CN207016812U - Coal, gas integral flash iron-smelting furnace - Google Patents
Coal, gas integral flash iron-smelting furnace Download PDFInfo
- Publication number
- CN207016812U CN207016812U CN201720779398.2U CN201720779398U CN207016812U CN 207016812 U CN207016812 U CN 207016812U CN 201720779398 U CN201720779398 U CN 201720779398U CN 207016812 U CN207016812 U CN 207016812U
- Authority
- CN
- China
- Prior art keywords
- furnace
- coal
- gas
- iron
- shaft
- 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.)
- Active
Links
Abstract
The utility model discloses coal, gas integral flash iron-smelting furnace.Coal, gas integral flash iron-smelting furnace includes：Shaft, reduction chamber, the open bottom end of shaft are defined in it, and the top of shaft has concentrate burner, material inlet and two top gases outlets；Furnace bosh, its upper and lower both ends open, its upper end are connected with the bottom of shaft, define coal gas chamber in it, multiple spray guns are provided with its side wall；Furnace bottom, its upper end is connected with furnace bosh, molten bath is limited in it, molten bath is divided into iron pelagic division, slag blanket area and coke layer area along lower upwardly direction, multiple oxygen lances are provided with the furnace bottom side wall of slag blanket area, coke layer area or the intersection in slag blanket area and coke layer area, furnace bottom bottom has molten iron outlet and slag-drip opening.By the way that coal gas unit is combined with flash iron-smelting furnace, top gas recycling uses the coal, gas integral flash iron-smelting furnace, it is possible to achieve the efficient utilization of resource and the energy, has significant environmental benefit and economic benefit.
Description
Technical field
Metallurgical technology field is the utility model is related to, specifically, the utility model is related to the refining of coal, gas integral flash
Iron furnace.
Background technology
Blast furnace ironmaking is to use coke as exothermic mixture and reducing agent, the reduction melting by reduction of iron ore into the pig iron
Journey.Sintering deposit and part massive iron ore and coke, flux from furnace roof according to continuously declining after certain rule cloth, high heat
Coal gas from the rising of cupola well bottom even, heat the furnace charge slowly declined in uphill process in stove, this coal gas in blast furnace
The energy in blast furnace is set to have obtained rationally sufficiently utilizing with furnace charge reverse movement.However, iron ore agglomeration and coking institute band
Supply falls short of demand in the whole world for the Heavy environmental pollution and scarce resource coking coal come, promotes ironmaking enterprise to attempt to break away to metallurgy
Burnt dependence, and then continually develop non-blast furnace ironmaking technology.Propose many non-blast furnace ironmaking flows in history, but these
Most of flow can not realize industrialization, even and if some realize industrialized flow and also could not enough withstand the inspection of practice
Test, be eliminated in evolution.Nowadays more ripe smelting reduction process is two-part COREX methods and FINEX methods.
COREX techniques are more harsh to raw material, demanded fuel, process energy consumption is higher, and fail to realize that full coal operation (still needs to
Want part of coke), molten iron production cost and the investment of unit production capacity are higher compared with blast furnace, the COREX dresses to have put into operation
Put more or less all there is coal/Jiao consume it is too high, need the problems such as high quality agglomerate.The melting and reducing gas making of FINEX techniques
Coal briquette used in stove still needs coking coal (20%), and baking coal (40%), equally can not also realizing full coal operation, (production is still
Need part of coke/nut coke), prereduction fine ore enters back into melting and reducing Gas-making Furnace after needing briquetting, and process procedure is more, maintenance
Greatly, subsequent technique connection difficulty is big, and process energy consumption is higher than traditional blast furnace ironmaking process.
Therefore, existing ironmaking means still have much room for improvement.
