EP2245405B1 - Toreinheit sowie hochtemperaturofen mit einer solchen - Google Patents

Toreinheit sowie hochtemperaturofen mit einer solchen Download PDF

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Publication number
EP2245405B1
EP2245405B1 EP09714185A EP09714185A EP2245405B1 EP 2245405 B1 EP2245405 B1 EP 2245405B1 EP 09714185 A EP09714185 A EP 09714185A EP 09714185 A EP09714185 A EP 09714185A EP 2245405 B1 EP2245405 B1 EP 2245405B1
Authority
EP
European Patent Office
Prior art keywords
high temperature
gate
gate panel
door leaf
furnace
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP09714185A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2245405A1 (de
Inventor
Karl Berner
Peter Obstfelder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eisenmann SE
Original Assignee
Eisenmann SE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Eisenmann SE filed Critical Eisenmann SE
Priority to PL09714185T priority Critical patent/PL2245405T3/pl
Publication of EP2245405A1 publication Critical patent/EP2245405A1/de
Application granted granted Critical
Publication of EP2245405B1 publication Critical patent/EP2245405B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/007—Partitions
    • 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
    • F27B9/02—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity of multiple-track type; of multiple-chamber type; Combinations of furnaces
    • F27B9/028—Multi-chamber type furnaces
    • 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
    • F27B9/02—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity of multiple-track type; of multiple-chamber type; Combinations of furnaces
    • F27B9/029—Multicellular type furnaces constructed with add-on modules

