EP3695036A1 - Ofen und verfahren zur behandlung von material - Google Patents
Ofen und verfahren zur behandlung von materialInfo
- Publication number
- EP3695036A1 EP3695036A1 EP18786323.8A EP18786323A EP3695036A1 EP 3695036 A1 EP3695036 A1 EP 3695036A1 EP 18786323 A EP18786323 A EP 18786323A EP 3695036 A1 EP3695036 A1 EP 3695036A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- flow
- revision
- flow channels
- channels
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 68
- 239000000463 material Substances 0.000 title claims abstract description 9
- 239000000835 fiber Substances 0.000 claims abstract description 22
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 9
- 239000004917 carbon fiber Substances 0.000 claims abstract description 9
- 239000002657 fibrous material Substances 0.000 claims abstract description 9
- 230000001590 oxidative effect Effects 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 27
- 238000004140 cleaning Methods 0.000 claims description 24
- 238000007689 inspection Methods 0.000 claims description 21
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 230000003647 oxidation Effects 0.000 description 20
- 238000007254 oxidation reaction Methods 0.000 description 20
- 230000003750 conditioning effect Effects 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 238000007664 blowing Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 239000012459 cleaning agent Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 244000007853 Sarothamnus scoparius Species 0.000 description 1
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
- D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
- D01F9/32—Apparatus therefor
-
- 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
- F27B9/28—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity for treating continuous lengths of work
-
- 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
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/18—Door frames; Doors, lids, removable covers
- F27D1/1858—Doors
-
- 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
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/18—Door frames; Doors, lids, removable covers
-
- 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
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/18—Door frames; Doors, lids, removable covers
- F27D1/1858—Doors
- F27D1/1866—Door-frames
-
- 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
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/18—Door frames; Doors, lids, removable covers
- F27D1/1858—Doors
- F27D2001/1875—Hanging doors and walls
-
- 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
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/18—Door frames; Doors, lids, removable covers
- F27D1/1858—Doors
- F27D2001/1891—Doors for separating two chambers in the furnace
Definitions
- the invention relates to a furnace for the treatment of material, in particular for the oxidative treatment of fiber material, in particular for the production of carbon fibers, with a) a housing with a housing interior, which is gas-tight except for passage areas for the fibers; b) a process chamber located in the housing interior of the housing; c) an atmospheric device by means of which a hot working atmosphere can be generated and which comprises a flow system with flow channels, which are arranged in the housing interior and each defining a flow space and flow passages, so that the respective flow spaces are fluidly connected to the process space such that hot working atmosphere the process space with at least one main flow direction can be fed and discharged from the process space.
- the invention relates to a method for the treatment of material.
- the flow channels are formed, for example, as blow-in a Einblas issued and suction boxes of a suction device through which the working atmosphere is circulated through the process space.
- the flow spaces of the flow channels contaminate over time, with fiber material depositing, in particular in such flow channels, through which the working atmosphere is extracted from the process space.
- the fiber material is released in the process room and absorbed and removed by the circulated working atmosphere. Therefore, the flow channels or their flow spaces must be checked and cleaned at regular intervals in the context of a revision.
- the flow spaces are accessible only through the flow passages, which in turn can only be reached from the process space. For this purpose, such ovens have access to the process space through which a worker can enter the process space and manually clean the flow spaces of the flow channels there.
- the flow passages of the flow channels are usually equipped with flow flaps to adjust the flow direction and / or the flow volume.
- Such flow flaps are moved for the cleaning process in a cleaning position in which the flow passages are opened as far as possible to provide the worker a largely barrier-free access to the flow spaces of the flow channels After the cleaning process, the flow flaps are moved back to their operating position. There is always the risk of incorrect positioning of the Strömungsklap pen.
- the flow passages of the flow channels are usually relatively narrow, so that access to the flow spaces of the flow channels is limited overall.
