EP0769125B1 - Procede de fusion d'une charge metallique dans un four rotatif et four rotatif pour la mise en uvre d'un tel procede - Google Patents
Procede de fusion d'une charge metallique dans un four rotatif et four rotatif pour la mise en uvre d'un tel procede Download PDFInfo
- Publication number
- EP0769125B1 EP0769125B1 EP95923393A EP95923393A EP0769125B1 EP 0769125 B1 EP0769125 B1 EP 0769125B1 EP 95923393 A EP95923393 A EP 95923393A EP 95923393 A EP95923393 A EP 95923393A EP 0769125 B1 EP0769125 B1 EP 0769125B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- oxygen
- charge
- burner
- lance
- 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 - Lifetime
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/08—Manufacture of cast-iron
-
- 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 peculiar to rotary-drum furnaces
- F27B7/2083—Arrangements for the melting of metals or the treatment of molten metals
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S266/00—Metallurgical apparatus
- Y10S266/90—Metal melting furnaces, e.g. cupola type
Description
- la proportion de charge de combustibles solides dans la charge métallique est comprise entre 1,5 et 9%, avantageusement entre 2 et 6%;
- l'oxygène est injecté a une vitesse proche de la vitesse du son ou supersonique;
- le jet d'oxygène est injecté, dès la mise en oeuvre du brûleur, entre la flamme du brûleur et la charge combinée dans le four.
- la Figure 1 est une vue schématique en coupe longitudinale d'un mode de réalisation d'un four de fusion de métal selon l'invention ;
- les Figures 2 et 3 sont des vues respectivement de coté et en coupe d'un mode de réalisation d'une lance à oxygène multitube ;
- la Figure 4 est une vue partielle en coupe longitudinale d'un brûleur à lance intégrée selon l'invention ;
- la Figure 5 est une vue en bout du brûleur de la Figure 4 ;
- la Figure 6 est une vue en coupe longitudinale d'un autre mode de réalisation d'un brûleur à lance intégrée selon l'invention ;
- la Figure 7 est une vue en bout du brûleur de la Figure 6 ;
- les Figures 8 à 11 sont des graphes illustrant des paramètres de fonctionnement selon les conditions des Tableaux 1 à 3 ;
- la Figure 12 est un graphe illustrant les relations entre la vitesse de fusion et le pourcentage en énergie de combustion dans la charge combinée du four.
Ref. | Anthracite | Temps | Température | Vitesse de fusion | Consommation totale |
1 | 80 | 55/41/96 | 1.361 | 14.18 | 107/536 |
2 | 80 | 55/37/92 | 1.367 | 14.86 | 103/514 |
3 | 80 | 55/55/110 | 1.321 | 12.00 | 123/614 |
4 | 80 | 55/42/97 | 1.370 | 14.12 | 108/542 |
5 | 80 | 55/42/97 | 1.346 | 13.88 | 108/542 |
6 | 80 | 55/42/97 | 1.321 | 13.62 | 108/542 |
