CN109095795A - A kind of method of resource utilization copper smelter slag - Google Patents
A kind of method of resource utilization copper smelter slag Download PDFInfo
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- CN109095795A CN109095795A CN201811061503.4A CN201811061503A CN109095795A CN 109095795 A CN109095795 A CN 109095795A CN 201811061503 A CN201811061503 A CN 201811061503A CN 109095795 A CN109095795 A CN 109095795A
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- Prior art keywords
- slag
- copper smelter
- raw material
- particle
- grain
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- 239000002893 slag Substances 0.000 title claims abstract description 141
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 239000010949 copper Substances 0.000 title claims abstract description 50
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 42
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 63
- 239000002245 particle Substances 0.000 claims abstract description 47
- 229910052742 iron Inorganic materials 0.000 claims abstract description 31
- 239000002994 raw material Substances 0.000 claims abstract description 29
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 24
- 239000010959 steel Substances 0.000 claims abstract description 24
- 239000004568 cement Substances 0.000 claims abstract description 23
- 238000007885 magnetic separation Methods 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 18
- 238000010334 sieve classification Methods 0.000 claims abstract description 12
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000002360 preparation method Methods 0.000 claims abstract description 10
- 230000005291 magnetic effect Effects 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 15
- 239000011449 brick Substances 0.000 claims description 10
- 238000009628 steelmaking Methods 0.000 claims description 7
- 239000004576 sand Substances 0.000 claims description 6
- 238000003723 Smelting Methods 0.000 claims description 5
- 239000004567 concrete Substances 0.000 claims description 5
- 239000002826 coolant Substances 0.000 claims description 5
- 238000009845 electric arc furnace steelmaking Methods 0.000 claims description 5
- 238000007670 refining Methods 0.000 claims description 2
- 238000005345 coagulation Methods 0.000 claims 1
- 230000015271 coagulation Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 238000004064 recycling Methods 0.000 abstract description 6
- 238000001035 drying Methods 0.000 abstract description 3
- 238000010791 quenching Methods 0.000 abstract description 3
- 230000000171 quenching effect Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 230000008569 process Effects 0.000 description 10
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 238000006703 hydration reaction Methods 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 7
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 7
- 238000012545 processing Methods 0.000 description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 239000011574 phosphorus Substances 0.000 description 5
- 229910052698 phosphorus Inorganic materials 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 239000000292 calcium oxide Substances 0.000 description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 3
- 239000012670 alkaline solution Substances 0.000 description 3
- 229910052918 calcium silicate Inorganic materials 0.000 description 3
- 235000012241 calcium silicate Nutrition 0.000 description 3
- JHLNERQLKQQLRZ-UHFFFAOYSA-N calcium silicate Chemical compound [Ca+2].[Ca+2].[O-][Si]([O-])([O-])[O-] JHLNERQLKQQLRZ-UHFFFAOYSA-N 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000004520 agglutination Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- BCAARMUWIRURQS-UHFFFAOYSA-N dicalcium;oxocalcium;silicate Chemical compound [Ca+2].[Ca+2].[Ca]=O.[O-][Si]([O-])([O-])[O-] BCAARMUWIRURQS-UHFFFAOYSA-N 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 229910021534 tricalcium silicate Inorganic materials 0.000 description 2
- 235000019976 tricalcium silicate Nutrition 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 241000876852 Scorias Species 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- AGWMJKGGLUJAPB-UHFFFAOYSA-N aluminum;dicalcium;iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Ca+2].[Ca+2].[Fe+3] AGWMJKGGLUJAPB-UHFFFAOYSA-N 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000003349 gelling agent Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000009919 sequestration Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 239000002699 waste material 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
- C04B7/00—Hydraulic cements
- C04B7/14—Cements containing slag
- C04B7/147—Metallurgical slag
-
- 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
- C04B5/00—Treatment of metallurgical slag ; Artificial stone from molten metallurgical slag
-
- 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
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/38—Preparing or treating the raw materials individually or as batches, e.g. mixing with fuel
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
- C21B3/08—Cooling slag
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2200/00—Recycling of non-gaseous waste material
-
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Metallurgy (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Furnace Details (AREA)
Abstract
The present invention relates to a kind of methods of resource utilization copper smelter slag, the method are as follows: copper smelter slag is carried out dry and cold, magnetic separation remove it is dry and cold after steel grit in obtained clinker, the clinker obtained after steel grit will be removed to be crushed, obtain slag particle, magnetic separation removes the ferrous material in slag particle, carries out sieve classification to except the slag particle after iron.The present invention handles copper smelter slag using the method for dry process quenching combination magnetic separation, effectively maintain the activity of effective gel component in slag, handle obtained slag particle can be used as cheap raw material preparation high quality cement based article after classification, realize the utilization to the maximum recycling of copper smelter slag, with good economic efficiency and application prospect.
