CN109880955A - Short route handles the method for smelting and smelting apparatus of iron-based polymetallic ore material - Google Patents
Short route handles the method for smelting and smelting apparatus of iron-based polymetallic ore material Download PDFInfo
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- 238000003723 Smelting Methods 0.000 title claims abstract description 134
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 130
- 238000000034 method Methods 0.000 title claims abstract description 74
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 64
- 239000000463 material Substances 0.000 title claims abstract description 54
- 230000009467 reduction Effects 0.000 claims abstract description 145
- 238000002844 melting Methods 0.000 claims abstract description 121
- 230000008018 melting Effects 0.000 claims abstract description 121
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 61
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims abstract description 61
- 239000007788 liquid Substances 0.000 claims abstract description 37
- 238000012545 processing Methods 0.000 claims abstract description 34
- 239000002893 slag Substances 0.000 claims abstract description 32
- 239000000446 fuel Substances 0.000 claims abstract description 29
- 229910052751 metal Inorganic materials 0.000 claims abstract description 28
- 239000002184 metal Substances 0.000 claims abstract description 28
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 26
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 25
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000001301 oxygen Substances 0.000 claims abstract description 24
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 24
- 239000010936 titanium Substances 0.000 claims abstract description 24
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 24
- 230000004907 flux Effects 0.000 claims abstract description 17
- 238000005192 partition Methods 0.000 claims abstract description 16
- 239000007921 spray Substances 0.000 claims description 60
- 238000011084 recovery Methods 0.000 claims description 47
- 238000011946 reduction process Methods 0.000 claims description 34
- 230000008569 process Effects 0.000 claims description 22
- 239000002918 waste heat Substances 0.000 claims description 22
- 239000003546 flue gas Substances 0.000 claims description 17
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 16
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 11
- 239000000428 dust Substances 0.000 claims description 10
- 239000007790 solid phase Substances 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 238000005485 electric heating Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 239000003245 coal Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 239000003345 natural gas Substances 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 239000003034 coal gas Substances 0.000 claims description 2
- 238000007499 fusion processing Methods 0.000 abstract description 23
- 238000010790 dilution Methods 0.000 abstract description 12
- 239000012895 dilution Substances 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000000926 separation method Methods 0.000 abstract description 7
- 238000011017 operating method Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 description 12
- 229910052500 inorganic mineral Inorganic materials 0.000 description 8
- 239000011707 mineral Substances 0.000 description 8
- 238000003860 storage Methods 0.000 description 8
- 239000002994 raw material Substances 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 5
- 150000002739 metals Chemical class 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000012263 liquid product Substances 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 239000012265 solid product Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 229910003082 TiO2-SiO2 Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/12—Making spongy iron or liquid steel, by direct processes in electric furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
- F27B3/04—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces of multiple-hearth type; of multiple-chamber type; Combinations of hearth-type furnaces
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture Of Iron (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention provides method of smelting and smelting apparatus that a kind of short route handles iron-based polymetallic ore material.The smelting system used in the method for smelting includes bath smelting device, partition wall is provided in the molten bath of bath smelting device, molten bath is divided into melting zone and electrothermal reduction area, and the bottom of melting zone is connected to electrothermal reduction area, method of smelting includes: that iron-based polymetallic ore material, fuel, flux and oxygen-enriched air are delivered in melting zone to carry out fusing and partial reduction, obtains molten liquid；Molten liquid and reducing agent are delivered to electrothermal reduction area and carry out reduction melting processing, obtains the molten iron and titanium slag containing vanadium.Occupied area needed for this aspect makes fusion process is small, and the configuration height for reducing bath smelting device is poor, additionally it is possible to reduce capital investment；On the other hand the operating procedure that melt discharge can also be saved and be added, improves production operation efficiency.Melting and reduction dilution operation are taken into account in molten bath, are conducive to the separation of titanium slag and vanadium-bearing hot metal.
Description
Technical field
The present invention relates to metal smelt fields, handle the molten of iron-based polymetallic ore material in particular to a kind of short route
Smelting method and smelting apparatus.
Background technique
Vanadium titano-magnetite is a kind of ore of more difficult smelting.The v-bearing titanomagnetite smelting technique of mature application is main at present
There are two types of: first is that blast furnace process, mainly first vanadium titano-magnetite is added in blast furnace after oversintering or pelletizing, recycling iron with
Vanadium.The steel mill, Nizhni Tagil etc. for climbing steel and hold steel, Russia for mainly having China smelted at present using the technique.Second is that
Rotary kiln-electric furnace process.It mainly uses rotary kiln prereduction vanadium titano-magnetite iron ore concentrate, obtains calcining；Then calcining is added
Enter and carry out reduction melting in electric furnace, to recycle iron and vanadium.At present using the technique smelted mainly have New Zealand's steel and
South Africa Granville etc..And other v-bearing titanomagnetite smelting techniques, mostly in research or industrial test stage, and it is not implemented
The industrial production of scale.
Blast furnace process is method of the earliest exploitation for handling vanadium titano-magnetite iron ore concentrate, can recycle about 90% iron,
About 50% vanadium, but titanium elements fail to recycle.The major advantage of blast furnace process processing vanadium titano-magnetite is high production efficiency, production
Scale is big, the disadvantage is that comprehensive energy consumption is high, long flow path, slag iron difficulty are divided, dry slag and desulphurizing ability are low.Furthermore blast furnace process is to TiO in slag2
Content requirement it is higher, generally will be lower than 25%.
The characteristics of rotary kiln-electric furnace process is the vanadium titano-magnetite concentrate that obtained through ore dressing can be directly used in smelting, process
It is short, iron, vanadium the rate of recovery be above blast furnace process, but also fail to recycle titanium slag at present.The prior art (CN107858502A)
A kind of vanadium titano-magnetite processing method is provided, the processing method is first rough to vanadium titano-magnetite successively to carry out mine choosing, rotary kiln
It prereduction, electric furnace reduction melting and bessemerizes, obtains vanadium slag and half steel.Compared to blast furnace process, rotary kiln-electric furnace process synthesis
Low energy consumption, and without coking, sintering, environmental emission index is more excellent.Rotary kiln-electric furnace process the disadvantage is that comprehensive energy consumption is still higher,
And it is strong to the dependence of electric power energy, it is difficult to promote in the area that electric power resource is deficient or power cost is high.
