CN108531744A - Copper ashes dilution device - Google Patents
Copper ashes dilution device Download PDFInfo
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- CN108531744A CN108531744A CN201810639269.2A CN201810639269A CN108531744A CN 108531744 A CN108531744 A CN 108531744A CN 201810639269 A CN201810639269 A CN 201810639269A CN 108531744 A CN108531744 A CN 108531744A
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- Prior art keywords
- copper ashes
- dilution
- copper
- slag
- furnace body
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- 239000010949 copper Substances 0.000 title claims abstract description 261
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 253
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 253
- 235000002918 Fraxinus excelsior Nutrition 0.000 title claims abstract description 182
- 239000002956 ash Substances 0.000 title claims abstract description 182
- 238000010790 dilution Methods 0.000 title claims abstract description 134
- 239000012895 dilution Substances 0.000 title claims abstract description 134
- 239000002893 slag Substances 0.000 claims abstract description 66
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 62
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 62
- 239000000428 dust Substances 0.000 claims abstract description 61
- 230000009467 reduction Effects 0.000 claims abstract description 32
- 241000722270 Regulus Species 0.000 claims abstract description 24
- 230000008676 import Effects 0.000 claims abstract description 23
- RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium Chemical compound [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 claims abstract description 18
- 238000005485 electric heating Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 45
- 239000000654 additive Substances 0.000 claims description 28
- 230000000996 additive effect Effects 0.000 claims description 27
- 238000011084 recovery Methods 0.000 claims description 27
- 239000007789 gas Substances 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 9
- 239000003546 flue gas Substances 0.000 claims description 9
- 239000002918 waste heat Substances 0.000 claims description 9
- 239000000779 smoke Substances 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 7
- JQJCSZOEVBFDKO-UHFFFAOYSA-N lead zinc Chemical compound [Zn].[Pb] JQJCSZOEVBFDKO-UHFFFAOYSA-N 0.000 abstract description 6
- 239000011701 zinc Substances 0.000 description 34
- 229910052725 zinc Inorganic materials 0.000 description 34
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 32
- 238000006722 reduction reaction Methods 0.000 description 27
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 22
- 229910052751 metal Inorganic materials 0.000 description 17
- 239000002184 metal Substances 0.000 description 17
- 239000010410 layer Substances 0.000 description 11
- 229910000464 lead oxide Inorganic materials 0.000 description 11
- 239000011787 zinc oxide Substances 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 239000000126 substance Substances 0.000 description 10
- 239000003638 chemical reducing agent Substances 0.000 description 9
- 238000003113 dilution method Methods 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000003723 Smelting Methods 0.000 description 6
- 239000000155 melt Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000001698 pyrogenic effect Effects 0.000 description 5
- 238000004064 recycling Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000013043 chemical agent Substances 0.000 description 4
- 239000003245 coal Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical group [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 4
- 229910052683 pyrite Inorganic materials 0.000 description 4
- 239000011028 pyrite Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000012792 core layer Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 241001062472 Stokellia anisodon 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
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000012840 feeding operation Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000013528 metallic particle Substances 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/04—Working-up slag
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
- C22B4/005—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys using plasma jets
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
- C22B4/08—Apparatus
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/001—Dry processes
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention provides a kind of copper ashes dilution devices.The device includes copper ashes dilution treatment furnace and Yarn feeding device, copper ashes dilution treatment furnace is using electric heating or plasma heat as heat source, copper ashes dilution treatment furnace is provided with copper ashes import, line feeding hole and puts sulfonium mouth, and copper ashes import puts sulfonium mouth the copper matte regulus that reduction dilution is handled is discharged to be passed through copper ashes；Yarn feeding device is used to feed carbon dust line into copper ashes dilution treatment furnace by line feeding hole to carry out reduction dilution processing to copper ashes.The reduction dilution efficiency of copper ashes can be effectively improved using copper ashes dilution device provided by the invention, and have simultaneously flow it is short, it is at low cost, the advantageous effects such as the heavy metals such as lead zinc in slag can be recycled simultaneously.
Description
Technical field
The present invention relates to metal smelt technical fields, in particular to a kind of copper ashes dilution device.
Background technology
During existing Copper making, 1t copper is often smelted, will produce the copper ashes of 2~7t, copper and other tenors in slag
It is higher.Copper content in different smelting process output slags is different, and copper content is 0.8~12% in copper ashes, and also contains lead, zinc etc.
