EP2737092A1 - Rollenwechselvorrichtung für öfen - Google Patents
Rollenwechselvorrichtung für öfenInfo
- Publication number
- EP2737092A1 EP2737092A1 EP12738469.1A EP12738469A EP2737092A1 EP 2737092 A1 EP2737092 A1 EP 2737092A1 EP 12738469 A EP12738469 A EP 12738469A EP 2737092 A1 EP2737092 A1 EP 2737092A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- furnace
- roll
- roller
- housing
- replaced
- 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
- 239000012298 atmosphere Substances 0.000 claims abstract description 46
- 230000001681 protective effect Effects 0.000 claims abstract description 25
- 239000007789 gas Substances 0.000 claims description 32
- 239000011261 inert gas Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 20
- 238000007667 floating Methods 0.000 claims description 19
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 11
- 239000001257 hydrogen Substances 0.000 claims description 11
- 229910052739 hydrogen Inorganic materials 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 239000002737 fuel gas Substances 0.000 claims description 2
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 2
- 238000007669 thermal treatment Methods 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 17
- 238000010438 heat treatment Methods 0.000 description 14
- 229910052757 nitrogen Inorganic materials 0.000 description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- 230000002950 deficient Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000003032 molecular docking Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- 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
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
- F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0012—Rolls; Roll arrangements
-
- 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
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
- F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
- F27B9/2407—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor the conveyor being constituted by rollers (roller hearth furnace)
-
- 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
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
-
- 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
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/02—Skids or tracks for heavy objects
- F27D3/026—Skids or tracks for heavy objects transport or conveyor rolls for furnaces; roller rails
-
- 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
- F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
- F27D7/06—Forming or maintaining special atmospheres or vacuum within heating chambers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49544—Roller making
- Y10T29/49545—Repairing or servicing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53104—Roller or ball bearing
Definitions
- the invention relates to a roll changing device and a method for changing a roll of a furnace for heat treating components and relates to an arrangement of a
- a roller hearth furnace is used for heating and / or
- roller hearth furnaces are very long and are filled inside with gas of a very high temperature.
- gas of a very high temperature for example, in a roller hearth furnace
- a hydrogen protective gas atmosphere (or a hydrogen-nitrogen mixture) may be formed.
- a roll changing apparatus for changing a roll from a plurality of rolls of a furnace for heat-treating components.
- the roll changing device has a lockable (ie sealable to the outside) housing in which a first
- the roll changing device further has a roll handling device, which is at least partially disposed in the housing (but can also be moved out of the housing and, for example, can be retracted into the oven).
- Roller handling device is to dismantle the
- Roll change device having the features described above and the furnace for heat treating components.
- a method for changing a roll from a plurality of rolls of a furnace for heat treating components is provided.
- a first inert gas atmosphere in a lockable housing of a roll changing device is provided.
- Roll handling device of the roll changing device disassembled and mounted a spare roll on the furnace with the roller handling device. During disassembly and during mounting, one or both will remain or remain high temperature
- a corresponding protective gas should have good thermal conductivity, for example hydrogen or helium, in order to heat the annealed material efficiently.
- Heat treatment of annealed material can go.
- the annealed material can go.
- High temperature which is maintained during a roll change or could at least be maintained due to the design of the roll changing device, in a range between 500 ° C and 1200 ° C, i. in the range of an operating temperature of the furnace, lie.
- Interior of furnace and housing is created during the roll change. Likewise, it may well according to the invention also to a certain cooling of the interior of the furnace during the roll change, for example, because a heater
- a roller changing device which has a gas-tight lockable housing with a
- Inert gas filling has, which harmless for a furnace or
- the roll changing device can be connected to the oven at a position of the role to be replaced. It can be done through an opening in the housing through a replacement of the roll. This procedure makes it possible to maintain the protective gas atmosphere in the oven as well as the temperature in the oven, since during the entire changing process the oven interior is only in
- Fire hazard could thus be avoided according to the invention.
- Roller changing device having a movable stage, which is arranged for moving the roller handling device together with the housing relative to the furnace to position the roller handling device relative to the role to be replaced.
- a movable stage allows the roller handling device to be moved to any one of the plurality of rollers of the oven and
- Roller handling device at least partially extendable through a lock in a wall of the housing from the housing to handle the role to be replaced.