Presence in view of the above problems, it is necessary to which a kind of short route for iron-based polymetallic ore material and low energy consumption are provided
Method of smelting.
Summary of the invention
The main purpose of the present invention is to provide method of smelting and meltings that a kind of short route handles iron-based polymetallic ore material
Device, to solve the problems, such as long flow path existing for existing smelting technology and energy consumption is high.
To achieve the goals above, according to an aspect of the invention, there is provided a kind of short route handles iron-based more metals
The method of smelting of mineral aggregate, iron-based polymetallic ore material include ferro element, titanium elements and vanadium, the melting system used in method of smelting
System includes bath smelting device, is provided with partition wall in the molten bath of bath smelting device, molten bath is divided into melting zone and electric heating also
Former area, and the bottom of melting zone is connected to electrothermal reduction area, molten bath is additionally provided with the first feed opening being connected to melting zone and
Two feed openings and the slag-drip opening being connected with electrothermal reduction area and metal discharge mouth, and the first feed opening is arranged in bath smelting
The top of device, the second feed opening are arranged on the side wall of bath smelting device, and method of smelting includes: by iron-based polymetallic ore
Material, fuel, flux and oxygen-enriched air, which are delivered in melting zone, carries out fusing and partial reduction, obtains molten liquid；By molten liquid and
Reducing agent is delivered to electrothermal reduction area and carries out reduction melting processing, obtains the molten iron and titanium slag containing vanadium.
Further, fusing and partial reduction process include: by iron-based polymetallic ore material and flux through bath smelting device
The first feed opening and/or the second feed opening be added in melting zone, and by the nozzle of at least one the first side-blown spray gun through second
Feed opening is immersed in below the solid-phase material of melting zone, and fuel and oxygen-enriched air are then sprayed into melting using the first side-blown spray gun
Area obtains molten liquid to carry out the process of melting and partial reduction；Preferably, fuel is selected from natural gas, coal gas and fine coal composition
One of group or a variety of；Preferably, oxygen-enriched air is that the volumetric concentration of oxygen is greater than 50% gas.
Further, the step of reduction melting is handled further include: molten liquid is delivered to electrothermal reduction area, then uses second
Side-blown spray gun and/or top-blown spray gun spray reductant into the ullage in electrothermal reduction area.
Further, the temperature of reduction melting processing is 1450~1650 DEG C；Preferably, the temperature of reduction melting processing is
1500~1600 DEG C.
Further, before carrying out fusing and partial reduction process, method of smelting further include: to iron-based polymetallic ore
Material, fuel, flux and reducing agent are pre-processed respectively, so that the granularity of iron-based polymetallic ore material, fuel, flux and reducing agent
≤ 50mm, water content≤15wt%.
Further, bath smelting system further includes the circle being connected respectively with the first feed opening and/or the second feed opening
Cylinder mixing device, before during carrying out fusing and partial reduction, method of smelting further includes being carried out using cylinder mixing device
Mixing.
Further, smelting system further includes waste-heat recovery device, and method of smelting further includes the steps that waste heat recycles, waste heat
The step of recycling includes: to recycle the cigarette generated during fusing and partial reduction process and reduction melting using waste-heat recovery device
Heat in gas；Preferably, after waste heat recovery processing, the temperature of flue gas is down to 100~200 DEG C；Preferably, waste heat recycling dress
It is set to waste heat boiler.
Further, smelting system further includes dust arrester installation, method of smelting further include: flue gas is carried out waste heat recovery processing
Afterwards, processing of gathering dust is carried out using dust arrester installation.
Further, the difference in height of the bottom wall of melting zone and the bottom wall in electrothermal reduction area is 0~500mm, it is preferable that melting
The height of the bottom wall in area is higher than the bottom wall in electrothermal reduction area, more preferably 150~500mm；Preferably, the bottom wall of melting zone and electricity
The gradient for heat-treating the carrier between the bottom wall in area is 0~90 °, more preferably 30~60 °.
Further, iron-based polymetallic ore material is selected from vanadium titano-magnetite and/or sea sand mine.
This application provides the bath smelting device that a kind of short route handles iron-based polymetallic ore material, bath smelting device
Molten bath is divided into melting zone and electrothermal reduction area by the partition wall for being internally provided with molten bath and being arranged in molten bath, partition wall, melting zone
Bottom is connected to electrothermal reduction area, molten bath be additionally provided with the first feed opening being connected to melting zone and the second feed opening and with electricity
Thermal reduction the area slag-drip opening and metal discharge mouth that are connected, and the first feed opening is arranged in the top of bath smelting device, second
Feed opening is arranged on the side wall of bath smelting device.
Further, melting zone includes at least one first side-blown spray gun, and the nozzle of the first side-blown spray gun is through the second charging
Mouth is immersed in the liquid level of melting zone hereinafter, to spray into fuel and oxygen-enriched air to melting zone.
Further, electrothermal reduction area includes: at least one electrode, at least one second side-blown spray gun and at least one top
Rifle is blowed and sprayed, the end of electrode is located at below the solid-phase material in electrothermal reduction area, is used for electrothermal reduction process heat supply；Second is side-blown
The nozzle of spray gun and the nozzle of top-blown spray gun are respectively positioned on the ullage in electrothermal reduction area, for spraying reductant into electrothermal reduction
Area；Preferably, each second side-blown spray gun is separately positioned on the opposite side wall of reducing zone.
