CN203159661U - Solar power generating hydrogen-production steelmaking device and reductant supply system thereof - Google Patents
Solar power generating hydrogen-production steelmaking device and reductant supply system thereof Download PDFInfo
- Publication number
- CN203159661U CN203159661U CN2013201763646U CN201320176364U CN203159661U CN 203159661 U CN203159661 U CN 203159661U CN 2013201763646 U CN2013201763646 U CN 2013201763646U CN 201320176364 U CN201320176364 U CN 201320176364U CN 203159661 U CN203159661 U CN 203159661U
- Authority
- CN
- China
- Prior art keywords
- hydrogen
- supply system
- iron ore
- gas
- medium supply
- 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
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/133—Renewable energy sources, e.g. sunlight
Abstract
The utility model provides a reductant supply system of a solar power generating hydrogen-production steelmaking device. The reductant supply system comprises a solar power generating device and a hydrogen production device for producing hydrogen by utilizing the electric power provided by the solar power generating device. The hydrogen production device of the reductant supply system utilizes the electric power provided by the solar power generating device to electrolyze the water so as to prepare the reductive gas-hydrogen, the hydrogen can reduce the iron ore powder of an iron ore powder reduction system of a solar power generating hydrogen-production steelmaking device to the iron powder through the direct reaction way, so that the agglomeration procedure of the iron ore powder can be avoided, coke is unnecessary to be used as a skeleton for supporting a stock column, and the application of the coke can be avoided; and meanwhile, the hydrogen is used as the reductant, so that the clean production is realized, the pollution for the environment and the steel material can be reduced, and the production of the ultrapure steel can be realized. The utility model also provides a solar power generating hydrogen-production steelmaking device which comprises the reductant supply system.
Description
Technical field
The utility model relates to steelmaking technical field, more particularly, relates to a kind of reducing medium supply system of solar electrical energy generation hydrogen manufacturing steelmaking equipment, and the utility model also relates to a kind of solar electrical energy generation hydrogen manufacturing steelmaking equipment with above-mentioned reducing medium supply system.
Background technology
The normal Production Flow Chart of adopting of iron and steel (long flow process) is to obtain molten steel from iron ore, mainly through oversintering (or making ball), coking, blast furnace ironmaking, four process procedures of converter steelmaking.In the existing blast furnace iron-making process, the normal solids such as coke or coal powder injection that use are as reducing medium, coke burns before the air port and produces high temperature and reducing gas carbon monoxide and carbonic acid gas, the furnace charge that heating slowly descends in the uphill process in stove, and the oxide compound in the reducing iron ore is metallic iron.The reduction of iron ore is indirect reduction more than 70% in the above-mentioned technology, belong to gas-solid reaction, require blast furnace to keep air permeability and good, so the fine iron breeze that obtains after the lean ore ore dressing and rich ore lump ore powder all must could be for the blast furnace uses, namely through oversintering (or making ball) technological process through agglomeration.
The purposes of coke in blast furnace is fuel and the ferriferous oxide reductive agent of smelting institute's heat requirement as providing on the one hand, and more important role is the skeleton that the stock column up to tens of meters is supported in conduct after the softening fusion of ore, is again the coal gas path simultaneously.
As the coke of support frame at high temperature easily and the air obnoxious flavoures such as generating carbon monoxide, carbonic acid gas that reacts, and the reduzate of coke and iron ore also can produce above-mentioned gas, and then to environment generation pollution.Because the material treatment capacity of sintering (or making ball) accounts for second (being only second to ironmaking produces) of Steel Complex, energy consumption is only second to ironmaking and steel rolling and occupies the 3rd, so the usage quantity of coke is higher, environmental pollution is serious.Simultaneously, repeat in the traditional process that carbon can pollute molten steel in the process of redox reaction, and repeated to add heat gain system energy consumption.So the use of coke has brought serious pollution problem, not only environment is polluted, also steel itself are polluted, limited the production of ultra-clean steel.
Secondly, because the molten steel carburizing that generates is more, also need decarburization when obtaining the finished product molten steel; The carbon of iron liquid also can make the Si in the gangue be restored in the molten steel, also need take off Si when obtaining the finished product molten steel, has increased auxiliary process, causes steel-smelting production process complicated, and the production cycle is longer.
