EP3734208A1 - Heizvorrichtung, bündelungsverpackungsanlage mit einer solchen vorrichtung und verfahren zum zirkulierenlassen des angeheizten luftstroms in dieser vorrichtung - Google Patents

Heizvorrichtung, bündelungsverpackungsanlage mit einer solchen vorrichtung und verfahren zum zirkulierenlassen des angeheizten luftstroms in dieser vorrichtung Download PDF

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Publication number
EP3734208A1
EP3734208A1 EP20172452.3A EP20172452A EP3734208A1 EP 3734208 A1 EP3734208 A1 EP 3734208A1 EP 20172452 A EP20172452 A EP 20172452A EP 3734208 A1 EP3734208 A1 EP 3734208A1
Authority
EP
European Patent Office
Prior art keywords
heating
enclosure
circuit
batches
circulation
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.)
Pending
Application number
EP20172452.3A
Other languages
English (en)
French (fr)
Inventor
François-Régis DE BRUNIER
Grégory CHOPLIN
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.)
Sidel Packing Solutions SAS
Original Assignee
Sidel Packing Solutions SAS
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 Sidel Packing Solutions SAS filed Critical Sidel Packing Solutions SAS
Publication of EP3734208A1 publication Critical patent/EP3734208A1/de
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
    • B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat
    • B65B53/06—Shrinking wrappers, containers, or container covers during or after packaging by heat supplied by gases, e.g. hot-air jets
    • B65B53/063—Tunnels
    • 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
    • F27B9/06—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated
    • F27B9/10—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated heated by hot air or gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
    • F27D7/04—Circulating atmospheres by mechanical means

