EP4048633A1 - Dispositif et méthode de production et de transport de pellets de glace carbonique - Google Patents

Dispositif et méthode de production et de transport de pellets de glace carbonique

Info

Publication number
EP4048633A1
EP4048633A1 EP20796798.5A EP20796798A EP4048633A1 EP 4048633 A1 EP4048633 A1 EP 4048633A1 EP 20796798 A EP20796798 A EP 20796798A EP 4048633 A1 EP4048633 A1 EP 4048633A1
Authority
EP
European Patent Office
Prior art keywords
die
dry ice
ice pellets
carbon dioxide
press cylinder
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.)
Withdrawn
Application number
EP20796798.5A
Other languages
German (de)
English (en)
Inventor
Jean-Claude CLAEYS
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.)
Messer Group GmbH
Original Assignee
Messer Group GmbH
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 Messer Group GmbH filed Critical Messer Group GmbH
Publication of EP4048633A1 publication Critical patent/EP4048633A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/22—Extrusion presses; Dies therefor
    • B30B11/26—Extrusion presses; Dies therefor using press rams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/20—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by expressing the material, e.g. through sieves and fragmenting the extruded length
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/50—Carbon dioxide
    • C01B32/55—Solidifying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/003—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods using material which dissolves or changes phase after the treatment, e.g. ice, CO2
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/141—Feedstock