The utility model content
In view of this, the purpose of this utility model is to provide a kind of reducing medium supply system of solar electrical energy generation hydrogen manufacturing steelmaking equipment, reduces the pollution to environment and steel itself, and then realizes the production of ultra-clean steel.
The utility model also provides a kind of solar electrical energy generation hydrogen manufacturing steelmaking equipment with above-mentioned reducing medium supply system.
In order to achieve the above object, the utility model provides following technical scheme:
A kind of reducing medium supply system of solar electrical energy generation hydrogen manufacturing steelmaking equipment, described reducing medium supply system comprise that device of solar generating and the electric energy that utilizes described device of solar generating to provide prepare the Preparation of Hydrogen device of hydrogen.
Preferably, above-mentioned reducing medium supply system also comprises for the gas pressurized device to described hydrogen supercharging.
Preferably, above-mentioned reducing medium supply system also comprises first gas heater that is arranged between described Preparation of Hydrogen device and the described gas pressurized device.
Preferably, in the above-mentioned reducing medium supply system, described device of solar generating is at least a in solar energy power generating, photo-thermal power generation, photochemistry Generate, Generation, Generator induction generating and the photo bio power generation assembly.
From above-mentioned technical scheme as can be seen, the reducing medium supply system of the solar electrical energy generation hydrogen manufacturing steelmaking equipment that the utility model provides comprises device of solar generating and Preparation of Hydrogen device, above-mentioned Preparation of Hydrogen device utilize electric energy that device of solar generating provides with water electrolysis, prepare reducing gas---hydrogen, so above-mentioned reducing medium supply system comes down to the hydrogen supply system.
The hydrogen that the reducing medium supply system that the utility model provides provides can be reduced into iron powder with the powdered iron ore of the powdered iron ore restoring system of solar electrical energy generation hydrogen manufacturing steelmaking equipment, belong to direct reaction, avoided the iron mineral powder agglomeration operation, so needn't use coke as the skeleton that supports stock column, avoid the use of coke.Because the hydrogen atom radius is little, reduction reaction speed is fast; Reduzate is water, and easily separated processing has realized cleaner production.Simultaneously, hydrogen reducing avoided carbon in reduction process to the pollution of molten iron, changed and repeated the molten steel pollution problem that redox reaction causes in the traditional process, reduced and repeated heating, reduced system energy consumption.Therefore, the hydrogen reducing iron ore steel-making that utilizes reducing medium supply system of the present utility model to provide has largely solved pollution problem, has not only reduced the pollution to environment, has also avoided the pollution to steel itself, and then has realized the production of ultra-clean steel.
Secondly, the reducing medium supply system molten steel carburizing that reduction generates to powdered iron ore that utilizes the utility model to provide is few, need not decarburization when obtaining the finished product molten steel; Hydrogen is sulfur-bearing not, need not desulfurization when obtaining the finished product molten steel; The dissolved oxygen activity height because iron liquid carbon activity is low, the Si in the gangue can not be restored in the molten steel, need not to take off Si when obtaining the finished product molten steel, therefore can obtain molten steel from iron ore or one step of oxides-containing iron; So reduced auxiliary process, simplified the production technique of steel-making, shortened the production cycle, improved production efficiency.
The utility model also provides a kind of solar electrical energy generation hydrogen manufacturing steelmaking equipment, comprise the powdered iron ore supply system, the powdered iron ore restoring system be used for to be given reducing medium supply system that the powdered iron ore of described powdered iron ore restoring system provides reductant and is received iron powder and described iron powder is smelt the electric arc furnace of steel from described powdered iron ore restoring system; Described reducing medium supply system is above-mentioned any reducing medium supply system.Because above-mentioned reducing medium supply system has above-mentioned effect, the solar electrical energy generation hydrogen manufacturing steelmaking equipment with above-mentioned reducing medium supply system has same effect, so this paper repeats no more.
Preferably, in the above-mentioned solar electrical energy generation hydrogen manufacturing steelmaking equipment, described powdered iron ore supply system comprises:
Receive iron ore and described iron ore is worn into the abrasive dust device of powdered iron ore;
Described powdered iron ore is carried out the multistage cyclone preheater of preheating;
Described powdered iron ore is delivered to the powdered iron ore lifting gear of described multistage cyclone preheater.