Utility model content
The utility model is intended to one of technical problem at least solving in correlation technique to a certain extent.Therefore, this reality
It is to propose coal, gas integral flash iron-smelting furnace with a new purpose.The coal, gas integral flash iron-smelting furnace pass through by
Coal gas unit is combined with flash iron-smelting furnace, and top gas recycling uses, it is possible to achieve the efficient utilization of resource and the energy, has
Significant environmental benefit and economic benefit.
In one side of the present utility model, the utility model proposes a kind of coal, gas integral flash iron-smelting furnace.Root
According to embodiment of the present utility model, the coal, gas integral flash iron-smelting furnace includes：
Shaft, reduction chamber, the open bottom end of the shaft are defined in the shaft, and the top of the shaft has essence
Ore deposit nozzle, material inlet and two top gas outlets, the concentrate burner are suitable to spray into fine coal, iron content into the reduction chamber
The mixture of fine ore, flux and oxygen, the material inlet are suitable to add lump coal and coke into the reduction chamber；
Furnace bosh, the upper and lower ends of the furnace bosh are opened wide, and the upper end of the furnace bosh is connected with the bottom of the shaft, described
Coal gas chamber is defined in furnace bosh, multiple spray guns are provided with the side wall of the furnace bosh, the spray gun is suitable to the coal system
Fine coal, water and furnace roof circulating gas/oxygen are sprayed in gas chamber；
Furnace bottom, the upper end of the furnace bottom are connected with the furnace bosh, limit molten bath in the furnace bottom, the molten bath along it is lower to
On direction be divided into iron pelagic division, slag blanket area and coke layer area, positioned at the slag blanket area, the coke layer area or the slag blanket
Multiple oxygen lances are provided with the furnace bottom side wall of the intersection in area and coke layer area, there is molten iron to go out for the furnace bottom bottom
Mouth and slag-drip opening.
According to the coal, gas integral flash iron-smelting furnace of the utility model embodiment by the way that coal gas unit and flash are refined
Iron furnace combines, and top gas recycling uses, it is possible to achieve the efficient utilization of resource and the energy, has significant environmental benefit and warp
Ji benefit.
Optional, the shaft is in reverse frustoconic, and the furnace bosh is in cylinder, and the top of the furnace bottom is in cylinder, institute
It is in reverse frustoconic to state furnace bottom bottom.
Optional, the multiple spray gun is evenly provided on the furnace bosh side wall, and each spray gun with it is described
The tangent line of furnace bosh is stretched into inside the furnace bosh in 0~90 ° of angle, and the spray gun is distributed on the bottom of the furnace bosh.
Optional, the coal, gas integral flash iron-smelting furnace further comprises：The top gas outlet is distributed in shaft
Top inverted round stage both sides, and be connected with the spray gun.Top gas can be used as coal gas recyclegas after purifying and dedusting, so as to
Further reduce the carbon emission of technique.
Optional, the coal, gas integral flash iron-smelting furnace further comprises：Two flues, described two flues are set
It is connected on the roof of the shaft and respectively with top gas outlet.
Additional aspect and advantage of the present utility model will be set forth in part in the description, partly by from following description
In become obvious, or by it is of the present utility model practice recognize.
Brief description of the drawings
Of the present utility model above-mentioned and/or additional aspect and advantage will in the description from combination accompanying drawings below to embodiment
Become obvious and be readily appreciated that, wherein：
Fig. 1 is the coal, gas integral flash iron-smelting furnace structural representation according to the utility model one embodiment；
Fig. 2 is the coal, gas integral flash iron-smelting furnace structural representation according to the utility model further embodiment；
Fig. 3 is the coal, gas integral flash iron-smelting furnace structural representation according to another embodiment of the utility model；
Fig. 4 is the coal, gas integral flash iron-smelting furnace structural representation according to another embodiment of the utility model；
Fig. 5 is the principle signal smelted iron using the coal, gas integral flash iron-smelting furnace of the utility model one embodiment
Figure；
Fig. 6 is the principle signal smelted iron using the coal, gas integral flash iron-smelting furnace of the utility model further embodiment
Figure.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that to the utility model
Limitation.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", etc.
