EP2481524B1 - Method for abrasive processing of bulk material with cooling device and method for cooling gas from same - Google Patents

Method for abrasive processing of bulk material with cooling device and method for cooling gas from same 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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EP
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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)
French (fr)
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EP2481524B8 (en
EP2481524A1 (en
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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)

Description

Die Erfindung betrifft eine Vorrichtung zum abrasiven Bearbeiten von Stück- und/oder Schüttgut, mit zumindest einer Behandlungskammer zum Bearbeiten des Stück- und/oder Schüttguts, wobei zumindest eine Kälteerzeugungseinrichtung mit Verdampfer zum Abkühlen zumindest der Behandlungskammer und/oder des Stück- und/oder Schüttguts vorgesehen ist, eine Kammer mit zumindest einer Kälteerzeugungseinrichtung mit Verdampfer zum Abkühlen zumindest einer Behandlungskammer und/oder des Stück- und/oder Schüttguts einer solchen Vorrichtung zum abrasiven Bearbeiten von Stück- und/oder Schüttgut sowie ein Verfahren zum Herunterkühlen von Gas, insbesondere Luft, oder aus einem anderen Medium aus einer Vorrichtung zum abrasiven Bearbeiten von Stück- und/oder Schüttgut oder aus dem Inneren einer Behandlungskammer unter Verwendung eines Verdampfers.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.

Vorrichtungen zum abrasiven Bearbeiten von Stück- und/oder Schüttgut sind im Stand der Technik bekannt. Diese werden insbesondere zum Reinigen von gussgefertigtem Stück- und/oder Schüttgut, beispielsweise in Form von Gummiringen, Kunststoffgussteilen etc. verwendet. Wenn diese nach dem Gussvorgang aufgrund von verbliebenen Graten und Noppen etc. auf der Oberfläche der Gummiteile entgratet werden sollen. Diese Grate und Noppen auf der Oberfläche der Gummi- bzw. Kunststoffteile werden durch Einwirken von Kältemittel, insbesondere flüssigem Stickstoff, versprödet und durch Strahlmittel, das in die Behandlungskammer, insbesondere Bearbeitungstrommel, eingestrahlt oder eingebacht wird, abgetrennt. Derartige Abrasionsvorrichtungen sind beispielsweise in der DE 88 10 621 U1 und der DE 34 26 286 C2 beschrieben. Ebenfalls offenbart die DE 10 2005 040 420 A1 eine solche Abrasionsvorrichtung. Bei dieser werden die abrasiv zu behandelnden Werkstücke innerhalb einer Bearbeitungstrommel angeordnet und mit Strahlmittel durch zumindest ein Schleuderrad beaufschlagt, wobei die Bearbeitungstrommel oder das Innere der Bearbeitungstrommel zuvor mit Kälte beaufschlagt wird.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. Also discloses the DE 10 2005 040 420 A1 such an abrasion device. In this, 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.

Entsprechend der DE 10 2009 009 782 A1 ragt in das Gehäuse der Vorrichtung zum abrasiven Behandeln von Stück- und/oder Schüttgut eine Stickstoffsprüheinrichtung hinein, die der Kältebeaufschlagung des Inneren des Gehäuses zum Verspröden der von dem Stück- und/oder Schüttgut abzuschlagenden Grate und Noppen etc. dient.According to the DE 10 2009 009 782 A1 protrudes into the housing of the apparatus for the abrasive treatment of piece and / or bulk a nitrogen spray into it, which serves the refrigeration of the interior of the housing for embrittlement of the piece and / or bulk material to be cut off burrs and nubs.

Aus der DE 20 2009 014 159 U1 ist eine Trocknungsanordnung für eine Behandlungskammer aufweisende industrielle Reinigungs- und/oder Entgratungsvorrichtungen bekannt, die einen Kältetrockner umfasst, in dem ein von der Behandlungskammer abgesaugter Dampfstrom gekühlt wird. Zum Absaugen des Dampfstroms aus der Behandlungskammer steht der Kältetrockner mit einer Vakuumpumpe in Wirkverbindung. Durch die Trocknungsanordnung soll die bei der Reinigung entstehende Feuchtigkeit in Form von Dämpfen bzw. Dampfschwaden nach der Reinigung der entgrateten Bauteile der Behandlungskammer durch Absaugen entzogen werden. In der Behandlungskammer auftretende Dampfe bzw. Dampfschwaden werden über eine erste Leitung in einen Kältetrockner abgesogen, der abgesogene Dampfstrom in diesem gekühlt, wodurch die darin enthaltene Flüssigkeit kondensiert und damit der Dampfstrom entwässert und getrocknet wird. Der Kältetrockner steht über eine zweite Leitung mit einer Vakuumpumpe in Wirkverbindung, so dass der zu kühlende Dampfstrom aus der Behandlungskammer in den Kältetrockner gesogen wird.From the DE 20 2009 014 159 U1 For example, an industrial cleaning and / or de-burring apparatus having a drying chamber arrangement for drying a drying chamber is known which comprises a refrigeration dryer in which a vapor stream extracted from the treatment chamber is cooled. For sucking off the steam flow from the treatment chamber, the refrigerant dryer is in operative connection with a vacuum pump. By the drying arrangement, the resulting moisture during the cleaning in the form of vapors or vapor swaths should be removed by suction after cleaning the deburred components of the treatment chamber. 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.