Preferably, in the above-mentioned solar electrical energy generation hydrogen manufacturing steelmaking equipment, also comprise the gas outlet that is arranged on described multistage cyclone preheater, the gas-cleaning installation that receives tail gas that described multistage cyclone preheater discharges and described tail gas is purified and the exit that is arranged on described gas-cleaning installation, be used for removing the water of the tail gas after described gas-cleaning installation purifies, and carry the gas dewatering device of dry tail gas to described reducing medium supply system.
Preferably, in the above-mentioned solar electrical energy generation hydrogen manufacturing steelmaking equipment, described powdered iron ore restoring system comprises the circulating fluidized bed of at least two cascades; Comprise that also at least a portion of the oxygen of by-product provided the transport pipe to described circulating fluidized bed when described Preparation of Hydrogen device was prepared hydrogen between the Preparation of Hydrogen device and at least one described circulating fluidized bed that is communicated in described reducing medium supply system.
Preferably, in the above-mentioned solar electrical energy generation hydrogen manufacturing steelmaking equipment, described powdered iron ore restoring system comprises that the hydrogen that utilizes described reducing medium supply system to provide is reduced into the prereduction iron powder the whole reduction circulating fluidized bed of whole reduced iron powder and uses the described tail gas that reduces circulating fluidized bed eventually described powdered iron ore to be reduced into the prereduction circulating fluidized bed of described prereduction iron powder.
Preferably, in the above-mentioned solar electrical energy generation hydrogen manufacturing steelmaking equipment, the preheating that described powdered iron ore restoring system also comprises the tail gas outlet that is arranged on described prereduction circulating fluidized bed and described multistage cyclone preheater exports with second gas heater between the gas inlet and the tail gas that is arranged on the described circulating fluidized bed of reduction eventually and the 3rd gas heater between the gas inlet of the reduction of described prereduction circulating fluidized bed.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the solar electrical energy generation hydrogen manufacturing steelmaking equipment that provides of the utility model embodiment.
Embodiment
The utility model embodiment provides a kind of reducing medium supply system of solar electrical energy generation hydrogen manufacturing steelmaking equipment, has reduced the pollution to environment and steel itself, and then has realized the production of ultra-clean steel.
For the purpose, technical scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing among the utility model embodiment, technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to accompanying drawing 1, the reducing medium supply system of the solar electrical energy generation hydrogen manufacturing steelmaking equipment that the utility model embodiment provides comprises that device of solar generating 7 and the electric energy that utilizes device of solar generating 7 to provide prepare the Preparation of Hydrogen device 8 of hydrogen.
Above-mentioned Preparation of Hydrogen device 8 utilize electric energy that device of solar generating 7 provides with water electrolysis, prepare reducing gas---hydrogen, then above-mentioned reducing medium supply system comes down to the hydrogen supply system.
The hydrogen that the reducing medium supply system that the utility model embodiment provides provides can be reduced into iron powder with the powdered iron ore of the powdered iron ore restoring system of solar electrical energy generation hydrogen manufacturing steelmaking equipment, belong to direct reaction, avoided the iron mineral powder agglomeration operation, so needn't use coke as the skeleton that supports stock column, avoid the use of coke.Because the hydrogen atom radius is little, reduction reaction speed is fast; Reduzate is water, and easily separated processing has realized cleaner production.Simultaneously, hydrogen reducing avoided carbon in reduction process to the pollution of molten iron, changed and repeated the molten steel pollution problem that redox reaction causes in the traditional process, reduced and repeated heating, reduced system energy consumption.Therefore, the hydrogen reducing iron ore steel-making that utilizes the reducing medium supply system of present embodiment to provide has largely solved pollution problem, has not only reduced the pollution to environment, has also avoided the pollution to steel itself, and then has realized the production of ultra-clean steel.
Secondly, the reducing medium supply system molten steel carburizing that reduction generates to powdered iron ore that utilizes present embodiment to provide is few, need not decarburization when obtaining the finished product molten steel; Hydrogen is sulfur-bearing not, need not desulfurization when obtaining the finished product molten steel; The dissolved oxygen activity height because iron liquid carbon activity is low, the Si in the gangue can not be restored in the molten steel, need not to take off Si when obtaining the finished product molten steel, therefore can obtain molten steel from iron ore or one step of oxides-containing iron; So reduced auxiliary process, simplified the production technique of steel-making, shortened the production cycle, improved production efficiency.