The orientation or position relationship of instruction are based on orientation shown in the drawings or position relationship, are for only for ease of description the utility model
Described with simplifying, rather than the device or element of instruction or hint meaning there must be specific orientation, with specific orientation structure
Make and operate, therefore it is not intended that to limitation of the present utility model.
In description of the present utility model, " multiple " are meant that at least two, such as two, three etc., unless otherwise
It is clearly specific to limit.
In the utility model, unless otherwise clearly defined and limited, the term such as " connected ", " connection ", " fixation " should
It is interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can mechanically connect,
It can be electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, can be the company of two element internals
Logical or two elements interaction relationship, limited unless otherwise clear and definite.For the ordinary skill in the art, may be used
To understand concrete meaning of the above-mentioned term in the utility model as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature is "above" or "below" second feature
Can be that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, first is special
Sign second feature " on ", " top " and " above " can be 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 " can be with
Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height and be less than second feature.
In one side of the present utility model, the utility model proposes a kind of coal, gas integral flash iron-smelting furnace.Root
According to embodiment of the present utility model, with reference to figure 1~4, the coal, gas integral flash iron-smelting furnace includes：Shaft 100, furnace bosh 200
With furnace bottom 300.
According to embodiment of the present utility model, defined in shaft 100 and reduce chamber 110, the open bottom end of shaft 100,
The top of shaft 100 has concentrate burner 101, material inlet 102 and a two top gases outlet 103, concentrate burner 101 be suitable to
Reduce and fine coal, the mixture containing fine iron ore, flux and oxygen are sprayed into chamber 110, material inlet 102 is suitable to reduction chamber
Lump coal and coke are added in 100.Specifically, by by fine coal, the mixture containing fine iron ore, flux and oxygen and lump coal and Jiao
Charcoal from positioned at the concentrate burner on shaft top and material inlet supply to reduction chamber in, can make material in dropping process with
Caused rising high temperature reduction coal gas inversely contacts in furnace bosh coal gas chamber, the reduction chamber under red-hot and strongly reducing atmosphere
Interior, material forms " explosion type " dynamic conditions with great specific surface area, quickly complete heat transfer, mass transfer, gas-solid and gas-
Liquid reduction reaction, so as to realize that the high-efficiency cleaning of the energy utilizes.
According to specific embodiment of the utility model, the above-mentioned average grain diameter containing fine iron ore and fine coal, which is respectively less than, to be equal to
0.074mm, water content are respectively less than 1wt%, thus, it is possible to further improve the reduction efficiency containing fine iron ore, and further improve
The utilization rate of the energy.
According to specific embodiment of the utility model, the average grain diameter of above-mentioned lump coal and the coke is 5~15mm, aqueous
Amount is respectively less than 7wt%.Thus, it is possible to further improve the reduction efficiency containing fine iron ore, and further improve the utilization rate of the energy.
According to a specific embodiment of the present utility model, reducing gas concentration and temperature ladder can be formed by reducing in chamber
Degree, ferriferous oxide is progressively reduced to low price ferriferous oxide by autoreduction chamber top low temperature, low reducing gas concentration area downwards
(Fe2O3It is reduced to Fe3O4, Fe3O4It is reduced to FeO), and then the paramount reducing gas concentration in FeO whereabouts and temperature province are reduced to iron
Simple substance, the gangue content in raw material fully melt and complete slag making reaction, thus, in dropping process of the material in reduction chamber
It can fully be preheated, reduced, melted and be dripped, it is achieved thereby that the abundant of the energy rationally utilizes.