Aus der US 3,279,125 A und der hierzu parallelen DE 1 479 859 A1 ist eine Vorrichtung zum kontrollierten Vereisen und Entgraten von Teilen bekannt, bei der kalte Luft aus einem Wärmetauscher in die Vorrichtung durch eine Durchlassöffnung in ein Gehäuse eintritt und in Richtung zu einem Verteiler, der in dem Gehäuse angeordnet ist, strömt. Die Durchlassöffnung befindet sich In einer äußeren Wandung der Vorrichtung, die Teil eines isolierten Gehäuses ist. Ein Luftstrom aus dem Inneren des isolierten Gehäuses wird in eine Trenneinrichtung zum Trennen des Abfalls von wiederverwendbarem Strahlmittel geleitet, wobei die Luft durch eine Leitung strömt, in der sie mit der verbrauchten gekühlten Luft zusammengebracht wird, die aus dem Gehäuse abgesogen wird. Beide gelangen zusammen durch die Leitung zu einem Staubsammler. Um die Temperatur der Luft in dem isolierten Gehäuse in einem gekühlten Zustand zu halten, so dass nur trockene Luft mit einem geringen Taupunkt in das Gehäuse eingeführt wird, wird eine Kühleinheit zum Kühlen der Luft verwendet.From the US 3,279,125 A and the parallel DE 1 479 859 A1 For example, a device for controlled freezing and deburring of parts is known 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. To the To maintain the temperature of the air in the insulated housing in a cooled state so that only dry air with a low dew point is introduced into the housing, a cooling unit is used to cool the air.

Die DE 1 501 169 A1 offenbart eine Vorrichtung zum Kühlen und Entgraten von Formteilen aus Elastomeren und thermoplastischen Kunststoffen, bei der innerhalb eines ersten Kühlkreisfaufs eine Kühlmaschine mit einem Verdichter vorgesehen ist. Von der Kühlmaschine strömt kaltes flüssiges Kühlmittel durch eine Leitung in einen Behälter. Am Boden des Behälters ist ein Auslass vorgesehen, der über eine Leitung mit der Bodenseite eines oder mehrerer Wärmeaustauscher verbunden ist. Jeder der Wärmeaustauscher ist mit Kühlschlangen versehen, durch welche das flüssige Kühlmittel beim Wärmeaustausch mit Luft oder anderen Gasen eines sekundären Kühlkreislaufs fließt. Das angewärmte flüssige Kühlmittel des Primärkreislaufs verlässt die Wärmetauscher oberhalb von diesen, um durch weitere Leitungen zu der Kühlmaschine zurück zu gelangen. Der sekundäre Kühlkreislauf enthält einen Staubabscheider, durch den verbrauchte kalte Luft hindurchgeleitet wird, die von der Entgratungsmaschine angesogen wird, und die dort vom Staub getrennt wird. Kalte Luft strömt aus Auslassventilen am Boden der Wärmetauscher durch Leitungen zur Entgratungsmaschine und dort über oder durch herzustellende Formteile zum Verspröden von abzutrennenden Graten oder Rippen bzw. dünnen Abschnitten.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 first Kühlkreisfaufs. 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.

Der vorliegenden Erfindung liegt nun die Aufgabe zugrunde, eine Vorrichtung zum abrasiven Bearbeiten von Stück- und/oder Schüttgut nach dem Oberbegriff des Anspruchs 1 und ein Verfahren nach dem Oberbegriff des Anspruchs 13 dahingehend fortzubilden, dass die Kälteerzeugungseinrichtung noch wirkungsvoller arbeiten kann und eine unerwünschte Eisbildung insbesondere im Inneren der Behandlungskammer der Vorrichtung zum abrasiven Bearbeiten von Stück- und/oder Schüttgut noch besser vermieden werden kann.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.