Preferably, the reducing medium supply system that provides of above-described embodiment also comprises for the gas pressurized device 10 to the hydrogen supercharging.Utilize device of solar generating 7 to produce electric energy, this electric energy of recycling with the water electrolysis in the Preparation of Hydrogen device 8, prepare hydrogen, then 10 pairs of hydrogen superchargings of gas pressurized device, and provide the hydrogen of supercharging to the powdered iron ore restoring system of solar electrical energy generation hydrogen manufacturing steelmaking equipment, make the powdered iron ore in the hydrogen reducing powdered iron ore restoring system.Hydrogen after the supercharging enters in the powdered iron ore restoring system with certain air pressure, has realized and fully the contacting of powdered iron ore, and has improved reduction efficiency.
Further, above-mentioned reducing medium supply system also comprises first gas heater 9 that is arranged between Preparation of Hydrogen device 8 and the gas pressurized device 10.In the present embodiment, the hydrogen that 9 pairs of Preparation of Hydrogen devices 8 of first gas heater provide heats, and the hydrogen after the heating has certain heat, is convenient to the carrying out of reduction reaction; The then hydrogen supercharging after 10 pairs of heating of gas pressurized device, and the hydrogen of supercharging is provided to the powdered iron ore restoring system.But reducing medium supply system of the present utility model is not limited thereto, as long as the reducing medium supply system can use sun power to generate electricity, with the electric energy that produces for the preparation of hydrogen and the hydrogen of preparation is offered the powdered iron ore restoring system get final product.In one embodiment, the hydrogen supply system comprises device of solar generating, Preparation of Hydrogen device and gas pressurized device, and does not comprise gas heater.
In order further to optimize technique scheme, device of solar generating 7 is preferably at least a in solar energy power generating, photo-thermal power generation, photochemistry Generate, Generation, Generator induction generating and the photo bio power generation assembly.
The utility model embodiment also provides a kind of solar electrical energy generation hydrogen manufacturing steelmaking equipment, please refer to accompanying drawing 1, and this solar electrical energy generation hydrogen manufacturing steelmaking equipment comprises the powdered iron ore supply system, powdered iron ore restoring system, reducing medium supply system and electric arc furnace 6; Wherein, the reducing medium supply system that the reducing medium supply system provides for any embodiment of the utility model is used for providing reductant to the powdered iron ore of powdered iron ore restoring system---hydrogen.The powdered iron ore restoring system receives the powdered iron ore of powdered iron ore supply system supply and the hydrogen of reducing medium supply system (being the hydrogen supply system) supply, uses hydrogen that powdered iron ore is reduced into iron powder; Electric arc furnace 6 receives iron powder and iron powder is smelt steel from the powdered iron ore restoring system.
The reducing medium supply system that above-mentioned solar electrical energy generation hydrogen manufacturing steelmaking equipment adopts present embodiment to provide, reduced the pollution to environment and steel itself, and then realized the production of ultra-clean steel, reduced auxiliary process simultaneously, simplified the production technique of steel-making, shorten the production cycle, improved production efficiency; Its advantage is brought by the reducing medium supply system, concrete please refer to part relevant in above-described embodiment, just repeats no more at this.
Concrete, the powdered iron ore supply system of above-described embodiment comprises abrasive dust device 1, powdered iron ore lifting gear 2 and multistage cyclone preheater 3.Abrasive dust device 1 receives iron ore and iron ore is worn into powdered iron ore; Powdered iron ore lifting gear 2 is promoted to powdered iron ore certain altitude and powdered iron ore is delivered to multistage cyclone preheater 3; 3 pairs of powdered iron ore of multistage cyclone preheater are carried out preheating.In one embodiment, multistage cyclone preheater 3 uses the tail gas of powdered iron ore restoring system discharge that powdered iron ore is carried out preheating.
Though being shown among Fig. 1, the powdered iron ore supply system comprises abrasive dust device 1, powdered iron ore lifting gear 2 and multistage cyclone preheater 3, but the equipment of production steel of the present utility model is not limited thereto, as long as the powdered iron ore supply system can be to powdered iron ore restoring system supply cold conditions or hot powdered iron ore.In one embodiment, the powdered iron ore supply system only comprises for the ground abrasive dust device of iron ore.In another embodiment, the powdered iron ore supply system only comprises at least a e Foerderanlage of carrying in cold conditions powdered iron ore or the hot powdered iron ore.
