THERMAL TREATMENT DEVICE AND METHOD FOR OPERATING THE THERMAL TREATMENT DEVICE

Description

[0001] The invention relates to a thermal treatment device according to claim 1 and a method for operating the thermal treatment device according to claim 13. State of the art

[0002] KR 101 287 160 B1 discloses a thermal treatment device according to the preamble of claim 1. The aforementioned document discloses a transfer of containers, which are transported in a first direction on several parallel conveyors of a feeder, to a mass flow conveyor, which transports them in a second direction perpendicular to the first direction. Between the feeder and the mass flow conveyor, a conveyor is provided which transports the containers in a third direction opposite to the first direction.

[0003] DE 10 2016 205 304 A1 discloses a low-pressure storage device and / or distribution unit for containers comprising a storage table with conveyor belts for conveying the containers through the storage table and with storage belts that run along both sides of the conveyor belts and can be driven more slowly than the conveyor belts. Furthermore, a feed conveyor for the containers is provided in the inlet area.Because the feed conveyor runs transversely, in particular at right angles, to the through conveyors and the storage conveyors, because a transfer belt running in the opposite direction to the feed conveyor is formed between the feed conveyor and the storage table, and because at least one deflection element is formed in the infeed area to deflect the containers from the feed conveyor onto the storage table, a flow of conveyed containers can be directed selectively and reliably onto the through conveyors, and at the same time an infeed area with high infeed speed and compact dimensions can be provided.

[0004] DE 10 255 814 A1 discloses a device for separating and dividing container flows with at least one container inlet, at least two inlet belts and at least one guide element arranged in the container flow, wherein it is provided that the conveyor belts usual in transport systems are guided within the separation in such a way that they separate and divide the container flow.

[0005] Such devices can require a lot of space in a plant, and the forces acting on the containers can be high. Task

[0006] The object of the invention is to provide a thermal treatment device, such as a pasteurizer, cooler or heater, with at least one container feeding device for feeding containers to a mass flow conveyor, which can be operated in a space-saving manner and wherein forces acting on the containers in the container feeding device can be reduced. Solution

[0007] This problem is solved by the thermal treatment device with at least one container feeding device according to claim 1 and the method for operating the thermal treatment device according to claim 13. Further features of the invention are disclosed in the dependent claims.

[0008] The thermal treatment device, such as a pasteurizer, cooler, or heater, with at least one container feeder for feeding containers to a mass flow conveyor, is arranged downstream of the at least one container feeder. The container feeder comprises an inlet conveyor with at least one lane, which is driveable in a first direction and configured to convey containers in that first direction.The container feeding device further comprises, parallel to the at least single-lane inlet conveyor, a first group of several parallel first conveyors, which are driven in the first direction and configured to convey containers in the first direction, and, parallel to the first group of several parallel first conveyors, a second group of several parallel second conveyors, which are driven in a second direction and configured to convey containers in the second direction, opposite to the first direction. The containers can be discharged from the second group of several parallel second conveyors transversely to the second direction towards a mass flow conveyor.

[0009] The containers can include glass bottles, PET bottles, and / or cans. For example, the containers are filled with a product that is to be thermally treated in or by means of the thermal treatment device.

[0010] The thermal treatment device can be a pasteurizer, a cooler, or a heater. In a pasteurizer, the thermal treatment involves pasteurizing the containers, including the product inside them. In a cooler, the thermal treatment involves cooling the containers, including the product inside them. In a heater, the thermal treatment involves heating the containers, including the product inside them.

[0011] The container feeding device can be supplied with containers, for example those filled with product, by a transport device that may be arranged upstream of the container feeding device. The transport device can feed the containers to the container feeding device in a single lane.

[0012] The infeed conveyor of the container feeding device, which has at least one lane, can be considered an infeed to the first group. The first group can comprise a number n > 1 of first conveyors, for example, n = 3. The first (n = 1) of the first conveyors can be arranged adjacent to the infeed conveyor, which has at least one lane, the second (n = 2) of the first conveyors can be arranged adjacent to the first (n = 1) of the first conveyors, and the third (n = 3) of the first conveyors can be arranged adjacent to the second (n = 2) of the first conveyors.

[0013] The second group can comprise a number of m > 1 second conveyors, for example m = 3 (the number of conveyors in the first and second groups can also be different). The first (m = 1) of the second conveyors can be located adjacent to the third (n = 3) of the first conveyors, the second (m = 2) of the second conveyors can be located adjacent to the first (m = 1) of the second conveyors, and the third (m = 3) of the second conveyors can be located adjacent to the second (m = 2) of the second conveyors and the mass flow conveyor.

[0014] Parallel following can mean that a distance may be provided between the at least single-lane inlet conveyor and / or the conveyors and / or a conveyor and the mass flow conveyor, which may be smaller than the diameter of a container, or a push plate with a width that may be smaller than the diameter of a container.

[0015] The first group can be summarized as the multiple first conveyors that can be driven in the first direction. These multiple first conveyors can be individually driven. Drive speeds can be controlled by a control device, which may be integrated into the container feeder. The drive speeds can be the same or different for the multiple first conveyors. Each first conveyor can have a transport surface, which may be coplanar. The same applies to the second group, which can be summarized as the multiple second conveyors that can be driven in the second direction.

[0016] The terms "first" and "second" are used solely to distinguish the elements, but are not otherwise to be understood as further restrictive.

[0017] The single-lane inlet conveyor may include a conveying surface. The mass flow conveyor may include a conveying surface.