Metal, lead content about 0.5~10%, Zn content about 1.0~8%.
Currently, domestic copper ashes mainly uses technique of preparing to carry out dilution, copper ashes is mainly subjected to slag slow cooling, is crushed, thin
Mill and etc..Such as：The Chinese patent of application number 2014106829920.6 proposes a kind of direct side for recycling iron resource in slag
Method, pelletizing-drying-reduction-ore dressing after copper ashes cooling.But method presence takes up a large area, cost of investment is high, heat waster is tight
The problems such as weight.In recent years copper ashes annual emissions in the world's reach 60,000,000 tons or more, and China's copper ashes annual emissions are up to 15,000,000 tons, if entirely
Portion carries out dilution utilization using beneficiation method to slag, and the stockpiling of ore dressing clinker causes larger harm to surrounding enviroment, and lead in slag,
Zinc cannot be recycled utilization, cause the larger wasting of resources.
Recent domestic researcher has carried out many researchs to pyrogenic attack copper ashes, but there has been no ripe technique,
It is primarily present following defect：(1) lump coal is added or fine coal carries out reduction dilution, lump coal and fine coal can be floated in slag surface, greatly
Amount reducing agent burns in flue gas, fails to play preferable reduction；And molten bath is static, is unfavorable for copper matte regulus in slag (metal)
Agglomeration, dynamic conditions are poor；(2) investment of reducing agent blowing process is larger, production cost is higher.
Invention content
The main purpose of the present invention is to provide a kind of copper ashes dilution devices, to solve to be recycled copper ashes in the prior art
Shi Wufa takes into account the irretrievable problems of heavy metals such as at low cost, flow is short, efficient, lead zinc.
To achieve the goals above, according to an aspect of the invention, there is provided a kind of copper ashes dilution device comprising：
Copper ashes dilution treatment furnace, using electric heating or plasma heat as heat source, copper ashes dilution treatment furnace is provided with copper ashes import, line feeding hole and puts
Sulfonium mouth, copper ashes import put sulfonium mouth the copper matte regulus that reduction dilution is handled is discharged to be passed through copper ashes；And Yarn feeding device,
For carbon dust line to be fed into copper ashes dilution treatment furnace by line feeding hole to carry out reduction dilution processing to copper ashes.
Further, copper ashes dilution treatment furnace is ore-smelting electric furnace or plasma heating furnace.
Further, copper ashes dilution treatment furnace includes：Furnace body, copper ashes import and line feeding hole are arranged at the top of furnace body, put
The side-lower in furnace body is arranged in sulfonium mouth, and electrode hole is additionally provided on furnace body；And heating electrode, heating electrode pass through electrode hole
The content for extending to furnace body, to furnace body heat supply.
Further, line feeding hole is multiple, and multiple line feeding pore size distributions are at the top of furnace body.
Further, line feeding hole is 3~8, and the aperture in line feeding hole is 30~100mm.
Further, furnace body relative to the side lower part for putting sulfonium mouth is additionally provided with slag tap, and slag tap is being discharged also
The clinker of output in former dilution processing procedure.
Further, copper ashes dilution device further includes slag cooler, and slag cooler is to stove that slag tap is discharged
Slag is cooled down.
Further, it is additionally provided with additive entrance at the top of furnace body, additive entrance is being passed through additive.
Further, additive entrance and copper ashes import are co-located.
Further, copper ashes dilution device further includes additive storage bin, and additive storage bin is connected with additive entrance.
Further, copper ashes dilution treatment furnace is additionally provided with offgas outlet, and copper ashes dilution device further includes：Waste heat recovery fills
It sets, is provided with heat smoke import and cold flue gas outlet, heat smoke import is connected with offgas outlet；And dust arrester installation, gather dust dress
It sets and is connected with cold flue gas outlet.
The present invention provides a kind of copper ashes dilution devices comprising copper ashes dilution treatment furnace and Yarn feeding device, copper ashes dilution
Using electric heating or plasma heat as heat source, copper ashes dilution treatment furnace is provided with copper ashes import, line feeding hole and puts sulfonium mouth, copper ashes treatment furnace
Import puts sulfonium mouth the copper matte regulus that reduction dilution is handled is discharged to be passed through copper ashes；Yarn feeding device is used to pass through line feeding hole
Carbon dust line is fed into copper ashes dilution treatment furnace to carry out reduction dilution processing to copper ashes.