Further in the technical scheme, solar electrical energy generation hydrogen manufacturing steelmaking equipment also comprises gas-cleaning installation 13 and gas dewatering device 14, gas-cleaning installation 13 is arranged on the gas outlet of multistage cyclone preheater 3, and gas dewatering device 14 is arranged on the exit of gas-cleaning installation 13.Gas-cleaning installation 13 receives tail gas that multistage cyclone preheaters 3 discharge and this tail gas is purified, and in one embodiment, gas-cleaning installation 13 comprises at least a in desulfurizer, denitrification apparatus, the cleaning apparatus.The tail gas that gas dewatering device 14 receives after purifying is removed the water in this tail gas, and carries dry tail gas to the reducing medium supply system.Concrete, the gas dewatering device 14 of present embodiment is carried dry tail gas to first gas heater 9 in the reducing medium supply system; This moment, gas-cleaning installation 13 and gas dewatering device 14 were successively set on the first gas heater 9(or the gas pressurized device 10 of multistage cyclone preheater 3 and hydrogen supply system) between; Certainly, gas-cleaning installation 13 and gas dewatering device 14 can also be successively set between the gas pressurized device 10 of multistage cyclone preheater 3 and hydrogen supply system, and present embodiment is not done concrete restriction to this.
In the solar electrical energy generation hydrogen manufacturing steelmaking equipment that above-described embodiment provides, the powdered iron ore restoring system comprises the circulating fluidized bed of at least two cascades.Hereinafter described the circulating fluidized bed that the powdered iron ore restoring system comprises two cascades, but the utility model is not limited thereto.The powdered iron ore restoring system can comprise the circulating fluidized bed more than two cascade.
Preferably, the powdered iron ore restoring system comprises prereduction circulating fluidized bed 4 and reduces circulating fluidized bed 5 eventually.
Prereduction circulating fluidized bed 4 receives the powdered iron ore of powdered iron ore supply system (for example the multistage cyclone preheater 3) supply and the hydrogen containing tail gas that whole reduction circulating fluidized bed 5 is discharged, and uses this hydrogen containing tail gas reduced iron breeze, obtains the prereduction iron powder.The hydrogen containing tail gas that prereduction circulating fluidized bed 4 is discharged can be provided to multistage cyclone preheater 3, so that powdered iron ore is carried out preheating.In this case, the powdered iron ore restoring system also can comprise second gas heater 12 of the preheating that is arranged on multistage cyclone preheater 3 between the tail gas outlet of gas inlet and prereduction circulating fluidized bed 4, heats with the hydrogen containing tail gas that prereduction circulating fluidized bed 4 is discharged.
Reduction circulating fluidized bed 5 receives the prereduction iron powder of prereduction circulating fluidized bed 4 supplies and the hydrogen of hydrogen supply system (for example gas pressurized device 10) supply eventually, and uses this hydrogen reducing prereduction iron powder, obtains whole reduced iron powder.As mentioned above, the hydrogen containing tail gas of reduction circulating fluidized bed 5 discharges can be provided to prereduction circulating fluidized bed 4 eventually, to be used for the reduced iron breeze.In this case, the powdered iron ore restoring system also can comprise three gas heater 11 of the reduction that is arranged on prereduction circulating fluidized bed 4 between the tail gas outlet of gas inlet and whole reduction circulating fluidized bed 5, so that the whole hydrogen containing tail gas that reduces circulating fluidized bed 5 discharges is heated.
In order further to optimize technique scheme, solar electrical energy generation hydrogen manufacturing steelmaking equipment comprises also between the Preparation of Hydrogen device 8 and at least one circulating fluidized bed that is communicated in the reducing medium supply system that at least a portion of the oxygen of by-product provides the transport pipe (not shown) to circulating fluidized bed during with Preparation of Hydrogen device 8 preparation hydrogen.So, by above-mentioned transport pipe, at least one that at least a portion of the oxygen of by-product is provided in prereduction circulating fluidized bed 4 and the whole reduction circulating fluidized bed 5 during Preparation of Hydrogen device 8 preparation hydrogen makes combustion of hydrogen wherein come to provide heat for the reduction of powdered iron ore or prereduction iron powder.