Definitions

  • Heating device packaging installation by bundling with such a device and method of circulating heated air flow in this device.
  • the present invention falls within the field of product packaging within a line for the production and processing of said products.
  • Such products can be, without limitation, containers, such as bottles, cans, cardboard bricks.
  • Such receptacles can be presented individually or grouped together in boxes, cases, cartons or bundles.
  • the products can receive several different successive treatments, ranging from the manufacture of the container by a plastic injection or stretch-blow molding operation, including filling, capping. and the labeling of individual products, up to the packaging in batches of several grouped products.
  • each batch is formed by grouping, staggered or not, of several products in a matrix arrangement, generally of generally rectangular or rectangular parallelepiped shape.
  • each batch can be maintained below by means of a support forming a bottom, for example a cardboard tray.
  • each batch can be coated, in particular covered with a film in order to hold the products together and to facilitate the handling of such a batch.
  • the invention relates to the packaging by bundling of several products grouped together in batches.
  • Bundling products consists of grouping them into batches and then coating each batch of products with a sheet of a film of heat-shrinkable material. A coated batch then undergoes a heating step so that the sheet conforms to the overall exterior shape of the batch. In short, the sheet of film shrinks under the effect of heat to form a shrinkage ensuring the maintenance of the products grouped in batches.
  • the grouping in batches, the coating and the heating are carried out by means of a dedicated installation of the shrink-wrapper type, through several successive stations.
  • heating of an asphalt batch is carried out by passing through the heating device; like an oven, tunnel type.
  • Each batch of products is transported on the upper face of one or more conveyors, from the inlet to the outlet of said oven.
  • One and the same oven can comprise several distinct sections, butted one after the other, forming the interior of the enclosure of said heating device. Each section confers dedicated heating parameters to the batches passing through said furnace.
  • the heating is carried out by a heating means ensuring a circulation of heated air flow towards the interior of the enclosure of said furnace.
  • the heating means can comprise several heating modules, each heating module being specific to each section.
  • the hot air is sent to the conveyor and makes it possible to heat the underside and the lower edges of the batches transported on the conveyor, essentially targeting the part of the film sheet located under the batch of products, in particular to carry out a welding of the ends of the coating sheet which, at the time of the preliminary coating, are superimposed and pressed one against the other under the weight of the products of the batch.
  • the hot air is sent to the interior volume of the enclosure and makes it possible to heat the coated batch, with a view to raising the temperature of the sheet of the film so that a shrinkage can be applied. in contact with the products, by deforming the sheet so that it matches part of the contours of said products.
  • the heating means comprises at least one heating module provided with a heating block having the function of heating the air which passes through it.
  • a heating block is provided with electric resistances or gas burners.
  • a heating module also comprises a means for circulating the air heated by said heating block.
  • Such circulation means can be in the form of a turbine or a fan.
  • a flow of heated air circulates towards at least one circuit, possibly dividing, or several circuits opening out, on the one hand, at the level of the conveyor of its section and, on the other hand, inside the volume of the enclosure of this same section.
  • the expulsion of the heated air at the outlet of the corresponding circuit takes place through ramps.
  • at least two ramps are arranged vertically and parallel to each other, extending longitudinally in the direction of movement of the batches, over a length portion of each section. Two ramps are spaced transversely at an interval, on the one hand, allowing the passage of the lots between said two ramps and, on the other hand, at a determined distance from the side walls of the lots, in order to ensure heating and cooling. narrowed.
  • a ramp can be formed by the longitudinal internal wall of the oven.
  • a ramp may also consist of an independent element, then having a generally rectangular or trapezoidal parallelepiped shape, hollow and closed. Each ramp is connected to the outlet of the circuit through which the heated air flow arrives and has a wall with orifices through which the hot air is expelled and directed towards the interior of the volume of its section.
  • the air flow is circulated in a loop, the air from the enclosure being sucked by the circulation means to pass through a block of heating before being sent to the circuit, to emerge via the ramps and the conveyor inside said enclosure.
  • a problem lies in optimizing the energy consumption of such a heating device, in particular when it is not in production mode, for example during a shutdown of the power line. production, for a change of format or due to an event occurring at another station of said line. It is then no longer necessary to maintain the setpoint temperature required by the process, which can be reduced to save energy during the shutdown period.
  • the conveyor circulating between the interior and the exterior of the enclosure of the oven, induces substantial heat dissipation. Indeed, during a production stoppage, the conveyor is kept in motion while the temperature inside the chamber decreases, so as not to degrade said conveyor, then continuing to dissipate calories to the outside. of the enclosure.
  • an existing solution consists in closing off the corresponding circuit ensuring the sending of the air flow to the conveyor, sending the entire flow to the circuit opening directly inside the enclosure to ramp levels.
