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EP0127075B1 - Installation de four avec un four et un convoyeur - Google Patents

Installation de four avec un four et un convoyeur Download PDF

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Publication number
EP0127075B1
EP0127075B1 EP84105600A EP84105600A EP0127075B1 EP 0127075 B1 EP0127075 B1 EP 0127075B1 EP 84105600 A EP84105600 A EP 84105600A EP 84105600 A EP84105600 A EP 84105600A EP 0127075 B1 EP0127075 B1 EP 0127075B1
Authority
EP
European Patent Office
Prior art keywords
furnace
track
rollers
goods
outlet
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.)
Expired
Application number
EP84105600A
Other languages
German (de)
English (en)
Other versions
EP0127075A3 (en
EP0127075A2 (fr
Inventor
Walter Dipl.-Ing. Schminke
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.)
VGT AG
Original Assignee
VGT AG
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 VGT AG filed Critical VGT AG
Priority to AT84105600T priority Critical patent/ATE35455T1/de
Publication of EP0127075A2 publication Critical patent/EP0127075A2/fr
Publication of EP0127075A3 publication Critical patent/EP0127075A3/de
Application granted granted Critical
Publication of EP0127075B1 publication Critical patent/EP0127075B1/fr
Expired legal-status Critical Current

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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
    • F27B9/02—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
    • F27B9/021—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 having two or more parallel tracks
    • F27B9/022—With two tracks moving in opposite directions
    • F27B9/023—With two tracks moving in opposite directions with a U turn at one end
    • 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
    • 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 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 being carried by a conveyor the conveyor being constituted by rollers (roller hearth furnace)