Definitions

  • the invention relates to a device for producing and transporting dry ice pellets.
  • dry ice pellets or “carbon dioxide pellets” are to be understood as hard parts made of solid carbon dioxide that were produced by pressing carbon dioxide snow or by freezing liquid carbon dioxide. Dry ice pellets serve various purposes, for example they can be used to irradiate surfaces for cleaning purposes or to cool products.
  • Devices for producing dry ice pellets which have a press cylinder with a movable piston, an inlet opening for introducing carbon dioxide into the press cylinder and a die equipped with one or more holes on the side of the press cylinder, against which the piston presses the carbon dioxide.
  • the carbon dioxide which is usually supplied in liquid form, expands when it enters the plunger, with partial formation of carbon dioxide snow. This is pressed against and through the holes in the die by the propulsion of the piston.
  • the gas produced when the carbon dioxide is fed in is discharged via a discharge line.
  • Devices of this type are known, for example, from EP 1 328765 B1, US 2012/0291479 A1 or DE102008 027283 A1.
  • the strands of dry ice emerging from the die break into sections of irregular length when they exit the die or are cut up using suitable cutting tools.
  • the fragments are caught in containers in which they are transported to the place of use, for example a blasting device.
  • a disadvantage of these objects is that the length of the pellets is only precisely determined within a certain range of variation and therefore there is a certain uncertainty about the total amount of dry ice produced.
  • Apparatus for the internal cooling of tissue parts, in particular pieces of meat, in which dry ice pellets are injected into the tissue to be cooled are known from EP 0707796 A1 or US 5413526 B1.
  • the to it The apparatus used each comprise a slot means, by means of which a pocket is formed in the piece of meat to be cooled, into which a large number of dry ice pellets are then filled.
  • the disadvantage of this object is that the amount of dry ice pellets supplied can only be determined very imprecisely, which in the case of these objects can lead to undesirable inhomogeneous cooling of the product and thus to inhomogeneous meat quality.
  • the invention is therefore based on the object of creating a device for producing and transporting dry ice pellets, in which the pellets can be produced in a uniform size and shape and transported to the place of use without the risk of breakage.
  • the die functions both as a mold for the dry ice pellets to be produced and as a transport container for them.
  • the dry ice pellets produced in the pelletizing device from compressed carbon dioxide snow have a uniform shape which is predetermined by the length and the cross section of the passages in the die.
  • the pellets are transported in the die and together with it to the place of use, which ensures safe transport that is protected from breakage.
  • the pellets remain in the die until they are replaced by a separate one at the point of use Application device can be pushed or pushed out of the die.
  • the die which has been freed from the carbon dioxide pellets, can then be reconnected to the press cylinder and loaded with dry ice pellets.
  • the separating device for removing any dry ice strands that may have arisen during the manufacture of the matrices and protrude from the end of the mold.
  • the separating device preferably comprises a cutting device which separates the dry ice strands flush with the end face of the die and in this way ensures pellets whose size corresponds exactly to the dimensions of the feedthroughs.
  • the strands of dry ice cut off in front of the end face of the die can then be collected and sent for further use, in which a precisely reproducible size and shape of the pellets is less relevant, for example as a blasting or coolant.
  • the separating device can be arranged directly on the press cylinder and used while the die is still fixed on the press cylinder, or as a separate apparatus to which the die detached from the press cylinder is fed after the dry ice pellets have been produced.
  • this separating device can also be equipped with means that remove dry ice pellets from those passages in which no dry ice pellet is to be transported.
  • the die equipped with dry ice pellets is preferably used in a device remote from the pelletizing device for applying dry ice pellets (hereinafter also referred to as “application device”) as an exchangeable magazine for carbon dioxide pellets.
  • the die preferably has fastening means with which it can be mounted as simply as possible in the application device and / or on the press cylinder, such as bores, grooves or pins that interact with corresponding means in the application device or the press cylinder.
  • the dry ice pellets are pushed out or pressed out by a mechanical action and fed to their place of use.
  • the leadthroughs are arranged rotationally symmetrically about a central axis of the die.
  • the die is thus constructed in the shape of a circular cylinder and the leadthroughs are arranged at the same angular intervals from one another and at the same radial distance from a central axis of the die.
  • a die designed in this way can, for example, interact with a turret mechanism in an application device and, in particular, facilitate the sequential ejection of individual dry ice pellets from the die.
  • a die constructed in this way can, for example, have six to twenty, preferably eight to sixteen feedthroughs that can be equipped with dry ice pellets.
  • the leadthroughs running parallel to one another from face to face of the die are arranged in parallel rows that are offset from one another, so that the arrangement of lead throughs is as dense as possible within the die.
  • a device for automatically inserting and fixing the die is preferably assigned to the press cylinder. In this case, there is no need for time-consuming manual replacement of the dies.
  • the leadthroughs have, for example, a length between 30 mm and 150 mm, preferably between 50 mm and 100 mm and a diameter between 5 mm and 25 mm, preferably between 5 mm and 15 mm.
  • the dry ice pellets produced in the feedthroughs each have a mass between 5g and 100g, preferably between 10g and 50g, and a volume between 3 cm 3 and 50 cm 3 , with a diameter between 5 mm and 15 mm. These comparatively large pellets are particularly suitable for uniform cooling of meat products after slaughter.
  • the gas outlet is preferably connected to a device for reliquefying carbon dioxide gas that is produced in the press cylinder when the liquid carbon dioxide is depressurized. The reliquefied carbon dioxide can then be used again to generate carbon dioxide pellets in the device according to the invention or in another process.
  • the device according to the invention is preferably used in a system for generating, transporting and applying dry ice pellets which, in addition to the device according to the invention, is equipped with a device for applying dry ice pellets (hereinafter also referred to as "application device” for short), in which the die is a magazine can be used for feeding dry ice pellets.
  • the application device has a magazine receptacle into which the die can be inserted, as well as a device by means of which the dry ice pellets located in the passages of the die inserted in the magazine receptacle are pushed or pushed out of the passages of the die.
  • the system also comprises a device for reliquefying the carbon dioxide gas produced in the pelletizing device according to the invention and / or a separation device of the type described above.
  • dry ice pellets are first produced in the die of a pelletizing device according to the invention.
  • the die loaded with dry ice pellets is then transported to an application device and inserted into the magazine receptacle of the application device.
  • the application device pushes the dry ice pellets out of the die and at the same time conveys them to their destination, for example into a part of a product to be cooled which is intended to receive the dry ice pellets.
  • the die After the die has been emptied, it is removed from the magazine receptacle and can be reloaded with dry ice pellets in the pelletizing device in the manner described above.