Using copper ashes dilution device provided by the invention, carbon dust line is fed by copper ashes dilution treatment furnace using wire injection procedure
In, reduction dilution processing is then carried out to copper ashes as heat source using electric heating or plasma heat.Compared to traditional ore-dressing technique, utilize
Above-mentioned apparatus handles copper ashes, and flow is simple, and it is the heat carried that can efficiently use copper ashes itself and be come out from front-end-of-line, and should
Installation area is small, equipment cost is low.Meanwhile the device can by copper ashes lead oxides and zinc oxide carry out together
Copper therein and a small amount of lead, zinc are recycled in reduction treatment, and avoid the chemical agent added in such as ore-dressing technique, are not only
Enterprise brings larger economic benefit, and greatly reduces security risk.Compared to pyrogenic process dilution technique, the present invention is by feeding
Line apparatus can directly feed carbon dust line in the melt layer of the slag middle and lower part in furnace body.It can make the carbon in carbon dust line in this way
Melt contacts of the powder more fully with slag middle and lower part, play the function of reducing agent, in higher dilution dynamic conditions
The lower Cu oxide by copper ashes is reduced to copper matte regulus, wherein a small amount of lead oxides, zinc oxide can be also reduced to accordingly
Metal simple-substance enters in tail gas (lead, zinc are gasifiable to enter tail gas), to facilitate recycling.
Based on the above reason, the reduction dilution that copper ashes can be effectively improved using copper ashes dilution device provided by the invention is imitated
Rate, and have simultaneously flow it is short, it is at low cost, the advantageous effects such as the heavy metals such as lead zinc in slag can be recycled simultaneously.
Description of the drawings
The accompanying drawings which form a part of this application are used to provide further understanding of the present invention, and of the invention shows
Meaning property embodiment and its explanation are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 shows the copper ashes dilution schematic device according to an embodiment of the present invention.
Wherein, above-mentioned attached drawing includes the following drawings label：
10, copper ashes dilution treatment furnace；11, furnace body；12, electrode is heated；20, Yarn feeding device；30, waste-heat recovery device；40、
Dust arrester installation；50, additive storage bin；
A, copper ashes；B, carbon dust line；C, copper matte regulus；D, clinker；E, tail gas.
Specific implementation mode
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
The application is described in further detail below in conjunction with specific embodiment, these embodiments should not be understood as limitation originally
Apply for range claimed.
As described in background technology part, at low cost, flow can not be taken into account when being recycled copper ashes in the prior art
The heavy metals such as short, efficient, lead zinc can not recycle.
To solve the above-mentioned problems, the present invention provides a kind of copper ashes dilution devices, as shown in Figure 1 comprising copper ashes is poor
Change treatment furnace 10 and Yarn feeding device 20, copper ashes dilution treatment furnace 10, using electric heating or plasma heat as heat source, copper ashes dilution treatment furnace
10 are provided with copper ashes import, line feeding hole and put sulfonium mouth, and copper ashes import puts sulfonium mouth reduction dilution is discharged to be passed through copper ashes a
Handle obtained copper matte regulus c；Yarn feeding device 20, for feeding carbon dust line b into copper ashes dilution treatment furnace 10 by line feeding hole with right
Copper ashes carries out reduction dilution processing.
Using copper ashes dilution device provided by the invention, carbon dust line is fed by copper ashes dilution treatment furnace using Yarn feeding device 20
In 10, reduction dilution processing is then carried out to copper ashes as heat source using electric heating or plasma heat.Compared to traditional ore-dressing technique, profit
Copper ashes is handled with above-mentioned apparatus, flow is simple, and it is the heat carried that can efficiently use copper ashes itself and be come out from front-end-of-line, and
The installation area is small, equipment cost is low.Meanwhile the device can by copper ashes lead oxides and zinc oxide one go forward side by side
Copper therein and a small amount of lead, zinc are recycled in row reduction treatment, and avoid the chemical agent added in such as ore-dressing technique, not only
Larger economic benefit is brought for enterprise, and greatly reduces security risk.Compared to pyrogenic process dilution technique, the present invention passes through
Yarn feeding device 20 can directly feed carbon dust line in the melt layer of the slag middle and lower part in furnace body.It can make in carbon dust line in this way
Melt contacts of the carbon dust more fully with slag middle and lower part, the function of reducing agent is played, in higher dilution dynamics
Under the conditions of the Cu oxide in copper ashes is reduced to copper matte regulus, wherein a small amount of lead oxides, zinc oxide can also be reduced to phase
The metal simple-substance answered enters in tail gas (lead, zinc are gasifiable to enter tail gas), to facilitate recycling.