Definitions

  • the invention relates to a furnace system with a heatable furnace, in particular enamelling furnace, and a conveyor, in particular an endlessly designed conveyor device, on which goods carriers, automatically or by hand, are passed through the furnace, the individual roles of the side walls of the Penetrate the furnace and are connected to a drive outside the furnace and are provided with a bearing.
  • Such furnace systems are known in particular in enamel technology. They are used to burn in the enamel coating in the heated and therefore hot oven.
  • the hottest zone of an enamelling furnace can have a temperature of, for example, 850 ° C.
  • the present invention can also be used for other fields of application of technology with low or even higher temperatures in the hottest zone of the furnace.
  • a furnace system of the type described at the outset is known and is referred to, for example, as a continuous roller hearth furnace.
  • a conveyor which can be provided to run endlessly, leads through the furnace.
  • the oven has an oven inlet and a separate oven outlet.
  • the furnace inlet and furnace outlet are usually provided or arranged on the two ends of the furnace.
  • the conveyor is designed as a roller conveyor, i.e. there are rolls stored stationary and each provided with a drive, so that a goods carrier with goods on it is automatically transported on this roller conveyor due to the drive of the rollers.
  • goods carriers may be missing if the goods themselves are suitable for running on the rollers of the conveying device.
  • Reverse furnace systems are also known in enamelling technology, with a furnace and an endless conveyor.
  • the conveyor device In contrast to a roller conveyor, however, the conveyor device also has moving parts which are guided through the furnace and consequently have to be additionally heated.
  • the conveying device can be designed as a hanging conveying device, ie suspended racks are provided which hang from a conveying means, for example a guided chain. The individual pieces of goods must then be hung or placed on the racks.
  • Another type of conveyor is known as a so-called underfloor conveyor.
  • a slot extends under the conveyor track in the furnace, through which supports protrude from below into the furnace chamber or combustion chamber. Rust-like goods carriers are attached to the supports, onto which the goods are placed.
  • such a reversing furnace has only a single furnace opening which serves as an inlet and an outlet and which are thus arranged directly next to one another.
  • the conveying device is reversed by passing the conveying means over a circular disk or the like and thus reversing the conveying direction.
  • the advantage of these reversing ovens is the better use of fuel.
  • a forced cooling system is dispensed with because the still cold items are guided past one another directly next to the hot items in the infeed path or the outfeed path and thus this area of the furnace serves as a heat exchanger.
  • Such a reversing furnace also enables an advantageously compact design and can therefore also be set up in confined spaces.
  • the invention has for its object to provide a reversal option for the goods in a furnace system of the type described above, that is to say with a conveyor designed as a roller conveyor, which permits automatic, mechanical loading or manual loading, so that the advantages of the reversing furnace, esp. whose good heat utilization becomes applicable.
  • a conveyor designed as a roller conveyor, which permits automatic, mechanical loading or manual loading, so that the advantages of the reversing furnace, esp. whose good heat utilization becomes applicable.
  • it is about, in the hot zone of the furnace, in which no or if possible no storage and drive parts of the conveyor can be accommodated and only the rollers of the roller conveyor penetrate the side of the furnace wall and extend across the interior of the furnace, create the possibility of reversing the conveying direction so that the furnace inlet and outlet can be arranged directly next to each other.
  • the rollers of the roller conveyor at least in the hot zone of the oven, have at least such a length within the clear oven width that goods carriers with opposite conveying directions can be guided towards one another by one side by side in the hot zone of the oven due to the roller conveyor
  • Infeed path and an outfeed path are provided that in the area of the infeed path or the outfeed path there are multiple roller rollers resting on two adjacent rollers, the length of which corresponds approximately to the width of a product carrier, and that in the area of the closed head end of the furnace between the end of the infeed path and at the beginning of the run-out path, a transfer device is provided for the goods carriers filled with the goods.
  • the conveyor device can be designed to be equally suitable for both manual and automatic trimming. It is also not necessary to carry out endless funding.
  • the goods carriers can easily be stacked, i.e. removed from the circuit, filled with new pieces of goods outside the conveyor and, as soon as possible, introduced into the furnace run.
  • the oven can thus be operated very variably.
  • energy only has to be expended if goods are also transported on the conveyor, that is, the furnace fulfills its function. With different types of goods, it is easily possible to adjust or change the conveying speed.
  • the arrangement of the rolling rollers on the half clear furnace side on the rollers makes it possible to easily use the drive of the rollers in one conveying direction for transporting the goods carriers and to use the same drive in the opposite direction, but with the help of the rolling rollers the opposite conveying direction to effect.
  • a transfer device only has to be provided at the head end of the furnace in order to place the goods carriers or the goods pieces from the end of the infeed path to the start of the outfeed path.
  • the transfer device can carry out a stroke.