- the space in the process room is usually rather cramped and the visibility in the process room rather unfavorable, so that the cleaning can be cumbersome and the cleaning result can only be checked poorly. Also, the worker must wait before the cleaning process until the process room is at an acceptable temperature in order to enter this.
- this makes it possible that a worker no longer has to enter the process space in order to gain access to the flow spaces of flow channels.
- the space and visibility for considerably improved the worker It is also possible to start the cleaning process if even higher temperatures prevail in the process area, which would be unacceptable to the worker. It can also be dispensed with a change of the flow flaps, so that the risk of subsequent cleaning the subsequent failure of the flow flaps is eliminated.
- flow channels comprise at least one inspection access to the flow space; b) the housing comprises at least one revision input, which defines an inner side facing the process space, on which flow channels are arranged such that their access accesses are accessible through the revision entrance.
- the flow channels extend between side walls of the housing. Therefore, it is particularly advantageous if a respective flow channel in the direction transverse to the main flow direction defines a longitudinal axis and a first end side and an opposite second end side and a revision access to the first and / or the second end face is provided. The access then takes place on at least one end face of the flow channel.
- a respective flow channel is at its first end side and /
- the housing preferably comprises at least one revision input in a side wall. This also contributes to the arrangement of the flow channels between the side walls of the housing described above.
- the revision input comprises a housing passage in the housing and a revision gate device, through which the housing passage is releasable or closable.
- the Revisionstor preferably comprises a revision door, which is mounted with a bearing device which is arranged such that the revision door can be pivoted about a particular vertical pivot axis and / or with a horizontal longitudinal movement in the housing passage and back out of this.
- the flow channels arranged on the inside of the revision input have a channel passage opening and the revision system comprises a sealing arrangement by means of which one or more of the channel passage openings can be opened or closed.
- the sealing arrangement is set up such that the channel passage openings of the flow channels arranged on the inside of the revision input can only be released or closed independently or independently of one another simultaneously or in groups. At different revision inputs of the housing different sealing arrangements can be provided.
- revision door If the revision door carries the sealing arrangement with it, can be dispensed with a separate attachment of the sealing arrangement. The sealing arrangement must then not be removed separately and fixed again after the cleaning process.
- the flow spaces can be cleaned with automated secured quality.
- FIG. 1 shows a vertical longitudinal section of an oxidation furnace for the production of carbon fibers along the section line II in Figure 2, which comprises a housing, limiting a process space through which a hot working atmosphere is circulated by means of flow channels extending between side walls of the housing;
- Figure 2 is a horizontal section of the oxidation furnace of Figure 1 along the local
- Section II-II wherein a revision system with revision inputs in the housing and access ports of the flow channels is shown, so that inner flow spaces of one or more flow channels through the housing is accessible;
- FIG. 3 shows the detail of the vertical section in FIG. 1 from the viewing direction of the arrow III in FIG. 2, showing a revision system which comprises a revision door device in the form of an inspection door in the side wall of the housing, which is shown in phantom and behind which Seal arrangement and flow channels can be seen;
- FIG. 4 shows the section of the horizontal section labeled IV in FIG. 2, wherein the
- FIG. 5 shows the detail shown in FIG. 3 with the revision door of the revision system open, it being possible to recognize a sealing arrangement which closes channel passage openings on the end face of all flow channels with a single cover element;
- FIG. 6 shows the detail according to FIGS. 3 and 5 with the cover element removed, so that the channel passage openings of the flow channels can be seen;
- FIG. 7 shows a detail corresponding to FIG. 5 with the revision door open, wherein a modified revision system with a sealing arrangement is shown, which comprises a plurality of cover elements for a respective group of flow channels;
- FIG. 8 shows a detail corresponding to FIG. 5 with the revision door open, wherein a further modified revision system with a sealing arrangement is shown, which comprises a plurality of cover elements for a respective single flow channel;
- FIG. 9 shows a section corresponding to FIG. 4, wherein a modified revision door is shown
- FIG. 10 shows a section corresponding to FIGS. 4 and 9, wherein a modified revision door device is shown, in which the sealing arrangement is coupled to the revision door;
- Figure 1 1 a Figures 4, 9 and 10 corresponding section, where on the one hand a
- Figure 12 shows the detail of Figure 1 1 with a modified revision system, which includes an automated cleaning system.