  • the object of the invention is to alleviate the drawbacks of the state of the art by proposing to recycle a flow of heated air directly at the outlet of the heating means, to redirect it towards its inlet, through a recycling circuit. dedicated.
  • Such a heating device is characterized in that it comprises at least one recycling circuit connecting at least said outlet to said one inlet of said heating means.
  • said recycling circuit can connect the outlet of a heating unit to said air intake of a means for circulating said heating means.
  • said furnace may be provided with at least a first section and a second section forming said enclosure; said conveyor passes through said first section and second section; said heating means comprises a first heating module dedicated to said first section and a second heating module dedicated to said second section; and said recycling circuit connects the output of the heating unit of the first heating module to the input of the circulation means of said second heating module.
  • a circulation means may comprise at least one turbine provided with an air intake and that said recycling circuit opens out at said air intake.
  • the heating device may include means for controlled shut-offs of said circuit and of said recycling circuit.
  • Said recycling circuit may comprise a portion extending inside the enclosure of said furnace, said portion being provided with a volume formed inside the enclosure by at least one internal wall.
  • the invention also relates to a method for circulating a heated air flow, very particularly suited to the use of such a heating device.
  • the invention makes it possible to redirect all or part of the heated air flow at the outlet of a heating module of a heating means, to effect a limited circulation at said heating means, see in the upper part of the enclosure through an air intake farthest from the conveyor.
  • heat losses are found to be all the more limited at the level of said conveyor, but also inside the enclosure of such an oven.
  • the invention makes it possible in particular to preserve the components of the heating means, eliminating a risk of deterioration.
  • Such an installation is characterized in that said heating station comprises a device for heating batches of coated products according to the invention.
  • the invention directly limits heat loss at the interior of the enclosure, in particular of the conveyor.
  • the present invention relates to the heating of coated products.
  • Such products can be, without limitation, containers, such as bottles, cans, cardboard bricks.
  • Such receptacles can be presented individually or grouped together in boxes, cases, cartons or bundles.
  • the products can receive several successive different treatments, ranging from the manufacture of the container by a plastic injection or stretch-blow molding operation, including filling, capping and labeling. from individual products, to packaging in batches of several grouped products.
  • each batch is formed by grouping, staggered or not, of several products in a matrix arrangement, generally of generally rectangular or rectangular parallelepiped shape.
  • each batch can be maintained below by means of a support forming a bottom, for example a cardboard tray.
  • each batch can be coated, in particular covered with a film in order to hold the products together and to facilitate the handling of such a batch.
  • Such a grouping can be carried out by bundling the products consisting of grouping them into batches and then coating each batch of products by means of a sheet of a film of heat-shrinkable material.
  • a coated batch then undergoes a heating step so that the sheet conforms to the overall exterior shape of the batch.
  • the sheet of film shrinks under the effect of heat to form a shrinkage ensuring the maintenance of the products grouped in batches.
  • the invention relates most particularly to the packaging by bundling of several products grouped together in batches.
  • the grouping in batches, the coating and the heating are carried out by means of a packaging installation by dedicated bundling type bundle, through several successive stations.
  • such a packaging installation comprises successively at least one grouping station for said products in batches, one coating station for each said batches by a sheet of heat-shrinkable film, a heating station for each sheet coating each batch, a cooling station for the sheet of each batch.
  • a heating station comprising a device 1 for heating batches of coated products according to the invention, as described below.
  • the heating of a coated batch of products is carried out by passing through said heating device 1.
  • said heating device 1 comprises at least one oven with an interior enclosure.
  • Such an oven may be of the tunnel type, its enclosure being partially closed, delimited by external walls, with passages at the ends to supply it with batches of coated products to be heated and to extract the batches of products once treated.
  • the oven comprises at least one section 100, then forming only the enclosure of said oven.
  • a simplified example of a single section oven can be seen on the figure 1 .
  • an oven comprises several sections 100, 101, butted one after the other, ensuring continuity of the interior volume of said oven.
  • the sections 100,101 are generally aligned, forming the longitudinal enclosure of said oven.
  • a simplified example of a two-section oven is shown in figure 2 .
  • the heating device 1 comprises at least one conveyor 2 passing through said enclosure.
  • a single conveyor 2 extends through said enclosure, from and to the outside, upstream as well as downstream with respect to the direction of circulation of said batches along said heating device 1: a single conveyor 2 therefore transports batches of products to enter the oven, pass through its enclosure and exit after treatment.
  • the heating device 1 comprises a heating means 3 of said enclosure.
  • a heating means 3 ensures the heating and the circulation of air flow, so that it comes into contact with the batches of coated products to be treated.
  • a heating means 3 comprises at least one heating module 30.
