EP2681009A1 - Procédé et dispositif destinés à préparer un mélange de glace carbonique et de glace d'eau en tant qu'agent de grenaillage - Google Patents

Procédé et dispositif destinés à préparer un mélange de glace carbonique et de glace d'eau en tant qu'agent de grenaillage

Info

Publication number
EP2681009A1
EP2681009A1 EP12707539.8A EP12707539A EP2681009A1 EP 2681009 A1 EP2681009 A1 EP 2681009A1 EP 12707539 A EP12707539 A EP 12707539A EP 2681009 A1 EP2681009 A1 EP 2681009A1
Authority
EP
European Patent Office
Prior art keywords
ice
water
dry ice
mixture
feed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP12707539.8A
Other languages
German (de)
English (en)
Other versions
EP2681009B1 (fr
Inventor
Wilfried BÖHM
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP2681009A1 publication Critical patent/EP2681009A1/fr
Application granted granted Critical
Publication of EP2681009B1 publication Critical patent/EP2681009B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C11/00—Selection of abrasive materials or additives for abrasive blasts
    • 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
    • B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
    • B24C7/0046—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier

Definitions

  • Dry ice is suitable for blasting surfaces that
  • Beam particles must be cleaned. In particular, when blasting turbine blades and the like, considerable advantages are achieved.
  • Dry ice has a shredder, by means of which the supplied dry ice accordingly
  • the crushed dry ice is then on a jet device, in which usually heated air is used as a carrier medium, to
  • the object of the invention is to provide a method and an apparatus for producing a dry ice water ice mixture, in particular for irradiating areas to be cleaned.
  • Water ice introduced into a mixing area it is considered essential that either the water is introduced so that it mixes with the dry ice only when it is already in the ice-like state, or water ice and dry ice are introduced separately, wherein the water ice is further cooled. Mixing water and dry ice should be avoided.
  • the inventive method and the device according to the invention is thus that the dry ice and the water or water ice by means of a device so in the
  • Feeders are spaced so as to preclude initial contact of the media.
  • Arrangement are chosen so that the media does not touch, as long as the water is in liquid form.
  • Feed is supplied and the water via at least one laterally staggered nozzle, wherein the
  • the dry ice is supplied via a slot-like feed opening.
  • the water can be supplied via a slot-like nozzle but also on differently shaped nozzles, for example via simple circular nozzles, in which case expediently a plurality of nozzles are provided in series or else offset in a row-like arrangement.
  • a slot-like feed opening for example via simple circular nozzles, in which case expediently a plurality of nozzles are provided in series or else offset in a row-like arrangement.
  • the dry ice is supplied in a known manner in a suitable size, wherein the actual feed may be preceded by a known grinding device by means of which the dry ice is ground to an optimum size.
  • the procedure is similar when dry ice and water ice are introduced as media in the mixing area.
  • the dry ice is separated separately from the water ice in the
  • a grinding device for the dry ice and possibly also for the water ice can be provided prior to introduction into the mixing area.
  • Such a design is based on a concrete
  • the mixing zone is actively cooled and is expediently isolated, the temperature in the mixing zone dropping further due to the introduced dry ice.
  • the parameters of the dry ice water supply and cooling are so
  • the mixing region may have a second region, which is also cooled and insulated.
  • contact surfaces are expediently provided, which can be created by contact plates, which come with the ice mixture inevitably in contact. These contact surfaces are also cooled and cool that
  • Ice mixture especially the water ice during the
  • the second region of the mixing region is formed as a downpipe in which slidably offset protruding contact surfaces are provided, over which the ice mixture slips successively down and during the contact time, as stated, is further cooled. Since the water is already in ice form when entering this second area, it does not freeze the
  • a metering device is expediently provided, via which the dry ice-water ice mixture is metered.
  • Eisgemisches has proven to be a compressed air device, in the advantageous heated air to transport the
  • Ice mixture is used.
  • the ice mixture can then be fed directly to the actual jet device, wherein the preheated air can already represent the carrier medium for the actual blasting process.
  • FIG. 1 shows a first device according to the invention in partial section.
  • Figure 2 shows a second device according to the invention in partial section.
  • Dry ice provided. This is brought at the output of the dry ice hopper 1 by a grinder 13 in a suitable size and a slot-like
  • two rows of water nozzles 4 are arranged on both sides of the feed 3, through which water is introduced into the mixing space 2.
  • the dry ice and the water are introduced into the mixing space 2 substantially parallel, ie essentially in the same direction from above. This prevents the water from coming into contact with the dry ice when still in the liquid state.
  • the mixing chamber 2 is cooled and insulated, wherein the air temperature in the mixing chamber 2 continues to cool due to the penetration of the dry ice.
  • the water injected through the nozzles 4 freezes in the mixing chamber, so that when it touches the walls of the upper first funnel-like region of the mixing region 2
  • the mixing region 2 has a first funnel-shaped region 5, to which a second region 7
  • This second region 7 is basically designed like a chute and has an inlet 6 and an outlet 8. Already shortly after the entrance 6 is a first
  • Contact plate 9 is arranged, which projects from the cooled wall of the second portion 7 inwardly and
  • the contact plates 9, 10 Due to the size and arrangement of the contact plates 9, 10 prevents the ice mixture falls directly through the second region 7 of the mixing region 2 through, but this must pass through the contact plates and slips from the first contact plate on the second contact plate, from this to the third contact plate etc. Since the contact sheets 9, 10 are cooled, cold is still transferred to the ice mixture during the residence time of the ice mixture on the contact plates. In addition, the dry ice releases some of its cold to the water ice. This leads to that
  • a metering device 11 is provided, by means of which
  • Ice mixture is metered. About an air supply 12, the ice mixture is removed from the metering device. The Ice cream can then directly the actual
  • Radiated device are supplied, wherein the mentioned air can be used already preheated as jet air.
  • Compressed air can also be used to dry treated surfaces.
  • water ice is radiated onto the surface to be treated, water remains on this.
  • compressed air preferably preheated compressed air
  • the compressed air generator which is used for generating said jet air, provide this compressed air for drying the blasted surfaces.
  • Compressed air is applied to the surface to be dried immediately after blasting. But it is also conceivable to apply these together with the blasting process. This can be done technically easier because
  • a feed hopper 18 is provided in the second embodiment, which is divided into a first region 14 and a second region 15. Dry ice is supplied via the first region 14, whereas water ice is supplied via the second region 15. Both will be on the feeder 3 the Mixing chamber 2 supplied. Before the ice over the
  • Feed 3 enters the mixing chamber 2, it is about
  • Grinders 16, 17 grind to the desired size.
  • the grinder 16 is in the end region of the first
  • Grinding device 17 serves in an analogous manner in the end region of the second region 15 of the comminution of the water ice.
  • the dry ice is thus shredded as well as the water ice to the desired size and introduced in parallel from above via the feed 3 into the mixing chamber. Because the
  • Feed direction is identical, fall dry and water ice first parallel in the mixing chamber 2 down, so that it