  • the roller conveyor and the roller conveyor can, however, also be arranged in relation to one another in such a way that simply moving the product carriers transversely with respect to the inlet and outlet conveyor means that they are seated.
  • a section can also be provided in which the goods carriers are spaced apart so that there is sufficient time for the transfer device to remove one goods carrier after the other from the end of the infeed path and to place it on the beginning of the outfeed path.
  • the rolling rollers are expediently guided in the axial direction against axial running away on the rollers.
  • This can be done in that the roller rollers have a circumferential entry outside the area covered by the product carriers, into which the guide plate arranged in the oven engages.
  • This guide plate can be U-shaped, so that it can engage in the groove.
  • the guide plate in the area of each roller roller is expediently fastened to the inside of the side wall of the furnace. But it is also possible that the rollers and / or the roller rollers have diametrically offset areas which engage in one another, so that in this way a safeguard against axial running away is formed.
  • the transfer device has a support protruding through an opening in the bottom of the furnace, which supports the goods carriers between the rollers or roller rollers of the inlet and outlet tracks; the drive for the lift and the lateral offset of the support is provided under the bottom of the furnace, so it is located outside the hot zone under the bottom of the furnace.
  • the inlet path and the outlet path can be extended beyond the hot zone of the furnace to a part of the furnace which acts as a heat exchanger.
  • this roller conveyor forming the inlet path and the outlet path beyond the furnace exit and thus also outside the furnace.
  • rollers and / or the roller rollers can have different diameters in the individual web sections and / or can be provided with drives at different speeds.
  • roller rollers on the infeed path and to drive the rollers in accordance with the conveying direction of the outfeed path.
  • This has the advantage that the run-out path can be arranged somewhat lower than the run-in path, that the transfer device only has to carry out a downward movement which is substantially under load.
  • a relatively small support distance is achieved in this way between the rollers, specifically in the area of the run-out path, in particular at the hottest point of the oven, where the product carriers are also subjected to the greatest thermal and mechanical stress.
  • guiding the roller rollers against axial runaway will produce some friction on the roller rollers so that the roller rollers rotate at a slightly lower peripheral speed than the rollers. Due to the arrangement of the roller rollers on the inlet side, the outlet is slightly faster than the inlet, so that there are only slightly larger distances between the goods carriers on the outlet side and these differences cannot add up.
  • stationary guide rails can be provided in the oven for the goods carriers in the area of the inlet and outlet tracks so that the goods carriers do not run laterally out of the inlet or outlet tracks. This prevents impacts on the furnace wall or on the roller rollers and ensures the proper passage or entry and exit of the goods carriers.
  • a conveyor device 1 has a plurality of rollers 2 arranged and stored next to one another. On the rollers 2 goods carrier 3 are placed, which can have a plate or rust-like shape. The pieces of goods 4 to be treated (FIG. 5) are placed onto these goods carriers 3 either by hand or by machine.
  • An inlet path 5 and an outlet path 6 are formed directly next to one another on the rollers. The goods carriers 3 in the area of the inlet path 5 are moved according to arrow 7 and the goods carriers 3 in the area of the outlet path 6 according to arrow 8, so that the inlet path 5 and outlet path 6 have mutually opposite conveying directions. How this happens despite continuous roles 2 will be explained later.
  • the goods carriers 3 can be stocked in the area of the conveyor device 1 outside the furnace either on the conveyor device 1 or separately therefrom, both automatic machine stocking and hand stocking is possible.
  • the goods carriers 3 are here at a distance from one another, ie a web section 9 is formed with increased conveying speed, so that the goods carriers 3 are conveyed at a distance from one another.
  • This path section 9 is shown as brief in FIGS. 1 and 2 only for reasons of illustration technology. In fact, it can extend over a longer distance.
  • the conveyor 1 leads into or out of a furnace 10.
  • a furnace inlet 11 and a furnace outlet 12 are arranged directly next to one another, so that the furnace 10 has only a single open location.
  • the other end 13 of the furnace 10 is closed and has only one opening option for repair purposes.
  • a further web section 14 is formed, in which the rollers 2, which pass through the side walls 15 and 16 of the furnace, are driven at a somewhat lower speed or speed, so that the goods carriers 3 reduce their mutual distance or one behind the other in the region of the inlet path 5 and the outlet path 6 in the furnace 10 according to the arrows 7 and 8.
  • a certain minimum distance between the product carriers, which results from the friction of the guide of the roller rollers, must not be undercut, so that the speed reduction occurring on each product carrier cannot add up on the output side and thus clogging of the furnace system is avoided.
  • This path section 14 of the furnace 10 represents a heat exchanger, as it were, because the still hot articles 4 which run out according to arrow 8 and the article carriers 3 heat up the cold article carriers 3 and articles 4 in the region of the inlet path 5.
  • the web section 14 acting as a heat exchanger is also considerably longer than shown in FIGS. 1 and 2. At its end (FIGS. 3 and 4), it passes into the hot zone 17 of the furnace 10, that is to say into the area in which the actual release of the heat usually acts using radiators 18, which can be designed as radiant tubes. It is also indicated here that the rollers 2 are provided continuously over the clear furnace width.