Based on the above reason, the reduction dilution that copper ashes can be effectively improved using copper ashes dilution device provided by the invention is imitated
Rate, and have simultaneously flow it is short, it is at low cost, the advantageous effects such as the heavy metals such as lead zinc in slag can be recycled simultaneously.
During practical dilution, the admission velocity of carbon dust line is controlled by Yarn feeding device 20, carbon dust (lacks after entering melt with copper
Measure lead, zinc) oxide reaction, generate CO, CO2Gas will be reduced into metal simple-substance state with metal existing for oxidation state,
The sedimentation of other metals such as copper is simultaneously discharged by putting sulfonium mouth.During gas is escaped by melt, additionally it is possible to play the stirring to melt and make
With can also promote metallic particles agglomeration in this way and settle, to promote the progress of reduction reaction.
In a preferred embodiment, copper ashes dilution treatment furnace 10 is ore-smelting electric furnace or plasma heating furnace.Utilize mine heat
Electric furnace or plasma heating furnace can provide stable heat for the dilution process of copper ashes, and the carbon dust line being added substantially can be complete
Reducing agent is served as, dilution dynamic conditions can be further improved, improves production efficiency.
In a preferred embodiment, as shown in Figure 1, copper ashes dilution treatment furnace 10 includes furnace body 11 and heating electrode
12, copper ashes import and line feeding hole, which are arranged, puts sulfonium mouth at the top of furnace body 11 side-lower in furnace body 11 is arranged, and on furnace body 11 also
It is provided with electrode hole；Heating electrode 12 passes through electrode hole to extend to the content of furnace body 11, to 11 heat supply of furnace body.In practical behaviour
During work, by power supply to heating electrode 12 power, and then using heating electrode 12 be furnace body 11 inside copper ashes system into
Row heat supply.The number of above-mentioned heating electrode 12 can be adjusted according to 11 capacity of furnace body, copper ashes treating capacity, this is this field skill
Art personnel should be understood that.
In order to more easily carry out line feeding operation, and the height of line feeding is more easily controlled, in a kind of preferred embodiment party
In formula, line feeding hole is multiple, and multiple line feeding pore size distributions are at the top of furnace body 11.By line feeding pore size distribution at the top of furnace body 11, lead to
Yarn feeding device 20 is crossed by behind carbon dust line feeding line feeding hole, carbon dust line can enter under the gravity of itself inside melt to be connect with melt
It touches, and control line end height should be facilitated in the process.In addition, multiple line feeding holes are arranged, carbon dust line can be fed in different positions,
Be conducive to further increase the efficiency of dilution reduction.Preferably, line feeding hole is 3~8, and the aperture in line feeding hole is 30~100mm.
In a preferred embodiment, furnace body 11 relative to the side lower part for putting sulfonium mouth is additionally provided with slag tap,
Slag tap restores the clinker d of output in dilution processing procedure to be discharged.As shown in Figure 1, in actual production process, furnace body
In dilution system in 11, underlying is copper matte regulus, and superposed is some slags for floating on bath surface.Therefore, sharp
These slags can be discharged with slag tap.Preferably, copper ashes dilution device further includes slag cooler, slag cooler to
The clinker d of slag tap discharge is cooled down.Methods for cooling commonly used in the art, such as water may be used in the specific type of cooling
It quenches.
In order to further increase the dilution effect of copper ashes, in a preferred embodiment, the top of furnace body 11 is also set
It is equipped with additive entrance, additive entrance is being passed through additive.The additive can be vulcanizing agent, trapping agent etc., be conducive to
The matte grade in clinker is reduced, the rate of recovery of copper is further increased.
In a preferred embodiment, additive entrance and copper ashes import are co-located.It in this way can be same
Additive and copper ashes is added in one position, improves operation ease.Preferably, copper ashes dilution device further includes additive storage bin 50,
Additive storage bin 50 is connected with additive entrance, to provide additive.
In a preferred embodiment, copper ashes dilution treatment furnace 10 is additionally provided with offgas outlet, copper ashes dilution device
Further include waste-heat recovery device 30 and dust arrester installation 40, waste-heat recovery device 30 is provided with heat smoke import and cold flue gas outlet,
Heat smoke import is connected with offgas outlet；Dust arrester installation 40 is connected with cold flue gas outlet.It on the one hand can recycle in tail gas e in this way
Waste heat be used, on the one hand can also reduce granular material discharged, improve the feature of environmental protection of device, and can recycle in tail gas and take
The lead simple substance for being reduced out and zinc simple substance of band.