7 | 80 | 55/43/98 | 1.376 | 14.05 | 109/547 |
8 | 80 | 55/42/97 | 1.362 | 14.04 | 108/542 |
9 | 80 | 55/46/101 | 1.341 | 13.28 | 113/564 |
10 | 80 | 55/44/99 | 1.340 | 13.50 | 111/553 |
11 | 80 | 55/49/104 | 1.405 | 13.50 | 116/581 |
12 | 80 | 55/42/97 | 1.324 | 13.60 | 108/542 |
13 | 80 | 55/35/90 | 1.291 | 14.34 | 101/503 |
14 | 80 | 55/44/99 | 1.324 | 13.37 | 111/553 |
15 | 80 | 55/53/108 | 1.298 | 12.02 | 121/603 |
16 | 80 | 55/50/105 | 1.379 | 13.30 | 117/586 |
17 | 80 | 55/44/99 | 1.377 | 13.91 | 111/563 |
18 | 80 | 55/43/98 | 1.345 | 13.72 | 109/547 |
19 | 80 | 55/30/85 | 1.399 | 16.46 | 83/542 |
20 | 80 | 55/30/85 | 1.364 | 16.05 | 83/542 |
21 | 80 | 55/29/84 | 1.381 | 16.44 | 82/536 |
22 | 80 | 55/30/85 | 1.370 | 16.12 | 83/542 |
23 | 150 | 40/40/80 | 1.360 | 17.00 | 79/397 |
24 | 150 | 40/32/72 | 1.360 | 18.90 | 72/358 |
25 | 150 | 40/35/75 | 1.367 | 18.20 | 75/375 |
26 | 150 | Changement | |||
27 | 150 | 40/35/75 | 1.436 | 19.15 | 75/375 |
28 | 150 | 33/32/65 | 1.422 | 21.90 | 65/325 |
29 | 170 | 33/27/60 | 1.330 | 22.17 | 60/300 |
Ref. | Anthracite | Temps | Temp. | Consommation Spéc. | Oxygène lance | Oxygène total |
Propane/oxyg. | ||||||
1 | 80 | 55/41/96 | 1.361 | 7.88/39.38 | ||
2 | 80 | 55/37/92 | 1.367 | 7.50/37.60 | ||
3 | 80 | 55/55/110 | 1.321 | 9.30/46.48 | ||
4 | 80 | 55/42/97 | 1.370 | 7.90/39.56 | ||
5 | 80 | 55/42/97 | 1.346 | 8.05/40.27 | ||
6 | 80 | 55/42/97 | 1.321 | 8.20/41.03 | ||
7 | 80 | 55/43/98 | 1.376 | 7.95/39.75 | ||
8 | 80 | 55/42/97 | 1.362 | 7.95/39.75 | ||
9 | 80 | 55/46/101 | 1.341 | 8.41/42.06 | ||
10 | 80 | 55/44/99 | 1.340 | 8.25/41.27 | ||
11 | 80 | 55/49/104 | 1.405 | 8.26/41.35 | ||
12 | 80 | 55/42/97 | 1.324 | 8.18/40.94 | ||
13 | 80 | 55/35/90 | 1.291 | 7.79/38.96 | ||
14 | 80 | 55/44/99 | 1.324 | 8.35/41.77 | ||
15 | 80 | 55/53/108 | 1.298 | 9.29/46.47 | ||
16 | 80 | 55/50/105 | 1.379 | 8.50/42.49 | ||
17 | 80 | 55/44/99 | 1.377 | 8.02/40.16 | ||
18 | 80 | 55/43/98 | 1.345 | 8.13/40.67 | ||
19 | 80 | 55/30/85 | 1.399 | 5.93/38.74 | ||
20 | 80 | 55/30/85 | 1.364 | 6.09/39.74 | ||
21 | 80 | 55/29/84 | 1.381 | 5.94/38.81 | ||
22 | 80 | 55/30/85 | 1.370 | 6.06/39.56 | ||
23 | 150 | 40/40/80 | 1.360 | 5.81/29.19 | 233 | 630 |
24 | 150 | 40/32/72 | 1.360 | 5.29/26.32 | 223 | 581 |
25 | 150 | 40/35/75 | 1.367 | 5.49/27.43 | 230 | 605 |
26 | 150 | Changement | ||||
27 | 150 | 40/35/75 | 1.436 | 5.22/26.11 | 219 | 594 |
28 | 150 | 33/32/65 | 1.422 | 4.57/22.86 | 203 | 528 |
29 | 170 | 33/27/60 | 1.330 | 4.51/22.41 | 234 | 532 |
Ref. | Anthracite | Temps | Temp. | Consommation spéc. | Analyse acier |
1 | 80 | 55/41/96 | 1.361 | ||
2 | 80 | 55/37/92 | 1.367 | ||
3 | 80 | 55/55/110 | 1.321 | ||
4 | 80 | 55/42/97 | 1.370 | ||
5 | 80 | 55/42/97 | 1.346 | ||
