• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to an oven (10), in particular an interior oven or a decorative oven, for drying painted or decorated containers, such as metal cans, in particular aerosol cans, a heating zone (12), a transport chain (26) for the transport of containers through the heating zone ( 12) and an exhaust port (30) having an exhaust system. The heating zone (12) is enclosed by walls (16) and has a heating zone inlet opening (20) and a heating zone outlet opening (22) sized to allow containers to be dried through them into the heating zone (12) and out of the heating zone (12) can emerge. The transport chain (26) is guided along a transport path which leads through the heating zone inlet opening (20) into the heating zone (12), through the heating zone (12) to and through the heating zone outlet opening (22). The exhaust air opening (30) and the exhaust system are arranged so that they can discharge exhaust air from the heating zone (12). At the container inlet opening a rotary valve (40) is provided. The rotary valve (40) has the effect that fresh air can no longer flow unhindered through the Heizzoneneintrittsöffnung (20) in the heating zone (12).
    公开号:CH713741A2
    申请号:CH00423/18
    申请日:2018-03-29
    公开日:2018-10-31
    发明作者:Jörg Häske Dr；Luz Uwe；Nagel Laura
    申请人:Mall Herlan Mb Gmbh；
    IPC主号:
    专利说明:

    Description: The invention relates to a furnace for the heat treatment of containers such as bottles, tubes or cans, in particular aerosol cans according to the preamble of patent claim 1.
    Containers such as cans, such as aerosol cans, have a can body, which is painted or decorated inside the production inside and / or outside. After painting or decorating, a heat treatment typically takes place in an oven. During the production process, the containers are transported by means of a transport chain or a conveyor belt, which has or the corresponding container holders. For the transport of externally painted, for example, decorated cans, the transport chain typically has transport pins on which the unilaterally open can body are placed so that the transport pins protrude into the interior of the can body and hold the can body in this way. The transport pins are typically slightly inclined relative to the horizontal, so that a respective transport pin rises slightly from its attached to the transport chain foot end up to its free end. For the transport of interior-lacquered cans, the transport chain or the conveyor belt is provided with cups, each receiving one or more cans.
    By means of such a transport chain outside painted, for example, decorated can body are transported through the oven to cure the paint by the heat treatment in the oven. The transport chain is guided within the furnace typically along an alternately up and down transport path.
    The oven typically has a heating zone into which the containers may enter through a heating zone inlet and from which the containers may exit through a heating zone outlet. The transport chain leads the containers through the heating zone inlet opening into the heating zone of the oven and finally out through the heating zone outlet opening out of the heating zone of the oven. The heating zone of the furnace is enclosed by walls. In one of the walls is the heating zone inlet opening, which is dimensioned such that the outer surfaces of the containers do not touch the corresponding wall in which the heating zone inlet opening is located. The same applies to the dimensioning of the Heizzonenaustrittsöffnung in the opposite wall of the heating zone. For ovens for interior lacquered cans the Heizzoneneintritts- and Heizzonenaustrittsöffnungen are typically sized even larger than ovens for exterior painted cans, because the Heizzoneneintritts- and Heizzonenaustrittsöffnungen for internally painted cans must also provide enough space for conveyor belt or chain together with attached baskets.
    Typically, an exhaust port is disposed in a wall of the furnace and the heating zone, via the exhaust air can be removed from the heating zone using an exhaust fan. The exhaust air may contain solvents and - in the case of a gas-heated heating zone - also exhaust gases. Fresh air enters the heating zone either through a dedicated fresh air opening or through the heating zone inlet opening and / or the heating zone outlet opening.
    The invention has for its object to improve such a furnace.
    According to the invention this object is achieved by a furnace according to the features of claim 1.
    According to the invention a product lock, preferably a rotary valve is provided at the container inlet opening. The product lock has the effect that fresh air can no longer flow unhindered through the heating zone inlet opening into the heating zone. In this way, an undesirable supply of fresh air can be avoided and it is possible to heat incoming fresh air. In addition, the containers entering the heating zone through the heating zone inlet opening are exposed to a higher temperature from the outset, so that the transport path through the heating zone can also be optimized.