[0018] In the thermal treatment device with at least one container feed device, the various transport surfaces can be arranged coplanarly if the at least one container feed device is horizontally oriented (perpendicular to the direction of gravity). The transport surface of the thermal treatment device can always be horizontally oriented (perpendicular to the direction of gravity). However, it can also be provided that the transport surface of the thermal treatment device can form an angle of 0.5° to 14° (including the range limits) with a plane perpendicular to the direction of gravity.

[0019] The container feeding device can include a discharge area in which the containers can be discharged from the second group of several parallel second conveyors transversely to the second direction in the direction of a mass flow conveyor, and which has a length that is at least twice as large as a conveying width of the container feeding device.

[0020] The discharge area can be encompassed by the second conveyor located adjacent to the mass flow conveyor. The discharge area can include at least a portion of the transport surface of this second conveyor, and containers can be discharged from the discharge area by following containers perpendicular to the second direction towards the mass flow conveyor.

[0021] The conveying width of the container feeding device can be the sum of the conveying widths (a conveying width can, for example, be the width of the respective transport surface) of the single-track infeed conveyor, the first conveyor, and the second conveyor. In addition to this sum of conveying widths, possible distances between the single-track infeed conveyor and the first group, and between the first group and the second group, can also be added to the conveying width of the container feeding device. Possible distances between the first conveyors and between the second conveyors can also be added to the conveying width of the container feeding device. The width can be measured in a plane of the transport surfaces perpendicular to the first or second direction.

[0022] Since the length of the discharge area is at least twice the conveying width of the container feeder, the containers can be discharged to the mass flow conveyor without high back pressure building up between them. The length can be measured along either the first or second direction.

[0023] The mass flow conveyor can comprise one or more conveyor belts arranged side by side, moving in a third direction perpendicular to the first and second directions. The mass flow conveyor is generally not included by the container feeding device, but it may be.

[0024] The discharge area can be arranged relative to the mass flow conveyor such that containers can be discharged from the transport surfaces of the second conveyor to a transport surface of the mass flow conveyor. The discharge area can be arranged opposite an inlet area of ​​the mass flow conveyor.

[0025] Containers can be discharged directly (possibly directly via the overrun plate / space between them) to the mass flow conveyor from a second conveyor that is located immediately adjacent to the mass flow conveyor (by pressure from following containers).

[0026] In another embodiment of the container feeding device, a further single-track feed conveyor (or several, such as two or three further single-track feed conveyors) can be provided in parallel to the second group of several parallel second conveyors, wherein the further single-track feed conveyor or the several further single-track feed conveyors can be driven in the first direction and configured to convey containers in the first direction. The drive of the several further single-track feed conveyors can be independent of one another.

[0027] The additional single-lane feed conveyor, or several additional single-lane feed conveyors, can be arranged between the second group and the mass flow conveyor. It can or can be considered an inlet to the mass flow conveyor.

[0028] Since the additional single-track feed conveyor or the several additional single-track feed conveyors move in the first direction, i.e., in the original feed direction of the at least single-track feed conveyor, the distribution and discharge of the containers to the mass flow conveyor can be improved. Containers discharged from the additional single-track feed conveyor or the several additional single-track feed conveyors to the mass flow conveyor can also be effectively discharged into a section of the mass flow conveyor opposite the end of the additional single-track feed conveyor or the ends of the several additional single-track feed conveyors.

[0029] The additional single-track feed conveyor, or the several additional single-track feed conveyors, can each comprise a transport surface.

[0030] The additional single-track feed conveyor or the several additional single-track feed conveyors can / can comprise a feed length section along which containers can be fed from the additional single-track feed conveyor or the several additional single-track feed conveyors to the mass flow conveyor, wherein the feed length section can have a length that is at least twice the conveying width of the container feeding device. This conveying width of the container feeding device can be the sum of the conveying widths (a conveying width can, for example, be the width of the respective transport surface) of the at least single-track feed conveyor, the first conveyors, the second conveyors, and the additional single-track feed conveyor or the several additional single-track feed conveyors.In addition to the sum of the conveyor widths, the conveying width of the container feeding device can also include any distances between the at least single-lane infeed conveyor and the first group, between the first group and the second group, and between the second group and any further single-lane infeed conveyors. The conveying width of the container feeding device can also include any distances between the first conveyors, between the second conveyors, and, if present, between any further single-lane infeed conveyors. The width can be measured in a plane of the conveying surfaces perpendicular to the first or second direction.

[0031] The length of the feed length zone can be measured along the first or second direction. The feed length zone can extend along a portion of the conveying surface of the subsequent single-lane feed conveyor. Since the length of the feed length zone is at least twice the conveying width of the container feed device, the containers can be discharged to the mass flow conveyor without high back pressure developing between them.

[0032] A railing with deflectors is provided above a transport surface of the at least single-lane inlet conveyor and above at least some transport surfaces of the several parallel first conveyors.

[0033] The term "above" can, here and subsequently, also encompass the fact that the railing may be located not only in an area where physical contact with the containers can occur, for example, in an area of ​​influence on the containers, but also in an area where no physical contact with the containers can occur (the railing may then be located outside an area of ​​influence on the containers). Physical contact can occur if the container, at least partially, makes contact with the railing, at least partially.

[0034] The railing can consist of several layers, arranged in a fish-scale-like fashion, at least partially overlapping. This partial overlap can create one or more deflectors.

[0035] The deflectors of this railing can have the same or different cross-sectional shapes, depending, for example, on their position within the railing. For instance, deflectors closer to the single-lane infeed conveyor can have smaller dimensions than those further away. The cross-section of a deflector, and thus its cross-sectional shape, can be determined by a plane parallel to the conveying surface of the single-lane infeed conveyor.

