CN105861834A - Swirling flow flash smelting process - Google Patents
Swirling flow flash smelting process Download PDFInfo
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- CN105861834A CN105861834A CN201610280697.1A CN201610280697A CN105861834A CN 105861834 A CN105861834 A CN 105861834A CN 201610280697 A CN201610280697 A CN 201610280697A CN 105861834 A CN105861834 A CN 105861834A
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- reaction tower
- breeze
- eddy flow
- flash smelting
- flow
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- 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
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/12—Dry methods smelting of sulfides or formation of mattes by gases
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- 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
- C22B23/00—Obtaining nickel or cobalt
- C22B23/02—Obtaining nickel or cobalt by dry processes
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention provides a swirling flow flash smelting process. The process comprises the following steps that (1) raw materials are prepared, and raw ores and fluxing agents are crushed and dried; (2) swirling flow is manufactured, an airflow guide-in device arranged on the sidewall of a reaction tower of a flash furnace is used for jetting reactant gas into the flash furnace at a high speed and brings heat in, a swirling flow area is formed in the reaction tower, and a high-temperature environment of 1000-1450 DEG C is formed in the reaction tower; (3) materials are charged; and (4) swirling flow smelting is carried out. Through the swirling flow flash smelting process provided by the invention, on one hand, the dropping track of ore powder can be lengthened, and the ore powder can make more contact with the reactant gas, so that the chemical reaction efficiency of the ore powder and the reactant gas in the space of the reaction tower is improved, the smelting efficiency of the ore powder is improved, and the utilization rate of the reactant gas is increased; and on the other hand, the dispersion effect of the ore powder can be optimized, the ore powder is orderly distributed from the center of the reaction tower to the edge according to the sizes of particles, and the situation that the materials are stacked in the center of the flash furnace is avoided.
Description
Technical field
The invention belongs to Flash Smelting field, especially relate to a kind of eddy flow Flash Smelting technique.
Background technology
At present Flash Smelting Furnace, participate in the main material (such as breeze, oxygen, flux etc.) of reaction all
It is to add stove from the nozzle being positioned at reaction tower top, due to the limited space of nozzle interior, even if throwing
Have employed the dispersion device such as cone during material material is disperseed, but the actual dispersion effect of material paying no attention to
Think.Further, since Flash Smelting Furnace airflow direction is to ramp up flue side from the reaction tower flue through top, molten bath
Under to flowing, in reaction tower, the falling direction of material is almost identical with air flow direction, thus breeze suspends
The track fallen is shorter, and the effect that space smelts is limited.
At present, also having tried to manufacture the mode of eddy flow around the nozzle at reaction tower top makes the material can be more
Good dispersion and batch mixing, but the diameter of the lateral dimension relative response tower of nozzle is less, and eddy flow enters from nozzle
After entering reaction tower, on the one hand eddy flow is concentrated mainly on the centre of reaction tower, on the other hand along with material
Whereabouts, the energy of eddy flow decays rapidly, the effect promoting that material dispersion and space smelt limited.
Summary of the invention
In view of this, it is contemplated that propose a kind of eddy flow Flash Smelting technique, to solve existing flash
Stove material dispersion effect is bad, and material is too short at reaction tower space fall trajectory, fails to make full use of space
Carry out the problems such as suspension smelting.
For reaching above-mentioned purpose, the technical scheme is that and be achieved in that:
A kind of eddy flow Flash Smelting technique, comprises the steps:
1) raw material prepares: raw ore and flux are crushed and be dried；Breeze will be become and is dried by crushing raw ore,
And flux is also carried out broken and is dried；
2) eddy flow is manufactured: by the air-flow gatherer of setting on flash furnace reaction tower 1 sidewall to sudden strain of a muscle
Speed stove high speed sprays into reacting gas and brings heat into, forms eddy flow district, and make reaction in reaction tower 1
Tower 1 forms 1000 DEG C～the hot environment of 1450 DEG C；
3) material charging: the fine ore after broken and flux by being arranged on the feed at reaction tower 1 top
Device 2 adds in Flash Smelting Furnace；
4) eddy flow is smelted: after fine ore enters reaction tower 1, through eddy flow district, be sufficiently stirred for by air-flow,
On the one hand make breeze and air-flow sufficiently mix, utilize the characteristic that mineral powder granular specific surface area is big, by soon
The heat transfer of speed, mass transfer, breeze is while being quickly heated to 800 DEG C of high temperature above, with reaction gas flow
Chemical reaction quickly occurs, and on the other hand, eddy flow makes fine ore spiral-falling, extends breeze in reaction
The fall trajectory in tower 1 space, makes reaction more abundant, meanwhile, also makes breeze can permeate into reaction tower in order
Everywhere.