Description
Technical field
The present invention relates to solid waste resource recoveries to utilize field, and in particular to a kind of side of resource utilization copper smelter slag
Method.
Background technique
Copper smelter slag refer to the impurity in steelmaking process metal charge (molten iron and steel scrap etc.) be oxidized agent oxidation and generate
The general name for the product that oxide is formed with slag former and furnace lining generation physical-chemical reaction again.What is contained in copper smelter slag is main
Ingredient is CaO, SiO2、Fe2O3、FeO、MgO、CaS、MnO、P2O5Deng being unavoidably entrained with part when furthermore pouring out with clinker
Molten steel is a recycling large secondary resource.
CN102264919B provides a kind of method that iron and phosphorus are recycled from copper smelter slag, is restored first with carbon, Si, Al etc.
Agent to the phosphorous copper smelter slag such as dephosphorization clinker carry out reduction treatment, by the clinker ferriferous oxide and phosphorous oxides with phosphorous
The form of molten iron is restored and is recycled；Then the copper smelter slag of ferriferous oxide and phosphorous oxides will be eliminated as in sintering process
The source CaO use, sinter obtained is recycled to blast furnace；The phosphorous molten iron recycled by the reduction treatment is carried out
Dephosphorization treatment, until the phosphorus concentration in phosphorous molten iron reaches 0.1 mass % hereinafter, being concentrated in phosphorus in CaO class flux；By phosphorus
Concentration is mixed as source of iron in 0.1 mass % phosphorous molten iron below in blast-melted.This method has effectively recycled steel-making
Phosphorus and iron in clinker.
CN101905115A discloses a kind of using blast furnace slag, copper smelter slag as absorbing sulfur dioxide in flue gas
Process, the slurries being modulated into using powdery blast furnace slag or copper smelter slag and water absorb the titanium dioxide in flue gas as absorbent
Sulphur.The neutralized rear filtering of slurries after sulfur dioxide absorption, filtrate return to spend and size mixing, and filter cake is recycling.
The CN107814497A present invention provide a kind of agglutination material, mortar solidfied material manufacturing method and sand is formed by by it
Solidfied material is starched, copper smelter slag is impregnated in water, so that water forms alkaline solution.Alkaline solution is separated with copper smelter slag.?
Glass powder is added in alkaline solution, to form cementing solution.Solidify cementing solution, to form agglutination material.
CN102719577A discloses the method for a kind of ironmaking of coupling processing, copper smelter slag, and high-temperature liquid state blast furnace slag is fallen
Enter in the tank body with heat-exchange system；High-temperature liquid state vessel slag is added into tank body simultaneously, stewing tank is carried out after mixing, when boiling in a covered pot over a slow fire tank
Between be not less than 0.5h, recycle afterheat of slags, obtain granular clinker, granular clinker is used as after magnetic separation recovery iron
Cement raw material.