According to another aspect of the present invention, a kind of copper ashes dilution method is additionally provided, as shown in Figure 1, its device for using
Including copper ashes dilution treatment furnace 10 and Yarn feeding device 20, copper ashes dilution treatment furnace 10 is using electric heating or plasma heat as heat source, copper ashes
Dilution treatment furnace 10 is provided with copper ashes import, line feeding hole and puts sulfonium mouth；Copper ashes dilution method includes the following steps：By copper ashes into
Copper ashes a is passed through in copper ashes dilution treatment furnace 10 by mouth；Using Yarn feeding device 20 by line feeding hole into copper ashes dilution treatment furnace 10
Feed carbon dust line b；Under the action of electric heating or plasma heat, reduction dilution is carried out to copper ashes a using carbon dust line b and is handled.
Using copper ashes dilution method provided by the invention, carbon dust line is fed by copper ashes dilution treatment furnace using Yarn feeding device 20
In 10, reduction dilution processing is then carried out to copper ashes as heat source using electric heating or plasma heat.Compared to traditional ore-dressing technique, profit
Copper ashes is handled with above-mentioned apparatus, flow is simple, and it is the heat carried that can efficiently use copper ashes itself and be come out from front-end-of-line, and
The installation area is small, equipment cost is low.Meanwhile the device can by copper ashes lead oxides and zinc oxide one go forward side by side
Copper therein and a small amount of lead, zinc are recycled in row reduction treatment, and avoid the chemical agent added in such as ore-dressing technique, not only
Larger economic benefit is brought for enterprise, and greatly reduces security risk.Compared to pyrogenic process dilution technique, the present invention passes through
Yarn feeding device 20 can directly feed carbon dust line in the melt layer of the slag middle and lower part in furnace body.It can make in carbon dust line in this way
Melt contacts of the carbon dust more fully with slag middle and lower part, the function of reducing agent is played, in higher dilution dynamics
Under the conditions of the Cu oxide in copper ashes is reduced to copper matte regulus, wherein a small amount of lead oxides, zinc oxide can also be reduced to phase
The metal simple-substance answered enters in tail gas, to facilitate recycling.
Based on the above reason, the reduction dilution that copper ashes can be effectively improved using copper ashes dilution device provided by the invention is imitated
Rate, and have simultaneously flow it is short, it is at low cost, the advantageous effects such as the heavy metals such as lead zinc in slag can be recycled simultaneously.
In a preferred embodiment, copper ashes dilution treatment furnace 10 is ore-smelting electric furnace or plasma heating furnace.Utilize mine heat
Electric furnace or plasma heating furnace can provide stable heat for the dilution process of copper ashes, and the carbon dust line being added substantially can be complete
Reducing agent is served as, dilution dynamic conditions can be further improved, improves production efficiency.
In a preferred embodiment, in the step of restoring dilution processing, while to copper ashes dilution treatment furnace 10
In be passed through additive participate in reduction dilution processing；Preferably, additive is pyrite, sulphur and one kind or more in low matte
Kind.These additives are added and advantageously reduce matte grade in clinker, further increase the rate of recovery of copper.
Copper ashes dilution processing is carried out based on special wire injection procedure so that the copper ashes range that technique provided by the invention uses
Wider, in a preferred embodiment, copper content is 0.8~12wt% in copper ashes, and lead content is 0.5~10%, and zinc contains
Amount is 1.0~8%.
In order to further increase copper ashes dilution efficiency and copper (other metals such as a small amount of lead, zinc) the rate of recovery, additive
Addition be copper ashes weight 1~20%.It is highly preferred that the carbon dust weight in the carbon dust line of addition is denoted as A, it will be in copper ashes
Cu oxide, lead oxides and zinc oxide are reduced required theory and are denoted as B, wherein A/B=0.8~2.0 with carbon weight.This
Place's " Cu oxide, lead oxides and zinc oxide are reduced required theory with carbon weight in copper ashes " refers to by these oxides
It is reduced to the theoretical carbon amounts needed for metal simple-substance.
