CN105805728B - A kind of oxide ore flash metallurgy dispenser - Google Patents
A kind of oxide ore flash metallurgy dispenser Download PDFInfo
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- CN105805728B CN105805728B CN201610283936.9A CN201610283936A CN105805728B CN 105805728 B CN105805728 B CN 105805728B CN 201610283936 A CN201610283936 A CN 201610283936A CN 105805728 B CN105805728 B CN 105805728B
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- Prior art keywords
- vaporizer
- spray gun
- material inlet
- oxide ore
- dispenser
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B90/00—Combustion methods not related to a particular type of apparatus
- F23B90/04—Combustion methods not related to a particular type of apparatus including secondary combustion
- F23B90/06—Combustion methods not related to a particular type of apparatus including secondary combustion the primary combustion being a gasification or pyrolysis in a reductive atmosphere
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
- F23K3/02—Pneumatic feeding arrangements, i.e. by air blast
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K5/00—Feeding or distributing other fuel to combustion apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K2203/00—Feeding arrangements
- F23K2203/20—Feeding/conveying devices
- F23K2203/201—Feeding/conveying devices using pneumatic means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention provides a kind of oxide ore flash metallurgy dispenser, including vaporizer, spray gun, material inlet, spray gun to be arranged on vaporizer, and penetrate gasification chamber interior walls, stretch into vaporizer, vaporizer bottom sets material inlet, and material inlet connects with vaporizer outlet at bottom.The advantage of oxide ore dispenser of the present invention is：Gas making, the process of heating are isolated with the process to ore deposit, it is ensured that reliable gas making and heating；Gas making is completed, and after high-temperature reducing gas leaves vaporizer, can be sufficiently mixed with the most fast speed of distance of minimum with leaving the raw material after dispenser, so that reduction reaction can quickly occur, is saved the space of flash metallurgy smelting in suspension.
Description
Technical field
The invention belongs to flash field of metallurgy, more particularly, to a kind of oxide ore flash metallurgy dispenser.
Background technology
In flash field of metallurgy, the charging gear comparative maturity of sulphide ore, by taking the nozzle of copper Flash Smelting Furnace as an example, it is mainly appointed
Business is to spray into Flash Smelting Furnace, sulphide ore miberal powder and oxygen after being sufficiently mixed dried powdery copper sulfide concentrate and oxygen-enriched air
Amount of heat is released while reacting, autogenous smelting can be achieved, i.e., " single step reaction ".
And it is infeasible for the smelting of oxide ore, " single step reaction ", it is necessary to provide one first and be full of reducing atmosphere
Hot environment, can just make oxide ore that reduction reaction quickly occur, how accomplish this point, while make full use of flash metallurgical again
General principle, be the key technology for realizing that oxide ore flash is metallurgical.
The content of the invention
In view of this, the present invention is directed to propose a kind of flash metallurgy oxide ore charging gear is fed to flash furnace reaction tower
While, moreover it is possible to manufacture reducing gas and provide heat to reaction tower, reaction tower is formed the good high temperature reduction of metallurgical performance
Environment, so as to realize the space reduction melting of oxide ore.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of oxide ore flash metallurgy dispenser, including vaporizer, spray gun, material inlet, spray gun are arranged on vaporizer, and
Gasification chamber interior walls are penetrated, are stretched into vaporizer, vaporizer bottom sets material inlet, and material inlet connects with vaporizer outlet at bottom
It is logical.Vaporizer is used for producing reducibility gas and provides heat to Flash Smelting Furnace；Spray gun is spraying into oxygen-containing gas into vaporizer
(air, oxygen-enriched, pure oxygen) and gas making raw material is such as：It is one or more in coal dust, water-coal-slurry, vapor, natural gas, fuel oil, methane
Combination, oxygen-containing gas and gas making raw material produce reducibility gas after being reacted and release heat；Spray gun can be single channel or
Multichannel, a kind of raw material can be only sprayed, such as oxygen or coal dust, multichannel spray gun can also be blown plurality of raw materials simultaneously, such as spray into simultaneously
Oxygen and coal dust；Material inlet is used for adding the raw material and auxiliary material of metallurgical needs, such as mineral aggregate, flux.Feed of the present invention
Device by by vaporizer and material inlet integration connection and be integrated into an autonomous device, realize gasification and feed function.