  • a heating means 3 can comprise several heating modules 30, 31, in particular for the same section 100, making it possible to obtain different heat treatment conditions between several portions of said section.
  • a heating means 3 comprises a heating module 30 for a first section 100 and another heating module 31 for a second section 101, as visible on the figure. figure 2 , making it possible to obtain different processing conditions in each of said sections 100,101.
  • Said heating means 3 comprises at least one input 4 and at least one output 5.
  • an input 40,41 and an output 50,51 are dedicated to each of them.
  • each heating module 30, 31 comprises a heating block 6.
  • a heating block 6 can include electrical resistances or at least one gas burner, heating the air which passes through each heating block 6.
  • Each module 30, 31 comprises at least one circuit 7 connecting at output 5, 50, 51 said heating unit 6 and opening inside said enclosure.
  • each module 30, 31 comprises at least two circuits 70, 71.
  • At least a first circuit 70 channels the heated air flow to at least one ramp 8, while at least one other circuit 71 channels the heated air flow to the conveyor 2.
  • a ramp 8 can be formed by the longitudinal internal wall of the oven.
  • a ramp 8 can also consist of an independent element, then having a generally rectangular or trapezoidal parallelepiped shape, hollow and closed.
  • Each ramp 8 is connected at output 5, 50, 51 to circuit 7, through which the heated air flow arrives.
  • a ramp 8 may have a perforated wall with openings, in particular in the form of orifices through which the hot air is expelled and directed towards the interior of the volume of the enclosure.
  • At least two ramps 8 are arranged vertically and parallel to each other, extending longitudinally in the direction of movement of the batches, over a length portion of the enclosure.
  • Two ramps 8 are spaced transversely at an interval, on the one hand, allowing the passage of the lots between said two ramps 8 and, on the other hand, at a determined distance from the side walls of the lots, in order to ensure heating. and the formation of the constriction.
  • the other circuit 71 it can open into a space provided under the conveyor 2 and open at least in the upper part.
  • Said conveyor 2 is provided with a perforation, allowing the air flow to pass through it and to be expelled in the lower part of the enclosure.
  • dotted arrows model an example of circulation of the heated air flow to the circuits 70, 71.
  • a distributor 9 can be arranged at the outlet 5,50,51 of the heating unit 6, in order to connect it and direct the flow of heated air towards one and / either of the circuits 70, 71.
  • Each circuit 7, 70, 71 may comprise portions provided with pipes, sheaths or conduits, hermetically connected to the various elements of the heating device 1.
  • Each heating module 30, 31 comprises at least one means 10 for circulating a flow of air heated by said heating unit 6 towards said circuit 7, in particular towards one and / or the other of the circuits 70 , 71.
  • Such circulating means 10 may comprise at least one turbine or at least one fan.
  • Said circulation means 10 comprises at least one air intake 11.
  • an air intake 11 is connected to the interior of the enclosure.
  • an air intake 11 comprises a suction mouth, open towards the interior of the enclosure, so as to take the air therein so that it is circulated to the corresponding heating unit 6.
  • an inlet 4,40,41 may correspond to a suction mouth of the heating means 3 and of one of its heating modules 30, 31, opening out inside the enclosure.
  • the air flow is circulated in a loop, the air from the enclosure being sucked towards the means.
  • Such a circulation loop takes into consideration the internal volume of the enclosure of the oven, potentially open to the passages necessary for conveying the batches of products to be treated.
  • the various elements can be butted together or connected by pipes, in a hermetic manner, in order to allow such circulation in a loop.
  • the invention provides for recycling the flow of air heated by the heating device 1, in particular its heating means 3.
  • said heating device 1 comprises at least one recycling circuit 12 connecting at least said output 5,50,51 to said one input 4,40,41 of said heating means 3, in particular heating modules 30 , 31 correspondents.
  • the recycling circuit 12 extends between one of the outlets 5,50,51 and one of the inlets 4,40,41 to limit the flow of air sent to the circuits 7,70 , 71 and channel it by limiting the circulation of air flows inside the enclosure, preferably at the level of the conveyor 2. It is by making a connection as closely as possible between the inputs 4,40,41 and outputs 5,50,51 of the heating device 1, that the recycling makes it possible to avoid heat losses towards the bottom of the enclosure keeping the heated air flow circulating in the upper part around the heating means 3 and the heating modules 30, 31.
  • said recycling circuit 12 can connect the output 5 of a heating unit 6 to said air inlet 11 of a circulation means 10 of said heating means 3.
  • the recycling circuit 12 can comprise at least one pipe, connecting at one end the inlet 4,40,41 and at the opposite end the outlet 5,50,51, directly or not.
  • the recycling circuit 12 can connect the outlet of a heating unit 6 to the air discharge at the outlet of the circulation means 10, namely the outlet of the turbine, in particular at the location in conjunction with the corresponding heating block 6.
  • a circulation means 10 can comprise at least one turbine which is provided with an air intake. Consequently, the recycling circuit 12 can open out at said air intake. In this configuration, the recycling circuit 12 connects the outlet 5,50,51 to the inlet 4,40,41 by the air intake of the turbine, and not by the air intake 11.
  • the recycling circuit 12 can connect the output 5, 50, 51 via the corresponding distributor 9.
  • said oven is provided with at least a first section 100 and a second section 101 forming said enclosure.
  • Said conveyor 2 passes through said first section 100 and second section 101.
  • said heating means 3 comprises a first heating module 30 dedicated to said first section 100 and a second heating module 31 dedicated to said second section 101.
