EP2481524B1 - Procédé de traitement abrasif de pièce et/ou marchandise en vrac à l'aide d'un dispositif de production de froid et procédé de refroidissement de gaz à partir de celui-ci - Google Patents

Procédé de traitement abrasif de pièce et/ou marchandise en vrac à l'aide d'un dispositif de production de froid et procédé de refroidissement de gaz à partir de celui-ci Download PDF

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Publication number
EP2481524B1
EP2481524B1 EP12000592.1A EP12000592A EP2481524B1 EP 2481524 B1 EP2481524 B1 EP 2481524B1 EP 12000592 A EP12000592 A EP 12000592A EP 2481524 B1 EP2481524 B1 EP 2481524B1
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Prior art keywords
chamber
interior
treatment chamber
aperture
evaporator
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EP12000592.1A
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German (de)
English (en)
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EP2481524B8 (fr
EP2481524A1 (fr
Inventor
Dietmar Wacker
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/18—Abrasive blasting machines or devices; Plants essentially provided with means for moving workpieces into different working positions
    • B24C3/26—Abrasive blasting machines or devices; Plants essentially provided with means for moving workpieces into different working positions the work being supported by barrel cages, i.e. tumblers; Gimbal mountings therefor
    • B24C3/263—Abrasive blasting machines or devices; Plants essentially provided with means for moving workpieces into different working positions the work being supported by barrel cages, i.e. tumblers; Gimbal mountings therefor using refrigerating means

