CN105838837A - Reduction smelting system and reduction smelting method for vanadium-titanium magnetite ore or ilmenite - Google Patents
Reduction smelting system and reduction smelting method for vanadium-titanium magnetite ore or ilmenite Download PDFInfo
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- CN105838837A CN105838837A CN201610346389.4A CN201610346389A CN105838837A CN 105838837 A CN105838837 A CN 105838837A CN 201610346389 A CN201610346389 A CN 201610346389A CN 105838837 A CN105838837 A CN 105838837A
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- CN
- China
- Prior art keywords
- ilmenite
- magnetite
- rotary kiln
- vanadium titano
- vanadium
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B11/00—Making pig-iron other than in blast furnaces
- C21B11/10—Making pig-iron other than in blast furnaces in electric furnaces
Abstract
The invention discloses a reduction smelting system and reduction smelting method for vanadium-titanium magnetite ore or ilmenite. The reduction smelting system for the vanadium-titanium magnetite ore or the ilmenite comprises a rotary kiln used for pre-reducing magnetically separated vanadium-titanium magnetite ore or ilmenite, a burning nozzle used for jetting flames into a kiln cavity of the rotary kiln, an electric furnace which is provided with a second feeding port, an iron discharging port, a slag discharging port and a smoke outlet, and a hot material conveying device, wherein the rotary kiln is provided with a first feeding port, a roasted product outlet and a burning nozzle installing port; the burning nozzle is arranged at the position of the burning nozzle installing port; and one end of the hot material conveying device is connected with the roasted product outlet, and the other end of the hot material conveying device is connected with the second feeding port. The reduction smelting system for the vanadium-titanium magnetite ore or the ilmenite has the beneficial effects of being high in treatment capacity, low in running cost and energy consumption and the like.
Description
Technical field
The present invention relates to field of metallurgy, in particular to vanadium titano-magnetite or ilmenite reduction smelting system, further relate to vanadium
Titanomagnetite or ilmenite reduction method of smelting.
Background technology
In the prior art, utilize blast furnace or rotary hearth furnace that vanadium titano-magnetite or ilmenite are carried out reduction melting.But, blast furnace
There is the defect that operating cost is high, cause deficiency in economic performance.And the volume of rotary hearth furnace is limited, it is impossible to realize fairly large metaplasia
Produce.
Summary of the invention
It is contemplated that one of technical problem solved the most to a certain extent in correlation technique.To this end, the present invention proposes one
Plant vanadium titano-magnetite or the ilmenite reduction smelting system with the advantage that disposal ability is big, operating cost is low, energy consumption is low.
The present invention also proposes a kind of vanadium titano-magnetite utilizing described vanadium titano-magnetite or ilmenite reduction smelting system to implement or titanium
Iron ore reduction method of smelting.
Vanadium titano-magnetite or the ilmenite reduction smelting system of embodiment includes according to a first aspect of the present invention: for prereduction warp
The vanadium titano-magnetite of magnetic separation or the rotary kiln of ilmenite, described rotary kiln has the first charging aperture, calcining outlet and burner and installs
Mouthful；For the burner to the kiln intracavity jet flames of described rotary kiln, described burner is located at described burner installing port；Electric furnace,
Described electric furnace has the second charging aperture, puts ferrum mouth, slag tap and exhanst gas outlet；With hot material conveying device, described heat material conveying
One end of device is connected with the outlet of described calcining, and the other end of described hot material conveying device is connected with described second charging aperture.
Vanadium titano-magnetite according to embodiments of the present invention or ilmenite reduction smelting system have that disposal ability is big, operating cost is low,
The advantage that energy consumption is low.
It addition, vanadium titano-magnetite according to the above embodiment of the present invention or ilmenite reduction smelting system can also have the most attached
The technical characteristic added:
According to one embodiment of present invention, the outlet of described calcining is positioned at the top of described second charging aperture, described heat material conveying
Device is arranged obliquely.
According to one embodiment of present invention, described burner has coal feed point, air inlet and flame export, described flame export
Central axis and described rotary kiln centerline axis parallel arrange.