- Figures 1 and 2 show a vertical longitudinal section and a horizontal section of a furnace for treating material, exemplified as an oxidation furnace 10, which is used for the production of carbon fibers and is oxidatively treated in the fiber material.
- the oxidation furnace 10 comprises a housing 12 which delimits a passage space forming the housing interior 14 of the oxidation furnace 10 by a bottom wall 12a, a top wall 12b and two side walls 12c and 12d.
- the housing interior 14 limiting housing 12 may also form the outer casing of the oxidation furnace. Alternatively, this housing 12 may form an inner housing shell and in turn be surrounded by one or more outer GeHousemänteln.
- the housing 12 in each case an end wall 16 a, 16 b, wherein in the end wall 16 a from bottom to top alternately through holes in the form of horizontal entry slots 18 and exit slots 20 and in the opposite end wall 16b from bottom to top alternately through holes in the form of horizontal exit slots 20 and entrance slots 18 are present, which for the sake of clarity not all carry a reference numerals.
- the entrance and exit slots 18, 20 generally form passage areas of the carbon fiber housing 12. Apart from these passage openings, the housing 12 of the oxidation furnace 10 is gas-tight.
- the housing interior 14 is in turn subdivided into three regions in the longitudinal direction and comprises a first prechamber 24, which is arranged directly next to the end wall 16a, a second prechamber 26, which is immediately adjacent to the opposite end wall 16b.
- a process chamber 28 which is located in the present embodiment between the antechambers 24, 26.
- the antechambers 24 and 26 thus simultaneously form an inlet and outlet lock for the fibers 22 in the housing interior 14 and the process chamber 28.
- the carbon fibers 22 to be treated are fed to the housing interior 14 of the oxidation furnace 10 in parallel as a kind of fiber carpet 30.
- the fibers 22 from a first deflection region 32, which is located outside of the housing 12 adjacent to the end wall 16a, through the uppermost entrance slot 18 in the end wall 16a in the antechamber 24 a.
- the fibers 22 are then through the process chamber 28 and through the opposite antechamber 26 to a second deflection region 34, which is adjacent to the end wall 16b outside of the housing 12, and returned from there.
- the fibers 22 pass through the process space 28 in a serpentine manner over deflection rollers 36 which follow one another from top to bottom, of which only two bear a reference numeral. Between the deflection rollers 36, the fiber carpet 30 formed by the multiplicity of fibers 22 running side by side spans a plane 38 in each case. In the embodiment shown in Figure 1, six such levels 38 are present. The course of the fibers 22 can also be from bottom to top and it can also be more or fewer planes 38 than shown in FIG. 1. In FIG. 2, the third level 38.3 seen from above can be seen, which is therefore also marked in FIG. 1, wherein only a few fibers 22 are shown at a large distance in order to indicate the fiber carpet 30; In practice, the fibers 22 extend in a plane 38 of the fiber carpet 30 at only a small distance from one another.
- the fibers 22 leave the oxidation furnace 10 in the present embodiment through the lowermost exit slot 20 in the end wall 16a. Before reaching the uppermost entrance slit 18 in the end wall 16b and after leaving the oxidation furnace 10 through the lowermost exit slit 20 in the end wall 16b, the fibers 22 are guided outside the housing 12 via further guide rollers not specifically shown.
- the process space 28 is flowed under process conditions of a hot working atmosphere 40, which is constructed by an atmospheric device 42.
- the hot working atmosphere 40 can be generated and passed through the process space 28 so that it flows through the process space 28 under process conditions.
- the working atmosphere is air, which is why synonymously for all gases that contribute to the atmosphere of the oxidation furnace 10, the term air is chosen and is spoken of process air, circulation air, exhaust air, fresh air and the like; but other gases can also be passed through the process space 28.