Further, the difference in height of the bottom wall of melting zone and the bottom wall in electrothermal reduction area is 0~500mm, it is preferable that melting
The height of the bottom wall in area is higher than the bottom wall in electrothermal reduction area, more preferably 150~500mm.
Further, the gradient of the carrier between the bottom wall of melting zone and the bottom wall in electrothermal reduction area is 0~90 °.
Further, bath smelting device is additionally provided with flue, and molten bath corresponding with electrothermal reduction area is arranged in flue
Top.
Apply the technical scheme of the present invention, in above-mentioned method of smelting, above-mentioned fusion process, fusing and partial reduction process and
Electrothermal reduction process carries out in the same bath smelting device.Occupied area needed for this aspect makes above-mentioned fusion process
Small, the configuration height for reducing bath smelting device is poor, while can also reduce the capital investment to bath smelting device；It is another
The operating procedure that aspect can also save melt discharge and be added, improves production operation efficiency, reduces operator and corresponding
Work tool consumption.In addition, fusing and partial reduction process and electrothermal reduction process are completed in the same bath smelting device, electricity
The heat that molten liquid can also be used in thermal reduction area maintains higher temperature, the consumption of electric energy when reducing individually reduction dilution；It is molten
Melting and reduction dilution operation are taken into account in pond, and storage melt amount is relatively large in furnace, can increase the storage slag time, be conducive to titanium slag and
The separation of vanadium-bearing hot metal；The flue gas that two processes generate simultaneously can reduce two sets of smoke processing systems of construction with mixed processing
Investment.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 shows the melting of the iron-based polymetallic ore material of processing provided according to a preferred embodiment of the present invention
The flow diagram of method；And
Fig. 2 shows the molten baths of the iron-based polymetallic ore material of processing provided according to a preferred embodiment of the present invention
The structural schematic diagram of smelting apparatus；
Fig. 3 shows the molten bath of the iron-based polymetallic ore material of processing provided according to a preferred embodiment of the present invention
The A-A side view of smelting system；
Fig. 4 shows the molten bath of the iron-based polymetallic ore material of processing provided according to a preferred embodiment of the present invention
The C-C side view of smelting system.
Wherein, the above drawings include the following reference numerals:
10, melting zone；11, the first side-blown spray gun；101, the first feed opening；102, the second feed opening；20, electrothermal reduction
Area；21, electrode；22, the second side-blown spray gun；23, top-blown spray gun；24, flue；201, slag-drip opening；202, metal discharge mouth；30,
Partition wall.
Specific embodiment
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.Below in conjunction with embodiment, the present invention will be described in detail.
As described in background technique, long flow path existing for existing smelting technology and the high problem of energy consumption.To understand
Certainly above-mentioned technical problem, this application provides the method for smelting that a kind of short route handles iron-based polymetallic ore material, iron-based more metals
Mineral aggregate includes ferro element, titanium elements and vanadium, and the smelting system used in the method for smelting includes bath smelting device, molten bath
It is provided with partition wall 30 in the molten bath of smelting apparatus, molten bath is divided into melting zone 10 and electrothermal reduction area 20, and melting zone 10
Bottom is connected with electrothermal reduction area 20, and bath smelting device is provided with the first feed opening 101 being connected to melting zone 10 and
Two feed openings 102 and the slag-drip opening 201 and metal discharge mouth 202 being connected with electrothermal reduction area 20, and the first feed opening 101
The top of bath smelting device is set, and the second feed opening 102 is arranged on the side wall of bath smelting device；First feed opening
101, the top of bath smelting device, the second feed opening is arranged in the second feed opening 102 and slag-drip opening 201, the first feed opening 101
102 are arranged on the side wall of bath smelting device；Mixing outlet is connected with the first feed opening 101 and/or the second feed opening 102
It is logical, as shown in Figure 1, above-mentioned method of smelting includes: that iron-based polymetallic ore material, fuel, flux and oxygen-enriched air are delivered to melting
Melting and partial reduction are carried out in area 10, obtain molten liquid；Molten liquid and reducing agent are delivered to electrothermal reduction area 20 to be gone back
Former melting processing, obtains the molten iron and titanium slag containing vanadium.
Molten bath is divided into melting zone 10 and electrothermal reduction area 20 by setting partition wall 30, so that fusing and partial reduction
Process and electrothermal reduction process can be completed in a smelting apparatus, while the setting of partition wall 30 can also inhibit melting zone 10
In unreacted material enter electrothermal reduction area 20.During above-mentioned fusing and partial reduction, raw material is through the first feed opening 101
And/or second feed opening 102 melting zone 10 is added, provide heat by fuel and Air combustion with oxygen enrichment, make iron-based polymetallic ore
Melting and partial reduction occur for material, and the addition of flux can make the impurity in iron-based polymetallic ore material first with iron in the form of titanium slag
Element separation, while fusing point is reduced, obtain molten liquid；After molten liquid is delivered to electrothermal reduction area 20, reducing agent and molten liquid
Ferro element and vanadium etc. are reduced, while under dilution effect, liquid product and solid product in reduzate system into
Row separation, obtains the molten iron and titanium slag containing vanadium, is correspondingly discharged through slag-drip opening 201 and metal discharge mouth 202.
Above-mentioned fusion process, fusing and partial reduction process and electrothermal reduction process in the same bath smelting device into
Row.Occupied area needed for this aspect makes above-mentioned fusion process is small, and the configuration height for reducing bath smelting device is poor, together
When can also reduce capital investment to bath smelting device；On the other hand the operation step that melt discharge can also be saved and be added
Suddenly, production operation efficiency is improved, operator and the consumption of corresponding Work tool are reduced.In addition, fusing and partial reduction process and
Electrothermal reduction process is completed in the same bath smelting device, and the heat that molten liquid can also be used in electrothermal reduction area 20 maintains
Higher temperature, the consumption of electric energy when reducing individually reduction dilution；Melting and reduction dilution operation are taken into account in molten bath, and storage is molten in furnace
The scale of construction is relatively large, can increase the storage slag time, be conducive to the separation of titanium slag and vanadium-bearing hot metal；The cigarette that two processes generate simultaneously
Gas can reduce the investment of two sets of smoke processing systems of construction with mixed processing.Preferably, that mentions in the application is iron-based mostly golden
Belong to mineral aggregate and is selected from vanadium titano-magnetite and/or sea sand mine.
