CN101563474B - Apparatus for manufacturing compacted irons of reduced materials comprising fine direct reduced irons and apparatus for manufacturing molten irons provided with the same - Google Patents
Apparatus for manufacturing compacted irons of reduced materials comprising fine direct reduced irons and apparatus for manufacturing molten irons provided with the same Download PDFInfo
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- CN101563474B CN101563474B CN2007800474237A CN200780047423A CN101563474B CN 101563474 B CN101563474 B CN 101563474B CN 2007800474237 A CN2007800474237 A CN 2007800474237A CN 200780047423 A CN200780047423 A CN 200780047423A CN 101563474 B CN101563474 B CN 101563474B
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/30—Feeding material to presses
- B30B15/302—Feeding material in particulate or plastic state to moulding presses
- B30B15/308—Feeding material in particulate or plastic state to moulding presses in a continuous manner, e.g. for roller presses, screw extrusion presses
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
- C21B13/0013—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon reductant
- C21B13/002—Reduction of iron ores by passing through a heated column of carbon
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0086—Conditioning, transformation of reduced iron ores
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
- C21B13/143—Injection of partially reduced ore into a molten bath
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/248—Binding; Briquetting ; Granulating of metal scrap or alloys
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- Manufacturing & Machinery (AREA)
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- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Manufacture Of Iron (AREA)
Abstract
An apparatus for manufacturing compacted iron for manufacturing reduced materials containing fine reduced iron into compacted iron and an apparatus for manufacturing molten iron provided with the sameare provided. The apparatus for manufacturing compacted iron includes i) a charging hopper into which reduced materials containing fine reduced iron are charged, and ii) a pair of rollers that form a gap therebetween by being spaced apart from each other and that press the reduced materials containing fine reduced iron that are discharged from the charging hopper and pass through the gap, thereby manufacturing the compacted iron. The above-described charging hopper includes i) a surface of a wall, and ii) an integrated lower surface that is connected to the surface of the wall and is directed toward the pair of rollers. In addition, at least one discharging opening is formed on the integrated lower surface to discharge the reduced materials containing fine reduced iron to the pair of roll ers.
Description
Technical field
The present invention relates to a kind of device and a kind of equipment that uses this device to make molten iron that is used to make compacted irons (compacted iron), more particularly, the present invention relates to the device and a kind of equipment that uses this device manufacturing molten iron that are used to make compacted irons that a kind of reducing material that comprises direct-reduced iron by extruding (compact) is made compacted irons.
Background technology
At present, about in the world 60% iron output is to utilize the blast furnace process that has developed since 14th century to produce.According to blast furnace process, through the iron ore of sintering process with use coal smoke to install in the blast furnace together, and to blast furnace supply oxygen, with reduction of iron ore Cheng Tie, thereby make molten iron as the coke of raw material production with.
Consider response characteristic, require raw material to have the intensity of predeterminated level at least and have the infiltrative granularity that to guarantee in stove at the most general blast furnace process of factory that is used for making molten iron.For this reason, as mentioned above, using will be as the carbon source of fuel and reductive agent by the coke conduct of handling specific raw coal acquisition.In addition, main use has been passed through the agglomerate of continuous agglomerating technology as source of iron.
Therefore, modern blast furnace process needs the raw materials pretreatment device, for example coke manufacturing installation and agglomerating plant.That is, except blast furnace, also need to be equipped with auxiliary equipment, and need have the device that is used to prevent and minimize the pollution that produces by auxiliary equipment.Therefore, the problem of existence is to cause manufacturing cost to increase in a large amount of inputs aspect additional equipment and the device.
In order to solve these problems that blast furnace process is followed, done remarkable effort in global ironworks, acting as a fuel by direct use raw coal with exploitation accounts for the smelting reduction process that the world's fine ore of mineral products amount more than 80% produced molten iron with reductive agent and by direct use.