On multiple horizontal cross-sections of reaction tower 1, multiply air-flow enters reaction tower with speed at a certain angle
1, it is forced to make gyration after running into reaction tower wall, forms eddy flow, in reaction tower 1 from top to bottom
Multiply eddy flow forms eddy flow district, after breeze enters reaction tower, owing to being affected by high speed rotating air-flow,
Tangential rotary motion is produced along airflow direction in horizontal direction, and under the common effect of self gravitation, spiral shell
Rotation moves downward；Owing to the quality of breeze is different, suffered centrifugal force is different, suffered by bulky grain breeze
Centrifugal force is big, it is possible to overcome gas-flow resistance to move to tower wall, and the centrifugal force suffered by little granule breeze is little,
And near tower wall i.e. not doing gyration with air-flow, during breeze rotates, bulky grain continues
Disperseing to periphery, little granule is then closer to central area, on reaction tower 1 horizontal cross-section, breeze
Grain diameter is increasing to Ta Bi direction by center, forms layered distribution by size, so that ore deposit
The powder orderly disperse of energy also can be fully contacted with reacting gas.Meanwhile, the granule spiral that in breeze, particle diameter is big
Drop is long, and the chance contacted with reacting gas is more, particulate central portion and the change of reacting gas
Learn reaction more abundant, to some extent solve bulky grain breeze space metallurgical effect in flash smelting
The shortcoming of difference.
Further, step 1) in original ore powder is dried to aqueous less than 0.3%, wherein, 0.3% is matter
Amount percent.The purpose being dried be in order to prevent the moisture that contains in breeze from entering Flash Smelting Furnace after, at breeze
Form water membrane around granule, stop reactant gas molecules to the diffusion within mineral powder granular.Step 1)
Middle flux also must be dried and be less than 1% to containing water quality.
Further, step 1) in crushing raw ore is become breeze, big less than the ratio of 200 mesh to particle diameter
In 50%, wherein, 50% is number percent.The purpose of crushing raw ore is formed into the breeze of small particle
Granule, the characteristic that the specific surface area that on the one hand utilizes breeze contact with reacting gas is big, by quick biography
Heat and mass transfer, in making entrance Flash Smelting Furnace, breeze is brought rapidly up and with gas, quick chemical reaction occurs；Separately
On the one hand breeze entirety particle diameter is less, it is easy to driven spiral-falling by eddy flow, contributes to reacting gas and ore deposit
The mixing of powder and the dispersion of breeze.
Further, step 1) in by the particle size distribution of breeze such as following table after crushing raw ore:
| Granularity/mesh | 10～20 | 20～100 | 100～200 | 200～300 | ＜ 300 |
| Number ratio (%) | 5 | 10 | 25 | 45 | 15 |
The centrifugal force suffered in eddy flow of the breeze of different-grain diameter is different, on reaction tower 1 circumferential section from
The position at center is the most different, has the particle size distribution of certain dispersion to contribute to breeze rotation in reaction tower 1
Disperse orderly in stream.
Further, step 2) in make the one of hot environment that reaction tower 1 forms 1000 DEG C～1450 DEG C
Planting compensation process is to provide heat by the fuel nozzle 6 being arranged on described reaction tower 1 for reaction tower 1.
If the reacting gas temperature sprayed into is relatively low, and between gas and breeze occur chemical reaction be not strongly exothermic instead
Should, then it is required to be reaction tower 1 additional heat, is put by fuel such as fuel nozzle 6 combusting heavy oil or natural gass
Heat is a kind of relatively effective method, it is of course also possible to by the charging gear at reaction tower 1 top to instead
Answer and tower 1 adds coal and oxygen, utilize the reaction of coal oxygen to provide required heat for reaction tower 1.
Further, step 2) in the jet velocity of air-flow be 50～200m/s, preferably 100～150
M/s, jet-impingement speed crosses and the speed of eddy flow can be caused slowly inadequate, the tower of the too fast reaction tower 1 that can wear and tear
Wall.By regulating the air pressure of air-flow gatherer, can control to spray into the speed of air-flow in reaction tower 1,
Can be adjusted flexibly according to demand in actual production.