  • the rollers 2 are inserted through openings in the side walls 15 and 16 of the furnace 10. Outside of the furnace 10, the bearings of the rollers and the drive are provided so that these parts are hardly thermally stressed.
  • the hot zone 17 or part of it represents a further web section 19, in which, as can be seen, the goods carriers 3 are again conveyed faster, that is to say brought into spacing, according to the arrows 7 and 8. In any case, this distance is required with the area of the end face 13 of the furnace 10 so that a transfer device 20 (FIG. 2) arranged there grips from the end of the infeed path 5 into goods carriers 3 arriving at the end with the goods pieces 4 sitting thereon and is placed on the beginning of the outflow path 6 can.
  • a transfer device 20 FIG. 2 arranged there grips from the end of the infeed path 5 into goods carriers 3 arriving at the end with the goods pieces 4 sitting thereon and is placed on the beginning of the outflow path 6 can.
  • Rollers 21 are placed on the rollers in the area of the entire run-out path 6, as can best be seen from part of the path section 19. While the rollers 2 in the area of the entire conveyor device 1 are more than twice as long as the clear oven width would require, so that two goods carriers 3 can be guided next to one another in different conveying directions, the roller rollers extend only comparatively over half the length . In the present exemplary embodiment, the roller rolls 21 are provided in the region of the run-out track 6. Each roller roller 21 is placed on two adjacent rollers 2 and in turn forms a support and conveying point for each goods carrier 3. It can be seen from Fig.
  • rollers 2 in the area of the infeed path 5 support the goods carriers 3 at a shorter distance than the roller rollers 21 Goods carrier 3 in the area of the run-out track 6.
  • roller rollers 21 in the area of the run-in track 5 instead of in the area of the run-out track.
  • the length of the individual rollers 2 also depends on the wall thickness of the side walls 15 and 16 in the individual areas of the furnace. It goes without saying that the rollers 2 must extend outwards from the side walls 15 and 16, because bearings and drive units (not shown here) are provided for the rotary movement of the rollers 2.
  • the transfer device shown in more detail in FIG. 2 has at least one support 24 projecting through an opening 22 in the bottom 23 of the furnace 10 into the interior of the furnace.
  • the support 24 engages between the rollers 2 or roller rollers 21 on the underside of the goods carrier 3.
  • the transfer device 20 has a drive 25 arranged outside the furnace for a lifting movement and one lateral offset on. If the conveyor device 1 is to be designed as an endless conveyor, it is advisable to provide and arrange a transfer device 26 which is designed very similarly to the transfer device 20 in the region of the other end of the conveyor device 1.
  • FIG. 7 and 8 also shows the mode of operation of the transfer device 20, specifically the transport route, which is indicated schematically by the arrows 27.
  • a guide plate 28 is indicated, which is arranged in a fixed manner in the region of each roller roller 21 and engages in a circumferential entry 29 on each roller roller 21, so that the roller roller 21 cannot move axially, that is to say always in the region of the run-out path 6 remains led.
  • Guide rails 30 in the area of the infeed path 5 and the outfeed path 6 ensure that the goods carriers 3 and possibly the roller rollers 21 remain within the infeed path 5 and the outfeed path 6 and that the paths cannot change laterally.
  • roller rollers 21 can be guided on the rollers 22 against axial running away. This is also possible, for example, in that a circumferential recess is provided in the area of the rollers 2, into which a circumferential, outwardly projecting rib on the roller roller 21 engages. It goes without saying that this rib must be provided outside the area which is swept by the product carriers 3 or comes into contact with it. Different dimensions and / or different speeds in the area of the individual rollers 2 or groups of rollers 2 can achieve very different effects. In FIG. 9, the transition area between two track sections is shown by a schematic line of identification 31.
  • the goods carriers 3 are conveyed adjacent to one another on the rollers 2, for example in accordance with arrow 7, for example in the area of an inlet path 5.
  • the associated outlet path 6 is represented by the roller rollers 21 and the direction of movement in accordance with arrow 8. It can be seen how the goods carriers 3 also end here one behind the other. Rollers 2 with a comparatively larger diameter are provided in the adjacent web section 33, so that the goods carriers 3 are automatically transported according to arrow 7 and are brought at a distance from one another. The distances 34 are only indicated schematically. In the area of the associated run-out path 6, the rollers 2 now have a reduced diameter which corresponds to the diameter of the rollers 2 in the path section 32.
  • rollers 21 with such a large diameter are placed on this reduced diameter that the plane on which the product carriers 3 move in the region of the outlet track 6 are flush with one another or lie in the same plane. It can be seen how, in the area of the web section 33 in the area of the run-out track 6, the goods carriers 3 are returned one behind the other at the same speed as in the web section 32. The prerequisite for this is that the rollers 2 in both track sections 32 and 33 are driven at a constant constant speed. By varying the speed, there are other design options.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Tunnel Furnaces (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Baking, Grill, Roasting (AREA)
  • Constitution Of High-Frequency Heating (AREA)
  • Drying Of Solid Materials (AREA)