As shown in Figure 1, electric arc furnace 6 receives whole reduced iron powder and whole reduced iron powder is smelt steel from powdered iron ore restoring system (for example whole reduction circulating fluidized bed 5).
In addition, equipment of the present utility model and initial cost are saved in a large number.According to conservative calculating, can save equipment and initial cost more than 50%.In the technical process of the solar electrical energy generation hydrogen manufacturing steelmaking equipment that provides according to the utility model embodiment, know that logistics is fully simplified.In traditional Steel Plant, the logistics of each process procedure is very busy, and intensification cooling is for several times gone through in the iron content logistics, loses a large amount of physics heat.Have only a stove according to equipment of the present utility model, very compact, logistics is simply orderly, and has avoided the temperature loss of molten iron in transportation, is easy to realize directization of producing and control automatically.
Below in conjunction with specific embodiment further detailed description is done in the technical process of the production steel of solar electrical energy generation hydrogen manufacturing steelmaking equipment of the present utility model.
Embodiment 1: as shown in Figure 1, thick-line arrow is the technology trend of powdered iron ore, and thin-line arrow is the technology trend of gas.
At first, use abrasive dust device 1 that iron ore is worn into the powdered iron ore more than 325 orders below 100 orders.Then, powdered iron ore lifting gear 2 is promoted to this powdered iron ore the opening for feed of multistage cyclone preheater 3.Multistage cyclone preheater 3 uses the tail gas of prereduction circulating fluidized bed 4 that powdered iron ore is carried out preheating.
Then, use device of solar generating (group) 7 generating of 100,000 KW, Preparation of Hydrogen device 8 receives the electric energy that device of solar generating (group) 7 provide, and utilize this electric energy with 20,000 mark sides/hour speed prepare hydrogen.The hydrogen that first gas heater 9 provides Preparation of Hydrogen device 8 is heated to below 850 ℃.The hydrogen supercharging of 10 pairs of heating of gas pressurized device, and the hydrogen of supercharging is provided to the powdered iron ore restoring system.
Then, prereduction circulating fluidized bed 4 receives the powdered iron ore of multistage cyclone preheater 3 supplies and the hydrogen containing tail gas that whole reduction circulating fluidized bed 5 is discharged, and uses this hydrogen containing tail gas reduced iron breeze, obtains the prereduction iron powder.The hydrogen containing tail gas that prereduction circulating fluidized bed 4 is discharged is supplied to multistage cyclone preheater 3, so that powdered iron ore is carried out preheating.Eventually reduction circulating fluidized bed 5 receives the hydrogen of gentle body supercharging device 10 supplies of prereduction iron powder of prereduction circulating fluidized beds 4 supplies, and uses this hydrogen reducing prereduction iron powder, obtains degree of metalization and reaches whole reduced iron powder more than 90%.The hydrogen containing tail gas of reduction circulating fluidized bed 5 discharges eventually is supplied to prereduction circulating fluidized bed 4, to be used for the reduced iron breeze.The throughput of whole reduced iron powder is 33 tons/hour.
At last, electric arc furnace 6 receives whole reduced iron powders and whole reduced iron powder is smelt crude steel from whole reduction circulating fluidized bed 5, and the throughput of crude steel reaches 240,000 tons/year.Crude steel comprises 0.1～0.8% C, is no more than 0.05% Si and is no more than 0.05% Mn, namely obtains qualified molten steel through follow-up external refining and deoxidation alloying operation.
Simultaneously, use gas-cleaning installation 13 to receive the tail gas that multistage cyclone preheater 3 is discharged, this tail gas is purified, gas dewatering device 14 receives the tail gas that purifies, remove the water in this tail gas, and carry dry tail gas to first gas heater 9 of reducing medium supply system.
Embodiment 2:
Except device of solar generating (group) 7 generatings of using 1,000,000 KW, with 200,000 mark sides/hour speed prepare hydrogen, the throughput of whole reduced iron powder is 330 tons/hour, and the throughput of crude steel is outside 2,400,000 tons/year, produces steel according to the method identical with the method for embodiment 1.