In the time will directly installing to the melting gasification furnace from the reduced iron powder that powdered iron ore transforms, reduced iron powder not only scatter, and the permeability deterioration of the gas in the melting gasification furnace.Therefore, developed and be used for the reduced iron powder briquetting and be mounted to the device of melting gasification furnace.That is, be used for making the device extruding reduced iron powder of material piece (briquette), to make reducing material.
Yet the equipment of material piece is made in traditional being used for can not handle a large amount of reducing materials that comprises reduced iron powder.Therefore, when installing to a large amount of reducing materials that comprises reduced iron powder in the loading hopper, the problem of existence is that the reducing material that comprises greater than the reduced iron powder that holds the limit (accommodation limit) is scattering into the outside.In addition, along with a large amount of reducing material that comprises reduced iron powder of packing into, the permeability deterioration of loading hopper, thus be difficult to discharge the gas that contains in the reducing material that comprises reduced iron powder.Because this point, because pressure change takes place in loading hopper, so the problem that exists is that the reduced iron powder influence that changes that is stressed can not be discharged equably from loading hopper.In addition, because the discharge gate (being individually formed at loading hopper) that is used for discharging reduced iron powder is vertically outstanding towards downside, so discharge gate is because heat and pressure and easy deformation.
Summary of the invention
Technical problem
A kind of device that is used to make compacted irons is provided, and the described device that is used to make compacted irons can be handled a large amount of reduced iron powders and emission gases, and is not easy Yin Re or pressure and is out of shape.In addition, provide a kind of equipment that is used to make molten iron that the device of compacted irons is made in above-mentioned being used to that is provided with.
Technical scheme
The device that is used to make compacted irons according to the embodiment of the invention a kind of comprises: i) loading hopper, and the reducing material that comprises reduced iron powder is installed in the described loading hopper; Ii) pair of rolls forms the gap by separating each other between described pair of rolls, and the reducing material that comprises reduced iron powder in described gap is discharged and passed to described pair of rolls extruding from described loading hopper, thereby make described compacted irons.Above-mentioned loading hopper comprises: i) wall surface; Ii) integrated lower surface, described integrated lower surface is connected to described wall surface, and towards described pair of rolls.
At least one discharge gate can be formed on the described integrated lower surface, is discharged to described pair of rolls with the reducing material that will comprise reduced iron powder.In addition, described at least one discharge gate can comprise a pair of discharge gate.In addition, described discharge gate can be arranged to respect to described loading hopper towards the central shaft of vertical direction in left side and right side symmetry.
Simultaneously, the device that is used for making compacted irons according to the embodiment of the invention a kind of can also comprise the screw feeder that is installed in described loading hopper, the central shaft towards vertical direction of described screw feeder and described loading hopper acutangulates inclination, and will enter into the reducing material discharge that comprises reduced iron powder of described loading hopper.Here, can define a plane that comprises described loading hopper towards the central shaft of the central shaft of vertical direction and described screw feeder.In described plane, can be not more than the angle that between the wall surface of the central shaft of described screw feeder and described loading hopper, forms in the angle towards forming between the central shaft of the central shaft of vertical direction and described screw feeder of described loading hopper.
In above-mentioned plane, the wall surface of described loading hopper can tilt, and becomes scope at the angle of 15 degree to 17 degree with respect to the central shaft of described screw feeder, becomes 16 angles of spending basically.In addition, the wall surface of described loading hopper can tilt, and becomes scope at the angle of 22 degree to 26 degree with respect to the central shaft towards vertical direction of described loading hopper, becomes 24 angles of spending basically.
Simultaneously, the device that is used to make compacted irons according to the embodiment of the invention can also comprise the partition wall that is installed between the described a pair of discharge gate.Here, described partition wall can comprise at least one guiding surface, and described at least one guiding surface guiding comprises the reducing material of reduced iron powder, so that it is discharged by described discharge gate.In addition, at least one guiding surface can be a pair of guiding surface.In addition, described a pair of guiding surface can converge with inclining towards each other, and forms partition wall.Can partition wall be set by this way, that is, the line that forms when the central shaft towards vertical direction of described loading hopper can converge each other with described a pair of guiding surface intersects.