Further, described air-flow gatherer is many groups, and often group is arranged at the difference of reaction tower 1 sidewall
On horizontal plane, often organize and all include multiple spray gun 3.Reaction tower 1 sidewall different level organizes spray gun more
The setting of 3 guarantees that the energy of eddy flow will not be decayed rapidly, to ensure the dispersion effect of breeze.
Further, often group gatherer includes 4 spray guns 3, the most parallel setting of staggering of offside.Spray
Rifle 3 offside the most parallel staggering arranges and can be formed centered by the center of circle in reaction tower 1 horizontal cross-section
Orderly eddy flow field.
Further, often the described spray gun 3 in group gatherer is along identical direction of rotation, at same plane
Interior along disalignment 3 °～20 °.In reaction tower 1 horizontal cross-section, by multiple spray guns 3 by phase
With direction of rotation along the setting of disalignment equal angular, it is also possible to shape in reaction tower 1 horizontal cross-section
Become the orderly eddy flow field centered by the center of circle.
Further, described air-flow gatherer import air-flow be coal gas produce reducibility gas or
Metallurgical, chemical industry pyrometallurgical smelting tail gas.Preferably blast furnace gas, coal gas of converter, coke-stove gas,
Electric furnace (mineral hot furnace) tail gas, rotary kiln exhaust gas, rotary hearth furnace tail gas etc.；Use above-mentioned industrial waste gas as smelting
Training of qi body, on the one hand makes waste gas need not, again through tail gas clean-up handling process, substantially reduce original production
The investment of technique, on the other hand reduces the production cost of metallurgical technology of the present invention, it is achieved that resource
Circulation comprehensive utilize, turn waste into wealth.
Relative to prior art, eddy flow Flash Smelting technique of the present invention has the advantage that
On the one hand eddy flow Flash Smelting technique of the present invention can make breeze produce the effect of spiral-falling
Really, extending the track that breeze falls, the touch opportunity making breeze and reacting gas is more, thus improves
Breeze and the reacting gas chemical reaction efficiency in reaction tower space, improve breeze efficiency and
The utilization rate of reacting gas；On the other hand can optimize breeze dispersion effect and with the mixing of reacting gas
Effect, make breeze by size from reaction tower center to edge ordered arrangement, it is to avoid material is at flash
The accumulation in stove centre.
Eddy flow Flash Smelting technique of the present invention arranges many group air-flows on reaction tower sidewall and imports dress
Put, utilize multiply air-flow to inject at a high speed flash furnace reaction tower at an angle, form eddy flow, relative to
The eddy flow manufacture (as manufactured eddy flow at tower top by nozzle interior) in Flash Smelting Furnace field now, instead
Answer that the eddy flow scope (radius and length) produced in tower is bigger, the speed of eddy flow faster, eddy flow produces
Dispersion and mixed effect are more preferable, make breeze while spiral-falling, by size from reaction tower center
To edge ordered arrangement, eddy flow manufactures apparatus structure simply simultaneously, the most easily regulation；It is particularly suitable for needs
First gas making is re-introduced in reaction tower carrying out the technique of space smelting, such as the Flash Smelting in burning ore deposit, needs
Coal gas to be first passed through produces reducing atmosphere (CO+H2), it is re-introduced in stove and breeze generation reduction reaction,
The pyrometallurgical smelting tail gas containing reducing atmosphere of metallurgy, chemical industry can also be introduced directly into, accomplish change give up into
Precious, it is achieved the comprehensive reutilization of resource.
Accompanying drawing explanation
The accompanying drawing of the part constituting the present invention is used for providing a further understanding of the present invention, the present invention's
Schematic description and description is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.?
In accompanying drawing:
Fig. 1 is that the one group of air-flow used in the eddy flow Flash Smelting technique described in the embodiment of the present invention imports dress
The structural representation put；
Fig. 2 is that the one group of air-flow used in the eddy flow Flash Smelting technique described in the embodiment of the present invention imports dress
The another kind of structural representation put；
Fig. 3 is that the structure of the Flash Smelting Furnace used in the eddy flow Flash Smelting technique described in the embodiment of the present invention is shown
It is intended to.