CN105073680A discloses a kind of manufacturing method of hydration curing body, impregnates 10 days using in 80 DEG C of warm water
The copper smelter slag and contain SiO that pulverization rate afterwards is 2.5 mass % or less and fineness modulus is 4.5 or more2Blast-furnace slag
Micro mist or the hydration curing body of blast-furnace slag micro mist and flyash mixed milling manufacture.
The above method realizes the recycling to copper smelter slag, but its part generally only recycled in clinker is valuable
Ingredient, remaining ingredient are still used as solid waste to be handled, and objectively cause the waste of resource and increase environmentally friendly pressure
Power.Therefore, how secondary development to be carried out to copper smelter slag to greatest extent, realizes the benefit to copper smelter slag Comprehensive recycling
With being still field of metallurgy one of Important Problems urgently to be resolved.
Summary of the invention
In order to solve the above technical problems, utilizing dry method the present invention provides a kind of method of resource utilization copper smelter slag
The method of chilling combination magnetic separation handles copper smelter slag, effectively maintains the activity of effective gel component in slag, the slag handled
Grain can be used as cheap raw material preparation high quality cement or building block after classification, realize to the maximum resource of copper smelter slag
The utilization of change, with good economic efficiency and application prospect.
The present invention provides a kind of methods of resource utilization copper smelter slag, the described method comprises the following steps:
(1) copper smelter slag is carried out dry and cold；
(2) steel grit in clinker obtained after magnetic separation removing step (1) is dry and cold；
(3) step (2) are removed the clinker obtained after steel grit to be crushed, obtains slag particle；
(4) magnetic separation removes the ferrous material in the slag particle that step (3) obtain；
(5) to step (4) except the slag particle after iron carries out sieve classification.
The main component contained in copper smelter slag is CaO, SiO2、Fe2O3、FeO、MgO、CaS、MnO、P2O5Deng.Cement
Gelling component is mainly: tricalcium silicate (3CaOSiO2) 37-60wt%, dicalcium silicate (2CaOSiO2) 15-37wt%, aluminium
Sour tricalcium (3CaOAl2O3) 7-15wt%, tetra calcium aluminoferrite (4CaOAl2O3·Fe2O3) 10-18wt%；In above-mentioned cement
Four gelling components, the mine phase component of copper smelter slag has just, only tricalcium silicate, dicalcium silicate binomial total content >
60wt%.
The cooling way of copper smelter slag includes dry and cold and water cooling, as long as the steel slag of melting is not met in crystallization and cooling procedure
Hydration reaction would not occur for water, effective gel component in above-mentioned slag, and gel active will be kept, and then can be used as water
The raw material of mud based article and applied.
In addition, the copper smelter slag of dry process quenching, chilling speed is faster, the easier shadow by dicalcium silicate chilling volume expansion
It rings, the dry slag particle degree of obtained cooling is smaller, more advantageous to the subsequent applications processing of dry slag particle.And the converter that dry colling obtains
Slag, granularity is smaller, and gel active is stronger.
According to the present invention, step (1) the dry and cold operation can be with are as follows: by copper smelter slag be placed in collet indirect water-cooling or
It is blown into cold air to copper smelter slag to be cooled down, the processing means may be implemented under the premise of not contacting water, by converter
Slag is quickly cooled down, and maintains the activity of its effective gel component, while obtaining the dry slag of the smaller cooling of granularity.
Copper smelter slag is entrained with part molten steel (average 2.5wt%/quantity of slag), the indefinite fashioned iron formed after cooling when slagging tap
Grain.Magnetic field strength < 1T when step (2) of the present invention control magnetic separation, under the magnetic field strength, steel in the clinker that is obtained after dry and cold
Grain is recycled, and being wrapped in the ferrous material in clinker (thin abrasive grit and magnetic iron oxide) will not then be selected.By above-mentioned
Operation, the present invention have selected the steel grit of purity > 90wt%, and gained steel grit can be used as raw material and directly return to electric-arc furnace steelmaking or work
For the use of pneumatic steelmaking coolant.
According to the present invention, the partial size < 5mm of step (3) described slag particle.