Definitions

  • the invention relates to a device for abrasive processing of piece and / or bulk material, with at least one treatment chamber for processing the piece and / or bulk material, wherein at least one refrigeration device with evaporator for cooling at least the treatment chamber and / or the piece and / or Bulk material is provided, a chamber with at least one refrigeration device with evaporator for cooling at least one treatment chamber and / or the piece and / or bulk material of such a device for abrasive processing of piece and / or bulk material and a method for cooling down of gas, in particular air , or from another medium from a device for abrasive processing of piece and / or bulk material or from the interior of a treatment chamber using an evaporator.
  • Devices for abrasive processing of piece and / or bulk material are known in the art. These are used in particular for the cleaning of cast piece and / or bulk material, for example in the form of rubber rings, plastic castings, etc. If they are to be deburred after the casting process due to remaining burrs and nubs etc. on the surface of the rubber parts. These ridges and pimples on the surface of the rubber or plastic parts are embrittled by the action of refrigerant, in particular liquid nitrogen, and separated by blasting medium, which is irradiated or embedded in the treatment chamber, in particular processing drum.
  • Such abrasion devices are for example in the DE 88 10 621 U1 and the DE 34 26 286 C2 described.
  • the DE 10 2005 040 420 A1 such an abrasion device.
  • the workpieces to be abraded are arranged within a processing drum and acted upon by blasting agent through at least one impeller, wherein the processing drum or the interior of the processing drum is previously subjected to cold.
  • an industrial cleaning and / or de-burring apparatus having a drying chamber arrangement for drying a drying chamber which comprises a refrigeration dryer in which a vapor stream extracted from the treatment chamber is cooled.
  • the refrigerant dryer is in operative connection with a vacuum pump.
  • Steam or vapor swirls occurring in the treatment chamber are drawn off into a refrigeration dryer via a first line, the vaporized stream of steam being cooled therein, whereby the liquid contained therein is condensed and thus the steam stream is dehydrated and dried.
  • the refrigerant dryer is connected via a second line with a vacuum pump in operative connection, so that the vapor stream to be cooled from the treatment chamber is sucked into the refrigerant dryer.
  • a device for controlled freezing and deburring of parts in which cold air from a heat exchanger enters the device through a passage opening in a housing and flows towards a manifold located in the housing.
  • the passage opening is located in an outer wall of the device, which is part of an insulated housing.
  • An air flow from the interior of the insulated housing is directed into a separator for separating the waste of reusable blasting media, the air flowing through a conduit in which it is brought into contact with the spent, cooled air that is drawn out of the housing. Both get together through the pipe to a dust collector.
  • a cooling unit is used to cool the air.
  • the DE 1 501 169 A1 discloses a device for cooling and deburring molded parts made of elastomers and thermoplastics, in which a cooling machine is provided with a compressor within a firstdenikfiers. From the refrigerator, cold liquid refrigerant flows through a conduit into a container. At the bottom of the container an outlet is provided, which is connected via a line to the bottom side of one or more heat exchangers. Each of the heat exchangers is provided with cooling coils through which the liquid coolant flows during heat exchange with air or other gases of a secondary cooling circuit. The warmed liquid coolant of the primary circuit leaves the heat exchanger above them to get back through further lines to the chiller.
  • the secondary refrigeration cycle contains a dust collector through which spent cold air is drawn, which is sucked by the deburring machine, where it is separated from the dust.
  • Cold air flows from outlet valves at the bottom of the heat exchangers through lines to the deburring machine and there over or to be manufactured moldings for embrittlement of severed ridges or ribs or thin sections.
  • the present invention is based on the object, a device for abrasive processing of piece and / or bulk material according to the preamble of claim 1 and a method according to the preamble of claim 13 to the effect that the refrigeration device can work more effectively and an undesirable ice formation especially in the interior of the treatment chamber of the apparatus for abrasive processing of piece and / or bulk material can be even better avoided.
  • the object is achieved for a device for abrasive processing of piece and / or bulk material according to the preamble of claim 1, characterized in that at least the evaporator spatially separated from the treatment chamber is arranged and in gas connection with this can be brought, wherein the evaporator or the refrigerating device is arranged with evaporator in a separate chamber, separated from the interior of the device and the treatment chamber, in combination with these brought.
  • the object is achieved in that the chamber disposed on the device inside or outside or arranged on this or introduced or introduced into the device and with this or the treatment chamber in gas connection can be brought or brought, wherein the chamber has an opening as an inlet or suction port and an opening as outlet or blow-off and at least one closure device for closing the inlet or suction port and / or the outlet or blow-out opening and at least one further closure device for opening and closing the chamber are provided and wherein the evaporator in the chamber with respect to the medium or gas or gas connection with respect to the treatment chamber or the interior of the device by the at least one closure means for closing the inlet or suction port and / or the outlet or blow-out opening is partitionable or sealed off.
  • the object is achieved in that the medium, in particular air, sucked from the interior of the device or the interior of the treatment chamber into a chamber, the medium, in particular gas connection between the interior of the device or the Separated inside the treatment chamber and the interior of the chamber, the finallysogene medium heated, defrosted and cooled down in the evaporator, moisture arising from the chamber and the medium, in particular gas connection between the interior of the device or the interior of the treatment chamber and the interior of the chamber again is prepared for flowing the cooled and dried medium into the interior of the device or the interior of the treatment chamber.
  • a device for abrasive processing of piece and / or bulk material in which by the spatial separation of the evaporator from the treatment chamber and this comprehensive inside of the device, the moisture emitted by the evaporator can be kept out of this or the moisture by the refrigeration device can be kept as low as possible in the treatment chamber.
  • the refrigeration device is advantageously arranged in a separate chamber, separate from the interior of the device or the treatment chamber, but in gas communication with this or this.
  • the evaporator can also be arranged separately from the other components of the refrigeration device.
  • the other components of the refrigeration device can even be arranged within the chamber or be, thus only the evaporator sealed off or be provided against the treatment chamber or the interior of the device abschottbar.
  • moist vapors can thus be kept as far as possible away from the treatment chamber.
  • a Moisture-related ice formation, in particular in the treatment chamber for the piece and / or bulk material to be deburred, can thereby be effectively avoided and, as a result, a high performance of the device can be achieved.