  • the object of the invention is also achieved by a method for producing, transporting and applying dry ice pellets, in which Dry ice pellets are produced in a die of a pelletizing device, the die equipped with dry ice pellets is then separated from the pelletizing device and fed to a device for applying dry ice pellets (application device) as a magazine for dry ice pellets, and the dry ice pellets are brought to their destination by means of the application device.
  • a device for applying dry ice pellets application device
  • individual dry ice pellets of a precisely defined size can be brought to their place of use.
  • the dry ice pellets are fed to a product to be cooled by means of the application device, for example openings corresponding to the size of the dry ice pellets are created in the interior of a tissue, such as a piece of meat, into each of which a dry ice pellet is introduced by means of the application device.
  • Fig. 1 The pelletizing device of a device according to the invention in one
  • Fig. 4 A system according to the invention for generating, transporting and
  • the pelletizing device 1 shown in Fig. 1 comprises, in a manner known per se, a pressure-resistant press cylinder 2 in which a piston 3 is accommodated in a longitudinally movable manner.
  • the piston 3 is moved by means of a piston rod 6 which is passed through an opening 5 in a rear end face 4 of the press cylinder 2 and which is connected to a drive (not shown here).
  • the press cylinder 2 furthermore comprises an inlet 7 for liquid carbon dioxide and a gas outlet 8 for carbon dioxide gas produced when the supplied liquid carbon dioxide is expanded.
  • a die 10 which is described in more detail below, is arranged on the end face 9 of the press cylinder 2 opposite the rear end face 4.
  • fastening means for example, are in a front section 11 of the press cylinder 2
  • Threaded bores 12 are arranged which open out on the end face 9.
  • the threaded bores 12 serve for the releasable fastening of the die 10 to the press cylinder 2 by means of screws, not shown here.
  • other connecting means can also be used, by means of which the die 10 can easily be mounted on the press cylinder 2 and just as easily removed from it and, for example, exchanged for another die.
  • the die 10 is a cylindrical body with an inner end face 14 and an outer end face 15 made of a pressure-stable material, such as stainless steel, within which a number of passages 16 are provided, parallel to a longitudinal axis 17 of the press cylinder 2 and die 10 and - in the exemplary embodiment according to FIG. 2 - are arranged at the same radial distance from the longitudinal axis 17 in each case.
  • a central bushing 18 (as shown in the exemplary embodiment) or a number of further bushings can be arranged radially on the inside of the bushings 16; or the die is designed to be closed in this area.
  • the length of the die 10, and thus the length of the passages 16, as well as the diameter of the passages 16 are dimensioned so that the length and diameter of the dry ice pressed into them when the piston 3 is advanced corresponds in length and diameter to the dimensions of dry ice pellets to be applied in an application .
  • the dry ice pellets are thus produced within the die 10 and remain there until they are applied at a place of use.
  • the die 10 is therefore fastened to the press cylinder 2 in such a way that it can be easily removed from the press cylinder 2 by an operator or by an automatic device and can be replaced by an empty die 10, that is to say not equipped with dry ice, and has corresponding connecting means, for example bores 19, which interact with the threaded holes 12.
  • the die 20 shown in FIG. 3 differs from the die 10 essentially in that the passages 21 are not arranged rotationally symmetrically about an axis, but rather in rows that are offset from one another, around one axis To enable a tight arrangement of the feedthroughs 21, which in turn allows the largest possible number of dry ice pellets to be produced in a die 20.
  • the die 20 has bores 22 arranged laterally to the feedthroughs, on which suitable connecting means (not shown here), for example screws, which are screwed into corresponding threads on the front side of the press cylinder 2.
  • the bores 22 can at the same time also serve to fasten the die 20 in an application device, for example a device for applying dry ice pellets into a piece of meat.
  • an application device for example a device for applying dry ice pellets into a piece of meat.
  • a sealing ring 23 ensures a sealing connection with the press cylinder 2, which prevents carbon dioxide ice from escaping laterally on the die 10, 20.
  • a die 10, 20 is first attached to the press cylinder 2. Subsequently, liquid carbon dioxide is fed to the press cylinder 2 via the inlet 7. The liquid carbon dioxide expands as it enters the press cylinder 2 with the formation of carbon dioxide snow and carbon dioxide gas. While the carbon dioxide snow remains in the press cylinder 2, the carbon dioxide gas is discharged via the gas outlet 8. Finally, inlet 7 and gas outlet 8 are closed by means of valves not shown here. By advancing the piston 3, the carbon dioxide snow located in the press cylinder 2 is pressed against and into the passages 16, 18 of the die 10, 20 and in the process is pressed to dry ice.
  • the mass of the carbon dioxide snow present in the press cylinder 2 should not be or only insignificantly greater than the mass of the dry ice that can be pressed into the passages 16, 18, so that the piston 3 is located as directly as possible on the end face 14 of the die 10, 20 after pressing. Subsequently, the piston 3 is returned to its starting position, as a result of which the interior of the press cylinder 2 is relieved of pressure.
  • the die 10, 20 is now dismantled together with the dry ice contained in the passages 16, 18 and replaced by a new die that is not equipped with dry ice.
  • the die 10, 20 equipped with dry ice is subjected to an after-treatment before or after being separated from the press cylinder 2 in a separating device (not shown in FIGS.
  • the system 25 includes an application device 27. Furthermore, the system 25 includes a tank 28 for pressurized carbon dioxide and a device 29 for reliquefying the liquid carbon dioxide in the pelleting device 1 when the pressure is released resulting carbon dioxide gas.
  • a die (in the example shown here, die 10) is connected to the press cylinder 2 of the pelletizing device 1. Subsequently, liquid carbon dioxide is fed from the tank 28 to the pelletizing device 1 via a feed line 30. The carbon dioxide gas produced during the expansion of the liquid carbon dioxide in the press cylinder 2 is fed to the device 29 via a gas line 31, pressurized there, reliquefied and returned to the tank 28 via a return line 32.
  • the die 10 equipped with dry ice pellets is released from the press cylinder 2 of the pelletizing device 1 and fed to the separating device 26, in which any protruding pieces of dry ice are cut off.
  • the die 10 which is thus equipped with dry ice pellets of a precisely defined geometry, then serves the application device 27 as a magazine for dry ice pellets and for this purpose is inserted into a magazine receptacle 33 of the application device 27.
  • the application device 27 is a device constructed, for example, like a pistol, which is equipped with mechanical pushing means, for example with elongated needles which are arranged axially movable within the application device in such a way that they can remove the dry ice pellets present in the feedthroughs 16 individually or in groups one after the other push all out at the same time.
  • mechanical pushing means for example with elongated needles which are arranged axially movable within the application device in such a way that they can remove the dry ice pellets present in the feedthroughs 16 individually or in groups one after the other push all out at the same time.
  • ejecting the dry ice pellets they are preferably brought directly to their place of use for example a product to be cooled, in particular a food product.
  • it is a piece of meat into which dry ice pellets are filled into openings or pockets previously made in the piece of meat for the purpose of cooling.
  • the now emptied die 10 is fed back to the pelleting device 1 and again loaded with dry ice pellets, as indicated by the arrow 34.
  • both the carbon dioxide gas produced during pellet production and the die 10 are circulated and reused.
  • a different die for example the die 20, can also be used in such a system.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