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

L'invention concerne un procédé et un dispositif destinés à la préparation d'un mélange de glace carbonique et de glace d'eau, la glace carbonique étant introduite dans une zone de mélange à travers une alimentation, l'eau ou la glace d'eau y étant également introduite au moyen d'une alimentation séparée. L'alimentation en glace carbonique et en glace d'eau est réalisée de façon à ce que l'eau n'entre pas en contact avec la glace carbonique tant qu'elle est à l'état liquide. Un mélange ne se produit que lorsque ladite eau se présente sous forme de glace. Le mélange de glaces, notamment la glace d'eau, peut encore être refroidi, pour augmenter la dureté de cette dernière, au moyen de surfaces de contact servant à refroidir ladite glace d'eau à des valeurs plus basses.
EP12707539.8A 2011-03-01 2012-03-01 Méthode et dispositif pour la production d'une mélange de glace et neige sèche comme agent de projection Active EP2681009B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110004923 DE102011004923A1 (de) 2011-03-01 2011-03-01 Verfahren und Vorrichtung zur Herstellung eines Trockeneiswassereisgemisches
PCT/EP2012/053575 WO2012117077A1 (fr) 2011-03-01 2012-03-01 Procédé et dispositif destinés à préparer un mélange de glace carbonique et de glace d'eau en tant qu'agent de grenaillage

Publications (2)

Publication Number Publication Date
EP2681009A1 true EP2681009A1 (fr) 2014-01-08
EP2681009B1 EP2681009B1 (fr) 2015-08-05

Family

ID=45808877

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12707539.8A Active EP2681009B1 (fr) 2011-03-01 2012-03-01 Méthode et dispositif pour la production d'une mélange de glace et neige sèche comme agent de projection

Country Status (3)

Country Link
EP (1) EP2681009B1 (fr)
DE (1) DE102011004923A1 (fr)
WO (1) WO2012117077A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021138545A1 (fr) * 2019-12-31 2021-07-08 Cold Jet, Llc Procédé et appareil pour un flux de soufflage amélioré
US11617378B2 (en) 2020-12-31 2023-04-04 Sharkninja Operating Llc Micro puree machine
US11672382B2 (en) 2020-12-31 2023-06-13 Sharkninja Operating Llc Micro puree machine
US11832767B2 (en) 2020-12-31 2023-12-05 Sharkninja Operating Llc Micro puree machine
US11864690B2 (en) 2020-12-31 2024-01-09 Sharkninja Operating Llc Micro puree machine
USD1021533S1 (en) 2022-05-09 2024-04-09 Sharkninja Operating Llc User interface for a micro puree machine
USD1021520S1 (en) 2022-05-09 2024-04-09 Sharkninja Operating Llc Housing for a micro puree machine

