EP2670897A1 - Oxidationsofen - Google Patents
OxidationsofenInfo
- Publication number
- EP2670897A1 EP2670897A1 EP12700930.6A EP12700930A EP2670897A1 EP 2670897 A1 EP2670897 A1 EP 2670897A1 EP 12700930 A EP12700930 A EP 12700930A EP 2670897 A1 EP2670897 A1 EP 2670897A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- deflection
- air
- oxidation furnace
- furnace according
- fibers
- 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
- 230000003647 oxidation Effects 0.000 title claims abstract description 64
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 64
- 239000000835 fiber Substances 0.000 claims abstract description 95
- 238000000034 method Methods 0.000 claims abstract description 80
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 15
- 239000004917 carbon fiber Substances 0.000 claims abstract description 15
- 230000001590 oxidative effect Effects 0.000 claims abstract description 5
- 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 claims abstract description 4
- 239000011521 glass Substances 0.000 claims description 44
- 238000012423 maintenance Methods 0.000 claims description 17
- 238000001816 cooling Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000003570 air Substances 0.000 description 114
- 239000012080 ambient air Substances 0.000 description 8
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 230000000295 complement effect Effects 0.000 description 4
- 210000003323 beak Anatomy 0.000 description 3
- 230000001143 conditioned effect Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 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
-
- 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
-
- 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
Definitions
- the invention relates to an oxidation furnace for the oxidative treatment of fibers, in particular for the production of carbon fibers, with a housing which is gas-tight except for passage areas for the carbon fibers; a process space located in the interior of the housing; at least one air supply device with which hot air can be injected into the process space;
- Deflection rollers which flank the process chamber (28) and the fibers as a carpet next to each other run serpentine through the process space, wherein the fiber carpet between opposite pulleys each spans a plane.
- the pulleys can be arranged either in the interior of the housing or outside of the housing.
- the air supply device is configured such that hot air is discharged into an area between the deflection rollers and the process space in a direction toward the process space.
- the carbon fibers cool down somewhat on their way via a deflection roller, since they have left the process space and are no longer exposed to hot air released by the air supply device.
- the energy required to operate the oxidation furnace can only be used to repeat the fibers to the required To heat oxidation temperature.
- the temperature of the pulleys and the fibers guided over it is kept at a higher value until the fibers re-enter the process space.
- the fibers also remain at their path over the pulleys at a process temperature at which the oxidation can proceed.
- the deflection rollers are arranged in a deflection region of the housing, which is at least fluidically separated from the process space. In this way, regardless of the flow in the process space for a constant temperature be ensured at the pulleys.
- exhaust air is discharged from the process space.
- the hot air can be used on the one hand in addition to compensate for the volume removed.
- the hot air helps to maintain the process temperature in the process space energy-efficient, since the area of the process space in which the hot air enters into this does not cool. If flow directing means are present between the deflection region and the process space, the hot air from the supply air device can be directed to the process space and the different levels of the fiber carpet.
- the deflection rollers can be shielded by a housing element from the ambient atmosphere of the oxidation furnace, there is no or only a reduced heat exchange with the environment of the oxidation furnace. This can increase the effectiveness.
- the housing element is arranged on the side of the deflection rollers remote from the process space such that a flow channel for hot air is formed between the housing element and the deflection roller.
- the deflection can be viewed from the outside and it can always be checked visually whether the fibers run properly on the pulleys or not.
- At least one housing element is a plate pivotably mounted about a horizontal axis.
- At least one housing element may be a releasably attached removable panel.
- At least one housing element may be a member placed on the side of the deflection roller, which is remote from the process space, over the guide pulley. Moreover, it may be advantageous if at least one housing element is a disk element rotatably mounted about a vertical axis.
- the air supply device is set up in such a way that hot air can optionally be conducted to the side of one of the deflection rollers remote from the process space, or instead of hot air cooling air can be conducted to the side of one of the deflection rollers remote from the process space. If the airflow can be interrupted or if cooling air is added leads, the area that must be reached by the maintenance person, cool down and access from the outside is safely possible.
- the air supply device comprises a plurality of Zuluft tannin which are arranged between the planes of the fiber carpet and are fed by a fresh air source.
- Zu Kunststoff sake can then be displaced in the horizontal direction between an operating position in which they deliver hot air to the side remote from the process space of the pulleys, and a different maintenance position thereof.