L'invention concerne un dispositif de production de pellets de glace carbonique comprenant un cylindre de pressage, dans lequel débouche une ouverture d'entrée pour l'alimentation en dioxyde de carbone liquide et qui est équipé, au niveau d'une extrémité, d'une matrice, qui a une ou plusieurs ouvertures, et d'un piston, qui est logé de façon mobile longitudinalement dans le cylindre de pressage. Pendant l'utilisation, du dioxyde de carbone liquide est introduit dans le cylindre de pressage. Ledit dioxyde de carbone est détendu au niveau de l'ouverture d'entrée, est au moins partiellement transformé en neige carbonique et est pressé contre et à travers la matrice par le mouvement du piston. Selon l'invention, la matrice se présente sous la forme d'un corps cylindrique qui peut être relié au cylindre de pressage et qui est équipé de traversées, qui sont orientées parallèlement à un axe longitudinal de la matrice et sont dimensionnées de telle sorte que la longueur et les diamètres des traversées correspondent à la longueur et aux diamètres des pellets de glace carbonique à produire.
EP20796798.5A 2019-10-25 2020-10-22 Dispositif et méthode de production et de transport de pellets de glace carbonique Withdrawn EP4048633A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019007439.4A DE102019007439A1 (de) 2019-10-25 2019-10-25 Vorrichtung zum Erzeugen und Transportieren von Trockeneispellets
PCT/EP2020/079807 WO2021078891A1 (fr) 2019-10-25 2020-10-22 Dispositif et méthode de production et de transport de pellets de glace carbonique

