CN102498190A - Process for producing ferro coke - Google Patents
Process for producing ferro coke Download PDFInfo
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- CN102498190A CN102498190A CN2010800408932A CN201080040893A CN102498190A CN 102498190 A CN102498190 A CN 102498190A CN 2010800408932 A CN2010800408932 A CN 2010800408932A CN 201080040893 A CN201080040893 A CN 201080040893A CN 102498190 A CN102498190 A CN 102498190A
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- iron
- iron ore
- coke
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/04—Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition
- C10B57/06—Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition containing additives
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/08—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form in the form of briquettes, lumps and the like
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/04—Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition
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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
- C21B13/0066—Preliminary conditioning of the solid carbonaceous reductant
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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
- C22B1/242—Binding; Briquetting ; Granulating with binders
- C22B1/244—Binding; Briquetting ; Granulating with binders organic
- C22B1/245—Binding; Briquetting ; Granulating with binders organic with carbonaceous material for the production of coked agglomerates
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- Chemical & Material Sciences (AREA)
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- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Coke Industry (AREA)
Abstract
A process for producing molded ferro coke for metallurgy is provided in which ferro coke having a relatively small particle diameter and high strength can be produced, while maintaining a predetermined reducibility index, by optimizing the particle size of the iron ore to be used as a starting material. The process for ferro coke production is characterized by mixing coal with iron ore having a maximum particle diameter of 1-2 mm, molding the mixture to produce molded objects, and carbonizing the molded objects. It is preferable that the iron ore have an iron content of 63 mass% or less, the proportion of the iron ore to the sum of the coal and the iron ore be 40 mass% or less, and the iron ore be particles which have passed through a sieve having an opening size of 1-2 mm.
Description
Technical field
The present invention relates to that mixture to coal and iron ore carries out moulding, destructive distillation and the method for manufacture of the iron coke made.
Background technology
In order to carry out the operation of blast furnace efficiently, pit kiln that will be through case stove formula carries out coke that destructive distillation makes to coal and packs in the blast furnace.Pack into coke in the blast furnace has the effect that is used to make the liner (ス ペ one サ one) that the ventilation in the blast furnace improves, as the effect of reducing material, as the effect of thermal source etc.In recent years, known following technology: the viewpoint that improves from the reactivity that makes coke, compound iron ore and carry out moulding, destructive distillation in coal is used iron coke thereby obtain metallurgy.
In recent years, developed the continous way moulding coke manufacturing process (for example) of using vertical gas retort, also the manufacturing that utilizes same vertical gas retort has been studied about iron coke with reference to non-patent literature 1.For continous way moulding coke manufacturing process; Use is not that the vertical shaft furnace that is made up of silica brick is as gas retort by refractory brick; With the coal cold-forming for predetermined size after; Be encased in the vertical shaft furnace,, manufacture the formed coke charcoal through using circulating thermal medium gas to heat and moulded coal being carried out destructive distillation.Moulded coal is formed into the formed coke charcoal when in vertical shaft furnace, descending lentamente, cools off through the cooling gas from the bottom air-supply of vertical shaft furnace, and outside stove, discharges.Moulded coal is worn and efflorescence in the decline process, therefore, requires high tear strength.In the exploitation of iron coke, pay attention to the I type intensity (30 circles, 16mm index) of expression tear strength too.In addition, use above-mentioned vertical gas retort to carry out destructive distillation and the iron coke made when the raw material as blast furnace uses, the reaction load of comparing in the blast furnace with common coke is big, therefore, is preferably high-intensity iron coke.Below, will be recited as " case oven coke " by the common metallurgical coke of case stove formula pit kiln manufacturing.