- the Zu Kunststoffhimsten work together with removable from the deflection air ducts. Hot air is only directed to the pulleys when the air ducts are present.
- the air supply means includes a plurality of flap members disposed between the layers of fiber carpet and fed by a source of fresh air and delivering hot air through an exit slot, the flap members being disposed between an operative position in which the exit slot is proximate to a plane of the fiber carpet, and a maintenance position, in which the exit slot further from this plane, are pivotable about a horizontal axis.
- Figure is a horizontal section through the oxidation furnace of Figure 1 according to the section line II-II there;
- FIG. 1 shows the section of Figure 1 corresponding vertical sections of deflection at opposite ends of the oxidation furnace in an enlarged scale.
- FIG. 4 shows a horizontal section of a lock deflection region according to FIG. 3 along the section line IV-IV there, wherein an injection box is shown partly broken away;
- FIG. 5 shows sections corresponding to the sections according to FIG. 3 of deflection regions at opposite ends of an oxidation furnace according to a second exemplary embodiment;
- FIG. 6 shows a horizontal section of a lock deflection region according to FIG. 5 along the section line VI - VI there, wherein blow boxes are shown partially broken away;
- FIG. 7 shows sections corresponding to the sections according to FIG. 3 of deflection regions at opposite ends of an oxidation furnace according to a third exemplary embodiment;
- FIG. 8 shows a horizontal section of a lock deflection area according to FIG. 7 along the section line VIII - VIII there, wherein a deflection roller is shown partially broken away;
- Figure 9 is a partial front
- FIG. 10 shows sections corresponding to the sections according to FIG. 3 of deflection regions at opposite ends of an oxidation furnace according to a fourth exemplary embodiment
- Figure 11 is a horizontal section of a lock deflection area of Figure 10 along the local
- FIG. 12 shows sections corresponding to the sections according to FIG. 3 of deflection regions at opposite ends of an oxidation furnace according to a fifth exemplary embodiment
- FIG. 13 shows a horizontal section of a lock deflection region according to FIG. 12 along the same
- FIG. 14 shows sections corresponding to the sections according to FIG. 3 of deflection regions at opposite ends of an oxidation furnace according to a sixth exemplary embodiment
- Figure 15 is a horizontal section of a lock deflection area of Figure 12 along the section line XV-XV.
- the oxidation furnace 10 includes a housing 12 having a Interior of the oxidation furnace 10 forming fürlaufhoffm 14 by means of two vertical longitudinal walls 12a, 12b, a ceiling wall 12c and a bottom wall 12d limited.
- the housing 12 At its front ends 12e and 12f, the housing 12 in each case has an opening 16, via which the passage clearance 14 is basically accessible from the outside. Over always remaining passages 18a, 18b in the region of the left end 12e in FIGS. 1 and 2, fibers 20 are led into and out of the passage clearance 14.
- the vertical longitudinal wall 12b separates the fürlauf syndromem 14 from a side of this lying shipsleitraum 22, whose limitation is only partially indicated in Figure 2 and there also only by dashed lines.
- the passage chamber 14 is in turn subdivided into three regions in the longitudinal direction and comprises a first deflection region 24, which is adjacent to the front end 12e, a second deflection region 26, which is adjacent to the opposite front end 12f, and a process space 28 located between the deflection regions 24, 26.
- the fibers 20 to be treated are fed to the passage chamber 14 of the oxidation furnace 10 in parallel running as a kind of "carpet".
- the fibers 20 pass through a guide roller 30 mounted outside of the furnace housing 12 and pass through the passage 18a provided in a lower region of the opening 16 of the front end 12a into the first deflection region 24.
- the fibers 20 are then returned through the process space 28 and through the second deflection region 26 and from there.
- the fibers 20 pass through the process space 28 in a serpentine fashion from the bottom to the top following deflection rollers 32, which follow the course of the fibers from below above with 32a, 32b, 32c, 32d, 32e are designated.
- deflection rollers 32a, 32c, 32e lying parallel one above the other with their axes are provided, and two such deflection rollers 32b, 32d are provided in the first deflection region 24.
- the fiber carpet formed by the fibers 20 spans one plane in each case.
- the fibers 20 leave the oxidation furnace 10 through the passage 18a, which remains in the upper region of the opening 16 of the front end 12e.