    Such a furnace allows a method in which the containers are fed via a product lock, preferably a rotary valve, a heating zone of the furnace and / or discharged from the heating zone.
    With the new product lock, the product - with or without simultaneous implementation of the pin chain - almost no false air entry into the oven or be transported out. This targeted heat recovery measures are possible, such as preheating the supply air with the furnace exhaust air via regenerators or heat exchangers. A particularly cost-effective way with cooling of the product is thereby made more efficient.
    When inner laquer the can comes freely from a basket (no pin chain) and can be relatively easily passed through a suitable construction of the rotary valve. An open "throat" with high heat losses can be omitted. Instead, heat can be recovered and preheated fresh air can be specifically fed.
    When decorating oven, the transport chain, for example, a pin chain that can run outside the cells of the cell wheel, while only the chain pins protrude into the cells. The transport chain drives the rotary valve. Thus, the drive of the rotary valve is always synchronous to the transport chain and there is no additional drive necessary. Again, heat recovery and fresh air preheating is possible at a targeted location.
    Preferably, the transport path also leads through the heating zone inlet opening into the heating zone, through the heating zone to and through the heating zone outlet opening, i. the containers are guided by the transport chain not only through the heating zone but also through the heating zone inlet opening and the heating zone outlet opening. The latter is particularly advantageous in ovens for externally painted cans. Alternatively, it may be provided in particular for ovens for interior painted cans that transport chain or belt and rotary valve are designed so that a container transfer from the transport chain with pins or cups or the conveyor belt for feeder or vice versa.
    Preferably, the rotary valve is driven by the transport chain and thus does not need its own drive, which would then have to be synchronized with the transport chain.
    Particularly preferably, the furnace next to the heating zone also has an integrated cooling zone, which adjoins directly to the heating zone and how it is enclosed by the walls of the furnace, which also surround the heating zone. The cooling zone is separated from the heating zone by a partition in which the Heizzonenaustrittsöffnung is arranged, so that the Heizzonenaustrittsöffnung serves as a cooling zone inlet opening for the cooling zone. The transport chain is guided to transport the containers along a transport path through the heating zone, preferably through the heating zone inlet opening into the heating zone, through the heating zone to the heating zone exit opening and through the latter into the cooling zone and through the latter to a cooling zone exit opening. In this variant, fresh air flowing into the cooling zone through the cooling zone exit opening can be effectively utilized in a countercurrent process for cooling the containers transported through the cooling zones, the air being heated in the cooling zone and in a preheated state through the heating zone exit opening the heating zone can enter. Such a combination of heating zone and cooling zone in an oven in conjunction with a rotary valve at the heating zone inlet opening causes a further increased energy efficiency of the furnace.
    A cooling zone integrated in the furnace represents a concept of the invention which is also to be realized independently of a product lock in the region of the heating zone inlet opening, because the advantages of preheating the incoming air flowing into the heating zone through the heating zone outlet opening in the cooling zone result - albeit to a lesser extent - Even if no product lock is provided at the heating zone inlet opening.
    It is also possible to provide a rotary valve at the heating zone outlet opening or, if present, at the cooling zone outlet opening and, for example, to provide a dedicated air inlet opening for the fresh air supply. In such an embodiment variant, the fresh air to be supplied via the supply air opening can be guided via a crossflow heat exchanger, via which the warm exhaust air is passed on the other side, so that the heat can be transferred from the exhaust air to the supply air and the fresh air to be supplied is thus preheated , This helps to minimize energy losses.
