EP1093560B1 - Four a feu tournant a flux central tubulaire - Google Patents
Four a feu tournant a flux central tubulaire Download PDFInfo
- Publication number
- EP1093560B1 EP1093560B1 EP99925058A EP99925058A EP1093560B1 EP 1093560 B1 EP1093560 B1 EP 1093560B1 EP 99925058 A EP99925058 A EP 99925058A EP 99925058 A EP99925058 A EP 99925058A EP 1093560 B1 EP1093560 B1 EP 1093560B1
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- Prior art keywords
- section
- gas flow
- cross
- flow
- wall
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- 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
- F27B13/00—Furnaces with both stationary charge and progression of heating, e.g. of ring type, of type in which segmental kiln moves over stationary charge
- F27B13/06—Details, accessories, or equipment peculiar to furnaces of this type
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- 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
- F27B13/00—Furnaces with both stationary charge and progression of heating, e.g. of ring type, of type in which segmental kiln moves over stationary charge
- F27B13/02—Furnaces with both stationary charge and progression of heating, e.g. of ring type, of type in which segmental kiln moves over stationary charge of multiple-chamber type with permanent partitions; Combinations of furnaces
Definitions
- the invention relates to revolving furnace chambers used for cooking blocks carbonaceous, and more particularly open type furnaces.
- Open type rotating chamber furnaces are well known in themselves and described in particular in patent applications FR 2 600 152 (corresponding to the patent US 4,859,175) and WO 91/19147.
- a gas flow consisting air and / or combustion gases circulate in the succession of active chambers in the long direction of the oven, in a succession of hollow heating partitions which communicate with each other from one room to another, each room being made up of the juxtaposition in the cross direction of the oven, alternately, of these heating partitions and cells in which the carbon blocks to be cooked are stacked.
- This gas flow is blown upstream of the active chambers and is sucked downstream of these chambers.
- a hollow room partition typically takes the form of a rectangular parallelepiped 5 m long (long direction of the oven), 5 m high and 0.5 m wide (across the furnace) or 0.3 m of gas stream and twice 0.1 m wall), subdivided into 4 vertical "wells" thanks to 3 vertical baffles arranged in the cross direction, each well being bounded either by two baffles, or by a baffle and a of the walls of the room, so as to increase the average air path of cooling or combustion gases in said partition and, in addition, to ensure a constant spacing between the longitudinal walls of the partition.
- spacers are also arranged in the cross direction, in particular between said baffles, to ensure constant spacing between the walls longitudinal of the partition.
- a constant concern of the manufacturer of baked carbon blocks is - quality constant - to decrease the production costs of these cooked carbon blocks and the costs investment and / or maintenance of the ovens used to manufacture them, particularly in increasing the service life of the refractory elements of the ovens.
- Another concern is to improve the quality of these cooked carbon blocks, by particular to improve consistency of quality and consistency of performance within from the same carbon block and from one block to another.
- the applicant has had the idea of modeling the circulation of gaseous fluids in existing oven partitions, knowing the dimensions and locations of the baffles and spacers.
- the modeling also highlighted the significant pressure drop in the flow gas due to the presence of baffles, which has the double consequence on the one hand increase the energy required to circulate the gas flow in the succession of partitions, and on the other hand to increase the corresponding overpressure or depression in said partitions, which leads to an increase in thermal leaks in a one way or the other (from said partition to the outside or from the outside to said partition), and therefore the energy consumed.
- the rotary fire oven with open type chambers for cooking carbonaceous blocks comprises, in the long direction X of the furnace, a succession of chambers separated by transverse walls with openings, each of the bedrooms comprising, in the transverse direction Y of the furnace, an alternation of hollow partitions ensuring the circulation of a gaseous flow for heating combustion gases or a gaseous flow cooling air, and cells containing the carbonaceous blocks to be cooked, each said hollow partitions of a chamber being in communication with a partition of a upstream chamber and / or a partition of a downstream chamber, so as to form a duct ensuring the circulation of said gas flow, from upstream to downstream, in the long direction X on all of the simultaneously active chambers for said rotating light, each of said partitions of a chamber comprising, in the X-Z plane, two side walls vertical, and, in the cross direction Y, elements ensuring the deflection of said gas flow traversing said partition and maintaining a constant spacing of said side walls, and is characterized in that each
- the invention is distinguished by the elimination of vertical baffles, generally three in number per hollow partition.