  • Such a separate chamber in which the refrigerating device is arranged with evaporator or at least the evaporator can be added as a separate component to the device at a desired location or it can be integrated as a separate chamber in the device or on the indoor and / or. or outside of this can be arranged.
  • the chamber may comprise at least one device for connection to the device.
  • These can be of any desired design, in particular also in the form of quick-release closures, which enable a clamping and / or latching or otherwise connecting the separate chamber with the device for the abrasive processing of piece goods and / or bulk goods.
  • a chamber should be understood here to mean any device in which at least the evaporator can be arranged in a closed position from the treatment chamber or the interior of the device.
  • the chamber should therefore allow a partitioning with respect to the medium or air or gas connection between the treatment chamber or the interior of the device and the evaporator.
  • At least two openings are provided between the interior of the device and the separate chamber, wherein an opening is formed as an inlet or suction opening and an opening as an outlet or outlet opening.
  • the inlet or suction opening and / or the outlet or outlet opening may be provided with at least one filter device.
  • This can the aspirated medium, eg the sucked air and the recirculated air or the recirculated medium are also filtered, so that unwanted suspended matter in the air or the medium in the range of the filter means removed and the medium or air can thus be cleaned, before it is released into the environment and before it enters the interior of the device, in particular the treatment chamber for the abrasive processing of the piece and / or bulk material.
  • At least one closure device is provided for closing the inlet or intake opening and / or the outlet or blow-out opening.
  • the closure device can be arranged pivotably in the region of the inlet or suction opening and / or the outlet or outlet opening.
  • the evaporator is designed so that a high suction negative pressure with respect to the air in the treatment chamber or in the interior of the device can be generated for sucking it with high speed. It is thus not necessary to use a separate pump or other suction means. Rather, it is sufficient to open only the inlet / suction port and operate the evaporator, which then sucks the air from the inside of the device or the treatment chamber by generating a high negative pressure, wherein the suction speed is advantageously very high, so that quick suction is possible.
  • a fan or a function-like device arranged, in particular in the upper region of the device.
  • the evaporator and / or the intake point for air from the device is arranged in comparison to this advantageous further down the device and is used to extract air or gaseous medium.
  • At least one openable and closable closure device can be provided for closing the separate chamber.
  • This is designed in particular in the manner of a swing-open and lockable door, so that the defrosting process, this door or closing device and thus the separate chamber can be closed and opened for subsequent cooling process.
  • the inlet / suction opening is opened, the evaporator sucks the air out of the treatment chamber or the interior of the device for abrasive processing of the piece and / or bulk material, generating a high negative pressure at high speed.
  • the inlet / suction port is closed and thus the evaporator is sealed off from the treatment chamber or the interior of the device.
  • the evaporator or the refrigerating device is thus arranged so that a separation of the treatment chamber or the device can be made in order to cool the air resulting from cooling of the treatment chamber or keep away from the interior of the device.
  • Evaporator or refrigeration device can be arranged outside and / or inside the device or be.
  • FIG. 1 shows a perspective view of a device 1 for abrasive processing of piece and / or bulk material 3 with a treatment chamber 2, which is formed as a drum and with the deburred in FIG. 1 merely indicated piece and bulk material 3 is filled.
  • the treatment chamber 2 or the piece and bulk material is subjected to cold.
  • a refrigerating device 5 outside the treatment chamber 2 is disposed on the outside of the abrasive processing apparatus 1.
  • the chamber 4 may be integrally formed with the device 1 or attached thereto as an additional part.
  • FIG. 1 it is fixedly mounted on the housing 13 of the device 1. In principle, it can also be arranged on the inside of the housing 13, that is to say inside the device 1.
  • the chamber 4 is provided with a closure door 40 which is openable and closable.
  • the refrigeration device 5 is arranged, which comprises an evaporator 6, which, however, is only indicated.
  • Both openings are provided with a respective filter means 70, 80 in the form of lattices to remove suspended particles from the air sucked from the interior of the apparatus and before the air is blown out into the apparatus Inner 12 of the device 1 or the interior 20 of the treatment chamber 2 to filter out.
  • a closure device 11 is arranged on the housing wall 10, which is pivotally mounted on the housing wall 10.
  • This closure device 11 is formed long oval and can close both openings 7, 8 individually or together.
  • the attachment points 14 are arranged above, but vertically between the two openings 7, 8. In the in FIG. 3 As shown, it leaves both openings 7, 8 open, but by simply pivoting only one or both openings 7, 8 can be closed by them.
  • the shutter door 40 is omitted for the sake of clarity of illustration. This is usually also present, however, compared to the execution in FIG. 2 posted on the left side. There are therefore provided hinges 41. On the opposite side of the chamber 4, a locking device 42 is provided for the closure door 40.
  • the evaporator 6 serves to draw in air from the interior 12 of the device 1, in particular from the interior 20 of the treatment chamber 2.
  • the evaporator generates a negative pressure in the interior of the device or the treatment chamber (see arrow P1 in FIG FIG. 1 ) and thereby can out the air suck it, which is caused by a high vacuum high suction speed, the air can thus be quickly removed from the interior of the device 1 and the interior 20 of the treatment chamber 2.
  • the two openings 7, 8, closed After aspirating the air from the interior of the device or the treatment chamber, the two openings 7, 8, closed.
  • the absorbed air is heated and subsequently defrosted.
  • For defrosting also closes the door 40 of the chamber 4 is closed.
  • the air in the chamber is cooled down and removed the resulting and resulting humidity from the chamber 4 in particular by opening the lock door 40.
  • the closure door 40 of the chamber 4 is closed again, the outlet opening 7 is opened by corresponding pivoting of the closure device 11, that is, the chamber again coupled to the interior of the device or gas-connected thereto, and the air into the interior 12 of the device or the Inner 20 of the treatment chamber 2 returned (see arrow P2 in FIG. 1 ).
  • suction being preferred instead of opening the closing door 40 in order to remove the moisture from the chamber 4.
  • the moisture produced in the refrigeration which arises in particular in the region of the evaporator, be kept out of the processing device.
  • the cooling of the interior of the device and in particular of the treatment chamber can therefore be controlled particularly well, wherein the defrosting can be carried out separately from the interior of the device and the treatment chamber and there is no risk that resulting moisture in the interior of the device 1 and ., the treatment chamber 2 passes.
  • the evaporator as a suction device for sucking the air from the interior of the device or
  • the treatment chamber is also a particularly simple, thereby inexpensive and quick suction of air without further aids possible.
  • the evaporator is arranged separable with respect to the gas connection to the interior of the treatment chamber or the device, can be arranged inside or outside the device.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Claims (11)

