CN109136560A - The method that hot copper ashes produces copper-based antibacterial alloy material is handled using bottom convertor - Google Patents
The method that hot copper ashes produces copper-based antibacterial alloy material is handled using bottom convertor Download PDFInfo
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- 239000010949 copper Substances 0.000 title claims abstract description 111
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 108
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 108
- 238000000034 method Methods 0.000 title claims abstract description 35
- 235000002918 Fraxinus excelsior Nutrition 0.000 title claims abstract description 31
- 239000002956 ash Substances 0.000 title claims abstract description 31
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 26
- 239000000956 alloy Substances 0.000 title claims abstract description 25
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 74
- 239000002893 slag Substances 0.000 claims abstract description 65
- 239000003345 natural gas Substances 0.000 claims abstract description 37
- 238000010790 dilution Methods 0.000 claims abstract description 34
- 239000012895 dilution Substances 0.000 claims abstract description 34
- 239000007921 spray Substances 0.000 claims abstract description 18
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- 230000004907 flux Effects 0.000 claims abstract description 16
- 238000004062 sedimentation Methods 0.000 claims abstract description 16
- 239000007789 gas Substances 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 239000003818 cinder Substances 0.000 claims abstract description 6
- 238000005457 optimization Methods 0.000 claims abstract description 6
- 238000011084 recovery Methods 0.000 claims abstract description 6
- 241000722270 Regulus Species 0.000 claims abstract description 4
- 238000007664 blowing Methods 0.000 claims abstract description 4
- 239000011449 brick Substances 0.000 claims abstract description 4
- 239000004035 construction material Substances 0.000 claims abstract description 4
- 239000000446 fuel Substances 0.000 claims abstract description 4
- 238000007499 fusion processing Methods 0.000 claims abstract description 4
- 239000004615 ingredient Substances 0.000 claims abstract description 4
- 238000006479 redox reaction Methods 0.000 claims abstract description 4
- RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium Chemical compound [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 43
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 28
- 239000001301 oxygen Substances 0.000 claims description 28
- 229910052760 oxygen Inorganic materials 0.000 claims description 28
- 238000003723 Smelting Methods 0.000 claims description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 21
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 18
- 239000000377 silicon dioxide Substances 0.000 claims description 18
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims description 17
- 229910021538 borax Inorganic materials 0.000 claims description 16
- 239000004328 sodium tetraborate Substances 0.000 claims description 16
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 16
- 239000003570 air Substances 0.000 claims description 14
- 229910052681 coesite Inorganic materials 0.000 claims description 11
- 229910052906 cristobalite Inorganic materials 0.000 claims description 11
- 229910052682 stishovite Inorganic materials 0.000 claims description 11
- 229910052905 tridymite Inorganic materials 0.000 claims description 11
- 235000012239 silicon dioxide Nutrition 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical group [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 claims description 7
- 239000006004 Quartz sand Substances 0.000 claims description 7
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 7
- 239000003638 chemical reducing agent Substances 0.000 claims description 7
- 239000010436 fluorite Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000002791 soaking Methods 0.000 claims description 7
- 239000011701 zinc Substances 0.000 claims description 7
- 229910052725 zinc Inorganic materials 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 238000013461 design Methods 0.000 claims description 4
- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 claims description 4
- 230000006641 stabilisation Effects 0.000 claims description 4
- 238000011105 stabilization Methods 0.000 claims description 4
- 239000011029 spinel Substances 0.000 claims description 3
- 229910052596 spinel Inorganic materials 0.000 claims description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 2
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 2
- 229910001882 dioxygen Inorganic materials 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 238000012546 transfer Methods 0.000 abstract description 2
- 241001417490 Sillaginidae Species 0.000 abstract 1
- 230000007812 deficiency Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000010583 slow cooling Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000003113 dilution method Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009856 non-ferrous metallurgy Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 239000002699 waste material Substances 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
- C22B7/001—Dry processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- 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
- C22B15/00—Obtaining copper
- C22B15/0026—Pyrometallurgy
- C22B15/0028—Smelting or converting
- C22B15/0052—Reduction smelting or converting
-
- 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)
- Environmental & Geological Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The method that hot copper ashes produces copper-based antibacterial alloy material is handled using bottom convertor, comprising the following steps: 1) hot copper weld pool slag is transported to novel dilution furnace with cinder ladle, be added from the feed opening of furnace body end；2) vulcanizing agent, melting, sedimentation are added in ingredient；3) combined type flux is added in fusion process, the viscosity of slag and temperature is made to maintain reasonable section；4) novel dilution furnace bottom spray gun sprays into gas, and according to the automatic tangential gas of process requirement, fuel heats in melt, completes redox reaction, separates slag sulfonium, and copper matte regulus enters fiery smart furnace and smelts；5) optimization spray gun carries out natural gas blowing copper ashes and realizes depth dilution, and valuable metal element is recycled from copper ashes and forms copper-based antibacterial alloy material, tailings can prepare the construction materials such as water-permeable brick；Advantage are as follows: improve the valuable element rate of recovery in copper weld pool slag；Realize resources effective utilization；Be conducive to interfacial mass transfer and interfacial chemical reaction, solve environmental issue.