- a sealable and selectively disclosed lock in the housing wall allows, from the inside of the housing assembly and
- the lock on the wall of the housing may have an outer housing attachment piece, which is formed attachable to the furnace, thereby a dense, in particular a gas-tight environment, connection between an interior of the housing and an interior of the furnace can be formed ,
- the neck nozzle can include a furnace outside cover of the role to be replaced or record in its interior when this cover is removed before disassembly of the actual reel body.
- the attachment piece can be flange-mounted on the furnace, in particular screwed thereto. This necking can advantageously on a corresponding counterpart to the furnace (for example, a corresponding
- roller handling device can be tilted about one or more axes.
- Roller handling means may, for example, comprise a lance which may be arbitrarily aligned relative to a roller in terms of both translational and rotational degrees of freedom.
- Roller handling device be adapted to exert a sealing pressure on the lid sealing the oven, while at least one fastener (for example, screws) is removed manually or machine controlled by a cover of the roll to be replaced for separating the lid of the oven. If
- Fixing screws or the like are removed from a lid and thus the seal is repealed, by the
- Roll handling device to be adapted to remove a cover of the roll to be replaced from the oven, in particular by means of a driver take off. Furthermore, the
- Roll handling device be set up, the removed Carry cover into the interior of the housing and store it there.
- the roll handling device may be arranged to remove the lid of the roll to be replaced from the oven and to convey it through the attachment piece attached to the oven into the housing.
- the contact pressure of the roller handling device can initially be maintained and the attachment piece can be gas-tightly flanged to the furnace at the corresponding point.
- gas tightness between the oven and housing is ensured throughout.
- the lid can be removed, transported into the housing interior and stored there, for example, in a shelf. All this can be machine or robot controlled.
- Roll handling device to be set up after removing a cover of the role to be replaced in the role to be replaced in the oven and first raise the role to be replaced in the furnace against a movable bearing (provided for geometrically compensating thermal expansion effects).
- the lance of the roll handling device can retract into an internal cavity of the tubular roll, while the roll may engage, for example, three
- Roller handling device to be set up after entering the role to be replaced to move the floating bearing in the interior of the housing and store there, in particular by means of a driver.
- a driver can, for example, on a lance of
- Roller handling device can be installed and can Promote the floating bearing in the interior of the housing effect.
- the docking connection of the housing preferably remains gas-tightly connected to a counterflange of the furnace, so that the removal of the floating bearing does not affect the protective gas atmosphere in the interior of the furnace.
- Roll changing device having a component support means, in particular at least partially disposed inside the housing, for supporting the components (for example, a heat-treated belt) in the furnace at least during a part of the change of the role.
- the role change can be made according to the invention, while the component (for example, a band or other Glühgut) still remains in the interior of the furnace at a high temperature of for example 1000 ° C. If the role is to be replaced, on which the component rests, it should be done before replacing the role first, a support of the component. This task is fulfilled by the component supporting device, which extends from the interior of the housing into the furnace, preferably through the
- Andockstutzen of the housing through is movable and takes over in the meantime the function of the role to be replaced in terms of support function.
- the component support device may be designed to be translationally movable and / or pivotable.
- the component support device selectively in an active (the component supporting) or in a passive (not supporting the component)
- Roller handling device do not interfere with each other.
- the component support means may comprise a tube segment which is retractable into the oven and is pivotable about the roller to be replaced so as to support the components.
- a diameter of the pipe from which the pipe segment is formed is, should this be greater than a diameter of the roller, so that the pipe segment can swing the role.
- the component support device should already take over the support function of the roller, while the roller to be removed is still arranged in the interior of the furnace.
- the component support means may be mounted concentrically or partially concentrically around the roll to be replaced, and may only be swung around inside the furnace so as to support the component from below. This allows a particularly space-saving configuration.
- the pipe segment may have one-sixth or one-fourth of the pipe, that is, one-fourth of the pipe. a 60 ° or 90 ° piece of a full - circumference pipe.
- Component support device has taken over the support function, the role to be replaced is free to be removed from the oven.
- Roll handling device be set up, after releasing the role to be replaced on a floating bearing and a fixed bearing of the furnace and after entering the role to be replaced the
- Each roll may be mounted on the furnace on one side by means of a fixed bearing and on another side by means of a floating bearing.
- the bearing holds the pin in its position, the movable bearing allows thermal expansion in the longitudinal direction.
