Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
  • F25C—PRODUCING, WORKING OR HANDLING ICE
  • F25C5/00—Working or handling ice
  • F25C5/20—Distributing ice
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
  • B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
  • B65G43/08—Control devices operated by article or material being fed, conveyed or discharged
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
  • B65G59/00—De-stacking of articles
  • B65G59/06—De-stacking from the bottom of the stack
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
  • B65G59/00—De-stacking of articles
  • B65G59/06—De-stacking from the bottom of the stack
  • B65G59/067—De-stacking from the bottom of the stack articles being separated substantially perpendicularly to the axis of the stack
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
  • F25C—PRODUCING, WORKING OR HANDLING ICE
  • F25C5/00—Working or handling ice
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
  • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
  • F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
  • F25D3/12—Devices using other cold materials; Devices using cold-storage bodies using solidified gases, e.g. carbon-dioxide snow
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
  • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
  • F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
  • F25D3/12—Devices using other cold materials; Devices using cold-storage bodies using solidified gases, e.g. carbon-dioxide snow
  • F25D3/125—Movable containers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
  • B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
  • B65G2203/02—Control or detection
  • B65G2203/0266—Control or detection relating to the load carrier(s)
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
  • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
  • F25D2303/00—Details of devices using other cold materials; Details of devices using cold-storage bodies
  • F25D2303/08—Devices using cold storage material, i.e. ice or other freezable liquid
  • F25D2303/083—Devices using cold storage material, i.e. ice or other freezable liquid using cold storage material disposed in closed wall forming part of a container for products to be cooled
  • F25D2303/0831—Devices using cold storage material, i.e. ice or other freezable liquid using cold storage material disposed in closed wall forming part of a container for products to be cooled the liquid is disposed in the space between the walls of the container

Definitions

• the invention relates to a device for loading a refrigerant storage compartment of a cooling container with dry ice.
• Cooling containers of this type usually have a product receiving compartment for storing the products to be cooled and a refrigerant receiving compartment for a cryogenic refrigerant, in particular solid carbon dioxide, which is spatially separated from it but is thermally connected.
• Cooling containers of this type are described, for example, in EP 0 942 244 A1 or WO 2007/036656 A1.
• the cooling container has a drawer-like storage compartment for dry ice, which is thermally and
• the refrigerant storage compartment is filled with liquid carbon dioxide, which relaxes when it enters with great cooling and into a mixture of carbon dioxide snow with a
• Carbon dioxide snow is retained and furthermore cools the products by convection or radiation. Due to a corresponding setting of the heat transfer to the product storage compartment, the products can reliably at a temperature of, for example, 0 ° C to 5 ° C (for fresh goods) or -15 ° C to -25 ° C (frozen goods) for a period of up to 24 Hours and beyond.
• the cooling containers in question are generally dimensioned such that they are carried by an operator or are moved by means of wheels attached to them can.
• the cooling containers have a base area between 400 mm x 400 mm and 1200 mm x 800 mm and a height between 400 mm and 2000 mm, with a usable volume between 15 liters and 2000 liters. Since in many cases a small amount of dry ice is sufficient to maintain a sufficiently low cooling temperature over a period of a few hours, the compartment for the refrigerant is dimensioned much smaller than the compartment for holding the products and has, for example, a volume between 5 liters and 50 liters.
• Receiving filters must be provided, which retain the carbon dioxide snow in the receiving compartment.
• the carbon dioxide gas generated during the filling process must be removed, with the result that corresponding suction devices must be available at the filling station.
• the cooling containers are led one by one to the filling station one after the other and filled with liquid carbon dioxide, which means a considerable amount of time and does not allow the filling of a large number of pieces within a short time.
• Dry ice pellets or carbon dioxide snow powder in turn have the disadvantage that the amount of carbon dioxide required for the cooling task is difficult to measure exactly and, in addition, during the filling process together with the
• Moisture penetrating carbon dioxide particles from the ambient atmosphere can lead to undesirable water ice formation in the carbon dioxide receiving compartment, which necessitates frequent and time-consuming defrosting of the cooling container.
• the object of the invention is therefore to develop a device for loading a refrigerant receiving compartment of a cooling container with dry ice, which makes it possible to introduce a precisely metered amount of dry ice into the refrigerant receiving compartment as quickly as possible, and which therefore also fills a large number Cooling containers with refrigerant made possible in a short time.
• This object is achieved by a device having the features of patent claim 1.
• a device thus has a storage container which is equipped with a feed opening for stackable dry ice sheets, a magazine area for storing a stack of dry ice sheets and an output opening arranged in a lower area of the storage container, and an output unit for sequentially unloading dry ice sheets located in the storage area the dispensing opening.
• the device according to the invention serves to be already prefabricated
• Dry ice sheets sequentially, that is to say individually or in a predetermined number in succession to the refrigerant compartments of a plurality
• the dry ice blocks are
• Prefabricated, preferably cuboid blocks for example produced by pressing carbon dioxide snow, with a base area of, for example, 25 cm ⁇ 25 cm to 40 cm ⁇ 50 cm and a height of, for example, between 2.5 cm and 10 cm. They are either available as pure ice sheets or are individually welded in plastic and their dimensions are adapted to the respective refrigerant storage compartment and / or the respective cooling task.
• Dry ice sheets are stacked or individually manually or by means of a
• Machine inserted into the magazine of the storage container via the feed opening.
• 10 to 100 dry ice sheets can be stored in the magazine.
• a transport container for transport is to be used here as a “cooling container”
• temperature sensitive goods such as food or
• pharmaceutical products can be understood, that with a product receiving compartment for receiving a product to be cooled and with a product receiving compartment for receiving a product to be cooled and with a product receiving compartment for receiving a product to be cooled and with a product receiving compartment for receiving a product to be cooled and with a product receiving compartment for receiving a product to be cooled and with a product receiving compartment for receiving a product to be cooled and with a product receiving compartment for receiving a product to be cooled and with a
• Refrigerant compartment is equipped to hold one
• Dry ice blocks or several dry ice blocks is suitable.
• the cooling containers have a base area between 400 mm x 400 mm and 1200 mm x 800 mm and a height between 400 mm and 2000 mm, with a usable volume between 15 liters and 2000 liters.
• the refrigerant compartment has
• the invention enables cooling containers with integrated refrigerant compartments
• the refrigerant storage compartment to be filled is equipped either with a top-side or with a side inlet opening.
• the storage container comprises a lateral discharge opening, which is usually arranged in a lower region of the storage container, below the magazine region.
• the storage container is either closed or open; in the latter case, however, it is equipped with means such as a grid, guide rails etc. the one in
• the output unit is the
• the invention is equipped with a horizontally movable sliding element, by means of which one or more of the dry ice sheets stored in the magazine area, generally those dry ice sheet (s) that are or are at the bottom of the stack, are pushed out of the storage container to the side.
• the sliding element is preferably actuated with an electrically or pneumatically operated drive unit.
• the refrigerant receptacle to be filled with this device should have a lateral feed opening which, when filled, is aligned with the lateral dispensing opening of the device, so that the dry ice plates are inserted directly into the refrigerant receptacle by means of the sliding element, or there should be additional guide means which feed the ejected dry ice plate (s) to a feed opening arranged, for example, on the top of the refrigerant receiving compartment.
• Cooling task for example, the volume of the refrigerant storage compartment to be filled or the required amount of dry ice can be adjusted. If only one dry ice sheet is ejected, only the lowest will be used
• the area of the dispensing opening is, unless it is defined by a
• movable closure element is designed to be variable, the existing
• Storage container is equipped with a dispensing opening on the underside, that is to say arranged in the bottom of the storage container, and the dispensing unit comprises at least two holding devices, each of which holds the stack of dry ice plates in the magazine area against shifting in the vertical direction in a first operating position and detaches from the stack in a second operating position and thus allow vertical movement of the stack.
• the first of the two holding devices grips the bottom one
• the second holding device engages on a dry ice plate lying above, in particular on the plate located directly above the lowermost dry ice plate. If the second holding device in the
• the lowest dry ice plate or all dry ice plates located below the second holding device are separated from the rest of the stack and fall through the discharge opening, while the rest of the stack is held by the second holding device and remains in the magazine area.
• Holding devices dry ice sheets are supplied in rapid succession to refrigerant compartments, which (with or without an associated cooling container) in succession at the outlet opening by means of a transport device to be led past.
• the holding devices are preferably actuated by means of an electrically or pneumatically operated drive unit.
• the refrigerant receiving compartment preferably have a top opening;
• the vertical position of the second holding device on the stack is preferably variably adjustable and can be actuated manually or according to a preset program, for example by means of a control and monitoring unit. In this way it is possible to adapt the number of dry ice plates to be fed to a refrigerant storage compartment to the particular cooling task to be solved.
• a closure element is preferably assigned to the dispensing opening, which is arranged on the underside of the storage container.
• the closure element serves in particular to protect the dispensing opening on the underside from the penetration of moisture from the ambient atmosphere; it also enables thermal insulation of the storage container on its underside.
• Embodiment of the invention with a lateral dispensing opening are at least partially fulfilled by the sliding element and / or the base fixed there.
• Cooling tank enables a precisely defined amount of refrigerant to be fed to the refrigerant storage compartment.
• the device according to the invention of the two aforementioned embodiments makes it possible, in particular, to load a refrigerant receiving compartment very quickly with a precisely defined amount of dry ice, so that a large number of refrigerant receiving compartments can accordingly be filled in a short time and without large losses of dry ice. For example, 10-50 and more refrigerant compartments can be charged with a precisely defined amount of dry ice per minute with a device according to the invention.
• the device also expediently comprises a transport device, by means of which the refrigerant receiving compartments or cooling containers to be filled, which are equipped with a refrigerant receiving compartment, into an area in front of the
• Dispensing opening can be transported and positioned for loading.
• the transport device automatically positions a cooling container or a refrigerant storage compartment in the area of the dispensing opening in such a way that, after the cooling container or the refrigerant storage compartment has been positioned, the corresponding number is only activated by manually or automatically actuating the dispensing unit Dry ice blocks are dispensed and fed directly to the refrigerant storage compartment without the need for further manual settings or adjustments.
• the transport device comprises a conveying device, by means of which a plurality of cooling containers or refrigerant receiving compartments can be positioned in succession.
• the output unit is preferably data-connected to a control and monitoring unit, which in turn is in data communication with a sensor device by means of which the correct position of a refrigerant receiving compartment to be filled can be determined in front of the outlet opening.
• the control unit regulates the actuation of the output unit depending on the position of a refrigerant storage compartment.
• the control and monitoring unit can optionally also take on further tasks, such as, for example, supplying the correct number of dry ice plates to be supplied to a refrigerant receiving compartment in accordance with a programming carried out beforehand; the automatic feed of the transport device can also be regulated by means of the control unit or an automatic interruption of the
• a device for filling a plurality of refrigerant compartments comprises two or more filling devices of the aforementioned type.
• the filling devices work with one Transport device together, on which they are arranged one after the other - seen in the transport direction of the refrigerant receiving compartments.
• a plurality of refrigerant compartments are moved past the filling devices by means of the transport device, while the output units of the
• Filling devices are actuated in such a coordinated manner that the refrigerant receiving compartments are filled with dry ice plates simultaneously or in quick succession.
• the coordinated actuation of the filling device and the feed of the transport device will be regulated by means of a control and monitoring unit.
• the device 1 shown in Fig. 1 comprises a storage container 2 with thermally well-insulated walls, on the top of which a feed opening 3 for
• Dry ice blocks 4 is arranged.
• the dry ice blocks 4 are prefabricated cuboid blocks, for example produced by pressing carbon dioxide snow, with a base area of, for example, 25 cm ⁇ 25 cm to 40 cm ⁇ 50 cm and a flea of, for example, between 2.5 cm and 10 cm.
• the storage container 2 closes with a solid base 5.
• a lateral discharge opening 6 is located directly above the bottom 5.
• the bottom 5, as shown in the exemplary embodiment, can be a
• the bottom is designed to be essentially one horizontal positioning of the dry ice blocks 4 in the storage container 2 ensured.
• the storage container 2 is equipped with an output unit 7.
• the dispensing unit 7 comprises a horizontally through one of the dispensing opening 6
• the drive unit 10 comprises, for example, an electric motor that is controlled by a control unit 11.
• the device 1 comprises a transport device 12, by means of which one or more cooling containers 13 are automatically supplied to the storage container 2 for the purpose of filling during the operation of the device 1.
• the cooling container 13 has a product receiving compartment 14 and a refrigerant receiving compartment 15.
• the refrigerant receiving compartment 15 has a supply opening 16 for supplying
• Dry ice blocks 4 preferably with a closure construction 17,
• a closure flap can be opened and closed in such a way that a dry ice block 4 pushed through the feed opening 16 automatically opens the closure structure 17, and the closure structure 17 automatically closes as soon as the dry ice block 4 has been completely inserted into the refrigerant storage compartment 15.
• the refrigerant storage compartment 15 is constructed in such a way that a dry ice block 4 can be inserted into the refrigerant storage compartment 15 easily and without the risk of jamming or jamming.
• the sliding element 9 When the device 1 is in operation, the sliding element 9 is initially in a position in which its front surface 18 essentially aligns with the inner wall of the storage container 2. Then the storage container 2
• Dry ice blocks 4 are supplied, which form a stack 19 of, for example, 10-100 dry ice blocks 4 in a magazine region 20 in the upper part of the storage container 2, the lowest rock ice block 4 in each case lying horizontally on the floor 5. After positioning the cooling container 13 by means of the
• the drive unit 10 is actuated and the sliding element 9 pushes the lowest dry ice block 4 in each case through the discharge opening 6 and the supply opening 16 into the refrigerant receiving compartment 15. Subsequently, the sliding element 9 retracts again into its starting position and the stack 19 of dry ice blocks 4 remaining in the magazine region 20 falls down in the storage container 2 until the lowest dry ice block 4 then lies on the floor 5.
• the closure construction 17 closes the feed opening 16 and the cooling container 13 is transported away by means of the transport device 12 and by a subsequent one
• Cooling container 13 replaced.
• the correct positioning of the feed opening 16 in relation to the discharge opening 6 is detected by means of a sensor 21, the signals of which are processed by the control unit 11 and for issuing corresponding control commands from the control unit 11 to the drive unit 10 and possibly the transport unit 12.
• Device 25 are identified by the same features with the same reference numerals as in FIG. 1.
• the device 25 has a thermally well-insulated storage container 26 with a discharge opening 28 on the underside.
• the dispensing opening 28 can be opened and closed with a horizontally displaceable closure element 27.
• the closure element 27, which can be moved with a drive unit 29, has in particular the function of thermally insulating the storage container 26 on the underside and at least largely preventing the penetration of moisture from the ambient atmosphere.
• cooling containers 30 can be used in particular
• the device 25 is also equipped with an output unit 33 which enables the refrigerant receiving compartment 31 to be loaded with individual and / or a predetermined number of dry ice plates 4.
• the output unit 33 has two folding devices 34, 35, which are located on the storage container 26 are arranged vertically one above the other and which in use make it possible to prevent vertical movement of a stack 36 of dry ice plates 4 which are located in the storage container 26.
• the holding devices 34, 35 can be designed differently.
• the holding device 35 is in the embodiment shown here with the side
• Slidable holding plates 38 equipped which in a first position engage under the lowest dry ice block 4 of the stack 36, in a second position, however, are arranged laterally from the stack 36.
• the holding device 34 is equipped in the exemplary embodiment with pressing cheeks 37, which by lateral
• the holding device 34 acts on a dry ice plate 4 located above the lowermost dry ice plate 4.
• the devices 34, 35 are actuated by means of a drive unit 39 - for example electrically or hydraulically operated.
• both holding devices 34, 35 can be equipped with holding plates 38 or with pressing cheeks 37, or the device with holding plates 38 is arranged above the device with pressing cheeks 37, or others Means for holding the stack 36 may be provided.
• a magazine area 40 of the storage container 26 above the holding devices 34, 35 is first filled with a stack 36 of dry ice plates 4.
• the holding device 35 projects with the holding plates 38 into the interior of the storage container 26 and thus prevents the stack 36 from slipping off in the direction of the discharge opening 28
• Closure element 27 is brought into a position closing the dispensing opening 28 and prevents penetration of ambient moisture into the
• the transport device 12 transports cooling containers 30 one after the other through the discharge opening 28 of the device 25. Is by the sensor unit 21st the presence of a refrigerant compartment 31 just below the
• Dispensing opening 28 is detected, the pressing cheeks 37 of the holding device 34 are advanced in the direction of the stack 36 on dry ice plates 4 to such an extent that the second lowest dry ice plate 4 and thus the stack 36 of the dry ice plates 4 lying above them are fixed in a vertical manner. At the same time it will
• Closure element 27 is displaced into its position which releases the dispensing opening 28.
• the holding plates 38 of the holding device 35 laterally outward, the lowermost dry ice plate 4 is now released. It falls under the action of gravity through the discharge opening 28 into the
• the cooling container 30 is then transported further by means of the transport device 12 and replaced by a subsequent cooling container, the refrigerant storage compartment of which is to be filled with one or more dry ice plate (s).
• the filled refrigerant receiving compartment 31 is closed with a lid in a manner not shown here.
• the closure element 27 can after each
• the positioning device can be any positioning device, not shown here, can be any positioning device.
• the positioning device can be any positioning device.
• Holding device 34 with its pressing cheeks 37 are moved vertically relative to the stack 36. In this way, the number of dry ice sheets 4 that are released when the lower holding device 35 is released can be varied.
• cooling containers 13, 30 can be loaded with dry ice blocks 4 in very rapid succession, for example at 10-50 units per minute.
• the supply of the dry ice blocks 4 to the storage container 2, 26 can also be automated by means of a suitable machine, which is not shown here.

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• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Mechanical Engineering (AREA)
• Thermal Sciences (AREA)
• General Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Combustion & Propulsion (AREA)
• Carbon And Carbon Compounds (AREA)
• Freezing, Cooling And Drying Of Foods (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=69061258

Family Applications (1)

Country Status (5)

Families Citing this family (3)

Family Cites Families (31)

• 2018
  • 2018-12-12 DE DE102018009755.3A patent/DE102018009755B4/de active Active
• 2019
  • 2019-12-10 CN CN201980083096.3A patent/CN113260824A/zh active Pending
  • 2019-12-10 US US17/299,991 patent/US20220018585A1/en not_active Abandoned
  • 2019-12-10 EP EP19828977.9A patent/EP3894763A1/de active Pending
  • 2019-12-10 WO PCT/EP2019/084325 patent/WO2020120433A1/de unknown

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