  1. Dispositif (1) servant au traitement abrasif de pièces et/ou de produits en vrac (3), comprenant au moins une chambre de traitement (2) servant à usiner les pièces et/ou les produits en vrac (3), sachant qu'au moins un système de production de froid (5) pourvu d'un évaporateur (6) est prévu afin de refroidir au moins la chambre de traitement (2) et/ou les produits en vrac et/ou les pièces (3),
    caractérisé en ce
    qu'au moins l'évaporateur (6) est disposé de manière spatialement séparée de la chambre de traitement (2) et peut être amené en communication gazeuse avec celle-ci et/ou avec l'intérieur (12) du dispositif (1), sachant que l'évaporateur (6) ou le système de production de froid (5) pourvu de l'évaporateur (6) est disposé dans une chambre (4) séparée, séparément de l'intérieur (12, 20) du dispositif (1) et de la chambre de traitement (2), et peut être amené en communication gazeuse avec ceux-ci.
  2. Dispositif (1) selon la revendication 1,
    caractérisé en ce
    qu'au moins deux ouvertures (7, 8) sont prévues entre l'intérieur (12) du dispositif (1) et/ou l'intérieur (20) de la chambre de traitement (2) et la chambre (4) séparée, sachant qu'une ouverture est réalisée sous la forme d'une ouverture d'entrée ou d'aspiration (7) et qu'une ouverture est réalisée sous la forme d'une ouverture de sortie ou de purge (8).
  3. Dispositif (1) selon la revendication 2,
    caractérisé en ce
    que l'ouverture d'entrée ou d'aspiration (7) et/ou l'ouverture de sortie ou de purge (8) sont pourvues d'au moins un système de filtrage (70, 80).
  4. Dispositif (1) selon la revendication 2 ou 3,
    caractérisé en ce
    qu'au moins un système de fermeture (11) est prévu afin de fermer l'ouverture d'entrée ou d'aspiration (7) et/ou l'ouverture de sortie ou de purge (8).
  5. Dispositif (1) selon la revendication 4,
    caractérisé en ce
    que le système de fermeture (11) est disposé de manière à pouvoir pivoter dans la zone de l'ouverture d'entrée ou d'aspiration (7) et/ou de l'ouverture de sortie ou de purge (8).
  6. Dispositif (1) selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    qu'au moins un système de fermeture (40) pouvant être ouvert et fermé est prévu afin de fermer la chambre (4) séparée.
  7. Dispositif (1) selon le préambule de la revendication 1 ou selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    que l'évaporateur (6) est réalisé sous la forme d'un système d'aspiration servant à aspirer l'air de la chambre de traitement (2) ou de l'intérieur (12) du dispositif (1).
  8. Dispositif (1) selon la revendication 7,
    caractérisé en ce
    que l'évaporateur (6) est réalisé de telle manière qu'une dépression à aspiration importante par rapport au milieu dans la chambre de traitement (2) et/ou au milieu à l'intérieur (12) du dispositif (1) peut être produite afin d'évacuer par aspiration celui-ci à une vitesse importante.
  9. Chambre (4) comprenant au moins un système de production de froid (5) pourvu d'un évaporateur (6) servant à refroidir au moins une chambre de traitement (2) et/ou les pièces et/ou les produits en vrac (3) d'un dispositif (1) servant au traitement abrasif de pièces et/ou de produits en vrac (3),
    caractérisée en ce
    que la chambre (4) peut être disposée à l'intérieur ou à l'extérieur au niveau du dispositif (1) ou est disposée au niveau de celui-ci et/ou peut être introduite ou est introduite dans le dispositif et peut être amenée ou est amenée en communication gazeuse avec celui-ci ou la chambre de traitement (2), sachant que la chambre (4) présente une ouverture réalisée sous la forme d'un ouverture d'entrée ou d'aspiration (7) et une ouverture réalisée sous la forme d'une ouverture de sortie ou de purge (8) et au moins un système de fermeture (11) servant à fermer l'ouverture d'entrée ou d'aspiration (7) et/ou l'ouverture de sortie ou de purge (8) et au moins un autre système de fermeture (40) servant à ouvrir et à fermer la chambre (4) sont prévus, et sachant que l'évaporateur (6) dans la chambre (4) peut être isolée ou est isolé par rapport à la communication fluidique ou pneumatique ou gazeuse par rapport à la chambre de traitement (2) ou à l'intérieur du dispositif (1), par le système de fermeture (11) au moins au nombre de un servant à fermer au moins l'ouverture d'entrée ou d'aspiration (7) et/ou au moins l'ouverture de sortie ou de purge (8).
  10. Chambre (4) selon la revendication 9,
    caractérisée en ce
    que la chambre présente au moins un système destiné à la liaison au dispositif (1).
  11. Procédé servant à refroidir du gaz, en particulier de l'air ou un autre milieu, provenant d'un dispositif (1) servant au traitement abrasif de pièces et/ou de produits en vrac (3) ou provenant de l'intérieur d'une chambre de traitement (2), en utilisant un évaporateur (6),
    caractérisé en ce
    - que le milieu, en particulier l'air, est aspiré de l'intérieur du dispositif (1) ou de l'intérieur de la chambre de traitement (2) dans une chambre (4),
    - que la communication fluidique entre l'intérieur du dispositif (1) ou l'intérieur de la chambre de traitement (2) et l'intérieur de la chambre (4) est coupée,
    - que le milieu aspiré est chauffé, dégivré et refroidi dans l'évaporateur (6),
    - que l'humidité en résultant est éliminée de la chambre (4) et
    - que la communication fluidique entre l'intérieur du dispositif (1) ou l'intérieur de la chambre de traitement (2) et l'intérieur de la chambre (4) est rétablie afin de faire affluer le milieu refroidi et séché à l'intérieur du dispositif (1) ou à l'intérieur de la chambre de traitement (2).
EP12000592.1A 2011-01-28 2012-01-30 Procédé de traitement abrasif de pièce et/ou marchandise en vrac à l'aide d'un dispositif de production de froid et procédé de refroidissement de gaz à partir de celui-ci Active EP2481524B8 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202011002098U DE202011002098U1 (de) 2011-01-28 2011-01-28 Vorrichtung zum abrasiven Bearbeiten von Stück- und/oder Schüttgut mit Kälteerzeugungseinrichtung

