CN205710874U - Prepare the system of ferrosilicon - Google Patents
Prepare the system of ferrosilicon Download PDFInfo
- Publication number
- CN205710874U CN205710874U CN201620562707.6U CN201620562707U CN205710874U CN 205710874 U CN205710874 U CN 205710874U CN 201620562707 U CN201620562707 U CN 201620562707U CN 205710874 U CN205710874 U CN 205710874U
- Authority
- CN
- China
- Prior art keywords
- entrance
- fine powder
- outlet
- mixing
- iron oxide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Silicon Compounds (AREA)
Abstract
The utility model discloses the system preparing ferrosilicon, including: Silicon stone fine grinding device, there is Silicon stone entrance and the outlet of Silicon stone fine powder；Reduction coal fine grinding device, has reduction coal entrance and the outlet of reduction coal fine powder；Iron oxide material fine grinding device, has iron oxide material entrance and the outlet of iron oxide material fine powder；Mixing agglomeration device, there is Silicon stone fine powder entrance, reduction coal fine powder entrance, iron oxide material fine powder entrance, binding agent entrance, water inlet and the outlet of mixing wet block, Silicon stone fine powder entrance is connected with the outlet of Silicon stone fine powder, reduction coal fine powder entrance is connected with the outlet of reduction coal fine powder, and iron oxide material fine powder entrance is connected with the outlet of iron oxide material fine powder；Drying device, has and mixes wet block entrance and mixing dry block outlet, mix wet block entrance and be connected with mixing wet block outlet；Molten separating device, has the dry block entrance of mixing, ferrosilicon outlet and ferro-silicon slag outlet, and block dry with the mixing outlet of the dry block entrance of mixing is connected.This system substantially reduces the cost of material of silicon iron product.
Description
Technical field
This utility model belongs to metallurgical technology field, and specifically, this utility model relates to a kind of system preparing ferrosilicon.
Background technology
The ferroalloy that ferrosilicon is mainly made up of ferrum and silicon, owing to silicon and oxygen are easy to be combined into silicon dioxide, so silicon
Ferrum is usually used in during steel-making making deoxidizer, and oxidation reaction itself is again exothermic reaction, can improve again liquid steel temperature while deoxidation.With
Time, ferrosilicon is also used as alloying element additive, is widely used in low-alloy structural steel, spring steel, bearing steel and electrician's silicon
In steel, ferrosilicon produces at ferroalloy and in chemical industry, is commonly used for reducing agent.
The production of ferrosilicon is with natural silica as raw material, utilizes metallurgical Jiaozhuo reducing agent and exists with addition of a certain amount of ferric charge
In ore-smelting electric furnace smelt, use this technique produce ferrosilicon time in order to ensure the grain of the breathability of mineral hot furnace charge level, Silicon stone and char particle
Spending the biggest, Silicon stone granularity general 60～120mm, the granularity of char particle is generally 5～22mm, the bar that silicon dioxide exists at ferrum
It is 1623 DEG C that the reaction reduced by carbon on part starts theoretical reduction temperature, and actual ferrosilicon smelting temperature is all more than 1700 DEG C.Electricity
Power energy consumption in ferrosilicon smelting is maximum, accounts for the 60%～70% of totle drilling cost.Often produce one ton of ferrosilicon about power consumption 8000 degree with
On.Estimating with 75# ferrosilicon, production cost per ton is about more than 6000 yuan, and on market, the price of ferrosilicon only has 5200
Yuan/ton, most ferrosilicon manufacturing enterprises, all in loss end-of-life state, are badly in need of finding a kind of production ferrosilicon reducing cost
New technology.
Therefore, existing ferrosilicon smelting technology needs to excavate further the potentiality of its energy-saving and emission-reduction.
Utility model content
One of technical problem that this utility model is intended to solve in correlation technique the most to a certain extent.To this end, this reality
Being to propose a kind of system preparing ferrosilicon by a novel purpose, this system can substantially reduce the raw material of silicon iron product and become
This, thus meet the requirement of energy-saving and emission-reduction instantly.