Definitions

  • Such high temperature furnaces are used in the form of vacuum furnaces for firing articles which have to be fired in successive furnaces in different gas atmospheres with partly very low gas pressures. In such high-temperature furnaces temperatures of up to 1800 ° C can prevail during the firing process.
  • a sealing element for example, a silicone gasket is used in known door units, which has a temperature resistance of 240 ° C to a maximum of 300 ° C. If now firing material has to be transferred from one furnace zone to the next, the two adjacent furnace zones must first be evacuated, so that unwanted gas mixing does not occur when the gate leaf is opened. Optionally, the furnace zones may be flooded with an inert gas prior to opening the door leaf.
  • the two adjacent oven zones must be brought to the same pressure level before opening the door leaf. Also, in non-low pressure furnaces, where two adjacent furnace zones are flooded with different operating gases during firing, these two furnace zones enclosing a lock chamber must then be evacuated prior to opening the gate; Afterwards, a pressure equalization must be carried out, for which purpose the furnace zones can optionally be filled with an inert gas.
  • the door leaf After transferring the fuel from the first furnace zone in the second furnace zone, the door leaf is closed again and the oven must be heated accordingly back to its operating temperature of 1500 ° C to 1800 ° C.
  • the object of the invention is therefore to provide a door unit and a high-temperature furnace of the type mentioned, by which or in which the transfer of fuel from a first furnace zone in a second furnace zone can be done faster and with less energy.
  • the harmful influence is given in high-temperature furnaces and especially in vacuum furnaces, in particular by thermal radiation, which can strike the sealing element.
  • thermal radiation powers of up to 500 kW / m 2 are achieved.
  • the oven temperature must not be lowered before the door leaf between its open position and its closed position can be moved.
  • the door leaf can therefore be moved at normal operating temperature of the high-temperature furnace without the sealing element being damaged.
  • the entire period of time required for the transfer of combustible material from a first furnace zone into a second furnace zone adjacent thereto is shortened since neither a cooling phase nor a phase for reheating the furnace tunnel is required.
  • the energy is saved, which had to be expended to the previously necessary reheating.
  • the protective means are designed as a cooling structure, by which at least a portion of the sealing element can be shielded against heat radiation.
  • the cooling structure is a hollow profile through which a cooling medium can flow.
  • a cooling medium water is preferably used.
  • the protection means are relatively opposite the door leaf are movable. This can serve, for example, that at least a portion of the sealing element in the closed position of the door leaf of the protection means is releasable.
  • the pertinent portion of the sealing element in the closed position of the door leaf for example by stationary structural measures, such as a cooled counter surface, be protected against thermal radiation, which are provided on the oven, in which the gate unit is used.
  • the door leaf has a first main surface and a second main surface extending parallel thereto, wherein in at least the edge region of at least one main surface a circumferential groove is recessed, in which a sealing ring is seated.
  • the sealing ring is tubular and can be inflated and emptied, the sealing ring can run in deflated and thus slackened state below the main surface of the door leaf, in which the corresponding groove is recessed. In the inflated state, the sealing ring then presses out of the groove beyond the corresponding main surface of the door leaf and can thus seal against the corresponding counter surface.
  • the sealing element cooperates with counter surfaces formed by the guide structure. If the guide structure is formed, for example, as a guide rail with an inwardly open U-profile, then the inner edges of the U-profile can serve as a counter surface for the sealing element.
  • the researcherssstrüktur comprises a perpendicular to the direction of travel of the door leaf receiving, of which the door leaf is received with at least a portion of the sealing element when it assumes its closed position.
  • the protective means are arranged in the closed position of the door leaf closer to the atmosphere to be shielded than the portion of the sealing element to be shielded.
  • guide-structure shielding means which shield portions of the guide structure extending in the region of the furnace tunnel from the atmosphere in the furnace tunnel when the door leaf is in its open position and / or Torblatt shielding means are provided, which the door leaf against the atmosphere shield in the furnace tunnel when the door leaf is in its open position.
  • the guide structure shielding means and / or the door leaf shielding means comprise pivotable shielding flaps.
  • These shielding flaps can advantageously be arranged to assume a position in which they shield the door leaf against the atmospheres prevailing in the furnace zones when the door leaf assumes its closed position; In particular, a shielding of the door leaf against heat radiation can be ensured thereby.
  • the shielding flaps and the closed door leaf are in a kind of sandwich-order along the furnace tunnel when the door leaf assumes its closed position. In this way, compared to the furnace zones cooler door leaf or the cooler outer surface of a heat insulation of the door leaf leads to less cooling in his or her neighborhood.