Die Aufgabe wird für eine Vorrichtung zum abrasiven Bearbeiten von Stück- und/oder Schüttgut nach dem Oberbegriff des Anspruchs 1 dadurch gelöst, dass zumindest der Verdampfer räumlich getrennt von der Behandlungskammer angeordnet und in Gasverbindung mit dieser bringbar ist, wobei der Verdampfer oder die Kälteerzeugungseinrichtung mit Verdampfer in einer separaten Kammer angeordnet ist, getrennt von dem Inneren der Vorrichtung und der Behandlungskammer, in Gasverbindung mit diesen bringbar. Für eine Kammer mit zumindest einer Kälteerzeugungseinrichtung mit Verdampfer nach dem Oberbegriff des Anspruchs 9 wird die Aufgabe dadurch gelöst, dass die Kammer an der Vorrichtung innen oder außen anordbar oder an dieser angeordnet oder in die Vorrichtung einbringbar oder eingebracht und mit dieser oder der Behandlungskammer in Gasverbindung bringbar oder gebracht ist, wobei die Kammer eine Öffnung als Einlass- oder Ansaugöffnung und eine Öffnung als Auslass- oder Ausblasöffnung aufweist und zumindest eine Verschlusseinrichtung zum Verschließen der Einlass- oder Ansaugöffnung und/oder der Auslass- oder Ausblasöffnung und zumindest eine weitere Verschlusseinrichtung zum Öffnen und Verschließen der Kammer vorgesehen sind und wobei der Verdampfer in der Kammer bezüglich der Medium- bzw. Luft- oder Gasverbindung gegenüber der Behandlungskammer oder dem Inneren der Vorrichtung durch die zumindest eine Verschlusseinrichtung zum Verschließen der Einlass- oder Ansaugöffnung und/oder der Auslass- oder Ausblasöffnung abschottbar oder abgeschottet ist. Für ein Verfahren nach dem Oberbegriff des Anspruchs 11 wird die Aufgabe dadurch gelöst, dass das Medium, insbesondere Luft, aus dem Inneren der Vorrichtung oder dem Inneren der Behandlungskammer in eine Kammer abgesogen, die Medium-, insbesondere Gasverbindung zwischen dem Inneren der Vorrichtung oder dem Inneren der Behandlungskammer und dem Inneren der Kammer getrennt, das abgesogene Medium aufgeheizt, abgetaut und im Verdampfer heruntergekühlt, entstehende Feuchtigkeit aus der Kammer entfernt und die Medium-, insbesondere Gasverbindung zwischen dem Inneren der Vorrichtung oder dem Inneren der Behandlungskammer und dem Inneren der Kammer wieder hergestellt wird zum Einströmen des heruntergekühlten und getrockneten Mediums in das Innere der Vorrichtung oder das Innere der Behandlungskammer. Weiterbildungen der Erfindung sind in den abhängigen Ansprüchen definiert.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. For a chamber with at least one refrigeration device with evaporator according to the preamble of claim 9, 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. For a method according to the preamble of claim 11, 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 abgesogene 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. Further developments of the invention are defined in the dependent claims.

Dadurch wird eine Vorrichtung zum abrasiven Bearbeiten von Stück- und/oder Schüttgut vorgesehen, bei der durch das räumliche Trennen des Verdampfers von der Behandlungskammer sowie dem diese umfassenden Innern der Vorrichtung die von dem Verdampfer abgegebene Feuchtigkeit aus dieser herausgehalten werden kann bzw. der Feuchtigkeitseintrag durch die Kälteerzeugungseinrichtung in die Behandlungskammer so gering wie möglich gehalten werden kann. Die Kälteerzeugungseinrichtung wird vorteilhaft in einer separaten Kammer angeordnet, getrennt von dem Inneren der Vorrichtung bzw. der Behandlungskammer, jedoch in Gasverbindung mit dieser bzw. diesem. Gegebenenfalls kann der Verdampfer auch getrennt von den anderen Komponenten der Kälteerzeugungseinrichtung angeordnet werden. Die übrigen Komponenten der Kälteerzeugungseinrichtung können dabei sogar innerhalb der Kammer angeordnet werden oder sein, somit lediglich der Verdampfer abgeschottet oder abschottbar gegenüber der Behandlungskammer bzw. dem Inneren der Vorrichtung vorgesehen werden. Gerade die beim Betrieb der Kälteerzeugungseinrichtung entstehenden feuchten Dämpfe können somit von der Behandlungskammer so gut wie möglich fern gehalten werden. Eine feuchtigkeitsbedingte Eisbildung insbesondere in der Behandlungskammer für das zu entgratende Stück- und/oder Schüttgut kann hierdurch effektiv vermieden und hierdurch eine hohe Leistung der Vorrichtung erzielt werden.Thereby, a device for abrasive processing of piece and / or bulk material is provided, 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. Optionally, 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. Especially the resulting during operation of the refrigeration device 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.

Eine solche separate Kammer, in der die Kälteerzeugungseinrichtung mit Verdampfer bzw. zumindest der Verdampfer angeordnet wird, kann als separates Bauteil an die Vorrichtung an einer gewünschten Stelle angefügt werden oder sie kann als getrennte Kammer in die Vorrichtung integriert bzw. auf der Innen-und/oder Außenseite von dieser angeordnet werden. Zum Befestigen an der Vorrichtung kann die Kammer zumindest eine Einrichtung zum Verbinden mit der Vorrichtung aufweisen. Diese können beliebig ausgebildet sein, insbesondere auch in Form von Schnellverschlüssen, die ein klemmendes und/oder verrastendes oder anderweitiges Verbinden der separaten Kammer mit der Vorrichtung zum abrasiven Bearbeiten von Stück- und/oder Schüttgut ermöglichen. Unter einer Kammer soll hier eine beliebig gestaltete Einrichtung verstanden werden, in der zumindest der Verdampfer abgeschlossen von der Behandlungskammer bzw. dem Inneren der Vorrichtung angeordnet werden kann. Die Kammer soll also eine Abschottung bezüglich der Medium- bzw. Luft-oder Gasverbindung zwischen der Behandlungskammer bzw. dem Inneren der Vorrichtung und dem Verdampfer ermöglichen.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. For attachment to the device, 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.