- the average path of the gas flow can be broken down into a component in the longitudinal direction X, over a length L, and in a component in the vertical direction Z, over a length 4xC, ie in total L + 4xC.
- C and M are typically between 0.6xH and 0.8xH.
- the gas flow is a tubular flow which changes direction 8 times (X / Z-X / Z-X / Z-X / X), each baffle bringing a change of direction in the vertical direction Z and in the longitudinal direction X noted "Z-X", alternating the longitudinal directions (X) and the vertical directions (Z), the entire gas flow being concentrated, at each passage of baffle, on a straight section S corresponding to a height of 0.2xH-0.4xH, i.e. 20 to 40% of the total section S.
- the average gas flow follows an average trajectory which is, in first approximation and taking into account the absence of vertical baffle, the arithmetic mean of the shortest trajectory, that of length L, and of the longest trajectory, either that of length equal to L + 2xM, i.e. 1 ⁇ 2 (L + L + 2xM) or L + M, to compare to the trajectory of the state of the art L + 4xC, with C close to M.
- the gas flow of flow rate D is distributed homogeneously over the entire section straight line S of said partition in the plane Y-Z, with a level of homogeneity of said distribution of the flow rate D equal to 0.50.D - 0.125.D /0.25.S, said level of homogeneity being noted "2y.D - 0.5y.D / y.S", “2y.D - 0.5y.D” being the range of the fraction of flow D corresponding to a fraction y, with y at most equal to 0.25, of said cross section S, which is equal to the product of the height "H" by the constant width "1" of the partitions hollow.
- Modeling of gas flows is carried out from a decomposition of the flow total gaseous in a number N of elementary gaseous threads - for example a fifty nets as illustrated in Figures 3 and 4, and it leads to a visualization of the trajectories of each of these nets in the X-Z plane, and therefore at the distribution of elementary gaseous nets, in the same way of spacing between contour lines on a map From there, it is easy to calculate the level of real homogeneity on any fraction "y" of the height H by counting the number "n" of elementary nets to obtain the n / N fraction corresponding to the height fraction "y” which was set to 0.25.
- the overall level of homogeneity is therefore expressed in fact by the portion of the surface of hollow wall, in the X-Z plane - or of corresponding volume - where the level homogeneity reaches at least a given threshold set at 0.5.D - 0.125.D / 0.25.S.
- the means according to the invention make it possible to solve the problem posed. Indeed, from the invention ensures a better distribution of the gas flow, and therefore a greater temperature uniformity, while reducing the pressure drop, which leads in definitive both to a more homogeneous production, to a reduction in operation of the ovens and an increase in the life of the ovens.
- Figures 1, la, 2, 3 and 3a correspond to the ovens according to the state of the art.
- the Figures 4. 4a, 5. 6 6a, 7a to 7d and 8 correspond to the ovens according to the invention.
- Figure 1 is a schematic view, in section along the plane X-Z, X being the direction longitudinal and Z the vertical direction, of the portion of the rotary fire oven (1), active simultaneously on 10 rooms (2), each room being separated from the next by a transverse wall (32) provided with an opening (320) ensuring the circulation of the gas flow flow rate D upstream (on the right in the figure), where air is injected thanks to a ramp blowing (231) provided with as many pipes (230) as there are hollow partitions (3) longitudinal provided with baffles (31) (three baffles per hollow partition and per chamber), downstream (on the left in the figure) where the gas flow is sucked in by means of a ramp (211) with as many suction pipes (210) as there are hollow partitions longitudinal.
- Burners (220) positioned substantially in the middle of the series of 10 chambers. bring the upstream gas flow to the desired temperature level, typically of the order 1100 ° C.
- the chambers located upstream of the burners are cooling of the carbon blocks, while the chambers downstream of the burners are carbon block cooking chambers.