At an aspect of the present utility model, the utility model proposes a kind of system preparing ferrosilicon.According to this practicality
Novel embodiment, this system includes:
Silicon stone fine grinding device, described Silicon stone fine grinding device has Silicon stone entrance and the outlet of Silicon stone fine powder；
Reduction coal fine grinding device, described reduction coal fine grinding device has reduction coal entrance and the outlet of reduction coal fine powder；
Iron oxide material fine grinding device, described iron oxide material fine grinding device has iron oxide material entrance and iron oxide material fine powder goes out
Mouthful；
Mixing agglomeration device, described mixing agglomeration device has Silicon stone fine powder entrance, reduction coal fine powder entrance, iron oxide material
Fine powder entrance, binding agent entrance, water inlet and the outlet of mixing wet block, described Silicon stone fine powder entrance and the outlet of described Silicon stone fine powder
Being connected, described reduction coal fine powder entrance is connected with the outlet of described reduction coal fine powder, described iron oxide material fine powder entrance and described oxygen
Change the outlet of iron charge fine powder to be connected；
Drying device, described drying device has the wet block entrance of mixing and mixing dry block outlet, wet piece of described mixing
Material entrance block wet with described mixing outlet is connected；
Molten separating device, described molten separating device has the dry block entrance of mixing, ferrosilicon outlet and ferro-silicon slag outlet, described mixing
Dry block entrance is done block outlet and is connected with described mixing.
Thus, use fine grinding device respectively to Silicon stone, reduction according to the system preparing ferrosilicon of this utility model embodiment
Coal and iron oxide material carry out fine grinding process, can significantly improve the contact area between raw material, thus reduce follow-up molten point temperature,
And obtained iron oxide material fine powder and reduction coal fine powder collocation Silicon stone fine powder can be smelted through agglomeration, drying process and molten point
Obtain qualified silicon iron product, compared with employing semi-coke in prior art and steel cuttings, the application uses reduction coal and ferrum oxide
Material can substantially reduce cost of material, thus meets the requirement of energy-saving and emission-reduction instantly.
Optional, described molten subpackage is set to combustion gas molten point of stove or mineral hot furnace.
Additional aspect of the present utility model and advantage will part be given in the following description, and part will be from explained below
In become obvious, or recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage are from combining general the accompanying drawings below description to embodiment
Become obvious and easy to understand, wherein:
Fig. 1 is the system structure schematic diagram preparing ferrosilicon according to one embodiment of this utility model.
Detailed description of the invention
Of the present utility model embodiment is described below in detail, and the example of described embodiment is shown in the drawings, the most ad initio
Represent same or similar element to same or similar label eventually or there is the element of same or like function.Below by ginseng
It is exemplary for examining the embodiment that accompanying drawing describes, it is intended to be used for explaining this utility model, and it is not intended that to this utility model
Restriction.
In description of the present utility model, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length ", " width
Degree ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", " outward ",
Orientation or the position relationship of the instruction such as " clockwise ", " counterclockwise ", " axially ", " radially ", " circumferential " are based on shown in the drawings
Orientation or position relationship, be for only for ease of and describe this utility model and simplify description rather than instruction or the dress of hint indication
Put or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this utility model
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 express or
Implicitly include at least one this feature.In description of the present utility model, " multiple " are meant that at least two, such as two
Individual, three etc., unless otherwise expressly limited specifically.
In this utility model, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " Gu
Fixed " etc. term should be interpreted broadly, connect for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be
It is mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two
The connection of element internal or the interaction relationship of two elements, unless otherwise clear and definite restriction.Common skill for this area
For art personnel, above-mentioned term concrete meaning in this utility model can be understood as the case may be.
In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score
Can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, first is special
Levy second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only
Represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " permissible
Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.
At an aspect of the present utility model, the utility model proposes a kind of system preparing ferrosilicon.According to this practicality
Novel embodiment, this system includes: Silicon stone fine grinding device 100, reduction coal fine grinding device 200, iron oxide material fine grinding device
300, mixing agglomeration device 400, drying device 500 and molten separating device 600.
According to embodiment of the present utility model, Silicon stone fine grinding device 100 has Silicon stone entrance 101 and the outlet of Silicon stone fine powder
102, and be suitable to Silicon stone is carried out fine grinding process, such that it is able to obtain Silicon stone fine powder.Inventor finds, by carrying out Silicon stone carefully
Mill processes, and can significantly improve the contact area of itself and other raw materials, thus on the one hand can significantly reduce ferrosilicon smelting reaction
Temperature, on the other hand can improve the speed of ferrosilicon reaction, shorten the response time, it is possible to play the effect of energy-saving and emission-reduction.