Vorteilhaft sind zwischen dem Inneren der Vorrichtung und der separaten Kammer zumindest zwei Öffnungen vorgesehen, wobei eine Öffnung als Einlass-oder Ansaugöffnung und eine Öffnung als Auslass- oder Ausblasöffnung ausgebildet ist. Hierdurch ist somit das Ansaugen von Luft aus dem Inneren der Vorrichtung bzw. Inneren der Behandlungskammer in die separate Kammer möglich und nach dem Behandeln der abgesogenen Luft in der separaten Kammer durch Einwirken der Kälteerzeugungseinrichtung bzw. des Verdampfers ein Rückführen des kalten Mediums bzw. des gasförmigen Mediums bzw. Gases, insbesondere der Luft, in das Innere der Vorrichtung, insbesondere der Behandlungskammer.Advantageously, 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. As a result, the suction of air from the interior of the device or the interior of the treatment chamber into the separate chamber is thus possible and after treating the absorbed air in the separate chamber by the action of the refrigeration device or the evaporator, a return of the cold medium or the gaseous Medium or gas, in particular the air, in the interior of the device, in particular the treatment chamber.

Die Einlass- oder Ansaugöffnung und/oder die Auslass- oder Ausblasöffnung kann/können mit zumindest einer Filtereinrichtung versehen sein. Hierdurch kann das angesogene Medium, z.B. die angesogene Luft und die wieder zurückgeführte Luft bzw. das zurückgeführte Medium ebenfalls gefiltert werden, so dass unerwünschte Schwebstoffe in der Luft bzw. dem Medium im Bereich der Filtereinrichtungen entfernt und die das Medium bzw. Luft somit gereinigt werden kann, bevor es bzw. sie in die Umgebung abgegeben wird und bevor es bzw. sie in das Innere der Vorrichtung, insbesondere der Behandlungskammer für das abrasive Bearbeiten des Stück- und/oder Schüttgut, gelangt.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.

Weiter vorteilhaft ist zumindest eine Verschlusseinrichung zum Verschließen der Einlass- oder Ansaugöffnung und/oder der Auslass- oder Ausblasöffnung vorgesehen. Die Verschlusseinrichtung kann schwenkbar im Bereich der Einlass-oder Ansaugöffnung und/oder der Auslass- oder Ausblasöffnung angeordnet sein. Durch eine solche Verschlusseinrichtung können wechselseitig Einlass-/Ansaugöffnung bzw. Auslass-/Ausblasöffnung geöffnet und verschlossen werden, so dass zunächst nur ein Ansaugen durch die geöffnete Einlass-/Ansaugöffnung ermöglicht wird, das Medium bzw. die Luft in der separaten Kammer entsprechend behandelt werden kann bei verschlossenen Einlass- und Auslassöffnungen und zum Zurückführen in die Vorrichtung bzw. die Behandlungskammer nur die Auslass-/ Ausblasöffnung wieder geöffnet werden kann.Further advantageously, 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. Through such a closure device reciprocally inlet / suction or discharge / blow-out can be opened and closed, so that initially only a suction through the open inlet / suction is made possible, the medium or the air in the separate chamber are treated accordingly For closed inlet and outlet openings and for returning to the device or the treatment chamber, only the outlet / blow-out can be opened again.

Als besonders vorteilhaft erweist es sich, den Verdampfer als Saugeinrichtung zum Ansaugen des gasförmigen Mediums bzw. der Luft aus der Behandlungskammer oder dem Inneren der Vorrichtung auszubilden. Insbesondere ist der Verdampfer so ausgebildet, dass ein hoher saugender Unterdruck bezüglich der Luft in der Behandlungskammer bzw. im Inneren der Vorrichtung erzeugbar ist zum Absaugen von dieser mit hoher Geschwindigkeit. Es ist somit nicht erforderlich, eine separate Pumpe oder ein anderes Mittel zum Absaugen zu verwenden. Es ist vielmehr ausreichend, lediglich die Einlass-/Ansaugöffnung zu öffnen und den Verdampfer zu betreiben, der dann die Luft aus dem Inneren der Vorrichtung bzw. der Behandlungskammer absaugt durch Erzeugen eines hohen Unterdrucks, wobei die Absauggeschwindigkeit vorteilhaft sehr hoch ist, so dass ein schnelles Absaugen möglich ist. Im Inneren der Vorrichtung wird vorteilhaft ein Ventilator oder eine funktionsähnliche Einrichtung angeordnet, insbesondere im oberen Bereich der Vorrichtung. Der Verdampfer und/oder die Ansaugstelle für Luft aus der Vorrichtung wird im Vergleich hierzu vorteilhaft weiter unten an der Vorrichtung angeordnet und dient dem Herausziehen von Luft bzw. gasförmigem Medium. Durch das Ansaugen der kalten Luft bzw. des kalten Mediums aus der Vorrichtung bzw. der Behandlungskammer kommt es zu einem kurzfristigen Temperaturabfall in der separaten Kammer.It proves to be particularly advantageous to form the evaporator as a suction device for sucking the gaseous medium or the air from the treatment chamber or the interior of the device. In particular, 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. Inside the device is advantageously 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. By sucking the cold air or the cold medium from the device or the treatment chamber, there is a short-term drop in temperature in the separate chamber.