As one of factor of the intensity that influences iron coke, can enumerate the granularity of iron ore.Following main points in patent documentation 1, have been put down in writing: make the iron ore make particle diameter 10mm below moulding iron coke with respect to the 92cc size of the maximum cooperation 75% of total amount; And think more than making particle diameter 2mm and the iron ore below the 10mm when cooperating 6～65 weight % with respect to total amount, in the moulding iron coke of iron ore is housed intensity can access and keep.In addition, according to patent documentation 2, because the reductibility in iron coke acceleration of sintering ore deposit, therefore, iron coke is mixed with agglomerate (iron ore) and is encased in the blast furnace.
The prior art document
Patent documentation
Patent documentation 1: japanese kokai publication hei 08-012975 communique
Patent documentation 2: TOHKEMY 2006-28594 communique
Non-patent literature
Non-Patent Document 1: Japanese Iron and Steel Institute, "Continuous molding manufacturing technology co a ku su Full Research Report" 1978-1986
Summary of the invention
Invent problem to be solved
In the time of in blast furnace that iron coke is packed into, the Intake Quantity of case oven coke reduces, and therefore, guarantees that the air permeability of blast furnace becomes important.Thereby the iron coke on blast furnace top is preferably dimensioned to be and agglomerate size (about 6cc) much at one, and the 92cc of record is excessive in the patent documentation 1.Can think that the upper limit of the size of the iron ore that under the situation of making littler iron coke, cooperates becomes littler.And, the particle diameter of iron ore hour, the reduction of iron ore is also carried out easily, therefore thinks, uses the iron ore of which kind of particle diameter extremely important as the iron coke raw material.
Usually, move into ironmaking in blocky iron ore, sieve with the sieve of the about 10mm of sieve aperture, the iron ore above the big sieve of particle diameter is carried to blast furnace, the undersized iron ore that particle diameter is little is carried to sintering factory.When iron coke is made in undersized iron ore utilization used raw material, in coal, cooperate the iron ore below the particle diameter 10mm.According to being directly to utilize undersized iron ore or it is ground into suitable size back as raw material, the equipment formation of manufacturing iron coke, installation cost, operational cost etc. change.Therefore, the influence that needs research iron ore size that iron coke quality (intensity, reduction ratio) is brought.Contain the iron coke (big or small 6cc, median size 22mm) of the iron ore of particle diameter 10mm, inside has big textural defect, and intensity might reduce.And can think, when the particle diameter of iron ore is big, compare, even reduction ratio also reduces under identical destructive distillation condition with the situation that particle diameter is little.
The objective of the invention is to, a kind of metallurgical method of manufacture with the moulding iron coke is provided, wherein, when making the less iron coke of particle diameter ratio, suit, can when keeping the target reduction ratio, make high-intensity iron coke through making granularity as the iron ore of raw material.
The method that is used to deal with problems
To achieve these goals, the present invention provides a kind of method of manufacture of iron coke, wherein, is that the iron ore of 1～2mm mixes and makes forming composition with coal and maximum particle diameter, and this forming composition is carried out destructive distillation.
In the method for manufacture of above-mentioned iron coke, preferred above-mentioned iron ore has the iron containing ratio below the 63 quality %.During iron containing ratio below 63 quality %, even increase the particle diameter of iron ore, the metallic iron that also can not generate with the reduction by iron ore is that initial point cracks.The iron containing ratio of above-mentioned iron ore is 55～63 quality % more preferably.
Preferred above-mentioned iron ore has the fit rate of the iron ore below the 40 quality % with respect to the total amount of coal and iron ore.The fit rate of iron ore is 40 quality % when following, in forming composition, can guarantee the bonding component of coal, and intensity can not reduce.The fit rate of above-mentioned iron ore is 1～40 quality % more preferably.Most preferably be 10～40 quality %.
Screen underflow after above-mentioned iron ore is preferably sieve with sieve aperture 1～2mm and sieves.Above-mentioned coal preferably has the particle diameter below the 3mm.In order to improve the intensity of iron coke, the particle diameter below the 2mm more preferably.