6 | 80 | 55/42/97 | 1.321 | ||
7 | 80 | 55/43/98 | 1.376 | ||
80 | 55/42/97 | 1.362 | 3.81/3.13/1.38 | ||
9 | 80 | 55/46/101 | 1.341 | 3.59/3.09/1.18 | |
10 | 80 | 55/44/99 | 1.340 | 3.63/3.19/1.27 | |
11 | 80 | 55/49/104 | 1.405 | ||
12 | 80 | 55/42/97 | 1.324 | 3.64/3.09/1.88 | |
13 | 80 | 55/35/90 | 1.291 | 3.70/3.16/1.99 | |
14 | 80 | 55/44/99 | 1.324 | 3.67/3.17/1.44 | |
15 | 80 | 55/53/108 | 1.298 | 3.52/3.09/1.34 | |
16 | 80 | 55/50/105 | 1.379 | 3.62/3.04/1.68 | |
17 | 80 | 55/44/99 | 1.377 | ||
18 | 80 | 55/43/98 | 1.345 | ||
19 | 80 | 55/30/85 | 1.399 | ||
20 | 80 | 55/30/85 | 1.364 | ||
21 | 80 | 55/29/84 | 1.381 | ||
22 | 80 | 55/30/85 | 1.370 | 3.85/3.23/1.80 | |
23 | 150 | 40/40/80 | 1.360 | 46.32 | 3.58/3.03/1.56 |
24 | 150 | 40/32/72 | 1.360 | 42.72 | 3.51/3.01/1.44 |
25 | 150 | 40/35/75 | 1.367 | 44.26 | 3.74/3.21/1.51 |
26 | 150 | Changement | |||
27 | 150 | 40/35/75 | 1.436 | 41.36 | 3.71/3.17/1.55 |
28 | 150 | 33/32/65 | 1.422 | 37.13 | 3.58/3.06/1.51 |
29 | 170 | 33/27/60 | 1.330 | 40.00 |
Claims (12)
- Procédé de fusion d'une charge métallique dans un four rotatif équipé d'au moins un oxybrûleur, caractérisé en ce qu'il comprend les étapes d'adjoindre à la charge métallique une charge de combustible solide comprise entre 1,5% et 9% du poids de la charge métallique et d'injecter au moins un jet d'oxygène en direction de la charge combinée dans le four.
- Procédé selon la revendication 1, caractérisé en ce que la proportion de charge de combustible solide dans la charge métallique est comprise entre 1,5% et 9%.
- Procédé selon la revendication 2, caractérisé en ce que la proportion de charge de combustible solide dans la charge métallique est comprise entre 2 et 6%.
- Procédé selon l'une des revendications 1 à 3, caractérisé en ce que l'oxygène est injecté à une vitesse supersonique.
- Procédé selon l'une des revendications 1 à 4, caractérisé en ce que le jet d'oxygène est injecté entre la flamme du brûleur et la charge combinée dans le four.
- Procédé selon l'une des revendications 1 à 5, caractérisé en ce que l'oxygène est injecté dès la mise en oeuvre du brûleur.
- Procédé selon l'une des revendications 1 à 6, caractérisé en ce que au moins l'oxygène injecté par la lance provient d'une unité de séparation de gaz de l'air par adsorption.
- Four rotatif pour la mise en oeuvre d'un procédé selon l'une des revendications précédentes, comprenant, à une extrémité, au moins un oxybrûleur (5), caractérisé en ce qu'il comporte en outre au moins une lance à oxygène (2) agencée pour diriger au moins un jet d'oxygène vers le bas du four.
- Four selon la revendication 8, caractérisé en ce que la lance comporte au moins deux canaux (6, 7) d'éjection d'oxygène.