According to an embodiment of the present utility model, the particle diameter of Silicon stone fine powder is not particularly restricted, people in the art
Member can select according to actual needs, and according to specific embodiment of the utility model, Silicon stone fine powder particle diameter can be not higher than
0.15 millimeter.Thus, it is possible to significantly improve the effect of energy-saving and emission-reduction.
According to further embodiment of the present utility model, in Silicon stone, the concrete content of silicon dioxide is not particularly restricted,
Those skilled in the art can select according to actual needs, according to specific embodiment of the utility model, in Cab-O-sil two
The content of silicon oxide is not less than 90wt%.
According to embodiment of the present utility model, reduction coal fine grinding device 200 has reduction coal entrance 201 and reduction coal fine powder
Outlet 202, and be suitable to reduction coal is carried out fine grinding process, such that it is able to obtain reduction coal fine powder.Thus, by using reduction coal
Substitute semi-coke, cost of material can be significantly reduced, and by reduction coal is carried out fine grinding process, can significantly improve itself and its
The contact area of his raw material, thus it is possible not only to significantly reduce the temperature of ferrosilicon smelting reaction, and ferrosilicon reaction can be improved
Speed, shorten the response time, further function as the effect of energy-saving and emission-reduction.
According to an embodiment of the present utility model, the particle diameter of reduction coal fine powder is not particularly restricted, art technology
Personnel can select according to actual needs, and according to specific embodiment of the utility model, reduction coal fine powder particle diameter can not
Higher than 0.15 millimeter.Thus, it is possible to improve the effect of energy-saving and emission-reduction further.
According to embodiment of the present utility model, iron oxide material fine grinding device 300 has iron oxide material entrance 301 and ferrum oxide
Material fine powder outlet 302, and be suitable to iron oxide material is carried out fine grinding process, such that it is able to obtain iron oxide material fine powder.Thus, pass through
Use iron oxide material to substitute steel cuttings, cost of material can be significantly reduced, and by iron oxide material is carried out fine grinding process, permissible
Significantly improve the contact area of itself and other raw materials, thus be possible not only to significantly reduce the temperature of ferrosilicon smelting reaction, Er Qieke
To improve the speed of ferrosilicon reaction, shorten the response time, further function as the effect of energy-saving and emission-reduction.
Inventor finds, in order to improve current efficiency in existing preparation technology, it usually needs use the coke bigger than resistance,
Semi-coke and steel cuttings, cause raw material production relatively costly, is difficult to buying, and relatively low to ingredient requirement threshold in the application, uses
The reduction coal of low cost replaces coke or semi-coke, uses iron oxide material to replace steel cuttings, although the grade of full ferrum in ferrum oxide iron charge
Relatively low, but use the system of the application still can prepare qualified silicon iron product, thus widening the same of raw material sources
Time reduce silicon iron product production cost.
According to further embodiment of the present utility model, the granularity of iron oxide material fine powder is not particularly restricted, this area
Technical staff can select according to actual needs, according to specific embodiment of the utility model, the grain of iron oxide material fine powder
Degree not higher than 0.15 millimeter.Inventor is found by great many of experiments, the Silicon stone fine powder of the application particle size range, reduction coal fine powder and
Iron oxide material fine powder powder activity is higher, and material contact area each other is relatively big in ferrosilicon building-up process, such that it is able to aobvious
Write improve ferrosilicon combined coefficient, and this particle size range fine powder raw material good forming effect.
According to embodiment of the present utility model, mixing agglomeration device 400 has Silicon stone fine powder entrance 401, reduction coal fine powder
Entrance 402, iron oxide material fine powder entrance 403, binding agent entrance 404, water inlet 405 and mix wet block outlet 406, Silicon stone is thin
Powder entrance 401 is connected with Silicon stone fine powder outlet 102, and reduction coal fine powder entrance 402 is connected with reduction coal fine powder outlet 202, oxidation
Iron charge fine powder entrance 403 is connected with iron oxide material fine powder outlet 302, and is suitable to Silicon stone fine powder, reduction coal fine powder, iron oxide material
Fine powder, binding agent and water carry out mixing agglomeration, such that it is able to obtain mixing wet block.