Further, the material inlet is set in vaporizer bottom level, is evenly arranged around vaporizer outlet at bottom, can
To be configured to 2 material inlets, or 3,4,6, the material inlets such as 8, the purpose is to make the gas of powder and gas outlet abundant
Mixing.The diameter of material inlet is more than the diameter of gasification floor chamber outlet, blocks material inlet with the slag for avoiding vaporizer from discharging, together
When, can also reduce the downward pressure of gasification chamber outlet air-flow, and then reduce this oxide ore flash metallurgy dispenser outlet material to
Under jet velocity, in addition, to also contribute to material along the circumferential direction dispersed for the diameter for expanding material inlet, avoid material undue
Concentrate on middle part.Material enters vaporizer bottom from material inlet, can be fallen by flow by gravity, can also use compressed air, nitrogen
Gas or the pressurization such as oxygen-enriched are sent into.
Further, the material inlet is sandwich construction.Set multilayer material inlet to simplify dispensing flow, reduce and throw
Money, when having plurality of raw materials or flux is necessarily drawn to mixed smelting, Normal practice is claimed respectively before raw material enters Flash Smelting Furnace
After metering, then batch mixing, the large scale equipments such as the feed bin, belt conveyer scale, transfer station for occupying big quantity space need to be used.And multilayer material inlet can
Each raw material is directly sent to the method conveyed using wind fen-ting amount by material inlet, mixed in exit；Above-mentioned function, if
When feeding coal is little, in individual layer feed, it is fed by way of distributing different material inlets to different material, can be also realized.
Further, the material inlet discharging direction and the angle of vaporizer outlet at bottom airflow direction are not more than 90 °, by force
What is adjusted is that the discharging direction of material inlet is horizontal or tilted down, to prevent material from pouring in down a chimney blocking discharging opening, or damage feed
Device.
Further, around cooling jacket is set between vaporizer and material inlet, material inlet and tweer surround to set and cooled down
Water jacket, the purpose is to protect material inlet, prevent it by high temperature melting loss.
Further, the spray gun is arranged at the top of vaporizer.When the heat of a spray gun gas making amount or offer can not expire
When foot requires, one group of spray gun is evenly arranged at the top of vaporizer, the increase gas making amount or heat that can be smoothed out.
Further, the spray gun is multigroup that every group of spray gun is arranged on different level, the spray in same level
Rifle, offside is positioned opposite two-by-two, in use, set in vaporizer side wall spray gun is realized fuel and oxygen to spray, with
Strengthen gas making effect, improve the utilization rate of gas making raw material.
Further, the spray gun is multigroup that every group of spray gun is arranged on different level, the spray in same level
Rifle, offside parallel stagger setting two-by-two.Arrangement above can make gasification chamber outlet flow rotation, allow and be arranged in vaporizer side wall
Four rifles it is at an angle to penetrating, caused swirling eddy can be fed with tangential way be sent into mineral aggregate be sufficiently mixed, and
The reaction tower of orderly feeding Flash Smelting Furnace, enables material dispersed in Flash Smelting Furnace.
Further, the spray gun is multigroup to be symmetricly set in vaporizer side wall, the spray gun in same level, edge
Identical direction of rotation, in the same plane along 2-20 ° of disalignment.Arrangement above can make gasification chamber outlet flow rotation,
Make four rifles being arranged in vaporizer side wall at an angle to penetrating, caused swirling eddy can be sent with being fed with tangential way
The mineral aggregate entered is sufficiently mixed, and the reaction tower of orderly feeding Flash Smelting Furnace, enables material dispersed in Flash Smelting Furnace.
