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
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 15
- 239000002184 metal Substances 0.000 title claims abstract description 15
- 238000002844 melting Methods 0.000 title claims abstract description 11
- 230000008018 melting Effects 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title claims description 18
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000001301 oxygen Substances 0.000 claims abstract description 49
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 49
- 239000004449 solid propellant Substances 0.000 claims abstract description 10
- 239000007789 gas Substances 0.000 claims description 4
- 238000001179 sorption measurement Methods 0.000 claims description 2
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 13
- 239000003830 anthracite Substances 0.000 description 13
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 10
- 230000004927 fusion Effects 0.000 description 9
- 238000002485 combustion reaction Methods 0.000 description 8
- 239000001294 propane Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- ATRMIFNAYHCLJR-UHFFFAOYSA-N [O].CCC Chemical compound [O].CCC ATRMIFNAYHCLJR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007500 overflow downdraw method Methods 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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 specially adapted for 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
Definitions
- the present invention relates to fusion methods metal charges in a rotary kiln equipped with minus an oxy-burner.
- the oxy-burner regulated in stoichiometric conditions, ensures the fusion of the charge metallic possibly containing, and for purely metallurgical considerations, weak quantities of solid fuels, generally not exceeding not 1% of the metal charge to limit the formation of unwanted unburned volatile compounds which also level of implementation of the oxy-burner, limit the conditions under which combustion is carried out and, consequently, the rate of melting of the charge in the oven.
- DE-A-4142301 discloses a process for the fusion of solid materials using an air burner or oxycombustible strongly under stoichiometric, process in which we add oxygen to the oven using spears.
- the object of the present invention is to compose a improved process for increasing significant speed and efficiency of fusion in a donated oven while reducing energy consumption overall.
- the method comprises the steps of adding to the metallic charge to melt a fuel charge solid between 1.5% and 9% of the weight of the metallic filler and inject at least one oxygen jet towards the combined charge in the oven.
- the present invention also relates to an oven rotary for implementing such a method, comprising, in addition to an oxy-burner, at least one lance with oxygen arranged to direct at least one jet of oxygen to the bottom of the oven.
- the combustion in the charge itself where the oxygen injected by the lance interacts with the solid fuel which burns in direct contact with metal, increasing extremely importantly the reaction surface and thereby promoting an accelerated merger without affecting the temperature conditions at the oven refractory and therefore not reducing the life of the latter.
- a significant share, exceeding 35% of the energy total combustion, being ensured in the load, by solid fuel, the power of the burner, and therefore its cost, can be reduced significantly.
- FIG 1 there is shown a rotary kiln 1 in the end door 4 of which are mounted a charge-oriented oxy-burner 5 and an oxygen lance 2 adjustable position thanks to a device guide 3.
- the lance 2 is oriented so as to direct, in the furnace 1, a high oxygen jet speed, typically supersonic, towards a combined load of metal, typically steel, to be melted and a fuel solid in proportions typically greater than 2% of metallic charge.
- This solid fuel is typically anthracite, graphite, in particular electrode, or other carbon-containing products and hydrogen, especially solid polyolefins.
- an oxygen lance 2 comprising an upper main oxygen supply 7 and two lower oxygen leads 6 allowing ejection of differentiated oxygen jets in the direction of the charge and below the burner flame 5.
- the lance body 2 has a groove 8a cooperating with a rib 8b of the guide device 3 for maintaining an orientation tubes 6 and 7 correctly when adjusting forwards or towards the rear of the lance 2 in the oven 1.
- Figures 4 and 5 show an oxy-burner comprising a central supply 12 of combustible gas in a ferrule forming an oxygen channel 9a introduced by a inlet 9, the combustible gas being ejected by injectors 10 extending into outlet orifices oxygen in the burner nose, here angularly distributed around the axis of the burner.
- the combined ejection ports oxygen / gaseous fuel are replaced by at least one lance 2 as described in relation to Figures 2 and 3 and the upstream part of which extends into the central supply of fuel 12.
- the end of a central cooling circuit of the burner nose In 11 the end of a central cooling circuit of the burner nose.
- Figures 6 and 7 show an oxy-burner cooled comprising a peripheral liner 11 of circulation of water introduced in 13 and evacuated in 14.
- the burner includes a central fuel gas supply 12 extending into an oxygen ejection channel 9a and opening outwards through a series of ejectors 10, here angularly and regularly distributed.
- at least one, in this case two oxygen lances 2 extend in the lower part of the main oxygen channel 9a and open to the outside of the burner below the ejectors 10.
- oxygen main in channel 9a cooled by liner 11, participates in the cooling of the oxygen lances 2.
