RU2010143867A - METHOD FOR PRODUCING IRON PELLETS - Google Patents
METHOD FOR PRODUCING IRON PELLETS Download PDFInfo
- Publication number
- RU2010143867A RU2010143867A RU2010143867/02A RU2010143867A RU2010143867A RU 2010143867 A RU2010143867 A RU 2010143867A RU 2010143867/02 A RU2010143867/02 A RU 2010143867/02A RU 2010143867 A RU2010143867 A RU 2010143867A RU 2010143867 A RU2010143867 A RU 2010143867A
- Authority
- RU
- Russia
- Prior art keywords
- chamber
- gas
- iron ore
- gaseous fuel
- dehydration
- Prior art date
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract 18
- 229910052742 iron Inorganic materials 0.000 title claims abstract 9
- 239000008188 pellet Substances 0.000 title claims abstract 9
- 238000004519 manufacturing process Methods 0.000 title claims abstract 3
- 230000018044 dehydration Effects 0.000 claims abstract 12
- 238000006297 dehydration reaction Methods 0.000 claims abstract 12
- 239000000446 fuel Substances 0.000 claims abstract 8
- 239000007789 gas Substances 0.000 claims abstract 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract 8
- 239000000571 coke Substances 0.000 claims abstract 4
- 238000010304 firing Methods 0.000 claims abstract 4
- 238000000034 method Methods 0.000 claims abstract 4
- 239000003345 natural gas Substances 0.000 claims abstract 4
- 239000003209 petroleum derivative Substances 0.000 claims abstract 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract 2
- 238000001035 drying Methods 0.000 claims abstract 2
- 238000010438 heat treatment Methods 0.000 claims abstract 2
- 239000000203 mixture Substances 0.000 claims abstract 2
- 239000001301 oxygen Substances 0.000 claims abstract 2
- 229910052760 oxygen Inorganic materials 0.000 claims abstract 2
Classifications
-
- 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
- C22B1/16—Sintering; Agglomerating
- C22B1/22—Sintering; Agglomerating in other sintering apparatus
-
- 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
- C22B1/2413—Binding; Briquetting ; Granulating enduration of pellets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories or equipment specially adapted for rotary-drum furnaces
- F27B7/2016—Arrangements of preheating devices for the charge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories or equipment specially adapted for rotary-drum furnaces
- F27B7/38—Arrangements of cooling devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
1. Способ производства железорудных окатышей с использованием колосниковой обжиговой системы, включающий последовательный нагрев железорудных окатышей в сушильной камере, обезвоживающей камере и камере предварительного нагрева, в то время как железорудные окатыши перемещаются на подвижной решетке; ! и последующий обжиг железорудных окатышей в ротационной печи, включающей в себя печную горелку, причем в обезвоживающую камеру нагнетается газообразное топливо через множество горелок, установленных в пределах от положения, соответствующего 1/3 всей длины обезвоживающей камеры, до положения, соответствующего 0,98 всей длины обезвоживающей камеры относительно входа обезвоживающей камеры, служащего точкой, от которой отмеряется вся длина, при этом газообразное топливо сжигается с кислородом, остающимся в отходящем газе камеры предварительного нагрева, вводимым в обезвоживающую камеру для увеличения температуры атмосферы обезвоживающей камеры кроме области вблизи входа обезвоживающей камеры. ! 2. Способ по п.1, в котором направление, в котором нагнетают газообразное топливо, по существу, ортогонально к направлению, в котором отходящий газ камеры предварительного нагрева вводят в обезвоживающую камеру. ! 3. Способ по п.1 или 2, в котором газообразное топливо представляет собой коксовый газ, природный газ, нефтяной газ или газовую смесь двух или нескольких газов - коксового газа, природного газа, и нефтяного газа. 1. A method for producing iron ore pellets using a grate firing system, comprising sequentially heating iron ore pellets in a drying chamber, a dewatering chamber and a preheating chamber, while iron ore pellets are moved on a movable grate; ! and subsequent firing of iron ore pellets in a rotary kiln including a furnace burner, wherein gaseous fuel is injected into the dehydration chamber through a plurality of burners installed ranging from a position corresponding to 1/3 of the entire length of the dewatering chamber to a position corresponding to 0.98 of the entire length dehydration chamber relative to the inlet of the dehydration chamber, serving as a point from which the entire length is measured, while gaseous fuel is burned with oxygen remaining in the exhaust gas of the pre-chamber heat introduced into the dehydration chamber to increase the temperature of the atmosphere of the dehydration chamber except for the area near the inlet of the dehydration chamber. ! 2. The method according to claim 1, in which the direction in which gaseous fuel is pumped is substantially orthogonal to the direction in which the exhaust gas of the preheating chamber is introduced into the dewatering chamber. ! 3. The method according to claim 1 or 2, wherein the gaseous fuel is coke oven gas, natural gas, petroleum gas, or a gas mixture of two or more gases — coke oven gas, natural gas, and petroleum gas.