- the atmospheric device 42 comprises a flow system 46 with flow channels 48 which are arranged in the housing interior 14 and each delimit a flow space 50 and can be guided through the process space 28 by means of which working atmosphere 40.
- the flow system 46 comprises two blowing devices 52 in the central region of the process chamber 28 and a suction device 54 in each of the two end regions on the end faces of the process chamber 28.
- the suction devices 54 are arranged adjacent to the prechambers 24, 26.
- the Injection devices 52 each include the above-mentioned flow channels 48 in the form of a plurality of injection channels 56 and the suction devices 54 each comprise the above-mentioned flow channels 48 in the form of a plurality of suction channels 58.
- the flow channels 48 ie here the blow-in channels 56 and the suction channels 58, are are each arranged between the planes 38 which are spanned by the fiber carpet 30 and extend transversely to the main flow direction 44, so that the flow channels 48 define a longitudinal axis 48a and a first end face 48b and an opposite end face 48c in the direction transverse to the main flow direction 44, which only in FIG and there are designated only at a flow channel 48.
- transverse to the main flow direction 44 means at right angles to the main flow direction 44.
- the flow channels 48 can also run obliquely and not at right angles to the main flow direction 44.
- the flow channels 48 extend between the side walls 12c and 12d of the housing 12. Along this extension direction of its longitudinal axis 48a, the flow channels 48 each have flow passages, which are not visible in the figures due to the cuts, so that the respective flow spaces 50 the flow channels 48 are fluidly connected to the process chamber 28 such that working atmosphere 40 is supplied to the process chamber 28 or discharged from the process chamber 28.
- adjustable flow flaps are arranged in a manner known per se, as described above.
- these flow passages consequently form injection openings, through which process air from the respective flow space 50 of the injection channels 56 enters the process space 28.
- these flow passages correspondingly form suction openings through which the atmosphere flows from the process space 28 into the respective flow space 50 of the suction channels 58.
- the blowing channels 56 and the suction channels 58 are designed as blow-in boxes or as suction boxes and thus as box-shaped flow channels. However, deviating geometries are readily possible.
- the working atmosphere 40 between the suction devices 54 and the blowing devices 52 is conveyed through a circulation line 60 with a blower 62 and flows through a conditioning device 64.
- the conditioning device 64 is exemplified as a heat exchanger 66, since as the conditioning in particular the Temperature of the working atmosphere 40 is adjusted.
- an exhaust air line 68 branches off from the recirculation line 60 with a valve (not shown separately) via which a portion of the circulated working atmosphere 40 can be discharged.
- the proportionately outgoing exhaust air volume is compensated by a fresh air supply means 70, by means of which the Einblas wornen 52 fresh air can be supplied.
- the flow spaces 50 of the flow channels 48 of the flow system 46, and in particular the flow spaces 50 of the suction channels 58 of the suction devices 54, have to be cleaned at regular intervals.
- the oxidation furnace 10 comprises a revision system 72 through which flow spaces 50 of flow channels 48 through the housing 12 are accessible.
- the flow channels 48 comprise inspection accesses 74 to the flow space 50 and the housing 12 has revision inlets 76, which each have an inner side 76a facing the housing interior 14 and an outer wall facing the surroundings of the housing 12. page 76b.
- flow channels 48 are arranged such that their inspection accesses 74 can be reached through the revision input 76.
- the inspection access 74 of the flow channels 48 are provided separately and in addition to the unrecognizable flow passages.
- the inspection accesses 74 of the flow channels 48 are present at one or both of the end faces 48a and 48b, respectively.
- the housing 12 comprises revision inputs 76 in one or more of FIG both of the side walls 12c and 12d
- the onszugang 74 are each arranged in extension of the longitudinal axis 48a of associated flow channels 48 opposite to their respective Revisi.