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014124755A1 (fr) * 2013-02-18 2014-08-21 Jürgen Von Der Ohe Procédé et dispositif de nettoyage au jet froid
WO2015074765A1 (fr) * 2013-11-25 2015-05-28 Jürgen Von Der Ohe Procédé de fabrication d'un agent de sablage, procédé de sablage, agent de sablage et dispositif de fabrication de l'agent de sablage
WO2015074766A1 (fr) * 2013-11-25 2015-05-28 Jürgen Von Der Ohe Procédé et dispositif de nettoyage de turbomoteurs
DE102013224635A1 (de) * 2013-11-29 2015-06-03 Lufthansa Technik Ag Verfahren und Vorrichtung zur Reinigung eines Strahltriebwerks
DE102013224639A1 (de) * 2013-11-29 2015-06-03 Lufthansa Technik Ag Verfahren und Vorrichtung zur Reinigung eines Strahltriebwerks
DE202016101964U1 (de) 2015-04-20 2016-04-28 Dca Deckert Anlagenbau Gmbh Strahlvorrichtung
AU2017210772B9 (en) * 2016-01-27 2019-08-08 Coulson Ice Blast Ltd. Ice blasting system and method
EP3814050A4 (fr) * 2018-06-26 2022-03-09 Coulson Ice Blast Ltd. Machine de projection de glace à fonctionnement en mode double pour glace hydrique et glace carbonique
USD983603S1 (en) 2020-12-31 2023-04-18 Sharkninja Operating Llc Blade for a micro puree machine
US11641978B2 (en) 2020-12-31 2023-05-09 Sharkninja Operating Llc Micro puree machine
USD985331S1 (en) 2020-12-31 2023-05-09 Sharkninja Operating Llc Housing for a micro puree machine
USD985334S1 (en) 2020-12-31 2023-05-09 Sharkninja Operating Llc Nested bowl for a micro puree machine
DE202023002024U1 (de) 2023-04-18 2024-01-04 Jürgen von der Ohe Vorrichtung zum Herstellen eines festen kryogen-mechanisch wirkenden Strahlmittels aus Wasser im Gegenstromverfahren

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US4655847A (en) * 1983-09-01 1987-04-07 Tsuyoshi Ichinoseki Cleaning method
JPS6065710A (ja) * 1983-09-19 1985-04-15 Ishikawajima Harima Heavy Ind Co Ltd ドライアイスと氷の混合造粒方法及び装置
DE102006002653B4 (de) * 2005-01-27 2009-10-08 Luderer Schweißtechnik GmbH Trockeneisstrahlverfahren
DE102010020618B4 (de) * 2009-05-26 2014-05-28 Jürgen von der Ohe Verfahren zur Herstellung von CO2-Pellets oder von CO2-Partikeln mit erhöhter mechanischer Härte und Abrasivität
DE102010020619A1 (de) * 2009-05-26 2011-02-24 Ohe, Jürgen von der, Dr.-Ing. Verfahren und Vorrichtung zum Reinigen von metallischen oder nichtmetallischen Oberflächen unter Einsatz von Druckluft, einem kalten Strahlmittel, in Kombination mit einem festen Strahlmittel und/oder einem Strahlmittelgemisch

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See references of WO2012117077A1 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021138545A1 (fr) * 2019-12-31 2021-07-08 Cold Jet, Llc Procédé et appareil pour un flux de soufflage amélioré
US11780051B2 (en) 2019-12-31 2023-10-10 Cold Jet, Llc Method and apparatus for enhanced blast stream
US11617378B2 (en) 2020-12-31 2023-04-04 Sharkninja Operating Llc Micro puree machine
US11672382B2 (en) 2020-12-31 2023-06-13 Sharkninja Operating Llc Micro puree machine
US11832767B2 (en) 2020-12-31 2023-12-05 Sharkninja Operating Llc Micro puree machine
US11864690B2 (en) 2020-12-31 2024-01-09 Sharkninja Operating Llc Micro puree machine
USD1021533S1 (en) 2022-05-09 2024-04-09 Sharkninja Operating Llc User interface for a micro puree machine
USD1021520S1 (en) 2022-05-09 2024-04-09 Sharkninja Operating Llc Housing for a micro puree machine

Also Published As

Publication number Publication date
EP2681009B1 (fr) 2015-08-05
DE102011004923A1 (de) 2012-09-06
WO2012117077A1 (fr) 2012-09-07

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