Further, the vaporizer is one in cuboid, square, cylinder, polygon cube, spherical structure
Kind.The basic configuration of vaporizer is cylinder, but considers the limitation in space, or the difference of material, the spatial form of other forms
Also can use, the influence to gasification result is little.
The outlet diameter of vaporizer can be equal to the diameter of vaporizer, there is provided atmosphere gas.The diameter of gasification chamber outlet
The diameter of vaporizer can be less than, to provide an air-flow for thering is pressure to send out, the size of pressure by vaporizer outlet diameter
Size determine, outlet diameter is smaller, and pressure is bigger, and the speed for sending out gas is faster.
When the timing of gasification chamber outlet diameter one, by increasing the feeding coal of spray gun, response intensity is improved, gas can also be increased
Change the pressure of room, usual this pressure is 0 between 6Mpa.
The application method of the oxide ore flash metallurgy dispenser is as follows：
S1:Raw material and fuel prepare：Miberal powder or regenerative raw materials are worn into the powder below 100 mesh and are dried, if making
Gas raw material uses coal dust then to wear into below 200 mesh, then needs first dispensing to produce if water-coal-slurry, if fuel oil, naturally
Gas, methane etc. can be fed directly to spray gun.
S2:By spray gun, oxygen-containing gas (air, oxygen rich gas or pure oxygen) gas making raw material, (coal dust, water-coal-slurry, water steam
It is one or more in gas, natural gas, fuel oil, methane) while spray into vaporizer, after chemical reaction moment produce high temperature reduction gas
Body.
S3:Miberal powder or regenerative raw materials powder enter dispenser by material inlet, and some smelt auxiliary material such as flux etc.
Dispenser can be added from material inlet.
S4:In dispenser bottom, miberal powder or regenerative raw materials powder after the abundant disperse of reducing gas with entering in Flash Smelting Furnace.
The structure of oxide ore flash metallurgy dispenser of the present invention is in one relative closure of vaporizer internal build
Gasification environment, making oxygen-containing gas and gas making raw material, fully gasification is reducibility gas in vaporizer, along outlet at bottom direction shape
Into an air-flow, after the metallurgical raw material or auxiliary material that enter with material inlet are sufficiently mixed, into the reaction tower of Flash Smelting Furnace in carry out smelting
Refining.
Dispenser of the present invention effectively incorporates material inlet and gas making room, compact-sized, is realized with single equipment
The synchronous feed into Flash Smelting Furnace, heat supply, supply and the quadruple function of batch mixing in advance, relative to it is more existing tail gas is reformed after
Return again to the mode that feeding system carries out batch mixing feed, avoid thermal loss of the high-temperature gas in long range transport process and
(requirement of the conveying of more than 1000 DEG C of high-temperature tail gas to pipeline material is higher, and piping cost is high, the longevity for loss to transmission pipeline
Order short)；Simultaneously as not needing auxiliary device (such as tail gas cracking converting apparatus, gas pressurized conveying equipment), greatly reduce
One-time investment, also makes the fault rate of complete equipment greatly reduce, so as to reduce equipment cost and maintenance cost.In addition,
Dispenser vaporizer gas making principle of the present invention is simple, and it is anti-to carry out simple chemistry using gas making raw material (such as coal dust) and oxygen
Should be that can be achieved, without by way of other complex and expensives (such as plasma electric from, gas conversion) realize gas making or
Gas converts, simple and easy to control, greatly reduces production and use cost.In brief, dispenser of the present invention, which realizes, sets
Standby miniaturization, lightweight, investment is small, it is low with use cost to safeguard, takes full advantage of gasification produces heat, energy-saving.
Relative to prior art, a kind of oxide ore flash metallurgy dispenser of the present invention has the advantage that：
A kind of oxide ore flash metallurgy dispenser of the present invention makes gas making, exothermic process with being isolated to ore deposit process,
Ensure reliable gas making and heating；After high-temperature reducing gas leaves vaporizer, can with the most fast speed of distance of minimum and leave to
Raw material after glassware is sufficiently mixed, so that reduction reaction can quickly occur, saves the space of flash metallurgy smelting in suspension.
