CN206580851U - Fine ore total oxygen fused reduction iron-smelting device - Google Patents
Fine ore total oxygen fused reduction iron-smelting device Download PDFInfo
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- CN206580851U CN206580851U CN201720277969.2U CN201720277969U CN206580851U CN 206580851 U CN206580851 U CN 206580851U CN 201720277969 U CN201720277969 U CN 201720277969U CN 206580851 U CN206580851 U CN 206580851U
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 239000001301 oxygen Substances 0.000 title claims abstract description 37
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 37
- 238000003723 Smelting Methods 0.000 title claims abstract description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 61
- 229910052742 iron Inorganic materials 0.000 claims abstract description 28
- 238000002844 melting Methods 0.000 claims abstract description 16
- 230000008018 melting Effects 0.000 claims abstract description 16
- 239000002817 coal dust Substances 0.000 claims abstract description 11
- 239000003818 cinder Substances 0.000 claims abstract description 9
- 239000011449 brick Substances 0.000 claims description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 229910052799 carbon Inorganic materials 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 12
- 239000004575 stone Substances 0.000 claims description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract description 28
- 238000000034 method Methods 0.000 abstract description 13
- 238000007599 discharging Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 241001417490 Sillaginidae Species 0.000 abstract description 2
- 239000003344 environmental pollutant Substances 0.000 abstract description 2
- 231100000719 pollutant Toxicity 0.000 abstract description 2
- 238000009865 steel metallurgy Methods 0.000 abstract description 2
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 9
- 239000003034 coal gas Substances 0.000 description 6
- 235000013980 iron oxide Nutrition 0.000 description 6
- 239000007789 gas Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000906 Bronze Inorganic materials 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 239000010974 bronze Substances 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002802 bituminous coal Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The utility model discloses a kind of fine ore total oxygen fused reduction iron-smelting device, belong to field of steel metallurgy, melting and reducing furnace body is made up of furnace roof (1), body of heater (2) and furnace bottom (3), and furnace roof (1) front is in dome-shaped；The body of heater (2) is the rectangular cylindrical structures that four sides furnace wall is surrounded, several uptakes (4) equally distributed, for injecting oxygen are symmetrically provided with the relative furnace wall of one pair of which, it is symmetrically provided with the relative furnace wall of one pair of which on several lower air ports (5) equally distributed, for injecting oxygen and coal dust, the relative furnace wall of one pair of which and is respectively arranged with cinder notch (6) He Tiekou (7).The utility model fine ore total oxygen fused reduction iron-smelting device, can be achieved fine ore and smelts molten iron discharging in a reactor, shorten technological process；Promote iron oxide quickly to reduce, reduce energy resource consumption, reduce pollutant emission；Device structure is simple, reduces production cost.
Description
Technical field
The utility model belongs to field of steel metallurgy, is related to a kind of fine ore total oxygen fused reduction iron-smelting equipment, and in particular to
A kind of fine ore total oxygen fused reduction iron-smelting device.
Background technology
The technical characterstic of non-blast furnace ironmaking is, using mill coal ironmaking, to be divided into direct-reduction and melting and reducing.Direct-reduction
Refer to iron ore at a temperature of less than ore melt, iron ore is smelted into by solid state reduction the technical process of iron；Directly also
The product that original is obtained is still solid-state, remains a large amount of micro- stomatas formed during iron ore oxygen loss, referred to as sponge iron, also referred to as direct
Reduced iron；DRI needs molten point of electric furnace just to obtain molten iron.Melting and reducing refers to without using blast furnace, in high-temperature fusion shape
The method of reducing iron ore under state, its product is the liquid molten iron close with blast-melted composition.Main fused reduction iron-smelting
Technique has COREX, FINEX, HIsarna and Romelt.COREX and FINEX techniques are utilized respectively shaft furnace and fluid bed to iron ore
Stone carries out prereduction, belongs to two-step method melting and reducing, and technique linking is complicated；HIsarna and Romelt techniques exist furnace wall easily by
Slag action is damaged, the problems such as smelting high energy consumption.
The problems such as complex process based on the presence of existing ironmaking technique of fusion and reduction, smelting high energy consumption, is, it is necessary to a kind of powder
Ore deposit total oxygen fused reduction iron-smelting device is to solve the above problems.
Utility model content
Technical problem to be solved in the utility model, which is to provide one kind, can promote iron oxide quickly to reduce, simplify technique
Flow, the fine ore total oxygen fused reduction iron-smelting device for reducing energy resource consumption.