Magnetic field strength > 2T is controlled in step (4) of the present invention, under the magnetic field strength, the present invention has selected remaining in clinker
Ferrous material (thin abrasive grit and magnetic iron oxide).Gained ferrous material purity > 40wt% can be used as sinter for smelting iron.
The present invention passes through step (2) and step (4) magnetic separation twice, iron most in clinker is recycled, after iron removal by magnetic separation
Iron content < 2% in obtained slag particle meets requirement of the cement supplementary material to metal Ferrum content, realizes in copper smelter slag
Iron is recycled and is utilized to greatest extent.
According to the present invention, after step (5) described sieve classification, the granulated slag grain of partial size < 0.2mm is respectively obtained, partial size is
The micro- slag particle and partial size > 3mm of 0.2-3mm and the fine slag grain of < 5mm.
The above-mentioned slag particle obtained after sieve classification can be used as raw material and prepare cement or building block.It illustratively, can be by institute
Granulated slag grain is obtained as raw material preparation plus aerated concrete building block；It prepares non-burning brick, or replaces natural using the micro- slag particle of gained as raw material
Sand preparation hydraulic engineering building block；Cement is prepared using gained fine slag grain as raw material.
As a preferred technical solution, resource utilization copper smelter slag of the present invention method the following steps are included:
(1) dry and cold, the dry and cold mode is carried out to copper smelter slag are as follows: by copper smelter slag be placed in collet indirect water-cooling or
Cold air is blown into copper smelter slag to be cooled down；
(2) magnetic field strength < 1T is controlled, the steel grit in clinker obtained after magnetic separation removing step (1) is dry and cold；By gained steel
Grain is as raw material return electric-arc furnace steelmaking or as pneumatic steelmaking coolant；
(3) step (2) are removed the clinker obtained after steel grit to be crushed, obtains the slag particle of partial size < 5mm；
(4) magnetic field strength > 2T is controlled, magnetic separation removes the ferrous material in the slag particle that step (3) obtain；By gained iron content
Material is as sinter for smelting iron；
(5) the granulated slag grain of partial size < 0.2mm, partial size are respectively obtained except the slag particle after iron carries out sieve classification to step (4)
For the micro- slag particle and partial size > 3mm of 0.2-3mm and the fine slag grain of < 5mm；It is mixed gained granulated slag grain as raw material preparation plus vapour
Solidifying earth building blocks；Micro- slag particle prepared as raw material it is non-burning brick, or replace natural sand prepare hydraulic engineering building block；Fine slag grain is as former
Material prepares cement.
Compared with prior art, the present invention at least has the advantages that
(1) present invention handles copper smelter slag using the method for dry process quenching, effectively maintains effective gel component in slag
Activity realizes the utilization to the maximum recycling of copper smelter slag in conjunction with the processing mode of magnetic separation.
(2) slag particle obtained after sieve classification is prepared cement or building block by the present invention, realizes and leads to building materials
High quality cement based article is prepared under conditions of large scale matches slag in the cheap replacement of domain raw material, has good economy
Benefit and application prospect.
(3) present invention uses CO in absorption flue gas during preparing brick or building block using slag particle2The carbonic acid of preparation is molten
Liquid replaces water to be prepared, and can play carbon sequestration, reduces carbon emission, and density improves intensity, stablizes the multiple beneficial of free cao
Effect.
(4) granularity of gained slag particle meets the requirement for preparing cement or building block after sieve classification of the present invention, in application process
In subsequent levigate step has been omitted or simplified, reduce processing cost.