Publications (1)

Publication Number Publication Date
EP4048633A1 true EP4048633A1 (fr) 2022-08-31

Family

ID=73013448

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20796798.5A Withdrawn EP4048633A1 (fr) 2019-10-25 2020-10-22 Dispositif et méthode de production et de transport de pellets de glace carbonique

Country Status (7)

Country Link
US (1) US20220379276A1 (fr)
EP (1) EP4048633A1 (fr)
CN (1) CN114599606A (fr)
BR (1) BR112022007614A2 (fr)
CA (1) CA3155583A1 (fr)
DE (1) DE102019007439A1 (fr)
WO (1) WO2021078891A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021002823A1 (de) * 2021-06-01 2022-12-01 Messer Se & Co. Kgaa Verfahren und Vorrichtung zum Pressen eines flüssigen Extrakts aus einem Pressgut
NL2034234B1 (en) 2023-02-28 2024-09-09 Univ Twente Dry ice

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2464089A (en) * 1944-10-11 1949-03-08 Internat Carbonic Engineering Method and apparatus for producing composite solid carbon dioxide
DE2051506A1 (en) * 1970-10-20 1972-04-27 Air Reduction Dry ice prodn - using multiple extrusion die at end of piston cylinder unit
US3835657A (en) * 1971-10-26 1974-09-17 Chemetron Corp Carbon dioxide extruded pellets
US4077406A (en) * 1976-06-24 1978-03-07 American Cyanamid Company Pellet implanter for animal treatment
US5301509A (en) * 1992-07-08 1994-04-12 Cold Jet, Inc. Method and apparatus for producing carbon dioxide pellets
WO1995027591A1 (fr) * 1992-07-08 1995-10-19 Cold Jet, Inc. Appareil et procede pour fabriquer des granules de neige carbonique
US5413526A (en) * 1994-02-28 1995-05-09 Oscar Mayer Foods Corporation Solid coolant inserter
US5453044A (en) 1994-02-28 1995-09-26 Oscar Mayer Foods Corporation Granular solid coolant inserter
US5596874A (en) * 1996-05-10 1997-01-28 Liu; Te-San Apparatus for making carbon-dioxide snow bar
US6189336B1 (en) * 1999-01-13 2001-02-20 Innovative Co2 Equipment, Inc. Apparatus for facilitating the formation capture and compression of solid carbon dioxide particles
JP3412753B2 (ja) * 1999-07-19 2003-06-03 エス・ジーエンジニアリング株式会社 物質の微粒化装置
DE60132346T2 (de) 2000-09-05 2009-01-15 Cold Blasting Aps Granulierpresse für trockeneis
TW548141B (en) * 2000-11-14 2003-08-21 Itec Co Ltd Dry ice spraying apparatus
EP1980365B1 (fr) * 2007-04-05 2010-12-29 Rosa Rotstein Dispositif et procédé destinés au traitement de surface ou à la manipulation de la surface au moyen d'un granulé de glace sèche
DE102008027283A1 (de) * 2008-06-06 2009-12-10 Linde Ag Vorrichtung zur Erzeugung von Trockeneispellets und Verfahren zur Oberflächenreinigung
WO2012159037A2 (fr) * 2011-05-19 2012-11-22 Cold Jet Llc Procédé et appareil de formation de pastilles de dioxyde de carbone

Also Published As

Publication number Publication date
WO2021078891A1 (fr) 2021-04-29
CA3155583A1 (fr) 2021-04-29
BR112022007614A2 (pt) 2022-07-19
DE102019007439A1 (de) 2021-04-29
CN114599606A (zh) 2022-06-07
US20220379276A1 (en) 2022-12-01

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