For the heat for more fully utilizing copper ashes itself to carry, energy consumption is saved, it is preferable that copper ashes is during copper weld pool
The liquid copper ashes of generation.The temperature of the liquid copper matte regulus of output is usually 1180~1250 DEG C during copper weld pool.Liquid copper ashes by
In chute or cinder ladle cross-docking to copper ashes dilution treatment furnace 10, liquid copper ashes waste heat is made full use of.
The carbon dust line used in the above-mentioned dilution method of the present invention can be presently commercially available carbon dust line, in a kind of preferred reality
It applies in mode, a diameter of 10~30mm of carbon dust line, the carbon content of carbon dust is 50~98% in carbon dust line.It is highly preferred that carbon dust
Line includes carbon dust sandwich layer and is coated on the metal sheath of carbon dust core layer surface, and metal sheath is iron sheet or aluminium skin, preferably outside metal
The thickness of skin is 0.1~0.5mm.Metal sheath in the melt for entering furnace body 11 after can occur high temperature melting, or with other gold
It is dissolved in slag after belonging to oxide reaction oxidation.
In a preferred embodiment, in the step of feeding carbon dust line, the line end of carbon dust line is placed at copper ashes
In melt layer in dilution treatment furnace 10, and the interior bottom wall of copper ashes dilution treatment furnace 10 is denoted as H away from slag layer height, by copper
Line end height of the interior bottom wall of slag dilution treatment furnace 10 away from carbon dust line is denoted as h, wherein h/H=1/3~1/2.In this way, on the one hand
Contact of the carbon dust line with melt is more abundant, and more preferably, the metal oxide in the middle part of another aspect molten bath completes reduction to dilution condition
After reaction, molten bath bottom can be entered by settlement action, relatively stable copper matte regulus layer is formed, facilitates discharge copper matte regulus.
As it was noted above, the copper ashes dilution technique based on the present invention has preferable dynamic conditions, can effectively shorten
The dilution period.In a preferred embodiment, the temperature of reduction dilution processing is 1200~1400 DEG C, and the time is 1~3h.
In a preferred embodiment, copper matte regulus c, clinker d and tail gas c have been obtained in the step of reduction dilution processing,
Copper ashes dilution method further includes the steps that carrying out Water Quenching to clinker d.Clinker d is discharged by slag tap, Water Quenching, due to stove
Slag d is finely ground, ore dressing, is not added with any medicament, and the heavy metals such as lead, zinc have recycled in slag, therefore clinker d is not belonging to endanger
It is useless, surrounding enviroment are influenced relatively low.
In a preferred embodiment, copper ashes dilution method further includes the steps that being post-processed to tail gas e, rear to locate
Managing step includes：Waste heat recovery processing is carried out to tail gas e, obtains cold flue gas；And processing of gathering dust is carried out to cold flue gas.Such one
The waste heat that aspect can recycle in tail gas is used, and on the one hand can also reduce granular material discharged, improves the feature of environmental protection of device,
And the lead simple substance generated by reduction carried in tail gas and zinc simple substance can be recycled.
Handle copper ashes using the method for the present invention, the Cu contents in clinker can with≤0.5%, Pb contents can with≤0.2%,
Zn contents can be with≤0.2%.Copper content can reach 40~80% in copper matte regulus, and follow-up process can be entered after discharge and (for example is blown
Refining process) production anode plate.
It should be noted that in actual dilution processing procedure, reducing agent can form CO or CO after participating in dilution2, tail
A part of combustible can be carried in gas secretly, this part combustible be located above slag also can generating unit divided combustion, carried for furnace body 11
Heating load.
The advantageous effect further illustrated the present invention by the following examples：
Embodiment 1
The dilution of copper ashes is carried out using the device of copper ashes dilution shown in Fig. 1, wherein dilution stove is as shown in Figure 1, furnace interior is set
It sets there are three electrode is heated, the volume for the part that electrode extends in cavity accounts for the 4% of cavity total measurement (volume), the power density of electrode
For 200kW/m2, process conditions are as follows：
Copper ashes is added in stove, promotes the temperature of slag in stove to 1400 DEG C；Start carbon dust line carrying out line feeding (above furnace body
It is provided with 5 line feeding holes), carbon dust line includes carbon dust sandwich layer and is coated on the iron sheet of carbon dust core layer surface, and thickness of scale is
0.1mm, a diameter of 10mm of carbon dust line, the carbon content in carbon dust are 98%；Carbon dust weight in the carbon dust line of addition is denoted as
Cu oxide, lead oxides and zinc oxide in copper ashes are reduced required theory and are denoted as B, wherein A/B=with carbon weight by A
0.8.During line feeding, the line end of carbon dust line is placed in the melt layer in copper ashes dilution treatment furnace, and will be at copper ashes dilution
The interior bottom wall of reason stove is denoted as H away from slag layer height, by line end height of the interior bottom wall of copper ashes dilution treatment furnace away from carbon dust line
It is denoted as h, wherein h/H=1/3；Pyrite is added in furnace body and further traps the copper metal in slag, addition is that smelting slag is total
The 3% of weight；Gained copper matte regulus Returning smelting stove.