In the method for manufacture of above-mentioned iron coke, the manufacturing of above-mentioned forming composition preferably includes: with coal, maximum particle diameter is that iron ore and the tackiness agent of 1～2mm mixes and make forming composition.Preferred above-mentioned tackiness agent has the addition of 4～6 quality % with respect to the total amount of coal and iron ore.
Above-mentioned iron coke preferably has the size of 0.5～25cc.5～8cc more preferably.This be because, in order to ensure the air permeability of blast furnace, expectation forms and the agglomerate 6cc of size much at one.
The invention effect
According to the present invention, can when keeping the target reduction ratio, make high-intensity iron coke.
Description of drawings
Fig. 1 is the figure of relation of green strength and the iron ore particle diameter of expression forming composition.
Fig. 2 is the figure of relation of reduction ratio and the iron ore particle diameter of expression destructive distillation aftershaping thing.
Fig. 3 is the figure of relation of intensity and the iron ore particle diameter of expression destructive distillation aftershaping thing.
Fig. 4 is the figure of the relation of intensity after expression iron ore fit rate and the destructive distillation.
Embodiment
In this embodiment, the forming composition of coal and iron ore is carried out destructive distillation and when making the iron coke of the little about 5cc～about 8cc of particle diameter, using maximum particle diameter is the iron ore of 1～2mm scope, mixes the manufacturing forming composition with coal.Need to prove that for example maximum particle diameter is that the iron ore of 1mm is meant the undersized iron ore that uses the sieve of sieve aperture 1mm to carry out screening the iron ore after pulverizing, be designated as below the particle diameter 1mm (1mm).Therefore, as the iron ore that uses in this embodiment, preferably: directly use the raw material iron ore, or sieving with the sieve of sieve aperture 1～2mm after the pulverizing screen underflow after using screening.
To be broken to particle diameter 0.25mm as the iron ore powder that the forming composition raw material uses when following, as long as heavy addition tackiness agent not, forming composition intensity will reduce.Therefore, preferably iron ore powder is not broken to below the particle diameter 0.25mm.On the other hand, if the iron ore particle diameter is below the 2mm, then can make the reduction ratio of the iron coke after the forming composition destructive distillation is more than 80%.In addition, if the iron ore particle diameter be 1mm with below 3mm, then can keep the barrate strength of the iron coke after the forming composition destructive distillation enough high.Therefore, through use with particle size adjustment to 1mm with down to the iron ore below the 2mm as raw material, can access all high iron coke of reduction ratio, barrate strength.
Under the situation of using the iron containing ratio above the iron ore of 63 quality %, if the iron ore particle diameter is big, the metallic iron that then generates with the reduction by iron ore easily is that initial point cracks, and therefore, preferably using the iron containing ratio is the iron ores below the 63 quality %.During iron containing ratio below 63 quality %, even increase the particle diameter of iron ore, the metallic iron that also can not generate with the reduction by iron ore is that initial point cracks.The iron containing ratio of above-mentioned iron ore is 55～63 quality % more preferably.Under the situation of using the iron containing ratio above the iron ore of 63 quality %, preferred iron ore particle diameter is no more than 1mm.
As the coal that the forming composition raw material uses, preferred powder is broken to back below the particle diameter 3mm and uses.When particle diameter surpasses 3mm, cause the welding between the forming composition in the destructive distillation easily, and exist the intensity of the iron coke after the forming composition destructive distillation not have the situation of raising.From the aspect of the intensity that improves iron coke, more preferably the particle diameter of coal is below the 2mm.Coal preferably uses the coal that is combined with little caking coal, noncaking coal.
Iron ore preferably cooperates below the 40 quality % with respect to the raw material total amount total amount of iron ore (coal with).The fit rate of above-mentioned iron ore is 1～40 quality % more preferably.Most preferably be 10～40 quality %.When the iron ore fit rate surpassed 40 quality %, the bonding component of coal relatively reduced in the forming composition, along with the reduction of iron ore, and the carbon consumption in the iron coke, the inner porous materialization of iron coke, therefore, intensity significantly reduces.