According to an embodiment of the present utility model, Silicon stone fine powder, reduction coal fine powder, iron oxide material fine powder, binding agent and
The mixed proportion of water is not particularly restricted, those skilled in the art can according to actual production conditions and product quality require into
Row selects, and according to specific embodiment of the utility model, Cab-O-sil, reduction coal dust, iron oxide material powder, water, binding agent are by quality
Batch mixing is carried out than 100:50～60:20～25:10～20:3～10.Inventor is found by great many of experiments, enters according to this proportioning
Row batch mixing, raw material availability is high, and material forming is good, and the impurity of silicon iron product is few.According to specific embodiment of the utility model,
Binding agent can select starch solution, industrial waterglass, spent pulping liquor at least one.
According to further embodiment of the present utility model, the particular type that agglomeration processes is not particularly restricted, this area
Technical staff can select according to actual needs, according to specific embodiment of the utility model, and can be with selector disc pelletizing
Process, it is also possible to select machinery that roll-in ball is processed.
According to embodiment of the present utility model, drying device 500 has the wet block entrance of mixing 501 and the dry block of mixing goes out
Mouthfuls 502, mix wet block entrance 501 and mix wet block outlet 406 and be connected, and being suitable to block wet to mixing obtained above and enter
Row dried, such that it is able to obtain mixing dry block.Thus, it is possible to significantly improve the production efficiency of silicon iron product.
According to an embodiment of the present utility model, it is dried moisture in means and the dry block of gained mixing and is limited the most especially
System, those skilled in the art can select according to actual needs, according to specific embodiment of the utility model, can select
Moisture in drier or natural drying, and the dry block of gained mixing is less than 2wt%.Thus, can by dried
To reduce the moisture in block, prevent block in the molten subset of reduction efflorescence and affect normal smelting, thus improve also
The reaction efficiency of former molten separating device, therefore makes the moisture in block the lowest more good, concrete, inventor find to be dried block to
Requirement of strength can be met when moisture is less than less than 2% and can meet again reaction requirement.
According to embodiment of the present utility model, molten separating device 600 has the dry block entrance 601 of mixing, ferrosilicon outlet 602 and
Ferro-silicon slag outlet 603, the dry block entrance 601 of mixing block dry with mixing outlet 502 is connected, and is suitable to mixing obtained above
Dry block carries out reducing molten divisional processing, such that it is able to obtain silicon iron product and ferro-silicon slag.
According to an embodiment of the present utility model, the selection of molten separating device is not particularly restricted, people in the art
Member can select according to actual needs, according to specific embodiment of the utility model, can select with natural gas or coal system
Gas is that molten point of stove of main fuel is smelted, or uses mineral hot furnace to carry out molten divisional processing, the dry block of mixing in molten separating device first
Carry out reduction reaction, be reduced coal including the ferrum oxide in Iron concentrate and be reduced into fe, the silicon dioxide in Cab-O-sil
Being reduced coal and be reduced into elemental silicon, last gangue content separates with silicon iron product with the form of ferro-silicon slag.
According to further embodiment of the present utility model, the condition of molten divisional processing is not particularly restricted, art technology
Personnel can select according to actual needs, and according to specific embodiment of the utility model, molten divisional processing can be at 1650 DEG C
～at 1850 DEG C, carry out 0.5～1.5h.Inventor finds in great many of experiments, and the molten point condition of this scope i.e. can be saved energy and reduce the cost
Can meet again ferrosilicon production requirement, compared with current technology, ferrosilicon produces temperature and reduces at least 100 DEG C, levigate owing to have employed
Material and batch mixing agglomeration process, improve the contact conditions of storeroom, thus reduce the production temperature of ferrosilicon, serve energy-conservation
The effect of consumption reduction.
Thus, use fine grinding device respectively to Silicon stone, reduction according to the system preparing ferrosilicon of this utility model embodiment
Coal and iron oxide material carry out fine grinding process, can significantly improve the contact area between raw material, thus reduce follow-up molten point temperature,
And obtained iron oxide material fine powder and reduction coal fine powder collocation Silicon stone fine powder can be smelted through agglomeration, drying process and molten point
Obtain qualified silicon iron product, compared with employing semi-coke in prior art and steel cuttings, the application uses reduction coal and ferrum oxide
Material can substantially reduce cost of material, thus meets the requirement of energy-saving and emission-reduction instantly.
As it has been described above, can have selected from following advantage at least according to the system preparing ferrosilicon of this utility model embodiment
One of:
The system raw material preparing ferrosilicon according to this utility model embodiment uses and can expand with the powder such as ferrous material, coal
The production source of big ferrosilicon, compared with the semi-coke of current technology and steel cuttings, cost of material is greatly reduced, it is possible to reduce ferrosilicon
Production cost.