  • the guide structure shielding means which can shield the door leaf flanking portions of the guide structure and also the above-mentioned recording, it is advantageous if these comprise at least one device with two flaps, which are each pivotable about an axis of rotation which is parallel to the flaps to be shielded sections of the guide structure extends.
  • a total of 10 evacuated vacuum furnace with a furnace housing 12 is designated.
  • a furnace tunnel 14 extends through the furnace housing.
  • the latter has successive different furnace zones in which different gas atmospheres with partly very low gas pressures can prevail, as is known in and of itself.
  • FIGS. 1 . 3 and 4 two successive furnace zones in the conveying direction 16 in the form of a first furnace zone 18 and a second furnace zone 20, between which a transition region 22 is arranged.
  • the transition region 22 between the furnace zones 18 and 20 can be selectively released or closed, with the furnace zones 18 and 20 being separated from one another gas-tight in the latter case.
  • kiln material is conveyed through the kiln tunnel 14, for which purpose the kiln can rest directly on the rollers 26 or can be guided through the vacuum kiln 10 in appropriate fueling stations or vessels.
  • the furnace housing 12 is lined in the area of the furnace tunnel 14 inside with a refractory material 28, which allows operating temperatures of the vacuum furnace 10 of up to 1800 ° C.
  • the floor level of the two furnace zones 18 and 20 lies in a common horizontal floor level 30, whereas the floor 32 in the transition area 22 between the furnace zones 18 and 20 is lowered relative to the floor level 30.
  • the gate unit 24 comprises a door leaf 34 with two opposite perpendicular to the conveying direction 16 extending main surfaces 36, 38, two side edges 40, 42 and an upper edge 44 and a lower edge 46.
  • the door leaf 34 extends through a bottom 32 in the transition region 22 opposite Passage 48 in the oven housing 12 upwards into a door housing 50.
  • the door leaf 34 is connected to a pneumatic lifting device 52 of no further interest. Through this, the door leaf 34 vertically between his in the FIGS. 1 and 2 shown open position and its in the FIGS. 3 to 5 shown closed position to be moved.
  • circumferential grooves 54 and 56 are recessed.
  • an elastic tubular inflatable silicone gasket 58 and 60 is inserted, which can withstand temperatures up to about 300 ° C maximum.
  • the silicone gaskets 58 and 60 are inflated by passing through gas, for which purpose inlet and outlet connections, not shown here, are present.
  • the silicone seals 58 and 60 are dimensioned so that they run in the slackened state, ie without gas flowing through them, below the main surface 36 and 38 of the door leaf 34 in the groove 54 and 56, respectively. When inflated, the silicone gaskets 58 and 60 protrude beyond the major surfaces 36 and 38 of the door leaf 34, respectively.
  • the door leaf 34 carries on its side edges 40 and 42 guide plates 62 and 64, which are parallel to the conveying direction 16 and each protrude beyond the main surface 36 and the main surface 38 of the door leaf 34, which in FIG. 4 can be seen.
  • the door leaf 34 runs in a vertical section of a guide structure 66.
  • the vertical section of the guide structure 66 is formed in the region of the oven tunnel 18 by two guide ribs 68, 70 arranged on each side of the door leaf 34, which form the door leaf 34 flanked in the conveying direction 16 front and rear (see. FIG. 4 ).
  • the vertical portion of the guide structure 66 as extending to the right and left of the door leaf 34 groove 72 in the not provided here with a reference numeral, parallel to the conveying direction 16 extending side walls of the door housing 50 is formed.
  • the vertically extending portions of the silicone seals 58 and 60 in the door leaf 34 are of the guide ribs 68 and 70 (see. FIG. 4 ) flank within the grooves 72.
  • the respective guide ribs 68 and 70 located on both sides of the furnace housing 12 are connected by bottom ribs 74 and 76 extending between the side walls of the furnace housing 12.
  • the lower vertical portions of the silicone seals 58, 60 are flanked by the bottom ribs 74 and 76, respectively.
  • the door leaf 34 is water-cooled in a manner known per se. For this purpose it is traversed by a channeled through by cooling water channel system, which is not shown here.
  • the door leaf 34 can be retracted with its heat-sensitive silicone gaskets 58 and 60 in the furnace tunnel 14 in the transition region 22 without the silicone gaskets 58, 60 are destroyed at the temperatures prevailing in the furnace tunnel 14 temperatures of up to 1800 ° C, the silicone gaskets 58 and 60 are protected from the high temperatures.
  • the gate unit 24 comprises a protective cover 80 with two partial covers 82, one of which is arranged on each major surface side of the door leaf 34.
  • each Part cover 82 comprises as a cooling structure a U-shaped hollow profile 84, whose one side portion 86 is connected at its free end with a water inlet 88 and the other side portion 90 at its free end with a water outlet 92, so that the hollow section 84 can be flowed through with cooling water ,
  • the water inlet 88 and the water outlet 92 are formed as flexible hoses, whereby a relative movement of the protective cover 80 opposite to this is possible.
  • the lower portion 94 of the hollow profile 84 connecting the side portions 86 and 90 is parallel to the lower edge 46 of the door leaf 34.
  • the side portions 86 and 90 of the hollow profile 84 are offset inwardly from the vertical portions of the silicone gasket 58.
  • the hollow profile 84 and the area framed therefrom are of a heat protection mat 96 of e.g. Graphite felt covered, which extends in the vertical direction from the lower portion 94 of the hollow profile 84 to just below the junctions to the water inlet 88 and the water outlet 92 of the side portions 86 and 90 of the hollow section 84.
  • the heat shield mat 96 carries at its upper edge a projecting cover 100.