When making forming composition, preferably in coal and iron ore, add tackiness agent.The addition of tackiness agent is preferably 4～6 quality % with respect to the total amount of coal and iron ore.
The forming composition of coal and iron ore, for example mixing through coal, iron ore and tackiness agent being carried out with high-speed mixer, and use shaper to make.Use gas retort etc. carries out destructive distillation to forming composition, makes iron coke.
As raw material, carry out the manufacturing test of iron coke with coal and iron ore.The condition of molding of iron coke material forming thing is shown in table 1.
Table 1
Condition of molding
| Forming pressure | ?4～5t/cm |
| The roller size | ?650mmφ×104mm |
| The roller SFM | ?0.2m/s |
| The cup capacity | ?30mm×25mm×18mm、6cc |
| The mixing machine temperature | ?140～160℃ |
When making the forming composition moulding, totally add tackiness agent 6 quality % with respect to coal, iron ore raw materials quality, descended mixing about 2 minutes at 140～160 ℃ with high-speed mixer.Use two roll shape shapers, make briquet by the raw material after mixing.The roller of shaper is of a size of 650mm φ * 104mm, at SFM 0.2m/ second, line pressure 4～5t/cm compacted under.Forming composition is of a size of 30mm * 25mm * 18mm (6cc), is shaped as avette.
The material condition of forming composition is shown in table 2.
Table 2
Material condition
Coal is pulverized with the mode that whole particle diameters reach below the 3mm.Coal is cooperated with little caking coal and noncaking coal.Particle diameter about iron ore; Through the screening after pulverizing, be prepared into respectively below the 0.1mm (0.1mm), below the 0.25mm (0.25mm), below the 0.5mm (0.5mm), below the 1.0mm (1.0mm), below the 1.5mm (1.5mm), below the 2.0mm (2.0mm), below the 2.5mm (2.5mm), below the 3.0mm (3.0mm).Iron ore is coupled in the coal with the mode that reaches 30 quality % with respect to the raw material total amount.Prepare 4 kinds of different iron ores of iron containing ratio, be used for test.The iron containing ratio of employed each iron ore is shown in table 3.
Table 3
| The iron ore kind | Iron containing ratio (mass%) |
| Ore A | 57.6 |
| Ore B | 61.5 |
| Ore C | 62.8 |
| Ore D | 65.5 |
As an example, the size-grade distribution of employed iron ore A is shown in table 4.
Table 4
| -1mm | -1.5mm | -2mm | |
| -0.075 | 15.1(％) | 11.2 | 6.5 |
| 0.075～0.15 | 10.7 | 8.7 | 5.1 |
| 0.15～0.25 | 11.2 | 9.4 | 5.4 |
| 0.25～0.5 | 26.7 | 21.2 | 14 |
| 0.5～1 | 35.9 | 33.9 | 22.4 |
| 1～2 | 0.4 | 15.6 | 44.6 |
In the retort of length and width 300mm, high 400mm, fill the 3kg forming composition,, make iron coke 1000 ℃ of following destructive distillation of furnace wall temperature 6 hours.
The relation of intensity of forming composition shown in Fig. 1 (green strength) and iron ore particle diameter.For forming composition intensity, use I type drum test device (internal diameter 130mm * 700mm's is cylindric), according to estimating with the survival rate more than the 16mm behind rotating speed rotation 30 circles of 1 minute 20 circle.Under the situation of any one ore in using ore A～D, iron ore all is crushed to 0.25mm when following, forming composition intensity reduces.Can think that when pulverizing iron ore thin, particle external surface is long-pending to rise, necessary amount of binder increases, but in this experiment, makes an experiment with certain amount of binder, therefore, obtains such result.The iron ore particle diameter is 0.5mm when following, if the ore kind does not change, then not observe big difference aspect the intensity of forming composition down to 3mm.