According to embodiment of the present utility model, the upper and lower ends of furnace bosh 200 are opened wide, and the upper end of furnace bosh 200 and shaft 100
Bottom be connected, coal gas chamber 210 is defined in furnace bosh 200, multiple spray guns 220, spray gun are provided with the side wall of furnace bosh 200
220 are suitable to spray fine coal, water and furnace roof circulating gas/oxygen into coal gas chamber 210.Specifically, can by spray gun to
Injection fine coal and water in coal gas chamber, and reaction produces reducing gas in coal gas chamber, forms strongly reducing atmosphere and height
Temperature, and then reducing gas is risen in the reduction chamber in shaft, to make fine coal, the mixing containing fine iron ore, flux and oxygen
Thing and lump coal and coke react under reducing atmosphere, finally give iron simple substance.
According to embodiment of the present utility model, the component of reducing gas, pressure and temperature are not particularly restricted, this area
Technical staff can be selected according to being actually needed, and according to specific embodiment of the utility model, one aoxidizes in reducing gas
Carbon content is not less than 85v%, and hydrogen content is not less than 10v%, and the air pressure of reducing gas is not less than 0.1MPa, the temperature of reducing gas
Degree is not less than 1500 DEG C, thus, it is possible to further improve the efficiency that ferriferous oxide is carried out to flash reduction.
With reference to figure 2, according to embodiment of the present utility model, the multiple spray gun can be evenly provided on furnace bosh side wall,
And the outer tangent line of each spray gun and furnace bosh is stretched into inside the furnace bosh in 0~90 ° of angle, spray gun is distributed on the bottom of furnace bosh.By
This, can further improve spray gun and feeding pulverized coal, water and furnace roof circulating gas/oxygen and be prepared into furnace bosh coal gas chamber
To the efficiency of reducing gas.
According to embodiment of the present utility model, the upper end of furnace bottom 300 is connected with furnace bosh 200, and molten bath is limited in furnace bottom 300
310, molten bath 310 is divided into iron pelagic division 311, slag blanket area 312 and coke layer area 313 along lower upwardly direction, positioned at slag blanket area
312nd, multiple oxygen are provided with the side wall of furnace bottom 300 of coke layer area 313 or the intersection in slag blanket area 312 and coke layer area 313
Gas spray gun (not shown in accompanying drawing), the bottom of furnace bottom 300 have molten iron outlet 301 and slag-drip opening 302.Specifically, by furnace roof material
The lump coal and coke that entrance adds can form lump coal/coke layer, the reduction for reducing to obtain through furnace body reduction chamber in molten bath
Reaction product can pass through lump coal/coke layer area in dropping process and carry out carburizing, and then fall into molten bath, meanwhile, by furnace roof
The slag making in molten bath of the flux of penetrating can efficiently separate liquid slag iron and desulfurization, adjustment hot metal composition are carried out to molten iron, most
Molten iron and slag are obtained eventually.On the other hand, oxygen can be supplied into coal gas chamber by multiple oxygen lances, to utilize
Oxygen reacts to obtain reducing gas with fine coal and water, and wherein oxygen can be the industrial oxygen that concentration is not less than 92v%.
According to specific embodiment of the utility model, the thickness of the lump coal/coke layer formed in molten bath can be 150~
300mm, thus, it is possible to effectively further to reduction reaction product and molten iron carburizing be carried out, so as to further reduce what is obtained
The fusion temperature of iron product.
With reference to figure 3, according to specific embodiment of the utility model, coal, gas integral flash iron-smelting furnace of the present utility model
It may further include：Top gas outlet 103 is connected with spray gun 220.Thus, it is possible to top gas is used as coal gas circulating air
Body, so as to further reduce the carbon emission of technique.Specifically, the CO obtained after the CO reducing iron oxides in reducing gas2Can
To react generation CO with fine coal, make CO2CO is converted into, after the top gas discharge containing CO after purifying and dedusting is handled, is obtained
Purification top gas can be returned through spray gun and recycled in reduction chamber, so as to further reduce the carbon emission of technique.