[0036] The deflectors can be positioned along the railing, for example, in one longitudinal direction, at equal or varying intervals. Using the deflectors in the railing, the containers can be distributed from the single-lane inlet onto the several parallel first conveyors with little or no pressure from the subsequent containers.

[0037] A deflector can be designed to extend from the railing, which may be straight or curved, at a shallow angle and then return at a steep angle. The shallow angle prevents containers that come into contact with the deflector from tipping over and / or prevents excessive pressure (stagnation pressure and / or conveying pressure) from acting on the containers. For example, it can ensure that a force of 50 N to 80 N is not exceeded. The steep angle provides sufficient space for containers that have passed the deflector to move, if necessary, into an area behind it.

[0038] For example, if five first conveyors are planned, the railing with the deflectors, viewed from the first direction, can initially run straight along one side (e.g., the right side) of the infeed conveyor (at least one track), then diagonally across the infeed conveyor (at least one track) using three deflectors, then straight along one side (e.g., the right side) of the first of the first conveyors, then partially diagonally across the first of the first conveyors using one deflector, then straight along the middle of the first of the first conveyors, and finally partially diagonally across the second of the first conveyors using one deflector. The railing with the deflectors is not, for example, provided above the transport surface of the third to fifth of the first conveyors. A different railing or similar device, or a different type of deflection device, can be provided there.

[0039] At the end of at least some of the several parallel first conveyors and at the beginning of at least some of the several parallel second conveyors, a concave railing is provided above the transport surfaces, wherein, for example, the concave railing includes a curve that describes an angle which can be in an angular range of 165° to 195°.

[0040] For example, a 180° curve may be planned.

[0041] The curve allows the discharge of containers from the second group or from the additional single-lane feed conveyor to the mass flow conveyor—for example, the filling of the mass flow conveyor—to be decoupled from the container flow entering through the single-lane feed conveyor. This prevents increased pressure loads on containers caused by backflow into the single-lane feed conveyor.

[0042] If five first and five second conveyors are provided, the concave railing can be provided above the transport surfaces of the second to fifth first conveyors and the first to fifth second conveyors.

[0043] The railing with the deflectors transitions into the concave railing. This ensures the smooth transport of containers as they move from a section of the railing with deflectors to a section of the concave railing.

[0044] Above the transport surface at the end of the further single-track feed conveyor or above the conveying surfaces at the ends of the several further single-track feed conveyors (if this / these is / are provided in the container feed device), a further concave rail may be provided, wherein, for example, the further concave rail transitions into the concave rail, wherein, for example, the further concave rail includes a curve that describes an angle which may be in an angular range of 75° to 105°.

[0045] For example, a 90° curve may be planned.

[0046] The additional concave railing allows containers being discharged from the additional single-track feed conveyor or the several additional single-track feed conveyors to the mass flow conveyor to be effectively discharged into an area of ​​the mass flow conveyor that is opposite the end of the additional single-track feed conveyor or the ends of the several additional single-track feed conveyors.

[0047] Above the transport surfaces of the first and second groups, a straight railing may be provided between the first and second groups, designed in such a way that a transition area for containers may be provided between the first and second groups.

[0048] The straight railing prevents containers from unintentionally moving from the first group to the second group.

[0049] The transition area is intended for the transfer of containers between the first and second groups; the straight railing is not present in this transition area. The transition area for containers between the first and second groups may include a gap between the first and second groups that is smaller than the diameter of a container, or a sliding plate with a width that is smaller than the diameter of a container.

[0050] A railing with steps can be provided above the transport surfaces of the several parallel secondary conveyors, with the railing and steps, for example, leaving the transition area for containers clear. The steps allow the containers to be conveyed from the several parallel secondary conveyors to the mass flow conveyor with little or no pressure.

[0051] A step can be designed to branch off from the railing at a shallow angle, which may be straight or curved, and at the end of the step the railing continues. This shallow angle prevents containers that come into contact with a deflector from tipping over and / or prevents excessive pressure (stagnation pressure and / or conveying pressure) acting on the containers.

[0052] The railing with steps allows containers to be moved along, diagonally along, and / or perpendicular to the secondary conveyors. The containers can thus be transferred to the last of the secondary conveyors and from there, for example, to the mass flow conveyor, the next single-lane infeed conveyor, or several other single-lane infeed conveyors.

[0053] If five secondary conveyors are planned, the railing with its steps can extend from the first to the fifth secondary conveyor. The railing can run diagonally across the first of the secondary conveyors; a step can be provided at the transition from the first to the second of the secondary conveyors; then the railing can run from the middle of the second of the secondary conveyors to the middle of the third of the secondary conveyors; then a step can be provided at the transition from the third to the fourth of the secondary conveyors; and finally the railing can run to the middle of the fifth of the secondary conveyors.

[0054] The straight railing can transition into the railing with steps. This ensures the smooth transport of containers from one section of the straight railing to another section of the railing with steps.

[0055] The transition zone, viewed along the first or second direction, can have a length that is 1.8 to 3 times or 1.5 to 4 times greater (including the zone boundaries) than the conveying width of the first or second group, respectively. This length of transition zone allows for a loose transport of the containers.

[0056] The at least single-track inlet conveyor and / or the several parallel first conveyors and / or the several parallel second conveyors and / or the further single-track inlet conveyor or the several further single-track inlet conveyors (if present in the container feeding device) may each comprise transport surfaces that are arranged coplanarly in a plane, wherein the plane may form an angle of 0.5° to 14° (including the area limits) with a plane perpendicular to the direction of action of gravity, or for example an angle of 0.5° to 11°, or for example an angle of 0.5° to 8°.

[0057] The coplanar arrangement of the respective transport surfaces in one plane makes it possible to transfer containers between the different conveyors.