Specific embodiment
In order to better illustrate the present invention, it is easy to understand technical solution of the present invention, of the invention is typical but non-limiting
Embodiment is as follows:
Embodiment 1
(1) by collet indirect water-cooling and it is air-cooled in the way of copper smelter slag is carried out it is dry and cold；
(2) use the ferromagnetic rolling of weak permanent magnetic, magnetic field strength < 1T, magnetic separation remove step (1) it is dry and cold after in obtained clinker
High-purity steel grit；
(3) step (2) are removed the clinker obtained after steel grit to be crushed, obtains the slag particle of partial size < 5mm；
(4) the ferromagnetic rolling of strong permanent magnetic, magnetic field strength > 2T are used, magnetic separation removes the iron content in the slag particle that step (3) obtain
Material；
(5) the granulated slag grain of partial size < 0.2mm, partial size are respectively obtained except the slag particle after iron carries out sieve classification to step (4)
For the micro- slag particle and partial size > 3mm of 0.2-3mm and the fine slag grain of < 5mm.
Embodiment 2
The quality raw materials preparation plus aerated concrete building block that 1 gained granulated slag grain of embodiment (partial size < 0.2mm) is used as, it is so-called
Quality raw materials refer to, contain a large amount of gelling agents (class cement) in the raw material, by adding water, stirring, molding, steam-cured, make in raw material
Hydration reaction mutually occurs similar to cement cementitious with quite active gelling, cement can be greatly reduced with than or even completely not
With cement, concrete segment cost is reduced.
Embodiment 3
The micro- slag particle (partial size 0.2-3mm) of the gained of embodiment 1 prepare as raw material it is non-burning brick, or replacement natural sand do it is various
Water conservancy building block or hydraulic engineering (such as anti seepage channel, dykes and dams building block, rivers and lakes bank building block, sea farming ecological block), through refining
Treated micro- slag particle, will add water when manufacturing building block, brick, slag particle can not only occur to be gelled the hydration reaction of phase, reduce even complete
It is complete to replace cement, the building block of intensity qualification is obtained, and in the use process manufactured and meet water for a long time, it is easy to occur freely
The atypical hydration reaction of base calcium oxide and water generates calcium hydroxide, and then eliminates free-radical oxidation calcium, free-radical oxidation magnesium not
Stability harm.
Embodiment 4
Further, the application in embodiment 2 and embodiment 3 for granulated slag grain and micro- slag particle, scoria is built at molding scene in
Near ash furnace or coal-burning boiler, increase a suction carbon pond, burning lime kiln or discharged from coal-fired boiler are rich in CO2Part it is useless
Flue gas is blown into the water for inhaling carbon pond, prepares carbonate aqueous solution, and when building block processed, brick adds water to be changed to plus carbonate aqueous solution, can be effective
The intensity of building block, brick, the more preferable unstability harm for eliminating free-radical oxidation calcium, free-radical oxidation magnesium are improved, generation has as follows
Benefit reaction:
fCaO+H2CO3=CaCO3+H2O
fMgO+H2CO3=MgCO3+H2O
FCaO and fMgO generates stable carbonate after inhaling carbon, inhales the volume density that carbon increases slag particle, it is strong to improve product
Degree.
The above-mentioned building block being prepared with granulated slag grain and micro- slag particle or brick, will reinforce the sprinkling maintenance frequency after molding, prevent
Only insolation is dehydrated under sunlight, is influenced the hydration reaction of gelling phase in slag particle, is led to the underproof product of intensity occur.
Embodiment 5
Activity gel condensed-phase is rich in 1 gained fine slag grain of embodiment (partial size > 3mm and < 5mm, iron content < 2%), by it
Join and grind cement by a certain percentage with clinker, cement cost can be substantially reduced, it is smaller on cement grade influence, it mixes and matches
Ratio can be increased suitably.
Embodiment 6
Electric-arc furnace steelmaking is returned using 1 gained steel grit of embodiment as raw material or as pneumatic steelmaking coolant；Gained iron content
Material is as sinter for smelting iron.
Comparative example 1
Compared with Example 1, copper smelter slag is placed in natural cooling in air in this comparative example step (1), other steps
It is identical with embodiment 1 with condition.