  • the lining of refractory material 28 coaxial with the passage 48 in the furnace housing 12 has a passage 102 whose cross section is selected so that only a small distance to the heat shields 96 of the protective cover 80 remains.
  • the protective cover 80 can be moved together with the door leaf 34 in the vertical direction, but in turn is vertically movable relative to the door leaf 34. This is for each Operaableung 82 provided for the sake of clarity, servo motor not shown.
  • the protective cover 80 assumes a vertical position, in which the lower portion 94 of the hollow profile 84 is flush with the lower edge 46 of the door leaf 34 below.
  • the lower portion 94 of the hollow profile 84 covers the parallel to the lower edge 46 of the door leaf 34 extending portion of the silicone seal 58 from.
  • a ceiling flap 104 is provided in the transition region 22 in the in FIG. 1 shown open position of the door leaf 34 projects this and the protective cover 80 through the passage 48 in the furnace housing 12 and the passage 102 in the refractory material 28 a little into the transition region 22 in the furnace tunnel 14 into it.
  • a ceiling flap 104 is provided in the transition region 22 in the furnace tunnel 14 into it.
  • This can by means of a servo motor, not shown, between an upper position in which it is present in a horizontal plane just below the passage 102 in the refractory material 28 (see. FIG. 1 ) and a folded down position in which it clears the way for the door leaf 34 with the protective cover 80 into the furnace tunnel 14 (see. FIG. 3 ), are pivoted.
  • the axis of rotation of the ceiling flap 104 is arranged in the transition region 22 on the side of the first furnace zone 18 and extends in a horizontal plane perpendicular to the conveying direction 16.
  • a two-leaf door 106 is further arranged.
  • Their door flaps 106a, 106b can be pivoted by means of a servo motor 108 about a respective vertical axis of rotation, which is arranged in the transition region 22 on the side of the second furnace zone 20, between a first position and a second position.
  • the door flaps 106a, 106b are arranged parallel to the conveying direction 16 (cf. FIG. 1 ), whereas in the second Position are arranged perpendicular to the conveying direction 16 (see. Figures 3 and 4 ).
  • the bottom receptacle 78 can be covered or released in the transition region 22 by a double-leaf bottom flap 110.
  • the bottom flap 110 comprises two curved wing flaps 112, 114, which are arranged such that their outwardly curved surfaces point into the interior of the furnace tunnel 14.
  • the wing flaps 112 and 114 extend along the bottom receptacle 78 between the guide ribs 68 and 70 disposed on each side of the furnace tunnel 14.
  • the wing flaps 112, 114 abut each other in the covering position of the bottom flap 110 with their opposite longitudinal sides FIG. 1 can be seen.
  • guide rails 116 pointing downwards are attached to the wing flaps 112, 114.
  • Whose end of the wing flaps 112, 114 remote end is rotatably mounted about a horizontal axis of rotation, which is perpendicular to the conveying direction 16.
  • the door housing 50 has an intermediate ceiling 120 with a passage 122 through which the door leaf 34 passes.
  • the false ceiling 120 is arranged at such a height that when the door leaf 34 its in FIG. 3 shown closed position, which are flanked along the upper edge 44 of the door leaf 34 extending portions of the silicone gaskets 58 and 60 of the respective adjacent inner circumferential surface of the passage 122.
  • the passage 122 is dimensioned such that the inflated silicone seals 58, 60 seal against the inner circumferential surface of the passage 122.
  • the door housing 50 is divided into an upper space 124 and a lower space 126.
  • a holding-down device 128 with two pressure elements 130 cooperating with the holding plates 98 of the protective cover 80.
  • the hold-down device also comprises a position sensing unit 132.
  • the gate unit 24 further comprises a sensor unit 134 for detecting a driving position of the door leaf 34 Components will be discussed again below.
  • the upper space 124 in the door housing 50 can be evacuated via lines 136 shown only schematically or acted upon by a gaseous medium. Corresponding lines 138 also lead to the lower space 126 in the door housing 50, wherein each of the main surfaces 36 and 38 of the door leaf 34 adjacent portion of the lower space 126 can be evacuated separately or flooded.
  • a differential pressure device 140 is provided, which can measure a pressure difference in the lower space 126 of the door housing 50 on the side of the main surface 36 of the door leaf 34 and the first furnace zone 18.
  • a corresponding differential pressure measuring device 142 is provided to detect a pressure difference between the lower space 126 in the door housing 50 on the side of the main surface 38 of the door leaf 34 and the second furnace zone 20.
  • the furnace zones 18 and 20 In order for the furnace zones 18 and 20 to be exposed to different gases, the furnace zones 18 and 20 must be separated from each other in a gastight manner.
  • the protective cover 80 is entrained in such a way that the lower portion 94 of the hollow profile 84 traversed by cooling water is always arranged at a height with and in front of the portion of the silicone seal 58 or 60, which runs parallel to the lower edge 46 of the door leaf 34.
  • the wing flaps 112, 114 of the bottom flap 110 are pivoted by means of the servomotor 118, so that the bottom receptacle 78 is released in the transition region 22 of the furnace tunnel 14.
  • the door leaf 34 and the protective cover 80 travel together in the above-described relative position in the furnace tunnel 14 until the lower portions 94 of the hollow sections 84 of the protective cover 80 come to lie on the bottom ribs 74 and 76 of the bottom receptacle 78, whereby the movement the protective cover 80 is stopped. However, the door leaf 34 is driven a little further down until the parallel to the lower edge 46 of the door leaf 34 extending portions of the silicone gaskets 58 and 60 are flanked by the bottom ribs 74 and 76 of the bottom receptacle 78.