    Instead of a cross-flow heat exchanger, a regenerator may be provided. The regenerator may, for example, preferably have two ceramic packed beds, which are alternately flowed through by warm exhaust air and cool fresh air. If the respective ceramic packed bed flows through warm exhaust air, the ceramic packed bed heats up until it approximately assumes the temperature of the warm exhaust air. Cooled fresh air then flows through the ceramic packed bed of the regenerator, with the fresh air in the ceramic packed bedding being heated until the temperature of the ceramic packed bed has again reached approximately the temperature of the incoming fresh air. At the latest then the air streams are switched so that the now cooled ceramic packed bed again flows through warm exhaust air and is heated by this again. If the regenerator has two ceramic packed beds, the Zuluft- and the exhaust air flow can always be alternately passed through the two ceramic Füllkörperschüttungen, so that one of the Füllkörperschüttungen is always heated by the exhaust air, while the other packings emits their heat to the supply air.
    The drive in the rotary valve or the rotary feeders by the transport chain and the arrangement of the cell walls of the rotary valve are preferably designed especially for externally painted cans that held by the transport chain container without touching the cell walls can be passed through the rotary valve.
    It is particularly preferred if a guide wheel for the transport chain in the field of rotary feeder is arranged, so that the transport chain, the container through the rotary valve not along a straight path, but along a curved path, wherein the center of the curvature of the transport path is located on or near an axis of rotation of the rotary valve.
    It is particularly preferred if the deflection wheel for the transport chain has an axis of rotation which is slightly offset relative to the axis of rotation of the rotary valve and rotary valve and guide wheel are mechanically synchronized via a gear, so that the rotary feeder are driven by the rotation of the guide wheel can.
    In particular, it is advantageous if the rotary valve has a cellular wheel with an axis of rotation which is parallel to an axis of rotation of the guide wheel for the transport chain and this is offset in the spatial direction towards the bottom, i. the axis of rotation of the deflecting wheel extends above the axis of rotation of the cellular wheel. The dimension by which the axes of rotation are offset from each other can be slightly smaller than a diameter of the largest containers to be transported, for example approximately as large as or slightly smaller than half the diameter of the largest containers to be transported.
    Preferably, the transport path of the container through the rotary valve in the region of the entry of the rotary valve in the vertical direction upwards and in the area of the outlet of the rotary valve is approximately horizontal, so that the containers are passed over an arc of about 90 degrees through the rotary valve ,
    The cell walls of the rotary valve can be flat. In alternative embodiments, the cell walls of the rotary valve are curved in the radial direction. The latter helps especially in ovens for exterior painted cans to avoid contact of the cellular wheel walls through the container.
    The invention will now be explained in more detail by means of embodiments with reference to the figures. From the figures shows
    1 shows a schematic sketch of a furnace according to the invention;
    2 shows details of a first variant of a rotary valve according to the invention in a perspective view;
    3 shows a partially sectioned illustration of the rotary feeder from FIG. 2;
    Fig. 4: a further perspective view with details of the drive of the rotary valve from the
    Figs. 2 and 3;
    5 is a schematic diagram illustrating the course of the transport path of the transport chain through the rotary feeder in a variant similar to the embodiment shown in FIGS. 2 to 4;
    Fig. 6 is a schematic diagram illustrating an alternative course of the transport path of the transport chain through the rotary valve and a suitable design of the cell wheel of the rotary valve;
    FIG. 7 shows a second, alternative variant of a rotary feeder for a transport chain with transport pins; FIG.
    Fig. 8: a Zellenradschluse similar to that of FIG. 7 with plate pins instead of dargestell th in the other figures th transport pins.
    9 shows a third, alternative variant of a rotary feeder for a transport chain with transport pins;
    Fig. 10: a variant of a rotary valve for use in conjunction with a transport chain with Trans port baskets for transporting internally painted containers
    11 shows a variant of a furnace with a rotary feeder both at the inlet and at the outlet and with a dedicated inlet air opening and a heat exchanger; and
    Fig. 12: a variant of a furnace similar to that of Fig. 10 with a regenerator instead of the heat exchanger.
    Fig. 1 shows a schematic representation of a furnace 10 with a heating zone 12 and a cooling zone 14. heating zone 12 and cooling zone 14 are enclosed by walls 16 and separated by a partition 18 from each other.
    The heating zone has a Heizzoneneintrittsöffnung 20 and a Heizzonenaustrittsöffnung 22, which is also an inlet opening for the cooling zone 14. The cooling zone 14 also has a cooling zone exit opening 24.