As a result, it has been found that natural cooling overlong time, has seriously affected processing speed, the slag particle obtained after cooling is larger.This
Outside, the moisture in air enters copper smelter slag in cooling procedure, hydration reaction occurs with effective gel component in slag, significantly
Its gel active is reduced, final gained slag particle is difficult to meet the preparation requirement of embodiment 2-5, the resource utilization of copper smelter slag
It is restricted.
The Applicant declares that the present invention is explained by the above embodiments detailed process equipment and process flow of the invention,
But the present invention is not limited to the above detailed process equipment and process flow, that is, it is above-mentioned detailed not mean that the present invention must rely on
Process equipment and process flow could be implemented.It should be clear to those skilled in the art, any improvement in the present invention,
Addition, selection of concrete mode of equivalence replacement and auxiliary element to each raw material of product of the present invention etc., all fall within of the invention
Within protection scope and the open scope.
Claims (10)
1. a kind of method of resource utilization copper smelter slag, which is characterized in that the described method comprises the following steps:
(1) copper smelter slag is carried out dry and cold；
(2) steel grit in clinker obtained after magnetic separation removing step (1) is dry and cold；
(3) step (2) are removed the clinker obtained after steel grit to be crushed, obtains slag particle；
(4) magnetic separation removes the ferrous material in the slag particle that step (3) obtain；
(5) to step (4) except the slag particle after iron carries out sieve classification.
2. the method as described in claim 1, which is characterized in that step (1) the dry and cold operation are as follows: be placed in copper smelter slag
In collet indirect water-cooling or cold air is blown into copper smelter slag is cooled down.
3. method according to claim 1 or 2, which is characterized in that magnetic field strength < 1T when step (2) described magnetic separation.
4. the method according to claim 1, which is characterized in that the partial size < 5mm of step (3) described slag particle.
5. method according to any of claims 1-4, which is characterized in that magnetic field strength > when step (4) described magnetic separation
2T。
6. the method according to claim 1 to 5, which is characterized in that the slag obtained after step (4) described iron removal by magnetic separation
Iron content < 2% in grain.
7. as the method according to claim 1 to 6, which is characterized in that after step (5) described sieve classification, respectively obtain
The granulated slag grain of partial size < 0.2mm, partial size are micro- slag particle of 0.2-3mm and the fine slag grain of partial size > 3mm and < 5mm.
8. the method according to claim 1 to 7, which is characterized in that the slag particle that will be obtained after step (5) sieve classification
Cement or building block are prepared as raw material；
Preferably, using gained granulated slag grain as raw material preparation plus aerated concrete building block；
Preferably, prepared using the micro- slag particle of gained as raw material it is non-burning brick, or replace natural sand prepare hydraulic engineering building block；
Preferably, cement is prepared using gained fine slag grain as raw material.
9. the method according to claim 1, which is characterized in that return the steel grit that step (2) obtains as raw material
Return electric-arc furnace steelmaking or as pneumatic steelmaking coolant；
Preferably, using the ferrous material that step (4) obtains as sinter for smelting iron.