The utility model solves the technical scheme that its technical problem used：Fine ore total oxygen fused reduction iron-smelting device,
The melting and reducing furnace body of fine ore charge door is provided with including top, melting and reducing furnace body is made up of furnace roof, body of heater and furnace bottom,
Furnace roof front is in dome-shaped；The body of heater is right on the rectangular cylindrical structures that four sides furnace wall is surrounded, the relative furnace wall of one pair of which
It is provided with several uptakes equally distributed, for injecting oxygen with claiming, one pair of which is symmetrically set on relative furnace wall
Several lower air ports equally distributed, for injecting oxygen and coal dust are equipped with, one pair of which is set respectively on relative furnace wall
There are cinder notch and Tie Kou.
Wherein, the furnace wall of furnace roof is respectively edge brick cooling wall and box hat from inside to outside；Distinguish from inside to outside the furnace wall of body of heater
For alumina firebrick, smooth surface cooling wall and box hat.
Wherein, furnace bottom is respectively from top to bottom carbon brick layer, water-cooled layer and concrete layer.
Wherein, carbon brick has been built in body of heater inner bottom part region by laying bricks or stones.
Wherein, cinder notch 6 is copper coolant jacket, and iron mouthful is built by laying bricks or stones by prefabricated carbon brick.
Wherein, two row's uptakes are symmetrically provided with the relative furnace wall of one pair of which, the quantity of uptake is five；Its
In air port under two rows is symmetrically provided with a pair of relative furnace walls, the quantity in lower air port is five.
The beneficial effects of the utility model are：1st, can be real using application scheme fine ore total oxygen fused reduction iron-smelting device
Existing fine ore smelts molten iron discharging in a reactor, eliminates the agglomeration process step and prereduction system of fine ore, shortens work
Skill flow, automaticity is high；2nd, by be symmetrically arranged on rectangular cylindrical body of heater several injecting oxygens uptake and
The lower air port of several injecting oxygens, coal dust, adds the heat energy in molten bath, while each regional chemistry in stove can be made full use of anti-
The heat energy that should be produced, promotes iron oxide and quickly reduces, and reduces energy resource consumption, reduces pollutant emission；3rd, adaptability to raw material
Extensively, product stability is good；4th, device structure is simple, and production chains are high, reduce production cost.
Brief description of the drawings
Fig. 1 is the front section view of the utility model one of which embodiment；
Fig. 2 is the sectional view at A-A in Fig. 1；
Marked in figure：Furnace roof 1, body of heater 2, furnace bottom 3, uptake 4, lower air port 5, cinder notch 6, iron mouthful 7, edge brick cooling wall
11st, box hat 12, alumina firebrick 21, smooth surface cooling wall 22, carbon brick 23, carbon brick layer 31, water-cooled layer 32, concrete layer 33.
Embodiment
The utility model is further illustrated below in conjunction with the accompanying drawings.
As shown in Figure 1 and Figure 2, fine ore total oxygen fused reduction iron-smelting device, including top are provided with the melting of fine ore charge door
Furnace body is reduced, melting and reducing furnace body is made up of furnace roof 1, body of heater 2 and furnace bottom 3, the front of furnace roof 1 is in dome-shaped, can by Fig. 2
Know, the side sectional view of furnace roof 1 is rectangular, be to improve the bulk strength of furnace roof 1 by the purpose that furnace roof 1 is arranged to the shape；Institute
It is the rectangular cylindrical structures that four sides furnace wall is surrounded to state body of heater 2, it is to be understood that the cross section of body of heater 2 is rectangle, one pair of which
Several uptakes 4 equally distributed, for injecting oxygen are symmetrically provided with relative furnace wall, one pair of which is relative
Several lower air ports 5 equally distributed, for injecting oxygen and coal dust are symmetrically provided with furnace wall, one pair of which is relative
Cinder notch 6 and iron mouthful 7 are respectively arranged with furnace wall.