Claims (10)

1. Installation de four comportant un four susceptible d'être chauffé, en particulier un four d'émaillage et un dispositif de transport conformé en convoyeur à rouleaux, en particulier sans fin, sur lequel des supports de marchandises chargés automatiquement ou manuellement traversent le four, les rouleaux individuels dépassant les parois latérales du four et étant reliés à l'extérieur du four à un dispositif d'entraînement et étant munis de paliers, caractérisée par le fait que les rouleaux (2) du convoyeur à rouleaux présentent, dans la partie chaude (17) du four (10) au moins une longueur telle à l'intérieur de la largeur libre du four que des supports de marchandises (3) peuvent passer les uns à côté des autres en sens inverse de transport (7, 8), que dans la zone chaude du four (10) sont prévus un chemin d'entrée (5) et un chemin de sortie (6) disposés l'un à côté de l'autre dans le convoyeur à rouleaux, que dans la zone du chemin d'entrée (5) ou dans la zone du chemin de sortie (6), il est prévu une multiplicité de rouleaux de roulement (21) reposant chacun sur deux rouleaux (2) voisins dont la longueur correspond à peu près à la largeur d'un support (3) de marchandises et que, dans la zone de l'extrémité de tête du four (10) conformée de façon fermée, il est prévu un dispositif de transfert (20) entre l'extrémité du chemin d'entrée (5) et le début du chemin de sortie (6) pour les supports (3) de marchandises occupés par des pièces de marchandises (4).
2. Installation de four selon la revendication 1, caractérisée par le fait que les rouleaux de roulement (21) sont guidés en direction axiale sur les rouleaux (2) pour éviter qu'ils ne s'écartent axialement.
3. Installation de four selon la revendication 2, caractérisée par le fait que les rouleaux de roulement (21) présentent, à l'extérieur de la zone recouverte par les supports (3) de marchandise, une rainure (29) dans laquelle s'engage une tôle de guidage (28) montée de façon fixe dans le four.
4. Installation de four selon la revendication 2, caractérisée par le fait que les rouleaux (2) et/ou les rouleaux de roulement (21) présentent des zones de diamètre réduit.
5. Installation de four selon la revendication 1, caractérisée par le fait que le dispositif de transfert (20) présente un support (24) dépassant dans un passage (22) ménagée dans le fond (23) du four (10), lequel support s'engage entre les rouleaux (2), respectivement les rouleaux de roulement (21), des chemins (5, 6) d'entrée et de sortie, sur les supports (3) de marchandises, et que le dispositif d'entraînement (25) est prévu pour la course verticale et le déplacement latéral du support (24) sous le fond (23) du four (10).
6. Installation de four selon la revendication 1, caractérisée par le fait que le chemin d'entrée (5) et le chemin de sortie (6) sont prolongés au delà de la zone chaude (17) du four (10) jusque dans une partie du four jouant le rôle d'échangeur de chaleur.
7. Installation de four selon les revendications 1 à 6, caractérisée par le fait que dans la zone du chemin d'entrée et/ou du chemin de sortie (5, 6) des sections (14, 19) de chemin à vitesses différentes sont formées pour les supports (3) de marchandises.
8. Installations de four selon les revendications 4 et 7, caractérisée par le fait que les rouleaux (2) et/ou les rouleaux de roulement (21) présentent, dans les différentes sections (9, 14, 19) de chemin, des diamètres différents et/ou les entraînements ont des vitesses de rotation différentes.
9. Installations de four selon une des revendications 1 à 8, caractérisées par le fait que les rouleaux de roulement (21) sont prévus sur le chemin d'entrée (5) et que l'entraînement des rouleaux (2) se fait selon le sens de transport (8) du chemin de sortie (6).
10. Installations selon une des revendications 1 à 9, caractérisées par le fait qu'au dessus des rouleaux (2), respectivement des rouleaux de roulement (21), sont prévus dans le four des rails (30) de guidage fixes pour les supports de marchandises dans la zone du chemin d'entrée et du chemin de sortie (5, 6).
EP84105600A 1983-05-28 1984-05-17 Installation de four avec un four et un convoyeur Expired EP0127075B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84105600T ATE35455T1 (de) 1983-05-28 1984-05-17 Ofenanlage mit einem ofen und einer foerdereinrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3319396 1983-05-28
DE3319396A DE3319396C2 (de) 1983-05-28 1983-05-28 Ofenanlage mit einem Ofen und einer Fördereinrichtung