[0058] The coplanar arrangement can also exist without the plane forming an angle of 0.5° to 14° with a plane perpendicular to the direction of gravity, for example, if the angle is 0°.

[0059] Because the plane can form an angle of 0.5° to 14° with the plane perpendicular to the direction of gravity, or for example an angle of 0.5° to 11°, or for example an angle of 0.5° to 8°, the downslope force can also act on the containers.

[0060] The value ranges mentioned here and below for the angle that the plane in which the respective transport surfaces are located can form with a plane perpendicular to the direction of gravity can be selected or determined based on the type of container being transported. Containers can be transported safely despite the angle. However, tipping over or unstable transport should be avoided despite the angle. For a given container type, factors such as the height of the container's center of gravity above the transport surface, the container's footprint on the transport surface, the container's rigidity, and / or the container's weight can be considered when selecting or determining the angle.For PET bottles, for example 1.5L PET bottles, the plane of the transport surfaces can form an angle of 0.5° to 2° with the plane perpendicular to the direction of gravity. For cans, for example metal or composite cans, the plane of the transport surfaces can form an angle of 1° to 5° with the plane perpendicular to the direction of gravity. For glass bottles, for example 0.5L beer bottles or 1L soft drink bottles, the plane of the transport surfaces can form an angle of 3° to 8° with the plane perpendicular to the direction of gravity.

[0061] The angle formed by the plane of the transport surfaces with the plane perpendicular to the direction of gravity can be chosen or set as large as possible and as small as necessary.

[0062] The railing with deflectors, the concave railing, the straight railing, the railing with steps and / or the further concave railing (if provided in the container feed device) can also be inclined and enclose an angle with a plane perpendicular to the direction of gravity, which can be in a range of 0.5° to 14° (including range limits), or for example in a range of 0.5° to 11°, or for example in a range of 0.5° to 8°.

[0063] The container feeder can be arranged on one or more support structures or the like and may include, for example, one or more tilting mechanisms. The support structure or structures can be connected to the tilting mechanism or mechanisms so that the angle can be changed and / or adjusted by means of the tilting mechanism or mechanisms. The tilting mechanism or mechanisms can be controlled by one or more control devices. The one or more control devices of the tilting mechanism or mechanisms can also be provided for controlling the drive speeds of the conveyors, or the one or more control devices of the tilting mechanism or mechanisms can be provided independently of a control device for controlling the drive speeds of the conveyors.

[0064] The container feeding device may further include a control device for controlling the drive speeds of the conveyors, wherein, for example, a control may be provided in which the mathematical amount of drive speeds decreases in the first direction from the at least single-lane inlet conveyor to the several parallel first conveyors,wherein the mathematical magnitude of the drive speeds of the several parallel second conveyors in the second direction initially increases and then decreases again, and / or wherein the mathematical magnitude of a drive speed of the further single-track feed conveyor (if present in the container feed device) in the first direction is the smallest of the mathematical magnitudes, or wherein the mathematical magnitudes of the drive speeds of the several further single-track feed conveyors in the first direction are each smaller than an magnitude of the drive speed of the slowest of the several parallel second conveyors.

[0065] For example, the progression between different drive speeds can be non-linear. The progressions can be percentages or factors.

[0066] The drive speed of the infeed conveyor (at least one track) can serve as a boundary condition for the drive speeds of the other conveyors (first conveyor, second conveyor, further single-track infeed conveyors). It may be stipulated that the conveyor located upstream of the bulk conveyor operates at a maximum drive speed. This maximum drive speed may be not exceeded to allow for the discharge of containers from the upstream conveyor to the bulk conveyor.

[0067] If the drive speed of the single-track infeed conveyor is increased / decreased, the drive speeds of the subsequent conveyors (first conveyor, second conveyor, further single-track infeed conveyors) can also be increased / decreased accordingly. These increases / decreases can be non-linear. For example, the drive speeds can be increased / decreased by a percentage, or they can be doubled / halved.

[0068] The drive speeds of the infeed conveyor, which has at least one track, can range from 0.05 m / s (for example, at a throughput of 4,500 containers per hour with a container diameter of 35–40 mm) to 5 m / s (for example, at a throughput of 225,000 containers per hour with a container diameter of 75–80 mm). Alternatively, or in addition, the drive speeds of the infeed conveyor, which has at least one track, can range from 0.15 m / s (for example, at a throughput of 10,000 containers per hour with a container diameter of 50–53 mm) to 3.5 m / s (for example, at a throughput of 180,000 containers per hour with a container diameter of 64–66 mm).

[0069] As an example of the different drive speeds, consider the following: A speed of 1.7 m / s can be specified for the infeed conveyor, which has at least one track. For example, five first conveyors in a first group, speeds of 0.85 m / s, 0.6 m / s, 0.55 m / s, and 0.25 m / s can be specified. For example, five second conveyors in a second group, speeds of 0.15 m / s, 0.35 m / s, 0.4 m / s, 0.35 m / s, and 0.15 m / s can be specified. If the additional single-track feed conveyor is present, a speed of 0.08 m / s can be specified for it. For example, the mathematical value of a drive speed for the mass flow conveyor can be 0.0156 m / s.

[0070] The control device can also, or solely, be configured to control an amount of the drive speed of the at least single-track infeed conveyor such that the at least single-track infeed conveyor transports containers in the first direction in a number per unit of time that corresponds to the number per unit of time of a device upstream of the thermal container feeding device. The device can be directly upstream of the thermal container feeding device, with, for example, only one or more conveyors being arranged between the upstream device and the thermal container feeding device. For example, the control device can be configured to receive information and / or data from the upstream device, including the number per unit of time.