The utilization of embodiment is described according to a first aspect of the present invention according to a second aspect of the present invention vanadium titano-magnetite or ilmenite are also
Vanadium titano-magnetite or ilmenite reduction method of smelting that former smelting system is implemented comprise the following steps:
Vanadium titano-magnetite after magnetic separation or ilmenite are joined described returning from described first charging aperture by a certain percentage with reducing agent
In rotary kiln, and utilize described burner jet flames in described rotary kiln, in order to the vanadium titano-magnetite in described rotary kiln or
Ilmenite carries out prereduction and obtains calcining；
Utilize described hot material conveying device by described calcine trans-portation to described electric furnace, and utilize described electric furnace to carry out further also
Former, vanadium-bearing hot metal or the molten iron of generation are released from described ferrum mouth of putting, and the slag containing titanium dioxide of generation is from described slag tap
Releasing, the flue gas containing carbon monoxide of generation is released from described exhanst gas outlet.
According to one embodiment of present invention, described burner has coal feed point, air inlet and flame export, by described enter coal
Mouth adds coal in described burner, adds oxygen-containing gas by described air inlet, and gone out by described flame in described burner
Mouth spray penetration in described rotary kiln is the flame of 30 meters-40 meters.
According to one embodiment of present invention, described reducing agent is coal.
Accompanying drawing explanation
Fig. 1 is vanadium titano-magnetite according to embodiments of the present invention or the structural representation of ilmenite reduction smelting system.
Reference:
Vanadium titano-magnetite or ilmenite reduction smelting system 10, rotary kiln 101, electric furnace 102, hot material conveying device 103
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings.Below with reference to accompanying drawing
The embodiment described is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings vanadium titano-magnetite according to embodiments of the present invention or ilmenite reduction smelting system 10 are described.Such as Fig. 1
Shown in, vanadium titano-magnetite or ilmenite reduction smelting system 10 according to embodiments of the present invention include for prereduction through magnetic separation
The rotary kiln 101 of vanadium titano-magnetite or ilmenite, for the burner to the kiln intracavity jet flames of rotary kiln 101 (in figure not
Illustrate), electric furnace 102 and hot material conveying device 103.
Rotary kiln 101 has the first charging aperture, calcining outlet and burner installing port, and this burner is located at this burner installing port.
Electric furnace 102 has the second charging aperture, puts ferrum mouth, slag tap and exhanst gas outlet.One end of hot material conveying device 103 and this roasting
Sand outlet is connected, and the other end of hot material conveying device 103 is connected with this second charging aperture.
It is briefly described vanadium titano-magnetite according to embodiments of the present invention or ilmenite reduction smelting system 10 below with reference to Fig. 1
Work process.
First, the vanadium titano-magnetite after magnetic separation or ilmenite are joined revolution from the first charging aperture by a certain percentage with reducing agent
In kiln 101, and utilize burner jet flames in rotary kiln 101, in order to the vanadium titano-magnetite in rotary kiln 101 or titanium
Iron mine carries out prereduction and obtains calcining；
Utilize hot material conveying device 103 by calcine trans-portation to electric furnace 102, and utilize electric furnace 102 to reduce further.
The vanadium-bearing hot metal produced or molten iron are released from putting ferrum mouth, and the slag containing titanium dioxide of generation is released from slag tap, generation
Flue gas containing carbon monoxide is released from exhanst gas outlet.
Vanadium titano-magnetite according to embodiments of the present invention or ilmenite reduction smelting system 10 are by utilizing rotary kiln 101 to magnetic separation
After vanadium titano-magnetite or ilmenite carry out prereduction, such that it is able to utilize rotary kiln 101 pre-reduction treatment Ore energy fully
Power is big, it is easily controllable to reduce, equipment can realize features such as maximizing, equipment operating is reliable.
Vanadium titano-magnetite according to embodiments of the present invention or ilmenite reduction smelting system 10 are by utilizing electric furnace 102 to enter calcining
Row drastic reduction, such that it is able to utilize fully, electric furnace 102 thermal efficiency height, good leak tightness, equipment enlarging power is big, place
Reason ability greatly, easily realize scale, be prone to mate with rotary kiln 101, service life of equipment length, operating rate are high, operation side
Just, molten point of metal recovery rate high.
The calcining " hot charging heat fortune " being additionally, since rotary kiln 101 output adds electric furnace 102, greatly reduces unit calcining
Power consumption, reduces electric energy.
Therefore, vanadium titano-magnetite according to embodiments of the present invention or ilmenite reduction smelting system 10 have that disposal ability is big, fortune
Row low cost, low power consumption and other advantages.
As it is shown in figure 1, vanadium titano-magnetite or ilmenite reduction smelting system 10 according to embodiments of the present invention include going back for pre-
The former vanadium titano-magnetite through magnetic separation or the rotary kiln 101 of ilmenite, for the burning to the kiln intracavity jet flames of rotary kiln 101
Mouth (not shown), electric furnace 102 and hot material conveying device 103.
