CA2366290C - Procede et appareil permettant de reduire de la matiere de depart dans un four a sole rotative - Google Patents
Procede et appareil permettant de reduire de la matiere de depart dans un four a sole rotative Download PDFInfo
- Publication number
- CA2366290C CA2366290C CA002366290A CA2366290A CA2366290C CA 2366290 C CA2366290 C CA 2366290C CA 002366290 A CA002366290 A CA 002366290A CA 2366290 A CA2366290 A CA 2366290A CA 2366290 C CA2366290 C CA 2366290C
- Authority
- CA
- Canada
- Prior art keywords
- zone
- feed material
- furnace
- rotary hearth
- hearth furnace
- 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
- 239000000463 material Substances 0.000 title claims abstract description 85
- 238000000034 method Methods 0.000 title claims abstract description 64
- 230000008569 process Effects 0.000 claims abstract description 62
- 239000007789 gas Substances 0.000 claims abstract description 46
- 238000002485 combustion reaction Methods 0.000 claims abstract description 29
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000001301 oxygen Substances 0.000 claims abstract description 19
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 19
- 239000000567 combustion gas Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000007921 spray Substances 0.000 claims abstract description 5
- 238000010791 quenching Methods 0.000 claims abstract description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 14
- 239000003245 coal Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 8
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 7
- 239000000428 dust Substances 0.000 claims description 7
- 239000003039 volatile agent Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000002699 waste material Substances 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 239000003575 carbonaceous material Substances 0.000 claims description 4
- 229910044991 metal oxide Inorganic materials 0.000 claims description 4
- 239000002006 petroleum coke Substances 0.000 claims description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 3
- 239000012141 concentrate Substances 0.000 claims description 3
- 238000010891 electric arc Methods 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 150000004706 metal oxides Chemical class 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 238000010304 firing Methods 0.000 claims 1
- -1 rolling mill scale Substances 0.000 claims 1
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 9
- 230000009467 reduction Effects 0.000 abstract description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 14
- 239000000446 fuel Substances 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 239000003345 natural gas Substances 0.000 description 7
- 238000010792 warming Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000011800 void material Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229910052595 hematite Inorganic materials 0.000 description 2
- 239000011019 hematite Substances 0.000 description 2
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- SUBDBMMJDZJVOS-UHFFFAOYSA-N 5-methoxy-2-{[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulfinyl}-1H-benzimidazole Chemical compound N=1C2=CC(OC)=CC=C2NC=1S(=O)CC1=NC=C(C)C(OC)=C1C SUBDBMMJDZJVOS-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 101100285518 Drosophila melanogaster how gene Proteins 0.000 description 1
- 101100009348 Mus musculus Depp1 gene Proteins 0.000 description 1
- VQDBNKDJNJQRDG-UHFFFAOYSA-N Pirbuterol Chemical compound CC(C)(C)NCC(O)C1=CC=C(O)C(CO)=N1 VQDBNKDJNJQRDG-UHFFFAOYSA-N 0.000 description 1
- 101100009350 Rattus norvegicus Depp gene Proteins 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002802 bituminous coal Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011233 carbonaceous binding agent Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229940103178 maxair Drugs 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 229910021646 siderite Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/10—Making spongy iron or liquid steel, by direct processes in hearth-type furnaces
- C21B13/105—Rotary hearth-type furnaces
-
- 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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/16—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a circular or arcuate path
-
- 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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories or equipment specially adapted for furnaces of these types
- F27B9/3005—Details, accessories or equipment specially adapted for furnaces of these types arrangements for circulating gases
-
- 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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories or equipment specially adapted for furnaces of these types
- F27B9/40—Arrangements of controlling or monitoring devices
-
- 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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories or equipment specially adapted for furnaces of these types
- F27B9/36—Arrangements of heating devices
- F27B2009/3607—Heaters located above the track of 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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/06—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated
- F27B9/062—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated electrically heated