The reduction ratio after the destructive distillation of forming composition shown in Fig. 2 and the relation of iron ore particle diameter.The iron ore particle diameter is 0.5mm when following, and reduction ratio is almost certain, but when being its above particle diameter, reduction ratio reduces gradually, and being that 3mm is general when following at the iron ore particle diameter reduces by 10%.Supposition is because the cause that the reduction of iron ore centre portions reduces.If making the target reduction ratio is more than 80%, then preferably under the situation of ore kind arbitrarily the iron ore particle diameter be below the 2mm.
The intensity after the destructive distillation of forming composition shown in Fig. 3 and the relation of iron ore particle diameter.For intensity after the destructive distillation, use the drum test device, estimate according to the survival rate more than the 6mm behind rotation 150 circles.The iron containing ratio is ore A, B, the C below the 63 quality %, is 0.5mm when following at the iron ore particle diameter, and intensity reduces.Can think when the iron ore particle diameter diminishes that the porous materialization (void content rising) that the coke part takes place along with the carrying out of reduction of iron ore is one of reason.Can know that making after the destructive distillation target value of intensity (barrate strength) is 82 when above, if make the iron ore particle diameter all be 1mm with below 3mm, then reach the target value of barrate strength.On the other hand, be under the situation of ore D of 65.5 quality % at the iron containing ratio, when the iron ore particle diameter surpasses 1mm, observe intensity and reduce.Can know the particle of the flat pattern that has the top point when observing the outward appearance after the pulverizing of iron ore D, infer when the iron ore particle diameter is big that because the bump during strength trial, the metallic iron that generates with the reduction by iron ore is that initial point cracks.Can know, be under the situation of the ore below the 63 quality % at the iron containing ratio, is 1mm when following, to keep the target reduction ratio down to 2mm at the iron ore particle diameter, and intensity also reaches target value.
The relation of intensity after the iron ore fit rate of A of ore shown in Fig. 4 and ore C and the destructive distillation.Till iron ore fit rate 40 quality %, along with the cooperation ratio rising of iron ore, intensity reduces lentamente after the destructive distillation.On the other hand, when the iron ore fit rate surpassed 40 quality %, observing significantly, intensity reduced.Can think that the reason that intensity reduced when the iron ore fit rate rose is: the bonding component of coal reduces; Along with the reduction of iron ore, the carbon consumption in the iron coke, thereby the inner porous materialization of iron coke.
Claims (12)
1. the method for manufacture of an iron coke wherein, is that the iron ore of 1～2mm mixes and makes forming composition with coal and maximum particle diameter, and this forming composition is carried out destructive distillation.
2. the method for manufacture of iron coke according to claim 1, wherein, said iron ore has the iron containing ratio below the 63 quality %.
3. the method for manufacture of iron coke according to claim 1, wherein, the iron containing ratio of said iron ore is 55～63 quality %.
4. the method for manufacture of iron coke according to claim 1, wherein, said iron ore has the fit rate of the iron ore below the 40 quality % with respect to the total amount of coal and iron ore.
5. the method for manufacture of iron coke according to claim 4, wherein, the fit rate of said iron ore is 1～40 quality %.
6. the method for manufacture of iron coke according to claim 5, wherein, the fit rate of said iron ore is 10～40 quality %.
7. the method for manufacture of iron coke according to claim 1, wherein, said iron ore is the screen underflow of the sieve with sieve aperture 1～2mm after sieving.
8. the method for manufacture of iron coke according to claim 1, wherein, said coal has the particle diameter below the 3mm.
9. the method for manufacture of iron coke according to claim 1, wherein, the manufacturing of said forming composition comprises: with coal, maximum particle diameter is that iron ore and the tackiness agent of 1～2mm mixes and make forming composition.
10. the method for manufacture of iron coke according to claim 9, wherein, said tackiness agent has the addition of 4～6 quality % with respect to the total amount of coal and iron ore.
11. the method for manufacture of iron coke according to claim 1, wherein, said iron coke has the size of 0.5～25cc.