- the oxygen lance is set to eject the oxygen jets into the direction towards the load at an angle between 5 and 25 ° with respect to the axis of the oven.
- the flow of jets of oxygen ejected by the lance is chosen between 25 and 150% of the oxygen burner oxygen flow.
- a second oxygen lance also directed towards the load, in the end of the oven opposite the burner.
- Supply oxygen both from the lance and from the oxy-burner is advantageously oxygen at a purity between 88 and 95% supplied on site by a separation unit of gas from the air by adsorption of the so-called PSA type.
- Solid fuel in proportions 3.2% of the steel load, in this case 5.3 tonnes approximately, is anthracite and the oxygen injected by the lance 2 is ejected at supersonic speed at an angle about 10 ° from the axis of the oven.
- references 1 to 18 correspond to fusion processes without injection oxygen with reduced loads of anthracite
- references 19 to 22 using injection of oxygen directed to a metal charge containing 1.5% anthracite increased to 3% in references 23 to 28.
- Figure 8 which illustrates the melting rates in ° C / minute for a load of 5.3T for each of the references 1 to 29 of the preceding Tables, shows that the speed goes from above 15 to more than 20 for references 28 and 29, which makes it possible to reduce the time of discontinuous oven rotation from 55 minutes to 33 minutes and the break between rotations of 5 to 3 minutes.
- Figure 9 which illustrates the consumption of propane (bottom curve) and oxygen (top curve) for each of the references 1 to 29, shows that the specific consumption of propane can drop to 4.6m 3 for a substantially stable oxygen consumption.
- Figure 10 shows that the melting efficiency goes from just over 50% to over 60-65%.
- Figure 11 shows that the energy consumption, in KWh can be reduced from around 700 KWh to less than 600 KWh.
- Figure 12 shows that, according to references 1 to 29, the energy percentage in the load goes from less than 20 to over 40 with a corresponding increase in melting speed from 15 to 22 ° C / minute.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Gasification And Melting Of Waste (AREA)
- Furnace Charging Or Discharging (AREA)
- Air Supply (AREA)
- Furnace Details (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
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 |
| KR20150065704A (ko) * | 2012-10-08 | 2015-06-15 | 레르 리키드 쏘시에떼 아노님 뿌르 레뜌드 에렉스뿔라따시옹 데 프로세데 조르즈 클로드 | 회전 가마 내에서의 2차 연료의 연소를 개선하는 공정 및 장치 그리고 버너 조립체를 갖는 회전 가마를 개조하는 공정 |
| 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 DK DK95923393T patent/DK0769125T3/da active
- 1995-06-15 BR BR9508013A patent/BR9508013A/pt not_active IP Right Cessation
- 1995-06-15 AU AU27963/95A patent/AU691628B2/en not_active Ceased
- 1995-06-15 US US08/750,559 patent/US6039786A/en not_active Expired - Lifetime
- 1995-06-15 JP JP8501744A patent/JPH10501610A/ja active Pending
- 1995-06-15 AT AT95923393T patent/ATE170970T1/de not_active IP Right Cessation
- 1995-06-15 CN CN95193625A patent/CN1150837A/zh active Pending
- 1995-06-15 WO PCT/FR1995/000791 patent/WO1995034791A1/fr not_active Ceased
- 1995-06-15 DE DE69504680T patent/DE69504680T2/de not_active Expired - Lifetime
- 1995-06-15 CA CA002192953A patent/CA2192953A1/fr not_active Abandoned
- 1995-06-15 KR KR1019960707176A patent/KR100370632B1/ko not_active Expired - Lifetime
- 1995-06-15 EP EP95923393A patent/EP0769125B1/fr not_active Expired - Lifetime
- 1995-06-15 ES ES95923393T patent/ES2120755T3/es not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ES2114388B1 (es) | 1998-12-16 |
| DK0769125T3 (da) | 1999-03-01 |
| CN1150837A (zh) | 1997-05-28 |
| DE69504680D1 (de) | 1998-10-15 |
| DE69504680T2 (de) | 1999-03-18 |
| EP0769125A1 (fr) | 1997-04-23 |
| CA2192953A1 (fr) | 1995-12-21 |
| AU691628B2 (en) | 1998-05-21 |
| ATE170970T1 (de) | 1998-09-15 |
| BR9508013A (pt) | 1997-09-02 |
| JPH10501610A (ja) | 1998-02-10 |
| KR100370632B1 (ko) | 2003-04-11 |
| WO1995034791A1 (fr) | 1995-12-21 |
| AU2796395A (en) | 1996-01-05 |
| US6039786A (en) | 2000-03-21 |
| TW257793B (en) | 1995-09-21 |
| ES2114388A1 (es) | 1998-05-16 |
| ES2120755T3 (es) | 1998-11-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0769125B1 (fr) | Procede de fusion d'une charge metallique dans un four rotatif et four rotatif pour la mise en uvre d'un tel procede | |
| EP2736854B1 (fr) | Installation et procede hybrides de fusion de verre | |
| FR2507624A1 (fr) | Procede pour la gazeification du charbon et la fabrication de fonte et installation pour sa mise en oeuvre | |
| CN106232835A (zh) | 竖式炉和操作所述竖式炉的方法 | |
| FR2959298A1 (fr) | Four a flamme et procede de regulation de la combustion dans un four a flamme | |
| CA2437254C (fr) | Procede de production de fonte liquide dans un four electrique | |
| LU83814A1 (fr) | Procede et dispositif pour l'affinage d'un bain de metal contenant des matieres refroidissantes solides | |