Handling result：Year 200000 tons of processing copper weld pool slag, copper ashes cupric 3.5%, leaded 0.95%, contain zinc 2.76%；Copper
Slag treatment rear molding Copper in Slag 0.32%, leaded 0.06% contains zinc 0.12%；The copper grade of copper matte regulus is 35.12%.Whole system copper
The rate of recovery about 90.54%, lead recovery is about 98.5%, zinc recovery 96%.
Embodiment 2
The device and technique of use with embodiment 1, the difference is that：H/H=1/2.
Handling result：Year 200000 tons of processing copper weld pool slag, copper ashes cupric 3.5%, leaded 0.95%, contain zinc 2.76%；Copper
Clinker cupric 0.35% after Slag treatment, leaded 0.09%, contain zinc 0.17%；The copper grade of copper matte regulus is 33.81%.Whole system copper
The rate of recovery about 88.8%, lead recovery is about 95.6%, zinc recovery 93%.
Embodiment 3
The device and technique of use with embodiment 1, the difference is that：H/H=2/3.
Handling result：Year 200000 tons of processing copper weld pool slag, copper ashes cupric 3.5%, leaded 0.95%, contain zinc 2.76%；Copper
Clinker cupric 0.33% after Slag treatment, leaded 0.08%, contain zinc 0.14%；The copper grade of copper matte regulus is 34.25%.Whole system copper
The rate of recovery about 89.6%, lead recovery is about 97.0%, zinc recovery 94.5%.
Embodiment 4
The device and technique of use with embodiment 1, the difference is that：The addition of pyrite is copper ashes total weight
20%, A/B=2.0.
Handling result：Year 200000 tons of processing copper weld pool slag, copper ashes cupric 3.5%, leaded 0.95%, contain zinc 2.76%；Copper
Slag treatment rear molding Copper in Slag 0.30%, leaded 0.04% contains zinc 0.10%；The copper grade of copper matte regulus is 36.5%.Whole system copper
The rate of recovery about 91.3%, lead recovery is about 98.9%, zinc recovery 98.2%.
Embodiment 5
The device and technique of use with embodiment 1, the difference is that：The addition of pyrite is copper ashes total weight
1%, A/B=0.7.
Handling result：Year 200000 tons of processing copper weld pool slag, copper ashes cupric 3.5%, leaded 0.95%, contain zinc 2.76%；Copper
Clinker cupric 0.40% after Slag treatment, leaded 0.12%, contain zinc 0.21%；The copper grade of copper matte regulus is 30.54%.Whole system copper
The rate of recovery about 85.2%, lead recovery is about 87.0%, zinc recovery 91.3%.
Comparative example 1
The device and technique of use with embodiment 1, the difference is that：Do not use wire injection procedure, but by the carbon of equivalent
Powder is directly added in by charging aperture in furnace body.
Handling result：Year 200000 tons of processing copper weld pool slag, copper ashes cupric 3.5%, leaded 0.95%, contain zinc 2.76%；Copper
Clinker cupric 1.05% after Slag treatment, leaded 0.56%, contain zinc 0.98%；The copper grade of copper matte regulus is 23.38%.Whole system copper
The rate of recovery about 73.1%, lead recovery is about 63.8%, zinc recovery 74.7%.