[0071] The thermal container feeding device can be designed such that exactly one single-lane inlet conveyor can be provided.

[0072] Alternatively, the thermal container feeding device can be designed in such a way that two or more single-lane inlet conveyors can be provided.

[0073] The infeed conveyor (at least one track), the first conveyors of the first group, the second conveyors of the second group, and the one or more single-track feed conveyors can each run parallel or substantially parallel to one another. The aforementioned conveyors can be designed such that both the magnitude and direction of the drive speed are variable. These conveyors can be driven in both directions.

[0074] For example, it is not intended that a conveyor, which may be included by the thermal container feeding device described above or below, and which can transport containers in a n. direction, may describe one or more curves and then transport the containers in a m. direction, with the n. and m. directions being opposite to each other. This also applies to multiple conveyors, which may be included by the thermal container feeding device described above or below. The one or more conveyors may include or be: the at least single-lane inlet conveyor, one or more of the first conveyors of the first group, one or more of the second conveyors of the second group, the further, or one or more of the further single-lane inlet conveyors.

[0075] The thermal treatment device can comprise one treatment deck. The mass flow conveyor (here, one) can be located on this treatment deck. With only one treatment deck, a single container feeder is sufficient to feed the containers from the container feeder to the single mass flow conveyor of the treatment deck.

[0076] Alternatively, the thermal treatment device can comprise two or more treatment decks and, accordingly, two or more container feeding devices. The treatment decks can be arranged one above the other in one direction of gravity. For example, if the thermal treatment device has three treatment decks, each treatment deck can be equipped with a mass flow conveyor, resulting in a total of three mass flow conveyors. To feed containers to the respective mass flow conveyors of the three treatment decks, three container feeding devices can be provided.

[0077] The thermal treatment device can further include an additional control device for controlling the speed of the mass flow conveyor. The speed of the mass flow conveyor can be controlled depending on the drive speeds, or the speed of the mass flow conveyor can be fixed. The drive speeds can be controlled by the control device depending on the speed of the mass flow conveyor. If several mass flow conveyors are provided, the additional control device can be provided for controlling the respective speeds of the several mass flow conveyors. The respective speeds can be controlled independently for the several mass flow conveyors, or a single speed can be controlled for all of the several mass flow conveyors.

[0078] The control device and the further control device can also be designed as a single, combined control device.

[0079] The invention further relates to the method for operating the thermal treatment device as described above or below.

[0080] In this process, the container feed device can be controlled by means of the control device and / or the mass flow conveyor can be controlled by means of the further control device.

[0081] If the container feed device is controlled by means of the control device, the mathematical value of the drive speed of the at least single-track inlet conveyor in the first direction can be in a range of 0.05 m / s to 3.5 m / s.Furthermore, it may be provided that the mathematical value of the drive speeds from the at least single-track inlet conveyor to the several parallel first conveyors decreases in the first direction, wherein the mathematical value of the drive speeds of the several parallel second conveyors initially increases and then decreases again in the second direction, and / or wherein the mathematical value of a drive speed of the further single-track inlet conveyor (if present in the container feeding device) in the first direction is the smallest of the mathematical values, or wherein the mathematical values ​​of the drive speeds of the several further single-track inlet conveyors in the first direction are each smaller than a value of the drive speed of the slowest of the several parallel second conveyors.

[0082] For example, in a control system, the mathematical value of the drive speed of the at least single-track infeed conveyor in the first direction can be in the range of 1.5 m / s to 1.9 m / s, wherein the mathematical value of the drive speeds of the several parallel first conveyors in the first direction can decrease from 0.65 m / s to 1.05 m / s to 0.05 m / s to 0.45 m / s, wherein the mathematical value of the drive speeds of the several parallel second conveyors in the second direction can initially increase from 0.01 m / s to 0.35 m / s to 0.2 m / s to 0.6 m / s and then decrease again from 0.15 m / s to 0.55 m / s to 0.01 m / s to 0.35 m / s, and / or wherein the mathematical value of a drive speed of the further single-track feed conveyor (if present in the hopper feed device) in the first direction is the smallest of the mathematical values ​​with It can be between 0.06 m / s and 0.1 m / s.The specified area boundaries are included in each case.

[0083] The values ​​of the mathematical amounts, as stated above, can also be used for control purposes here.

[0084] The same principles apply to drive speeds as explained above. Brief character description

[0085] The accompanying figures serve to better understand and illustrate aspects of the invention. They show: Figure 1 a top view of a schematic view of a first embodiment of a container feeding device, Figure 2 a top view of a schematic view of a second embodiment of a container feeding device, Figure 3 a side view of the Figure 1 looking in the second direction, with the transport surfaces arranged at an angle, Figure 4 a side view of the Figure 2looking in the second direction, with the transport surfaces arranged at an angle, Figure 5 a top view of a schematic view of the second embodiment of the container feeding device in which a container distribution at a given time is shown, Figure 6 an oblique view of a thermal treatment device with two treatment decks and two container feed devices that are horizontally aligned and Figure 7 An oblique view of a thermal treatment device with two treatment decks and two container feed devices, which are inclined. Character description

[0086] The Figure 1Figure 1 shows a top view of a schematic view of a first embodiment of a container feeding device 1 for feeding containers to a mass flow conveyor 18. The mass flow conveyor 18 is generally not included by the container feeding device 1, but it may also be included by it.

[0087] The container feeding device 1 comprises an inlet conveyor 2 with at least one track (shown here as single-track and therefore hereinafter referred to as a single-track inlet conveyor), which can be driven in a first direction 16 and can, for example, convey containers transported on its transport surface in the first direction.