Rotary kiln 101 has the first charging aperture, calcining outlet and burner installing port.Vanadium titano-magnetite after magnetic separation or ilmenite
And reducing agent joins in rotary kiln 101 from this first charging aperture by a certain percentage.Wherein, the vanadium titano-magnetite after magnetic separation
Or after ilmenite can first be mixed homogeneously with reducing agent, then join in rotary kiln 101 from this first charging aperture.Additionally, magnetic
Vanadium titano-magnetite or ilmenite after choosing can also directly join in rotary kiln 101 from this first charging aperture with reducing agent.
Specifically, this reducing agent can be coal.
This burner is located at this burner installing port.In one embodiment of the invention, burner have coal feed point, air inlet and
Flame export.Wherein, in this burner, add coal by this coal feed point, add oxygenous in this burner by this air inlet
Body, and by this flame export jet flames in rotary kiln 101.
Advantageously, a length of 30 meters-40 meters of the flame of this burner injection.
In an example of the present invention, the central axis of the flame export of this burner and the centerline axis parallel of rotary kiln 101
Arrange.Preferably, the central axis of flame export and the central axes of rotary kiln 101.Thus can make rotary kiln 101
Structure more reasonable.
Electric furnace 102 has the second charging aperture, puts ferrum mouth, slag tap and exhanst gas outlet.One end of hot material conveying device 103 with
The outlet of this calcining is connected, and the other end of hot material conveying device 103 is connected with this second charging aperture.Thus originate from rotary kiln 101
High temperature calcining joined in electric furnace 102 by hot material conveying device 103.
In some examples of the present invention, the outlet of this calcining is positioned at the top of this second charging aperture, and hot material conveying device 103 inclines
Tiltedly arrange.The gravity of this calcining self thus can be utilized to carry this calcining.
In electric furnace 102, the oxide of the metal such as ferrum, vanadium is reduced further.Meanwhile, in the molten bath of electric furnace 102,
The ferrum of high-temperature fusion, vanadium metal realize levels under gravity and separate with slag.Wherein, the molten iron of lower floor or vanadium-bearing hot metal
Putting ferrum mouth from this to release, and transport rectification systems to, the slag containing titanium dioxide on upper strata is released from this slag tap, as titanium
White lead produces or carries the raw material of titanium, and the flue gas containing carbon monoxide is released from this exhanst gas outlet, and is transported to electricity generation system generating.
In describing the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ",
" outward ", " clockwise ", " counterclockwise ", " axially ", " radially ", " circumferential " etc. instruction orientation or position relationship be based on
Orientation shown in the drawings or position relationship, be for only for ease of the description present invention and simplify description rather than instruction or hint institute
The device that refers to or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this
Bright restriction.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed
Or implicitly include at least one this feature.In describing the invention, " multiple " are meant that at least two, such as two
Individual, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " fixing "
Should be interpreted broadly Deng term, connect for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be
Be mechanically connected, it is also possible to be electrical connection or each other can communication；Can be to be joined directly together, it is also possible to by the indirect phase of intermediary
Even, can be connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction.For
For those of ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can
Being that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, the
One feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or
Oblique upper, or it is merely representative of fisrt feature level height higher than second feature.Fisrt feature second feature " under ",
" lower section " and " below " can be fisrt feature immediately below second feature or obliquely downward, or it is special to be merely representative of first
Levy level height less than second feature.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or
Feature is contained at least one embodiment or the example of the present invention.In this manual, the schematic representation to above-mentioned term
Necessarily it is directed to identical embodiment or example.And, the specific features of description, structure, material or feature are permissible
One or more embodiment in office or example combine in an appropriate manner.Additionally, in the case of the most conflicting, ability
The feature of the different embodiments described in this specification or example and different embodiment or example can be entered by the technical staff in territory
Row combines and combination.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment is exemplary,
Being not considered as limiting the invention, those of ordinary skill in the art within the scope of the invention can be to above-described embodiment
It is changed, revises, replaces and modification.
Claims (6)
1. a vanadium titano-magnetite or ilmenite reduction smelting system, it is characterised in that including:
For the prereduction vanadium titano-magnetite through magnetic separation or the rotary kiln of ilmenite, described rotary kiln has the first charging aperture, roasting
Sand outlet and burner installing port；
For the burner to the kiln intracavity jet flames of described rotary kiln, described burner is located at described burner installing port；
Electric furnace, described electric furnace has the second charging aperture, puts ferrum mouth, slag tap and exhanst gas outlet；
Hot material conveying device, one end of described hot material conveying device is connected with the outlet of described calcining, described hot material conveying device
The other end is connected with described second charging aperture.