Have that process is short, low energy consumption, at low cost and ferro element and vanadium rate of recovery height etc. are excellent using above-mentioned method of smelting
Point.In a kind of preferred embodiment, above-mentioned fusing and partial reduction process include: by iron-based polymetallic ore material and flux through molten
First feed opening 101 of pond smelting apparatus and/or the second feed opening 102 are added in melting zone 10, and by least one the first side
The nozzle for blowing and spraying rifle 11 is immersed in below the solid-phase material of melting zone 10 through the second feed opening 102, then uses the first side-blown spray
Fuel and oxygen-enriched air are sprayed into melting zone 10 by rifle 11, to carry out melting and partial reduction process, obtain molten liquid.Using first
Side-blown spray gun 11 can form the solid-phase material lower section that fuel and oxygen-enriched air spray into melting zone 10 by force to molten liquid therein
Strong agitation, thus be conducive to improve mass-and heat-transfer efficiency, meanwhile, this is also beneficial to the rate of recovery for improving subsequent vanadium etc..
In above-mentioned method of smelting, fuel can use type commonly used in the art.Preferably, fuel is selected from natural gas, coal
One of group of gas and fine coal composition is a variety of.Preferably, combustion coefficient control is 0.4~0.65.
In above-mentioned method of smelting, oxygen-enriched air refers to that the content of oxygen volume is higher than the gas of 21vol%, in order to make fuel
It more fully burns, to improve the efficiency that fuel is converted into thermal energy, it is preferable that oxygen-enriched air is that the volumetric concentration of oxygen is greater than
50% gas.Be conducive to further increase the efficiency of melting process using above-mentioned oxygen-enriched air.
During above-mentioned fusing and partial reduction, also has a small amount of ferro element and vanadium and be reduced.Most iron
Quito metal mineral aggregate is carried out during electrothermal reduction during drastic reduction.Simultaneously during electrothermal reduction, need to restore
The vanadium-bearing hot metal and titanium slag obtained afterwards separates as far as possible.In order to improve the separative efficiency of the two, it is preferable that reduction melting processing
The step of further include: molten liquid is delivered to electrothermal reduction area 20, then uses the second side-blown spray gun 22 and/or top-blown spray gun 23 will
The ullage in reducing agent penetrating electrothermal reduction area 20.
It is sprayed reductant into using the second side-blown spray gun 22 and/or top-blown spray gun 23 and molten liquid and reducing agent can be improved
Contact area, so that the two is sufficiently reacted, and then the reduction process of reinforced metal vanadium.Liquid by reducing agent in electrothermal reduction area 20
It is sprayed into above face, is conducive to that the addition of raw material is inhibited to cause to stir to the liquid level in electrothermal reduction area 20, to reduce it to dilution
The influence of the separative efficiency of vanadium-bearing hot metal and titanium slag in the process.
Preferably, each second side-blown spray gun 22 is separately positioned on the opposite side wall of reducing zone, realizes two sides to blowing
Purpose, this is conducive to the efficiency for further increasing reduction.Second side-blown spray gun 22 is preferably the compound submergence combustion of multichannel multi fuel
Burn spray gun.
In order to improve the rate of recovery of vanadium, it is preferable that the temperature of reduction melting processing is 1450~1650 DEG C；It is preferred that
Ground, the temperature of reduction melting processing are 1500~1600 DEG C.
In a kind of preferred embodiment, before carrying out fusing and partial reduction process, method of smelting further include: to iron
Quito metal mineral aggregate, fuel, flux and reducing agent are pre-processed respectively so that iron-based polymetallic ore material, fuel, flux and also
The granularity of former agent≤50mm, water content≤15wt%.The granularity and water content of iron-based polymetallic ore material include but is not limited to
Above range, and limited the melting efficiency for being conducive to improve iron-based more raw metals within the above range.
Preferably, bath smelting system further includes being connected respectively with the first feed opening 101 and/or the second feed opening 102
Cylinder mixing device, carry out fusing and during partial reduction before, method of smelting further includes using cylinder mixing device
Carry out mixing.
A certain amount of flue gas can be generated in above-mentioned fusion process, include higher heat in these usual flue gases.In order to drop
The loss of low energy, in a kind of preferred embodiment, smelting system further includes waste-heat recovery device, and method of smelting further includes remaining
The step of the step of recuperation of heat, waste heat recycles includes: to recycle fusing and partial reduction process and reduction using waste-heat recovery device
The heat in flue gas generated in fusion process.Preferably, above-mentioned waste-heat recovery device is waste heat boiler.It is highly preferred that more than
After recuperation of heat processing, the temperature of flue gas is down to 100~200 DEG C
A certain amount of dust would generally be carried secretly in the flue gas that above-mentioned fusion process generates, in order to improve the environmental protection of entire technique
Property, in a kind of preferred embodiment, smelting system further includes dust arrester installation, method of smelting further include: flue gas is carried out waste heat
After recovery processing, processing of gathering dust is carried out using dust arrester installation.
In a preferred embodiment, the difference in height of the bottom wall of melting zone 10 and the bottom wall in electrothermal reduction area 20 is 0
~500mm.Preferably, the height of the bottom wall of melting zone 10 is higher than the bottom wall in electrothermal reduction area 20.Due to the bottom wall of melting zone 10
Higher than the bottom wall in electrothermal reduction area 20, and the bottom of melting zone 10 is connected to electrothermal reduction area 20, this can make iron-based more metals
The molten liquid of mineral aggregate is separated with the raw material not melted completely, keeps the reduction object of reducing agent more targeted, to be conducive to
Improve the rate of recovery of electrothermal reduction ferrum in process and vanadium.In order to further increase the rate of recovery of vanadium, more preferably
Ground, the difference in height of the bottom wall of the bottom wall and electrothermal reduction area 20 of melting zone 10 are 150~500mm.