The operation principle of above-mentioned technical proposal is that fine ore is entered in stove by fine ore charge door, and burn the high temperature cigarette produced
Gas heats fine ore in dome-shaped furnace roof, and the temperature of high-temperature flue gas is about 1400 DEG C, and fine ore heating fusing is formed in molten bath, molten bath
Iron oxide while be raised CO reduction, while migrating downward into；It should be noted that fine ore can be fine iron breeze or iron content
Dirt mud, the particle diameter of miberal powder should be less than 3mm；Uptake 4 is blown into oxygen, and oxygen can be deep cooling oxygen or pressure-variable adsorption system
Oxygen, it is desirable to which oxygen concentration is more than 85%, and oxygen combustion part CO releases heat, fusing and reduction for Iron Ore Powder provide heat,
The reaction that the region of uptake 4 occurs has：
Fe2O3+ CO=Fe3O4+CO2 (1)
Fe2O3+H2=Fe3O4+H2O (2)
Fe3O4+ CO=FeO+CO2 (3)
Fe3O4+H2=FeO+H2O (4)
FeO+CO=Fe+CO2 (5)
FeO+H2=Fe+H2O (6)
2CO+O2=2CO2 (7)
CO、H2、CO2Coal gas (hereinafter referred to as coal gas) in stove is formed etc. gas mixing, can be blown by controlling uptake 4
Amount of oxygen adjusts the oxidizability of coal gas, so as to adjust the degree of metalization of furnace charge.Lower air port 5 sprays into oxygen and coal dust, and coal dust can
To be to fix carbon content more than 60% in anthracite or bituminous coal and anthracitic mixing coal, coal dust, oxygen and coal dust firing life
Into CO, heat and reducing agent are provided for iron oxide reduction, the temperature in the lower region of air port 5 can reach more than 1500 DEG C, and furnace charge is under
After the restore-zone of air port 5, oxides-containing iron Restore All is metallic iron, and the reduction potential of coal gas is 75%-95%, coal after reduction
Further reducing iron oxides in gas floating-upward process.The key reaction that the lower region of air port 5 occurs has：
CO2+ C=2CO (7)
FeO+CO=Fe+CO2 (8)
FeO+C=Fe+CO (9)
2C+O2=2CO (10)
2CO+O2=2CO2 (11)
The lower region of air port 5 is to ensure the percent reduction of ferriferous oxide, it is necessary to control the injection amount of coal dust and oxygen to ensure to adjust
There is higher reduction potential in section stove.In order to make full use of the heat energy and chemical energy of coal gas, the injecting oxygen of uptake 4 burns under
The CO that air port 5 is floated, fusing and reduction for fine ore provide heat.High-temperature flue gas discharge melting and reducing furnace body before with powder
Ore deposit is entered promoting the circulation of qi-powder in dome-shaped furnace roof and quickly exchanged heat, not only can be with rapid melting fine ore, and utilizes obvious heat of smoke, reduces cigarette
Gas discharge temperature.Bath temperature is 1400-1500 DEG C in melting and reducing furnace body, and fine ore is that 2-4 is small from stove is entered to the recovery time
When.In order to promote iron oxide reduction to need the reducing atmosphere in stove, the coal dust that lower air port 5 is blown should be excessive, and uptake 4 is controlled
The reduction potential of coal gas processed is 80% or so.Reduce obtained metallic iron and be gathered into drop, drop to by the density contrast with clinker
Melting and reducing furnace body bottom, the slag after reduction floats over molten iron top.Clinker is regularly discharged by cinder notch 6, and water quenching forms water quenching
Slag.Tapping a blast furnace at intervals of 1.5-2 hours for molten iron, is discharged by iron mouthful, for being cast as pig or direct steelmaking；Melting and reducing
The high-temperature flue gas of generation carries out waste heat recovery by waste heat boiler, prepares steam.
It is preferred that, the furnace wall of furnace roof 1 is respectively edge brick cooling wall 11 and box hat 12, the gold of edge brick cooling wall 11 from inside to outside
Category casting in bronze is made, and the refractory brick inlayed is high-alumina brick, and box hat 12 is welded by ordinary carbon steel；The furnace wall of body of heater 2 is respectively from inside to outside
Alumina firebrick 21, smooth surface cooling wall 22 and box hat 12, smooth surface cooling wall 22 are cast with metallic copper, and box hat 12 is welded by ordinary carbon steel
Connect.
It is preferred that, furnace bottom 3 is respectively from top to bottom carbon brick layer 31, water-cooled layer 32 and concrete layer 33.In water-cooled layer 32
One layer of circulating water pipe of even distribution, for cooling furnace bottom 3.
It is preferred that, carbon brick 23 has been built in the inner bottom part region of body of heater 2 by laying bricks or stones.
It is preferred that, cinder notch 6 is copper coolant jacket, for discharging clinker；Iron mouthful 7 is built by laying bricks or stones by prefabricated carbon brick, can also be with advance
High alumina brick masonry processed, for discharging the molten iron that reduction is obtained.
It is preferred that, two row's uptakes 4 are symmetrically provided with the relative furnace wall of one pair of which, the quantity of uptake 4 is five
It is individual；Air port 5 under two rows is symmetrically provided with the relative furnace wall of one pair of which, the quantity in lower air port 5 is five.Uptake 4, under
Air port 5 is existing structure, is made and formed using casting in bronze.Applicant on body of heater 2 in practice, it has been found that be symmetrically arranged on two rows
When air port 4, lower air port 5, the best results of melting and reducing iron.