With reference to figure 4, coal, gas integral flash iron-smelting furnace of the present utility model can further include：Two flues
400。
According to embodiment of the present utility model, two flues 400 be arranged on the roof of shaft 100 and respectively with top gas
Outlet 103 is connected.Thus, body of heater can be discharged from flue by reducing caused top gas in chamber, subsequently at purified dedusting
Coal gas chamber is returned to by spray gun as coal gas recyclegas after reason.
According to embodiment of the present utility model, above-mentioned shaft can be in reverse frustoconic, and above-mentioned furnace bosh can be in cylinder, on
The top for stating furnace bottom can be in cylinder, and the bottom of above-mentioned furnace bottom can be in reverse frustoconic.
Thus, according to the coal, gas integral flash iron-smelting furnace of the utility model embodiment by spray gun to coal gas chamber
Interior injection fine coal and water, and reaction produces reducing gas in coal gas chamber, forms strongly reducing atmosphere, and then spray by concentrate
Mouth from the top of shaft to reduction chamber in spray into fine coal, the mixture containing fine iron ore, flux and oxygen, wherein containing fine iron ore,
Fine coal, oxygen inversely contact with the reducing gas risen and reduction reaction occur rapidly, obtain reduction reaction product, on the other hand
The lump coal and coke added by material inlet forms lump coal/coke layer in molten bath, and reduction reaction product passes through lump coal/coke
Layer carries out carburizing, obtains molten iron and slag.Coal, gas integral flash iron-smelting furnace of the present utility model is by by coal gas unit
Combined with flash iron-smelting furnace, it is possible to achieve the efficient utilization of resource and the energy, there is significant environmental benefit and economic benefit.
In order to facilitate understanding, refined below with reference to Fig. 5~6 pair using the coal, gas integral flash of the utility model embodiment
The method of iron furnace ironmaking is described in detail.According to embodiment of the present utility model, this method includes：
S100：Prepare reducing gas
In the step, fine coal and water are sprayed into coal gas chamber by spray gun, and react and produce in coal gas chamber
Reducing gas, strongly reducing atmosphere and high temperature are formed, and then reducing gas is risen in the reduction chamber in shaft, to make powder
Coal, the mixture containing fine iron ore, flux and oxygen and lump coal and coke react under reducing atmosphere, obtain iron simple substance.
On the other hand, oxygen can be supplied into coal gas chamber by the multiple oxygen lances being arranged in furnace bottom side wall, with facility
Reacted to obtain reducing gas with oxygen and fine coal and water, wherein oxygen can be the industrial oxygen that concentration is not less than 92v%.
According to embodiment of the present utility model, the component of reducing gas, pressure and temperature are not particularly restricted, this area
Technical staff can be selected according to being actually needed, and according to specific embodiment of the utility model, one aoxidizes in reducing gas
Carbon content is not less than 85v%, and hydrogen content is not less than 10v%, and the air pressure of reducing gas is not less than 0.1MPa, the temperature of reducing gas
Degree is not less than 1500 DEG C, thus, it is possible to further improve the efficiency that ferriferous oxide is carried out to flash reduction.
According to embodiment of the present utility model, the multiple spray gun can be evenly provided on furnace bosh side wall, and each spray
The outer tangent line of rifle and furnace bosh is stretched into inside the furnace bosh in 0~90 ° of angle, and spray gun is distributed on the bottom of furnace bosh.Thus, it is possible to enter
One step improves spray gun and feeding pulverized coal, water and furnace roof circulating gas/oxygen and reduction coal is prepared into furnace bosh coal gas chamber
The efficiency of gas.
S200：Flash is smelted iron
In the step, by concentrate burner from the top of shaft to reduction chamber in spray into fine coal, containing fine iron ore, flux and
The mixture of oxygen, inversely contacted with the reducing gas risen containing fine iron ore, fine coal, oxygen and reduction reaction occurs rapidly.Tool
Body, by by fine coal, the mixture containing fine iron ore, flux and oxygen and lump coal and coke from the concentrate positioned at shaft top
Nozzle and material inlet supply to reduction chamber in, can make material in dropping process with furnace bosh coal gas chamber caused by
Rise high temperature reduction coal gas inversely to contact, in the reduction chamber under red-hot and strongly reducing atmosphere, material is greatly to compare surface
Product forms " explosion type " dynamic conditions, heat transfer, mass transfer, gas-solid and solution-air reduction reaction is quickly completed, so as to realize energy
The high-efficiency cleaning in source utilizes.