  • said recycling circuit 12 can connect the output 50 of the heating unit 6 of the first heating module 30 to the input 41 of the circulation means 10 of said second heating module 31.
  • the recycling is carried out within the heating means 3, between its heating modules 30, 31. The heated air flow is then no longer sent to the first section 100, but redirected to the second section 101.
  • said recycling circuit 12 may comprise a portion extending inside the enclosure of said oven. Said portion is provided with a volume 13 formed inside the enclosure by at least one internal wall 14. Preferably, said internal wall 14 is provided in the upper part of the enclosure, forming a false ceiling.
  • the internal wall 14 may be perforated, allowing air circulation with the enclosure, in particular in the form of suction from the enclosure.
  • the heating means 3 can be located inside and / or outside the volume 13, namely elements constituting each heating module 30, 31 can be placed inside and / or or outside said volume 13.
  • the heating means 3 is disposed outside the volume13.
  • the internal wall 14 then forms a portion of the recycling circuit 12.
  • the heating means 3 is disposed inside the volume 13.
  • the recycling circuit 12 is then essentially delimited by said volume 13, the air circulating inside said volume 13 and around the heating means 3.
  • the invention is aimed at recycling the air flow heated by the heating means 3.
  • the heating device 1 can comprise means for controlled blocking of said circuit 7 and of said recycling circuit 12.
  • the controlled means of blocking make it possible to direct the air flow towards the circuit or circuits 7.70 , 71 and / or to the recycling circuit 12.
  • the controlled shut-off means may comprise shutters 15,16 corresponding to the connections with the circuits 70, 71 and at least one recycling shutter 17 corresponding to the connection with the recycling circuit 12.
  • the shutters 15,16 and the recycling shutter 17 can be positioned at the junctions between, on the one hand, the distributor 9 and, on the other hand, the circuits 70, 71 and the recycling circuit 12.
  • the shutters 15,16 and the recycling shutter 17 are located at the corresponding inputs of the circuits 70,71 and of the recycling circuit 12, said inputs being connected to said distributor 9.
  • the shutters 15,16 and the shutter 17 can be of any type, in particular valves, the position of which completely or partially blocks each of the circuits 70, 71 and recycling circuit 12 corresponding.
  • control of the positions of the shutters 15, 16 and of the recycling shutter 17 is carried out by suitable means, in particular a dedicated control unit.
  • a control unit can in particular comprise sensors, for example of pressure and / or temperature, positioned at different locations on the heater 1.
  • the invention also relates to a process for circulating flow in a heating device 1, as described above.
  • the opening of the recycling circuit 12 is checked.
  • the opening of the recycling circuit 12 makes it possible to reduce the flow of air sent to the circuit 7, in particular to one and the other. another of the circuits 70, 71 if they are open, or even completely towards the recycling circuit 12 if they are completely closed.
  • the heating device 1 advantageously comprises a circuit 12 for recycling the heated air flow connecting at least one outlet 5, 50, 51 of the heating means 3 to at least one inlet 4.40, 41 of said heating means 3.
  • Such a circuit 12 is made in such a way as to be able to significantly restrict, or even prevent, the circulation of heated air in the enclosure of the oven, in particular in the lower part of the oven, in which the conveyor 2 is located.
  • the recycling circuit 12 is preferably isolated, at least partially, from the enclosure of the oven.
  • the recycling circuit 12 is separate from at least one circuit 7, 70, 71 intended to supply the enclosure of the oven with hot air under conditions favorable to the shrinkage of the coating around some products.
  • the hot air which is admitted at the end of the recycling circuit, at an inlet 4,40,41 of the heating means 3 can come from the enclosure of the oven only partially, or even not from the all. In other words, the air flow brought to the level of an inlet 4,40,41 of the heating means 3 through the recycling circuit 12 cannot come solely from the enclosure of the oven.
  • the recycling circuit 12 comprises at least one wall 14 making it possible to isolate the circuit 12 from the internal enclosure of the furnace supplied with hot air by the circuit 7,70,71 as shown for example in figures 3 and 4 .
  • the recycling circuit 12 can also be closed by means of a pipe extending from at least one outlet 5,50,51 to at least one inlet 4,40,41 as shown for example on figure 1 .
  • the invention makes it possible to recycle the air flow, preferably in the upper part of the enclosure of the heating device 1, limiting the heat exchanges in the lower part, especially at the level of the conveyor 2.
  • This recycling 12 makes it possible to '' save energy by limiting heat loss, while optimizing the operation of the heating device1, as well as of the conditioning system.
  • the invention may find a preferential application, but in no way limiting, in a specific mode of operation of the packaging installation by bundling, for example a degraded mode of operation of production or a start / stop, or in particular a standby mode. Consequently, the invention makes it possible in particular to accelerate and facilitate a return to production.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Environmental & Geological Engineering (AREA)
  • Drying Of Solid Materials (AREA)
  • Basic Packing Technique (AREA)
EP20172452.3A 2019-04-30 2020-04-30 Heizvorrichtung, bündelungsverpackungsanlage mit einer solchen vorrichtung und verfahren zum zirkulierenlassen des angeheizten luftstroms in dieser vorrichtung Pending EP3734208A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1904535A FR3095689B1 (fr) 2019-04-30 2019-04-30 Dispositif de chauffage, installation de conditionnement par fardelage avec un tel dispositif et procédé de mise en circulation de flux d'air chauffé dans ce dispositif.