In order to preferably improve the flow rate of molten liquid, in a kind of preferred embodiment, the bottom wall of melting zone 10 with
The gradient of carrier between the bottom wall in electrothermal reduction area 20 is 0~90 °, preferably 30~60 °.
In above-mentioned fusion process, the oxide of Fe and V in iron-based polymetallic ore material, which are reduced, to be formed metal phase and contains vanadium
Molten iron, while TiO2、SiO2Slag making enters to form slag phase in conjunction with CaO.In a kind of preferred embodiment, slag type is in titanium slag
TiO2-SiO2The weight percentage of the titanium slag of-CaO is 75~90wt%.The adjustable slag of lime stone is added according to raw material condition
Type.
In a kind of preferred embodiment, to account for the weight of iron-based polymetallic ore material, the dosage of flux is 0
~20%.Flux dosage is limited to the content for being conducive to control titanium elements in titanium slag within the above range, in order to subsequent to it
Further applied.
The another aspect of the application additionally provides the bath smelting device that a kind of short route handles iron-based polymetallic ore material, such as
Shown in Fig. 2 to 4, the partition wall 30 for being internally provided with molten bath He being arranged in molten bath of bath smelting device, partition wall 30 divides molten bath
For melting zone 10 and electrothermal reduction area 20, and the bottom of melting zone 10 is connected with electrothermal reduction area 20, and bath smelting device is set
It is equipped with the first feed opening 101 being connected to melting zone 10 and the second feed opening 102 and the row being connected with electrothermal reduction area 20
Cinder notch 201 and metal discharge mouth 202, and the top of bath smelting device, the second feed opening 102 is arranged in the first feed opening 101
It is arranged on the side wall of bath smelting device；First feed opening 101, the second feed opening 102 and slag-drip opening 201, the first feed opening
101 are arranged in the top of bath smelting device, and the second feed opening 102 is arranged on the side wall of bath smelting device；Mixing outlet
It is connected with the first feed opening 101 and/or the second feed opening 102.
Molten bath is divided into melting zone 10 and electrothermal reduction area 20 by setting partition wall 30, so that fusing and partial reduction
Process and electrothermal reduction process can be completed in a smelting apparatus.During above-mentioned fusing and partial reduction, raw material is through
Melting zone 10 is added in one feed opening 101 and/or the second feed opening 102, provides heat by fuel and Air combustion with oxygen enrichment, makes iron
Melting and partial reduction, the addition of flux, which occur, for Quito metal mineral aggregate can make the impurity in iron-based polymetallic ore material with titanium slag
Form is separated with ferro element, while reducing fusing point, obtains molten liquid；After molten liquid is delivered to electrothermal reduction area 20, reducing agent
Be reduced with the ferro element of molten liquid and vanadium etc., while under dilution effect, liquid product in reduzate system and
Solid product is separated, and the molten iron and titanium slag containing vanadium is obtained, correspondingly through slag-drip opening 201 and metal discharge mouth 202
Discharge.
Melting is carried out to iron-based polymetallic ore material using above-mentioned bath smelting device, fusing and partial reduction process can be made
It is carried out in the same bath smelting device with electrothermal reduction process.Land occupation face needed for this aspect makes above-mentioned fusion process
Product is small, and the configuration height for reducing bath smelting device is poor, while can also reduce the capital investment to bath smelting device；Separately
On the one hand the operating procedure that melt discharge can also be saved and be added, improves production operation efficiency, reduces operator and corresponding
Work tool consumption.In addition, fusing and partial reduction process and electrothermal reduction process are completed in the same bath smelting device,
The heat that molten liquid can also be used in electrothermal reduction area 20 maintains higher temperature, and electric energy disappears when reducing individually reduction dilution
Consumption；Melting and reduction dilution operation are taken into account in molten bath, and storage melt amount is relatively large in furnace, can increase the storage slag time, be conducive to
The separation of titanium slag and vanadium-bearing hot metal improves the rate of recovery of vanadium；The flue gas that two subregions generate can be reduced and be built with mixed processing
If the investment of two sets of smoke processing systems.
In a kind of preferred embodiment, as shown in Fig. 2, melting zone 10 includes at least one first side-blown spray gun 11, the
The nozzle of one side-blown spray gun 11 is immersed in below the solid-phase material of melting zone 10 through the second feed opening 102, to spray to melting zone 10
Enter fuel and oxygen-enriched air.Fuel and oxygen-enriched air are sprayed into melting zone 10 using the first side-blown spray gun 11 can be to therein molten
Melt liquid and forms strong agitation, thus be conducive to improve mass-and heat-transfer efficiency, meanwhile, this is also beneficial to improve subsequent vanadium etc.
The rate of recovery.
In a kind of preferred embodiment, as shown in Fig. 2, electrothermal reduction area 20 includes at least one electrode 21, at least one
A second side-blown spray gun 22 and at least one top-blown spray gun 23.The end of each electrode 21 is located at the solid-phase material in electrothermal reduction area 20
Lower section is used for electrothermal reduction process heat supply；The nozzle of second side-blown spray gun 22 and the nozzle of top-blown spray gun 23 are respectively positioned on electric heating
The ullage of reducing zone 20, for spraying reductant into electrothermal reduction area 20.It is sprayed using the second side-blown spray gun 22 and/or top blast
Rifle 23 sprays reductant into the contact area that molten liquid and reducing agent can be improved, so that the two is sufficiently reacted.It simultaneously will reduction
Ullage of the agent in electrothermal reduction area 20 sprays into, and is conducive to that the addition of raw material is inhibited to cause to stir to the liquid level in electrothermal reduction area 20
It is dynamic, to reduce its influence to the separative efficiency of vanadium-bearing hot metal during dilution and titanium slag.