According to specific embodiment of the utility model, the above-mentioned average grain diameter containing fine iron ore and fine coal, which is respectively less than, to be equal to
0.074mm, water content are respectively less than 1wt%, thus, it is possible to further improve the reduction efficiency containing fine iron ore, and further improve
The utilization rate of the energy.
According to specific embodiment of the utility model, the average grain diameter of above-mentioned lump coal and the coke is 5~15mm, aqueous
Amount is respectively less than 7wt%.Thus, it is possible to further improve the reduction efficiency containing fine iron ore, and further improve the utilization rate of the energy.
According to a specific embodiment of the present utility model, reducing gas concentration and temperature ladder can be formed by reducing in chamber
Degree, ferriferous oxide is progressively reduced to low price ferriferous oxide by autoreduction chamber top low temperature, low reducing gas concentration area downwards
(Fe2O3It is reduced to Fe3O4, Fe3O4It is reduced to FeO), and then the paramount reducing gas concentration in FeO whereabouts and temperature province are reduced to iron
Simple substance, the gangue content in raw material fully melt and complete slag making reaction, thus, in dropping process of the material in reduction chamber
It can fully be preheated, reduced, melted and be dripped, it is achieved thereby that the abundant of the energy rationally utilizes.
S300：Form lump coal/coke layer
In the step, the lump coal and coke that are added by material inlet form lump coal/coke layer in molten bath.
According to specific embodiment of the utility model, the thickness of the lump coal/coke layer formed in molten bath can be 150~
300mm, thus, it is possible to effectively further to reduction reaction product and molten iron carburizing be carried out, so as to further reduce what is obtained
The fusion temperature of iron product.
S400：Carburizing
In the step, reduction reaction product is carried out carburizing by lump coal/coke layer area, obtain molten iron and slag.Specifically
Ground, the lump coal and coke added by furnace roof material inlet can form lump coal/coke layer in molten bath, through furnace body reduction chamber also
The reduction reaction product that original obtains can pass through lump coal/coke layer area in dropping process and carry out carburizing, and then fall into molten bath,
Meanwhile the flux sprayed into by furnace roof slag making in molten bath can efficiently separate liquid slag iron and desulfurization, adjustment are carried out to molten iron
Hot metal composition, finally give molten iron and slag.
With reference to figure 6, the method for ironmaking of the present utility model can further include：
S500：Return to top gas
In the step, top gas is subjected to purifying and dedusting processing, to be purified top gas, and will purification top gas with
Fine coal and water, which are sprayed into coal gas chamber, to be used to produce high temperature reduction coal gas.Thus, it is possible to top gas is circulated as coal gas
Gas, so as to further reduce the carbon emission of technique.Specifically, the CO obtained after the CO reducing iron oxides in reducing gas2
Generation CO can be reacted with fine coal, makes CO2CO is converted into, after the top gas discharge containing CO after purifying and dedusting is handled, is obtained
Purification top gas can through spray gun return reduction chamber in recycle, so as to further reduce technique carbon emission.