- a gas flow (233) can exit the oven upstream of the burners, and a gaseous flow of air (213) can enter the oven downstream of the burners.
- the gas flow of flow D flowing in said hollow partitions is not a constant flow flow, taking into account both these gas flow (213, 233), and taking into account the formation of combustible volatile products during the cooking of the carbon blocks in the chambers in the downstream part of the oven.
- the gas flow is an air flow (34) upstream of the burners (220), and is a gas flow of combustion (35) mixed with an incident air flow (213) in the downstream part of the furnace.
- FIG. 1a represents the pressure curve of said gas flow of flow rate D, inside said hollow partitions (3).
- the pressure decreases regularly from upstream to downstream it is higher than atmospheric pressure and maximum at the blowing of air through pipes (230), it is close to atmospheric pressure just upstream of burners (220), where a pressure sensor (234) is installed, it is lower than the atmospheric and minimum pressure at the intake of combustion gases by the suction pipes (210).
- FIG. 2 shows a perspective view. partially exploded, from the upstream part of the series of active chambers, making it possible to observe, in the transverse direction Y, for the same chamber (2), the alternation of hollow heating partitions (3) and cells (4) containing the stack of carbon blocks (40).
- Each hollow partition (3) is limited in the X-Z plane by two vertical walls (38), and contains three baffles (31), is provided with openings (30) into which the blowing pipes (230) can be inserted as shown in the figure, or suction (210), the burner injectors (220), or various means of measurement.
- To the right of the openings (30) are the wells (38). that is to say the interior space of said partition without obstacle so as to be able introduce the aforementioned devices (blow pipes for example).
- the bedrooms (2) successive, two of which are shown in the figure, are separated by a wall (32). provided, at the level of said hollow partitions (3), with openings (320) allowing the gas flow from upstream to downstream. in the X'-
- FIG. 3 represents a map of the gas flow, obtained by simulation digital, broken down into fifty elementary threads (6), in a hollow partition according to the state of the art represented in FIG. 3a, provided with 3 baffles (31) and a certain number of spacers (33) maintaining a constant spacing between the walls (38) of said partition.
- Figure 3a have been shown the length L and the height H of a partition hollow for a given room, the height C of a baffle, and the height M of the wall (32) at each end of the partition.
- Figure 5 corresponding to a second embodiment of the invention, is a view partial schematic, in section in the X-Z plane, of the gas flow on a meme succession of hollow partitions of simultaneously active chambers for the same fire revolving, in case the rooms are not separated by a transverse wall
- Le gas flow retains a substantially constant section S over all of its route, a distribution means (232) being used upstream of said rotating light, so as to inject, through transverse slots or openings (2320), a gas flow, in the form of ten flow fractions (7), having said level of homogeneity, a other distribution means (212) being used downstream of said rotating light, so as to sucking said gas flow through transverse slots or openings (2120) without altering said level of homogeneity. Only the gas flows in the hollow partitions at both ends have been shown.
- the gas flow consists of a set of fractions flow (7), forming a tubular flow (50) substantially oriented along the longitudinal axis X'-X.
- Figure 6 corresponds to Figure 1, after modification according to Figure 5, in particular removal of the transverse walls (32), and introduction of the distribution means (212, 232). Were not shown in this figure means for ensuring, at the level of burners (220), uniform heating of said gas flow.
- Figure 6a similar to the FIG. 1a represents the static pressure curve of said gas flow, in an oven according to with the state of the art (curve I), and in an oven according to the invention (curve II & III), curve II corresponding to the case where the rooms are separated by walls transverse (32) having an orifice (320) for the passage of the gas flow, while the curve III corresponds to the case of FIGS. 5 and 6 where the gas flow conserves, from upstream to downstream, substantially the same section S.
- Figures 7a to 7d illustrate, in section in the X-Z plane, spacers or elements ensuring the deflection of said gas stream, or of gas streams (6) which flow around said spacers (33a, 33b, 33c, 33d), some (33c and 33d) being of oblong shape with a major axis (330), to facilitate the flow of the gas flow and reduce its loss of charge.