    In Fig. 1, a transport chain 26 is indicated, which causes the transport of containers along a transport path which leads from the outside through the heating zone inlet opening 20 into the heating zone 12, through the heating zone 12 to Heizzonenaustrittsöffnung 22 through the Heizzonenaustrittsöffnung 22 through the cooling zone 14, through this to the cooling zone exit opening 24 and through it out of the oven 10 out.
    Can be seen, the transport chain 26 is guided both in the heating zone 12 and in the cooling zone 14 so that it leads the container within the two zones along an alternately up and down transport path. Accordingly, a plurality of pulleys 28 are arranged for the transport chain 26 in both the heating zone 12 and in the cooling zone 14. In the area of the heating zone 12, the furnace 10 has an exhaust air opening 30 which communicates with an exhaust air system, not shown, in order to lead out exhaust air from the heating zone 12 via the exhaust air opening 30.
    The discharged exhaust air is at least partially replaced by fresh air, which first enters through the cooling zone outlet opening 24 in the cooling zone 14, flows through them and finally penetrates through the Heizzonenaustrittsöffnung 22 in the heating zone 12. While the fresh air flows through the cooling zone 14, it is preheated, so that the supply air finally entering the heating zone 12 is already preheated and less energy has to be expended for heating the air in the heating zone 12.
    As can also be seen in FIG. 1, air guide walls 32 are provided in the cooling zone 14, which ensure that the incoming air entering the cooling zone 14 can not flow transversely through the cooling zone 14 but is guided along the transport path of the transport chain 26 , The container transported by the transport chain 26 and the inflowing supply air thus move in the opposite direction so that there is a kind of countercurrent cooling of the container.
    Due to the heating zone inlet opening 20, no or only very little fresh air can enter from outside as supply air into the heating zone 12, because a rotary valve 40 is provided at the heating zone inlet opening 20. The rotary valve 40 is driven by the transport chain 26 and thus allows 26 containers to introduce into the heating zone 12 by means of the transport chain, without fresh air can flow through the Heizzoneneintrittsöffnung 20 as supply air into the heating zone 12. Air duct walls 32 can also be provided in the heating zone 12, but these are largely obsolete by the rotary valve 40.
    FIGS. 2 to 4 show details of a preferred embodiment of the rotary valve 40.
    It can be seen on the one hand that the transport chain 26 is provided with transport pins 42, on each of which a container - more precisely a container body - 44 is placed. In this case, a respective transport pin 42 protrudes through the open end of the respective, one-sided open container body 44 into it, so that the container body 44 as supported on the transport pins 42 are supported by these. The rotary valve 40 is enclosed by rotary valve walls 46 and 48, which release a rotary valve inlet opening 50 and a rotary valve outlet opening 52. The rotary valve walls 46 and 48 surround a cellular wheel 54, which defines with its cellular wheel walls 56 a plurality of chambers or cells 58. The cellular wheel 54 has a rotation axis that is perpendicular to a plane defined by the transport path that the transport chain 26 passes through. The cellular wheel 54 is of the transport chain either directly or indirectly, e.g. via a gearbox, driven.
    In the embodiments shown in FIGS. 2 to 4, the drive of the cellular wheel 54 via a gear 60, which connects a provided in the field of rotary valve 40 guide wheel 28.2 for the transport chain 26 mechanically connects to the feeder 54. The transmission 60 allows the axis of rotation of the cellular wheel 54 to be offset in the vertical direction with respect to the axis of rotation of the deflection wheel 28.2. Incidentally, both axes of rotation are parallel to one another. The offset of the axis of rotation of the guide wheel 28.2 and cellular wheel 54 has a dimension which corresponds at least approximately to a radius of the container to be transported minus the radius of the transport pins 42. The offset of the two axes of rotation thus takes into account the fact that the containers 44 are not concentrically fixed to the transport pins 42, but rather are suspended on these, so that a respective center of the container 44 is below the respective transport pin 42. As can be seen from the figures, the containers 44 are preferably transported from bottom to top through the heating zone inlet openings 20. Accordingly, the rotary valve inlet opening 50 is located on the underside of the rotary valve 40.