Thus, the coal, gas integral flash of above-described embodiment is used according to the method for the ironmaking of the utility model embodiment
Iron-smelting furnace, fine coal and water are sprayed into coal gas chamber by spray gun, and reaction produces reducing gas, shape in coal gas chamber
Into strongly reducing atmosphere, so by concentrate burner from the top of shaft to reduction chamber in spray into fine coal, containing fine iron ore, flux and
The mixture of oxygen, wherein inversely being contacted with the reducing gas risen containing fine iron ore, fine coal, oxygen and reduction occurring rapidly instead
Should, reduction reaction product is obtained, the lump coal and coke on the other hand added by material inlet forms lump coal/coke in molten bath
Layer, reduction reaction product carry out carburizing by lump coal/coke layer, obtain molten iron and slag.Coal gas one used by this method
Body flash iron-smelting furnace is by the way that coal gas unit is combined with flash iron-smelting furnace, it is possible to achieve the efficient utilization of resource and the energy,
With significant environmental benefit and economic benefit.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present utility model.In this manual, to the schematic table of above-mentioned term
State and be necessarily directed to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be with
Combined in an appropriate manner in any one or more embodiments or example.In addition, in the case of not conflicting, this area
Technical staff the different embodiments or example and the feature of different embodiments or example described in this specification can be entered
Row combines and combination.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in the scope of the utility model
It is interior above-described embodiment to be changed, changed, is replaced and modification, it is accordingly to be regarded as this patent scope.
Claims (5)
- A kind of 1. coal, gas integral flash iron-smelting furnace, it is characterised in that including：Shaft, reduction chamber, the open bottom end of the shaft is defined in the shaft, the top of the shaft has concentrate spray Mouth, material inlet and two top gas outlets, the concentrate burner are suitable to spray into fine coal in chamber, containing iron powder to described reduce The mixture of ore deposit, flux and oxygen, the material inlet are suitable to add lump coal and coke into the reduction chamber；Furnace bosh, the upper and lower ends of the furnace bosh are opened wide, and the upper end of the furnace bosh is connected with the bottom of the shaft, the furnace bosh Coal gas chamber is inside defined, multiple spray guns are provided with the side wall of the furnace bosh, the spray gun is suitable to the coal gas chamber Indoor injection fine coal, water and furnace roof circulating gas/oxygen；Furnace bottom, the upper end of the furnace bottom are connected with the furnace bosh, limit molten bath in the furnace bottom, and the molten bath is along lower upward Direction is divided into iron pelagic division, slag blanket area and coke layer area, positioned at the slag blanket area, the coke layer area or the slag blanket area and Be provided with multiple oxygen lances in the furnace bottom side wall of the intersection in coke layer area, the furnace bottom bottom have molten iron outlet and Slag-drip opening.
- 2. coal, gas integral flash iron-smelting furnace according to claim 1, it is characterised in that the shaft is in inverted round stage Shape, the furnace bosh is in cylinder, and in cylinder, the furnace bottom bottom is in reverse frustoconic on the top of the furnace bottom.
- 3. coal, gas integral flash iron-smelting furnace according to claim 1, it is characterised in that the multiple spray gun is equably The furnace bosh side wall is arranged on, and the tangent line of each spray gun and the furnace bosh is stretched into the furnace bosh in 0~90 ° of angle Portion, the spray gun are distributed on the bottom of the furnace bosh.
- 4. coal, gas integral flash iron-smelting furnace according to claim 1, it is characterised in that further comprise：The top gas outlet is connected with the spray gun.