- the fibers 20 are guided outside the oven housing 12 via a further guide roller 34.
- the first deflection region 24 thus simultaneously forms an inlet and outlet lock for the fibers 20 in the passage clearance 14 or the process space 28.
- the first deflection region 24 is a first Zu poverty with 36 and the second deflection region 26 is associated with a second Zu poverty with 38, which are traversed by the fibers 20 on their respective path through the first and the second deflection region 24 and 26 respectively.
- Zu Kunststoffesten 36, 38 the process preheated fresh air is supplied; on the supply air devices 36, 38 will be discussed in more detail below.
- louvers 40 are each located between the spanned by the fiber carpet 20 levels and extend between the longitudinal walls 12a, 12b of the furnace housing 12.
- Each louver 40 is individually or via a linkage coupled to a respective horizontal pivoting axle 42 pivotally, which passes through the longitudinal walls 12a, 12b of the furnace housing 12 and is supported outside of this. This can be seen in FIG.
- a blowing device 44 and in each of the two outer end regions of the process chamber 28 a suction device 46 are arranged, which are each adjacent to the louvers 40.
- the inflator 44 and comprises a plurality of blow boxes 44a and the suction means 46 comprise a plurality of suction boxes 46a, each disposed between the planes spanned by the fiber carpet 20 and extending between the longitudinal walls 12a, 12b of the furnace housing 12, only a few of which are denoted by reference numerals are provided.
- the air is conveyed into the air duct 22, in which it is processed and conditioned in a manner not of further interest here.
- the air in each case passes to the injection device 44.
- this air flows in the opposite direction to the suction means 46, whereby two circulation air circuits are closed, which are illustrated in Figure 2 by corresponding arrows.
- the deflection regions 24, 26 and the process chamber 28 are thus fluidly separated from each other by the air guide flaps 40.
- the deflection regions 24, 26 and in FIG. 4 the first deflection region 24 are shown on an enlarged scale.
- 32 are arranged in the first deflection region 24 at one level below the lower guide roller 32b, between the two guide rollers 32b, 32d and above the upper guide pulley Zu Kunststoffkarsten 50 of the first air supply device 36 with a rectangular cross-section, between the longitudinal walls 12a, 12b of the furnace housing 12 and extend perpendicular to these.
- corresponding Zu povertyurasten 50 of the second Zu poverty spur 38 are also arranged with a rectangular cross section on each level above the lower guide roller 32a, between the two guide rollers 32a, 32c and above the upper guide roller 32e.
- Each Zu povertyurasten 50 is connected via its own channel nozzle 52 with flap valve with a fresh air source 54, from which the Zu poverty reliesten 50 can be fed with conditioned preheated fresh air.
- the Zu povertyurasten 50 have on their pointing in the direction of the front ends 12e and 12f of the furnace housing 12 each side exit slots 50a, which extend in the longitudinal direction of the respective Zu povertykastens 50 and through which supplied fresh air exits upwards and / or downwards.
- the Zu povertyurasten 50 are also mounted on guide rails 56 which extend horizontally and attached to the longitudinal walls 12a, 12b of the furnace housing 12. On the Füh ⁇ securing rails 56, the Zulufturasten can be moved horizontally between an operating position and a maintenance position 50th
- the Zu poverty hosten 50 are connected to their respective duct stub 52 and arranged so that the emerging from the exit slots 50 a fresh air is directed to that side 58 of the guide rollers 32 a, 32 b, 32 c, 32 d, 32 e, which is spaced from the process space 28.
- the hot air flows over the respective deflection roller 32 a, 32b, 32c, 32d, 32e and the fibers 20, before it enters the process space 28, and then flows further through the deflection region 24 and 26 to the louvers 40.
- channel nozzle 52 may also be made flexible and be carried along with the respective Zu povertykasten 50.
- each deflection roller 32b, 32d or 32a, 32c, 32e are mounted on the front ends 12e, 12f of the furnace housing 12 each about a horizontal axis 60 between an open position and a closed position pivotable glass plates 62.
- the glass plates 62 are shown in front of the pulleys 32d and 32e in the closed position and the glass plates 62 in front of the pulleys 32a, 32b, 32c in the open position.
- the glass plates 62 shield the deflection regions 24, 26 from the ambient atmosphere of the oxidation furnace 10.