10. such as the described in any item methods of claim 1-9, which is characterized in that the described method comprises the following steps:
(1) dry and cold, the dry and cold mode is carried out to copper smelter slag are as follows: copper smelter slag is placed in collet indirect water-cooling or to refining
Steel stove slag is blown into cold air and is cooled down；
(2) magnetic field strength < 1T is controlled, the steel grit in clinker obtained after magnetic separation removing step (1) is dry and cold；Gained steel grit is made
Electric-arc furnace steelmaking is returned for raw material or as pneumatic steelmaking coolant；
(3) step (2) are removed the clinker obtained after steel grit to be crushed, obtains the slag particle of partial size < 5mm；
(4) magnetic field strength > 2T is controlled, magnetic separation removes the ferrous material in the slag particle that step (3) obtain；By gained ferrous material
As sinter for smelting iron；
(5) the granulated slag grain of partial size < 0.2mm is respectively obtained, partial size is except the slag particle after iron carries out sieve classification to step (4)
The micro- slag particle and partial size > 3mm of 0.2-3mm and the fine slag grain of < 5mm；Using gained granulated slag grain as raw material preparation plus vapour coagulation
Earth building blocks；Micro- slag particle prepared as raw material it is non-burning brick, or replace natural sand prepare hydraulic engineering building block；Fine slag grain is as raw material
Prepare cement.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110028255A (en) * | 2019-06-04 | 2019-07-19 | 台州市椒江预提自动化设备有限公司 | A kind of copper smelter slag resource utilization equipment |
| CN110273042A (en) * | 2019-07-08 | 2019-09-24 | 湖南福华信息工程有限公司 | A kind of resource utilization converter monitoring system |
| CN114457233A (en) * | 2022-01-13 | 2022-05-10 | 湖南博一环保科技有限公司 | Method for cooperatively treating iron and steel dust mud and iron-containing ore sand by using rotary kiln |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1560283A (en) * | 2004-02-26 | 2005-01-05 | 莱芜钢铁集团有限公司 | Technology for using steel dregs |
| CN102978305A (en) * | 2012-12-15 | 2013-03-20 | 武钢集团昆明钢铁股份有限公司 | Molten steel casting residue treatment and recycling method |
| CN103290153A (en) * | 2013-06-05 | 2013-09-11 | 中冶建筑研究总院有限公司 | Steel slag treating technology |
| CN103602768A (en) * | 2013-11-29 | 2014-02-26 | 攀枝花钢城集团有限公司 | Converter steel slag hot closed treatment method, slag-iron separation method and uses of by-products |
| CN104480239A (en) * | 2014-12-05 | 2015-04-01 | 本钢板材股份有限公司 | Method for treating converter slag through hot splashing |
| CN105258515A (en) * | 2015-11-09 | 2016-01-20 | 郭瑛 | Apparatus and method for recovering steelmaking slag afterheat of electric arc furnace |
| CN206843514U (en) * | 2017-05-22 | 2018-01-05 | 中冶南方工程技术有限公司 | Air-cooled metallurgical slag treatment apparatus |
-
2018
- 2018-09-12 CN CN201811061503.4A patent/CN109095795A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1560283A (en) * | 2004-02-26 | 2005-01-05 | 莱芜钢铁集团有限公司 | Technology for using steel dregs |
| CN102978305A (en) * | 2012-12-15 | 2013-03-20 | 武钢集团昆明钢铁股份有限公司 | Molten steel casting residue treatment and recycling method |
| CN103290153A (en) * | 2013-06-05 | 2013-09-11 | 中冶建筑研究总院有限公司 | Steel slag treating technology |
| CN103602768A (en) * | 2013-11-29 | 2014-02-26 | 攀枝花钢城集团有限公司 | Converter steel slag hot closed treatment method, slag-iron separation method and uses of by-products |
| CN104480239A (en) * | 2014-12-05 | 2015-04-01 | 本钢板材股份有限公司 | Method for treating converter slag through hot splashing |
| CN105258515A (en) * | 2015-11-09 | 2016-01-20 | 郭瑛 | Apparatus and method for recovering steelmaking slag afterheat of electric arc furnace |
| CN206843514U (en) * | 2017-05-22 | 2018-01-05 | 中冶南方工程技术有限公司 | Air-cooled metallurgical slag treatment apparatus |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110028255A (en) * | 2019-06-04 | 2019-07-19 | 台州市椒江预提自动化设备有限公司 | A kind of copper smelter slag resource utilization equipment |
| CN110273042A (en) * | 2019-07-08 | 2019-09-24 | 湖南福华信息工程有限公司 | A kind of resource utilization converter monitoring system |
| CN114457233A (en) * | 2022-01-13 | 2022-05-10 | 湖南博一环保科技有限公司 | Method for cooperatively treating iron and steel dust mud and iron-containing ore sand by using rotary kiln |
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Application publication date: 20181228 |