| US5163997A (en) | High-production rotary furnace steelmaking | |
| EP0834049B1 (fr) | Procede de fusion d'une charge dans un four electrique a arc | |
| FR2540518A1 (fr) | Procede pour la conduite d'un four metallurgique de fusion et dispositif de mise en oeuvre | |
| EP0319505B1 (fr) | Procédé de réduction des minerais dans un four à cuve | |
| EP0605378A1 (fr) | Procédé de valorisation de la scorie de four électrique d'aciére | |
| BE1004481A6 (fr) | Procede et dispositif pour le traitement pyrometallurgique d'une matiere pulverulente contenant un compose d'un ou de plusieurs metaux. | |
| EP1154825B1 (fr) | Procede d'optimisation du fonctionnement d'un haut four | |
| CN1138123C (zh) | 双室炼钢装置及使用该装置的炼钢方法 | |
| BE1000893A7 (fr) | Procede pour la reduction des minerais au four a cuve. | |
| EP4273274A1 (fr) | Brûleur doté d'un dispositif d'imagerie, four électrique équipé dudit brûleur et procédé de fabrication de fer fondu à l'aide dudit four électrique | |
| EP0302041A2 (fr) | Procédé de conduite d'un haut fourneau | |
| FR2786196A1 (fr) | Procede de combustion, notamment pour l'elaboration de la fonte ou la fabrication de ciment | |
| FR2532327A1 (fr) | Procede pour fournir de la chaleur dans un convertisseur siderurgique | |
| BE1000862A6 (fr) | Procede de reduction des minerais au four a cuve. | |
| FR2797738A1 (fr) | Procede d'injection d'un gaz supersonique dans un four a arc electrique et four a arc pour la mise en oeuvre de ce procede | |
| BE501966A (fr) | ||
| FR2615930A1 (fr) | Foyer de chaudiere | |
| LU83994A1 (fr) | Procede de conduite du haut fourneau avec injection de gaz reducteurs surchauffes |
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: 19970116 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| 17Q | First examination report despatched |
Effective date: 19970819 |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19980909 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19980909 |
|
| REF | Corresponds to: |
Ref document number: 170970 Country of ref document: AT Date of ref document: 19980915 Kind code of ref document: T |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
| REF | Corresponds to: |
Ref document number: 69504680 Country of ref document: DE Date of ref document: 19981015 |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2120755 Country of ref document: ES Kind code of ref document: T3 |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19981020 |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: FRENCH |
|
| REG | Reference to a national code |
Ref country code: PT Ref legal event code: SC4A Free format text: AVAILABILITY OF NATIONAL TRANSLATION Effective date: 19980914 |
|
| REG | Reference to a national code |
Ref country code: DK Ref legal event code: T3 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990504 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990615 |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19991231 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20010517 Year of fee payment: 7 Ref country code: CH Payment date: 20010517 Year of fee payment: 7 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20010518 Year of fee payment: 7 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20010522 Year of fee payment: 7 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: PT Payment date: 20010604 Year of fee payment: 7 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DK Payment date: 20010628 Year of fee payment: 7 |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020615 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020616 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020630 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020630 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020731 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20021231 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030101 |
|
| EUG | Se: european patent has lapsed | ||
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20020615 |
|
| REG | Reference to a national code |
Ref country code: DK Ref legal event code: EBP |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 20030101 |
|
| REG | Reference to a national code |
Ref country code: PT Ref legal event code: MM4A Free format text: LAPSE DUE TO NON-PAYMENT OF FEES Effective date: 20021231 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20140619 Year of fee payment: 20 Ref country code: ES Payment date: 20140624 Year of fee payment: 20 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 20140620 Year of fee payment: 20 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20140619 Year of fee payment: 20 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20140630 Year of fee payment: 20 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 69504680 Country of ref document: DE |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20150925 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20150616 |