- a loose bearing is / can be attached to one side and a fixed bearing to the other side, so that thermal expansions can be compensated.
- a fixed bearing for example, to solve by hand. It is important to ensure that after releasing the floating bearing of the role of this part of the furnace gas-tight remains, for which purpose, for example, a sealing screw or the like can be used.
- rollers Store housing. Also, in corresponding shelves or the like space for receiving a corresponding number of defective roles. Also, bearing components or covers of the rollers can be stored in the interior of the housing in order to be able to maintain the protective gas atmosphere even for the replacement of a plurality of rollers.
- Protective gas atmosphere and the second inert gas atmosphere are both substantially free of oxygen.
- Inert gas atmosphere an inert gas atmosphere, in particular a nitrogen atmosphere, and the second inert gas atmosphere a
- Fuel gas atmosphere in particular a hydrogen atmosphere, be.
- a heater for heating the furnace may be, for example, an electric heating unit or a gas heating unit for directly heating the inside of the oven, in particular the protective gas contained therein. It is also a heating unit using electromagnetic radiation as the heating medium possible. During the replacement of a roll, a corresponding heating unit may be selectively shut down or left on.
- a high temperature in the furnace may be maintained that is in a range between about 500 ° C and about 1200 ° C.
- the oven remains gas tight to the laboratory environment and is only in gas communication with the roll changing device.
- these can be equipped with a freely selectable inert gas atmosphere, this can be chosen so that there is no negative effect for the oven.
- Drive unit are removed and the role to be replaced are pressed by means of a gas-tight screw.
- Such Drive unit can be arranged on the outside of the oven and be provided separately for each role. But it is also possible to provide a drive unit for a part of the rollers together or even for all roles together.
- FIG. 1 shows a schematic view of an arrangement of a roll change device and a furnace for heat treating components according to an exemplary embodiment of the invention.
- Fig. 2 shows a spatial view of a
- Embodiment of the invention in combination with a roller furnace.
- FIG. 3 shows the arrangement of FIG. 2 in a different spatial view.
- FIG. 4 shows an exploded view of the arrangement according to FIG. 2, in which some components are omitted and how to position the assembly relative to a roll of furnace to be replaced is shown.
- Fig. 5 shows the arrangement according to FIG. 2 in one
- Fig. 6 shows the arrangement of FIG. 2, wherein the housing is gas-tight screwed to the furnace and is purged with nitrogen.
- FIG. 8 shows the arrangement of FIG. 2 after the removal of the disassembled from the roll lid.
- Fig. 9 shows the arrangement of FIG. 2 when lifting the
- Fig. 10 shows the structure of the floating bearing in the arrangement according to FIG.
- Fig. 11 shows how a tray for supporting a tape support is inserted from the housing into the oven.
- Fig. 12 shows the arrangement according to Fig. 2 in a state in which the shell is already located in the interior of the furnace.
- Fig. 13 shows a fixed bearing side outer wall of the furnace and a drive shaft mounted thereon for driving the roller in front of
- FIG. 14 shows a fixed-side end view of FIG
- Fig. 15 shows the arrangement according to Fig. 2 during the picking up of the roll.
- Fig. 16 shows the arrangement of FIG. 2 after the removal of the removed from the oven roll in the housing.
- Fig. 17 shows how the dismantled roll is stored on a shelf.
- FIG. 18 shows the arrangement according to FIG. 2 during installation of a replacement roller.
- FIG. 19 shows the arrangement according to FIG. 2 during rotation of a belt support.
- FIG. 20 shows the arrangement according to FIG. 2 during extension of the belt support.
- Fig. 21 shows the arrangement of FIG. 2 during replacement of the movable bearing.
- FIG. 22 shows the arrangement according to FIG. 2 before fetching the lid before its re-installation on the stove.
- Fig. 23 shows how the lid is positioned and pressed.
- Fig. 24 shows how the neck nozzle of the housing is released from the oven and the lid is screwed.
- FIG. 25 shows a detailed view of the fixed bearing of the arrangement according to FIG. 2.
- Fig. 1 shows a plan view of an arrangement according to an exemplary embodiment of the invention, which consists of a
- Roller changing device 1 and from a furnace 10 for
- Heat treatment of bands 50 is formed of metal.