The system preparing ferrosilicon according to this utility model embodiment is compared with current technology, and ferrosilicon produces temperature and is reduced to
Few 100 DEG C, owing to have employed levigate material and batch mixing agglomeration process, improve the contact conditions of storeroom, thus reduce silicon
The production temperature of ferrum, serves energy-saving and cost-reducing effect.
The system energy consumption preparing ferrosilicon according to this utility model embodiment is lower, and this ferrosilicon smelting system is especially suitable for
Power tense and power-shortage area use.
Below with reference to specific embodiment, this utility model is described, it should be noted that these embodiments are only
Illustrative, and limit this utility model never in any form.
Embodiment 1
By raw materials for metallurgy Silicon stone containing SiO290.5%, bituminous coal contains fixed carbon 75.3%, and Iron concentrate iron content 65.4% is levigate extremely
Less than 0.15 millimeter, the Silicon stone fine powder that obtains, ground anthracite, Iron concentrate again with 5% starch solution, water is by weight ratio
100:55:20:5:10 carries out disk pelletizing at mixing agglomeration material, obtains the wet block of mixing of size 8～12mm, mixes wet block
Obtain mixing dry block after drying, then obtained mixing is done block supply to the molten point stove of combustion gas and carries out molten point of reduction, also
Former molten point temperature is 1650 DEG C, and the time is 1.5h, obtains silicon iron product Si 76.2%, Al 1.39%, C 0.12%, Mn
0.45%, P 0.035%, S 0.02%, Ca 0.32%, meets the standard of ferrosilicon trade mark FeSi75Al1.5-B.
Embodiment 2
By raw materials for metallurgy Silicon stone containing SiO293.3%, anthracite contains fixed carbon 82.3%, and Iron concentrate iron content 67.2% is levigate
To less than 0.15 millimeter, the Silicon stone fine powder that obtains, ground anthracite, Iron concentrate again with industrial waterglass solution, water is joined by weight
Ratio carries out batch mixing for 100:50:20:7:8, and compound is in high pressure roller machine upper pressing ball molding, and the mixing obtaining size 3～4cm is wet
Block, mixes wet block and obtains mixing dry block after drying, then obtained mixing is done block supply and carries out to mineral hot furnace
Molten point of reduction, the molten point temperature of reduction is 1750 DEG C, and the time is 1.0h, obtains silicon iron product Si 74.6%, Al 1.21%, Ca
0.62%, Mn 0.43%, P 0.035%, S 0.016%, C 0.18%, meets the mark of ferrosilicon trade mark FeSi75Al1.0-B
Accurate.
Embodiment 3
By raw materials for metallurgy Silicon stone containing SiO297.3%, anthracite contains fixed carbon 80.5%, and Iron concentrate iron content 68.7% is levigate
To less than 0.15 millimeter, the Silicon stone fine powder that obtains, ground anthracite, Iron concentrate again with pulp solution, water is by weight ratio
100:60:25:9:11 carries out batch mixing, and compound, in high pressure roller machine upper pressing ball molding, obtains wet piece of the mixing of size 3～4cm
Material, mixes wet block and obtains mixing dry block after drying, then obtained mixing is done block supply and enters to the molten point stove of combustion gas
Molten point of row reduction, the molten point temperature of reduction is 1850 DEG C, and the time is 0.5h, obtains silicon iron product Si 74.6%, Al 0.98%, Ca
0.72%, Mn 0.37%, P 0.034%, S 0.018%, C 0.08%, meets the mark of ferrosilicon trade mark FeSi75Al1.0-A
Accurate.
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 spy
Point is contained at least one embodiment of the present utility model or example.In this manual, the schematic table to above-mentioned term
State and be necessarily 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, this area
Technical staff the feature of the different embodiments described in this specification or example and different embodiment or example can be entered
Row combines and combination.
Although above it has been shown and described that embodiment of the present utility model, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as that those of ordinary skill in the art is in scope of the present utility model to restriction of the present utility model
In above-described embodiment can be changed, revise, replace and modification.