- the deflection regions 24, 26 can also be viewed from the outside, so that it can always be checked whether the fibers 20 are properly guided by the deflection rollers 32.
- the supply air boxes 50 assume their operating position and the glass plates 62 are tilted into their closed position.
- the openings 16 at the front ends 12e, 12f of the furnace housing 12 in this arrangement of Zu Kunststoffkalsten 50 and the glass plates 62 are sealed gas-tight.
- the cooperating components so end walls of the furnace housing 12 are formed.
- the flap valves in the channel stub 52 are open and the Zu poverty tanninsten 50 of Zu Kunststoffen 36, 38 are thus Edinburghschlagt ⁇ from the fresh air source 54 with hot fresh air.
- This hot fresh air flows from the outlet ⁇ slots 50a of Zu Kunststoffkarsten 50 first on the remote from the process chamber 28 page 58 of the guide rollers 32a, 32b and 32c, 32d, 32e and on the inner surface of the glass plates 62 over before it to the air guiding flaps 40 and continues to flow into the process space 28.
- the deflection rollers 32b, 32d or 32a, 32c, 32e and the fibers 20 guided thereon are completely surrounded by hot fresh air. This prevents that the deflection rollers 32b, 32d or 32a, 32c, 32e and the ge ⁇ led fibers 20 in the deflection areas 24, 26 outside of the process space 28 cool down and the latter must first warm to the process temperature when first or re-entry into the process chamber 28, which is required for the oxidation process.
- the inner surfaces of the glass plates 62 are heated by the hot fresh air, thereby preventing that there undesirable condensate separates, which exits the carbon fibers 20.
- the Zu povertyurasten 50 may have further correspondingly arranged outlet openings, can be passed through the hot air to these glass panes, so that there is a condensate formation is prevented.
- each air-guiding flap 40 assumes a position in which only a small gap remains between its upper or lower edge and the fiber carpet 20 passing there, around the deflecting regions 24, 26 by the highest possible flow velocity of the incoming hot air from the process space 28 to separate. In addition, such a good contact of the fiber carpet 20 with the hot fresh air can be ensured.
- the cracked fiber 20 can still be linked to an adjacent fiber 20 in the ongoing oxidation process since, on the one hand, the deflection regions 24 and 26 are accessible from the outside via the glass plates 62 and, on the other hand, the supply air devices 36, 38 are arranged so that the deflection rollers 32b, 32d or 32a, 32c, 32e and the fibers 20 guided thereon to a temperature cool down, where they can be safely touched and handled by a maintenance person.
- a suction nozzle 65 is provided with a valve flap, through which the hot air located in the deflection region 24, 26 can be sucked off quickly by means of a suction not specifically shown. As a result, the cooling of the deflection rollers 32 and the carbon fibers 20 can be accelerated.
- the location where a loose end of a ruptured carbon fiber 20 is located may be detected by known sensor techniques. From this it can be deduced, over which of the deflection rollers 32a, 32b, 32c, 32d, 32e the loose end of the broken fiber 20 is guided next. For example, assume that the loose end of the broken fiber 20 will next pass to the lowermost diverting pulley 32b in the first diverting region 24.
- the channel nozzle 52 is closed, which leads to the lowest supply air box 50 in the first deflection region 24.
- This supply air box 50 is then moved to its maintenance position, as shown in Figure 3.
- the region of the passage 16, in which the respective air box 50 was arranged becomes free.
- an access from the outside to the deflection roller 32a for a maintenance person is thus already created.
- a flow path for cooler ambient air from the ambient atmosphere of the oxidation furnace 10 is opened.
- an air flow upright preserver ⁇ th wherein ambient air is sucked in due to the reduced supply of fresh air, which is indicated in Figure 3 by an arrow PI.
- the ambient air flows into the deflection region 24 and past the deflection roller 32b.
- the deflection roller 32b and the fibers 20 guided thereon are cooled.
- the loose end of the broken fiber 20 now reaches the deflection roller 32b, it can be picked up by a maintenance person at a moderate temperature and linked to an adjacent fiber 20.
- the glass plate 62 is previously tilted into its open position, which is arranged in front of the deflection roller 32b.
- this glass plate 62 is tilted back into its closed position and the lowest supply air box '50 moves back to its operating position in front of the duct nozzle 52, which is then opened again.