- FIG. 8 illustrates the case where, in order to further reduce the pressure drop, oblong elements (33c, 33d) are used and oriented, so that the orientation of the major axis (330) of said spacers coincides with the direction of flow gaseous, in particular in the case where said chambers are separated by walls (32) provided with orifices or openings (320) ensuring the passage of said gas flow from a room to another.
- said oven (1) comprises chambers separated by a transverse wall (32) having openings of section So (320) ensuring the passage of said gas flow (34, 35) from a partition to the next partition, and in which each partition comprises, at its upstream part, a means for obtaining, from an initial flow of flow D of section So, a flow of section S> So having said level of homogeneity at least equal to 0.50.D - 0.125.D / 0.25.S.
- said conduit (5) is not of constant section, its section worth So, at each transverse wall (32), and S >> So in each partition hollow itself.
- Said means transforms. over a distance less than L / 2, L being the length of said partition, a gas flow with flow D and initial section So at the upstream inlet of said partition, in a flow of section S at least equal to 3.So, and having said level uniformity.
- said distance is less than L / 3.
- said medium is on the part marked "A”.
- Each partition may include, in its upper part, one or more openers (30), which can be closed by a cover (36) and which give access to wells (37).
- said means for obtaining said gas flow of flow rate D and of section S having said level of homogeneity consists of dividing elements, or spacers, (33) dividing, in a number of steps varying from 2 to 4, said initial flow of section So, as shown in Figures 4 and 4a, in a dozen flow fractions (7).
- the initial flow So is thus divided into 11 flow fractions (7) over the entire section S.
- said conduit (5) is of constant section, said walls (32) having openings (320) having substantially said section S, in the plane Y-Z, so as to form conduits (5) of substantially constant section S, from upstream to downstream, on all the partitions hollow (3) simultaneously active for said fire, wherein said level of homogeneity is obtained by a removable distribution means (232) introduced, upstream of said light rotating, at the upstream end of said conduit (5), so as to inject into each conduit (5) said gas flow with said level of homogeneity, in the form of ten flow fractions (7) - 8 fractions illustrated in Figure 5.
- conduit (5) it may be advantageous, to maintain said level of homogeneity over the most long possible length of conduit (5) to use a removable distribution means (212) also downstream of said rotating light, at the downstream end of said duct (5) formed by the succession of hollow partitions (3) active for said fire, so as to draw said flow gaseous without disturbing upstream said level of homogeneity of said gas flow.
- said distribution means (212. 232) can be an enclosure or a parallelepipedic distribution panel (232), of horizontal flat section, in the X-Y plane, chosen so that said enclosure can be introduced vertically into said well (37) of said partition (3) or between two chambers, and of vertical plane section in the plane Y-Z slightly lower than said section S of said partition in the plane Y-Z, having a face parallel to the Y-Z plane provided with openings (2320) with calculated geometry, either to inject said gas flow, in the form of flow fractions (7), with said level homogeneity upstream of said conduit (5), or to aspirate said gas flow downstream of said conduit (5).
- said means for preserving a gas flow of flow D having said level of homogeneity on said section S comprises a plurality elements or spacers (33) fixed to said side walls (38) and distributed, in function of the results of the numerical simulation, in a substantially homogeneous the surface of said side walls (38) in the X-Z plane of said partition or said conduit, in sufficient number to ensure said constant spacing of said walls side (38), so as to divide said gas flow into a number of flow fractions (7) varying from 3 to 20 regularly distributed over the whole of said section S, and to be ensured for said fractions a flow with predetermined orientation, possibly according to said long direction X of the furnace, so as to have a substantially tubular flow (50) on all or part of the conduit (5) according to the method of the invention.
- each fraction of flow (7) possibly group together several elementary nets (6) shown in solid line in FIG. 4.
- said elements or braces (33) may be profiled so to reduce the pressure drop of said gas flow, while ensuring the other functions required to maintain a constant spacing between said side walls (38), and to obtain or maintain for said gas flow said predetermined level of homogeneity on said section S.