- Four selon la revendication 8 ou 9, caractérisé en ce que la lance (2) est disposée au-dessous du brûleur (5).
- Four selon l'une des revendications 8 à 9, caractérisé en ce que la lance (2) est incorporée dans la brûleur.
- Four selon l'une des revendications 8 à 11, caractérisé en ce que le brûleur comprend une pluralité d'éjecteurs angulairement repartis (10).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES09401366A ES2114388B1 (es) | 1994-06-16 | 1994-06-16 | Procedimiento para la fusion de metales en hornos rotativos y horno de fusion rotativo para la aplicacion de este procedimiento. |
ES9401366 | 1994-06-16 | ||
PCT/FR1995/000791 WO1995034791A1 (fr) | 1994-06-16 | 1995-06-15 | Procede de fusion d'une charge metallique dans un four rotatif et four rotatif pour la mise en ×uvre d'un tel procede |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0769125A1 EP0769125A1 (fr) | 1997-04-23 |
EP0769125B1 true EP0769125B1 (fr) | 1998-09-09 |
Family
ID=8286673
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95923393A Expired - Lifetime EP0769125B1 (fr) | 1994-06-16 | 1995-06-15 | Procede de fusion d'une charge metallique dans un four rotatif et four rotatif pour la mise en uvre d'un tel procede |
Country Status (14)
Country | Link |
---|---|
US (1) | US6039786A (fr) |
EP (1) | EP0769125B1 (fr) |
JP (1) | JPH10501610A (fr) |
KR (1) | KR100370632B1 (fr) |
CN (1) | CN1150837A (fr) |
AT (1) | ATE170970T1 (fr) |
AU (1) | AU691628B2 (fr) |
BR (1) | BR9508013A (fr) |
CA (1) | CA2192953A1 (fr) |
DE (1) | DE69504680T2 (fr) |
DK (1) | DK0769125T3 (fr) |
ES (2) | ES2114388B1 (fr) |
TW (1) | TW257793B (fr) |
WO (1) | WO1995034791A1 (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0982407B1 (fr) * | 1998-08-24 | 2003-01-22 | Alstom | Procédé pour la fusion de substances inorganiques |
EP2080973A1 (fr) | 2008-01-10 | 2009-07-22 | L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude | Fours rotatifs |
DE102008047489B4 (de) * | 2008-09-17 | 2010-05-12 | Messer Group Gmbh | Brenner und Verfahren zum Betreiben eines Brenners |
US8632621B2 (en) | 2010-07-12 | 2014-01-21 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method for melting a solid charge |
US8262983B2 (en) | 2010-08-05 | 2012-09-11 | Altek, L.L.C. | Tilting rotary furnace system and methods of aluminum recovery |
US8915733B2 (en) * | 2010-11-11 | 2014-12-23 | Air Products And Chemicals, Inc. | Selective adjustment of heat flux for increased uniformity of heating a charge material in a tilt rotary furnace |
EP2626628B1 (fr) * | 2012-02-09 | 2014-04-09 | Linde Aktiengesellschaft | Conduite d'un four industriel et brûleur associé |
IN2015DN02845A (fr) * | 2012-10-08 | 2015-09-11 | Air Liquide | |
CN103090665B (zh) * | 2012-11-30 | 2014-10-15 | 沈光林 | 用于回转窑的局部增氧助燃装置 |
CN103175394A (zh) * | 2013-03-01 | 2013-06-26 | 大连易世达新能源发展股份有限公司 | 用于水泥窑节能减排的局部增氧助燃装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB952507A (en) * | 1961-07-07 | 1964-03-18 | British Oxygen Co Ltd | Process for the treatment of metal and jet for use therein |