- each flow channel 48 has only one access access 74 on the front side 48c, which faces the side wall 12c, and the housing 12 correspondingly only includes revision inputs 76 in this side wall 12c.
- revision inputs 76 of the housing 12 in the opposite side wall 12d are already indicated by dashed lines.
- the revision system 72 includes for each revision input 76 of the housing 12 a Ge reheatograph 78 in the housing 12 and a Revisionstor sensible 80, by means of which this housing passage 78 can be released or closed.
- the revision system 72 also includes, for each inspection access 74 of the flow channels 48, a channel passage opening 82 and a sealing arrangement 84 by means of which one or more such channel passage openings 82 can be opened or closed.
- the channel passage openings 82 can only be seen in FIG. 6 when the sealing arrangement 84 is removed.
- the sealing arrangement 84 prevents process air from flowing out of the flow space 50 of the associated flow channel 48 into the process space 28 through the access access 74 or from the process space 28 into the flow space 50, which would lead to undesired turbulence and turbulence in the process space 28.
- the seal assembly 84 may, but need not, be configured to fluid tightly close the channel passage opening 82. In principle, however, a structural coverage of the respective channel passage opening 82 is sufficient.
- FIGS. 3 to 6 Illustrated in FIGS. 3 to 6 is an exemplary embodiment in which the revision door device 80 is formed on a revision input 76 of the housing 12 as a revision door 86, which is fastened to the side wall 12c of the housing 12 by a bearing device 88.
- the bearing device 88 is set up so that the inspection door 86 can be pivoted about a pivot axis 90.
- the bearing device 88 can be designed for this purpose, for example, as a simple pivoting hinge.
- the pivot axis 90 is vertically aligned, but it is also possible a variant in which the pivot axis 90 is aligned horizontally.
- the housing passage 78 is dimensioned such that, viewed in the direction of the longitudinal axes 48a of the flow channels 48, it covers all flow channels 48 which are arranged in the housing interior 14 behind the inspection door 86 on the inside 76a of the revision entrance 76.
- the inspection door 86 is thermally insulating and corresponds in its specification to the housing 12 of the oxidation furnace 10.
- the sealing arrangement 84 is set up in such a way that all channel passage openings 82 can only be released or closed at the same time.
- the sealing arrangement 84 comprises a cover element 92 in the form of a cover plate which covers the end faces 48b of all the flow channels 48 present on the inner side 76a of the revision input 76 and covers the existing channel passage openings 82 of the flow channels 48.
- the channel passage openings 82 are surrounded by a bearing frame 94, so that the cross section of a channel passage opening 82 is smaller than the cross section of the flow space 50 of the associated flow channel 48.
- the sealing assembly 84 ie here the cover 92, with fasteners 96 is detachable at one or more such Bearing frame 94 attached.
- the fastening means 96 are illustrated as screws, but it is also possible to use all other known fastening techniques for a suitable detachable fastening, such as detent or clamp connections.
- the cover may in turn be formed as a pivoting element and be mounted on the flow channels 48 via a corresponding hinge.
- a channel passage opening 82 has the same cross-section as the flow space 50 of the associated flow channel 48.
- the revision door 86 of that revision input 76 of the housing 12 is opened, behind which are to be cleaned or maintained flow channels 48.
- the sealing assembly 84 is then manually removed or moved so that the flow spaces 50 of the flow channels 48 are accessible and accessible through the now exposed channel passage openings 82 from outside the housing 10.
- the sealing assembly 84 is again secured in its sealing position and the inspection door 86 of the housing 12 is closed.
- FIG. 7 shows a modification in which the sealing arrangement 84 is set up such that individual groups of channel passage openings 82 can be released or closed independently of each other.
- the seven flow channels 48 present in total behind the revision input 76 define a first group 98a with three flow channels 48 and a second and a third group 98b, 98c with two flow channels 48.