Simultaneously, the equipment that is used to make molten iron according to the embodiment of the invention a kind of comprises: the device that is used to make compacted irons that i) is provided with said structure; Ii) crusher, the compacted irons fragmentation that will discharge from the described device that is used to make compacted irons; Iii) melting gasification furnace is installed in the described melting gasification furnace by the compacted irons of described crusher in crushing.Described melting gasification furnace can make described compacted irons fusing.In addition, can supply with lump coal or moulded coal to described melting gasification furnace.
Beneficial effect
The device that is used to make compacted irons according to the embodiment of the invention has big volumetrical loading hopper.Therefore, because loading hopper has enough clearance spaces, so install to the gas in the loading hopper with the reducing material that comprises reduced iron powder and be discharged from easily from the gas that the loading hopper of the reducing material that comprises reduced iron powder produces.Owing to discharge gas well, do not change fast so comprise the discharge pressure of the reducing material of reduced iron powder.
In addition, because the reducing material and the gas that comprise reduced iron powder by utilizing clearance spaces to separate well are not scattered with gas everywhere so comprise the fine particle that comprises in the reducing material of reduced iron powder.
In addition, the wall surface of loading hopper tilts, and becomes scope at the angle of 22 degree to 26 degree with respect to the central shaft towards vertical direction of loading hopper.Therefore, at the volumetrical that can increase loading hopper simultaneously, the reducing material that comprises reduced iron powder can not be deposited on the inboard of wall surface.
In addition, it is integral type that the lower surface of loading hopper is made into, thereby makes Yin Re and impact the minimizing deformation that causes.Therefore, owing to the distortion of the operation that can prevent screw feeder owing to discharge gate stops, and can improve the wearing quality of loading hopper, so can reduce the manufacturing cost of molten iron owing to the productivity that improves.
In addition, can also in loading hopper, comprise partition wall.Therefore, the amount of the reducing material that comprises reduced iron powder in the loading hopper can be kept staying, and the reducing material that comprises reduced iron powder can be easily discharged by discharge gate.
Because comprise that according to the equipment that is used to make molten iron of the embodiment of the invention above-mentioned being used to make the device of compacted irons, so can be with the good molten iron of low-cost workmanship.
In addition, because the coal of collecting from the production scene can be used as lump coal or moulded coal, thus can reduce production costs, and can reduce pollution.
Description of drawings
Fig. 1 is the perspective schematic view of device that is used to make compacted irons according to the embodiment of the invention.
Fig. 2 is the bottom perspective view of loading hopper.
Fig. 3 is the part sectioned view along the III-III line intercepting of Fig. 1.
Fig. 4 illustrates to make the concept map of gas from the technology of the inboard circulation of loading hopper.
Fig. 5 is in the schematic cross sectional views that is used for making the loading hopper that comprises in the device of compacted irons according to second embodiment of the invention.
Fig. 6 illustrates the equipment of molten iron is made in utilization according to the device of the manufacturing compacted irons of the embodiment of the invention synoptic diagram.
Embodiment
Come below with reference to accompanying drawings at length to explain exemplary embodiment of the present invention, so that the those skilled in the art in field easily implement the present invention under the present invention.Yet the present invention can realize with various forms, is not limited to the embodiment of explained later.In addition, in this specification sheets and accompanying drawing, identical label is represented components identical.
Fig. 1 schematically shows the device 100 that is used to make compacted irons according to the embodiment of the invention.The device 100 that is used to make compacted irons comprises loading hopper 10 and pair of rolls 20.