Description of reference numerals:
1-reaction tower；2-charging gear；3-spray gun；4-uptake flue；5-molten bath；6-fuel nozzle.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the present invention and the spy in embodiment
Levy and can be mutually combined.
In describing the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ",
On " ", D score, "front", "rear", "left", "right", " vertically ", " level ",
" push up ", " end ", " interior ", the orientation of the instruction such as " outward " or position relationship be for based on shown in accompanying drawing
Orientation or position relationship, be for only for ease of the description present invention and simplifying and describe rather than instruction or dark
Show that device or the element of indication must have specific orientation, with specific azimuth configuration and operation, therefore
It is not considered as limiting the invention.Additionally, term " first ", " second " etc. are only used for describing
Purpose, and it is not intended that instruction or hint relative importance or implicit indicate indicated technical characteristic
Quantity.Thus, the feature defining " first ", " second " etc. can be expressed or impliedly wrap
Include one or more this feature.In describing the invention, except as otherwise noted, " multiple "
It is meant that two or more.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term
" install ", " being connected ", " connection " should be interpreted broadly, and connect, also for example, it may be fixing
Can be to removably connect, or be integrally connected；Can be to be mechanically connected, it is also possible to be electrical connection；Can
Being to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the connection of two element internals.
For the ordinary skill in the art, can understand that above-mentioned term is in the present invention by concrete condition
In concrete meaning.
Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
A kind of eddy flow Flash Smelting technique, comprises the steps:
1) raw material prepares: raw ore and flux are crushed and be dried；
2) eddy flow is manufactured: by the air-flow gatherer of setting on flash furnace reaction tower 1 sidewall to sudden strain of a muscle
Speed stove high speed sprays into reacting gas and brings heat into, forms eddy flow district, and make reaction in reaction tower 1
Tower 1 forms 1000 DEG C～the hot environment of 1450 DEG C；
3) material charging: the fine ore after broken and flux by being arranged on the feed at reaction tower 1 top
Device 2 adds in Flash Smelting Furnace；
4) eddy flow of breeze is smelted: after fine ore enters reaction tower 1, through eddy flow district, abundant by air-flow
Stirring, on the one hand makes breeze and air-flow sufficiently mix, utilizes the characteristic that mineral powder granular specific surface area is big,
By quickly heat transfer, mass transfer, breeze is while being quickly heated to 800 DEG C of high temperature above, and instead
Answering gas that chemical reaction quickly occurs, on the other hand, eddy flow makes fine ore spiral-falling, extends ore deposit
Powder, at the fall trajectory in reaction tower 1 space, makes reaction more abundant, meanwhile, also makes orderly the dividing of breeze energy
It is scattered to reaction tower everywhere.
If sulphide ore, step 2) in reacting gas be oxygen-containing gas: air, oxygen rich gas or technique
Oxygen.If oxide ore, step 2) in reacting gas be containing CO, H2With in hydrocarbon gas
One or more；Preferably, for metallurgy, chemical industry pyrometallurgical smelting tail gas etc. (such as blast furnace gas, Jiao
Producer gas, electric furnace method yellow phosphorus tail gas).
In the present embodiment, charging gear 2 is nozzle.In the present embodiment, reaction tower 1 is provided with fuel nozzle 6,
The setting of fuel nozzle 6 can be for providing heat in reaction tower 1.The gas sprayed into by air-flow gatherer
Stream forms high-speed rotational district, when the breeze that the nozzle from reaction tower 1 top adds falls into eddy flow district, is revolved
The impact of stream, powdery breeze spiral-falling, finally by orderly disperse in the reaction tower space of Flash Smelting Furnace,
On the one hand, making breeze by the size arrangement orderly to edge from reaction tower center, breeze has obtained very
Good dispersion also can be sufficiently mixed with reacting gas, promotes being rapidly performed by of chemical reaction, the opposing party
Face, the spiral-falling of breeze extends the track that breeze falls in Flash Smelting Furnace space, makes space suspend and smelts
Efficiency increase, reduce energy consumption；Reacted melt falls in the molten bath 5 below reaction tower 1,
Flux slag making in molten bath 5 that gangue content in breeze adds with charging gear 2, obtains after smelting
Form slag blanket and crude metal layer (or matte layer) after metal (or sulfonium) and slag precipitate and separate, during produce
Flue gas discharged by uptake flue 4.
According to one embodiment of present invention, step 1) in original ore powder is dried to aqueous less than 0.3%,
It is preferably aqueous less than 0.1%.To prevent from being formed moisture film around mineral powder granular, reacting gas is stoped to divide
Son is to the diffusion within solid or liquid particles.
According to one embodiment of present invention, step 1) in crushing raw ore is become breeze, be less than to particle diameter
The ratio of 200 mesh is more than 50%.It is preferably breeze particle diameter and is both less than 200 mesh.
According to one embodiment of present invention, step 1) in by the particle size distribution of breeze after crushing raw ore such as
Following table:
| Granularity/mesh | 10～20 | 20～100 | 100～200 | 200～300 | ＜ 300 |
| Number ratio (%) | 5 | 10 | 25 | 45 | 15 |
According to one embodiment of present invention, the jet velocity of air-flow is 50～200m/s.Be preferably 100～
150m/s, jet-impingement speed crosses and the speed of eddy flow can be caused slowly inadequate, and too fast meeting makes the tower wall of reaction tower
Impaired.The jet velocity of air-flow is preferably 110m/s, 120m/s, 130m/s, 140m/s.
According to one embodiment of present invention, described charging gear 2 is arranged on furnace roof.
According to one embodiment of present invention, described air-flow gatherer is many groups, and often group is arranged at difference
On horizontal plane, often organize and all include multiple spray gun 3.
According to one embodiment of present invention, the uniform setting of described spray gun 3 in gatherer is often organized.
According to one embodiment of present invention, often group gatherer includes 4 spray guns 3, and offside is put down two-by-two
Capable setting of staggering.
According to one embodiment of present invention, the described spray gun 3 in gatherer is often organized along identical rotation side
To, in the same plane along disalignment 3～20 °, preferably 8 °, 9 °, 10 °, 15 °,
18°。
According to one embodiment of present invention, the air-flow that air-flow gatherer imports is going back of coal gas generation
Originality gas or metallurgy, chemical industry pyrometallurgical smelting tail gas.Preferably blast furnace gas, coal gas of converter,
Coke-stove gas, electric furnace (mineral hot furnace) tail gas, rotary kiln exhaust gas, rotary hearth furnace tail gas etc..
Lateritic nickel ore is smelted by the eddy flow Flash Smelting technique utilizing the present invention to provide:
1) raw material prepares: lateritic nickel ore is dried and dispersion be water content below 0.3%, granularity is 200
The dry concentrate of 50% is accounted for below mesh.Sludging flux is quick lime, aqueous is less than 1%, granularity is less than 60 mesh
Account for 90%；
2) eddy flow is manufactured: six groups of air-flows are set on flash furnace reaction tower 1 sidewall from top to bottom and import dress
Putting, often group gatherer includes 4 spray guns 3, the most parallel setting of staggering of offside, as shown in Figure 1；
Near Flash Smelting Furnace, be provided with coal gasification apparatus, produce temperature about 1400 DEG C, pressure be 2MPa, containing 70%
(CO+H2) reducibility gas of effective reducing gases composition；By air-flow gatherer coal gasification apparatus
The reducibility gas produced sprays in flash furnace reaction tower with the speed of 130m/s, forms an eddy flow district；
3) material charging: lateritic nickel ore breeze and quick lime by being arranged on the spray at reaction tower 1 top
Mouth adds in Flash Smelting Furnace, because constantly having cold burden to add from reaction tower top, in maintaining reaction tower
The hot environment of about 1350 DEG C, is reaction tower 1 upper supplementary heat by heavy oil or natural gas combustion nozzle,
The material making entrance is heated rapidly intensification；
4) eddy flow is smelted: after lateritic nickel ore breeze enters reaction tower 1, through eddy flow district, filled by air-flow
Divide stirring, on the one hand make the specific surface area of the contact of breeze and air-flow increase, by quickly conducting heat, passing
Matter, while being quickly heated to, quickly there is chemical reaction with reaction gas flow in breeze, another
Aspect, eddy flow makes breeze fall at reaction tower 1 spatially spiral, extends breeze fall trajectory so that it is with
The touch opportunity of reducing atmosphere is more, improves NiO and the reduction of iron oxides in lateritic nickel ore breeze
Rate so that before eventually falling into molten bath, the NiO of 95% is reduced into Ni, and the iron oxides of 90% is gone back
Former one-tenth FeO, also part metals ferrum is reduced out, and meanwhile, lateritic nickel ore breeze is big due to particle diameter
Little difference, under the centrifugal action in eddy flow, on reaction tower horizontal cross-section, excentric position is the most not
With, so that what breeze can be orderly permeates into reaction tower everywhere.