- the cracked fiber 20 is associated with an adjacent fiber 20 and both fibers 20 must be placed on each subsequent guide roller 32 in a particular track, can be proceeded in the opposite deflection region 26 accordingly.
- the underside of the middle deflection roller 32c in the second deflection region 26 must first be accessed.
- the lowest supply air box 50 is brought into its maintenance position and the two glass plates 62 are tilted in front of the deflection rollers 32a and 32c into their open position. This can also be seen in FIG.
- the cooler ambient air sucked in there is illustrated by an arrow P2.
- modified deflection regions 24 and 26 of the oxidation furnace 10 are shown as a second exemplary embodiment.
- heat insulation 68 is present, which is isolated in the operating position of Zu povertyurasten 50 against the ambient atmosphere of the oxidation furnace 10.
- the thermal insulation 68 can be used as a holder for the glass plates 62.
- FIGS 7 and 8 show as a third embodiment again modified deflection regions 24, 26 of the oxidation furnace 10.
- the Zu povertyurasten 50 stationarily approximately centrally between the respective end wall 12e, 12f and the louvers 40 of the deflection regions 24, 26 are arranged.
- the Zu povertyurasten 50 on its side facing the respective end wall 12e or 12f side an outlet beak 70 having an exit slot 70a on, which extends over the entire length of the Zu povertykastens 50.
- box-like air duct boxes 72 are arranged in the areas above and below between the spanned by the fiber carpet 20 levels, in each case a plurality of Lucas arrangements- boxes 72 are present side by side. This can be seen in FIG.
- the air duct boxes 72 On their in the direction of the end wall 12e and 12f of the furnace housing 12 side facing the air duct boxes 72 each have an outlet slot 72a, which corresponds to the exit slot 50a of ZuLiteklasten 50 of Figures 3 to 6 and in the longitudinal direction of the respective air duct box 72 and thus transversely to Flow direction of the fresh air flowing out of the ZuLiteklasten 50 runs.
- This exit slot 72a supplied fresh air can escape back up and / or down, as shown in Figure 7 by corresponding arrows in the deflection regions 24, 26 and.
- the air duct boxes 72 have an inlet 72b, which is complementary to the outlet beak 70 of the Zu poverty nosten 50 and receives this in operation, so that hot fresh air from the Zu povertyurasten 50 in the air duct boxes 72 and from there to the side 58 of the pulleys 32a, 32b, 32c, 32d, 32e flows.
- the air duct boxes 72 and the guide rollers 32a, 32b, 32c, 32d, 32e are covered by removable glass plates 74, through which the oven housing 12, again apart from the inlet and outlet areas of the fiber carpet 20, gas-tight.
- the glass plates 74 may extend over substantially the entire width of the oven housing 12 or segmented complementary to the air duct boxes 72 be. In the latter case, only that glass plate 74 can then be removed, which is located in front of the section of the respective deflection region 24, 26, to which access is required.
- the air duct boxes 72 are releasably secured in the deflecting regions 24, 26 as a kind of hanging boxes by means of not specifically shown attachments and can be removed from the deflecting regions 24, 26 via the passages 16, 18 ' in the end walls 12e, 12f of the oven housing 12.
- the suction nozzle 65 is provided in the longitudinal wall 12a.
- the Zu povertyurasten 50 may also have a plurality of juxtaposed outlet lugs in a modification, each through a complementary passage in the Air duct boxes 72 can protrude into this.
- a closure flap can be present at these outlet lugs, which is moved by a spring in front of the outlet opening of a corresponding outlet nose when its associated air guide box 72 is removed. If this air guide box 72 is returned to its position in front of the supply air box 50, this flap is pushed aside against the spring force, so that the air path through the exit nose in the air guide box 72 is free.
- FIGS. 10 and 11 again modified deflection regions 24, 26 of the oxidation furnace 10 are shown in FIGS. 10 and 11.
- pulleys 32a, 32b, 32c, 32d, 32e although stored beyond the front ends 12e, 12f of the furnace housing 12, but surrounded by removable glass tubs 76 which seal against the here also stationary Zu Kunststoff Kosten 50.
- the glass troughs 76 are each slipped over the deflection rollers 32 from the side 58 of the deflection rollers 32, which lies away from the process space 28.
- a flow channel 78 is formed in each case.