Weiter vorteilhaft kann zumindest eine öffen- und verschließbare Verschlusseinrichtung zum Verschließen der separaten Kammer vorgesehen sein. Diese ist insbesondere nach Art einer aufschwenkbaren und verriegelbaren Tür ausgebildet, so dass zum Abtauvorgang diese Tür bzw. Verschlusseinrichtung und somit die separate Kammer verschlossen und zum nachfolgenden Abkühlvorgang geöffnet werden kann. Nach dem Schließen der Verschlusseinrichtung wird die Einlass-/Ansaugöffnung geöffnet, der Verdampfer saugt unter Erzeugen eines hohen Unterdrucks mit hoher Geschwindigkeit die Luft aus der Behandlungskammer bzw. dem Inneren der Vorrichtung zum abrasiven Bearbeiten des Stück- und/oder Schüttguts ab. Nachfolgend wird die Einlass-/Ansaugöffnung geschlossen und somit der Verdampfer von der Behandlungskammer bzw. dem Inneren der Vorrichtung abgeschottet. Es folgt ein Aufheizen der aus dem Inneren der Vorrichtung bzw. der Behandlungskammer abgesogenen Luft, gefolgt von einem Abtauvorgang und einem Herunterkühlen der Luft an dem Verdampfer. Erst im Anschluss daran wird wieder eine Gasverbindung zum Inneren der Vorrichtung bzw. der Behandlungskammer hergestellt. Da beim Abtauen der Luft Kondensat entsteht, wird die Tür bzw. Verschlusseinrichtung der separaten Kammer geöffnet, um die in der separaten Kammer entstandene Feuchtigkeit aus dieser zu entfernen und die enthaltene Luft abzukühlen, bevor die Verschlusseinrichtung bzw. Tür und somit die gesamte separate Kammer wieder geschlossen wird, die Auslass- oder Ausblasöffnung geöffnet werden und die Luft wieder in das Innere der Vorrichtung bzw. die Behandlungskammer zurückgeleitet wird. Der Verdampfer bzw. die Kälteerzeugungseinrichtung ist somit so angeordnet, dass ein Trennen von der Behandlungskammer bzw. der Vorrichtung vorgenommen werden kann, um beim Abkühlen der Luft entstehende Feuchtigkeit aus der Behandlungskammer bzw. dem Inneren der Vorrichtung fernzuhalten. Verdampfer bzw. Kälteerzeugungseinrichtung können dabei außerhalb und/oder innerhalb der Vorrichtung angeordnet sein bzw. werden.Further advantageously, 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. After closing the closure device, 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. Subsequently, the inlet / suction port is closed and thus the evaporator is sealed off from the treatment chamber or the interior of the device. This is followed by heating of the air sucked from the inside of the device or the treatment chamber, followed by a defrosting operation and a cooling down of the air at the evaporator. Only then is a gas connection to the interior of the device or the treatment chamber produced again. As condensate is created during air defrost, the door or shutter of the separate compartment is opened to remove moisture from the separate compartment and cool the contained air before the door closes and thus the entire separate compartment re-closes is closed, the outlet or blow-out opening are opened and the air is returned to the interior of the device or the treatment chamber. 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.

Zur näheren Erläuterung der Erfindung wird im Folgenden ein Ausführungsbeispiel von dieser näher anhand der Zeichnungen beschrieben. Diese zeigen in:

Figur 1
eine Seitenansicht einer erfindungsgemäß ausgebildeten Vorrichtung zum abrasiven Bearbeiten von Stück- und/oder Schüttgut,
Figur 2
eine um 90 ° gedrehte Seitenansicht der Vorrichtung gemäß Figur 1 mit Draufsicht auf eine erfindungsgemäße Kammer mit Kälteerzeugungseinrichtung, deren Verschlusstür geöffnet ist,
Figur 3
eine Detailansicht einer erfindungsgemäßen Kammer mit Kälteerzeugungseinrichtung und Einlass- sowie Auslassöffnung in das Innere einer Vorrichtung zum abrasiven Bearbeiten von Stück-und/oder Schüttgut.
For a more detailed explanation of the invention, an embodiment of this will be described in more detail below with reference to the drawings. These show in:
FIG. 1
a side view of an inventive device for abrasive processing of piece and / or bulk,
FIG. 2
a rotated by 90 ° side view of the device according to FIG. 1 with a plan view of a chamber according to the invention with a refrigeration device whose closure door is open,
FIG. 3
a detailed view of a chamber according to the invention with refrigeration device and inlet and outlet opening into the interior of a device for abrasive processing of piece and / or bulk material.

Figur 1 zeigt eine perspektivische Ansicht einer Vorrichtung 1 zum abrasiven Bearbeiten von Stück- und/oder Schüttgut 3 mit einer Behandlungskammer 2, die als Trommel ausgebildet und mit dem zu entgratenden, in Figur 1 lediglich angedeuteten Stück- und Schüttgut 3 befüllt ist. Um die zu entfernenden Grate und Noppen des Stück- und Schüttguts 3 zu verspröden, wird die Behandlungskammer 2 bzw. das Stück- und Schüttgut mit Kälte beaufschlagt. Zu diesem Zweck ist eine Kälteerzeugungseinrichtung 5 außerhalb der Behandlungskammer 2 außenseitig an der Vorrichtung 1 zum abrasiven Bearbeiten angeordnet. Die Kammer 4 kann einteilig mit der Vorrichtung 1 ausgebildet oder als zusätzliches Teil an diese angefügt sein. In Figur 1 ist sie an dem Gehäuse 13 der Vorrichtung 1 fest montiert. Sie kann grundsätzlich auch auf der Innenseite des Gehäuses 13, also im Inneren der Vorrichtung 1 angeordnet werden. 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. To embrittle the burrs and nubs to be removed of the piece and bulk material 3, the treatment chamber 2 or the piece and bulk material is subjected to cold. For this purpose, 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. In 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.

