EP2242975A2 - Verfahren zur erhitzung eines mineralrohstoffes in einem tunnelofen - Google Patents
Verfahren zur erhitzung eines mineralrohstoffes in einem tunnelofenInfo
- Publication number
- EP2242975A2 EP2242975A2 EP09709567A EP09709567A EP2242975A2 EP 2242975 A2 EP2242975 A2 EP 2242975A2 EP 09709567 A EP09709567 A EP 09709567A EP 09709567 A EP09709567 A EP 09709567A EP 2242975 A2 EP2242975 A2 EP 2242975A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- oxidant
- injection
- injected
- fuel
- jet
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 13
- 239000011707 mineral Substances 0.000 title claims abstract description 13
- 238000010438 heat treatment Methods 0.000 title claims abstract description 11
- 238000010304 firing Methods 0.000 title abstract description 5
- 239000007800 oxidant agent Substances 0.000 claims abstract description 107
- 239000000446 fuel Substances 0.000 claims abstract description 67
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 10
- 230000001590 oxidative effect Effects 0.000 claims description 110
- 238000002347 injection Methods 0.000 claims description 53
- 239000007924 injection Substances 0.000 claims description 53
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 24
- 229910052760 oxygen Inorganic materials 0.000 claims description 24
- 239000001301 oxygen Substances 0.000 claims description 24
- 230000002093 peripheral effect Effects 0.000 claims description 19
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000009826 distribution Methods 0.000 claims description 7
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 5
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 5
- 239000004571 lime Substances 0.000 claims description 5
- 235000012054 meals Nutrition 0.000 claims description 3
- 239000002994 raw material Substances 0.000 description 21
- 238000002485 combustion reaction Methods 0.000 description 11
- 239000004568 cement Substances 0.000 description 10
- 238000010411 cooking Methods 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 210000001699 lower leg Anatomy 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000002006 petroleum coke Substances 0.000 description 2
- 239000001294 propane Substances 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000002551 biofuel Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 229940091263 other mineral product in atc Drugs 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 230000009919 sequestration Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000010792 warming Methods 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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
- F23D14/22—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/32—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid using a mixture of gaseous fuel and pure oxygen or oxygen-enriched air
-
- 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
Definitions
- the present invention relates in particular to a method of heating a mineral meal in a tunnel furnace type baking furnace having a focus with an inlet upstream, a downstream outlet and side walls equipped with burners.
- the raw material travels a treatment path between the upstream inlet and the downstream outlet of the hearth.
- the raw material is conveyed in a substantially constant thickness web along the treatment path where the raw material is heated and cooked by means of said burners so as to obtain a cooked product, such as clinker.
- Said burners comprise at least one fuel injector and at least one oxidant injector, said oxidant having an oxygen content of greater than 22% vol. These burners are hereinafter referred to as "oxyburners”.
- the oxygen content of the oxidant is greater than 22% vol.
- the oxygen content of the oxidant is advantageously greater than 50% vol, preferably greater than 70% vol and more preferably greater than 80% vol.
- the oxygen content in the oxidizer of an oxy-burner is greater than 22% vol, preferably greater than 50%, still more preferably greater than 70% and more preferably greater than 80%.
- Different types of burners are proposed to create the proper atmosphere for the material: a. oxy-fuel burners with concentric fuel and oxidant injections (Figure 1)
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Furnace Details (AREA)
- Tunnel Furnaces (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0850831A FR2927409B1 (fr) | 2008-02-11 | 2008-02-11 | Procede de chauffage d'un cru mineral dans un four de cuisson de type four tunnel |
| PCT/FR2009/050219 WO2009101361A2 (fr) | 2008-02-11 | 2009-02-11 | Procede de chauffage d'un cru mineral dans un four de cuisson de type four tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2242975A2 true EP2242975A2 (de) | 2010-10-27 |
Family