- Figures 7a to 7d illustrate, in section in the XZ plane, different profiles of spacers or elements (33a, 33b, 33c, 33d), some (33c and 33d) being oblong in shape with a major axis (330), for facilitate the penetration of the gas flow and reduce its pressure drop.
- the pressure drop P will a priori be in the following order: P 33a > P 33b > P 33c and P 33d .
- FIG. 4a constitutes the plan of construction of the hollow partition (3), like a brick wall, the elements hatched extending transversely (direction Y-Y ') over the entire width (0.5 m) of said partition - width which comprises 0.3m of gas stream and 2 x 0.1m thickness of the hollow partition.
- the oven according to the invention effectively solves the problem posed: whether the consistency of the quality of the carbon blocks, the energy consumption of the oven, or still the life of the furnace, on all these planes, the present invention provides a improvement to existing ovens according to the state of the art.
- the energy consumption of the oven is significantly reduced at the same time thanks to a better temperature uniformity, which avoids unnecessary local overheating, and cause of a lower pressure drop (see Figure 6a).
- the overall gain, both in terms of the energy consumption of the oven and the consumption of refractories, is at least 10%, which is considerable in this type industry.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Tunnel Furnaces (AREA)
- Furnace Details (AREA)
- Carbon And Carbon Compounds (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Furnace Charging Or Discharging (AREA)
- Direct Current Feeding And Distribution (AREA)
- Baking, Grill, Roasting (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Description
- une première portion, notée A, de longueur inférieure à L/2, et de préférence inférieure à L/3 comprenant des moyens (entretoises notamment) pour transformer un flux initial de section So en un flux de section S s'étendant sur toute la section creuse et ayant ledit niveau d'homogénéité, grâce à la formation d'une dizaine de fractions de flux (7);
- une seconde portion, notée B, de longueur au moins égale à L/3 et de préférence au moins égale à L/2, où ledit niveau d'homogénéité est partout atteint :
- une troisième portion, notée C, de longueur aussi réduite que possible, où le flux gazeux se reconcentre, ledit niveau d'homogénéité n'est pas atteint car il peut y avoir localement des concentrations de flux qui peuvent se situer hors de la plage 0,50 D et 0.125.D pour une fraction de la section de 0,25.S.
- la zone A correspond à la formation d'un flux gazeux de section S présentant ledit niveau d'homogénéité, à partir d'un flux gazeux de section So << S,
- la zone B correspond à un écoulement sensiblement tubulaire dudit flux gazeux, qui présente ledit niveau d'homogénéité (avec y = 0,25) sur une longueur L' de la cloison,
- la zone C correspond à la partie où le flux gazeux se reconcentre, passant d'une section S à une section So, au passage du mur entre deux chambres successives.
Claims (8)
- Four à feu tournant (1) à chambres de type ouvert (2) pour la cuisson de blocs carbonés (40) comprenant, dans le sens long X du four, une succession de chambres (2) séparées par des murs transversaux (32) munis d'ouvertures (320), chacune des chambres comprenant, dans le sens travers Y du four, une alternance de cloisons creuses (3) assurant la circulation d'un flux gazeux de réchauffage (35) de gaz de combustion ou un flux gazeux d'air de refroidissement (34), et d'alvéoles (4) contenant les blocs carbonés (40) à cuire, chacune desdites cloisons creuses (3) d'une chambre (2) étant en communication avec une cloison d'une chambre en amont et/ou une cloison d'une chambre en aval, de manière à former un conduit (5) assurant la circulation dudit flux gazeux (34,35), d'amont en aval, dans le sens long X sur l'ensemble des chambres simultanément en activité pour ledit feu tournant, chacune desdites cloisons d'une chambre comprenant, dans le plan X-Z, deux parois latérales verticales (38), et, dans le sens travers Y, des éléments assurant la déflexion dudit flux gazeux parcourant ladite cloison et maintenant un écartement constant desdites parois latérales (38), caractérisé en ce que chaque cloison creuse (3) comprend un moyen pour conserver, sur au moins un tiers de la longueur L de ladite cloison, un flux gazeux de débit D réparti, sur la totalité de la section droite S de ladite cloison creuse (3) dans le plan Y-Z, avec une homogénéité telle que, quelle que soit la fraction y de la section considérée, le débit dans cette fraction de section y.S est compris entre 2y.D et 0,5y.D, la valeur de y étant au plus égale à 0,25, ledit moyen comprenant une pluralité d'éléments ou entretoises (33) fixés aux dites parois latérales (38) et réparties de manière homogène à la surface des dites parois latérales (38) dans le plan X-Z de ladite cloison ou dudit conduit, en nombre suffisant pour assurer ledit écartement constant desdites parois latérales (38), de façon à diviser ledit flux gazeux en un nombre de fractions de flux variant de 3 à 20 régulièrement réparties sur toute ladite section S, et à assurer pour lesdites fractions un écoulement à orientation prédéterminée, éventuellement selon ledit sens long X du four.