Wie besser Figur 2 entnommen werden kann, ist die Kammer 4 mit einer Verschlusstür 40 versehen, die öffen- und schließbar ist. Im Inneren der Kammer 4 ist die Kälteerzeugungseinrichtung 5 angeordnet, die einen Verdampfer 6 umfasst, der allerdings lediglich angedeutet ist. Die Gehäusewandung 10 der Vorrichtung 1, hinter der sich das Innere 12 der Vorrichtung 1 sowie das Innere 20 der Behandlungskammer 2 befindet, ist mit zwei Öffnungen versehen, wie besonders gut den Figuren 2 und 3 entnommen werden kann. Die eine Öffnung ist als Einlassöffnung 7 ausgebildet und die andere als Auslassöffnung 8. Beide Öffnungen sind mit einer jeweiligen Filtereinrichtung 70, 80 in Form von Gittern versehen, um Schwebteile aus der aus dem Inneren der Vorrichtung angesogenen Luft und vor dem Ausblasen der Luft in das Innere 12 der Vorrichtung 1 bzw. das Innere 20 der Behandlungskammer 2 herausfiltern zu können.How better FIG. 2 can be removed, the chamber 4 is provided with a closure door 40 which is openable and closable. Inside the chamber 4, the refrigeration device 5 is arranged, which comprises an evaporator 6, which, however, is only indicated. The housing wall 10 of the device 1, behind which the interior 12 of the device 1 and the interior 20 of the treatment chamber 2 is located, is provided with two openings, as particularly well the Figures 2 and 3 can be removed. The one opening is formed as an inlet opening 7 and the other as an outlet opening 8. 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.

Ferner ist an der Gehäusewandung 10 eine Verschlusseinrichtung 11 angeordnet, die schwenkbar an der Gehäusewandung 10 befestigt ist. Diese Verschlusseinrichtung 11 ist langoval ausgebildet und kann beide Öffnungen 7, 8 einzeln oder zusammen verschließen. Zu diesen Zweck sind die Befestigungsstellen 14 oberhalb von, jedoch vertikal zwischen den beiden Öffnungen 7, 8 angeordnet. In der in Figur 3 gezeigten Ansicht belässt sie beide Öffnungen 7, 8 offen, durch einfaches Verschwenken kann jedoch nur eine oder können beide Öffnungen 7, 8 durch sie verschlossen werden.Further, 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. For this purpose, 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.

Bei der in Figur 3 gezeigten Kammer 4 ist die Verschlusstür 40 zum Verbessern der Übersichtlichkeit der Darstellung weggelassen. Diese ist normalerweise ebenfalls vorhanden, jedoch im Vergleich zu der Ausführung in Figur 2 an der linken Seite angeschlagen. Dort sind also Scharniere 41 vorgesehen. Auf der gegenüberliegenden Seite der Kammer 4 ist eine Verriegelungseinrichtung 42 für die Verschlusstür 40 vorgesehen.At the in FIG. 3 4, 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.

Der Verdampfer 6 dient zum Ansaugen von Luft aus dem Inneren 12 der Vorrichtung 1, insbesondere aus dem Inneren 20 der Behandlungskammer 2. Der Verdampfer erzeugt dabei einen Unterdruck im Inneren der Vorrichtung bzw. der Behandlungskammer (siehe Pfeil P1 in Figur 1) und kann dadurch die Luft aus dieser absaugen, wobei durch einen hohen Unterdruck eine hohe Absauggeschwindigkeit entsteht, die Luft somit schnell aus dem Innern der Vorrichtung 1 bzw. dem Innern 20 der Behandlungskammer 2 entfernt werden kann.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.

Nach dem Absaugen der Luft aus dem Inneren der Vorrichtung bzw. der Behandlungskammer werden die beiden Öffnungen 7, 8, verschlossen. Die abgesogene Luft wird aufgeheizt und nachfolgend abgetaut. Zum Abtauen bleibt ebenfalls die Verschlusstür 40 der Kammer 4 geschlossen. Die in der Kammer befindliche Luft wird heruntergekühlt und die entstandene und entstehende Luftfeuchtigkeit aus der Kammer 4 insbesondere durch Öffnen der Verschlusstür 40 entfernt. Danach wird die Verschlusstür 40 der Kammer 4 wieder geschlossen, die Auslassöffnung 7 durch entsprechendes Verschwenken der Verschlusseinrichtung 11 geöffnet, also die Kammer wieder an das Innere der Vorrichtung angekoppelt bzw. mit diesem gasverbunden, und die Luft in das Innere 12 der Vorrichtung bzw. das Innere 20 der Behandlungskammer 2 zurückgeführt (siehe Pfeil P2 in Figur 1). Befindet sich anstelle von Luft ein anderes insbesondere gasförmiges Medium in der Vorrichtung, werden die vorstehend genannten Schritte entsprechend durchgeführt, wobei zum Entfernen der Feuchtigkeit aus der Kammer 4 ein Absaugen anstelle des Öffnens der Verschlusstür 40 bevorzugt wird/werden kann.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. Thereafter, 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 ). If, instead of air, there is another, especially gaseous, medium in the device, the above-mentioned steps are carried out accordingly, with suction being preferred instead of opening the closing door 40 in order to remove the moisture from the chamber 4.