- F27B9/066—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated electrically heated heated by lamps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/30—Arrangements for extraction or collection of waste gases; Hoods therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
- F27D2009/0002—Cooling of furnaces
- F27D2009/001—Cooling of furnaces the cooling medium being a fluid other than a gas
- F27D2009/0013—Cooling of furnaces the cooling medium being a fluid other than a gas the fluid being water
- F27D2009/0016—Water-spray
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D99/00—Subject matter not provided for in other groups of this subclass
- F27D99/0001—Heating elements or systems
- F27D99/0033—Heating elements or systems using burners
- F27D2099/0046—Heating elements or systems using burners with incomplete combustion, e.g. reducing atmosphere
- F27D2099/0048—Post- combustion
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Organic Chemistry (AREA)
- Tunnel Furnaces (AREA)
- Manufacture Of Iron (AREA)
- Incineration Of Waste (AREA)
- Gasification And Melting Of Waste (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Furnace Details (AREA)
Abstract
Four (10) à sole rotative permettant de réduire de la matière de départ, qui comporte une sole rotative (12) placée dans une enceinte et montée rotative. Ladite enceinte, qui comporte une paroi interne annulaire (4), une paroi externe annulaire (6) et un toit (18), est fixée de manière étanche à la sole et divisée en une pluralité de zones dont au moins une zone de chargement (28), une zone de traitement (24) et une zone d'évacuation (22). Le four comporte en outre une pluralité de brûleurs (20) placés dans au moins la paroi externe de l'enceinte pour fournir une température régulée à l'intérieur du four à sole rotative et un carneau (30) placé dans la zone de réduction du four entre la zone de préchauffage (26) et la zone d'évacuation (22) pour évacuer les gaz de combustion des brûleurs et les gaz résultant du traitement de la matière de départ. Ledit carneau contient de l'espace pour la combustion et le dépôt des matières particulaires non brûlées. Un dispositif de refroidissement brusque à pulvérisation d'eau réduit la température des gaz d'échappement du four, si bien que la combustion ultérieure par l'introduction d'air ou d'oxygène ne produit pas de quantités significatives d'oxydes d'azote.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US1999/005671 WO2000055559A1 (fr) | 1999-03-15 | 1999-03-15 | Procede et appareil permettant de reduire de la matiere de depart dans un four a sole rotative |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2366290A1 CA2366290A1 (fr) | 2000-09-21 |
| CA2366290C true CA2366290C (fr) | 2008-02-12 |
Family
ID=22272361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002366290A Expired - Fee Related CA2366290C (fr) | 1999-03-15 | 1999-03-15 | Procede et appareil permettant de reduire de la matiere de depart dans un four a sole rotative |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP2002539415A (fr) |
| KR (1) | KR100654478B1 (fr) |
| CN (1) | CN1175237C (fr) |
| AU (1) | AU768518B2 (fr) |
| CA (1) | CA2366290C (fr) |
| WO (1) | WO2000055559A1 (fr) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW521091B (en) * | 2000-11-10 | 2003-02-21 | Nippon Steel Corp | A method for operating a rotary hearth type reduction furnace and an apparatus thereof |
| CN100445638C (zh) * | 2004-06-14 | 2008-12-24 | 张维田 | 一种垃圾焚烧方法及连续式垃圾焚烧系统 |
| PT103585B (pt) * | 2006-10-12 | 2008-11-03 | Ventil Engenharia Do Ambiente | Sistema de combustão para caldeiras verticais |
| JP5957348B2 (ja) * | 2012-09-21 | 2016-07-27 | Ｐｒｉｍｅｔａｌｓ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｊａｐａｎ株式会社 | 部分還元鉄製造装置 |
| CN104792153B (zh) * | 2014-01-20 | 2017-12-01 | 宜宾恒旭窑炉科技开发有限公司 | 一种旋转窑的烟气收集系统 |
| CN104910924B (zh) * | 2014-03-14 | 2018-04-10 | 袁承世 | 一种环窑式连续型干馏釜炭化炉 |
| CN111637431A (zh) * | 2020-06-05 | 2020-09-08 | 重庆赛迪热工环保工程技术有限公司 | 一种用于回收转底炉烟气热量的余热锅炉 |
| CN112981060B (zh) * | 2021-01-28 | 2022-09-06 | 济南华富锻造股份有限公司 | 一种控温淬火炉 |
| CN115786619B (zh) * | 2022-11-30 | 2024-12-24 | 黄冈市华窑中晋窑炉设备有限公司 | 一种直接还原铁的环形窑炉 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3836320A (en) * | 1972-03-17 | 1974-09-17 | Midland Ross Corp | Minimum scale reheating furnace and means relating thereto |
| US4870912A (en) * | 1988-02-25 | 1989-10-03 | Westinghouse Electric Corp. | Automatic combustion control method for a rotary combustor |
| US5632616A (en) * | 1994-11-28 | 1997-05-27 | Cadence Environmental Energy, Inc. | Method and apparatus for injecting air into long cement kilns |
-
1999
- 1999-03-15 CA CA002366290A patent/CA2366290C/fr not_active Expired - Fee Related
- 1999-03-15 AU AU30908/99A patent/AU768518B2/en not_active Ceased
- 1999-03-15 WO PCT/US1999/005671 patent/WO2000055559A1/fr not_active Ceased
- 1999-03-15 CN CNB998164690A patent/CN1175237C/zh not_active Expired - Fee Related
- 1999-03-15 KR KR1020017011741A patent/KR100654478B1/ko not_active Expired - Fee Related
- 1999-03-15 JP JP2000605147A patent/JP2002539415A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| AU768518B2 (en) | 2003-12-18 |
| CA2366290A1 (fr) | 2000-09-21 |
| KR20020001772A (ko) | 2002-01-09 |
| JP2002539415A (ja) | 2002-11-19 |
| KR100654478B1 (ko) | 2006-12-05 |
| CN1175237C (zh) | 2004-11-10 |
| AU3090899A (en) | 2000-10-04 |
| WO2000055559A1 (fr) | 2000-09-21 |
| CN1338036A (zh) | 2002-02-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |