CN110157847A - The smelting system of iron-based polymetallic ore material - Google Patents
The smelting system of iron-based polymetallic ore material Download PDFInfo
- Publication number
- CN110157847A CN110157847A CN201910517182.2A CN201910517182A CN110157847A CN 110157847 A CN110157847 A CN 110157847A CN 201910517182 A CN201910517182 A CN 201910517182A CN 110157847 A CN110157847 A CN 110157847A
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- Prior art keywords
- smelting
- bath
- feed opening
- electrothermal reduction
- smelting system
- Prior art date
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- Granted
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- 238000003723 Smelting Methods 0.000 title claims abstract description 101
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 28
- 239000000463 material Substances 0.000 title claims abstract description 26
- 230000009467 reduction Effects 0.000 claims abstract description 53
- 238000002156 mixing Methods 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 238000011084 recovery Methods 0.000 claims abstract description 25
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 25
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052751 metal Inorganic materials 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 13
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000004615 ingredient Substances 0.000 claims abstract description 7
- 239000010936 titanium Substances 0.000 claims abstract description 7
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 7
- 239000007921 spray Substances 0.000 claims description 39
- 239000003546 flue gas Substances 0.000 claims description 12
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 11
- 238000001035 drying Methods 0.000 claims description 11
- 239000002994 raw material Substances 0.000 claims description 11
- 239000000428 dust Substances 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 239000002918 waste heat Substances 0.000 claims description 7
- 239000000446 fuel Substances 0.000 claims description 6
- 238000011946 reduction process Methods 0.000 claims description 5
- 239000000779 smoke Substances 0.000 claims description 5
- 239000007791 liquid phase Substances 0.000 claims description 4
- 239000003550 marker Substances 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 206010022000 influenza Diseases 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 14
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 17
- 238000002844 melting Methods 0.000 description 11
- 230000008018 melting Effects 0.000 description 11
- 230000008569 process Effects 0.000 description 11
- 239000002893 slag Substances 0.000 description 9
- 238000007499 fusion processing Methods 0.000 description 8
- 239000003638 chemical reducing agent Substances 0.000 description 6
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 238000001354 calcination Methods 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000003113 dilution method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- GFNGCDBZVSLSFT-UHFFFAOYSA-N titanium vanadium Chemical compound [Ti].[V] GFNGCDBZVSLSFT-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/006—Starting from ores containing non ferrous metallic oxides
-
- 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
-
- 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
- C22B34/00—Obtaining refractory metals
- C22B34/20—Obtaining niobium, tantalum or vanadium
- C22B34/22—Obtaining vanadium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
- C22B4/06—Alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
- C22B4/08—Apparatus
Abstract
The present invention provides a kind of smelting systems of iron-based polymetallic ore material.Iron-based polymetallic ore material includes ferro element, titanium elements and vanadium, and smelting system includes: mixing device, bath smelting device and electrothermal reduction device, and mixing device is provided with ingredient inlets and mixing outlet；Bath smelting device is provided with the first feed opening and the second feed opening and molten liquid outlet, and first feed opening the top of bath smelting device is set, second feed opening is arranged on the side wall of bath smelting device, and mixing outlet is connected to setting with the first feed opening and/or the second feed opening；And electrothermal reduction device is provided with slag-drip opening and metal discharge mouth and molten liquid entrance, molten liquid entrance is connected with molten liquid outlet.The rate of recovery of vanadium can be effectively improved using the smelting system that mixing device, efficient bath smelting device and electrothermal reduction device combine, reduces operation labor intensity, while also there is reduction comprehensive energy consumption, promote the advantages such as environment discharge index.
Description
Technical field
The present invention relates to metal smelt fields, in particular to a kind of smelting system of iron-based polymetallic ore material.
Background technique
Vanadium titano-magnetite is a kind of ore of more difficult smelting.The v-bearing titanomagnetite smelting device of mature application is main at present
There are blast furnace process device and rotary kiln-electric furnace smelting device.
The process smelted using blast furnace process device is mainly first added vanadium titano-magnetite after oversintering or pelletizing
Enter in blast furnace, recycles iron and vanadium.Existing literature CN102041331A discloses a kind of technique of smelting vanadium-titanium magnetite by blast furnace, should
Use blast furnace as smelting device in smelting process.But the major advantage of the smelting device is high production efficiency, production scale
Greatly, the disadvantage is that comprehensive energy consumption is high, long flow path, slag iron difficulty point, dry slag and desulphurizing ability it is low.Furthermore blast furnace process is to TiO in slag2Contain
Measure it is more demanding, generally will be lower than 25%.