Brief description of the drawings
The accompanying drawing for forming the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is a kind of oxide ore flash metallurgy dispenser structural representation of the present invention；
Fig. 2 is structural representation when a kind of oxide ore flash metallurgy dispenser of the present invention sets top lance；
Fig. 3 is structural representation when a kind of oxide ore flash metallurgy dispenser of the present invention sets side wall spray gun；
Fig. 4 is that a kind of oxide ore flash metallurgy dispenser of the present invention sets the structure during plus side wall spray gun of top to show
It is intended to；
Fig. 5 is a kind of set location schematic diagram 1 of oxide ore flash metallurgy dispenser side wall spray gun of the present invention；
Fig. 6 is a kind of set location schematic diagram 2 of oxide ore flash metallurgy dispenser side wall spray gun of the present invention；
Fig. 7 is a kind of set location schematic diagram 3 of oxide ore flash metallurgy dispenser side wall spray gun of the present invention；
Fig. 8 sets schematic diagram for a kind of material inlet position of oxide ore flash metallurgy dispenser four of the present invention.
Description of reference numerals：
1st, vaporizer, 1-1, cuboid vaporizer, 1-2, polygon cube vaporizer, 2, spray gun, 2-1, top lance,
2-2, side wall spray gun, 3, material inlet, 3-1, individual layer material inlet, 3-2, double-deck material inlet, 4, outlet at bottom, 5, vaporizer and feed
Cooling jacket between mouthful, 6, material inlet and tweer cooling jacket.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in figure 1, a kind of oxide ore flash metallurgy dispenser, including vaporizer 1, spray gun 2, material inlet 3, spray gun 2 are set
It is placed on vaporizer 1, and penetrates the inwall of vaporizer 1, stretch into vaporizer 1, the bottom of vaporizer 1 sets material inlet 3, and is fed
Mouth 3 connects with the outlet at bottom 4 of vaporizer 1.Vaporizer 1 is used for producing reducibility gas and provides heat；Spray gun 2 is to gasification
Oxygen-containing gas and gas making raw material are sprayed into room 1 such as：It is one or more in coal dust, water-coal-slurry, vapor, natural gas, fuel oil, methane
Combination, for producing reducibility gas and providing heat for flash furnace reaction tower, spray gun 2 can be single channel or multichannel, can
A kind of raw material is only sprayed, multichannel spray gun can also be blown plurality of raw materials simultaneously；Material inlet is used for adding the raw material or auxiliary of metallurgical needs
Material, such as mineral aggregate, flux.
The material inlet 3 is set in the bottom level of vaporizer 1, is evenly arranged around the outlet at bottom 4 of vaporizer 1, material inlet 3
2,3,4,6, multiple material inlets such as 8 can be configured, as shown in figure 8, the outlet at bottom 4 of vaporizer 1 be provided with 4 to
Material mouth 3.
The material inlet 3 is sandwich construction.Set multilayer material inlet to simplify dispensing flow, reduce investment, it is more when having
When kind of raw material or flux are necessarily drawn to mixed smelting, Normal practice be before raw material enters Flash Smelting Furnace respectively after Weighing,
Batch mixing again, the large scale equipments such as the feed bin, belt conveyer scale, transfer station for occupying big quantity space need to be used；And multilayer material inlet can utilize wind
Each raw material is directly sent to material inlet by the method for fen-ting amount conveying, is mixed in exit；Above-mentioned function, if feeding coal is not
When big, in individual layer feed, it is fed by way of distributing different charging apertures to different material, can be also realized.Such as Fig. 3 and figure
It is double-deck material inlet 3-2 by the invention shown in 4, certainly in the case where equipment needs, the present invention can also be such as Fig. 2 institutes
Show, 4 material inlets, such as Fig. 8 are uniformly configured around vaporizer outlet at bottom 4 using individual layer material inlet 3-1, individual layer material inlet 3-1
It is shown.