- 5. coal, gas integral flash iron-smelting furnace according to claim 1, it is characterised in that further comprise：Two cigarettes Road, described two flues are arranged on the roof of the shaft and are connected respectively with top gas outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720779398.2U CN207016812U (en) | 2017-06-29 | 2017-06-29 | Coal, gas integral flash iron-smelting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720779398.2U CN207016812U (en) | 2017-06-29 | 2017-06-29 | Coal, gas integral flash iron-smelting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207016812U true CN207016812U (en) | 2018-02-16 |
Family
ID=61483029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720779398.2U Active CN207016812U (en) | 2017-06-29 | 2017-06-29 | Coal, gas integral flash iron-smelting furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207016812U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109182633A (en) * | 2018-11-11 | 2019-01-11 | 重庆大学 | A kind of the decline pipe device and its control technique of high intensity flash iron-smelting furnace |
| CN109207664A (en) * | 2017-06-29 | 2019-01-15 | 北京闪铁科技有限公司 | Coal, gas integral flash iron-smelting furnace and its technique |
| CN111411185A (en) * | 2020-05-09 | 2020-07-14 | 刘虎才 | Equipment capable of reducing metal and reduction process |
-
2017
- 2017-06-29 CN CN201720779398.2U patent/CN207016812U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109207664A (en) * | 2017-06-29 | 2019-01-15 | 北京闪铁科技有限公司 | Coal, gas integral flash iron-smelting furnace and its technique |
| CN109182633A (en) * | 2018-11-11 | 2019-01-11 | 重庆大学 | A kind of the decline pipe device and its control technique of high intensity flash iron-smelting furnace |
| CN109182633B (en) * | 2018-11-11 | 2023-10-27 | 重庆大学 | Down pipe device of high-strength flash iron-making furnace and control process thereof |
| CN111411185A (en) * | 2020-05-09 | 2020-07-14 | 刘虎才 | Equipment capable of reducing metal and reduction process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101724726B (en) | Method and device for ironmaking by smelting | |
| CN110438277B (en) | Cyclone flash reduction direct steelmaking system and process | |
| CN112410494B (en) | Iron-making device and method capable of applying suspension melting reduction of fine-grained fine ores | |
| CN104673954A (en) | Direct-reduction ironmaking method and system for iron-containing mineral powder | |
| CN207016812U (en) | Coal, gas integral flash iron-smelting furnace | |
| CN105039627A (en) | Coal-based direct reduction-melt separation furnace smelting reduction iron-making process using external heating mode | |
| EP0541269A1 (en) | Method and apparatus for continuously producing steel or semi-steel | |
| CN101724727B (en) | Short-flow rotary hearth furnace continuous steelmaking method comprehensively utilizing resources | |
| CN217869018U (en) | Solid waste's of iron and steel plant processing apparatus | |
| CN201351168Y (en) | Iron-contained material continuous steelmaking device | |
| CN101956038B (en) | Process method and device for performing lower-carbon ironmaking and steelmaking through melting reduction of iron ore | |
| CN102409126B (en) | Integrated reduction ironmaking furnace and integrated reduction ironmaking process | |
| CN205133650U (en) | System for iron -smelting of gas making flash | |
| CN103627836A (en) | Steelmaking device and steelmaking method | |
| CN103352097A (en) | Reducing furnace, and technology for directly reducing coal-containing pellets through preheating outside coal base | |
| CN101956035B (en) | Iron-containing material slag bath smelting reduction steelmaking technical method and device | |
| CN109207664A (en) | Coal, gas integral flash iron-smelting furnace and its technique | |
| CN102618684B (en) | Continuous melting reduction iron-making device | |
| CN109385521B (en) | Production process for lead-antimony mixed ore oxygen-enriched molten pool low-temperature oxidation smelting | |
| CN115491453B (en) | PLCsmelt smelting reduction iron-making method and device | |
| CN102127610B (en) | Ironmaking equipment and process for direct smelting reduction of iron ore | |
| CN111020225A (en) | Novel furnace for simultaneous mixed smelting of antimony ore in same hearth through volatilization smelting and flash smelting and smelting method thereof | |
| CN102181776A (en) | Technique and device for producing high-grade nickel and stainless steel by reduction pelletization | |
| CN101560580B (en) | New iron-making and steel-making process by one-step method and equipment thereof | |
| CN212247151U (en) | Jet smelting electric heating reduction furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211227 Address after: Room 528, No. 67, Fucheng Road, Haidian District, Beijing 100142 Patentee after: Beijing Hengyi Zhengxing Investment Co.,Ltd. Address before: Room 1401, 14 / F, block B, Tiangong building, No.30 Xueyuan Road, Haidian District, Beijing 100083 Patentee before: BEIJING SHANTIE TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |