EP4169873A1 - Installation de traitement de récipients et son procédé de fonctionnement - Google Patents

Installation de traitement de récipients et son procédé de fonctionnement Download PDF

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Publication number
EP4169873A1
EP4169873A1 EP22201088.6A EP22201088A EP4169873A1 EP 4169873 A1 EP4169873 A1 EP 4169873A1 EP 22201088 A EP22201088 A EP 22201088A EP 4169873 A1 EP4169873 A1 EP 4169873A1
Authority
EP
European Patent Office
Prior art keywords
compressed air
vacuum
containers
ejector
operated device
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
EP22201088.6A
Other languages
German (de)
English (en)
Inventor
Holger Mueller
Florian HABERSETZER
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.)
Krones AG
Original Assignee
Krones AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Krones AG filed Critical Krones AG
Publication of EP4169873A1 publication Critical patent/EP4169873A1/fr
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
    • B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
    • B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
    • 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
    • B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B3/02—Machines characterised by the incorporation of means for making the containers or receptacles
    • 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
    • B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B3/02—Machines characterised by the incorporation of means for making the containers or receptacles
    • B65B3/022—Making containers by moulding of a thermoplastic material
    • 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
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/04—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
    • B65B31/044—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzles being combined with a filling device
    • 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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/42—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation
    • B65B43/50—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation using rotary tables or turrets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
    • B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
    • B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
    • B67C3/22—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
    • B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
    • B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
    • B67C3/22—Details
    • B67C2003/227—Additional apparatus related to blow-moulding of the containers, e.g. a complete production line forming filled containers from preforms

Definitions

  • the invention relates to a container treatment plant and a method for operating a container treatment plant.
  • Containers can be filled with a filling product in a filling device of a container treatment plant.
  • the containers can be evacuated before filling, especially when filling products that are sensitive to oxygen, such as beer and wine. Depending on the requirement for a residual oxygen content in the container, the evacuation can also take place several times in succession.
  • a vacuum pump is conventionally used to provide the vacuum or negative pressure.
  • Vacuum pumps have a not inconsiderable energy requirement. They therefore make a major contribution to the overall energy requirement of the filling device. Exemplary engine outputs for small vacuum pumps for simple evacuation can start in the range of around 7 kW. Exemplary engine outputs for large vacuum pumps for triple evacuation can be around 50 kW and more.
  • the EP 1 081091 A1 discloses a filling machine for filling beverages into containers, with a rotor revolving around a vertical axis, on the circumference of which filling elements are arranged spaced apart.
  • the filling elements are each designed for controlled filling of the beverage through an outlet.
  • Each outlet can be supplied with a vacuum by a device which is arranged to run along on the rotor, is connected to compressed air and is designed to work according to the compressed air ejector principle.
  • the invention is based on the object of creating an improved container treatment plant or an improved method for operating a container treatment plant, preferably with a reduced energy requirement.
  • An energy requirement for a vacuum application, preferably for evacuating the containers, can preferably be reduced.
  • the container treatment system for treating containers (e.g. for producing, cleaning, testing, filling, closing, labelling, printing and/or packaging containers for preferably liquid media, preferably beverages or liquid foods).
  • the container treatment system has a compressed air source, preferably a compressed air compressor or a compressed air tank.
  • the container treatment facility includes a compressed air powered device (e.g., a container treatment machine and/or for treating a container) connected to the compressed air source for receiving compressed air.
  • the container treatment system has a vacuum-operated device (e.g. a container treatment machine and/or for treating a container).
  • the container treatment system has an ejector which is connected to the compressed air-operated device for receiving compressed air (e.g. as a motive medium) and to the vacuum-operated device for sucking in air (e.g. as a suction medium).
  • the container treatment system advantageously enables improved energy efficiency.
  • Compressed air is not simply released into the atmosphere after use in the compressed air operated device. Instead, the compressed air can be used by means of the ejector to suck in air in order to operate the vacuum-operated device of the container treatment system.
  • the ejector can make it possible to dispense with a separate vacuum pump for the vacuum-operated device.
  • the ejector may allow a vacuum pump to be assisted for the vacuum operated device.
  • the ejector can be used without the need for automation.
  • the ejector can be designed as a purely mechanical component.
  • the container treatment system further includes a vacuum pump, which is preferably disposed in fluid communication between the vacuum operated device and the ejector.
  • the ejector can make it possible for the vacuum pump for the vacuum-operated device to require less energy to operate, since it has to work permanently against a lower back pressure, for example.
  • the ejector can also allow the vacuum pump to be smaller than usual in terms of dimensions and/or maximum power.
  • the power requirement of the vacuum pump also has a direct impact on the required Cooling energy of the vacuum pump. This means that the necessary cooling energy can also be reduced with reduced power consumption.
  • the support provided by the ejector can also set an upper performance limit for air extraction. Since the ejector can also be arranged downstream of the vacuum pump, it is also not necessary to integrate the ejector into a possibly existing cleaning circuit of the vacuum-operated device.
  • the vacuum pump is designed as a liquid ring vacuum pump.
  • the ejector is connected to the vacuum pump in such a way that a back pressure of the vacuum pump can be reduced by operating the ejector, preferably to reduce an energy requirement of the vacuum pump.
  • the container treatment system also has a backflow preventer which is arranged in a fluid connection between the vacuum-operated device and the ejector, preferably downstream of a vacuum pump.
  • the container treatment system also has a filling device, preferably a filler carousel, for filling the containers, with the filling device having the compressed-air-operated device and/or the vacuum-operated device. It can thus advantageously be made possible that a total energy requirement of the filling device can be reduced.
  • the compressed air-operated device has a compressed air-operated valve device, preferably a filling valve device, for filling the containers with a filling medium.
  • a compressed air-operated valve device preferably a filling valve device
  • the use of the used compressed air of the filling valve device allows a comparatively large flow of compressed air as a driving medium for the ejector.
  • up to around 300 Nm3/h of compressed air exhaust air with a pressure of 6 bar can be used for the ejector with a filler carousel with a working air pressure of 7 bar and an output of 100,000 containers per hour .
  • the smaller the container volume to be filled the proportionately more exhaust compressed air is available for the supply to the ejector because, for example, although the evacuation volume decreases, the valve circuits can be independent of the container volume.
  • the compressed air-operated device has a container manufacturing device for manufacturing the containers, preferably a container blowing device for blowing the containers.
  • a container blowing device such as a stretch blow molding machine can operate at a pressure level of between 10 bar and 50 bar, preferably between 20 bar and 40 bar, to blow the containers. This means that a lot of (exhaust) compressed air is also available at a high pressure level for supply to the ejector.
  • the compressed-air-operated device has a packing and/or unpacking device, preferably for primary or secondary packaging for the containers, and/or a labeling device for labeling the containers.
  • the vacuum-operated device has an evacuation device for evacuating the containers, an evacuation device for evacuating a blow mold for blowing the containers, a vacuum reservoir, a vacuum handling device, preferably for handling the containers or container labels for the containers, a packing and/or unpacking device, preferably for primary or secondary packaging for the containers, and/or a vacuum pump of a mixer for degassing products for the containers.
  • the ejector can thus be used in a variety of ways to support a wide variety of vacuum-operated devices.
  • a combination of a filling valve device (for filling the containers) as a compressed-air-operated device and an evacuation device (for evacuating the containers) as a vacuum-operated device is particularly preferred.
  • the container treatment system further comprises at least one rotary distributor, which is arranged in a fluid connection between the vacuum-operated device and the ejector and/or in a fluid connection between the compressed air-operated device and the ejector.
  • the container treatment system also has a fluid line (e.g. with a valve for adjusting a flow, for releasing or for blocking the fluid line) which connects the compressed air source and the ejector directly and/or bypassing the compressed air-operated device .
  • a fluid line e.g. with a valve for adjusting a flow, for releasing or for blocking the fluid line
  • this allows a vacuum pump with a lower maximum output (and possibly smaller dimensions) to be selected, since it is possible to use the ejector to start up the container treatment system when there is no or hardly any compressed air from the compressed air operated device to be operated with (“fresh") compressed air from the compressed air source.
  • the The ejector can then, for example, only be operated with compressed air from the compressed air-operated device, and the fluid line can be blocked, e.g. B. by means of a valve.
  • the ejector is single-stage or multi-stage.
  • the single-stage ejector can advantageously have a comparatively simple and therefore cost-effective design.
  • the multi-stage ejector can allow a very low counter-pressure for the vacuum pump that may be present or generally provide a large negative pressure for sucking in air from the device operated under negative pressure.
  • a further aspect relates to a method for operating a container treatment system, preferably as disclosed herein.
  • the method includes operating a compressed air operated device of the container treatment system by supplying compressed air to the compressed air operated device.
  • the method includes directing the compressed air that operated the compressed air powered device to an ejector (eg, as the motive medium of the ejector).
  • the method includes operating a vacuum-operated device of the container treatment system by sucking air from the vacuum-operated device to the ejector (e.g. as suction medium of the ejector).
  • the method may further include supplying pressurized air to the pressurized air powered device from a pressurized air source, preferably an air compressor or a pressurized air tank.
  • a pressurized air source preferably an air compressor or a pressurized air tank.
  • the suction of the air supports a vacuum pump z. B. upstream of the ejector, preferably to reduce a back pressure of the vacuum pump and / or to reduce an energy requirement of the vacuum pump.
  • the method also includes conducting compressed air from a compressed air source, preferably a compressed air compressor or compressed air tank, directly and/or bypassing the compressed air-operated device to the ejector, preferably when the container treatment system is started up.
  • a compressed air source preferably a compressed air compressor or compressed air tank
  • the compressed air-operated device is operated by means of the compressed air for switching valve positions, for switching filling valve positions for filling containers and/or for blowing containers out of container blanks.
  • the vacuum-operated device is operated by means of the compressed air for evacuating containers, for evacuating blow molds, for storing a vacuum and/or for handling, preferably containers and/or container labels.
  • fluid connection can refer to a fluid line, e.g. B. a pipe or hose related.
  • the figure 1 shows a container treatment plant 10 for treating containers.
  • the container treatment facility 10 can manufacture, clean, inspect, fill, seal, label, print, group, and/or pack the containers.
  • the container treatment system 10 can, for example, have a container manufacturing device (e.g. container blowing device), a container cleaning device (e.g. rinsing device), an inspection device (e.g. camera device, laser scanner or LED scanner), a filling device (e.g. filler carousel or linear filler), a closing device (e.g. closing carousel), a labeling device, a printing device and/or a grouping device and/or a packaging device.
  • a container manufacturing device e.g. container blowing device
  • a container cleaning device e.g. rinsing device
  • an inspection device e.g. camera device, laser scanner or LED scanner
  • a filling device e.g. filler carousel or linear filler
  • a closing device e.g.
  • the containers can be designed as bottles, cans, canisters, cartons, flasks, etc., for example.
  • the containers are preferably used to hold liquid or pasty media.
  • the containers are preferably used to hold drinks or food.
  • the container treatment system 10 has a compressed air source 12 , a compressed air operated device 14 , a vacuum operated device 16 and an ejector 18 .
  • the Container treatment system 10 has a vacuum pump 20, a backflow preventer 22 and/or at least one rotary distributor 24.
  • the compressed air source 12 is designed to provide compressed air.
  • the compressed air can, for example, be provided with a pressure in the single-digit or double-digit bar range.
  • the compressed air source 12 can be designed as a single-stage or multi-stage air compressor.
  • the compressed air source 12 can be designed as a compressed air tank, for example.
  • the compressed air source 12 can have a compressed air outlet 26 for providing the compressed air.
  • the compressed air source 12 can, for example, be driven by a motor.
  • the compressed air operated device 14 is connected to the compressed air source 12 via a fluid line.
  • the compressed air operated device 14 is connected to the ejector 18 via a fluid line.
  • the compressed air powered device 14 may have a compressed air inlet 28 and a compressed air outlet 30 .
  • the compressed air inlet 28 can be connected to the compressed air outlet 26 of the compressed air source 12 via a fluid connection. Compressed air may be directed from the compressed air source 12 from the compressed air outlet 26 to the compressed air inlet 28 of the compressed air powered device 14 .
  • the compressed air inlet 28 can be arranged downstream of the compressed air outlet 26 of the compressed air source 12 .
  • a rotary distributor or a rotary feedthrough 24 can be arranged, e.g. B. when the compressed air operated device 14 in a carousel, z. B. filler carousel, is included and the compressed air source 12 is not, or vice versa.
  • At least one valve for adjusting a flow, releasing and/or blocking the fluid connection can be arranged in the fluid connection between the compressed air outlet 26 of the compressed air source 12 and the compressed air inlet 28 .
  • the compressed air outlet 30 can be connected to the compressed air inlet 28 via a fluid connection.
  • the compressed air outlet 30 can be arranged downstream of the compressed air inlet 28 .
  • the compressed air can exit the compressed air operated device 14 via the compressed air outlet 30 .
  • the compressed air outlet 30 can provide compressed air.
  • the compressed air provided by the compressed air outlet 30 can have a lower pressure than the compressed air received from the compressed air inlet 28 .
  • the compressed air provided by the compressed air outlet 30 can have a pressure in the single-digit or two-digit bar range, for example.
  • the device 14 operated with compressed air can be or have any device of the container treatment system 10 which can be operated with compressed air.
  • the device 14 operated by compressed air is preferably included in a container treatment machine of the container treatment system 10 .
  • the compressed air operated device 14 is a compressed air operated filling valve device for filling containers.
  • the filling valve device can be opened or closed, for example, by means of compressed air.
  • the filling valve device can be connected to a liquid supply, e.g. B. a liquid tank connected.
  • the filling valve device can, for example, be included in a linear filler or a filler carousel.
  • the filling valve device can have at least one filling valve.
  • the filling valve device can have a number of filling valves for filling a number of containers at the same time. For example, a linear filler can have several filling valves in a row next to one another.
  • a filler carousel can have, for example, a plurality of filling valves which are distributed around the circumference of the filler carousel.
  • compressed air can leave the filling valve device, for example, at a pressure of more than 5 bar, preferably around 6 bar.
  • the pneumatically operated device 14 may be or include any other pneumatically operated valve means.
  • the valve device can have one or more valves.
  • the valve device can be opened or closed, for example, by means of compressed air.
  • the device 14 operated by compressed air can be or have, for example, a container manufacturing device for manufacturing containers.
  • the container manufacturing device can, for example, produce containers from preforms or container blanks (preforms) by means of compressed air.
  • the container manufacturing device can preferably be designed as a container blow molding device, preferably a stretch blow molding machine.
  • the container blowing device can blow (up) heated preforms into containers.
  • the containers can be blown into cavities of blow molding stations.
  • the container blow molding device can have at least one blow molding station.
  • the container blow molding device can have a number of blow molding stations for blowing a number of containers at the same time.
  • the container blow molding device can be designed as a linear blow molding device with a number of blow molding stations arranged in a row.
  • the container blow molding device can be designed, for example, as a container blow molding carousel with a plurality of blow molding stations arranged distributed around the circumference of the container blow molding carousel.
  • the compressed air-operated device 14 can be a packing and/or unpacking device, preferably for primary or secondary packaging for the containers exhibit. It is also possible that the device 14 operated by compressed air is or has a labeling device for labeling the containers.
  • the labeling device can be arranged in a block arrangement with a filling device.
  • the containers can be labeled by the labeling device, for example before filling.
  • the containers can be stabilized with compressed air during labeling.
  • the vacuum operated device 16 is connected to the ejector 18 via a fluid line.
  • the vacuum operated device 16 may include an air outlet 32 . Air can be sucked out of or from the vacuum-operated device 16 to the ejector 18 through the air outlet 32 .
  • the vacuum-operated device 16 can be or include any device of the container treatment system 10 that can be operated by extracting air below an ambient pressure.
  • the vacuum-operated device 16 is preferably included in a container treatment machine of the container treatment system 10 .
  • the vacuum-operated device 16 is preferably an evacuation device for evacuating the containers.
  • the evacuation device can evacuate the containers, for example, once or several times before filling.
  • the evacuation device can extract air or gas from the containers.
  • the evacuation device can have a vacuum line and a valve. In an open valve position, the valve can connect the container (or a container opening of the container) to the vacuum line for evacuating the container. In a closed valve position, the valve can separate the container or its container opening from the vacuum line. It is possible for the evacuation device to be arranged in a common valve block with a filling valve device for filling the containers. It is also possible for the evacuation device to use an outlet of a filling device to suck the air out of the container.
  • the vacuum-operated device 16 can be or have, for example, an evacuation device for evacuating a blow mold.
  • the evacuation device can be designed to support a blow molding or stretch blow molding process by applying a vacuum between the preform and the inner wall of the blow mold.
  • the mold filling process can also be carried out in a vacuum chamber specially provided for this purpose.
  • the vacuum-operated device 16 can be or have, for example, a vacuum reservoir or vacuum reservoir.
  • the vacuum reservoir can be designed, for example, as a preferably essentially cylindrical tank.
  • the vacuum reservoir can serve as a vacuum source or vacuum source for at least one other vacuum-operated device of the container treatment system 10 .
  • the vacuum reservoir can serve as a buffer reservoir, for example to compensate for pressure fluctuations or a temporary failure of a (different) vacuum source of the container treatment system 10 .
  • the vacuum reservoir can be available as a vacuum reservoir with a desired pressure level, for example directly when the container treatment system 10 is started up.
  • the vacuum-operated device 16 can be or have, for example, a vacuum handling device or vacuum handling device of the container treatment system 10 .
  • the vacuum handling device can be designed, for example, to handle containers or container labels.
  • the vacuum handling device can be designed as a suction gripper or vacuum gripper in order to hold a container, for example.
  • the vacuum handling device can be designed, for example, as a vacuum roller or a vacuum cylinder or a vacuum suction bar in order to hold, for example, a label or a label tape for labeling containers.
  • the vacuum-operated device 16 can be or have a packing and/or unpacking device, preferably for primary or secondary packaging for the containers.
  • the vacuum-operated device 16 can be or comprise a vacuum pump of a mixer for degassing products for the containers.
  • the compressed air operated device 14 and the vacuum operated device 16 are particularly preferably included in the same container treatment machine of the container treatment systems 10, e.g. B. in a filling device 34, preferably a filler carousel, of the container treatment system 10. However, it is also possible that the compressed air operated device 14 and the vacuum operated device 16 are included in different container treatment machines of the container treatment systems 10.
  • the ejector 18 may include a pressurized air inlet 36 and an air intake inlet 38 .
  • the compressed air inlet 36 is connected to the compressed air outlet 30 via a fluid connection.
  • Compressed air may be directed from the compressed air powered device 14 from the compressed air outlet 30 to the compressed air inlet 36 of the ejector 18 .
  • the compressed air inlet 36 may be located downstream from the compressed air outlet 30 .
  • a rotary distributor or a rotary union 24 can be arranged, e.g. B. when the compressed air operated device 14 in a carousel, z. B. filler carousel, is included and the ejector 18 is not, or vice versa.
  • At least one valve for adjusting a flow rate, releasing and/or blocking the fluid connection can be arranged in the fluid connection between the compressed air outlet 30 and the compressed air inlet 28 .
  • the air intake inlet 38 is fluidly connected to the air outlet 32 . Air may be drawn by the vacuum powered device 16 from the air outlet 32 to the air intake inlet 38 of the ejector 18 .
  • the air intake inlet 38 may be located downstream from the air outlet 32 .
  • a rotary union or a rotary union 24 can be arranged, e.g. B. when the vacuum operated device 16 in a carousel, z. B. filler carousel, is included and the ejector 18 is not, or vice versa.
  • the vacuum pump 20 In the fluid connection between the air outlet 32 and the air intake inlet 38, for example, the vacuum pump 20, the backflow preventer 22 and/or at least one (additional) valve for adjusting a flow, releasing and/or blocking the fluid connection can be arranged.
  • the ejector 18 can work according to the principle of a jet pump or a static vacuum conveyor.
  • the ejector 18 can generate a negative pressure or a vacuum according to the Venturi principle.
  • a driving medium here: compressed air
  • sucks in the suction medium by exchange of impulses with a suction medium here: sucked air.
  • the ejector 18 can have, for example, a nozzle section 40, a suction chamber or mixing chamber 42 and/or an annular gap 44.
  • the nozzle portion 40 may be located downstream from the pressurized air inlet 36 .
  • the nozzle section 40 can, for example, be designed as a Laval nozzle.
  • the nozzle portion 40 may be located upstream of the suction chamber 42 .
  • the suction chamber 42 may be located downstream of the nozzle portion 40, preferably immediately adjacent the nozzle portion 40.
  • the suction chamber 42 may be located downstream of the air intake inlet 38.
  • the annular gap 44 can open into the suction chamber 42 .
  • the annular gap 44 may be located downstream of the air intake inlet 38 .
  • the compressed air flowing in through the compressed air inlet 36 can be accelerated in the nozzle section 40 . As the speed increases, the pressure of the accelerated air drops. The accelerated air flows into the suction chamber 42 . Immediately after the nozzle portion 40, a negative pressure is created in the suction chamber 42. The suction chamber 42 sucks air from the air suction inlet 38. The sucked-in air can flow into the suction chamber, for example, through the annular gap 44 or any other opening. The air from the compressed air inlet 36 and the air suction inlet 38 flows from the suction chamber 42 to an air outlet 46 of the ejector 18.
  • the ejector 18 is only designed in one stage with a nozzle section 40 and a suction chamber 42 .
  • the ejector 18 it is also possible for the ejector 18 to have a multi-stage design, for example to increase the suction volume.
  • the ejector 18 can have a plurality of nozzle section/suction chamber combinations arranged one behind the other (not shown).
  • the optional vacuum pump 20 may be placed in fluid communication between the vacuum powered device 16 and the ejector 18 .