    In the embodiments illustrated in FIGS. 2 to 4, the transport path of the container 44 by the rotary valve follows an arc of about 90 ° degrees, so that the container initially enter in vertical ascending direction in the rotary valve 40 and then in the lateral direction leave. This transport path is effected by the guide wheel 28.2, which also drives the cellular wheel 54. Another guide pulley 28.3 then directs the transport chain 26 again in a direction pointing vertically upwards.
    Fig. 5 shows a schematic representation of a similar rotary valve 40 'as shown in Fig. 2 to 4. In particular, the rotary feeder 40 "depicted in Fig. 5 also has a deflection wheel with an axis of rotation which is offset with respect to the axis of rotation of the feeder 54. In Fig. 5, indicated by the guide pulley circular arc 62, along which the conveyor chain 26 'through It is easy to see that the circular arc 62 has a center which is offset from the center of the rotary valve 40. The offset of the centers reflects the laterally offset rotational axes of the cellular wheel 40 and the guide wheel.
    Fig. 6 shows a schematic representation of an alternative embodiment of a rotary valve 40 ", which is traversed by the transport chain 26" in a straight line. In order to prevent contact of the containers 44 with the cell walls 56 ', the cell walls 56 "are bent in the radial direction. The bending of the cell walls is indicated only schematically in FIG. 6 and may in fact have a shape other than that shown.
    7, the transport chain 26 is guided around a deflection wheel 28.2 '', whose axis of rotation is coaxial with the axis of rotation of the cellular wheel 40 '.' In this embodiment, a contact between The walls of the cells are in turn bent in Fig. 7 and may in fact have a shape other than that shown.
    Fig. 8 shows a rotary valve similar to that shown in Fig. 7, but instead of the transport pins, as shown in the other embodiments, plate pins 42 'are provided. The plate pins 42 'are like the other transport pins connected at their foot with the Trabsportkette 26 and protrude with its free end in the container to be transported. In contrast to the transport pins, which have at their free end only a relatively small soft cap, the disk pins 42 'two radially projecting from a central shaft of the disk pin discs are provided, one of which is provided at or near the free end of the shaft , while the other disc is located near the foot end of the plate pin - so near the transport chain. The diameter of the discs is only slightly smaller than the inner diameter of the container to be transported. This prevents the transported containers from moving laterally, e.g., to shuttle around the transport pin. Thus, the use of plate pins allows a tighter dimensioning of the cells of the respective rotary valve, as there is no free space for eventual
    Pendulum movements of the container must be provided. Therefore, the use of plate pins in all embodiments shown here is advantageous.
    If dish pins are provided as transport pins, a vertical offset of the axes of rotation of the bucket wheel and guide wheel can be omitted or dimensioned very small, since then the centers of plate pins and containers held by them are very close to each other.
    Fig. 9 shows a further alternative embodiment of a rotary valve 40 "" in which the transport path for the transport chain 26 through the rotary valve 40 "" not just, but runs along an arc with a very large radius. Again, the cell walls 56 "" are bent back to avoid contact with the cell walls 56 "and containers 44. The bending of the cell walls is indicated only schematically in Fig. 8 and may actually have a different shape than that shown.
    Fig. 10 shows a variant of a rotary valve 70, which is suitable in connection with a conveyor belt 72 with attached transport basket 74 for the transport of internally painted container. Internally painted containers may touch the corresponding means of transport on their outside, whereas the inside of the internally painted containers should not be touched. Therefore, the containers 44 are arranged in transport baskets 74. In order to discharge the containers 44 through the rotary valve 70 from the inner space 76, the conveyor belt 72 is deflected, so that the transport basket 74 relative to the bucket 70 head and the container 44 can fall from the respective transport basket 74 into a respective cell 78 of the rotary valve and then then be discharged from the rotary valve. A guide device 80 prevents the containers 44 from falling out of the respective transport basket 74 too early.