Publications (3)

Publication Number Publication Date
EP2481524A1 EP2481524A1 (fr) 2012-08-01
EP2481524B1 true EP2481524B1 (fr) 2015-09-23
EP2481524B8 EP2481524B8 (fr) 2015-12-09

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EP12000592.1A Active EP2481524B8 (fr) 2011-01-28 2012-01-30 Procédé de traitement abrasif de pièce et/ou marchandise en vrac à l'aide d'un dispositif de production de froid et procédé de refroidissement de gaz à partir de celui-ci

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EP (1) EP2481524B8 (fr)
DE (1) DE202011002098U1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1479859A1 (de) * 1964-05-12 1969-05-22 Wheelabrator Corp Vorrichtung zum Kuehlen und Entgraten von Formteilen aus Elastomeren und thermoplastischen Kunststoffen

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3276219A (en) * 1964-04-29 1966-10-04 Wheelabrator Corp Refrigeration system for cold vapor blast
DE3426286A1 (de) 1984-07-17 1986-01-30 Dietmar 5960 Olpe Wacker Vorrichtung zum entgraten von werkstuecken aus kaelteversproedbaren werkstoffen
DE8810621U1 (de) 1988-08-22 1988-10-20 Wacker, Dietmar, 5960 Olpe Strahlmaschine
DE202005021912U1 (de) 2005-08-25 2011-05-12 Wacker, Dietmar Abrasionsvorrichtung
DE102009009782A1 (de) 2009-02-20 2010-08-26 Dietmar Wacker Vorrichtung zum abrasiven Behandeln von Stück- und/oder Schüttgut
DE202009014159U1 (de) 2009-10-19 2010-04-01 Zippel Gmbh & Co. Kg Maschinenfabrik Trocknungsanordnung, insbesondere für industrielle Reinigungs- und Entgratungsvorrichtungen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1479859A1 (de) * 1964-05-12 1969-05-22 Wheelabrator Corp Vorrichtung zum Kuehlen und Entgraten von Formteilen aus Elastomeren und thermoplastischen Kunststoffen

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EP2481524B8 (fr) 2015-12-09
EP2481524A1 (fr) 2012-08-01

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