[0088] Parallel to the single-lane inlet conveyor 2, a first group 8 of several parallel first conveyors 3, 4, 5, 6, 7 is provided, each of which can be driven in the first direction 16. Containers can be conveyed in the first direction 16 on the respective transport surfaces of the first conveyors 3-7.

[0089] Parallel to the first group 8, a second group 14 is provided, consisting of several parallel second conveyors 9, 10, 11, 12, 13, each of which can be driven in a second direction 17. Containers can be conveyed in the second direction 17 on the respective transport surfaces of the second conveyors 9-13. The first and second directions 16, 17 are opposite to each other.

[0090] Above the transport surface of the single-lane infeed conveyor 2 and the transport surfaces of the first and second of the first conveyors 3, 4, a guardrail 26 with five deflectors 27 is arranged. This guardrail 26 transitions above the transport surface at the end of the second of the first conveyors 4 into a concave guardrail 28, which is provided above the transport surfaces at the ends of the second, third, fourth, and fifth of the first conveyors 4-7 and at the beginning of the first to fifth of the second conveyors 9-13. Here, the concave guardrail 28 forms a curve describing an angle of 180°.

[0091] Above the transport surfaces of the first and second groups 8, 14, a straight railing 30 is provided between the first group 8 and the second group 14, designed such that a transition area 31 for containers is present between the first group 8 and the second group 14. "Above the transport surfaces of the first and second groups 8, 14" can mean "between the first group 8 and the second group 14" in this context, "above the transport surface of the last of the first conveyors 7 and the first of the second conveyors 9".

[0092] The transition zone 31, seen along the first or second direction 16, 17, has a length 34, the value of which is greater by a factor of 1.8 to 3 than a value of a conveying width 35, 36 of the first or second group 8, 14.

[0093] Above the transport surfaces of the several parallel secondary conveyors 9-13, a railing 32 with two steps 33 is provided, which leaves the transition area 31 clear for the containers. The straight railing 30 transitions into the railing 32 with the two steps 33.

[0094] Above the transport surfaces of the several parallel first conveyors 3-7, another straight railing 39 is arranged, extending from the single-lane infeed conveyor 2 to the straight railing 32.

[0095] The containers can be discharged from the second group 14 by several parallel second conveyors 9-13 transversely to the second direction 17 in direction 22 to the mass flow conveyor 18. For example, the containers can be discharged from the fifth of the second conveyors 13 transversely to the second direction 17 in direction 22 to the mass flow conveyor 18.

[0096] A discharge area 19 (indicated by hatching), in which the containers can be discharged from the fifth of the second conveyors 13 transversely to the second direction 17 in the direction 22 to the mass flow conveyor 18, has a length 20 that is at least twice as large as a conveying width 21 of the container feeding device 1. The conveying width 21 is composed of the sum of the conveying widths 35, 36 of the single-lane infeed conveyor 2, the first conveyors 3-7 and the second conveyors 9-13.

[0097] The drive speeds of the single-track infeed conveyor 2, the first conveyors 3-7, and the second conveyors 9-13 can be individually controlled by means of a control device (not shown). The mathematical value of the drive speeds from the single-track infeed conveyor 2 to the several parallel first conveyors 3-7 can decrease, while the mathematical value of the drive speeds of the several parallel second conveyors 9-13 can initially increase and then decrease again.

[0098] A mathematical value of the drive speed of the mass flow conveyor 18 in the direction 22 can be the smallest.

[0099] The Figure 2 shows a top view of a schematic view of a second embodiment of a container feeding device 25. In the Figure 2 are elements of the first embodiment of the Figure 1, which also occur in the second embodiment and are designated with the same reference numerals. What has been described with regard to the first embodiment also applies to these elements in the second embodiment; only the transition to the mass flow conveyor 18 from the container feed device 25 differs from that of the container feed device 1.

[0100] In the second embodiment of the container feeding device 25, a further single-track feed conveyor 15 is provided parallel to the second group 14 of several parallel second conveyors 9-13. Several further single-track feed conveyors can also be provided side by side, connected to the second group. The further single-track feed conveyor 15 is driveable in the first direction 16 and is designed to convey containers in the first direction 16, for example, on a transport surface. Containers from the further single-track feed conveyor 15 can be discharged transversely to the first direction 17 in direction 22 to the mass flow conveyor 18. The same applies if several further single-track feed conveyors are provided.

[0101] The additional single-track feed conveyor 15 comprises a feed length section 23 (indicated by hatching) along which the containers can be fed from the additional single-track feed conveyor 15 to the mass flow conveyor 18. The feed length section 23 has a length 24 that is at least twice the conveying width 43 of the container feeding device 25. The same applies if several additional single-track feed conveyors are provided.

[0102] This conveying width 43 is the sum of the conveying widths of the single-track inlet conveyor 2, the first conveyors 3-7, the second conveyors 9-13, and the further single-track feed conveyor 15, or of several further single-track feed conveyors. The conveying widths can be measured perpendicular to the first or second direction.

[0103] The length 24 of the feed length section 23 can be measured along the first or second direction 16, 17. The feed length section 23 extends along part of the transport surface of the further single-lane feed conveyor 15. Since the length 24 of the feed length section 23 is at least twice the conveying width 43 of the container feed device 25, the containers can be discharged to the mass flow conveyor 18 without a high back pressure developing between the containers.

[0104] Above the transport surface at the end of the further single-lane infeed conveyor 15, another concave railing 29 is provided, which includes a 90° curve. The further concave railing 29 transitions into the concave railing 28.

[0105] The further concave railing 29 allows containers that are discharged from the further single-track feed conveyor 15 to the mass flow conveyor 18 to also be discharged well into an area of ​​the mass flow conveyor 18 that is opposite the end of the further single-track feed conveyor 15 (in the illustration the right corner area of ​​the mass flow conveyor 18).