Durch das Anordnen des Verdampfers 6 bzw. der gesamten Kälteerzeugungseinrichtung 5 außerhalb des eigentlichen Innenraums 12 der Vorrichtung 1 und insbesondere der Behandlungskammer 2 kann die bei der Kälteerzeugung entstehende Feuchtigkeit, die insbesondere im Bereich des Verdampfers entsteht, aus der Bearbeitungsvorrichtung herausgehalten werden. Das Abkühlen des Innenraums der Vorrichtung und insbesondere des Behandlungsraums kann hierdurch daher besonders gut gesteuert werden, wobei der Abtauvorgang getrennt von dem Inneren der Vorrichtung und der Behandlungskammer durchgeführt werden kann und hierbei nicht die Gefahr besteht, dass entstehende Feuchtigkeit in das Innere der Vorrichtung 1 bzw. der Behandlungskammer 2 gelangt. Durch die Verwendung des Verdampfers als Saugeinrichtung zum Ansaugen der Luft aus dem Inneren der Vorrichtung bzw. der Behandlungskammer ist ferner ein besonders einfaches, dadurch kostengünstiges und schnelles Absaugen von Luft ohne weitere Hilfsmittel möglich. Der Verdampfer wird trennbar bezüglich der Gasverbindung zum Inneren der Behandlungskammer bzw. der Vorrichtung angeordnet, kann dabei im Inneren oder außerhalb der Vorrichtung angeordnet werden.By arranging the evaporator 6 or the entire refrigeration device 5 outside the actual inner space 12 of the device 1 and in particular the treatment chamber 2, 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. By the use of 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.

Neben den im Vorstehenden beschriebenen und in den Figuren gezeigten Ausführungsvarianten von Vorrichtungen zum abrasiven Bearbeiten von Stück-und/oder Schüttgut sowie einer Kammer mit zumindest einer Kälteerzeugungseinrichtung mit Verdampfer können noch zahlreiche weitere gebildet werden, bei denen jeweils die Kammer innerhalb und/oder außerhalb, ggfs. ein Teil der Kammer in Inneren und ein Teil außerhalb der Vorrichtung zum abrasiven Bearbeiten, angeordnet ist, also zumindest der Verdampfer räumlich getrennt von der Behandlungskammer, jedoch in Gasverbindung mit dieser bringbar angeordnet ist.In addition to the embodiments described above and shown in the figures of devices for abrasive processing of piece and / or bulk material and a chamber with at least one refrigeration device with evaporator numerous other can be formed, in which each chamber within and / or outside, if necessary, a part of the chamber in the interior and a part outside the apparatus for abrasive processing, is arranged, so at least the evaporator is spatially separated from the treatment chamber, but arranged in a gas connection with this bringbar.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Vorrichtungcontraption
22
Behandlungskammertreatment chamber
33
Stück- und/oder SchüttgutPiece and / or bulk goods
44
Kammerchamber
55
KälteerzeugungseinrichtungRefrigerating apparatus
66
VerdampferEvaporator
77
Einlassöffnunginlet port
88th
Auslassöffnungoutlet
1010
Gehäusewandunghousing
1111
Verschlusseinrichtungclosure device
1212
Inneres der Vorrichtung 1Interior of the device 1
1313
Gehäusecasing
1414
Befestigungsstellefastening point
2020
Inneres der Behandlungskammer 2Interior of the treatment chamber 2
4040
Verschlusstürclosing door
4141
Scharnierhinge
4242
Verriegelungseinrichtunglocking device
7070
Filtereinrichtungfiltering device
8080
Filtereinrichtungfiltering device

Claims (11)