12. the method for manufacture of iron coke according to claim 1, wherein, said iron coke is of a size of 5～8cc.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009212822 | 2009-09-15 | ||
| JP2009-212822 | 2009-09-15 | ||
| JP2010-201702 | 2010-09-09 | ||
| JP2010201702A JP2011084734A (en) | 2009-09-15 | 2010-09-09 | Method for producing ferro coke |
| PCT/JP2010/066272 WO2011034195A1 (en) | 2009-09-15 | 2010-09-14 | Process for producing ferro coke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102498190A true CN102498190A (en) | 2012-06-13 |
Family
ID=43758792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010800408932A Pending CN102498190A (en) | 2009-09-15 | 2010-09-14 | Process for producing ferro coke |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20120144734A1 (en) |
| EP (1) | EP2463356A4 (en) |
| JP (1) | JP2011084734A (en) |
| KR (2) | KR20120035946A (en) |
| CN (1) | CN102498190A (en) |
| BR (1) | BR112012005754A2 (en) |
| WO (1) | WO2011034195A1 (en) |
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| CN103756701A (en) * | 2014-01-21 | 2014-04-30 | 河北联合大学 | High-reactivity coke and production method thereof |
| CN106635067A (en) * | 2016-11-24 | 2017-05-10 | 武汉科思瑞迪科技有限公司 | Shaft furnace process for producing iron coke |
| CN106916599A (en) * | 2017-02-08 | 2017-07-04 | 中冶南方工程技术有限公司 | A kind of iron coke process units and method |
| CN107709523A (en) * | 2015-06-24 | 2018-02-16 | 杰富意钢铁株式会社 | The manufacture method of iron coke |
| CN107735481A (en) * | 2015-06-24 | 2018-02-23 | 杰富意钢铁株式会社 | The manufacture method of iron coke article shaped |
| CN109097515A (en) * | 2018-08-31 | 2018-12-28 | 攀钢集团攀枝花钢铁研究院有限公司 | The method of iron coke and its iron coke of preparation are prepared using high-titanium type vanadium titanium ore sinter return fine |
| CN111944937A (en) * | 2019-05-14 | 2020-11-17 | 宝山钢铁股份有限公司 | Preparation method of carbon-iron composite furnace charge |
| CN113736932A (en) * | 2020-05-29 | 2021-12-03 | 宝山钢铁股份有限公司 | Preparation method of carbon-iron composite furnace charge |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6179732B2 (en) * | 2014-10-20 | 2017-08-16 | Ｊｆｅスチール株式会社 | Method of molding coal or a mixture of coal and metal oxide |
| KR101910405B1 (en) * | 2015-02-06 | 2018-10-22 | 제이에프이 스틸 가부시키가이샤 | Ferrocoke manufacturing method |
| JP6384598B2 (en) | 2016-02-24 | 2018-09-05 | Ｊｆｅスチール株式会社 | Ferro-coke manufacturing method |
| CN110491454B (en) * | 2019-08-09 | 2022-11-18 | 中冶赛迪工程技术股份有限公司 | A blast furnace smelting cost management method, system and computer storage medium |
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| JPH0665579A (en) * | 1992-08-19 | 1994-03-08 | Nippon Steel Corp | Raw material blending method for forming coal for the production of forming coke for metallurgy |
| CN1243885A (en) * | 1999-08-20 | 2000-02-09 | 方新贵 | Spheroidized iron-coke ore solidified rapidly at middle temp and its apparatus |
| JP2007169603A (en) * | 2005-11-28 | 2007-07-05 | Jfe Steel Kk | Method for producing ferrocoke and sintered ore |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3487912B2 (en) * | 1994-07-04 | 2004-01-19 | 新日本製鐵株式会社 | Molded coke containing iron ore, method for producing molded coke, and method for operating blast furnace |