- the oven 10 is a roller hearth furnace, in which in a
- the band 50 can for
- Example before being introduced into the oven 10 by a reel (not shown) are unwound and after leaving the oven 10 again on another reel (not shown) to be wound up.
- the furnace 10 has along its longitudinal axis a plurality of rollers 6 for transporting the metal strip 50.
- a length of the furnace 10 from the left to the right end may be, for example, 20 m, 50 m or 100 m.
- the belt 50 is in the furnace 10, it is kept at a high temperature of, for example, 1000 ° C.
- the heating unit 60 may be, for example, an electric heating unit or a gas heating unit.
- Inside the furnace 10 there is a hydrogen protective gas atmosphere. Hydrogen as a good heat conductive gas can efficiently transfer heat from the heating unit 60 to the belt 50.
- the hydrogen can by means of a
- Inert gas atmosphere control unit 40 may be the hydrogen
- Each of the rollers 6 of the oven 10 is at one end by a
- each of the rollers 6 has a separate drive unit 17 which drives the respective roller 6 to rotate thereby to convey the belt 50.
- a common drive unit (not shown).
- the oven 10 is now operated together with the roll changing device 1, which serves to replace individual rolls 6 of the oven 10, for example, if they are defective or in need of maintenance.
- the roll changing device 1 serves to replace individual rolls 6 of the oven 10, for example, if they are defective or in need of maintenance.
- such a change can be carried out without the temperature inside the furnace 10 having to be substantially reduced or the protective gas atmosphere having to be flushed out of hydrogen inside the furnace 10 and replaced by another protective gas. This represents a significant Save time over conventional systems where this is required.
- the roll changing device 1 has a lockable housing 2, in which a protective gas atmosphere of, for example, nitrogen can be formed.
- the housing 2 is hermetically lockable, but can still be controlled from the environment.
- Fig. 1 shows that the housing 2 has a protective gas control interface 52 for supplying and removing inert gas.
- the housing 2 has an electrical interface 54 for the supply and removal of electrical signals (for example
- the interfaces 52, 54 are configured to provide a gas-tight insulation between the interior of the housing 2 and the environment, i. E. that the nitrogen protective gas atmosphere in the interior of the housing. 2
- a roller handling device 4 in the interior of the housing 2 is translationally movable and arranged tiltable, as indicated by arrows in FIG. 1 indicated. Referring to FIG. 2 to FIG. 25 is described in more detail, can by means of such
- Roller handling device 4 a certain of the rollers 6 of the furnace 10 are dismantled and housed inside the housing 2. Further, the roll handling device 4 is capable of having a replacement roll 6 stored inside the housing 2, while maintaining the high temperature in the furnace 10 continuously and maintaining the oxygen-free throughout
- FIGS. 2 and 3 show two spatial views of the arrangement.
- the role-changing device 1 shown there is of a cuboid, gas-tight housing 2 with various fluid and
- the roll changing device 1 is positioned with a platform 8 along a furnace longitudinal axis 9 at the corresponding alternating position and moved up to the furnace 10 (FIGS. 2 to 4).
- the various connections to the furnace 10 are completed.
- the lance 4 moves out of the housing 2 and presses the closure lid 7 of the roller 6, in order to maintain tightness, then the lid screws can be solved (Fig. 5).
- the nozzle 3 moves fully to a furnace flange 12 and over the lid 7 over.
- the Deckelanpressung remains upright by way and pneumatic force balance.
- Flange screw can be tightened again.
- the housing 2 is moved away a bit, but the cover 7 still remains pressed (FIG. 24).
- the cover screw is tightened and the housing 2 is moved back to the stage 8.
- the connections can be re-connected to the oven 10.
- the heartwheel change process is
- Fig. 4 it is shown how the roll changing device 1 is positioned relative to the roll 6 to be replaced in the oven 10. This is done with appropriate movement of the stage 8 to the desired position.
- Fig. 5 shows how the lance 4 of the roll changing device 1 is extended through a lock in a wall of the housing 2 through from the housing 2 to handle the role to be replaced 6 in the oven 10.
- the lock on the wall of the housing 2 on the housing outer side neck 3, which - a furnace outer side cover 7 of the role to be replaced 6 enclosing or receiving - can be sealingly attached to the furnace 10.
- the latter is shown in Fig. 6, where the neck nozzle 3 is screwed gas-tight to the corresponding flange 12 of the furnace 10.