[0106] The Figure 3 shows a side view of the Figure 1Looking in the second direction 17, the transport surfaces of the single-lane infeed conveyor 2, the first conveyors 3-7, and the second conveyors 9-13 are arranged at an inclination. The transport surfaces are arranged coplanarly in a plane 41. The plane 41 forms an angle 37 with a plane 42 perpendicular to the direction of action 38 of gravity. This angle can be in a range of 0.5° to 14° (including range limits), or, for example, an angle of 0.5° to 11°, or, for example, an angle of 0.5° to 8°.

[0107] The railing 26 with the deflectors 27, the concave railing 28, the straight railing 30, the railing 32 with the steps 33 and the further straight railing 39 are also arranged at an angle and enclose an angle with a plane 42 perpendicular to the direction of action 38 of gravity, which can be in a range of 0.5° to 14° (including range limits), or for example an angle of 0.5° to 11°, or for example an angle of 0.5° to 8°.

[0108] The Figure 4 shows a side view of the Figure 2 Looking in the second direction 17, the transport surfaces of the single-track inlet conveyor 2, the first conveyors 3-7, the second conveyors 9-13, and the further single-track feed conveyor 15 are arranged at an incline. If several further single-track feed conveyors are provided, these may also be inclined.

[0109] The transport surfaces are arranged coplanarly in a plane 41. The plane 41 forms an angle 37 with a plane 42 perpendicular to the direction of action 38 of gravity, which can be in a range of 0.5° to 14° (including range limits), or for example an angle of 0.5° to 11°, or for example an angle of 0.5° to 8°.

[0110] The railing 26 with the deflectors 27, the concave railing 28, the straight railing 30, the railing 32 with the steps 33, the further straight railing 39 and the further concave railing 29 are also arranged at an inclination and enclose an angle with a plane 42 perpendicular to the direction of action 38 of gravity, which can be in a range of 0.5° to 14° (including range limits), or for example an angle of 0.5° to 11°, or for example an angle of 0.5° to 8°.

[0111] The Figure 5shows a top view of a schematic view of the second embodiment of the container feeding device 25 in which a distribution of containers 40 at a given time is shown.

[0112] It can be seen how containers 40, coming from the single-lane infeed conveyor 2, are distributed by the deflectors 27 onto the several first conveyors 3-7. In the transition area 31, the containers 40 move from the first group 8 to the second group 14. Due to the length 34 of the transition area 31, which is greater by a factor of 1.8 to 3 than the conveyor width 35, 36 of the first group 8 or the second group 14, the containers can be transported loosely. This is evident from the gaps between the containers 40.

[0113] By means of the railing 32 with the steps 33 the containers 40 can be guided without pressure from the several parallel second conveyors 9-13 to the further single-lane feed conveyor 15 and to the mass flow conveyor 18.

[0114] Since the additional single-track feed conveyor 15 moves in the first direction 16, i.e., in the original feed direction of the single-track feed conveyor 2, the distribution and discharge of the containers 40 to the mass flow conveyor 18 can be improved. Containers 40 discharged from the additional single-track feed conveyor 15 to the mass flow conveyor 18 can also be effectively discharged into the area of ​​the mass flow conveyor 18 that is opposite the end of the additional single-track feed conveyor 15.

[0115] The Figure 6Figure 1 shows an oblique view of a thermal treatment device 43 with two treatment decks 44, 45 and two container feed devices 1, 25, which are horizontally oriented. The container feed devices 1, 25 can correspond to the first or the second embodiment. The two treatment decks 44, 45 and the two container feed devices 1, 25 are arranged one above the other in the direction of gravity.

[0116] Containers to be thermally treated in the thermal treatment device 43 can be transported by means of a transport device 46. The transport device 46 is, for example, designed as a single track. In order to supply containers to each of the two superimposed container feed devices 1, 25, a dividing device 47 is provided, which can divide the container flow into a first and a second portion. By means of a first transport device 48, the containers of the first treatment device 1, 25 (in the Figure 6 the lower treatment device) and by means of a second transport device 49 the containers of the second treatment device 1, 25 (in the Figure 6 the upper treatment device).

[0117] The Figure 7Figure 1 shows an oblique view of a thermal treatment device 43 with two treatment decks 44, 45 and two container feeding devices 1, 25, which are inclined. Apart from the angle 50, which is enclosed by a plane in which the transport surfaces of the container feeding devices are arranged coplanarly and a plane perpendicular to the direction of gravity, the dimensions shown in the figure correspond to the Figure 7 shown elements which the Figure 6 The angle 50 can lie in a range of 0.5° to 14°.

Claims

1. Thermal treatment device (43), such as a pasteuriser, cooler or heater, having at least one container feed device (1, 25) for feeding containers (40) each to one mass flow conveyor (18) comprised by the thermal treatment device (43), wherein the mass flow conveyor (18) adjoins the at least one container feed device (1, 25), and wherein the container feed device (1) comprises: an at least one-track infeed conveyor (2) which is drivable in a first direction (16) and is designed to convey containers in the first direction (16), characterised in that the container feed device (1) comprises: a first group (8) of a plurality of parallel first conveyors (3, 4, 5, 6, 7) which are arranged so as to be parallel and adjoining the at least one-track infeed conveyor (2) and which are drivable in the first direction (16) and are designed to convey containers (40) in the first direction (16), a second group (14) of a plurality of parallel second conveyors (9, 10, 11, 12, 13) which are arranged so as to be parallel and adjoining the first group (8) of a plurality of parallel first conveyors (3-7) and which are driveable in a second direction (17) and are designed to convey containers (40) in the second direction (17) which is counter to the first direction (16), wherein the containers (40) are transferable transversely to the second direction (17) from the second group (14) of a plurality of parallel second conveyors (9-13) in direction (22) to a mass flow conveyor (18), wherein above a transport surface of the at least one-track infeed conveyor (2) and above at least some of the transport surfaces of the plurality of parallel first conveyors (3-7), a rail (26) with deflectors (27) is provided, wherein at the end of at least some of the plurality of parallel first conveyors (3-7) and at the beginning of at least some of the plurality of parallel second conveyors (9-13), above the transport surfaces, a concavely designed rail (28) is provided, wherein the rail (26) with the deflectors (27) passes over into the concavely designed rail (28).