  • the vacuum pump 20 may be located downstream of the vacuum operated device 16, preferably the air outlet 32.
  • the vacuum pump 20 may be located upstream of the ejector 18, preferably the air intake inlet 38.
  • a rotary union or a rotary union 24 can be arranged, e.g. B. when the vacuum operated device 16 in a carousel, z. B. filler carousel, is included and the vacuum pump 20 is not, or vice versa.
  • the vacuum pump 20 may draw air from the vacuum powered device 16 and direct it to the ejector 18 .
  • the ejector 18 can reduce a back pressure downstream of the vacuum pump 20 against which the vacuum pump 20 must work.
  • the vacuum pump 20 can preferably be designed as a liquid ring vacuum pump.
  • the optional backflow preventer 22 may be placed in fluid communication between the vacuum operated device 16 and the ejector 18, preferably downstream of the vacuum pump 20, if present.
  • the backflow preventer 22 can be arranged downstream of the vacuum-operated device 16 , preferably the air outlet 32 .
  • the backflow preventer 22 can be arranged upstream of the ejector 18, preferably the air intake inlet 38.
  • the backflow preventer 22 can prevent a backflow of air from the ejector 18, preferably the air intake inlet 38, back towards the vacuum pump 20 or the vacuum-operated device 16.
  • the non-return valve 22 can preferably be designed as a non-return valve.
  • the container treatment system 10 can also have a fluid line 48 (dashed in figure 1 shown).
  • the fluid line 48 can connect the compressed air source 12 and the ejector 18 to one another directly and/or bypassing the compressed air-operated device 14 .
  • the fluid line 48 can be arranged downstream of the compressed air outlet 26 of the compressed air source 12 .
  • the fluid line 48 may be located upstream from the compressed air inlet 36 of the ejector 18 .
  • the fluid line 48 can open into a fluid connection between the compressed air-operated device 14 and the ejector 18 .
  • the fluid line 48 may be arranged as a bypass line to the pneumatically actuated device 14 .
  • At least one valve for adjusting a flow, releasing and/or blocking the fluid line 48 can be arranged in the fluid line 48 .
  • the container treatment plant 10 can be operated as follows.
  • the compressed air source 12 can generate and/or provide compressed air.
  • the generated compressed air can be supplied from the compressed air source 12, preferably from the compressed air outlet 26, to the compressed air operated device 14, preferably the compressed air inlet 28.
  • the compressed air supplied to the air-operated device 14 can operate the air-operated device 14 .
  • the compressed air-operated device 14 can be operated by means of the compressed air to actuate a valve device, preferably a filling valve device for filling containers.
  • a valve device preferably a filling valve device for filling containers.
  • the compressed air-operated device 14 for example.
  • For blowing containers z. B. in a container blow molding machine.
  • the compressed air is routed to the ejector 18, preferably from the compressed air outlet 30 to the compressed air inlet 36.
  • the compressed air serves in the ejector 18 as a motive medium for sucking in a suction medium.
  • the ejector 18 can suck the suction medium (air) through the air suction inlet 38 .
  • the vacuum operated device 16 can be operated by drawing air from the vacuum operated device 16 .
  • the vacuum operated device 16 can be operated to evacuate containers.
  • the containers can, for example, be evacuated in a filling device 34 before filling.
  • the vacuum-operated device 16 can be operated to evacuate blow molds.
  • the blow molds can be evacuated before and/or during the blow molding of a preform into the container.
  • the vacuum operated device 16 for storing a vacuum e.g. B. be operated in a vacuum reservoir.
  • the vacuum-operated device 16 can be operated for handling, preferably containers and/or container labels.
  • a container can be held by means of a suction gripper and/or a container label can be held by means of a vacuum cylinder or a vacuum bar.
  • the ejector 18 may draw air directly or indirectly from the vacuum powered device 16, preferably from the air outlet 32 to the air suction inlet 38.
  • the ejector 18 may assist a vacuum pump 20, if present.
  • the ejector 18 can extract the air from the vacuum-operated device 16 in one or more stages.
  • the ejector 18 can reduce a back pressure of the vacuum pump 20 to reduce a power requirement of the vacuum pump 20 . It is possible that backflow of air from the ejector 18 towards the vacuum operated device 16 is prevented, e.g. B. through the backflow preventer 22.
  • compressed air it is also possible, for example when starting up the container treatment system, for compressed air to be routed from compressed air source 12 directly and/or bypassing compressed air-operated device 14 to ejector 18, preferably from compressed air outlet 26 to compressed air inlet 36.
  • the invention is not limited to the preferred embodiments described above. Rather, a large number of variants and modifications are possible, which also make use of the idea of the invention and therefore fall within the scope of protection.
  • the invention also claims protection for the subject matter and the features of the subclaims independently of the claims referred to.
  • the individual features of independent claim 1 are each disclosed independently of one another.
  • the features of the dependent claims are also disclosed independently of all features of independent claim 1 and, for example, independently of the features relating to the presence and/or configuration of the compressed air source, the compressed air-operated device, the vacuum-operated device and/or the ejector of independent claim 1. All ranges herein are to be understood as disclosed such that all values falling within each range are disclosed individually, e.g. B. also as the respective preferred narrower outer limits of the respective area.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Jet Pumps And Other Pumps (AREA)
EP22201088.6A 2021-10-20 2022-10-12 Installation de traitement de récipients et son procédé de fonctionnement Pending EP4169873A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021127191.6A DE102021127191A1 (de) 2021-10-20 2021-10-20 Behälterbehandlungsanlage und Verfahren zu deren Betrieb