- Oven 10 is mounted. In this state, for example, a flushing of the housing 2 can be carried out with nitrogen.
- Fig. 7 now shows the mandrel of the lance 4, as this is pressed against the cover 7 of the roller 6.
- the spine can be water cooled.
- the actual roller 6 is designed as a hollow cylindrical component 80 between an insulating plug 13 and an outer wall 82 in FIG. 7.
- Fig. 8 shows the arrangement in a state in which the lid 7 together with the insulating plug 13 by an inner lumen of the
- Andockstutzens 3 gas-tight from the interior of the furnace 10 has been transferred to the interior of the housing 2 and in a shelf 5 has been stored (for example, robotically controlled).
- a driver of the lance 4 has deducted this cover 7 from the oven 10 and transferred into the interior of the housing 2.
- a pneumatic spreader 90 in the form of annular circumferential grooves on the mandrel 4 can be seen in Fig. 8 and at a later time from the inside the roller 6 engages to pull them out of the oven 10.
- the annular circumferential slots Versp Sandersungspatenteden can then be extended.
- Fig. 9 it is shown how the lance 4 is operated by means of slight tilting to raise the roller 6. As a result, a relief of the roller 6 take place on the floating bearing 15 on which the roller 6 previously rests. This prepares the subsequent removal of the outer plug. 9, a drive unit 17 of the roller 6, which is positioned outside the furnace 10 and acts on the side of the fixed bearing 19, is shown schematically. A conical end portion 74 of the roller 6 is embedded in a corresponding counterpart of the fixed bearing 19.
- Fig. 10 shows how the outer wall 82 of the roller 6 is expanded together with floating bearing 15 after the shaft 6 has been raised by lifting the shaft 6 by means of the lance 4 and thus has been relieved against the movable bearing 15.
- Fig. 11 now shows how the shell 26, clearly a bent sheet with water cooling (for example, a quarter or a sixth segment of a tube) is handled.
- a trolley 84 which can run along a guide 86 and by means of a
- the tape support tray 26 can be translated and rotated.
- the band support shell 26 engages around the mandrel of the lance 4 on the outside.
- FIG. 12 shows how the rotating device 16 is pivoted when the belt support 26 has been inserted into the interior of the furnace 10.
- the shell 26 is pivoted upward from an underside of the shaft 6 (not shown in FIG. 12).
- a likewise in Fig. 12 not shown tape as a thermally treated component on the underside of the as Tube piece trained band support tray 26 are supported. This then allows a subsequent roll removal, without the tape would have to be removed from the oven 10.
- Fig. 13 shows a drive shaft 17 for driving the
- FIG. 14 shows an enlarged view of the roller 6 in the region of the fixed bearing 19.
- the roller 6 can be pressed off by means of a gas-tight screw 30. Furthermore, a lateral locking element 18 is shown.
- Fig. 15 shows how the roller 6, which is now also free on the fixed bearing side, is received.
- the roller 6 is connected to the in Fig. Spreader 90 shown attached to the lance 4, and the roller 6 is then retracted from the oven 10 into the housing 2 and stored in shelf 5.
- FIGS. 16 and 17 show how the roller 6 is in the housing 2.
- Fig. 21 then shows how the floating bearing 15 is installed. Then, as shown in FIG. 22, the lid 7 is picked up, as shown in FIG. 23, the lid 7 is positioned and pressed, the case 2 is released from the oven 10 and the lid 7 is screwed (FIG. 24).
- Reference numeral 79 provided.
- a spherical roller bearing 81 is also shown.
- shaft seals 83 can be seen.