ID=39591875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09709567A Withdrawn EP2242975A2 (de) | 2008-02-11 | 2009-02-11 | Verfahren zur erhitzung eines mineralrohstoffes in einem tunnelofen |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20100316969A1 (de) |
| EP (1) | EP2242975A2 (de) |
| CN (1) | CN101946148A (de) |
| FR (1) | FR2927409B1 (de) |
| WO (1) | WO2009101361A2 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2281785A1 (de) * | 2009-08-06 | 2011-02-09 | AGC Glass Europe | Glasschmelzofen |
| US8707877B2 (en) | 2011-06-05 | 2014-04-29 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Solid fuel and oxygen combustion with low NOx and efficient burnout |
| DE102015005416B4 (de) * | 2015-04-29 | 2023-11-30 | Khd Humboldt Wedag Gmbh | Verfahren zum Betrieb eines Calcinators mit einem Gasbrenner |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB704901A (en) * | 1951-08-07 | 1954-03-03 | Pollopas Patents Ltd | Improvements in or relating to pulverised fuel burners, more particularly for cementkilns and similarly constructed furnaces |
| DE1508584A1 (de) * | 1966-06-02 | 1969-12-18 | Messer Griesheim Gmbh | Verfahren zur Herstellung von Zement oder anderen Stoffen in einem Flammofen |
| US3397256A (en) * | 1966-07-01 | 1968-08-13 | Baker Co J E | Combustion process and apparatus to increase a flame temperature |
| BR8807917A (pt) * | 1988-09-02 | 1991-05-14 | American Combustion Inc | Processo e queimador para combustao de material combustivel |
| US5007823A (en) * | 1989-12-01 | 1991-04-16 | Air Products And Chemicals, Inc. | Dust recycling to rotary kilns |
| US5755818A (en) * | 1995-06-13 | 1998-05-26 | Praxair Technology, Inc. | Staged combustion method |
| CA2178858C (en) * | 1995-06-13 | 2000-08-08 | Ray Paul Chamberland | Staged combustion with reduced generation of both nitrogen oxides and carbon monoxide |
| US5743723A (en) * | 1995-09-15 | 1998-04-28 | American Air Liquide, Inc. | Oxy-fuel burner having coaxial fuel and oxidant outlets |
| FR2784449B1 (fr) * | 1998-10-13 | 2000-12-29 | Stein Heurtey | Bruleur a combustible fluide notamment pour fours de rechauffage de produits siderurgiques |
| FR2788110B1 (fr) * | 1998-12-30 | 2001-02-16 | Air Liquide | Procede de combustion et ses utilisations pour l'elaboration de verre et de metal |
| FR2795716B1 (fr) * | 1999-07-02 | 2001-08-03 | Air Liquide | Procede de calcination d'un materiau a base de minerai |
| CN100453901C (zh) * | 2000-08-04 | 2009-01-21 | 巴布考克日立株式会社 | 固体燃料燃烧器及使用固定燃料燃烧器的燃烧方法 |
| FR2814796B1 (fr) * | 2000-10-03 | 2003-08-29 | Air Liquide | Bruleur tri-tubes pour fours notamment a verre et a metaux, et procede d'injection de combustible et de carburant par un tel bruleur |
| FR2823290B1 (fr) * | 2001-04-06 | 2006-08-18 | Air Liquide | Procede de combustion comportant des injections separees de combustible et d oxydant et ensemble bruleur pour la mise en oeuvre de ce procede |
| FR2825086B1 (fr) * | 2001-05-23 | 2004-05-14 | Carrieres Du Boulonnais | Procede de fabrication d'un ciment sulfo-alumineux et/ou ferro-alumineux, ciment obtenu par ce procede, et installation de mise en oeuvre |
| FR2863690B1 (fr) * | 2003-12-16 | 2006-01-20 | Air Liquide | Procede de combustion etagee mettant en oeuvre un gaz riche en oxygene et un gaz pauvre en oxygene |
| FR2863692B1 (fr) * | 2003-12-16 | 2009-07-10 | Air Liquide | Procede de combustion etagee avec injection optimisee de l'oxydant primaire |
| US7430970B2 (en) * | 2005-06-30 | 2008-10-07 | Larue Albert D | Burner with center air jet |
| US7717701B2 (en) * | 2006-10-24 | 2010-05-18 | Air Products And Chemicals, Inc. | Pulverized solid fuel burner |
| US8707877B2 (en) * | 2011-06-05 | 2014-04-29 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Solid fuel and oxygen combustion with low NOx and efficient burnout |
-
2008
- 2008-02-11 FR FR0850831A patent/FR2927409B1/fr not_active Expired - Fee Related
-
2009
- 2009-02-11 WO PCT/FR2009/050219 patent/WO2009101361A2/fr not_active Ceased
- 2009-02-11 EP EP09709567A patent/EP2242975A2/de not_active Withdrawn
- 2009-02-11 CN CN2009801047712A patent/CN101946148A/zh active Pending
- 2009-02-11 US US12/867,135 patent/US20100316969A1/en not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009101361A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009101361A3 (fr) | 2009-10-08 |
| FR2927409B1 (fr) | 2013-01-04 |
| CN101946148A (zh) | 2011-01-12 |
| WO2009101361A2 (fr) | 2009-08-20 |
| FR2927409A1 (fr) | 2009-08-14 |
| US20100316969A1 (en) | 2010-12-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20100913 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL BA RS |
|
| DAX | Request for extension of the european patent (deleted) | ||
| 17Q | First examination report despatched |
Effective date: 20160204 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20160615 |