In the description of this specification, reference term " embodiment ", " some embodiments ", " show
Example ", the description of " concrete example " or " some examples " etc. means to combine this embodiment or example is retouched
Specific features, structure, material or the feature stated is contained at least one embodiment or the example of the present invention
In.In this manual, the schematic representation to above-mentioned term be not necessarily referring to identical embodiment or
Example.And, the specific features of description, structure, material or feature can be at any one or many
Individual embodiment or example combine in an appropriate manner.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-mentioned enforcement
Example is exemplary, it is impossible to being interpreted as limitation of the present invention, those of ordinary skill in the art is at this
Above-described embodiment can be changed in bright scope, revise, replace and modification.
Claims (10)
1. an eddy flow Flash Smelting technique, it is characterised in that: comprise the steps:
1) raw material prepares: raw ore and flux are crushed and be dried；
2) manufacture eddy flow: by flash furnace reaction tower (1) sidewall arrange air-flow gatherer to
Flash Smelting Furnace high speed sprays into reacting gas and brings heat into, forms eddy flow district in reaction tower (1), and
Reaction tower (1) is made to form 1000 DEG C～the hot environment of 1450 DEG C；
3) material charging: the fine ore after broken and flux by be arranged on reaction tower (1) top to
Material device (2) adds in Flash Smelting Furnace；
4) eddy flow is smelted: after fine ore enters reaction tower (1), through eddy flow district, be sufficiently stirred for by air-flow,
On the one hand make breeze and air-flow sufficiently mix, utilize the characteristic that mineral powder granular specific surface area is big, by soon
The heat transfer of speed, mass transfer, breeze is while being quickly heated to 800 DEG C of high temperature above, with reacting gas
Chemical reaction quickly occurs, and on the other hand, eddy flow makes fine ore spiral-falling, extends breeze in reaction
The fall trajectory in tower (1) space, makes reaction more abundant, meanwhile, also makes breeze can permeate in order instead
Answer tower (1) everywhere.
Eddy flow Flash Smelting technique the most according to claim 1, it is characterised in that: by quality hundred
Mark meter, step 1) in raw ore is dried to aqueous less than 0.3%.
Eddy flow Flash Smelting technique the most according to claim 2, it is characterised in that: step 1) in
Crushing raw ore is become breeze, is more than 50% to particle diameter less than the ratio of 200 mesh.
4. the eddy flow Flash Smelting technique described in claim 3, it is characterised in that: step 1) in by former
After ore deposit is broken, the particle size distribution of breeze is as follows:
Granularity be the breeze ratio of 10～20 mesh be 5%；Granularity is that the breeze ratio of 20～100 mesh is
10%；Granularity be the breeze ratio of 100～200 mesh be 25%；Granularity is the breeze ratio of 200～300 mesh
Example is 45%；Granularity is 15% less than the breeze ratio of 300 mesh.
Eddy flow Flash Smelting technique the most according to claim 1, it is characterised in that: step 2) in
A kind of compensation process making the hot environment of reaction tower (1) formation 1000 DEG C～1450 DEG C is by arranging
Fuel nozzle (6) on described reaction tower (1) is that reaction tower (1) provides heat.
Eddy flow Flash Smelting technique the most according to claim 1, it is characterised in that: step 2) in
The jet velocity of air-flow is 50～200m/s.
Eddy flow Flash Smelting technique the most according to claim 1, it is characterised in that: described air-flow
Gatherer is many groups, and often group is arranged on the different level of reaction tower (1) sidewall, often organizes and all wraps
Include multiple spray gun (3).
Eddy flow Flash Smelting technique the most according to claim 7, it is characterised in that: often organize importing
Device includes 4 spray guns (3), the most parallel setting of staggering of offside.