The device 100 that is used for making compacted irons shown in Figure 1, jacket 24 place the bottom of the device 100 that is used to make compacted irons, and feed box 30 is installed on the upside of jacket 24.The lower end of loading hopper 10 is inserted in the feed box 30 and with feed box 30 and combines, and loading hopper 10 places on the feed box 30.
The direction of following the arrow comprises the reducing material of reduced iron powder by opening 16 fillings of the loading hopper shown in Fig. 1 10.The reducing material that comprises reduced iron powder by the iron ore manufacturing.The reducing material that comprises reduced iron powder can also comprise additive, and makes in by the multistage fluidized bed reduction reactor.Can will utilize the reducing material that comprises reduced iron powder of other method manufacturing to be loaded in the loading hopper 10.Being formed on ventilation opening 14 on loading hopper 10 upsides removes with the reducing material that comprises reduced iron powder and installs in the loading hopper 10 and remain in gas in the loading hopper 10.Screw feeder 12 is installed in the loading hopper 10, in vertical direction with inclined at acute angles.Screw feeder 12 will enter into the reducing material that comprises reduced iron powder of loading hopper 10 and discharge towards described pair of rolls 20 under the effect of power.Screw feeder 12 is provided with spiral 122 (shown in Figure 3) in its lower end.By making the electric motor (not shown) rotation that is installed to screw feeder 12 upsides, spiral 122 is discharged the reducing material of collecting that comprises reduced iron powder downwards in screw feeder 12 downsides.
Feed box 30 pushes the reducing material that comprises reduced iron powder that is discharged to loading hopper 10 downsides in advance.In addition, feed box 30 makes the reducing material that comprises reduced iron powder distribute equably along the longitudinal direction (Y direction) of described pair of rolls 20.Be arranged in the reducing material that comprise reduced iron powder of described pair of rolls 20 extruding of jacket 24, thereby make compacted irons from loading hopper 10 discharges.Described pair of rolls 20 is separated from one another, and forms the gap between it.The reducing material that comprises reduced iron powder enters into the gap, and by these pair roller 20 extruding along the opposite directions rotation.Utilize above method to make compacted irons.Roller lid 26 is attached to the outside of this pair roller 20.
In an embodiment of the present invention, loading hopper 10 has the space that can hold a large amount of reducing materials that comprises reduced iron powder.Describe the structure of loading hopper 10 below in detail with reference to Fig. 2.
Fig. 2 shows the inverted loading hopper 10 of Fig. 1.For the ease of explaining that the integrated lower surface of loading hopper 10 is illustrated in the upside of Fig. 2.
Loading hopper 10 comprises wall surface 102 and integrated lower surface 104.Wall surface 102 forms the side of loading hopper 10.Integrated lower surface 104 is connected to the wall surface 102 of loading hopper 10, and is positioned at the below of loading hopper 10.Integrated lower surface 104 be formed towards above-described pair of rolls 20 (shown in Figure 1, Hereinafter the same).As example, can be by integrated lower surface 104 be made in the metal sheet bending.On the contrary, two metal sheets are made incline towards each other after, can weld these two metal sheets and be bonded to each other, perhaps come in conjunction with these two metal sheets, thereby make integrated lower surface 104 by screw.
Because the lower surface of traditional loading hopper is divided into two, applies thermal shocking so comprise the thermal reduction material of reduced iron powder to described lower surface.Therefore, lower surface thermal distortion.In addition, because the lower surface of traditional loading hopper separates,, the lower surface of traditional loading hopper do not comprise a large amount of reducing materials of reduced iron powder so having enough spaces to hold.On the contrary, because the integrated lower surface 104 shown in Fig. 2 is integrally formed,, and can suppress this thermal shocking so described integrated lower surface can make the thermal shocking that is caused by the reducing material that comprises reduced iron powder distribute equably.Therefore, can reduce the thermal distortion that causes by the thermal reduction material that comprises reduced iron powder.In addition, can guarantee that owing to integrated surperficial 104 big space is arranged in loading hopper 10, so be suitable for holding a large amount of reducing materials that comprises reduced iron powder.