- Cooling fins 85 are also shown.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Tunnel Furnaces (AREA)
- Furnace Details (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011079771.8A DE102011079771B4 (de) | 2011-07-25 | 2011-07-25 | Rollenwechselvorrichtung und Verfahren zum Wechseln einer Rolle für Öfen |
PCT/EP2012/064620 WO2013014201A1 (de) | 2011-07-25 | 2012-07-25 | Rollenwechselvorrichtung für öfen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2737092A1 true EP2737092A1 (de) | 2014-06-04 |
EP2737092B1 EP2737092B1 (de) | 2016-10-12 |
Family
ID=46579037
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12738469.1A Active EP2737092B1 (de) | 2011-07-25 | 2012-07-25 | Rollenwechselvorrichtung für öfen |
Country Status (11)
Country | Link |
---|---|
US (1) | US20140165404A1 (de) |
EP (1) | EP2737092B1 (de) |
JP (1) | JP2014523972A (de) |
KR (1) | KR20140039335A (de) |
CN (1) | CN103764855A (de) |
BR (1) | BR112014001632A2 (de) |
CA (1) | CA2843033A1 (de) |
DE (1) | DE102011079771B4 (de) |
RU (1) | RU2014106618A (de) |
TW (1) | TW201323813A (de) |
WO (1) | WO2013014201A1 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3048403B1 (de) | 2015-01-20 | 2017-11-29 | LOI Thermprocess GmbH | Tragrollenwechselvorrichtung und Verfahren zum Tragrollenwechsel |
DE202015100232U1 (de) | 2015-01-20 | 2015-02-05 | Loi Thermprocess Gmbh | Tragrollenwechselvorrichtung |
EP3048405A1 (de) | 2015-01-20 | 2016-07-27 | LOI Thermprocess GmbH | Tragrollenwechselvorrichtung |
EP3048404B1 (de) | 2015-01-20 | 2018-04-11 | LOI Thermprocess GmbH | Tragrollenwechselvorrichtung und Verfahren zum Tragrollenwechsel |
AT14633U1 (de) * | 2015-01-20 | 2016-02-15 | Loi Thermprocess Gmbh | Tragrollenwechselvorrichtung |
DE202015100250U1 (de) | 2015-01-21 | 2015-02-27 | Loi Thermprocess Gmbh | Tragrollenwechselvorrichtung |
DE202015100286U1 (de) | 2015-01-22 | 2015-03-02 | Loi Thermprocess Gmbh | Tragrollenwechselvorrichtung |
DE202015100501U1 (de) | 2015-02-03 | 2015-02-25 | Loi Thermprocess Gmbh | Tragrollenwechselvorrichtung |
CN104976890A (zh) * | 2015-05-28 | 2015-10-14 | 海宁奇晟轴承有限公司 | 一种网带回火炉 |
CN109576472B (zh) * | 2017-09-29 | 2020-07-28 | 宝山钢铁股份有限公司 | 一种热处理炉炉辊快速更换装置 |
US10830536B2 (en) | 2018-03-15 | 2020-11-10 | Ford Motor Company | Roller transport assembly for transporting rollers to and from a roller hearth furnace |
CN114396796B (zh) * | 2022-01-14 | 2024-02-23 | 南京科达新控仪表有限公司 | 一种带氮气保护的推板炉双闸门进料装置及其使用方法 |
CN115305337A (zh) * | 2022-08-27 | 2022-11-08 | 湖南湘钢工程技术有限公司 | 钢厂中厚板热处理炉热态更换炉辊工艺 |
CN115519519A (zh) * | 2022-09-20 | 2022-12-27 | 北京机科国创轻量化科学研究院有限公司 | 一种专门用于炉辊拆装的折叠架 |
Citations (2)
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DE3230115A1 (de) | 1982-08-13 | 1984-02-16 | Ruhrgas Ag, 4300 Essen | Verfahren zum auswechseln der rollen eines durchlauf-rollenherdofens sowie ofen zum durchfuehren des verfahrens |
DE69809312T2 (de) | 1997-02-27 | 2003-09-04 | Stein Heurtey S.A., Ris Orangis | Einrichtung zur Ersetzung einer Bandträgerrolle in einem Wärmebehandlungsofen |
Family Cites Families (14)
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DE3004806C2 (de) | 1980-02-09 | 1981-11-19 | Sundwiger Eisenhütte Maschinenfabrik Grah & Co, 5870 Hemer | Verfahren und Vorrichtung zum Auswechseln von Tragrollen in Rollenherd-Durchlaufglühöfen |
DE3738317C1 (en) | 1987-11-11 | 1988-12-22 | Didier Eng | Supporting-roller arrangement for reheating furnaces for steel strips produced in the CSP process |
DE4041217A1 (de) | 1989-12-23 | 1991-07-11 | Reining Heisskuehlung Gmbh & C | Durchlaufofen und verfahren zur wartung der rollen eines durchlaufofens |
IT1262219B (it) * | 1993-10-19 | 1996-06-19 | Danieli Off Mecc | Rulli a doppio supporto per forni di riscaldo e/o mantenimento |
FI107940B (fi) | 1999-08-04 | 2001-10-31 | Outokumpu Oy | Laite käsiteltävän materiaalin kannattamiseksi jatkuvatoimisissa lämpökäsittelyuuneissa |
JP4564197B2 (ja) * | 2001-03-27 | 2010-10-20 | 中外炉工業株式会社 | カテナリー型連続熱処理炉用ロール取替え装置 |
KR100823588B1 (ko) * | 2001-12-22 | 2008-04-21 | 주식회사 포스코 | 소둔로의 내부 허스롤 교체장치 |
KR100887085B1 (ko) * | 2002-07-04 | 2009-03-04 | 주식회사 포스코 | 고온 소둔로의 허스롤 도어 자동개폐장치 |
KR101072522B1 (ko) * | 2009-04-24 | 2011-10-12 | 주식회사 포스코 | 롤 교체장치 |
KR20100117535A (ko) | 2009-04-24 | 2010-11-03 | 주식회사 코림 | 박리화된 다층형 무기 나노입자를 함유하는 열전사 인화리본 및 그의 제조방법 |
JP5038386B2 (ja) | 2009-12-18 | 2012-10-03 | 中外炉工業株式会社 | カテナリ型炉 |
CN102002569B (zh) | 2010-11-03 | 2012-12-19 | 中冶南方(武汉)威仕工业炉有限公司 | 辊底式钢板热处理炉炉外换辊的方法及其装置 |
AT511034B1 (de) | 2011-02-04 | 2013-01-15 | Andritz Tech & Asset Man Gmbh | Verfahren zum kontrollieren einer schutzgasatmosphäre in einer schutzgaskammer zur behandlung eines metallbandes |
DE202012013282U1 (de) | 2012-09-04 | 2015-11-20 | Schwartz Gmbh | Tragmittel für Öfen |
-
2011
- 2011-07-25 DE DE102011079771.8A patent/DE102011079771B4/de not_active Expired - Fee Related
-
2012
- 2012-07-11 TW TW101124848A patent/TW201323813A/zh unknown
- 2012-07-25 JP JP2014522084A patent/JP2014523972A/ja not_active Withdrawn
- 2012-07-25 BR BR112014001632A patent/BR112014001632A2/pt not_active IP Right Cessation
- 2012-07-25 RU RU2014106618/02A patent/RU2014106618A/ru not_active Application Discontinuation
- 2012-07-25 CN CN201280037208.XA patent/CN103764855A/zh active Pending
- 2012-07-25 US US14/234,557 patent/US20140165404A1/en not_active Abandoned
- 2012-07-25 CA CA2843033A patent/CA2843033A1/en not_active Abandoned
- 2012-07-25 WO PCT/EP2012/064620 patent/WO2013014201A1/de active Application Filing
- 2012-07-25 KR KR1020147004937A patent/KR20140039335A/ko not_active Application Discontinuation
- 2012-07-25 EP EP12738469.1A patent/EP2737092B1/de active Active
Patent Citations (2)
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DE3230115A1 (de) | 1982-08-13 | 1984-02-16 | Ruhrgas Ag, 4300 Essen | Verfahren zum auswechseln der rollen eines durchlauf-rollenherdofens sowie ofen zum durchfuehren des verfahrens |
DE69809312T2 (de) | 1997-02-27 | 2003-09-04 | Stein Heurtey S.A., Ris Orangis | Einrichtung zur Ersetzung einer Bandträgerrolle in einem Wärmebehandlungsofen |
Non-Patent Citations (1)
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See also references of WO2013014201A1 |
Also Published As
Publication number | Publication date |
---|---|
CN103764855A (zh) | 2014-04-30 |
EP2737092B1 (de) | 2016-10-12 |
WO2013014201A1 (de) | 2013-01-31 |
RU2014106618A (ru) | 2015-08-27 |
KR20140039335A (ko) | 2014-04-01 |
US20140165404A1 (en) | 2014-06-19 |
CA2843033A1 (en) | 2013-01-31 |
DE102011079771A1 (de) | 2013-01-31 |
DE102011079771B4 (de) | 2016-12-01 |
JP2014523972A (ja) | 2014-09-18 |
BR112014001632A2 (pt) | 2017-02-21 |
TW201323813A (zh) | 2013-06-16 |
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