- Four selon la revendication 1, comprenant des chambres séparées par un mur transversal (32) présentant des ouvertures de section So (320) assurant le passage dudit flux gazeux (34, 35) d'une cloison à la cloison suivante, et dans lequel chaque cloison comprend, à sa partie amont, un moyen pour obtenir, à partir d'un flux initial de débit D de section So, un flux de section S > So ayant une homogénéité telle que, quelle que soit la fraction y de la section considérée, le débit dans cette fraction de section y.S est compris entre 2y.D et 0,5y.D, la valeur de y étant au plus égale à 0,25.
- Four selon la revendication 2 dans lequel ledit moyen transforme, sur une distance inférieure à la demi-longueur L/2 de ladite cloison, un flux gazeux de débit D et de section initiale So à l'entrée amont de ladite cloison, en un flux de section S au moins égale à 3.So, et présentant ledit niveau d'homogénéité.
- Four selon la revendication 2 dans lequel ledit moyen pour obtenir ledit flux gazeux de débit D et de section S présentant ledit niveau d'homogénéité est constitué d'éléments diviseurs, ou entretoises, divisant, en un nombre d'étapes variant de 2 à 4, ledit flux initial de section So.
- Four selon la revendication 1 dans lequel ledit conduit est de section constante, lesdits murs (32) présentant des ouvertures (320) ayant sensiblement ladite section S, dans le plan Y-Z, de manière à former des conduits (5) de section S sensiblement constante par la succession de cloisons creuses (3) simultanément actives pour ledit feu, dans lequel ledit niveau d'homogénéité est obtenu par un moyen de répartition amovible introduit, en amont dudit feu tournant, à l'extrémité amont dudit conduit (5), de manière à injecter dans chaque conduit (5) ledit flux gazeux avec ledit niveau d'homogénéité.
- Four selon la revendication 5 dans lequel ledit niveau d'homogénéité est obtenu, en outre, en utilisant ledit moyen de répartition amovible introduit, en aval dudit feu tournant, à l'extrémité aval dudit conduit (5) formé par la succession de cloisons creuses (3) actives pour ledit feu, de manière à aspirer ledit flux gazeux sans perturber en amont ledit niveau d'homogénéité dudit flux gazeux.
- Four selon une quelconque des revendications 5 et 6 dans lequel ledit moyen de répartition est une enceinte ou un panneau de répartition parallélépipédique (232), de section plane horizontale, dans le plan X-Y, choisie pour que ladite enceinte puisse être introduite verticalement dans ledit puits (37) de ladite cloison (3) ou entre deux chambres, et de section plane verticale dans le plan Y-Z légèrement inférieur à ladite section S de ladite cloison dans le plan Y-Z, ayant une face parallèle au plan Y-Z munie d'ouvertures (2320) à géométrie calculée, soit pour injecter ledit flux gazeux avec ledit niveau d'homogénéité en amont dudit conduit (5), ou pour aspirer ledit flux gazeux en aval dudit conduit (5).