Fig. 3 shows along the cross-sectional structure of the III-III line intercepting of Fig. 1.As shown in Figure 3, suppose to be positioned at same plane towards the central shaft CA of vertical direction and the central shaft SA of spiral organ 12, can by as the first jiao of α that give a definition, second jiao of β and third angle γ.First jiao of α is meant towards the angle that forms between the central shaft CA of vertical direction and the central shaft SA.In addition, second jiao of β is meant the angle that forms between central shaft SA and wall surface 102.In addition, third angle γ is meant the angle of first jiao of α and second jiao of β sum.
Here, first jiao of α is equal to or less than second jiao of β.Owing to install to the downside that the reducing material that comprises reduced iron powder in the loading hopper 10 should be discharged to loading hopper 10 reposefully, so preferably, screw feeder 12 be arranged near vertical direction.Therefore, preferably, first jiao of α is little.In addition, hold a large amount of reducing materials that comprises reduced iron powder, so preferably, maximize the volume that increases loading hopper 10 by making second jiao of β in order to make loading hopper 10.Therefore, second jiao of β can be equal to or greater than first jiao of α.On the contrary, if first jiao of α then is difficult to discharge well the reducing material that comprises reduced iron powder greater than second jiao of β, and the volume of loading hopper 10 is increased greatly.As a result, be difficult to circulate, change constantly so comprise the discharge pressure of the reducing material of reduced iron powder by ventilation opening 14 (shown in Figure 1) owing to comprise the gas that contains in the reducing material of reduced iron powder.Therefore, be difficult to the good compacted irons of workmanship.
More particularly, second jiao of β can be at 15 degree to the scope of 17 degree.If second jiao of β then can not sufficiently guarantee to be used for holding the required space of a large amount of reducing materials that comprises reduced iron powder or to make the required space of gas communication less than 15 degree.In addition, if second jiao of β surpasses 17 degree, then, be deposited in wall surface 102 so comprise the reducing material of reduced iron powder because the gradient of wall surface 102 is very little.Therefore, when second jiao of β when 15 degree are to the scopes of 17 degree, gas and the reducing material that comprises reduced iron powder can be discharged to the outside well.
Simultaneously, third angle γ can be at 22 degree to the scope of 26 degree.Since third angle γ be first jiao of α and second jiao of β and, so if third angle γ less than 22 the degree, then second jiao of β diminishes.Therefore, can not sufficiently guarantee to be used for holding the required space of a large amount of reducing materials that comprises reduced iron powder or to make the required space of gas communication.In addition, if third angle γ surpasses 26 degree, then since the gradient of wall surface diminish, so comprise on the inboard that the reducing material of reduced iron powder is deposited in wall surface 102.Therefore, if third angle γ spends to the scopes of 26 degree 22, then gas and the reducing material that comprises reduced iron powder can be discharged to the outside well.
Fig. 4 shows the reducing material that comprises reduced iron powder and gas are discharged to the outside from loading hopper 10 state.
The reducing material that will comprise direct-reduced iron DRI powder installs to the loading hopper 10 from upside.In addition, the reducing material that comprises direct-reduced iron DRI powder is owing to its reduction is in hot state, and contained gas.Install to reducing material that comprises direct-reduced iron DRI powder in the loading hopper 10 and gas when falling inboard by loading hopper 10, because their density variation and separated from one another.Then, gas separated is discharged to the outside of loading hopper 10 by ventilation opening 14 (shown in Figure 1).The gas that produces from the reducing material that comprises direct-reduced iron DRI powder is discharged to the outside of loading hopper 10 equally by ventilation opening 14.