Publications (3)

Publication Number Publication Date
EP0127075A2 EP0127075A2 (fr) 1984-12-05
EP0127075A3 EP0127075A3 (en) 1986-08-27
EP0127075B1 true EP0127075B1 (fr) 1988-06-29

Family

ID=6200110

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84105600A Expired EP0127075B1 (fr) 1983-05-28 1984-05-17 Installation de four avec un four et un convoyeur

Country Status (3)

Country Link
EP (1) EP0127075B1 (fr)
AT (1) ATE35455T1 (fr)
DE (1) DE3319396C2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1183389B (it) * 1985-02-21 1987-10-22 Marazzi Ceramica Procedimento e immpianto per la produzione di piastrelle ceramiche smaltate, e piastrelle cosi'ottenute
GB2210681A (en) * 1987-10-08 1989-06-14 Consultant Gas Eng Ltd Continuous kiln
IT1260684B (it) * 1993-09-29 1996-04-22 Weber Srl Metodo ed impianto per la pressocolata in semiliquido di componenti ad alte prestazioni meccaniche a partire da masselli reocolati.
AT401817B (de) * 1993-12-01 1996-12-27 Rieger Walter Verfahren zum brennen von keramischen formlingen und anlage zur durchführung des verfahrens
DE20017694U1 (de) * 2000-10-17 2001-03-08 Skf Gmbh, 97421 Schweinfurt Förderstrecke für wärmezubehandelnde Werkstücke
DE102009019573A1 (de) * 2009-05-02 2010-11-11 Messarius, Uwe Ofen und Verfahren zum Erwärmen wenigstens eines Werkstückes
AT508555B1 (de) * 2010-02-04 2011-02-15 Ebner Ind Ofenbau Vorrichtung zur wärmebehandlung von blechzuschnitten
EP3144620A1 (fr) * 2015-09-18 2017-03-22 Schwartz GmbH Installation de traitement thermique

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2023126A (en) * 1934-06-09 1935-12-03 Frank A Fahrenwald Subdivided roller bottom for sheet normalizing furnaces
DE750356C (de) * 1942-11-21 1945-01-06 Foerdereinrichtung fuer Industrieoefen mit Kugel- oder Walzenherd
US3328861A (en) * 1965-06-24 1967-07-04 Pullman Inc Roller hearth tunnel kilns
FR2550852A1 (fr) * 1983-08-16 1985-02-22 Montoya Maria Four continu a sole mobile ou plancher mobile

Also Published As

Publication number Publication date
DE3319396A1 (de) 1984-11-29
EP0127075A3 (en) 1986-08-27
DE3319396C2 (de) 1985-04-04
EP0127075A2 (fr) 1984-12-05
ATE35455T1 (de) 1988-07-15

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