Publications (1)

Publication Number Publication Date
EP4169873A1 true EP4169873A1 (fr) 2023-04-26

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ID=83691531

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22201088.6A Pending EP4169873A1 (fr) 2021-10-20 2022-10-12 Installation de traitement de récipients et son procédé de fonctionnement

Country Status (3)

Country Link
EP (1) EP4169873A1 (fr)
CN (1) CN219603227U (fr)
DE (1) DE102021127191A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1081091A1 (fr) 1999-08-31 2001-03-07 Sasib Beverage Deutschland GmbH Machine de remplissage ayants des moyens de génération de vide
EP2848385A1 (fr) * 2013-09-13 2015-03-18 Krones AG Dispositif et procédé destinés au soufflage d'ébauches en plastique avec récupération d'air de soufflage
EP3875381A1 (fr) * 2020-03-04 2021-09-08 Krones Aktiengesellschaft Dispositif d'étiquetage pour récipients

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1081091A1 (fr) 1999-08-31 2001-03-07 Sasib Beverage Deutschland GmbH Machine de remplissage ayants des moyens de génération de vide
EP2848385A1 (fr) * 2013-09-13 2015-03-18 Krones AG Dispositif et procédé destinés au soufflage d'ébauches en plastique avec récupération d'air de soufflage
EP3875381A1 (fr) * 2020-03-04 2021-09-08 Krones Aktiengesellschaft Dispositif d'étiquetage pour récipients

Also Published As

Publication number Publication date
DE102021127191A1 (de) 2023-04-20
CN219603227U (zh) 2023-08-29

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