Because loading hopper 10 has enough internal spaces,, and can remove so gas can easily separate from the reducing material that comprises reduced iron powder.Therefore, can be discharged to the downside of loading hopper 10 because of the reducing material that comprises reduced iron powder of having removed the increase of gas density.Therefore, can make highdensity compacted irons.In addition, owing to discharged gas well, so the pressure change in the loading hopper 10 that causes because of the gas that is not discharged from is little.Therefore, be uniformly owing to comprise the discharge pressure of the reducing material of reduced iron powder, so can make compacted irons with uniform density.
Fig. 5 shows and is being used for making 70 of the loading hopper that comprises in the device of compacted irons according to second embodiment of the invention.Because except partition wall (party wall) 15, loading hopper 70 is identical with loading hopper 10 among Fig. 2, so identical part is represented that by identical label and omission is to their detailed description.The circle of the amplification among Fig. 5 shows the working order of partition wall 15.
Partition wall 15 comprises a pair of guiding surface 152.Partition wall 15 is installed in this between the discharge gate 106.More particularly, the mounting means of partition wall 15 is, the line L that is formed by a pair of guiding surface 152 crosses each other to intersect with central shaft CA towards vertical direction.Therefore, the amount that installs to the reducing material that comprises reduced iron powder in the loading hopper 70 is divided into many parts, and every part of reducing material that comprises reduced iron powder can be discharged by discharge gate 106 respectively.Therefore, partition wall 105 also is suitable for keeping the amount of the reducing material that comprises reduced iron powder in the loading hopper 70 when the reducing material that promotes to comprise reduced iron powder is discharged from.
As shown in the amplification circle among Fig. 5,,, be directed into discharge gate 106 simultaneously and discharged well so comprise the reducing material slip on guiding surface 152 easily of reduced iron powder because guiding surface 152 tilts.Though do not illustrate in Fig. 5, the front and rear surfaces of partition wall 15 is stopped fully by wall surface 102.Therefore, the reducing material that comprises reduced iron powder can not enter into the interior space of partition wall 15.Simultaneously, loading hopper 70 can be formed by the mode of completely filled with the internal space of partition wall 15.
Fig. 6 shows the equipment 200 that is used to make molten iron that is provided with the device 100 that is used to make compacted irons.
The equipment 200 that is used to make molten iron comprises device 100, crusher 40 and the melting gasification furnace 60 that is used to make compacted irons.The compacted irons fragmentation that crusher 40 will be discharged from the device 100 that is used to make compacted irons.Melting gasification furnace 60 makes the compacted irons fusing that installs to the machine that is broken 40 fragmentations in the melting gasification furnace 60.The tank 50 temporary transient compacted irons that store machine 40 fragmentations that are broken.Because those skilled in the art can easily understand the structure of crusher 40 and melting gasification furnace 60, so will omit detailed description to them.
To supply to melting gasification furnace 60 such as the coal of lump coal or moulded coal.For example, the granularity of collecting from the production scene can be used as lump coal above the coal of 8mm.For example, the coal that the granularity that can collect from the production scene is no more than 8mm grinds, and binding agent is added to wherein, and carry out moulding by pressing machine (press), thereby it is manufactured moulded coal.
After installing to above-mentioned coal in the melting gasification furnace 60, supply with oxygen O to melting gasification furnace 60
2, make the compacted irons fusing, and discharge molten iron by the iron notch (not shown).Use aforesaid method, can produce superior in quality molten iron.Though illustrate and described the present invention particularly with reference to exemplary embodiment of the present invention, but those skilled in the art are to be understood that, under the situation that does not break away from the spirit and scope of the present invention that are defined by the claims, can make various changes aspect form and the details at this.
Claims (14)
1. device that is used to make compacted irons, described device comprises:
Loading hopper, the reducing material that comprises reduced iron powder is installed in the described loading hopper;
Pair of rolls forms the gap by separating each other between described pair of rolls, the reducing material that comprises reduced iron powder in described gap is discharged and passed to described pair of rolls extruding from described loading hopper, thereby make described compacted irons,
Wherein, described loading hopper comprises wall surface and integrated lower surface, and described integrated lower surface is connected to described wall surface and towards described pair of rolls,
Wherein, on described integrated lower surface, form at least one discharge gate, be discharged to described pair of rolls with the reducing material that will comprise reduced iron powder.