The characteristics of rotary kiln-furnace device is the iron ore concentrate that obtained through ore dressing can be directly used in smelting, and process is short, iron,
The rate of recovery of vanadium is above Blast Furnace, but also fails to recycle titanium slag at present.Existing literature CN107815537A is disclosed
For one kind with vanadium titano-magnetite processing unit, which includes rotary kiln, coal powder injection device, electric furnace and converter.Vanadium titano-magnetite is first
Prereduction is first carried out in rotary kiln, obtains calcining；Then calcining, which enters, carries out reduction melting in electric furnace, obtain vanadium-bearing hot metal；
Last vanadium-bearing hot metal carries out blowing processing in converter, obtains half steel and titanium slag.Compared to using Blast Furnace, rotary kiln-electricity
The comprehensive energy consumption of furnace smelting device is low, and without coking, sintering, environmental emission index is more excellent.Rotary kiln-electric furnace process is the disadvantage is that comprehensive
Conjunction energy consumption is still higher and strong to the dependence of electric power energy, is difficult to push away in the area that electric power resource is deficient or power cost is high
Extensively.
Presence in view of the above problems, it is necessary to which a kind of melting system of low energy consumption for iron-based polymetallic ore material is provided
System.
Summary of the invention
The main purpose of the present invention is to provide a kind of smelting systems of iron-based polymetallic ore material, existing for iron to solve
Energy consumption height existing for the melting technique of Quito metal mineral aggregate and the not strong problem of adaptability to raw material.
To achieve the goals above, of the invention to provide a kind of smelting system for handling iron-based polymetallic ore material, it is iron-based
Polymetallic ore material includes ferro element, titanium elements and vanadium, and smelting system includes: mixing device, bath smelting device and electric heating
Reduction apparatus, mixing device are provided with ingredient inlets and mixing outlet；Bath smelting device is provided with the first feed opening and second
Feed opening and molten liquid outlet, and the top of bath smelting device is arranged in the first feed opening, the second feed opening is arranged in molten bath
On the side wall of smelting apparatus, mixing outlet is connected to setting with the first feed opening and/or the second feed opening；And electrothermal reduction device is set
It is equipped with slag-drip opening and metal discharge mouth and molten liquid entrance, molten liquid entrance is connected with molten liquid outlet.
Further, bath smelting device is side-blown immersion bath smelting device, and bath smelting device includes at least one
A first side-blown spray gun, the nozzle of the first side-blown spray gun are immersed in the liquid level in the molten bath in bath smelting device through the second feed opening
Hereinafter, to spray into fuel and oxygen-enriched air to molten bath.
Further, electrothermal reduction device includes: at least one electrode and at least one second side-blown spray gun and at least one
A top-blown spray gun, the end of electrode are located at below the liquid phase material in electrothermal reduction device, are used for electrothermal reduction process heat supply；
The nozzle of second side-blown spray gun and the nozzle of top-blown spray gun are respectively positioned on the ullage in electrothermal reduction device, are used for reducing agent
Spray into electrothermal reduction device.
Further, bath smelting device is additionally provided with the first flue, the molten bath phase of the first flue and bath smelting device
Connection.
Further, electrothermal reduction device is additionally provided with the second flue, the reduction chamber of the second flue and electrothermal reduction device
It is connected.
Further, smelting system further includes dust arrester installation, and dust arrester installation is provided with smoke inlet, smoke inlet respectively with
The outlet end of first flue and the second flue is connected to by flue gas delivery pipe road.
Further, smelting system further includes waste-heat recovery device, and waste-heat recovery device is arranged on flue gas delivery pipe road.
Further, smelting system further includes crushing drying device, for carrying out broken and drying and processing to reaction raw materials,
Crushing drying device is provided with discharge gate, and discharge gate is connected with ingredient inlets.
Further, the marker size of discharge gate is less than 50mm.