Description
Technical field
The invention belongs to nonferrous metallurgy fields, more particularly, to the method using copper ashes production antibacterial material.
Background technique
Currently, the method for standard copper melting Slag treatment mainly has electric dilution method and slow cooling beneficiating method.The former be make it is hot
Copper weld pool slag is in electric dilution, and standing separates copper ashes and matte after reducing agent is added, and matte, which transports to, to be bessemerized, slag after dilution
Water quenching is carried out, tailings cupric is generally 0.6%~0.8%.The current Copper in Slag of slow cooling beneficiating method be preferably controlled in 0.2%-0.3% it
Between, the problems such as but there are cinder fields to take up a large area, and water resource is by pollution.There are following limitations for copper weld pool slag main methods
And deficiency, be mainly manifested in: (1) copper weld pool slag not yet realizes efficient utilization, and electric dilution is difficult to break through waste cupric 0.6%
Technical bottleneck.(2) Zha Xuan factory takes up a large area, and equipment is many and diverse, and operating cost is high, investment is more.(3) tailings is largely dumped
There are cinder field, not only land occupation but also environment was polluted, and also resulted in the huge wasting of resources.Therefore it is molten to need further to be developed new copper
Refine Slag treatment method, overcome the above deficiency, improve copper secondary resource level of comprehensive utilization, thoroughly solve resource utilization it is lower,
Valuable element is difficult to the problems such as synthetical recovery, realizes efficiently production.
Summary of the invention
It provides it is an object of the invention to avoid the deficiencies in the prior art and handles hot copper ashes production copper using bottom convertor
The method of the antibacterial alloy material of base.
The technical scheme is that the method that hot copper ashes produces copper-based antibacterial alloy material is handled using bottom convertor,
The following steps are included:
1) hot copper weld pool slag is hoisted to novel dilution furnace with cinder ladle, is added from the hot feed opening of furnace body end, realize copper
The appropriate dilution of smelting slag；
2) vulcanizing agent is added in ingredient, smelting temperature is 1200 DEG C -1300 DEG C, sedimentation time 30min-60min, vulcanizing agent
Additional amount is the 3%-9% of copper weld pool slag gross mass；
3) combined type flux is added in fusion process, makes the viscosity of slag reasonable section compared with temperature maintains one, maintain
Smelting temperature is 1200 DEG C -1300 DEG C, sedimentation time 30min-60min, and combined type flux additional amount is the total matter of copper weld pool slag
The 6%-19% of amount；
4) novel dilution furnace bottom spray gun sprays into gas, automatically switches oxygen, natural gas, air or nitrogen four according to process requirement
Kind gas, fuel are internally heated in melt, complete redox reaction, separate slag sulfonium, and copper matte regulus enters fiery smart furnace smelting；
5) natural gas blowing copper ashes is carried out using optimization structure spray gun and realizes depth dilution, valuable metal is directly recycled from copper ashes
Element forms copper-based antibacterial alloy material, and tailings can be used for preparing the construction materials such as water-permeable brick.