In a preferred embodiment, the difference in height of the bottom wall of melting zone 10 and the bottom wall in electrothermal reduction area 20 is 0
~500mm.Preferably, the height of the bottom wall of melting zone 10 is higher than the bottom wall in electrothermal reduction area 20.Due to the bottom wall of melting zone 10
Higher than the bottom wall in electrothermal reduction area 20, and the bottom of melting zone 10 is connected to electrothermal reduction area 20, this can make iron-based more metals
The molten liquid of mineral aggregate is separated with the raw material not melted completely, keeps the reduction object of reducing agent more targeted, to be conducive to
Improve the rate of recovery of electrothermal reduction ferrum in process and vanadium.In order to further increase the rate of recovery of vanadium, more preferably
Ground, the difference in height of the bottom wall of the bottom wall and electrothermal reduction area 20 of melting zone 10 are 150~500mm.
In order to preferably improve the flow rate of molten liquid, in a kind of preferred embodiment, as shown in Fig. 2, melting zone
The gradient of carrier between 10 bottom wall and the bottom wall in electrothermal reduction area 20 is 0~90 °.
A certain amount of flue gas can be generated in above-mentioned fusion process, for the ease of the discharge of flue gas, in a kind of preferred implementation
In example, as shown in Fig. 2, bath smelting device is additionally provided with flue 24, flue 24 is arranged in corresponding with electrothermal reduction area 20
At the top of molten bath.In order to accelerate the rate of discharge of flue gas, it is highly preferred that above-mentioned flue 24 is arranged corresponding with electrothermal reduction area 20
And close to melting zone 10 molten bath at the top of.
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.
The group of iron-based polymetallic ore material becomes 45~62wt% of Fe, TiO in embodiment 1 to 9 and comparative example 127~
20wt%, V2O50.1~1.2wt%, remaining is impurity, and process flow is as shown in Figure 1.
Embodiment 1
As shown in Figures 2 to 4, the bath of bath smelting device is provided with partition wall 30, and molten bath is divided into melting zone 10
With electrothermal reduction area 20, and the bottom of melting zone 10 is connected with electrothermal reduction area 20.Enter furnace material to add from the second feed opening 102
Enter melting zone, melting zone 10 includes first side-blown spray gun 11, and the nozzle of the first side-blown spray gun 11 is immersed in melting zone 10
Below solid-phase material, to spray into fuel and oxygen-enriched air to melting zone 10.
Electrothermal reduction area 20 sets 3 electrodes 21 (self-baking electrode), using Alternating Current Power Supply.If 22 He of the second side-blown spray gun
One top-blown spray gun 23.The end of each electrode 21 is located at below the solid-phase material in electrothermal reduction area 20, is used for electrothermal reduction mistake
Journey heat supply；The nozzle of second side-blown spray gun 22 is located at the ullage in electrothermal reduction area 20, for spraying reductant into electric heating also
Former area 20.The difference in height of the bottom wall of the bottom wall and electrothermal reduction area 20 of melting zone 10 is 200mm, the bottom wall and electric heating of melting zone 10
The gradient of carrier between the bottom wall of reducing zone 20 is 45 °.Bath smelting device is additionally provided with flue 24, and the setting of flue 24 exists
At the top of molten bath corresponding with electrothermal reduction area 20.The setting of flue 24 is in corresponding with electrothermal reduction area 20 and close melting zone
At the top of 10 molten bath.Reduction melting temperature is 1600 DEG C or so in smelting process.
Through above-mentioned fusion process, the rate of recovery of vanadium is 96wt%, and the rate of recovery of ferro element is 89wt%.
Embodiment 2
With the difference of embodiment 1 are as follows:
Melting zone does not use immersion side-blown spray gun to spray into fuel.
Through above-mentioned fusion process, the rate of recovery of vanadium is 91wt%, and the rate of recovery of ferro element is 86wt%, comprehensive energy consumption
Than example 1 high 8%.
Embodiment 3
With the difference of embodiment 1 are as follows: the temperature of reduction melting processing is 1550 DEG C.
Through above-mentioned fusion process, the rate of recovery of vanadium is 87wt%, and the rate of recovery of ferro element is 85wt%, comprehensive energy consumption
Than example 1 high 6%.
Embodiment 4
With the difference of embodiment 1 are as follows: the difference in height of the bottom wall of the bottom wall and electrothermal reduction area 20 of melting zone 10 is 100mm.
Through above-mentioned fusion process, the rate of recovery of vanadium is that the rate of recovery of vanadium is 88wt%, the rate of recovery of ferro element
For 85wt%.
Embodiment 5
With the difference of embodiment 1 are as follows: enter furnace material and be added from the first feed opening 101, do not passed through from the second feed opening 102 lazy
Property gas spray into.
Through above-mentioned fusion process, the rate of recovery of vanadium is 93wt%, and the rate of recovery of ferro element is 87wt%, comprehensive energy consumption
Than example 1 high 5%.
Embodiment 6
With the difference of embodiment 1 are as follows: enter furnace material a part and be added from the first feed opening 101, another part is simultaneously from the
Two feed openings 102 spray into.
Through above-mentioned fusion process, the rate of recovery of vanadium is that the rate of recovery of vanadium is 97wt%, the rate of recovery of ferro element
For 87wt%.
Embodiment 7
With the difference of embodiment 1 are as follows: the quantity of the electrode 21 in electrothermal reduction area 20 is 2.
Through above-mentioned fusion process, the rate of recovery of vanadium is that the rate of recovery of vanadium is 94wt%, the rate of recovery of ferro element
For 85wt%.
Embodiment 8
With the difference of embodiment 1 are as follows: the material of the electrode 21 in electrothermal reduction area 20 is graphite electrode.
Through above-mentioned fusion process, the rate of recovery of vanadium is that the rate of recovery of vanadium is 95wt%, the rate of recovery of ferro element
For 88wt%.