Claims (2)
1. the system preparing ferrosilicon, it is characterised in that including:
Silicon stone fine grinding device, described Silicon stone fine grinding device has Silicon stone entrance and the outlet of Silicon stone fine powder；
Reduction coal fine grinding device, described reduction coal fine grinding device has reduction coal entrance and the outlet of reduction coal fine powder；
Iron oxide material fine grinding device, described iron oxide material fine grinding device has iron oxide material entrance and the outlet of iron oxide material fine powder；
Mixing agglomeration device, described mixing agglomeration device has Silicon stone fine powder entrance, reduction coal fine powder entrance, iron oxide material fine powder
Entrance, binding agent entrance, water inlet and the outlet of mixing wet block, described Silicon stone fine powder entrance and described Silicon stone fine powder outlet phase
Even, described reduction coal fine powder entrance is connected with the outlet of described reduction coal fine powder, described iron oxide material fine powder entrance and described oxidation
The outlet of iron charge fine powder is connected；
Drying device, described drying device has the wet block entrance of mixing and mixing dry block outlet, and the wet block of described mixing enters
Mouth block wet with described mixing outlet is connected；
Molten separating device, described molten separating device has the dry block entrance of mixing, ferrosilicon outlet and ferro-silicon slag outlet, the dry block of described mixing
Material entrance is done block outlet and is connected with described mixing.
System the most according to claim 1, it is characterised in that described molten subpackage is set to combustion gas molten point of stove or mineral hot furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620562707.6U CN205710874U (en) | 2016-06-12 | 2016-06-12 | Prepare the system of ferrosilicon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620562707.6U CN205710874U (en) | 2016-06-12 | 2016-06-12 | Prepare the system of ferrosilicon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205710874U true CN205710874U (en) | 2016-11-23 |
Family
ID=57302722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620562707.6U Expired - Fee Related CN205710874U (en) | 2016-06-12 | 2016-06-12 | Prepare the system of ferrosilicon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205710874U (en) |
-
2016
- 2016-06-12 CN CN201620562707.6U patent/CN205710874U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103361453B (en) | Blast-furnace smelting method for vanadium-titanium magnetite | |
| CN102181610B (en) | Composite slagging agent for making semisteel, and preparation method and using method thereof | |
| CN102127636B (en) | Method for preparing low-SiO2 high-performance sinter ore | |
| CN102051421A (en) | Blast furnace burden and blast furnace iron-making method adopting same | |
| CN101476001B (en) | Method for smelting medium titanium slag by blast furnace | |
| CN102242251A (en) | Alkaline V-Ti pellet and preparation method thereof | |
| CN103160643A (en) | Carburant, preparation method of carburant and smelting method of molten iron containing vanadium | |
| CN109487074A (en) | A kind of fluxed pellets mine and preparation method thereof with addition of the production of fluorine-containing magnetite concentrate | |
| CN101736148A (en) | Sintering-pelletizing additive, preparation method and application thereof | |
| CN101638698B (en) | Method for smelting vanadium-titanium magnetite by blast furnace | |
| CN103014212A (en) | Technical method for producing metal iron powder by using carbon-containing high-phosphorus oolitic hematite pellet | |
| CN109652643A (en) | High quality sinter and preparation method thereof for COREX ironmaking technique of fusion and reduction | |
| CN103103310A (en) | Vanadium extraction cold pressing block and preparation method and applications thereof and vanadium extraction method | |
| Han et al. | Recent advances in sintering with high proportions of magnetite concentrates | |
| CN105886765A (en) | Method for producing ferrosilicon | |
| CN103484752A (en) | Silicon-vanadium-iron alloy and production method thereof | |
| Wang et al. | Effect and function mechanism of sinter basicity on softening-melting behaviors of mixed burden made from chromium-bearing vanadium-titanium magnetite | |
| CN117025991B (en) | Energy-saving high-carbon ferrochrome smelting process | |
| CN205710874U (en) | Prepare the system of ferrosilicon | |
| CN101921909B (en) | Method for controlling ferrous oxide content in sintering ore | |
| CN101240360A (en) | Oxide briquetting used for steelmaking alloy element and preparation method thereof | |
| CN103146914B (en) | Cold-pressed high-strength fluorite pellet binder and use method thereof | |
| CN101270450B (en) | Ferro-nickel alloy and smelting method | |
| CN103173677B (en) | Hypoeutectic energy-saving vanadium and titanium containing cast pig iron with low silicon-carbon ratio | |
| CN103031409B (en) | Novel process of steelmaking deoxidization by utilizing precipitator dust of refining furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20190102 Granted publication date: 20161123 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20220102 Granted publication date: 20161123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161123 Termination date: 20190612 |