Vanadium titano-magnetite the most according to claim 1 or ilmenite reduction smelting system, it is characterised in that described calcining
Outlet is positioned at the top of described second charging aperture, and described hot material conveying device is arranged obliquely.
Vanadium titano-magnetite the most according to claim 1 or ilmenite reduction smelting system, it is characterised in that described burner
There is coal feed point, air inlet and flame export, the central axis of described flame export and the centerline axis parallel of described rotary kiln
Arrange.
4. one kind utilizes according to the vanadium titano-magnetite according to any one of claim 1-3 or the enforcement of ilmenite reduction smelting system
Vanadium titano-magnetite or ilmenite reduction method of smelting, it is characterised in that comprise the following steps:
Vanadium titano-magnetite after magnetic separation or ilmenite are joined described returning from described first charging aperture by a certain percentage with reducing agent
In rotary kiln, and utilize described burner jet flames in described rotary kiln, in order to the vanadium titano-magnetite in described rotary kiln or
Ilmenite carries out prereduction and obtains calcining；
Utilize described hot material conveying device by described calcine trans-portation to described electric furnace, and utilize described electric furnace to carry out further also
Former, vanadium-bearing hot metal or the molten iron of generation are released from described ferrum mouth of putting, and the slag containing titanium dioxide of generation is from described slag tap
Releasing, the flue gas containing carbon monoxide of generation is released from described exhanst gas outlet.
Vanadium titano-magnetite the most according to claim 4 or ilmenite reduction method of smelting, it is characterised in that described burner
There is coal feed point, air inlet and flame export, in described burner, add coal by described coal feed point, by described air inlet
In described burner, add oxygen-containing gas, and be 30 meters-40 meters by described flame export spray penetration in described rotary kiln
Flame.
Vanadium titano-magnetite the most according to claim 4 or ilmenite reduction method of smelting, it is characterised in that described reduction
Agent is coal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610346389.4A CN105838837B (en) | 2016-05-23 | 2016-05-23 | Vanadium titano-magnetite or ilmenite reduction smelting system and method for smelting reduction of Ni |
| PCT/CN2017/077358 WO2017202119A1 (en) | 2016-05-23 | 2017-03-20 | Reduction smelting system and reduction smelting method for vanadium-titanium magnetite ore or ilmenite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610346389.4A CN105838837B (en) | 2016-05-23 | 2016-05-23 | Vanadium titano-magnetite or ilmenite reduction smelting system and method for smelting reduction of Ni |
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| Publication Number | Publication Date |
|---|---|
| CN105838837A true CN105838837A (en) | 2016-08-10 |
| CN105838837B CN105838837B (en) | 2018-04-17 |
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| CN201610346389.4A Active CN105838837B (en) | 2016-05-23 | 2016-05-23 | Vanadium titano-magnetite or ilmenite reduction smelting system and method for smelting reduction of Ni |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017202119A1 (en) * | 2016-05-23 | 2017-11-30 | 中国恩菲工程技术有限公司 | Reduction smelting system and reduction smelting method for vanadium-titanium magnetite ore or ilmenite |
| CN107815537A (en) * | 2017-12-07 | 2018-03-20 | 中国恩菲工程技术有限公司 | Vanadium titano-magnetite processing unit |
| 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 |
| CN108411131A (en) * | 2018-03-28 | 2018-08-17 | 中冶东方工程技术有限公司 | Manganese-silicon production system and manganese-silicon production technology |
| CN110066899A (en) * | 2019-04-15 | 2019-07-30 | 东北大学 | A kind of method of drastic reduction short-flow melting comprehensive utilization of V-Ti magnetite |
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| CN205635666U (en) * | 2016-05-23 | 2016-10-12 | 中国恩菲工程技术有限公司 | Vanadium titano -magnetite or ilmenite reducing smelting system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2017202119A1 (en) * | 2016-05-23 | 2017-11-30 | 中国恩菲工程技术有限公司 | Reduction smelting system and reduction smelting method for vanadium-titanium magnetite ore or ilmenite |
| CN107815537A (en) * | 2017-12-07 | 2018-03-20 | 中国恩菲工程技术有限公司 | Vanadium titano-magnetite processing unit |
| 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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| CN110066899A (en) * | 2019-04-15 | 2019-07-30 | 东北大学 | A kind of method of drastic reduction short-flow melting comprehensive utilization of V-Ti magnetite |
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| CN105838837B (en) | 2018-04-17 |
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