2. device as claimed in claim 1, wherein, described at least one discharge gate comprises a pair of discharge gate.
3. device as claimed in claim 2, wherein, described a pair of discharge gate be arranged to respect to described loading hopper towards the central shaft of vertical direction in left side and right side symmetry.
4. device as claimed in claim 1, wherein, described device also comprises the screw feeder that is installed in the described loading hopper, the central shaft towards vertical direction of described screw feeder and described loading hopper acutangulates inclination, and will enter into the reducing material discharge that comprises reduced iron powder of described loading hopper.
5. device as claimed in claim 4, wherein, comprise described loading hopper in the plane of the central shaft of the central shaft of vertical direction and described screw feeder, be not more than the angle that between the wall surface of the central shaft of described screw feeder and described loading hopper, forms in the angle towards forming between the central shaft of the central shaft of vertical direction and described screw feeder of described loading hopper.
6. device as claimed in claim 5, wherein, the wall surface of described loading hopper tilts, and becomes scope at the angle of 15 degree to 17 degree with respect to the central shaft of described screw feeder.
7. device as claimed in claim 6, wherein, the wall surface of described loading hopper tilts, and becomes the angle of 16 degree with respect to the central shaft of described screw feeder.
8. device as claimed in claim 5, wherein, the wall surface of described loading hopper tilts, and becomes scope at the angle of 22 degree to 26 degree with respect to the central shaft towards vertical direction of described loading hopper.
9. device as claimed in claim 8, wherein, the wall surface of described loading hopper tilts, and becomes the angle of 24 degree with respect to the central shaft towards vertical direction of described loading hopper.
10. device as claimed in claim 2, wherein, described loading hopper also comprises partition wall, wherein, partition wall is installed between the described a pair of discharge gate.
11. device as claimed in claim 10, wherein, described partition wall comprises at least one guiding surface, and described at least one guiding surface guiding comprises the reducing material of reduced iron powder, so that it is discharged by described discharge gate.
12. device as claimed in claim 11, wherein, described partition wall comprises a pair of guiding surface that converges with inclining towards each other, and wherein, the line that forms when the central shaft towards vertical direction of described loading hopper converges each other with described a pair of guiding surface intersects.
13. an equipment that is used to make molten iron, described equipment comprises:
The device that is used to make compacted irons as claimed in claim 1;
Crusher, the compacted irons fragmentation that will discharge from the described device that is used to make compacted irons;
Melting gasification furnace is installed in the described melting gasification furnace by the compacted irons of described crusher in crushing, and described melting gasification furnace makes described compacted irons fusing.