- Four selon une quelconque des revendications 1 à 4 dans lequel lesdits éléments ou entretoises (33) sont profilés de manière à diminuer la perte de charge dudit flux gazeux, tout en assurant les autres fonctions requises visant à maintenir un écartement constant entre lesdites parois latérales (38), et à obtenir ou conserver pour ledit flux gazeux ledit niveau d'homogénéité prédéterminé sur ladite section S.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9807536 | 1998-06-11 | ||
FR9807536A FR2779811B1 (fr) | 1998-06-11 | 1998-06-11 | Four a feu tournant a flux central tubulaire |
PCT/FR1999/001339 WO1999064804A1 (fr) | 1998-06-11 | 1999-06-08 | Four a feu tournant a flux central tubulaire |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1093560A1 EP1093560A1 (fr) | 2001-04-25 |
EP1093560B1 true EP1093560B1 (fr) | 2003-03-26 |
Family
ID=9527418
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99925058A Expired - Lifetime EP1093560B1 (fr) | 1998-06-11 | 1999-06-08 | Four a feu tournant a flux central tubulaire |
Country Status (17)
Country | Link |
---|---|
US (1) | US6027339A (fr) |
EP (1) | EP1093560B1 (fr) |
CN (1) | CN100445680C (fr) |
AR (1) | AR018655A1 (fr) |
AU (1) | AU745152C (fr) |
BR (1) | BR9911134A (fr) |
CA (1) | CA2334994C (fr) |
DE (1) | DE69906296T2 (fr) |
EG (1) | EG21714A (fr) |
ES (1) | ES2191433T3 (fr) |
FR (1) | FR2779811B1 (fr) |
GC (1) | GC0000056A (fr) |
NO (1) | NO322639B1 (fr) |
NZ (1) | NZ508349A (fr) |
TW (1) | TW432194B (fr) |
WO (1) | WO1999064804A1 (fr) |
ZA (1) | ZA200007066B (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2825455B1 (fr) * | 2001-05-30 | 2003-07-11 | Pechiney Aluminium | Procede et dispositif de refroidissement des alveoles d'un four a chambres |
US7104789B1 (en) * | 2005-03-17 | 2006-09-12 | Harbison-Walker Refractories Company | Wall structure for carbon baking furnace |
EP2129985B8 (fr) * | 2007-09-18 | 2012-10-31 | INNOVATHERM Prof. Dr. Leisenberg GmbH + Co. KG | Procédé et dispositif de récupération de chaleur |
FR2928206B1 (fr) * | 2008-02-29 | 2011-04-22 | Solios Carbone | Procede de detection de cloison au moins partiellement bouchee pour four a chambres |
FR2946737B1 (fr) | 2009-06-15 | 2013-11-15 | Alcan Int Ltd | Procede de regulation d'un four de cuisson de blocs carbones et four adapte a sa mise en oeuvre. |
RU2500961C1 (ru) * | 2009-09-07 | 2013-12-10 | Солиос Карбон | Способ определения характеристик горения в линиях перегородок многокамерной печи с вращающимся пламенем |
FR2963413A1 (fr) * | 2010-07-27 | 2012-02-03 | Alcan Int Ltd | Procede et un systeme de regulation de la cuisson de blocs carbones dans une installation |
RU2600607C2 (ru) * | 2011-09-08 | 2016-10-27 | Солиос Карбон | Устройство и способ оптимизации горения в линиях перегородок многокамерной печи для обжига углеродистых блоков |
US20130108974A1 (en) * | 2011-10-26 | 2013-05-02 | Fluor Technologies Corporation | Carbon baking heat recovery firing system |
FR3135089A1 (fr) * | 2022-04-27 | 2023-11-03 | Fives Ecl | Unité de remplissage de coke de pétrole et procédé de remplissage |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1351305A (en) * | 1919-03-19 | 1920-08-31 | Albert G Smith | Furnace construction |