Copper weld pool slag main component is in step 1): cupric about 3%-4.7%(mass percent), iron content about 40.18%-
44.02%(mass percent), the mass percent containing zinc about 4.1%-5.7%(), contain silica about 15.6%-21.9%(mass hundred
Divide ratio).
Vulcanizing agent is troilite (FeS) in step 2, when FeS additional amount is 3%-9%, with the increase of FeS additional amount, slag
Middle Spinel reduces.
Combined type flux is that borax (B2O3), fluorite (CaF2) and quartz sand (SiO2), SiO2 additional amount are in step 3)
The 3%-12% of copper weld pool slag gross mass, with the increase of SiO2, matte drop in slag gradually grow up by cohesion, and sedimentation effect is good
It is good；B2O3 or CaF2 additional amount is the 3%-7% of copper weld pool slag gross mass, with the increase of additional amount, the matte drop on slag surface
It fades away.
Four kinds of gases are that spray gun sprays into oxygen, natural gas, air and nitrogen in step 4), are realized according to process requirements accurate
Control and switching in real time, make first dilution Copper in Slag be down to 0.6%-0.7%.
Reaction temperature is 1300 DEG C-1500 DEG C in step 5), and natural gas intake is 1.2-2.0 times of theoretical amount,
Basicity is 0.6-1.2, soaking time 30min-90min, and under optimum conditions after depth dilution, tailings cupric can be down to
0.03%-0.035%(mass percent), metal recovery rate (Fe+Cu) > 94% is formed simultaneously copper-based antibacterial alloy material.
The method that hot copper ashes produces copper-based antibacterial alloy material, preferred technical solution are handled using bottom convertor are as follows:
1) raw material is molten copper smelting slag, and flux is borax, fluorite and quartz sand, and vulcanizing agent is troilite, and reducing agent is natural
Gas, cupric about 3%-4.7%(mass percent in copper weld pool slag), iron content about 40.18%-44.02%(mass percent), about containing zinc
4.1%-5.7%(mass percent), the mass percent containing silica about 15.6%-21.9%()；
2) it when in-furnace temperature rises to design requirement, carries out making molten bath operation, after completing to molten bath, starts to feed from oxygen rifle natural
Gas, oxygen and air carry out heat supply, and furnace body are transferred to production position, while controlling oxygen and natural gas ratio as 1.7:1(volume
Than), oxygen-rich concentration 60% is controlled, after stabilization to be produced, according to process requirement, four kinds of oxygen, natural gas, air or nitrogen gas
Body carries out proportion switch；
3) smelting temperature is 1280 DEG C, and the sedimentation time is respectively 60min, iron silicon ratio 1.6:1(mass ratio) under conditions of, respectively plus
Enter 10%(mass percent) SiO2,6% mass percent) B2O3 or CaF2, while 8%(mass percent is added) FeS, oxygen
Gas and natural gas Ratio control are in 1.7:1(volume ratio), first dilution Copper in Slag reaches 0.62%(mass percent)；
5) under optimum conditions, reaction temperature is 1465 DEG C, basicity 1.1, soaking time 60min, and natural gas intake is
1.4 times of theoretical amount realize the depth dilution of copper ashes, form copper-based antibacterial alloy material, and the tailings cupric of generation is down to
0.032%(mass percent).
Compared with prior art, the advantages of originally knowing fairly well is:
(1) the valuable element rate of recovery in copper weld pool slag is improved, it is horizontal to promote comprehensive utilization of resources.
(2) the technical issues of solving the reduction molten iron cupric application of long-standing problem copper ashes, realizes resources effective utilization.
(3) vapour phase reduction agent is used, is more advantageous to interfacial mass transfer and interfacial chemical reaction, while reducing pollutant
It generates, solves environmental issue.
Detailed description of the invention
Fig. 1 is flow chart of the invention.