    Fig. 11 shows an alternative embodiment of a furnace 10 'in which both a Heizzoneneintrittsöffnung and at a cooling zone outlet opening each a rotary valve 40.1 and 40.2 is provided so that no supply air can enter through these openings in the cooling zone 14 or the heating zone 12 , Accordingly, a separate supply air opening 90 is provided, can be introduced via the supply air in the heating zone 12. The supply air opening 90 is connected via a supply air channel 92 with a cross-flow heat exchanger 94. The cross-flow heat exchanger 94 is also connected to an exhaust duct 96 through which the exhaust air from the exhaust port 30 from the heating zone 12 is discharged. Via the cross-flow heat exchanger, the discharged exhaust air can deliver heat energy to the supply air to be supplied.
    Fig. 12 shows an alternative embodiment similar to that shown in Fig. 10, in which instead of a cross-flow heat exchanger a regenerator 100 with two chambers 102 and 104 is provided. Through the chambers 102 and 104 supply air and exhaust air are alternately performed, so that a respective chamber 102 and 104 is first heated by means of warm exhaust air and then flows through the supply air and thereby emits the heat absorbed back to the supply air. The provision of two regenerator chambers makes it possible to heat each time one regenerator chamber by means of the warm exhaust air, while the other regenerator chamber gives off heat to supply air to be supplied. As soon as the first regenerator chamber has absorbed enough heat and the other regenerator chamber has largely cooled down, the two air streams are exchanged so that the previously cooled regenerator chamber is reheated while the previously reheated regenerator chamber transfers heat to the supply air.
    Cross-flow heat exchangers or regenerators are only examples of known heat recovery means and it is understood that the described furnace is to be realized with other heat recovery agents.
    A heat recovery means of heat exchanger or regenerator is particularly useful only in conjunction with a product lock, which prevents unwanted air currents, makes sense.
    Legend 10 Furnace 12 Heating zone 14 Cooling zone 16 Walls 18 Partition wall 20 Heating zone inlet opening 22 Heating zone outlet opening 24 Cooling zone outlet opening 26 Transport chain
    权利要求:
    Claims (12)
    [1]
    28 deflecting wheels 28.2 deflecting wheel 30 exhaust air opening 32 air guide walls 40 rotary valve 42 transport pin 44 container 46,48 rotary valve wall 50 rotary valve inlet opening 52 cellular wheel outlet opening 54 cellular wheel 56 cell wheel wall 58 cells 60 gear 62 circular arc 70 rotary valve 72 conveyor belt 74 transport basket 76 interior 78 cell 80 guide 90 supply air opening 92 supply air duct 94 cross flow Heat exchanger 96 Exhaust air duct 100 Regenerator 102, 104 Regenerator chamber Claims
    1. Furnace (10), in particular interior or oven, for drying painted or decorated containers (44), such as bottles, tubes or metal cans, in particular aerosol cans, with one of walls (16) enclosed heating zone (12) having a heating zone inlet opening (20) and a Heizzonenaustrittsöffnung (22), which are dimensioned so that to be dried container (44) through them in the heating zone (12) or emerge from the heating zone (12), - a transport chain (26), a conveyor belt (72 ), a conveyor chain system with baskets or the like for the transport of containers (44) through the heating zone (12), and - with an exhaust port (30) and an exhaust system to exhaust air from the heating zone (12), characterized in that at the Heating zone inlet opening (20) a rotary valve (40, 40.2) is provided and that the drive of the rotary valve (40, 40.2) by the transport chain (26) and the arrangement d he cell walls of the rotary valve (40; 40.2) are designed such that containers (44) held by the transport chain (26) can be transported through the rotary valve (40; 40.2) without touching the cell walls.
    [2]
    2. oven (10) according to claim 1, characterized in that the rotary valve (40) from the transport chain (26), the conveyor belt (72) or the transport chain system is driven with cups.