Apply the technical scheme of the present invention, the smelting system of the above-mentioned iron-based polymetallic ore material of processing, for existing blast furnace or
Rotary kiln-electro-smelting device there are energy consumptions it is high, adaptability to raw material is not strong the problems such as, the application is using mixing device, oxygen-enriched molten
Two combination oven technologies of pond smelting apparatus and electrothermal reduction device, take the raw materials such as iron-based Complex concentrate after mixing device mixing
The abbreviated system for directly entering bath smelting device and electrothermal reduction device, to eliminate the pre- place such as rotary kiln melting or sintering
Science and engineering sequence.It can be effective using the smelting system that mixing device, efficient bath smelting device and electrothermal reduction device combine
Improve the rate of recovery of vanadium, reduce operation labor intensity, while also there is reduction comprehensive energy consumption, promote environment discharge index etc.
Advantage.
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 for the iron-based polymetallic ore material of processing that a kind of typical embodiment according to the present invention provides
The structural schematic diagram of system；
Fig. 2 shows a kind of smelting apparatus for the iron-based polymetallic ore material that typical embodiment provides according to the present invention
Structural schematic diagram；
Fig. 3 shows structural schematic diagram of the bath smelting device shown in Fig. 2 on the direction A-A；
Fig. 4 shows structural schematic diagram of the electrothermal reduction device shown in Fig. 2 on the direction C-C.
Wherein, the above drawings include the following reference numerals:
100, mixing device；
200, bath smelting device；210, the first side-blown spray gun；220, the first flue；201, the first feed opening；202,
Two feed openings；
300, electrothermal reduction device；310, electrode；320, the second side-blown spray gun；330, top-blown spray gun；340, the second flue；
301, slag-drip opening；302, metal discharge mouth；
400, dust arrester installation；500, waste-heat recovery device；600, crushing drying device.
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, energy consumption height existing for the existing melting technique for iron-based polymetallic ore material and
The not strong problem of adaptability to raw material.In order to solve the above-mentioned technical problem, this application provides a kind of iron-based polymetallic ore material of processing
Smelting system, iron-based polymetallic ore material include ferro element, titanium elements and vanadium, smelting system include: mixing device 100,
Bath smelting device 200 and electrothermal reduction device 300, mixing device 100 are provided with ingredient inlets and mixing outlet；Bath smelting
Device 200 is provided with the first feed opening 201 and the second feed opening 202 and molten liquid outlet, and the setting of the first feed opening 201 exists
The top of bath smelting device 200, the second feed opening 202 are arranged on the side wall of bath smelting device 200, mixing outlet and the
One feed opening 201 and/or the connection setting of the second feed opening 202；And electrothermal reduction device 300 is provided with slag-drip opening 301 and metal
Discharge outlet 302 and molten liquid entrance, molten liquid entrance are connected with molten liquid outlet.
In above-mentioned smelting system, reaction raw materials add after 100 mixing of mixing device through the first feed opening 201 and/or second
Material mouth 202, which enters, occurs melting and partial reduction process in bath smelting device 200, obtain molten liquid；Then above-mentioned molten liquid
Electric heating drastic reduction and slag dilution process occur in electrothermal reduction device 300, after the reaction was completed, metal is through metal discharge mouth
302 discharges, slag are discharged through slag-drip opening 301.
The smelting system of the above-mentioned iron-based polymetallic ore material of processing, is deposited for existing blast furnace or rotary kiln-electro-smelting device
The problems such as energy consumption is high, adaptability to raw material is not strong, the application is filled using mixing device, oxygen enriched molten bath smelting apparatus and electrothermal reduction
The two combination oven technologies set, take the raw materials such as iron-based Complex concentrate directly to enter bath smelting device after 100 mixing of mixing device
200 and electrothermal reduction device 300 abbreviated system, to eliminate the pretreatment process such as rotary kiln melting or sintering.Using
The smelting system that mixing device 100, efficient bath smelting device 200 and electrothermal reduction device 300 combine can be mentioned effectively
The rate of recovery of high vanadium reduces operation labor intensity, while also excellent with comprehensive energy consumption, promotion environment discharge index etc. is reduced
Gesture.
In a kind of preferred embodiment, bath smelting device 200 is side-blown immersion bath smelting device, bath smelting
Device 200 includes at least one first side-blown spray gun 210, and the nozzle of the first side-blown spray gun 210 is submerged through the second feed opening 202
The liquid level in the molten bath in bath smelting device 200 is hereinafter, to spray into fuel and oxygen-enriched air to molten bath.Using the first side-blown spray
Fuel and oxygen-enriched air are sprayed into bath smelting device 200 by rifle 210 to form strong agitation to molten liquid therein, 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 a kind of preferred embodiment, electrothermal reduction device 300 include: at least one electrode 310, at least one second
Side-blown spray gun 320 and at least one top-blown spray gun 330, the end of electrode 310 is located at the liquid phase material in electrothermal reduction device 300
Lower section is used for electrothermal reduction process heat supply；The nozzle of second side-blown spray gun 320 and the nozzle of top-blown spray gun 330 are respectively positioned on electricity
The ullage in device 300 is heat-treated, for spraying reductant into electrothermal reduction device 300.Preferably, electrode 310 is stone
Electrode ink.