- a baffle plate 79 is present in each case, so that hot air from the ZuLiteklasten 50 on the fibers 20 and the baffle 79 underneath in the flow channel 78 and above to the process chamber 28 remote side 58th each deflection roller 32a, 32b, 32c, 32d, 32e passes.
- a corresponding glass trough 76 is removed, as is the case, for example, with the deflection roller 32b in the deflection region 24 is shown.
- the frosting diverter roller 32 may then cool in the ambient atmosphere of the oven housing 12 such that the fibers 20 may be handled by a service person.
- the duct connection 52 is closed, ambient air is sucked into the deflection region 24 or 26 and there ensures cooling of the fibers 20 that are flowed around by the ambient air.
- FIGS. 12 and 13 again modified deflection regions 24, 26 of the oxidation furnace 10 are shown as a fifth exemplary embodiment.
- the fresh air source 54 feeds no displaceable or stationary Zu povertyurasten, but pivoting Klap ⁇ pen wing 80, which extend in the space between the planes of the fiber carpet 20 and between the longitudinal walls 12 a, 12 b of the furnace housing 12.
- pivoting Klap ⁇ pen wing 80 which extend in the space between the planes of the fiber carpet 20 and between the longitudinal walls 12 a, 12 b of the furnace housing 12.
- flap wings 80 are provided with a reference numeral.
- the flap wings 80 have an outlet slot 80a, through which hot air is discharged onto the side 58 of the deflection rollers 32a, 32b, 32c, 32d, 32e remote from the process space 28.
- the flap wings 80 are mounted pivotably about a horizontal axis.
- the flap wings 80 may assume an operative position in which the respective exit slot 80a is in close proximity to an associated plane of the fiber carpet 20. *** " From this operating position, the flap wings 80 can be pivoted into a maintenance position in which the respective outlet slot 80a lies further away from the associated fiber carpet plane.
- the passages 16 at the front ends 12e, 12f are again closed by removable glass plates 66 in this embodiment.
- a glass plate 66 arranged in the normal operation of the oxidation furnace 10 in front of the deflection roller 32b is not shown in FIG. Again, the glass plates 66 may be segmented again, as indicated in Figure 13.
- the corresponding glass plate 66 is removed and the flap wings 80, which flank the associated deflection roller 32 at the top and bottom, are pivoted into their maintenance position. This allows access to the fibers 20 and removes the hot air from the accessed fibers 20.
- the supply of hot fresh air to the respective flap wings 80 may be interrupted for the duration of the access or the hot air may be replaced by cooling air.
- the flap wings 80 can be supplied via the fresh air source 54 optionally with hot air from a channel 54a or cool air from a channel 54b.
- the deflecting roller 32 in question can be cooled faster by cooling air than without this measure.
- a corresponding design of the fresh air source 54 is also possible in all other described embodiments.
- FIGS. 14 and 15 show, as a sixth exemplary embodiment, again modified deflecting regions 24, 26 of the oxidizing agent. furnace 10.
- a supply air box 50 is arranged at a level below the uppermost level of the fiber carpet 20, which has two outlet slots 50a, so that hot air is discharged upwards and downwards.
- Another supply air box 50 with an upwardly directed exit slot 50a is arranged in the first deflection region 24 at a level below the lowest level of the fiber carpet 20.
- only a single supply air box 50 is located in the second deflection region 26; this is located at a level above the top level of the fiber carpet 20 and has a downwardly directed exit slot 50a.
- the corresponding glass fin 84 is twisted. As described above, ambient air is sucked into the respective deflection region 24, 26 by the resulting opening, as a result of which the portion of the deflection rollers 32a, 32b, 32c, 32d, 32e and the fibers 20 running therefrom, cooled by this cooler ambient air, cool to a temperature at which they are manageable.
- a folding wall 86 may be used, which may also consist of a plurality of separate folding elements, as shown in FIG 15 in a region of the passage 16 of the deflection region 24 is shown.
- the glass plates 62, 66 and 74 and the glass troughs 76 and the glass fins 84 form in the respective embodiments housing elements of the furnace housing 12, by which the guide rollers 32 can be screened on their respective remote from the process chamber 28 side 58 relative to the ambient atmosphere of the O xidationsofens 10 ,
- the fibers 20 can be heated by the hot air from the Zu Kunststoff Rhein 36, 38 in the deflection regions 24, 26 to a temperature above the actual process temperature in the process chamber 28.