Claims (3)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008084178A JP4355748B2 (en) | 2008-03-27 | 2008-03-27 | Method for producing iron ore pellets |
| JP2008-084178 | 2008-03-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2010143867A true RU2010143867A (en) | 2012-05-10 |
| RU2459878C2 RU2459878C2 (en) | 2012-08-27 |
Family
ID=41113490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2010143867/02A RU2459878C2 (en) | 2008-03-27 | 2009-03-09 | Method of producing iron ore pellets |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP4355748B2 (en) |
| CN (1) | CN101932738B (en) |
| BR (1) | BRPI0908190B1 (en) |
| RU (1) | RU2459878C2 (en) |
| UA (1) | UA94202C2 (en) |
| WO (1) | WO2009119291A1 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101514869B1 (en) | 2009-10-09 | 2015-04-23 | 미쓰비시 마테리알 가부시키가이샤 | Conductive coating film-forming agent, production method for same, and molded article using same |
| CN102175073B (en) * | 2011-02-24 | 2012-08-08 | 中冶北方工程技术有限公司 | Iron ore concentrate drying device and method for pelletizing |
| KR101424913B1 (en) * | 2013-01-31 | 2014-08-01 | 현대제철 주식회사 | Apparatus for iron ore pellet manufacturing simulation |
| CN104748558B (en) * | 2013-12-27 | 2017-01-18 | 中冶长天国际工程有限责任公司 | Tailing preheating device of reduction kiln |
| JP6367772B2 (en) * | 2015-07-29 | 2018-08-01 | 株式会社神戸製鋼所 | Sintered pellet manufacturing equipment |
| JP6368693B2 (en) * | 2015-07-29 | 2018-08-01 | 株式会社神戸製鋼所 | Sintered pellet manufacturing equipment |
| BR102015027270A2 (en) * | 2015-10-27 | 2017-05-02 | Vale S/A | process for reducing ore moisture in conveyor belts and transfer kicks; transfer kick for ore transport; ore conveyor belt |
| JP6578240B2 (en) * | 2016-04-28 | 2019-09-18 | 株式会社神戸製鋼所 | Method for reducing the amount of sulfur oxides contained in exhaust gas from iron ore pellet manufacturing equipment |
| US10995991B2 (en) * | 2017-09-27 | 2021-05-04 | Andritz Inc. | Process for reducing ringing in lime kilns |
| CN110487065B (en) * | 2019-09-26 | 2024-06-11 | 中冶北方（大连）工程技术有限公司 | Chain grate machine preheating two-stage hot air supply system and temperature regulation method |
| JP7678311B2 (en) * | 2021-08-30 | 2025-05-16 | 日本製鉄株式会社 | Manufacturing method for fired iron ore pellets |
| US20240159393A1 (en) | 2021-09-09 | 2024-05-16 | Fct Holdings Pty Ltd | Low nox emission burner and operating method for reducing nox formation applied to iron ore pellet sintering and/or enduring method |
| JP7626240B2 (en) * | 2022-09-02 | 2025-02-04 | Ｊｆｅスチール株式会社 | How iron ore pellets are made |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA977974A (en) * | 1972-10-04 | 1975-11-18 | Robert F. Cnare | Process for heat treating magnetite with heat recuperation from cooling final product |
| JPS52156104A (en) * | 1976-06-22 | 1977-12-26 | Kobe Steel Ltd | Production of pellets |
| JPH11325740A (en) * | 1998-05-08 | 1999-11-26 | Kobe Steel Ltd | Grate kiln iron ore pellet firing device |
| JPH11337264A (en) * | 1998-05-27 | 1999-12-10 | Daido Steel Co Ltd | Rotary hearth furnace |
| JP2005060762A (en) * | 2003-08-11 | 2005-03-10 | Kobe Steel Ltd | Method and apparatus for manufacturing iron ore pellet |
| JP4233047B2 (en) * | 2004-10-22 | 2009-03-04 | 株式会社神戸製鋼所 | Structure of burner for pelletizing furnace |
| CN1621541A (en) * | 2004-12-14 | 2005-06-01 | 白俊卿 | Process for preparing pellet from high-grade ironstone by using direct dry method |
-
2008
- 2008-03-27 JP JP2008084178A patent/JP4355748B2/en not_active Expired - Fee Related
-
2009
- 2009-03-09 RU RU2010143867/02A patent/RU2459878C2/en not_active IP Right Cessation
- 2009-03-09 WO PCT/JP2009/054431 patent/WO2009119291A1/en not_active Ceased
- 2009-03-09 BR BRPI0908190A patent/BRPI0908190B1/en not_active IP Right Cessation
- 2009-03-09 CN CN200980103850.1A patent/CN101932738B/en not_active Expired - Fee Related
- 2009-03-09 UA UAA201012709A patent/UA94202C2/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JP4355748B2 (en) | 2009-11-04 |
| BRPI0908190A2 (en) | 2015-08-25 |
| JP2009235507A (en) | 2009-10-15 |
| RU2459878C2 (en) | 2012-08-27 |
| WO2009119291A1 (en) | 2009-10-01 |
| BRPI0908190B1 (en) | 2017-05-30 |
| CN101932738B (en) | 2012-10-10 |
| UA94202C2 (en) | 2011-04-11 |
| CN101932738A (en) | 2010-12-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20210310 |