It sprays reductant into and molten liquid and reducing agent can be improved using the second side-blown spray gun 320 and/or top-blown spray gun 330
Contact area so that the two is sufficiently reacted.The ullage by reducing agent in electrothermal reduction device 300 sprays into simultaneously, favorably
In inhibiting the addition of raw material to cause to stir to the liquid level of electrothermal reduction device 300, vanadium is contained in the process to slag dilution to reduce it
The influence of the separative efficiency of molten iron and titanium slag.
A certain amount of flue gas can be generated in above-mentioned fusion process, for the ease of the discharge of flue gas, it is preferable that bath smelting dress
It sets 200 and is additionally provided with the first flue 220, the first flue 220 is connected with the molten bath of bath smelting device 200；Preferably, electric
Thermal reduction device 300 is additionally provided with the second flue 340, and the second flue 340 is connected with the reduction chamber of electrothermal reduction device 300.
A certain amount of dust would generally be carried secretly in the flue gas that fusion process generates, in order to improve the feature of environmental protection of entire technique,
In a kind of preferred embodiment, smelting system further includes dust arrester installation 400, and dust arrester installation 400 is provided with smoke inlet, flue gas
Entrance is connected to the outlet end of the first flue 220 and the second flue 340 by flue gas delivery pipe road respectively.
A certain amount of flue gas can be generated in fusion process, include higher heat in these usual flue gases.In order to improve energy
Utilization rate is measured, in a kind of preferred embodiment, smelting system further includes waste-heat recovery device 500, and waste-heat recovery device 500 is set
It sets on flue gas delivery pipe road.Crushing drying device 600, for carrying out broken and drying and processing, crushing drying to reaction raw materials
Device 600 is provided with discharge gate, and discharge gate is connected with ingredient inlets；Preferably, the marker size of discharge gate is less than
50mm.Crushing drying device is set, limits the granularity of iron-based polymetallic ore material and water content within the above range, is conducive to mention
The melting efficiency of high-speed rail Quito raw metal.
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 527~20wt%, V2O5
0.1~1.2wt%, remaining is impurity, and process flow is as shown in Figure 1.
Embodiment 1
As shown in Figures 1 to 4, bath smelting device includes the bath smelting device 200 and electrothermal reduction device being connected
300, bath smelting device 200 is provided with the first feed opening 201 and the second feed opening 202, and the setting of the first feed opening 201 is molten
The top of pond smelting apparatus 200, the second feed opening 202 are arranged on the side wall of bath smelting device 200, electrothermal reduction device
300 are provided with slag-drip opening 301 and metal discharge mouth 302.The nozzle of first side-blown spray gun 210 is immersed in through the second feed opening 202
The liquid level in the molten bath in bath smelting device 200 is hereinafter, to spray into fuel and oxygen-enriched air to molten bath.
Electrothermal reduction device 300 sets 3 electrodes 310 (self-baking electrode), using Alternating Current Power Supply.If second side-blown spray gun
320 and a top-blown spray gun 330.The end of each electrode 310 is located at below the liquid phase material of electrothermal reduction device 300, for
Electrothermal reduction process heat supply；The nozzle of second side-blown spray gun 320 is located at the ullage of electrothermal reduction device 300, for that will go back
Former agent sprays into electrothermal reduction device 300.Reduction melting temperature is 1600 DEG C in smelting process.
Through above-mentioned fusion process, the rate of recovery of vanadium is 95wt%, and the rate of recovery of ferro element is 87wt%.
Embodiment 2
With the difference of embodiment 1 are as follows:
Immersion side-blown spray gun is not used to spray into fuel in bath smelting device 200.
Through above-mentioned fusion process, the rate of recovery of vanadium is 93wt%, and the rate of recovery of ferro element is 88wt%, comprehensive energy consumption
Than example 1 high 7%.
Embodiment 3
With the difference of embodiment 1 are as follows: the quantity of electrode 310 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 87wt%.