FR1442523A (fr) * | 1965-05-07 | 1966-06-17 | Soc Metallurgique Imphy | Four tournant pour l'obtention continue de fonte, d'acier ou de fer liquide |
US4414026A (en) * | 1981-07-30 | 1983-11-08 | Nippon Kokan Kabushiki Kaisha | Method for the production of ferrochromium |
DE3518555C1 (de) * | 1985-05-23 | 1986-01-09 | Fried. Krupp Gmbh, 4300 Essen | Verfahren zur Reduktion von eisenhaltigen Chromerzen |
US4865297A (en) * | 1986-11-21 | 1989-09-12 | Gitman Grigory M | Apparatus for melting and refining metals |
US5123364A (en) * | 1989-11-08 | 1992-06-23 | American Combustion, Inc. | Method and apparatus for co-processing hazardous wastes |
US5163997A (en) * | 1991-02-08 | 1992-11-17 | Sherwood William L | High-production rotary furnace steelmaking |
DE4142401C2 (de) * | 1991-12-20 | 1999-01-21 | Linde Ag | Verfahren zum Betrieb einer auf einem oder mehreren Brennern basierenden Beheizung eines Ofens |
DE4202827A1 (de) * | 1992-01-31 | 1993-08-05 | Linde Ag | Geregelter betrieb von industrieoefen |
FR2694802B1 (fr) * | 1992-08-12 | 1994-09-16 | Air Liquide | Four de maintien en température d'une charge métallique fondue et procédé de mise en Óoeuvre. |
US5714113A (en) * | 1994-08-29 | 1998-02-03 | American Combustion, Inc. | Apparatus for electric steelmaking |
-
1994
- 1994-06-16 ES ES09401366A patent/ES2114388B1/es not_active Expired - Fee Related
-
1995
- 1995-02-10 TW TW084101163A patent/TW257793B/zh not_active IP Right Cessation
- 1995-06-15 KR KR1019960707176A patent/KR100370632B1/ko active IP Right Grant
- 1995-06-15 AT AT95923393T patent/ATE170970T1/de not_active IP Right Cessation
- 1995-06-15 CA CA002192953A patent/CA2192953A1/fr not_active Abandoned
- 1995-06-15 JP JP8501744A patent/JPH10501610A/ja active Pending
- 1995-06-15 EP EP95923393A patent/EP0769125B1/fr not_active Expired - Lifetime
- 1995-06-15 WO PCT/FR1995/000791 patent/WO1995034791A1/fr active IP Right Grant
- 1995-06-15 BR BR9508013A patent/BR9508013A/pt not_active IP Right Cessation
- 1995-06-15 US US08/750,559 patent/US6039786A/en not_active Expired - Lifetime
- 1995-06-15 DE DE69504680T patent/DE69504680T2/de not_active Expired - Lifetime
- 1995-06-15 CN CN95193625A patent/CN1150837A/zh active Pending
- 1995-06-15 AU AU27963/95A patent/AU691628B2/en not_active Ceased
- 1995-06-15 DK DK95923393T patent/DK0769125T3/da active
- 1995-06-15 ES ES95923393T patent/ES2120755T3/es not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH10501610A (ja) | 1998-02-10 |
DK0769125T3 (da) | 1999-03-01 |
ATE170970T1 (de) | 1998-09-15 |
AU2796395A (en) | 1996-01-05 |
TW257793B (en) | 1995-09-21 |
AU691628B2 (en) | 1998-05-21 |
DE69504680D1 (de) | 1998-10-15 |
CA2192953A1 (fr) | 1995-12-21 |
KR100370632B1 (ko) | 2003-04-11 |
ES2114388A1 (es) | 1998-05-16 |
DE69504680T2 (de) | 1999-03-18 |
BR9508013A (pt) | 1997-09-02 |
US6039786A (en) | 2000-03-21 |
WO1995034791A1 (fr) | 1995-12-21 |
EP0769125A1 (fr) | 1997-04-23 |
ES2114388B1 (es) | 1998-12-16 |
ES2120755T3 (es) | 1998-11-01 |
CN1150837A (zh) | 1997-05-28 |
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