  • the portions of the silicone gaskets 58 and 60 which are parallel to the side edges 40 and 42 of the door leaf 34, respectively between the guide ribs 68 and 70 of the guide structure 66.
  • the inwardly offset side portions 86 and 90 of the hollow profile 84 offer a shield against the heat radiation from the furnace tunnel 14, whereby the temperature of the silicone gaskets 58 and 60 in their vertical sections is always kept below the maximum maximum temperature for them.
  • the folded down ceiling flap 104 and the closed double-leaf door 106 shield the furnace zones 18 and 20 from the water-cooled door leaf 34 as well as the likewise water-cooled protective cover 80 so that objects to be burned which are arranged adjacent to the transition zone 22 in the furnace zones 18, 20 none or experience only a slight cooling.
  • This shielding is effective, in particular, for the reason that both the ceiling flap 104 and the doors of the double-leaf door 106 always turn to the same outer surface in the interior of the furnace tunnel 14, regardless of which position they occupy. In this way, cold or colder surfaces in the furnace tunnel 14 are largely avoided.
  • the silicone gaskets 58 and 60 are inflated so that they against the bottom ribs 74, 76, the guide ribs 78, 70 and the inner wall surfaces of the grooves 72nd in the door housing 50 and the respective inner surfaces of the passage 122 of the false ceiling 120 of the door housing 50 formed counter surfaces pressed.
  • the silicone gaskets 58 and 60 so also seal the passage 122 in the false ceiling 120 of the door housing 50, the upper space 124 and the lower space 126 are gas-tight separated from each other. Also, the portions of the lower space 126 of the door housing 50, which are respectively on the side of the main surface 36 and the main surface 38 of the door leaf 34, isolated from each other.
  • the differential pressure measuring devices 140, 142 are provided which compare the pressure prevailing in the door housing 50 with the pressure prevailing in the first furnace zone 18 and in the second furnace zone 20, respectively.
  • a pressure equalization can take place through the lines 136 and 138, so that no lower or higher pressure prevails in the corresponding area of the door housing 50 than in the furnace zones 18 and 20, respectively.
  • the cover 100 rests on the heat protection mats 96 of the protective cover 80 from the outside on the refractory material 28 in the region of the passage 48 in the furnace housing 12. As a result, a supplementary shielding of the door housing 50 with respect to the furnace tunnel 14 is formed.
  • the protective cover 80 is prevented from immediately moving upwards in the event of, for example, jamming with the door leaf 34.
  • the lower portions 94 of the hollow sections 84 above the parallel to the lower edge 46 of the door leaf 34 extending portions of the silicone gaskets 58 and 60 are arranged.
  • the silicon gaskets 58 and 60 would be directly exposed to the hot furnace atmosphere and the thermal radiation during start-up of the door leaf 34 and would be destroyed.
  • the correspondingly positioned sensor 134 is responsive to determining the entrainment position of the door leaf 34. Due to an output signal of the same, the hold-down device 128 is driven such that the pressure elements 130 their in FIG. 1 occupy the position shown and release the retaining plates 98 of the protective cover 80. In the course of the protective cover 80 is driven together with the door leaf 34 upwards, the lower portions 94 of the hollow profile 84, the silicone gaskets 58 and 60 always shield from the hot furnace atmosphere and thereby before the heat generated in the furnace tunnel 14 heat radiation.
  • the ceiling flap 104 is folded up again, so that the passage 102 in the refractory material 28 and thus the lower edge 46 and the cool lower portions 94 of the hollow sections 84 are shielded against heat radiation.
  • the door 106 between the transition region 22 and the furnace zone 24 is opened again.
  • bottom flap 110 shields the firing material moved therefrom from excessive cooling by the colder region below when the firing material is transferred from the first furnace zone 18 into the second furnace zone 20.
  • the silicone gaskets 58 and 60 of the door leaf 34 can be driven through the furnace tunnel 14, although the temperature therein is considerably higher than the maximum working temperature of the silicone gaskets 58 and 60 actually allows. In this way, the path between the furnace zones 18 and 20 can be released without the atmosphere in the furnace tunnel 14 having to be cooled beforehand.
  • the door leaf 34 can only on one of its major surfaces 36 or 38 with a Seal 58 or 60 provided and provided there corresponding to a partial shield 82.
  • the gate unit 24 may be used, for example, at the entrance or exit of the vacuum furnace 10.
  • a non-inflatable seal may also be provided in each case.
  • a pressing device can additionally be integrated into the door leaf 34, by means of which the seal in the closed position of the door leaf 34 is pressed against the corresponding mating surfaces of the guide structure 66 in order to achieve a sealing effect.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Tunnel Furnaces (AREA)
  • Furnace Details (AREA)
  • Surface Heating Bodies (AREA)
  • Electric Stoves And Ranges (AREA)
EP09714185A 2008-02-28 2009-01-30 Toreinheit sowie hochtemperaturofen mit einer solchen Not-in-force EP2245405B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09714185T PL2245405T3 (pl) 2008-02-28 2009-01-30 Zespół bramowy oraz piec wysokotemperaturowy z takim zespołem