Embodiment 3:
Except device of solar generating (group) 7 generatings of using 1,000 ten thousand KW, with 2,000,000 mark sides/hour speed prepare hydrogen, the throughput of whole reduced iron powder is 3300 tons/hour, and the throughput of crude steel is outside 2,400 ten thousand tons/year, produces steel according to the method identical with the method for embodiment 1.
Each embodiment adopts the mode of going forward one by one to describe in this specification sheets, and what each embodiment stressed is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments herein.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the wideest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. the reducing medium supply system of a solar electrical energy generation hydrogen manufacturing steelmaking equipment, it is characterized in that described reducing medium supply system comprises that device of solar generating (7) and the electric energy that utilizes described device of solar generating (7) to provide prepare the Preparation of Hydrogen device (8) of hydrogen.
2. reducing medium supply system according to claim 1 is characterized in that, described reducing medium supply system also comprises for the gas pressurized device (10) to described hydrogen supercharging.
3. reducing medium supply system according to claim 2 is characterized in that, described reducing medium supply system also comprises first gas heater (9) that is arranged between described Preparation of Hydrogen device (8) and the described gas pressurized device (10).
4. according to any described reducing medium supply system of claim 1-3, it is characterized in that described device of solar generating (7) is at least a in solar energy power generating, photo-thermal power generation, photochemistry Generate, Generation, Generator induction generating and the photo bio power generation assembly.
5. solar electrical energy generation hydrogen manufacturing steelmaking equipment, comprise the powdered iron ore supply system, the powdered iron ore restoring system be used for to be given reducing medium supply system that the powdered iron ore of described powdered iron ore restoring system provides reductant and is received iron powder and described iron powder is smelt the electric arc furnace (6) of steel from described powdered iron ore restoring system; It is characterized in that described reducing medium supply system is as any described reducing medium supply system of claim 1-4.
6. solar electrical energy generation hydrogen manufacturing steelmaking equipment according to claim 5 is characterized in that, described powdered iron ore supply system comprises:
Receive iron ore and described iron ore is worn into the abrasive dust device (1) of powdered iron ore;
Described powdered iron ore is carried out the multistage cyclone preheater (3) of preheating;
Described powdered iron ore is delivered to the powdered iron ore lifting gear (2) of described multistage cyclone preheater (3).
7. solar electrical energy generation hydrogen manufacturing steelmaking equipment according to claim 6, it is characterized in that, also comprise the gas outlet that is arranged on described multistage cyclone preheater (3), the exit that receives the tail gas of described multistage cyclone preheater (3) discharge and the gas-cleaning installation (13) that described tail gas is purified and be arranged on described gas-cleaning installation (13), be used for removing the water of the tail gas after described gas-cleaning installation (13) purifies, and carry the gas dewatering device (14) of dry tail gas to described reducing medium supply system.
8. solar electrical energy generation hydrogen manufacturing steelmaking equipment according to claim 6 is characterized in that described powdered iron ore restoring system comprises the circulating fluidized bed of at least two cascades; Comprise also between the Preparation of Hydrogen device (8) and at least one described circulating fluidized bed that is communicated in described reducing medium supply system that at least a portion of the oxygen of by-product provides the transport pipe to described circulating fluidized bed during with described Preparation of Hydrogen device (8) preparation hydrogen.
9. solar electrical energy generation hydrogen manufacturing steelmaking equipment according to claim 8, it is characterized in that described powdered iron ore restoring system comprises that the hydrogen that utilizes described reducing medium supply system to provide is reduced into the prereduction iron powder reduction circulating fluidized bed (5) eventually of whole reduced iron powder and uses the described tail gas of reduction circulating fluidized bed (5) eventually described powdered iron ore to be reduced into the prereduction circulating fluidized bed (4) of described prereduction iron powder.