- the sealing arrangement 84 comprises three cover elements 92a, 92b, 92c, which covers the end faces 48b of the respective groups 98a, 98b and 98c of the flow channels 48 present on the inside 76a of the revision input 76 and cover the existing channel passage openings 82 of the flow channels 48.
- FIG. 1 shows a modification in which the sealing arrangement 84 is set up such that individual groups of channel passage openings 82 can be released or closed independently of each other.
- the seven flow channels 48 present in total behind the revision input 76 define a first group 98a with three flow channels 48 and a second and a third group 98b, 98c with
- FIG. 8 shows a further modification, in which the sealing arrangement 84 is set up in such a way that individual channel passage openings 82 can be independently released or closed. For each channel passage opening 82 is thus an associated and separately attached to the bearing frame 94 of the respective flow channel 48 cover member 92 is present.
- the revision door 86 In the bearing device 88 according to FIGS. 3 to 8, in which the revision door 86 can only be swiveled about the pivot axis 90, the revision door 86 must taper at its vertical longitudinal edges in the direction of the process space 28 in order to provide the necessary freedom of movement for the pivoting movement to obtain. As a result, remain between see the longitudinal edges of the inspection door 86 and the side wall 12c gaps when the inspection door 86 is closed. This can be seen in FIG. 8 and also in FIG. 10 explained below.
- the modified bearing device 88 shown in FIG. 9 offers an alternative in which a higher tightness can be ensured.
- the local storage device 88 is set up such that the inspection door 86 can be moved into and out of the housing passage 78 with a horizontal longitudinal movement.
- the revision door 86 When the revision door 86 is moved out of the housing passage 78, it can be pivoted and thus moved away from the housing passage 78. It can be pivoted about a vertical pivot axis or moved in a parallel displacement; The latter is illustrated in FIG.
- the bearing device 88 is indicated in Figure 9 as a kind of parallelogram, by means of which the movement sequence described is possible.
- FIG. 10 again shows the bearing device 88 according to FIGS. 3 to 8 in a variant in which the sealing arrangement 84 is carried along by the revision door 86.
- the cover element 92 according to FIGS. 3 to 6 is connected to the inner side of the revision door 86 facing the flow channels 48.
- the cover member 92 covers the passageways 82 of the flow channels 48.
- the cover 92 moves with the revision door 86 and is moved away from the flow channels 48, thereby making their passageways 82 accessible.
- Figures 1 1 and 12 illustrate variants of an embodiment in which the flow channels 48 are provided on both end faces 48b and 48c with a channel passage opening 82 and the housing 12 of the oxidation furnace 10 in both side walls 12c, 12d in the corresponding positions associated revision inputs 76, whose inspection doors are not shown. Otherwise, what has been said about the exemplary embodiments described above applies mutatis mutandis.
- the flow spaces 50 can be cleaned with manual cleaning devices 100 of the revision system 72 by one or more plants; in Figure 1 1 two brooms are shown by way of example, in practice, vacuum cleaners are used with which the fiber material is sucked.
- the revision system 72 may also include an automated cleaning device 102.
- an automated cleaning device 102 This is illustrated in FIG. 12, which shows a spray and suction device 104 as an example of such a cleaning device 102.
- This comprises a spray head 106, which is positioned on a first end face 48b of a flow channel 48.
- the spray head 106 can be supplied via a connection unit 108 operating means such as electrical energy, compressed air, cleaning agents and the like.
- a suction head 1 10 of the spraying and suction device 104 is positioned, which sucks and discharges the contaminated with impurities cleaning medium; corresponding lines are not shown for the sake of simplicity.
- the flow channels 48 to be cleaned are formed by the suction channels 58.
- the impurities arise mainly by dissolved fiber material, which is released during the passage of the fibers 22 through the process chamber 28.
- the process space 28 is in fluid communication with the exterior environment of the housing 12 with an open revision door 86 and a released revision input 76.
- the flow channels 48 can zoom up to the housing passages 78 o- also extend into this, wherein the respective transition regions are gas-tight.