- two or more oxidation furnaces are frequently connected in series in the direction of the fibers, wherein the furnaces may be arranged one after the other in succession or else one above the other.
- the exit opening for the fibers of a first furnace can be connected via a gas-tight channel to the inlet opening of a second furnace, so that cooling of the fibers is also prevented on their way from one furnace to the next furnace.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Tunnel Furnaces (AREA)
- Inorganic Fibers (AREA)
- Treatment Of Fiber Materials (AREA)
- Furnace Details (AREA)
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201110010298 DE102011010298B3 (de) | 2011-02-03 | 2011-02-03 | Oxidationsofen |
| PCT/EP2012/000116 WO2012104011A1 (de) | 2011-02-03 | 2012-01-12 | Oxidationsofen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2670897A1 true EP2670897A1 (de) | 2013-12-11 |
| EP2670897B1 EP2670897B1 (de) | 2014-12-10 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| EP20120700930 Active EP2670897B1 (de) | 2011-02-03 | 2012-01-12 | Oxidationsofen |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US9139936B2 (de) |
| EP (1) | EP2670897B1 (de) |
| KR (1) | KR101874662B1 (de) |
| DE (1) | DE102011010298B3 (de) |
| ES (1) | ES2531246T3 (de) |
| RU (1) | RU2585644C2 (de) |
| WO (1) | WO2012104011A1 (de) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010007481B4 (de) * | 2010-02-09 | 2012-07-12 | Eisenmann Ag | Oxidationsofen |
| DE102011010298B3 (de) * | 2011-02-03 | 2012-06-14 | Eisenmann Ag | Oxidationsofen |
| JP5704241B2 (ja) * | 2012-06-27 | 2015-04-22 | 三菱レイヨン株式会社 | 炭素繊維束製造用炭素化炉および炭素繊維束の製造方法 |
| DE102013015841B4 (de) * | 2013-09-24 | 2020-03-26 | Eisenmann Se | Oxidationsofen |
| DE102014009244B4 (de) * | 2014-06-20 | 2016-07-28 | Eisenmann Se | Oxidationsofen |
| DE102014009243B3 (de) | 2014-06-20 | 2015-11-19 | Eisenmann Ag | Oxidationsofen |
| US10676847B2 (en) * | 2014-11-07 | 2020-06-09 | Illinois Tool Works Inc. | Discharge nozzle plate for center-to-ends fiber oxidation oven |
| KR102266615B1 (ko) * | 2014-11-17 | 2021-06-21 | 삼성전자주식회사 | 전계 효과 트랜지스터를 포함하는 반도체 소자 및 그 제조 방법 |
| DE102014018178A1 (de) * | 2014-12-09 | 2016-06-09 | Eisenmann Se | Thermische Nachverbrennungsanlage |
| RU2648316C2 (ru) * | 2016-07-28 | 2018-03-23 | Общество с ограниченной ответственностью Научно-производственный центр "УВИКОМ" (ООО НПЦ "УВИКОМ") | Печь окисления полиакрилонитрильных волокон для изготовления углеродных волокон |
| DE102016116057A1 (de) | 2016-08-29 | 2018-03-15 | Eisenmann Se | Oxidationsofen |
| CN106637516B (zh) * | 2016-12-21 | 2019-04-02 | 湖南顶立科技有限公司 | 预氧化炉热风循环系统 |
| DE102017123739A1 (de) | 2017-10-12 | 2019-04-18 | Eisenmann Se | Ofen und Verfahren zur Behandlung von Material |
| RU180584U1 (ru) * | 2017-11-29 | 2018-06-19 | Андрей Борисович Морозов | Устройство непрерывной термоокислительной стабилизации длинномерных волокнистых материалов |
| CN108746610B (zh) * | 2018-05-31 | 2021-04-13 | 遵义中铂硬质合金有限责任公司 | 硬质合金成形剂脱除工艺 |
| WO2020189029A1 (ja) * | 2019-03-19 | 2020-09-24 | 東レ株式会社 | 耐炎化熱処理炉、耐炎化繊維束および炭素繊維束の製造方法 |
| IT202000005230A1 (it) * | 2020-03-11 | 2021-09-11 | M A E S P A | Modulo compatto per la filatura ad umido di fibre chimiche |