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008011749A DE102008011749B4 (de) 2008-02-28 2008-02-28 Toreinheit sowie Hochtemperaturofen mit einer solchen
PCT/EP2009/000602 WO2009106199A1 (de) 2008-02-28 2009-01-30 Toreinheit sowie hochtemperaturofen mit einer solchen

Publications (2)

Publication Number Publication Date
EP2245405A1 EP2245405A1 (de) 2010-11-03
EP2245405B1 true EP2245405B1 (de) 2011-11-09

Family

ID=40527890

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09714185A Not-in-force EP2245405B1 (de) 2008-02-28 2009-01-30 Toreinheit sowie hochtemperaturofen mit einer solchen

Country Status (10)

Country Link
US (1) US9605903B2 (pt)
EP (1) EP2245405B1 (pt)
JP (1) JP5727232B2 (pt)
AT (1) ATE533021T1 (pt)
DE (1) DE102008011749B4 (pt)
DK (1) DK2245405T3 (pt)
ES (1) ES2375921T3 (pt)
PL (1) PL2245405T3 (pt)
PT (1) PT2245405E (pt)
WO (1) WO2009106199A1 (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130101163A1 (en) * 2011-09-30 2013-04-25 Rajarshi Gupta Method and/or apparatus for location context identifier disambiguation
CN205980793U (zh) * 2016-08-12 2017-02-22 深圳市捷佳伟创新能源装备股份有限公司 一种低压扩散炉炉门密封装置

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Publication number Priority date Publication date Assignee Title
US2804855A (en) * 1952-02-23 1957-09-03 Surface Combustion Corp Furnace door construction
US3155080A (en) * 1961-10-02 1964-11-03 Reliance Steel Prod Co Forced circulation water-cooled door
US3399875A (en) * 1966-04-21 1968-09-03 Alco Standard Corp Heat treating furnace
US3410547A (en) * 1966-09-22 1968-11-12 Alco Standard Corp Door assembly for heat treating furnaces
US3558112A (en) * 1969-07-07 1971-01-26 Alco Standard Corp Door unit for heat treating apparatus
DE3343299C2 (de) * 1983-11-30 1985-12-12 Hermann Rappold & Co GmbH, 5160 Düren Absperrschieber für Rohrleitungen großer Nennweiten, insbesondere Heißwindleitungen
JPH0322708Y2 (pt) * 1986-04-11 1991-05-17
JPH0618234Y2 (ja) * 1986-08-01 1994-05-11 石川島播磨重工業株式会社 焼結炉
DE3714014A1 (de) * 1987-04-27 1988-11-17 Werner Strohmenger Tunnelofen und verfahren zum betrieb eines tunnelofens
JP2749143B2 (ja) * 1989-09-14 1998-05-13 日本真空技術株式会社 真空熱処理炉の扉装置
JP3309416B2 (ja) * 1992-02-13 2002-07-29 松下電器産業株式会社 連結式クリーン空間装置
US5540109A (en) * 1992-11-05 1996-07-30 Qualmark Corporation Apparatus and method for thermal and vibrational stress screening
US5524020A (en) * 1994-08-23 1996-06-04 Grier-Jhawar-Mercer, Inc. Vacuum furnace with movable hot zone
JP2004330244A (ja) * 2003-05-07 2004-11-25 Daido Steel Co Ltd 真空溶解−真空鋳造設備のキャスティングバルブ
DE602004025983D1 (de) * 2004-03-18 2010-04-22 Ihi Corp Doppelkammerwärmebehandlungsofen
CA2655543C (en) * 2006-06-20 2014-12-02 Empco (Canada) Ltd. Slag door assembly for an electric arc furnace
SE0700628L (sv) * 2007-03-14 2008-01-08 Aga Ab Lucktätningsanordning för industriugn

Also Published As

Publication number Publication date
WO2009106199A1 (de) 2009-09-03
EP2245405A1 (de) 2010-11-03
PL2245405T3 (pl) 2012-03-30
ES2375921T3 (es) 2012-03-07
JP5727232B2 (ja) 2015-06-03
DE102008011749A1 (de) 2009-10-15
JP2011514960A (ja) 2011-05-12
ATE533021T1 (de) 2011-11-15
DE102008011749B4 (de) 2010-06-17
US20110008743A1 (en) 2011-01-13
US9605903B2 (en) 2017-03-28
PT2245405E (pt) 2012-01-09
DK2245405T3 (da) 2012-02-20

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