Publications (1)

Publication Number Publication Date
EP3734208A1 true EP3734208A1 (de) 2020-11-04

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20172452.3A Pending EP3734208A1 (de) 2019-04-30 2020-04-30 Heizvorrichtung, bündelungsverpackungsanlage mit einer solchen vorrichtung und verfahren zum zirkulierenlassen des angeheizten luftstroms in dieser vorrichtung

Country Status (2)

Country Link
EP (1) EP3734208A1 (de)
FR (1) FR3095689B1 (de)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1062349A (en) * 1965-03-17 1967-03-22 Ici Ltd Apparatus and method for packaging articles in heat shrinkable wrappers
DE1262869B (de) * 1962-05-29 1968-03-07 Weldotron Corp Heisslufttunnel
US3668817A (en) * 1966-11-18 1972-06-13 Grace W R & Co Shrink tunnel and method of shrinking film on articles
US3897671A (en) * 1973-08-31 1975-08-05 Comptex Apparatus and method for covering a load on a pallet
EP1288129A2 (de) * 2001-08-29 2003-03-05 SMI S.p.A. Tunnelofen zur Herstellung von Heissschrumpffolienpackungen und damit durchgeführtes Verpackungsverfahren
FR2859704A1 (fr) * 2003-09-11 2005-03-18 Cetec Ind Conditionnement Four de retractation destine plus particulierement a une fardeleuse
JP2010157633A (ja) * 2008-12-27 2010-07-15 Green Technologies Corp リフロー装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1262869B (de) * 1962-05-29 1968-03-07 Weldotron Corp Heisslufttunnel
GB1062349A (en) * 1965-03-17 1967-03-22 Ici Ltd Apparatus and method for packaging articles in heat shrinkable wrappers
US3668817A (en) * 1966-11-18 1972-06-13 Grace W R & Co Shrink tunnel and method of shrinking film on articles
US3897671A (en) * 1973-08-31 1975-08-05 Comptex Apparatus and method for covering a load on a pallet
EP1288129A2 (de) * 2001-08-29 2003-03-05 SMI S.p.A. Tunnelofen zur Herstellung von Heissschrumpffolienpackungen und damit durchgeführtes Verpackungsverfahren
FR2859704A1 (fr) * 2003-09-11 2005-03-18 Cetec Ind Conditionnement Four de retractation destine plus particulierement a une fardeleuse
JP2010157633A (ja) * 2008-12-27 2010-07-15 Green Technologies Corp リフロー装置

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Publication number Publication date
FR3095689B1 (fr) 2024-01-12
FR3095689A1 (fr) 2020-11-06

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