| RU2741008C1 (ru) * | 2020-09-09 | 2021-01-22 | Акционерное общество «НПК «Химпроминжиниринг» | Способ мониторинга процесса термостабилизации ПАН-прекурсора в процессе получения углеродного волокна и устройство для его осуществления |
| KR102319723B1 (ko) * | 2021-02-19 | 2021-11-03 | 주식회사 원준 | 탄소섬유를 제조하기 위한 섬유의 산화처리를 위한 산화로 |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB805303A (en) * | 1954-12-13 | 1958-12-03 | Segor | Improvements in heating apparatus |
| US2873393A (en) * | 1957-03-28 | 1959-02-10 | Westinghouse Electric Corp | Dual-ventilation hydrogen-cooled generators |
| US4143468A (en) * | 1974-04-22 | 1979-03-13 | Novotny Jerome L | Inert atmosphere chamber |
| JPS55102452A (en) * | 1979-02-01 | 1980-08-05 | Kubota Ltd | High temperature gas treatment device |
| US4515561A (en) * | 1983-03-07 | 1985-05-07 | Despatch Industries, Inc. | Fiber treatment oven |
| US4559010A (en) * | 1984-05-01 | 1985-12-17 | Toray Industries, Inc. | Apparatus for producing oxidized filaments |
| KR920700318A (ko) * | 1989-02-23 | 1992-02-19 | 나가이 야따로 | 내염화 처리장치 |
| US5263265A (en) * | 1989-10-23 | 1993-11-23 | Despatch Industries | Convection/radiation material treatment oven |
| JP2731665B2 (ja) * | 1992-04-16 | 1998-03-25 | 日立テクノエンジニアリング株式会社 | リフローはんだ付け装置 |
| EP1041182B1 (de) * | 1996-12-16 | 2003-03-26 | Toray Industries, Inc. | Garnführer Rolle |
| JP3868907B2 (ja) * | 2001-03-26 | 2007-01-17 | 東邦テナックス株式会社 | 耐炎化熱処理装置、及び同装置の運転方法 |
| US6776611B1 (en) * | 2002-07-11 | 2004-08-17 | C. A. Litzler Co., Inc. | Oxidation oven |
| US20070077840A1 (en) * | 2005-09-30 | 2007-04-05 | Industrial Technology Research Institute | Novel fibers, high airtightness fabrics and a fabrication method thereof |
| JP2007271137A (ja) * | 2006-03-30 | 2007-10-18 | Fujifilm Corp | 塗布膜の乾燥方法及び装置並びに光学フィルムの製造方法 |
| DE102010007481B4 (de) * | 2010-02-09 | 2012-07-12 | Eisenmann Ag | Oxidationsofen |
| DE102010034869B4 (de) * | 2010-08-19 | 2025-04-10 | Haimer Gmbh | Turbo-Trocknung durch Luftmesser |
| DE102010044296B3 (de) * | 2010-09-03 | 2012-01-05 | Eisenmann Ag | Oxidationsofen |
| DE102011010298B3 (de) * | 2011-02-03 | 2012-06-14 | Eisenmann Ag | Oxidationsofen |
-
2011
- 2011-02-03 DE DE201110010298 patent/DE102011010298B3/de not_active Expired - Fee Related
-
2012
- 2012-01-12 WO PCT/EP2012/000116 patent/WO2012104011A1/de not_active Ceased
- 2012-01-12 ES ES12700930T patent/ES2531246T3/es active Active
- 2012-01-12 KR KR1020137021549A patent/KR101874662B1/ko not_active Expired - Fee Related
- 2012-01-12 RU RU2013139660/05A patent/RU2585644C2/ru not_active IP Right Cessation
- 2012-01-12 US US13/983,348 patent/US9139936B2/en not_active Expired - Fee Related
- 2012-01-12 EP EP20120700930 patent/EP2670897B1/de active Active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2012104011A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2585644C2 (ru) | 2016-05-27 |
| WO2012104011A1 (de) | 2012-08-09 |
| US9139936B2 (en) | 2015-09-22 |
| EP2670897B1 (de) | 2014-12-10 |
| KR20140004177A (ko) | 2014-01-10 |
| RU2013139660A (ru) | 2015-03-10 |
| KR101874662B1 (ko) | 2018-07-04 |
| US20140026437A1 (en) | 2014-01-30 |
| ES2531246T3 (es) | 2015-03-12 |
| DE102011010298B3 (de) | 2012-06-14 |
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