and lime stone.
4. the preparation method of magnetic hollow ceramic microsphere according to claim 1, it is characterised in that the substance that raw core is got angry
It is mixed in a certain ratio grinding or individually grinding through ball mill, in 10-50um, additive supply amount is the powder diameter after grinding
The 0-10% of slag amount.
5. the preparation method of magnetic hollow ceramic microsphere according to claim 1, slag temperature 1450-1500 DEG C it
Between, it is blown with the supersonic airstream that compressed air is generated through Laval nozzle.
6. the preparation method of magnetic hollow ceramic microsphere according to claim 1, it is characterised in that slag temperature adjustment and
Control uses electric arc furnaces or reverberatory furnace.
7. the preparation method of magnetic hollow ceramic microsphere according to claim 1, it is characterised in that blowing gas is compression
The supersonic airstream that air generates, the pressure of compressed air are 0.6-1.0MPa, air demand 60-100Nm3。
8. the preparation method of magnetic hollow ceramic microsphere according to claim 1, hollow ceramic microspheres, solid ceramic are micro-
Ball, thin dirt are separated with roto-clone separator.
9. the preparation method of magnetic hollow ceramic microsphere according to claim 1, the waste heat of recycling, solid ceramic microballoon,
Thin dirt is used for other purposes.
10. the hollow ceramic microspheres separated and collected according to claim 1 are in fixed heating furnace, rotary kiln or boiling heating furnace
In be heated to 500-950 DEG C, heating time is in 30-180 min.
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|---|---|---|---|---|
| GB1463956A (en) * | 1974-10-21 | 1977-02-09 | Gagner Aud Pere Et Fils Entrep | Slag treatment process |
| CN201400690Y (en) * | 2009-04-09 | 2010-02-10 | 河北理工大学 | Supersonic gas nozzle for granulating liquid molten slags |
| WO2013065940A1 (en) * | 2011-10-31 | 2013-05-10 | 주식회사 에코마이스터 | Quenched environmentally friendly nickel slag ball using high-speed gas, method for manufacturing same, and apparatus for manufacturing same |
| CN104624189A (en) * | 2015-01-12 | 2015-05-20 | 中国科学院宁波材料技术与工程研究所 | Magnetic titanium dioxide compound hollow microsphere and preparation method thereof |
| CN106830982A (en) * | 2017-03-21 | 2017-06-13 | 兰州理工大学 | A kind of method for preparing hollow ceramic microspheres |
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2019
- 2019-07-20 CN CN201910638435.1A patent/CN110218099A/en active Pending
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|---|---|---|---|---|
| GB1463956A (en) * | 1974-10-21 | 1977-02-09 | Gagner Aud Pere Et Fils Entrep | Slag treatment process |
| CN201400690Y (en) * | 2009-04-09 | 2010-02-10 | 河北理工大学 | Supersonic gas nozzle for granulating liquid molten slags |
| WO2013065940A1 (en) * | 2011-10-31 | 2013-05-10 | 주식회사 에코마이스터 | Quenched environmentally friendly nickel slag ball using high-speed gas, method for manufacturing same, and apparatus for manufacturing same |
| CN104624189A (en) * | 2015-01-12 | 2015-05-20 | 中国科学院宁波材料技术与工程研究所 | Magnetic titanium dioxide compound hollow microsphere and preparation method thereof |
| CN106830982A (en) * | 2017-03-21 | 2017-06-13 | 兰州理工大学 | A kind of method for preparing hollow ceramic microspheres |
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