| JP4487564B2 (en) * | 2002-12-25 | 2010-06-23 | Ｊｆｅスチール株式会社 | Ferro-coke manufacturing method |
| JP2005053986A (en) * | 2003-08-07 | 2005-03-03 | Nippon Steel Corp | Method for producing ferro-coke for blast furnace |
| JP4556525B2 (en) | 2004-07-16 | 2010-10-06 | Ｊｆｅスチール株式会社 | Blast furnace operation method |
| JP2007119601A (en) * | 2005-10-28 | 2007-05-17 | Jfe Steel Kk | Method for producing ferrocoke |
| JP4892929B2 (en) * | 2005-11-01 | 2012-03-07 | Ｊｆｅスチール株式会社 | Ferro-coke manufacturing method |
| JP4935133B2 (en) * | 2006-03-17 | 2012-05-23 | Ｊｆｅスチール株式会社 | Ferro-coke and method for producing sintered ore |
-
2010
- 2010-09-09 JP JP2010201702A patent/JP2011084734A/en not_active Withdrawn
- 2010-09-14 EP EP10817308.9A patent/EP2463356A4/en not_active Withdrawn
- 2010-09-14 KR KR1020127004912A patent/KR20120035946A/en active Application Filing
- 2010-09-14 BR BR112012005754A patent/BR112012005754A2/en not_active Application Discontinuation
- 2010-09-14 US US13/391,660 patent/US20120144734A1/en not_active Abandoned
- 2010-09-14 WO PCT/JP2010/066272 patent/WO2011034195A1/en active Application Filing
- 2010-09-14 CN CN2010800408932A patent/CN102498190A/en active Pending
- 2010-09-14 KR KR1020147024518A patent/KR20140130458A/en not_active Application Discontinuation
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| JPH0665579A (en) * | 1992-08-19 | 1994-03-08 | Nippon Steel Corp | Raw material blending method for forming coal for the production of forming coke for metallurgy |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103756701A (en) * | 2014-01-21 | 2014-04-30 | 河北联合大学 | High-reactivity coke and production method thereof |
| CN103756701B (en) * | 2014-01-21 | 2015-11-25 | 河北联合大学 | Hyperergy coke and production method thereof |
| CN107709523A (en) * | 2015-06-24 | 2018-02-16 | 杰富意钢铁株式会社 | The manufacture method of iron coke |
| CN107735481A (en) * | 2015-06-24 | 2018-02-23 | 杰富意钢铁株式会社 | The manufacture method of iron coke article shaped |
| US11111441B2 (en) | 2015-06-24 | 2021-09-07 | Jfe Steel Corporation | Method for producing ferrocoke |
| CN106635067A (en) * | 2016-11-24 | 2017-05-10 | 武汉科思瑞迪科技有限公司 | Shaft furnace process for producing iron coke |
| CN106916599A (en) * | 2017-02-08 | 2017-07-04 | 中冶南方工程技术有限公司 | A kind of iron coke process units and method |
| CN109097515A (en) * | 2018-08-31 | 2018-12-28 | 攀钢集团攀枝花钢铁研究院有限公司 | The method of iron coke and its iron coke of preparation are prepared using high-titanium type vanadium titanium ore sinter return fine |
| CN111944937A (en) * | 2019-05-14 | 2020-11-17 | 宝山钢铁股份有限公司 | Preparation method of carbon-iron composite furnace charge |
| CN113736932A (en) * | 2020-05-29 | 2021-12-03 | 宝山钢铁股份有限公司 | Preparation method of carbon-iron composite furnace charge |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2463356A4 (en) | 2014-06-11 |
| KR20140130458A (en) | 2014-11-10 |
| KR20120035946A (en) | 2012-04-16 |
| WO2011034195A1 (en) | 2011-03-24 |
| JP2011084734A (en) | 2011-04-28 |
| US20120144734A1 (en) | 2012-06-14 |
| BR112012005754A2 (en) | 2016-02-16 |
| EP2463356A1 (en) | 2012-06-13 |
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