As Figure 1-4, around cooling jacket 5 is set between vaporizer 1 and material inlet 3, material inlet 3 and tweer, which are surround, to be set
Cooling jacket 6 is put, the purpose is to protect material inlet, prevents it by high temperature melting loss.
As shown in figure 1, the crown center position of vaporizer 1 is provided with a spray gun 2.Can also be as shown in Fig. 2 vaporizer 1
Top sets top lance 2-1, and spray gun quantity is multiple, is evenly arranged at the top of vaporizer.Can also be in vaporizer side wall
Side wall spray gun 2-2 is set, as shown in Figure 3.
The spray gun is multigroup, and every group of spray gun is arranged on different level, can also be as shown in figure 5, same level
Interior spray gun, is oppositely arranged two-by-two.The spray gun is multigroup, and every group of spray gun is arranged on different level, can also be such as Fig. 6 institutes
Show, the spray gun in same level, offside parallel stagger setting two-by-two.Can also be as shown in fig. 7, spray in same level
Rifle, along identical direction of rotation, 2-20 ° of same plane interior edge disalignment.
Setting to spray gun, both the above situation can be combined, is respectively provided with spray gun at the top of vaporizer and in side wall, specifically
Structure is as shown in Figure 4.
The vaporizer 1 is one kind in cuboid, square, cylinder, polygon cube, spherical structure.Such as Fig. 1
Cuboid vaporizer 1-1 is shown with Fig. 2, is polygon cube vaporizer 1-2 as shown in Figure 3 and Figure 4.
Specific embodiment：
The outer wall of vaporizer 1 selects double-layer plate, the logical cooling water in centre, and inwall builds refractory brick or spraying indefinite form fire proofed wood
Material, refractory material thickness 50-300mm, steel plate thickness 10-35mm.Cooling water forms Quench wall, is advantageous to the ash content in coal in inwall shape
Into dross；When ash content deficiency in coal, the iron ore concentrate that 10-20% can be added in fine coal assists dross, protects furnace wall, or add
Enter other materials for being advantageous to dross, such as 5%-10% Al2O3、SiO2Deng.
Vaporizer 1 is provided with four spray guns in side wall, and fine coal, oxygen (can add vapor) spray into vaporizer 1 from spray gun 2,
Fine coal burns and gasified rapidly in vaporizer 1, and generation temperature is 1400 DEG C, the reducing atmosphere (CO+ that gas concentration is 85%
H2), four spray guns 2 are set at an angle, as shown in fig. 6, making the air-flow of gasification form swirling eddy, are exported from vaporizer 1
Spray.
Iron ore concentrate is the product that general ore dressing plant comes out, and granularity is 200 mesh to 300 mesh, and iron ore concentrate is added by oxygen-enriched
Pressure, dispenser is sprayed into from material inlet 3.Material inlet 3 is as shown in figure 8, make miberal powder be uniformly divided into four parts along the pipeline of material inlet 3
Tangential direction enters the outlet at bottom 4 of vaporizer 1, and disperses along the edge of outlet at bottom 4, and the design can prevent material the bottom of at
Portion export center position concentrate, miberal powder after leaving feed port during falling to reaction tower space, with rotate counterclockwise
Mode falls.
The exit flow of vaporizer 1 is in counterclockwise rotates, and the iron ore concentrate sprayed with material inlet 3 mixes, two kinds of gas-solid
Material mixes fully in rotary course, forms columnar vortex disperse in flash furnace reaction tower space, obtains flash metallurgy principle
Smoothly to apply.