Embodiment 9
With the difference of embodiment 1 are as follows: reducing agent is added using top-blown spray gun 23 in electrothermal reduction area 20.
Through above-mentioned fusion process, the rate of recovery of vanadium is 94wt%, and the rate of recovery of ferro element is 87wt%, comprehensive energy consumption
Than example 1 high 5%.
Comparative example 1
With the difference of embodiment 1 are as follows: be not provided with partition wall between melting zone 10 and electrothermal reduction area 20.
Through above-mentioned fusion process, the rate of recovery of vanadium is 82wt%, and the rate of recovery of ferro element is 85wt%, comprehensive energy consumption
Than example 1 high 5%.
It can be seen from the above description that the above embodiments of the present invention realized the following chievements:
In above-mentioned method of smelting, above-mentioned fusion process, fusing and partial reduction process and electrothermal reduction process are same
It is carried out in bath smelting device.Occupied area needed for this aspect makes above-mentioned fusion process is small, reduces bath smelting dress
The configuration height set is poor, while can also reduce the capital investment to bath smelting device；On the other hand melt can also be saved
Discharge and the operating procedure being added, improve production operation efficiency, reduce operator and the consumption of corresponding Work tool.In addition, molten
Change and partial reduction process and electrothermal reduction process are completed in the same bath smelting device, and electrothermal reduction area can also be used molten
The heat for melting liquid maintains higher temperature, the consumption of electric energy when reducing individually reduction dilution；Melting is taken into account in molten bath and reduction is poor
It is turned into industry, storage melt amount is relatively large in furnace, can increase the storage slag time, be conducive to the separation of titanium slag and vanadium-bearing hot metal；Together
When two processes generate flue gas can with mixed processing, reduce construction two sets of smoke processing systems investment.
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, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (16)
1. a kind of short route handles the method for smelting of iron-based polymetallic ore material, the iron-based polymetallic ore material includes ferro element, titanium
Element and vanadium, which is characterized in that the smelting system used in the method for smelting includes bath smelting device, the molten bath
It is provided with partition wall (30) in the molten bath of smelting apparatus, the molten bath is divided into melting zone (10) and electrothermal reduction area (20), and
The bottom of the melting zone (10) is connected to the electrothermal reduction area (20), and the molten bath is additionally provided with and the melting zone (10)
The first feed opening (101) and the second feed opening (102) of connection and the slag-drip opening being connected with the electrothermal reduction area (20)
(201) and metal discharge mouth (202), and the top of the bath smelting device is arranged in first feed opening (101), described
Second feed opening (102) is arranged on the side wall of the bath smelting device, and the method for smelting includes:
The iron-based polymetallic ore material, fuel, flux and oxygen-enriched air are delivered in the melting zone (10) carry out fusing and
Partial reduction obtains molten liquid；
The molten liquid and reducing agent are delivered to the electrothermal reduction area (20) and carry out reduction melting processing, is obtained containing vanadium unit
The molten iron and titanium slag of element.
2. method of smelting according to claim 1, which is characterized in that the step of fusing and partial reduction include: by
The iron-based polymetallic ore material and the flux are through the first feed opening (101) of the bath smelting device and/or described second
Feed opening (102) is added in the melting zone (10), and by the nozzle of at least one the first side-blown spray gun (11) through described second
Feed opening (102) is immersed in below the solid-phase material of the melting zone (10), then will using first side-blown spray gun (11)
The fuel and the oxygen-enriched air spray into the melting zone (10), to carry out the process of the fusing and partial reduction, obtain
The molten liquid；
Preferably, the fuel is selected from one of group of natural gas, coal gas and fine coal composition or a variety of；
Preferably, the oxygen-enriched air is that the volumetric concentration of oxygen is greater than 50% gas.
3. method of smelting according to claim 1 or 2, which is characterized in that the step of reduction melting is handled further include:
The molten liquid is delivered to the electrothermal reduction area (20), then uses the second side-blown spray gun (22) and/or top-blown spray gun (23)
The reducing agent is sprayed into the ullage of the electrothermal reduction area (20).
4. method of smelting according to any one of claim 1 to 3, which is characterized in that the temperature of the reduction melting processing
Degree is 1450~1650 DEG C；Preferably, the temperature of the reduction melting processing is 1500~1600 DEG C.
5. method of smelting according to claim 2 or 3, which is characterized in that carrying out the fusing and partial reduction process
Before, the method for smelting further include: to the iron-based polymetallic ore material, the fuel, the flux and the reducing agent point
Do not pre-processed so that the iron-based polymetallic ore material, the fuel, the flux and the reducing agent granularity≤
50mm, water content≤15wt%.
6. method of smelting according to claim 2, which is characterized in that the bath smelting system further includes respectively with first
The cylinder mixing device that feed opening (101) and/or second feed opening (102) are connected is carrying out the fusing and part
Before in reduction process, the method for smelting further includes carrying out mixing using the cylinder mixing device.
7. method of smelting according to claim 1, which is characterized in that the smelting system further includes waste-heat recovery device,
The method of smelting further includes the steps that the step of waste heat recycles, and the waste heat recycles includes: using the waste-heat recovery device
Recycle the heat in the flue gas generated during the fusing and partial reduction process and the reduction melting；
Preferably, after the waste heat recovery processing, the temperature of the flue gas is down to 100~200 DEG C；
Preferably, the waste-heat recovery device is waste heat boiler.
8. method of smelting according to claim 7, which is characterized in that the smelting system further includes dust arrester installation, described
Method of smelting further include: after the flue gas is carried out the waste heat recovery processing, processing of gathering dust is carried out using the dust arrester installation.
9. method of smelting according to any one of claim 1 to 3, which is characterized in that the bottom wall of the melting zone (10)
Difference in height with the bottom wall of the electrothermal reduction area (20) is 0~500mm, it is preferable that the height of the bottom wall of the melting zone (210)
Degree is higher than the bottom wall of the electrothermal reduction area (220), more preferably 150~500mm；
Preferably, the gradient of the carrier between the bottom wall of the melting zone (10) and the bottom wall in the electrothermal reduction area (20) is
0~90 °, more preferably 30~60 °.