14. equipment as claimed in claim 13 wherein, is supplied with lump coal or moulded coal to described melting gasification furnace.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020060131106 | 2006-12-20 | ||
| KR1020060131106A KR100797865B1 (en) | 2006-12-20 | 2006-12-20 | Apparatus for manufacturing compacted irons of reduced materials comprising fine direct reduced irons and apparatus for manufacturing molten irons provided with the same |
| KR10-2006-0131106 | 2006-12-20 | ||
| PCT/KR2007/006325 WO2008075845A1 (en) | 2006-12-20 | 2007-12-06 | Apparatus for manufacturing compacted irons of reduced materials comprising fine direct reduced irons and apparatus for manufacturing molten irons provided with the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101563474A CN101563474A (en) | 2009-10-21 |
| CN101563474B true CN101563474B (en) | 2011-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800474237A Active CN101563474B (en) | 2006-12-20 | 2007-12-06 | Apparatus for manufacturing compacted irons of reduced materials comprising fine direct reduced irons and apparatus for manufacturing molten irons provided with the same |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR100797865B1 (en) |
| CN (1) | CN101563474B (en) |
| WO (1) | WO2008075845A1 (en) |
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|---|---|---|---|---|
| KR101746972B1 (en) | 2015-12-14 | 2017-06-14 | 주식회사 포스코 | Sampling apparatus and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1795279A (en) * | 2004-07-12 | 2006-06-28 | Posco公司 | Apparatus for manufacturing compacted irons of reduced materials comprising fine direct reduced irons and apparatus for manufacturing molten irons using the same |
| CN1842607A (en) * | 2004-07-16 | 2006-10-04 | Posco公司 | An apparatus for manufacturing compacted irons of reduced materials comprising fine direct reduced irons and an apparatus for manufacturing molten irons using the same |
| CN1842606A (en) * | 2004-06-30 | 2006-10-04 | Posco公司 | An apparatus for pressing cheek plates and an apparatus for manufacturing briquettes using the same |
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| KR101072490B1 (en) * | 2004-07-16 | 2011-10-11 | 주식회사 포스코 | An apparatus for manufacturing compacted irons of reduced materials comprising fine direct reduced irons and an apparatus for manufacturing molten irons using the same |
| KR101036642B1 (en) * | 2004-07-09 | 2011-05-24 | 주식회사 포스코 | An apparatus for manufacturing compacted irons of reduced materials comprising fine direct reduced irons and an apparatus for manufacturing molten irons using the same |
| KR101036638B1 (en) * | 2004-07-12 | 2011-05-24 | 주식회사 포스코 | An apparatus for manufacturing compacted irons of reduced materials comprising fine direct reduced irons and an apparatus for manufacturing molten irons using the same |
| KR100711764B1 (en) * | 2005-07-11 | 2007-04-25 | 주식회사 포스코 | Apparatus for manufacturing compacted iron of reduced materials comprising fine direct reduced irons and apparatus for manufacturing molten irons using the same |
| KR100711765B1 (en) | 2005-07-11 | 2007-04-25 | 주식회사 포스코 | Apparatus for manufacturing compacted irons of reduced materials comprising fine direct reduced irons and apparatus for manufacturing molten irons provided with the same |
| KR101036639B1 (en) * | 2004-07-16 | 2011-05-24 | 주식회사 포스코 | An apparatus for manufacturing compacted iron of reduced materials comprising fine direct reduced irons and an apparatus for manufacturing molten irons using the same |
| KR101036646B1 (en) * | 2004-07-16 | 2011-05-24 | 주식회사 포스코 | An apparatus for manufacturing compacted irons of reduced materials comprising fine direct reduced irons and an apparatus for manufacturing molten irons using the same |
| KR101118286B1 (en) * | 2004-12-02 | 2012-03-20 | 주식회사 포스코 | Method for manufacturing compacted irons comprising fine direct reduced irons, an apparatus for manufacturing compacted irons comprising fine direct reduced irons, and an apparatus for manufacturing molten irons using the same |
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- 2006-12-20 KR KR1020060131106A patent/KR100797865B1/en active IP Right Grant
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1842606A (en) * | 2004-06-30 | 2006-10-04 | Posco公司 | An apparatus for pressing cheek plates and an apparatus for manufacturing briquettes using the same |
| CN1795279A (en) * | 2004-07-12 | 2006-06-28 | Posco公司 | Apparatus for manufacturing compacted irons of reduced materials comprising fine direct reduced irons and apparatus for manufacturing molten irons using the same |
| CN1842607A (en) * | 2004-07-16 | 2006-10-04 | Posco公司 | An apparatus for manufacturing compacted irons of reduced materials comprising fine direct reduced irons and an apparatus for manufacturing molten irons using the same |
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| WO2008075845A1 (en) | 2008-06-26 |
| CN101563474A (en) | 2009-10-21 |
| KR100797865B1 (en) | 2008-01-24 |
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