    [3]
    3. oven (10) according to claim 1 or 2, characterized by a in the oven (10) integrated cooling zone (14), which adjoins directly to the heating zone (12) and how these from the walls (16) of the furnace (10 ), wherein the cooling zone (14) is separated from that of the heating zone (12) by a dividing wall (18) in which the heating zone exit opening (22) is arranged so that the heating zone exit opening (22) acts as an inlet opening for the cooling zone (14 ) and the transport chain (26), the conveyor belt (72) or the conveyor chain system with cups transporting containers (44) through the heating zone inlet opening (20) in the heating zone (12), through the heating zone (12) through to the Heizzonenaustrittsöffnung ( 22) and through the latter into the cooling zone (14), through which it can bring about a cooling zone outlet opening (24).
    [4]
    4. Furnace (10) according to at least one of claims 1 to 3, characterized in that also at the Heizzonenaustrittsöffnung (22) or the cooling zone outlet opening (24) a product lock, in particular a rotary valve (40.1) is provided.
    [5]
    5. Furnace (10) according to claim 4, characterized in that the drive of the rotary valve (40.2) at the Heizzonenaustrittsöffnung (20) or the Kühlzonenaustrittsöffnung (24) by the transport chain (26) and the arrangement of the cell walls of the rotary valve (40) so are designed so that from the transport chain (26) held container (44) can be transported without touching the cell walls through the rotary valve (40).
    [6]
    6. oven (10) according to at least one of claims 1 to 5, characterized in that the transport chain (26), the conveyor belt (72) or the transport chain system with cups for the transport of containers (44) through the heating zone inlet opening (20) in the heating zone (12) is arranged and formed through the heating zone (12) to and through the heating zone exit opening (22).
    [7]
    7. Furnace (10) according to at least one of claims 1 to 6, characterized in that a deflection wheel (28.2) for the transport chain (26) in the region of the rotary valve (40) is arranged.
    [8]
    8. oven (10) according to claim 7, characterized in that the rotary valve (40) has a cellular wheel (54) having an axis of rotation which is parallel to a rotational axis of the guide wheel (28.2) and this is offset from the vertical.
    [9]
    9. Furnace (10) according to at least one of claims 1 to 4, characterized in that the conveyor belt (72) or the transport chain system with cups and the rotary valve are adapted to transfer containers to be transported from the transport chain to the rotary valve or vice versa.
    [10]
    10. oven (10) according to at least one of claims 1 to 9, characterized in that the heating zone has a dedicated supply air opening, which is connected to a supply air duct, while the exhaust port is connected to an exhaust duct and supply air and exhaust duct via heat exchanger or heat recovery means (94; 100) are coupled with each other such that heat from the exhaust air can be transmitted to the supply air.
    [11]
    11. A furnace (10) according to claim 10, characterized in that the heat exchanger or heat recovery means (94; 100) comprise a cross-flow heat exchanger (94) and / or a regenerator (100).
    [12]
    12. A method for operating a furnace according to at least one of claims 1 to 11, characterized in that the cans are fed via a rotary valve, a heating zone of the furnace.
    类似技术:
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    同族专利:
    公开号 | 公开日
    CH713741B8|2021-12-15|
    CH713741B1|2021-09-30|
    DE102017109286A1|2018-10-31|
    DE102017109286B4|2021-07-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE19739326C1|1997-09-09|1999-04-29|Fehland Engineering Gmbh|Drinks containers advanced through treatment chamber with separating doors|
    DE10340037A1|2003-08-28|2005-03-24|Peltzer-Werke Form & Präzision in Metall GmbH|Collection, sorting and compressing of single use returned drinks containers, especially plastic bottles and drinks cans, whereby the sorting and separation arrangement comprises a rotary cellular feeder|
    法律状态:
    2021-10-29| PK| Correction|Free format text: BERICHTIGUNG |
    2021-11-15| PK| Correction|Free format text: BERICHTIGUNG |
    2021-12-15| PK| Correction|Free format text: BERICHTIGUNG B8 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102017109286.2A|DE102017109286B4|2017-04-28|2017-04-28|Furnace for the heat treatment of containers|
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