Claims (6)
1. fine ore total oxygen fused reduction iron-smelting device, including top are provided with the melting and reducing furnace body of fine ore charge door, it is special
Levy and be：Melting and reducing furnace body is made up of furnace roof (1), body of heater (2) and furnace bottom (3), and furnace roof (1) front is in dome-shaped；It is described
It is equal that several are symmetrically provided with the rectangular cylindrical structures that body of heater (2) surrounds for four sides furnace wall, the relative furnace wall of one pair of which
Several uniform point is symmetrically provided with even distribution, uptake (4) for injecting oxygen, the relative furnace wall of one pair of which
Cinder notch (6) and iron are respectively arranged with cloth, lower air port (5) for injecting oxygen and coal dust, the relative furnace wall of one pair of which
Mouth (7).
2. fine ore total oxygen fused reduction iron-smelting device according to claim 1, it is characterised in that：The furnace wall of furnace roof (1) by
It is respectively edge brick cooling wall (11) and box hat (12) from inside to outside；The furnace wall of body of heater (2) is respectively alumina firebrick from inside to outside
(21), smooth surface cooling wall (22) and box hat (12).
3. fine ore total oxygen fused reduction iron-smelting device according to claim 1, it is characterised in that：Furnace bottom (3) is from top to bottom
Respectively carbon brick layer (31), water-cooled layer (32) and concrete layer (33).
4. fine ore total oxygen fused reduction iron-smelting device according to claim 1, it is characterised in that：Body of heater (2) inner bottom part area
Carbon brick (23) is built by laying bricks or stones in domain.
5. fine ore total oxygen fused reduction iron-smelting device according to claim 1, it is characterised in that：Cinder notch (6) is copper cold
But cover, iron mouthful (7) is built by laying bricks or stones by prefabricated carbon brick.
6. fine ore total oxygen fused reduction iron-smelting device according to claim 1, it is characterised in that：The relative stove of one pair of which
Two row's uptakes (4) are symmetrically provided with wall, the quantity of uptake (4) is five；It is symmetrical on the relative furnace wall of one pair of which
Ground is provided with air port (5) under two rows, and the quantity of lower air port (5) is five.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720277969.2U CN206580851U (en) | 2017-03-21 | 2017-03-21 | Fine ore total oxygen fused reduction iron-smelting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720277969.2U CN206580851U (en) | 2017-03-21 | 2017-03-21 | Fine ore total oxygen fused reduction iron-smelting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206580851U true CN206580851U (en) | 2017-10-24 |
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ID=60114816
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720277969.2U Active CN206580851U (en) | 2017-03-21 | 2017-03-21 | Fine ore total oxygen fused reduction iron-smelting device |
Country Status (1)
| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108690896A (en) * | 2018-06-11 | 2018-10-23 | 安徽工业大学 | A kind of high intensity short route melting, reducing and smelting device and method |
| CN110714106A (en) * | 2019-10-30 | 2020-01-21 | 沈忠凡 | Blast furnace optimization smelting method of high-titanium type vanadium titano-magnetite |
| CN112322818A (en) * | 2020-10-29 | 2021-02-05 | 钢研晟华科技股份有限公司 | Full-oxygen melting reduction iron-making method for high-sulfur iron-containing raw material |
-
2017
- 2017-03-21 CN CN201720277969.2U patent/CN206580851U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108690896A (en) * | 2018-06-11 | 2018-10-23 | 安徽工业大学 | A kind of high intensity short route melting, reducing and smelting device and method |
| CN108690896B (en) * | 2018-06-11 | 2020-06-02 | 安徽工业大学 | High-strength short-flow smelting reduction smelting device and method |
| CN110714106A (en) * | 2019-10-30 | 2020-01-21 | 沈忠凡 | Blast furnace optimization smelting method of high-titanium type vanadium titano-magnetite |
| CN112322818A (en) * | 2020-10-29 | 2021-02-05 | 钢研晟华科技股份有限公司 | Full-oxygen melting reduction iron-making method for high-sulfur iron-containing raw material |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Sichuan Titanium Technology Co.,Ltd. Assignor: PANZHIHUA University Contract record no.: X2024980005910 Denomination of utility model: Powder ore full oxygen melting reduction ironmaking device Granted publication date: 20171024 License type: Common License Record date: 20240517 |
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| EE01 | Entry into force of recordation of patent licensing contract |