Specific embodiment:
The method that hot copper ashes produces copper-based antibacterial alloy material is handled using bottom convertor, comprising the following steps:
1) hot copper weld pool slag is hoisted to novel dilution furnace with cinder ladle, is added from the hot feed opening of furnace body end, realize copper
The appropriate dilution of smelting slag；
2) vulcanizing agent is added in ingredient, smelting temperature is 1200 DEG C -1300 DEG C, sedimentation time 30min-60min, vulcanizing agent
Additional amount is the 3%-9% of copper weld pool slag gross mass；
3) combined type flux is added in fusion process, makes the viscosity of slag reasonable section compared with temperature maintains one, maintain
Smelting temperature is 1200 DEG C -1300 DEG C, sedimentation time 30min-60min, and combined type flux additional amount is the total matter of copper weld pool slag
The 6%-19% of amount；
4) novel dilution furnace bottom spray gun sprays into gas, automatically switches oxygen, natural gas, air or nitrogen four according to process requirement
Kind gas, fuel are internally heated in melt, complete redox reaction, separate slag sulfonium, and copper matte regulus enters fiery smart furnace smelting；
5) natural gas blowing copper ashes is carried out using optimization structure spray gun and realizes depth dilution, valuable metal is directly recycled from copper ashes
Element forms copper-based antibacterial alloy material, and tailings can be used for preparing the construction materials such as water-permeable brick.
Copper weld pool slag main component is in step 1): cupric about 3%-4.7%(mass percent), iron content about 40.18%-
44.02%(mass percent), the mass percent containing zinc about 4.1%-5.7%(), contain silica about 15.6%-21.9%(mass hundred
Divide ratio).
Vulcanizing agent is troilite (FeS) in step 2, when FeS additional amount is 3%-9%, with the increase of FeS additional amount, slag
Middle Spinel reduces.
Combined type flux is that borax (B2O3), fluorite (CaF2) and quartz sand (SiO2), SiO2 additional amount are in step 3)
The 3%-12% of copper weld pool slag gross mass, with the increase of SiO2, matte drop in slag gradually grow up by cohesion, and sedimentation effect is good
It is good；B2O3 or CaF2 additional amount is the 3%-7% of copper weld pool slag gross mass, with the increase of additional amount, the matte drop on slag surface
It fades away.
Four kinds of gases are that spray gun sprays into oxygen, natural gas, air and nitrogen in step 4), are realized according to process requirements accurate
Control and switching in real time, make first dilution Copper in Slag be down to 0.6%-0.7%.
Reaction temperature is 1300 DEG C-1500 DEG C in step 5), and natural gas intake is 1.2-2.0 times of theoretical amount,
Basicity is 0.6-1.2, soaking time 30min-90min, and under optimum conditions after depth dilution, tailings cupric can be down to
0.03%-0.035%(mass percent), metal recovery rate (Fe+Cu) > 94% is formed simultaneously copper-based antibacterial alloy material.
Embodiment 1:
Copper weld pool slag main component cupric about 4.5%, iron content about 43.8% contain zinc about 5.6%, contain silica about 20.8%.
1) raw material is molten copper smelting slag, and flux is borax, fluorite and quartz sand, and vulcanizing agent is troilite, and reducing agent is
Natural gas.
2) it when in-furnace temperature rises to design requirement, carries out making molten bath operation, after completing to molten bath, starts to feed from oxygen rifle
Natural gas, oxygen and air carry out heat supply, and furnace body is transferred to production position, while controlling oxygen and natural gas ratio is 1.6, control
Oxygen-rich concentration 60% processed, after stabilization to be produced, according to process requirement, four kinds of oxygen, natural gas, air or nitrogen gases are carried out
Proportion switch.
It 3) is 1250 DEG C respectively in smelting temperature, the sedimentation time is respectively 30 min, under conditions of iron silicon ratio 1.7, is carried out
The influence test to slag dilution effect such as flux, vulcanizing agent and reducing agent, gropes optimal synthesis investigative technique condition.