These are only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (10)
- A kind of 1. oxide ore flash metallurgy dispenser, it is characterised in that：Including vaporizer (1), spray gun (2), material inlet (3), spray Rifle (2) is arranged on vaporizer (1), and penetrates vaporizer (1) inwall, is stretched into vaporizer (1), and vaporizer (1) bottom is set Material inlet (3), and material inlet (3) connects with vaporizer (1) outlet at bottom (4)；To spray into oxygen-containing gas and gas making raw material into vaporizer (1), oxygen-containing gas and gas making raw material are carried out the spray gun (2) Reducibility gas is produced after reaction and releases heat.
- 2. a kind of oxide ore flash metallurgy dispenser according to claim 1, it is characterised in that the material inlet (3) is in gas Change room (1) bottom level to set, be evenly arranged around vaporizer (1) outlet at bottom (4).
- 3. a kind of oxide ore flash metallurgy dispenser according to claim 1, it is characterised in that the material inlet (3) is more Rotating fields.
- A kind of 4. oxide ore flash metallurgy dispenser according to claim 2, it is characterised in that material inlet (3) discharging Direction is not more than 90 ° with vaporizer (1) outlet at bottom (4) airflow direction angle.
- 5. a kind of oxide ore flash metallurgy dispenser according to claim 1, it is characterised in that vaporizer (1) and material inlet (3) around cooling jacket is set between, material inlet (3) and tweer, which are surround, sets cooling jacket.
- 6. a kind of oxide ore flash metallurgy dispenser according to claim 1, it is characterised in that set at the top of vaporizer (1) There is spray gun (2).
- A kind of 7. oxide ore flash metallurgy dispenser according to claim 1, it is characterised in that the spray gun (2) to be multigroup, Every group of spray gun is arranged on different level, and the spray gun in same level, offside is oppositely arranged two-by-two.
- A kind of 8. oxide ore flash metallurgy dispenser according to claim 1, it is characterised in that the spray gun (2) to be multigroup, Every group of spray gun is arranged on different level, the spray gun in same level, offside parallel stagger setting two-by-two.
- A kind of 9. oxide ore flash metallurgy dispenser according to claim 1, it is characterised in that the spray gun (2) to be multigroup, It is symmetricly set in vaporizer (1) side wall, the spray gun in same level, along identical direction of rotation, in the same plane in 2-20 ° of heart line skew.
- 10. a kind of oxide ore flash metallurgy dispenser according to claim 1, it is characterised in that the vaporizer (1) is length One kind in cube, square, cylinder, polygon cube, spherical structure.
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| CN110396606A (en) * | 2019-09-05 | 2019-11-01 | 天津闪速炼铁技术有限公司 | A kind of flash metallurgy gas package integral supply system and method for mixing |
| CN110440596A (en) * | 2019-09-05 | 2019-11-12 | 天津闪速炼铁技术有限公司 | A kind of Flash Smelting Furnace air distribution system and distribution smelting process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4062673A (en) * | 1975-12-22 | 1977-12-13 | Robert Ames Norton | Flash smelting of iron with production of hydrogen of hydrogenation quality |
| FI57786C (en) * | 1978-12-21 | 1980-10-10 | Outokumpu Oy | SAETTING OVER ANCILLATION FOR PICTURE AV EN VIRVLANDS SUSPENSIONSTRAOLE AV ETT POWDERARTAT MATERIAL OCH REACTIONS |
| JP5561234B2 (en) * | 2011-04-15 | 2014-07-30 | 住友金属鉱山株式会社 | Concentrate burner and smelting furnace |
| US10100378B2 (en) * | 2013-12-19 | 2018-10-16 | Tata Steel Nederland Technology B.V. | Method to operate a smelt cyclone |
| CN104673954B (en) * | 2015-02-13 | 2017-03-22 | 湖南长拓高科冶金有限公司 | Direct-reduction ironmaking method and system for iron-containing mineral powder |
| CN205133650U (en) * | 2015-04-30 | 2016-04-06 | 北京闪铁科技有限公司 | Gas making flash iron making system |
| CN205717169U (en) * | 2016-04-28 | 2016-11-23 | 天津闪速炼铁技术有限公司 | A kind of oxide ore flash metallurgy dispenser |
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