Eddy flow Flash Smelting technique the most according to claim 7, it is characterised in that: often organize importing
Described spray gun (3) in device along identical direction of rotation, in the same plane along disalignment 3 °～
20°。
Eddy flow Flash Smelting technique the most according to claim 1, it is characterised in that: described air-flow
The air-flow that gatherer imports is reducibility gas or metallurgy, the chemical industry pyrometallurgical smelting of coal gas generation
Tail gas.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106521188A (en) * | 2016-11-02 | 2017-03-22 | 阳谷祥光铜业有限公司 | Rotational flow nickel smelting method and rotational flow nickel smelting device |
| CN106521181B (en) * | 2016-11-02 | 2019-05-21 | 阳谷祥光铜业有限公司 | It is a kind of to revolve floating lead smelting process and revolve floating lead smelting device |
| CN106521182B (en) * | 2016-11-02 | 2019-05-21 | 阳谷祥光铜业有限公司 | It is a kind of to revolve floating Copper making method and revolve floating Copper making device |
| EP3889275B1 (en) * | 2020-03-31 | 2023-11-22 | Qiu, Jiangbo | Skyflash multiphase flow metallurgical furnace |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323357A (en) * | 1998-10-14 | 2001-11-21 | 技术资源有限公司 | A process and an apparatus for producing metals and metal alloys |
| WO2013079762A1 (en) * | 2011-11-29 | 2013-06-06 | 55Outotec Oyj | Method for controlling the suspension in a suspension smelting furnace, a suspension smelting furnace, and a concentrate burner |
| WO2014015364A1 (en) * | 2012-07-25 | 2014-01-30 | Technological Resources Pty. Limited | Starting a smelting process |
| CN104018008A (en) * | 2014-06-25 | 2014-09-03 | 吉林吉恩镍业股份有限公司 | Method for producing nickel iron by laterite-nickel ore flash furnace reduction smelting |
| CN104451195A (en) * | 2014-11-21 | 2015-03-25 | 邱江波 | Flash smelting method for nickel laterite ores |
| CN104634100A (en) * | 2015-02-13 | 2015-05-20 | 阳谷祥光铜业有限公司 | Rotary-levitation melting method and nozzle and metallurgical apparatus |
| WO2015090623A1 (en) * | 2013-12-19 | 2015-06-25 | Tata Steel Nederland Technology B.V. | Method to operate a smelt cyclone |
-
2016
- 2016-04-28 CN CN201610280697.1A patent/CN105861834B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323357A (en) * | 1998-10-14 | 2001-11-21 | 技术资源有限公司 | A process and an apparatus for producing metals and metal alloys |
| WO2013079762A1 (en) * | 2011-11-29 | 2013-06-06 | 55Outotec Oyj | Method for controlling the suspension in a suspension smelting furnace, a suspension smelting furnace, and a concentrate burner |
| WO2014015364A1 (en) * | 2012-07-25 | 2014-01-30 | Technological Resources Pty. Limited | Starting a smelting process |
| WO2015090623A1 (en) * | 2013-12-19 | 2015-06-25 | Tata Steel Nederland Technology B.V. | Method to operate a smelt cyclone |
| CN104018008A (en) * | 2014-06-25 | 2014-09-03 | 吉林吉恩镍业股份有限公司 | Method for producing nickel iron by laterite-nickel ore flash furnace reduction smelting |
| CN104451195A (en) * | 2014-11-21 | 2015-03-25 | 邱江波 | Flash smelting method for nickel laterite ores |
| CN104634100A (en) * | 2015-02-13 | 2015-05-20 | 阳谷祥光铜业有限公司 | Rotary-levitation melting method and nozzle and metallurgical apparatus |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106521188A (en) * | 2016-11-02 | 2017-03-22 | 阳谷祥光铜业有限公司 | Rotational flow nickel smelting method and rotational flow nickel smelting device |
| CN106521181B (en) * | 2016-11-02 | 2019-05-21 | 阳谷祥光铜业有限公司 | It is a kind of to revolve floating lead smelting process and revolve floating lead smelting device |
| CN106521182B (en) * | 2016-11-02 | 2019-05-21 | 阳谷祥光铜业有限公司 | It is a kind of to revolve floating Copper making method and revolve floating Copper making device |
| US10570481B2 (en) | 2016-11-02 | 2020-02-25 | Yanggu Xiangguang Copper CO., Ltd | Copper rotation-suspension smelting process and copper rotation-suspension smelting device |
| EP3889275B1 (en) * | 2020-03-31 | 2023-11-22 | Qiu, Jiangbo | Skyflash multiphase flow metallurgical furnace |
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| CN105861834B (en) | 2018-01-12 |
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