- the flow channels 48 are gas-tightly connected at their first end face 48b and / or at their second end face 48c to a revision input 76 of the housing 12.
- the oxidation furnace 10 may also include a monitoring system that monitors with a sensor device and associated control whether the revision inputs 76 of the housing 12 may or may not be opened or whether a revision input 76 is enabled.
- a monitoring system that monitors with a sensor device and associated control whether the revision inputs 76 of the housing 12 may or may not be opened or whether a revision input 76 is enabled.
- interlocking devices may be provided at the revision inputs 76 which, without prior authorization by the control of the monitoring system, prevent a corresponding revision input 76 from being released.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Textile Engineering (AREA)
- Furnace Details (AREA)
- Tunnel Furnaces (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Inorganic Fibers (AREA)
- Treatment Of Fiber Materials (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017123739.9A DE102017123739A1 (de) | 2017-10-12 | 2017-10-12 | Ofen und Verfahren zur Behandlung von Material |
PCT/EP2018/077920 WO2019073053A1 (de) | 2017-10-12 | 2018-10-12 | Ofen und verfahren zur behandlung von material |
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EP3695036A1 true EP3695036A1 (de) | 2020-08-19 |
EP3695036B1 EP3695036B1 (de) | 2024-03-27 |
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EP18786323.8A Active EP3695036B1 (de) | 2017-10-12 | 2018-10-12 | Ofen und verfahren zur behandlung von material |
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US (1) | US20210222331A1 (de) |
EP (1) | EP3695036B1 (de) |
JP (1) | JP7307722B2 (de) |
KR (1) | KR102618775B1 (de) |
CN (1) | CN111465725A (de) |
DE (1) | DE102017123739A1 (de) |
WO (1) | WO2019073053A1 (de) |
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JP2001316946A (ja) * | 2000-05-10 | 2001-11-16 | Mitsubishi Rayon Co Ltd | 耐炎化装置 |
JP2004332155A (ja) | 2003-05-07 | 2004-11-25 | Toho Tenax Co Ltd | 熱処理装置 |
JP4413699B2 (ja) | 2004-07-16 | 2010-02-10 | 東邦テナックス株式会社 | 耐炎化熱処理装置 |
DE102010007481B4 (de) * | 2010-02-09 | 2012-07-12 | Eisenmann Ag | Oxidationsofen |
DE102010044296B3 (de) * | 2010-09-03 | 2012-01-05 | Eisenmann Ag | Oxidationsofen |
CN102758270B (zh) | 2012-06-21 | 2014-05-21 | 合肥日新高温技术有限公司 | 一种高性能碳纤维预氧化炉 |
DE102013015841B4 (de) * | 2013-09-24 | 2020-03-26 | Eisenmann Se | Oxidationsofen |
US9234703B2 (en) * | 2013-12-17 | 2016-01-12 | Honda Motor Co., Ltd. | Automatic charge hearth access door assembly |
DE102014009244B4 (de) * | 2014-06-20 | 2016-07-28 | Eisenmann Se | Oxidationsofen |
ES2638003B1 (es) * | 2016-03-15 | 2018-05-08 | Manuel Torres Martinez | Horno para el tratamiento térmico de filamentos |
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- 2018-10-12 KR KR1020207013557A patent/KR102618775B1/ko active IP Right Grant
- 2018-10-12 WO PCT/EP2018/077920 patent/WO2019073053A1/de unknown
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JP2020537057A (ja) | 2020-12-17 |
KR20200067186A (ko) | 2020-06-11 |
WO2019073053A1 (de) | 2019-04-18 |
US20210222331A1 (en) | 2021-07-22 |
DE102017123739A1 (de) | 2019-04-18 |
EP3695036B1 (de) | 2024-03-27 |
CN111465725A (zh) | 2020-07-28 |
KR102618775B1 (ko) | 2023-12-27 |
RU2020115023A (ru) | 2021-11-12 |
JP7307722B2 (ja) | 2023-07-12 |
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