4) under the conditions of the complex art of optimization, i.e. 1250 DEG C of smelting temperature, sedimentation time 30 min, Fe/SiO2=
1.7, it is separately added into 6% SiO2、5%B2O3Or CaF2, while be added 6% FeS, oxygen and natural gas Ratio control at 1.6,
First dilution Copper in Slag can reach 0.67%.
5) under optimum conditions, reaction temperature is 1425 DEG C, basicity 1.0, soaking time 30min, and natural gas is passed through
Amount is 1.3 times of theoretical amount, realizes the depth dilution of copper ashes under this condition, and tailings cupric is down to 0.034%.
Embodiment 2:
Copper weld pool slag main component cupric about 3.9%, iron content about 42.3% contain zinc about 4.6%, contain silica about 20.5%.
1) raw material is molten copper smelting slag, and flux is borax, fluorite and quartz sand, and vulcanizing agent is troilite, and reducing agent is
Natural gas.
2) it when in-furnace temperature rises to design requirement, carries out making molten bath operation, after completing to molten bath, starts to feed from oxygen rifle
Natural gas, oxygen and air carry out heat supply, and furnace body is transferred to production position, while controlling oxygen and natural gas ratio is 1.7, control
Oxygen-rich concentration 60% processed, after stabilization to be produced, according to process requirement, four kinds of oxygen, natural gas, air or nitrogen gases are carried out
Proportion switch.
It 3) is 1280 DEG C respectively in smelting temperature, the sedimentation time is respectively 60 min, under conditions of iron silicon ratio 1.6, is carried out
The influence test to slag dilution effect such as flux, vulcanizing agent and reducing agent, gropes optimal synthesis investigative technique condition.
4) under the conditions of the complex art of optimization, i.e., 1280 DEG C of smelting temperature, sedimentation time 60 min, Fe/SiO2=
1.6, it is separately added into 10% SiO2,6%B2O3 or CaF2, while 8% FeS is added, oxygen and natural gas Ratio control are 1.7
When, first dilution Copper in Slag can reach 0.62%.
5) under optimum conditions, reaction temperature is 1465 DEG C, basicity 1.1, soaking time 60min, and natural gas is passed through
Amount is 1.4 times of theoretical amount, realizes the depth dilution of copper ashes under this condition, forms copper-based antibacterial alloy material, which can
Special stainless steel enterprise is produced for downstream, and raw material are provided.The tailings cupric generated simultaneously is down to 0.032%, can be used for making and build
Build material.
In conclusion the present invention handles the method that hot copper ashes produces copper-based antibacterial alloy material using bottom convertor, solve
The problems such as environmental pollution caused by copper ashes is stored up for a long time, realizes the high efficiente callback of copper secondary resource, promotes China Copper making neck
Domain comprehensive utilization of resources is horizontal, may advantageously facilitate the sustainable development of coloured industry, has good social benefit.
Claims (7)
1. handling the method that hot copper ashes produces copper-based antibacterial alloy material using bottom convertor, it is characterised in that including following step
It is rapid:
1) hot copper weld pool slag is hoisted to novel dilution furnace with cinder ladle, is added from the hot feed opening of furnace body end, realize copper
The appropriate dilution of smelting slag；
2) vulcanizing agent is added in ingredient, smelting temperature is 1200 DEG C -1300 DEG C, sedimentation time 30min-60min, vulcanizing agent
Additional amount is the 3%-9% of copper weld pool slag gross mass；
3) combined type flux is added in fusion process, makes the viscosity of slag reasonable section compared with temperature maintains one, maintain
Smelting temperature is 1200 DEG C -1300 DEG C, sedimentation time 30min-60min, and combined type flux additional amount is the total matter of copper weld pool slag
The 6%-19% of amount；
4) novel dilution furnace bottom spray gun sprays into gas, automatically switches oxygen, natural gas, air or nitrogen four according to process requirement
Kind gas, fuel are internally heated in melt, complete redox reaction, separate slag sulfonium, and copper matte regulus enters fiery smart furnace smelting；
5) natural gas blowing copper ashes is carried out using optimization structure spray gun and realizes depth dilution, valuable metal is directly recycled from copper ashes
Element forms copper-based antibacterial alloy material, and tailings can be used for preparing the construction materials such as water-permeable brick.