DE468252C (de) * | 1925-06-18 | 1928-11-09 | Antonius Ludovicus Geldens | Ziegelringofen mit doppelten Trennwaenden zwischen den Brennkammern und in verschiedenen Hoehen angeordneten Roststaeben |
US3975149A (en) * | 1975-04-23 | 1976-08-17 | Aluminum Company Of America | Ring furnace |
US4253823A (en) * | 1979-05-17 | 1981-03-03 | Alcan Research & Development Limited | Procedure and apparatus for baking carbon bodies |
NO152029C (no) * | 1982-11-05 | 1985-07-17 | Ardal Og Sunndal Verk | Ringkammerovn og fremgangsmaate for drift av denne |
FR2535834B1 (fr) * | 1982-11-09 | 1987-11-06 | Pechiney Aluminium | Four a chambres ouvertes pour la cuisson de blocs carbones, comportant une pipe de soufflage |
FR2600152B1 (fr) * | 1986-06-17 | 1988-08-26 | Pechiney Aluminium | Dispositif et procede d'optimisation de la combustion dans les fours a chambres pour la cuisson de blocs carbones |
DE3760518D1 (en) * | 1986-06-17 | 1989-10-05 | Pechiney Aluminium | Process and device to optimize the firing in an open chamber furnace for burning carbonaceous blocks |
FR2629906B1 (fr) * | 1988-04-08 | 1991-02-08 | Pechiney Aluminium | Procede de construction de fours a chambres ouvertes permettant d'eviter leur deformation |
-
1998
- 1998-06-11 FR FR9807536A patent/FR2779811B1/fr not_active Expired - Fee Related
-
1999
- 1999-06-01 TW TW088109060A patent/TW432194B/zh not_active IP Right Cessation
- 1999-06-02 GC GCP1999165 patent/GC0000056A/xx active
- 1999-06-03 US US09/324,859 patent/US6027339A/en not_active Expired - Lifetime
- 1999-06-08 NZ NZ508349A patent/NZ508349A/en unknown
- 1999-06-08 DE DE69906296T patent/DE69906296T2/de not_active Expired - Lifetime
- 1999-06-08 WO PCT/FR1999/001339 patent/WO1999064804A1/fr active IP Right Grant
- 1999-06-08 EP EP99925058A patent/EP1093560B1/fr not_active Expired - Lifetime
- 1999-06-08 AU AU41478/99A patent/AU745152C/en not_active Expired
- 1999-06-08 CN CNB998072729A patent/CN100445680C/zh not_active Expired - Lifetime
- 1999-06-08 CA CA002334994A patent/CA2334994C/fr not_active Expired - Lifetime
- 1999-06-08 ES ES99925058T patent/ES2191433T3/es not_active Expired - Lifetime
- 1999-06-08 BR BR9911134-9A patent/BR9911134A/pt not_active IP Right Cessation
- 1999-06-09 EG EG68299A patent/EG21714A/xx active
- 1999-06-10 AR ARP990102771A patent/AR018655A1/es active IP Right Grant
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2000
- 2000-11-30 ZA ZA200007066A patent/ZA200007066B/en unknown
- 2000-12-07 NO NO20006234A patent/NO322639B1/no not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
AU745152C (en) | 2002-09-26 |
EP1093560A1 (fr) | 2001-04-25 |
US6027339A (en) | 2000-02-22 |
CN1305579A (zh) | 2001-07-25 |
EG21714A (en) | 2002-02-27 |
AR018655A1 (es) | 2001-11-28 |
NZ508349A (en) | 2003-10-31 |
NO20006234L (no) | 2000-12-07 |
ZA200007066B (en) | 2002-02-28 |
CA2334994A1 (fr) | 1999-12-16 |
WO1999064804A1 (fr) | 1999-12-16 |
DE69906296T2 (de) | 2003-12-04 |
CN100445680C (zh) | 2008-12-24 |
NO20006234D0 (no) | 2000-12-07 |
BR9911134A (pt) | 2001-10-23 |
FR2779811A1 (fr) | 1999-12-17 |
CA2334994C (fr) | 2009-02-03 |
ES2191433T3 (es) | 2003-09-01 |
FR2779811B1 (fr) | 2000-07-28 |
AU745152B2 (en) | 2002-03-14 |
NO322639B1 (no) | 2006-11-13 |
GC0000056A (en) | 2004-06-30 |
AU4147899A (en) | 1999-12-30 |
DE69906296D1 (de) | 2003-04-30 |
TW432194B (en) | 2001-05-01 |
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