Embodiment 4
With the difference of embodiment 1 are as follows: the material of electrode 310 is graphite electrode.
Through above-mentioned fusion process, the rate of recovery of vanadium is that the rate of recovery of vanadium is 92wt%, the rate of recovery of ferro element
For 86wt%.
Embodiment 5
With the difference of embodiment 1 are as follows: reducing agent is added using top-blown spray gun 330.
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%.
It can be seen from the above description that the above embodiments of the present invention realized the following chievements:
Compared to existing smelting device, the application uses the melting system that combines with electrothermal reduction of efficient bath smelting
System can effectively improve the rate of recovery of vanadium, while also having reduction comprehensive energy consumption, promoting the advantages such as environment discharge index.
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 (9)
1. a kind of smelting system for handling iron-based polymetallic ore material, the iron-based polymetallic ore material include ferro element, titanium elements and
Vanadium, which is characterized in that the smelting system includes:
Mixing device (100), the mixing device (100) are provided with ingredient inlets and mixing outlet；
Bath smelting device (200), the bath smelting device (200) are provided with the first feed opening (201) and the second feed opening
(202) and molten liquid outlet, and first feed opening (201) setting is at the top of the bath smelting device (200), described
Second feed opening (202) is arranged on the side wall of the bath smelting device (200), the mixing outlet and the first feed opening
(201) and/or the second feed opening (202) connection is arranged；And
Electrothermal reduction device (300), the electrothermal reduction device (300) are provided with slag-drip opening (301) and metal discharge mouth (302)
And molten liquid entrance, the molten liquid entrance are connected with molten liquid outlet.
2. smelting system according to claim 1, which is characterized in that the bath smelting device (200) is side-blown submergence
Formula bath smelting device, the bath smelting device (200) include at least one first side-blown spray gun (210), first side
The nozzle for blowing and spraying rifle (210) is immersed in the liquid in the molten bath in the bath smelting device (200) through second feed opening (202)
Face is hereinafter, to spray into fuel and oxygen-enriched air to the molten bath.
3. smelting system according to claim 1 or 2, which is characterized in that the electrothermal reduction device (300) includes:
At least one electrode (310), the end of the electrode (310) are located at the liquid phase object in the electrothermal reduction device (300)
Material lower section, is used for the electrothermal reduction process heat supply；
At least one second side-blown spray gun (320) and at least one top-blown spray gun (330), second side-blown spray gun (320)
Nozzle and the nozzle of the top-blown spray gun (330) are respectively positioned on the ullage in the electrothermal reduction device (300), for that will go back
Former agent sprays into the electrothermal reduction device (300).
4. smelting system according to claim 1 or 2, which is characterized in that the bath smelting device (200) is additionally provided with
First flue (220), first flue (220) are connected with the molten bath of the bath smelting device (200).
5. smelting system according to claim 4, which is characterized in that the electrothermal reduction device (300) is additionally provided with
Two flues (340), second flue (340) are connected with the reduction chamber of the electrothermal reduction device (300).
6. smelting system according to claim 5, which is characterized in that the smelting system further includes dust arrester installation (400),
The dust arrester installation (400) is provided with smoke inlet, the smoke inlet respectively with first flue (220) and described second
The outlet end of flue (340) is connected to by flue gas delivery pipe road.
7. smelting system according to claim 6, which is characterized in that the smelting system further includes waste-heat recovery device
(500), the waste-heat recovery device (500) is arranged on the flue gas delivery pipe road.
8. smelting system according to claim 7, which is characterized in that the smelting system further includes crushing drying device
(600), discharge gate, and institute are provided with for carrying out broken and drying and processing, the crushing drying device (600) to reaction raw materials
Discharge gate is stated to be connected with the ingredient inlets.
9. smelting system according to claim 8, which is characterized in that the marker size of the discharge gate is less than 50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910517182.2A CN110157847B (en) | 2019-06-14 | Smelting system of iron-based polymetallic mineral aggregate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910517182.2A CN110157847B (en) | 2019-06-14 | Smelting system of iron-based polymetallic mineral aggregate |
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| CN106996695A (en) * | 2016-01-22 | 2017-08-01 | 中国恩菲工程技术有限公司 | A kind of metallurgical furnace |
| CN107858502A (en) * | 2017-12-07 | 2018-03-30 | 中国恩菲工程技术有限公司 | Vanadium titano-magnetite processing method |
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