2. The Thermal treatment device (43) according to claim 1, wherein a transfer region (19), in which the containers of the second group (14) of a plurality of parallel second conveyors (9-13) are transferable transversely to the second direction (17) in the direction (22) to a mass flow conveyor (18), has a length (20) which is at least twice as large as a conveying width (21) of the container feed device (1).

3. The thermal treatment device (43) according to claim 1 or 2, wherein a further one-track inlet conveyor (15) is provided so as to be parallel and adjoining the second group (14) of a plurality of parallel second conveyors (9-13), or a plurality of further one-track inlet conveyors is provided, wherein the further one-track inlet conveyor (15) or the plurality of further one-track inlet conveyors are driveable in the first direction (16) and is / are designed to convey containers (40) in the first direction (16), wherein, for example, the further one-track inlet conveyor (15) or the plurality of further one-track inlet conveyors comprise(s) a feed length region (23) along which containers (40) are supplyable from the further one-track inlet conveyor (15) or the plurality of further one-track inlet conveyors to the mass flow conveyor (18), wherein the feed length region (23) has a length (24) that is at least twice as large as a conveying width (43) of the container feed device (25).

4. The thermal treatment device (43) according to one of claims 1 to 3, wherein the concavely designed rail (28) comprises a curve that describes an angle lying within a range of angles of 165° to 195°, wherein, for example, above a transport surface at the end of the further one-track inlet conveyor (15), a further concave rail (29) is provided, wherein, for example, the further concavely designed rail (29) passes over into the concavely designed rail (28), wherein, for example, the further concave rail (29) comprises a curve which describes an angle that is within a range of angles of 75° to 105°.

5. The thermal treatment device (43) according to one of claims 1 to 4, wherein above the transport surfaces between the first group (8) and the second group (14), a straight rail (30) is provided which is designed such that a transition region (31) for containers is provided between the first group (8) and the second group (14).

6. The thermal treatment device (43) according to one of claims 1 to 5, wherein above the transport surfaces of the plurality of parallel second conveyors (9-13), a rail (32) with steps (33) is provided, wherein, for example, the rail (32) with the steps (33) leaves the transition region (31) free for containers (40), wherein, for example, the straight rail (30) passes over into the rail (32) with the steps (33).

7. The thermal treatment device (43) according to claim 5 or 6, wherein the transition region (31), seen along the first direction (16) or the second direction (17), has a length (34) whose value is larger by a factor of 1.8 to 3 than a value of a conveying width (35, 36) of the first group (8) or the second group (14).

8. The thermal treatment device (43) according to one of claims 1 to 7, wherein the at least one-track infeed conveyor (2) and / or the plurality of parallel first conveyors (3-7), and / or the plurality of parallel second conveyors (9-13), and / or the further one-track inlet conveyor (15), or the plurality of further one-track inlet conveyors each comprise transport surfaces which are arranged in a coplanar manner in a plane (41), wherein the plane (41) includes an angle (37) of 0.5° to 14° with a plane (42) perpendicular to the direction of action (38) of the force of gravity, or, for example, an angle of 0.5° to 11°, or, for example, an angle of 0.5° to 8°.

9. The thermal treatment device (43) according to one of claims 1 to 8, wherein the container feed device (1, 25) furthermore comprises a control device for controlling drive speeds, wherein, for example, a control is provided wherein the mathematical amount of drive speeds each decreases, starting from the at least one-track infeed conveyor (2) to the plurality of parallel first conveyors (3-7) in the first direction (16), wherein the mathematical amount of drive speeds of the plurality of parallel second conveyors (9-13) initially increases in the second direction (17) and then decreases again, and / or wherein the mathematical amount of a drive speed of the further one-track inlet conveyor (15) in the first direction (16) is the smallest one of the mathematical amounts, or wherein the mathematical amounts of drive speeds of the plurality of further one-track inlet conveyors in the first direction (16) are each smaller than an amount of the drive speed of the slowest one of the plurality of parallel second conveyors (9-13).

10. The thermal treatment device (43) according to one of claims 1 to 9, wherein the thermal treatment device (43) comprises a treatment deck (44, 45), or wherein the thermal treatment device (43) comprises two or more treatment decks (44, 45) and correspondingly two or more of the container feed devices (1, 25).

11. The thermal treatment device (43) according to one of claims 1 to 10, further comprising a further control device for controlling a speed of the mass flow conveyor (18).

12. The thermal container feed device according to one of claims 1 to 11, wherein exactly one one-track infeed conveyor (2) is provided, or wherein two or more one-track infeed conveyors (2) are provided.

13. Method for operating the thermal treatment device (43) according to one of claims 1 to 12.

14. The method according to claim 13, wherein a control of the container feed device (1, 25) is accomplished by the control device, and / or wherein a control of the mass flow conveyor (18) is accomplished by the further control device, wherein, for example, a grading of the different drive speeds is non-linear with respect to each other, wherein, for example, the gradings are each percental with respect to each other or each amount to a factor.