It can be seen from the above description that the above embodiments of the present invention realize following technique effect：
Using copper ashes dilution device provided by the invention, carbon dust line is fed by copper ashes dilution treatment furnace using wire injection procedure
In, reduction dilution processing is then carried out to copper ashes as heat source using electric heating or plasma heat.Compared to traditional ore-dressing technique, utilize
Above-mentioned apparatus handles copper ashes, and flow is simple, and it is the heat carried that can efficiently use copper ashes itself and be come out from front-end-of-line, and should
Installation area is small, equipment cost is low.Meanwhile the device can by copper ashes lead oxides and zinc oxide carry out together
Copper therein and a small amount of lead, zinc are recycled in reduction treatment, and avoid the chemical agent added in such as ore-dressing technique, are not only
Enterprise brings larger economic benefit, and greatly reduces security risk.Compared to pyrogenic process dilution technique, the present invention is by feeding
Line apparatus can directly feed carbon dust line in the melt layer of the slag middle and lower part in furnace body.It can make the carbon in carbon dust line in this way
Melt contacts of the powder more fully with slag middle and lower part, play the function of reducing agent, in higher dilution dynamic conditions
The lower Cu oxide by copper ashes is reduced to copper matte regulus, wherein a small amount of lead oxides, zinc oxide can be also reduced to accordingly
Metal simple-substance enters in tail gas, to facilitate recycling.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (11)
1. a kind of copper ashes dilution device, which is characterized in that including：
Copper ashes dilution treatment furnace (10), using electric heating or plasma heat as heat source, the copper ashes dilution treatment furnace (10) is provided with copper
Slag import, line feeding hole and sulfonium mouth is put, the copper ashes import is described to put sulfonium mouth reduction dilution is discharged to be passed through the copper ashes
Handle obtained copper matte regulus；And
Yarn feeding device (20), for feeding carbon dust line into the copper ashes dilution treatment furnace (10) with to institute by the line feeding hole
It states copper ashes and carries out the reduction dilution processing.
2. copper ashes dilution device according to claim 1, which is characterized in that the copper ashes dilution treatment furnace (10) is mine heat
Electric furnace or plasma heating furnace.
3. copper ashes dilution device according to claim 1, which is characterized in that the copper ashes dilution treatment furnace (10) includes：
Furnace body (11), the copper ashes import and line feeding hole setting are arranged in the top of the furnace body (11), the sulfonium mouth of putting
Side-lower in the furnace body (11), and it is additionally provided with electrode hole on the furnace body (11)；And
Electrode (12) is heated, the heating electrode (12) extends to the content of the furnace body (11) across the electrode hole, to
To the furnace body (11) heat supply.
4. copper ashes dilution device according to claim 3, which is characterized in that the line feeding hole be it is multiple, it is multiple described to feed
String holes is distributed in the top of the furnace body (11).
5. copper ashes dilution device according to claim 4, which is characterized in that the line feeding hole is 3~8, the line feeding
The aperture in hole is 30~100mm.
6. copper ashes dilution device according to claim 3, which is characterized in that the furnace body (11) puts sulfonium relative to described
Mouthful a side lower part be additionally provided with slag tap, the slag tap is being discharged the stove of output in the reduction dilution processing procedure
Slag.
7. copper ashes dilution device according to claim 6, which is characterized in that the copper ashes dilution device further includes slag cooling
Device, the slag cooler cool down to the clinker that the slag tap is discharged.
8. the copper ashes dilution device according to any one of claim 3 to 7, which is characterized in that the top of the furnace body (11)
Portion is additionally provided with additive entrance, and the additive entrance is being passed through additive.
9. copper ashes dilution device according to claim 8, which is characterized in that the additive entrance and the copper ashes import
It is co-located.
10. copper ashes dilution device according to claim 8, which is characterized in that the copper ashes dilution device further includes addition
Agent feed bin (50), the additive storage bin (50) are connected with the additive entrance.
11. copper ashes dilution device according to any one of claim 1 to 7, which is characterized in that the copper ashes dilution processing
Stove (10) is additionally provided with offgas outlet, and the copper ashes dilution device further includes：
Waste-heat recovery device (30), is provided with heat smoke import and cold flue gas outlet, and the heat smoke import goes out with the tail gas
Mouth is connected；And
Dust arrester installation (40), the dust arrester installation (40) are connected with cold flue gas outlet.
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| CN201810639269.2A CN108531744A (en) | 2018-06-20 | 2018-06-20 | Copper ashes dilution device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810639269.2A CN108531744A (en) | 2018-06-20 | 2018-06-20 | Copper ashes dilution device |
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| CN108531744A true CN108531744A (en) | 2018-09-14 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
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| CN109295314A (en) * | 2018-11-02 | 2019-02-01 | 杭州电子科技大学 | A kind of device and method of the continuous dilution of Copper making clinker |
| CN112458299A (en) * | 2020-11-25 | 2021-03-09 | 中国恩菲工程技术有限公司 | Method and device for treating lead reducing slag |
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