  1. Device (1) for the abrasive processing of piece goods and/or bulk goods (3), said device having at least one treatment chamber (2) for processing the piece goods and/or bulk goods (3), wherein at least one refrigerating apparatus (5) with an evaporator (6) is provided for cooling at least the treatment chamber (2) and/or the piece goods and/or bulk goods (3),
    characterised in that
    at least the evaporator (6) is arranged in a manner spatially separate from the treatment chamber (2) and can be brought into gaseous connection with the latter and/or the interior (12) of the device (1), wherein the evaporator (6) or the refrigerating apparatus (5) with the evaporator (6) is arranged in a separate chamber (4) in a manner capable of being brought into gaseous connection with the treatment chamber (2) separately from the interior (12, 20) of the device (1) and said treatment chamber (2).
  2. Device (1) according to Claim 1,
    characterised in that
    at least two apertures (7, 8) are provided between the interior (12) of the device (1) and/or the interior (20) of the treatment chamber (2) and the separate chamber (4), wherein one aperture is designed as an inlet or sucking-in aperture (7) and one aperture is designed as an outlet or blowing-out aperture (8).
  3. Device (1) according to Claim 2,
    characterised in that
    the inlet or sucking-in aperture (7) and/or the outlet or blowing-out aperture (8) is/are provided with at least one filtering apparatus (70, 80).
  4. Device (1) according to Claim 2 or 3,
    characterised in that
    at least one closing apparatus (11) is provided for closing the inlet or sucking-in aperture (7) and/or the outlet or blowing-out aperture (8).
  5. Device (1) according to Claim 4,
    characterised in that
    the closing apparatus (11) is arranged in a pivotable manner in the region of the inlet or sucking-in aperture (7) and/or of the outlet or blowing-out aperture (8).
  6. Device (1) according to one of the preceding claims,
    characterised in that
    at least one openable and closable closing apparatus (40) is provided for closing the separate chamber (4).
  7. Device (1) according to the pre-characterising clause of Claim 1 or according to one of the preceding claims,
    characterised in that
    the evaporator (6) is designed as a suction apparatus for sucking in the air from the treatment chamber (2) or the interior (12) of the device (1).
  8. Device (1) according to Claim 7,
    characterised in that
    the evaporator (6) is designed in such a way that a negative pressure with high suction with respect to the medium in the treatment chamber (2) and/or to the medium in the interior (12) of the device (1) can be generated for the purpose of sucking away said medium at high speed.
  9. Chamber (4) having at least one refrigerating apparatus (5) with an evaporator (6) for cooling at least one treatment chamber (2) and/or the piece goods and/or bulk goods (3) of a device (1) for the abrasive processing of piece goods and/or bulk goods (3),
    characterised in that
    the chamber (4) can be arranged on the device (1) on the inside or outside or is arranged on said device and/or can be brought, or is brought, into the device and can be brought, or is brought, into gaseous connection with said device or the treatment chamber (2), wherein the chamber (4) has one aperture as an inlet or sucking-in aperture (7) and one aperture as an outlet or blowing-out aperture (8), and at least one closing apparatus (11) for closing the inlet or sucking-in aperture (7) and/or the outlet or blowing-out aperture (8) and at least one further closing apparatus (40) for opening and closing the chamber (4) are provided, and wherein the evaporator (6) can be compartmentalised, or is compartmentalised, in the chamber (4) with respect to the medium or air or gas connection in relation to the treatment chamber (2) or the interior of the device (1) by the at least one closing apparatus (11) for closing at least the inlet or sucking-in aperture (7) and/or at least the outlet or blowing-out aperture (8).
  10. Chamber (4) according to Claim 9,
    characterised in that
    the chamber has at least one apparatus for connecting to the device (1).
  11. Method for cooling down gas, in particular air or another medium, from a device (1) for the abrasive processing of piece goods and/or bulk goods (3) or from the interior of a treatment chamber (2), using an evaporator (6),
    characterised in that
    - the medium, in particular air, is sucked off from the interior of the device (1) or the interior of the treatment chamber (2) into a chamber (4);
    - the medium connection between the interior of the device (1) or the interior of the treatment chamber (2) and the interior of the chamber (4) is severed;
    - the medium which has been sucked off is heated, thawed out and cooled down in the evaporator (6);
    - moisture which has been produced is removed from the chamber (4); and
    - the medium connection between the interior of the device (1) or the interior of the treatment chamber (2) and the interior of the chamber (4) is restored for the flowing-in of the cooled-down and dried medium into the interior of the device (1) or the interior of the treatment chamber (2).
EP12000592.1A 2011-01-28 2012-01-30 Method for abrasive processing of bulk material with cooling device and method for cooling gas from same Active EP2481524B8 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202011002098U DE202011002098U1 (en) 2011-01-28 2011-01-28 Device for abrasive processing of piece and / or bulk material with refrigeration device

Publications (3)

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

Family

ID=45606936

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Application Number Title Priority Date Filing Date
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Country Status (2)

Country Link
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DE (1) DE202011002098U1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1479859A1 (en) * 1964-05-12 1969-05-22 Wheelabrator Corp Device for cooling and deburring molded parts made of elastomers and thermoplastics

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 (en) 1984-07-17 1986-01-30 Dietmar 5960 Olpe Wacker Device for deburring workpieces made of materials which are subject to cold embrittlement
DE8810621U1 (en) 1988-08-22 1988-10-20 Wacker, Dietmar, 5960 Olpe Blasting machine
DE102005040420B4 (en) 2005-08-25 2011-02-24 Dietmar Wacker abrading
DE102009009782A1 (en) 2009-02-20 2010-08-26 Dietmar Wacker Device for abrasively handling piece of goods or bulk goods i.e. plastic or elastomeric molded part, has receiving device rotated or pivoted around axes and movably and translationally mounted for insertion and removal from housing
DE202009014159U1 (en) 2009-10-19 2010-04-01 Zippel Gmbh & Co. Kg Maschinenfabrik Drying arrangement, in particular for industrial cleaning and deburring devices

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1479859A1 (en) * 1964-05-12 1969-05-22 Wheelabrator Corp Device for cooling and deburring molded parts made of elastomers and thermoplastics

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DE202011002098U1 (en) 2012-04-30
EP2481524A1 (en) 2012-08-01

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