10. method of smelting according to any one of claim 1 to 9, which is characterized in that the iron-based polymetallic ore material choosing
From vanadium titano-magnetite and/or sea sand mine.
11. the bath smelting device that a kind of short route handles iron-based polymetallic ore material, which is characterized in that the bath smelting device
The partition wall (30) for being internally provided with molten bath He being arranged in the molten bath, the molten bath is divided into melting zone by the partition wall (30)
(10) it is connected to electrothermal reduction area (20), the bottom of the melting zone (10) with the electrothermal reduction area (20), the molten bath is also
Be provided with the first feed opening (101) being connected to the melting zone (10) and the second feed opening (102) and with the electric heating also
The slag-drip opening (201) and metal discharge mouth (202) that former area (20) is connected, and first feed opening (101) is arranged described
The top of bath smelting device, second feed opening (102) are arranged on the side wall of the bath smelting device.
12. bath smelting device according to claim 11, which is characterized in that the melting zone (10) includes at least one
First side-blown spray gun (11), the nozzle of first side-blown spray gun (11) are immersed in described molten through second feed opening (102)
The liquid level in tabetisol (10) is hereinafter, to spray into fuel and oxygen-enriched air to the melting zone (10).
13. bath smelting device according to claim 11 or 12, which is characterized in that electrothermal reduction area (20) packet
It includes:
At least one electrode (21), the end of the electrode (21) are located at below the solid-phase material of the electrothermal reduction area (20),
For to the electrothermal reduction process heat supply；
At least one second side-blown spray gun (22) and at least one top-blown spray gun (23), the nozzle of second side-blown spray gun (22)
The ullage of the electrothermal reduction area (20) is respectively positioned on the nozzle of the top-blown spray gun (23), for spraying reductant into
State electrothermal reduction area (20)；Preferably, each second side-blown spray gun (22) is separately positioned on the opposite side of the reducing zone
On wall.
14. bath smelting device described in any one of 1 to 13 according to claim 1, which is characterized in that the melting zone (10)
Bottom wall and the electrothermal reduction area (20) bottom wall difference in height be 0~500mm, it is preferable that the bottom of the melting zone (10)
The height of wall is higher than the bottom wall of the electrothermal reduction area (20), more preferably 150~500mm.
15. bath smelting device according to claim 14, which is characterized in that the bottom wall of the melting zone (10) with it is described
The gradient of carrier between the bottom wall in electrothermal reduction area (20) is 0~90 °.
16. bath smelting device according to claim 11 or 12, which is characterized in that the bath smelting device is also set up
Have flue (24), flue (24) setting is at the top of the corresponding molten bath with the electrothermal reduction area (20).
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| PCT/CN2020/083785 WO2020211689A1 (en) | 2019-04-17 | 2020-04-08 | Smelting method and smelting device for processing iron-based polymetallic mineral materials using short process |
| ZA2020/05923A ZA202005923B (en) | 2019-04-17 | 2020-09-25 | Smelting method and smelting device for treating iron-based polymetallic ore in short process |
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| WO2020211689A1 (en) * | 2019-04-17 | 2020-10-22 | 中国恩菲工程技术有限公司 | Smelting method and smelting device for processing iron-based polymetallic mineral materials using short process |
| CN111101001B (en) * | 2020-01-16 | 2023-06-16 | 中国恩菲工程技术有限公司 | One-step nickel smelting system and one-step nickel smelting method |
| CN111101001A (en) * | 2020-01-16 | 2020-05-05 | 中国恩菲工程技术有限公司 | One-step nickel smelting system and one-step nickel smelting method |
| CN111235389A (en) * | 2020-03-30 | 2020-06-05 | 中国恩菲工程技术有限公司 | Smelting method and device of vanadium titano-magnetite |
| CN111235389B (en) * | 2020-03-30 | 2024-01-23 | 中国恩菲工程技术有限公司 | Smelting method and device of vanadium titano-magnetite |
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| CN111961782A (en) * | 2020-07-30 | 2020-11-20 | 中国恩菲工程技术有限公司 | Method and device for reducing and smelting vanadium titano-magnetite |
| CN111961782B (en) * | 2020-07-30 | 2023-10-31 | 中国恩菲工程技术有限公司 | Vanadium titano-magnetite reduction smelting method and device |
| CN112195299A (en) * | 2020-08-18 | 2021-01-08 | 北京中冶设备研究设计总院有限公司 | Device and method for smelting ferro-silico-aluminum based on ferronickel slag of electric arc furnace |
| CN112195299B (en) * | 2020-08-18 | 2022-06-03 | 北京中冶设备研究设计总院有限公司 | Device and method for smelting ferro-silico-aluminum based on ferronickel slag of electric arc furnace |
| WO2022073324A1 (en) * | 2020-10-10 | 2022-04-14 | 中国恩菲工程技术有限公司 | Smelting method and device for iron-based ores |
| CN111926133A (en) * | 2020-10-10 | 2020-11-13 | 中国恩菲工程技术有限公司 | Method and apparatus for smelting iron-based mineral |
| CN115058602A (en) * | 2022-07-07 | 2022-09-16 | 中国恩菲工程技术有限公司 | Direct continuous lead smelting method and device |
| CN115058602B (en) * | 2022-07-07 | 2024-04-26 | 中国恩菲工程技术有限公司 | Direct continuous lead smelting method and device |
| CN116147336A (en) * | 2023-04-21 | 2023-05-23 | 中国恩菲工程技术有限公司 | Sulfur-containing multi-metal solid waste smelting furnace and smelting treatment method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109880955B (en) | 2021-01-08 |
| WO2020211689A1 (en) | 2020-10-22 |
| ZA202005923B (en) | 2022-03-30 |
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