2. according to claim 1 handle the method that hot copper ashes produces copper-based antibacterial alloy material using bottom convertor,
Be characterized in that: copper weld pool slag main component is in step 1): cupric about 3%-4.7%(mass percent), iron content about 40.18%-
44.02%(mass percent), the mass percent containing zinc about 4.1%-5.7%(), contain silica about 15.6%-21.9%(mass hundred
Divide ratio).
3. according to claim 1 handle the method that hot copper ashes produces copper-based antibacterial alloy material using bottom convertor,
Be characterized in that: vulcanizing agent is troilite (FeS) in step 2, when FeS additional amount is 3%-9%, with the increase of FeS additional amount,
Spinel reduces in slag.
4. according to claim 1 handle the method that hot copper ashes produces copper-based antibacterial alloy material using bottom convertor,
Be characterized in that: combined type flux is that borax (B2O3), fluorite (CaF2) and quartz sand (SiO2), SiO2 additional amount are in step 3)
The 3%-12% of copper weld pool slag gross mass, with the increase of SiO2, matte drop in slag gradually grow up by cohesion, and sedimentation effect is good
It is good；B2O3 or CaF2 additional amount is the 3%-7% of copper weld pool slag gross mass, with the increase of additional amount, the matte drop on slag surface
It fades away.
5. according to claim 1 handle the method that hot copper ashes produces copper-based antibacterial alloy material using bottom convertor,
Be characterized in that: four kinds of gases are that spray gun sprays into oxygen, natural gas, air and nitrogen in step 4), realize essence according to process requirements
Quasi- control and switching in real time, make first dilution Copper in Slag be down to 0.6%-0.7%.
6. according to claim 1 handle the method that hot copper ashes produces copper-based antibacterial alloy material using bottom convertor,
Be characterized in that: reaction temperature is 1300 DEG C-1500 DEG C in step 5), and natural gas intake is the 1.2-2.0 of theoretical amount
Times, basicity 0.6-1.2, soaking time 30min-90min, under optimum conditions after depth dilution, tailings cupric can drop
To 0.03%-0.035%(mass percent), metal recovery rate (Fe+Cu) > 94% is formed simultaneously copper-based antibacterial alloy material.
7. according to claim 1 handle the method that hot copper ashes produces copper-based antibacterial alloy material using bottom convertor,
It is characterized in that preferred technical solution are as follows:
1) raw material is molten copper smelting slag, and flux is borax, fluorite and quartz sand, and vulcanizing agent is troilite, and reducing agent is natural
Gas, cupric about 3%-4.7%(mass percent in copper weld pool slag), iron content about 40.18%-44.02%(mass percent), about containing zinc
4.1%-5.7%(mass percent), the mass percent containing silica about 15.6%-21.9%()；
2) it when in-furnace temperature rises to design requirement, carries out making molten bath operation, after completing to molten bath, starts to feed from oxygen rifle natural
Gas, oxygen and air carry out heat supply, and furnace body are transferred to production position, while controlling oxygen and natural gas ratio as 1.7:1(volume
Than), oxygen-rich concentration 60% is controlled, after stabilization to be produced, according to process requirement, four kinds of oxygen, natural gas, air or nitrogen gas
Body carries out proportion switch；
3) smelting temperature is 1280 DEG C, and the sedimentation time is respectively 60min, iron silicon ratio 1.6:1(mass ratio) under conditions of, respectively plus
Enter 10%(mass percent) SiO2,6% mass percent) B2O3 or CaF2, while 8%(mass percent is added) FeS, oxygen
Gas and natural gas Ratio control are in 1.7:1(volume ratio), first dilution Copper in Slag reaches 0.62%(mass percent)；
5) under optimum conditions, reaction temperature is 1465 DEG C, basicity 1.1, soaking time 60min, and natural gas intake is
1.4 times of theoretical amount realize the depth dilution of copper ashes, form copper-based antibacterial alloy material, and the tailings cupric of generation is down to
0.032%(mass percent).
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