10. solar electrical energy generation hydrogen manufacturing steelmaking equipment according to claim 9, it is characterized in that the preheating that described powdered iron ore restoring system also comprises the tail gas outlet that is arranged on described prereduction circulating fluidized bed (4) and described multistage cyclone preheater (3) exports with second gas heater (12) between the gas inlet and the tail gas that is arranged on described reduction circulating fluidized bed (5) eventually and the 3rd gas heater (11) between the gas inlet of the reduction of described prereduction circulating fluidized bed (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201763646U CN203159661U (en) | 2013-04-09 | 2013-04-09 | Solar power generating hydrogen-production steelmaking device and reductant supply system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201763646U CN203159661U (en) | 2013-04-09 | 2013-04-09 | Solar power generating hydrogen-production steelmaking device and reductant supply system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203159661U true CN203159661U (en) | 2013-08-28 |
Family
ID=49020860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201763646U Expired - Fee Related CN203159661U (en) | 2013-04-09 | 2013-04-09 | Solar power generating hydrogen-production steelmaking device and reductant supply system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203159661U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110423854A (en) * | 2019-08-30 | 2019-11-08 | 东北大学 | A kind of electric energy perhydro flash reduction direct steelmaking system and technique |
| CN111004883A (en) * | 2019-12-27 | 2020-04-14 | 周斌 | Solar energy molten reduced iron device and process |
| CN114941046A (en) * | 2022-03-28 | 2022-08-26 | 北京科技大学 | System and method for directly reducing iron ore by hydrogen based on circulating fluidized bed |
-
2013
- 2013-04-09 CN CN2013201763646U patent/CN203159661U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110423854A (en) * | 2019-08-30 | 2019-11-08 | 东北大学 | A kind of electric energy perhydro flash reduction direct steelmaking system and technique |
| CN110423854B (en) * | 2019-08-30 | 2020-11-06 | 东北大学 | Electric energy full-hydrogen flash reduction direct steelmaking system and process |
| WO2021035815A1 (en) * | 2019-08-30 | 2021-03-04 | 东北大学 | Electric energy full-hydrogen flash reduction direct steelmaking system and process |
| CN111004883A (en) * | 2019-12-27 | 2020-04-14 | 周斌 | Solar energy molten reduced iron device and process |
| CN114941046A (en) * | 2022-03-28 | 2022-08-26 | 北京科技大学 | System and method for directly reducing iron ore by hydrogen based on circulating fluidized bed |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101260448B (en) | Fusion reduction iron-smelting method for directly using concentrate powder | |
| CN103667571B (en) | System and method of fluidized direct reduction of iron ore concentrate powder | |
| CN113924372A (en) | Method and system for producing steel or molten iron-containing material with reduced emissions | |
| CN101386897B (en) | Iron-smelting technology of SDRF furnace | |
| CN102268504B (en) | Direct reduction process for producing sponge iron by using coke oven gas | |
| CN110423854A (en) | A kind of electric energy perhydro flash reduction direct steelmaking system and technique | |
| CN102443668A (en) | Method and equipment for producing steel | |
| CN110438277B (en) | Cyclone flash reduction direct steelmaking system and process | |
| JP2011528064A (en) | Methods and equipment for steelmaking with optimized energy and carbon dioxide emissions | |
| CN102010924B (en) | Method for producing directly reduced iron from coal | |
| CN101643810B (en) | Technology for producing sponge iron and high purity CO gas | |
| CN104673954A (en) | Direct-reduction ironmaking method and system for iron-containing mineral powder | |
| CN101906501A (en) | Direct steelmaking process by using fine ores, coal and oxygen | |
| CN102492843A (en) | Production method through combined treatment of laterite by direct current electric furnace | |
| CN104870659A (en) | Molten iron manufacturing apparatus and molten iron manufacturing method | |
| CN101724726A (en) | Method and device for ironmaking by smelting | |
| CN203159661U (en) | Solar power generating hydrogen-production steelmaking device and reductant supply system thereof | |
| CN203159651U (en) | Biomass power generation/hydrogen production/steel making apparatus and reducing medium supply system thereof | |
| CN107151721A (en) | A kind of Lurgi gasifying gas produces the system and method for DRI through dual turn over metaplasia | |
| JP4427295B2 (en) | Reducing gas desulfurization method, blast furnace operating method and reducing gas utilization method | |
| CN205133650U (en) | System for iron -smelting of gas making flash | |
| CN109971906A (en) | A kind of restoring method of ultralow carbon emission production sponge iron | |
| CN209798009U (en) | System for adopt hydrogen production hot sponge iron | |
| CN203079999U (en) | Device using fine ore and coal oxygen for direct steel-making | |
| CN203159652U (en) | Shale gas power generation hydrogen production steelmaking unit and reducing medium supply system thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20160409 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |