EP1034889A2 - Procédé et appareil de grenaillage avec des particules refroidies - Google Patents

Procédé et appareil de grenaillage avec des particules refroidies Download PDF

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Publication number
EP1034889A2
EP1034889A2 EP00104374A EP00104374A EP1034889A2 EP 1034889 A2 EP1034889 A2 EP 1034889A2 EP 00104374 A EP00104374 A EP 00104374A EP 00104374 A EP00104374 A EP 00104374A EP 1034889 A2 EP1034889 A2 EP 1034889A2
Authority
EP
European Patent Office
Prior art keywords
blasting
conveying gas
gas stream
workpiece
liquefied gases
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP00104374A
Other languages
German (de)
English (en)
Other versions
EP1034889A3 (fr
Inventor
Serex Jean-Pierre
Saxer Ing.- Htl Joseph
Schiffbauer Dipl-Ing.(FH) Reiner
Buingerdipl.Phys. Alexander
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.)
Linde GmbH
Original Assignee
Linde Gas AG
Linde Technische Gase GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Linde Gas AG, Linde Technische Gase GmbH filed Critical Linde Gas AG
Publication of EP1034889A2 publication Critical patent/EP1034889A2/fr
Publication of EP1034889A3 publication Critical patent/EP1034889A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material

Definitions

  • the invention relates to a method for irradiating a workpiece with under Normal conditions in a solid state of abrasive, the Blasting agent dosed into a conveying gas stream in a blasting system, with the feed gas stream conveyed to a blasting device and onto the workpiece to be machined be blasted.
  • the invention further relates to a device for irradiating a Workpiece with a solid state under normal conditions Blasting media comprising a blasting system with means for metering in the blasting media into a conveying gas stream, a blasting hose that runs from the blasting system to a Blasting device leads from which the blasting agent onto the workpiece to be machined be blasted.
  • Abrasives have been known for a long time and are used for numerous applications used. Blasting with these conventional abrasives shows usually a much higher abrasiveness than exposure to some Time also known abrasives, which are present in fluid form under normal conditions such as dry ice.
  • Conventional abrasives include for example quartz sand (sandblasting), but also steel gravel, hard cusk gravel, Grain of wire, corundum or other inorganic or organic abrasives or Plant-based abrasives.
  • the present invention is therefore based on the object of a method and a Show device of the type mentioned, which an effective dust binding show in a simple way.
  • This object is achieved in that the feed gas stream is cooled and dust-binding condensate droplets in the jet directed towards the workpiece be generated.
  • the feed gas stream is cooled by adding liquefied gases.
  • liquefied gases is understood to mean a liquefied gas or a mixture of several liquefied gases.
  • all suitable gases can be used for the invention.
  • Liquefied nitrogen (LIN), liquefied carbon dioxide (LCO 2 ) or liquefied synthetic air are used with advantage.
  • the use of liquefied synthetic air enables treatment even in heavy rooms without heavy breathing protection (e.g. filter protection is sufficient).
  • the cooling can not (yet) by adding liquefied gases in the blasting media carrying gas flow.
  • liquefied gas in a partial stream of the conveying gas stream can be fed.
  • a partial stream of the conveying gas stream can be bypassed be guided around the blasting system, with the feed of liquefied gases in this bypass partial flow takes place.
  • the cooling can be done by adding liquefied gas to the already Blasting media carrying conveying gas flow.
  • Addition of the liquefied gases takes place within the blasting device.
  • compressed air is used as the gas for the conveying gas stream
  • the device according to the invention shown in FIG. 1 shows a blasting system 1 with a compressed air supply 2.
  • the blasting system 1 contains a reservoir for the blasting media 3.
  • the blasting agent 3 is added to the compressed air delivery flow from line 2 and passed via the blasting hose 7 to the blasting device 4, which is designed as a blasting gun.
  • a bypass line 5 is shown in Figure 1 for a partial flow of compressed air. For example, liquid nitrogen or liquid carbon dioxide is fed into the bypass line for cooling from a gas supply 6.
  • FIG. 2 shows , as in FIG. 1 described above, a blasting system 1 with a reservoir for the blasting medium 3, to which compressed air is supplied as the conveying gas via line 2.
  • the blasting system 1 is connected to the blasting gun 4 via the blasting hose 7.
  • a line 9 from the gas container 6 to the blasting gun 4 is provided in FIG.
  • Liquefied gas such as, for example, liquid nitrogen, is passed via this line 9 for cooling into the blasting gun 4.
  • the jet of compressed air and blasting media is cooled within the blasting gun 4.
EP00104374A 1999-03-05 2000-03-02 Procédé et appareil de grenaillage avec des particules refroidies Withdrawn EP1034889A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19909719 1999-03-05
DE19909719 1999-03-05

Publications (2)

Publication Number Publication Date
EP1034889A2 true EP1034889A2 (fr) 2000-09-13
EP1034889A3 EP1034889A3 (fr) 2000-12-20

Family

ID=7899826

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00104374A Withdrawn EP1034889A3 (fr) 1999-03-05 2000-03-02 Procédé et appareil de grenaillage avec des particules refroidies

Country Status (2)

Country Link
EP (1) EP1034889A3 (fr)
DE (1) DE10010010A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006000274A1 (fr) * 2004-06-24 2006-01-05 Jens Werner Kipp Procede et dispositif d'alimentation en dioxyde de carbone liquide

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0228939A1 (fr) * 1985-12-12 1987-07-15 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Procédé et appareil de traitement mécanique de pièces
DE3617692A1 (de) * 1986-05-26 1987-12-03 Klaus Fertl Vorrichtung in sandstrahlleitungen
WO1993024275A1 (fr) * 1992-06-01 1993-12-09 Ice Blast International Ltd. Sablage par cristaux de glace
JPH0911132A (ja) * 1995-06-23 1997-01-14 Sho Bond Constr Co Ltd 研掃方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0228939A1 (fr) * 1985-12-12 1987-07-15 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Procédé et appareil de traitement mécanique de pièces
DE3617692A1 (de) * 1986-05-26 1987-12-03 Klaus Fertl Vorrichtung in sandstrahlleitungen
WO1993024275A1 (fr) * 1992-06-01 1993-12-09 Ice Blast International Ltd. Sablage par cristaux de glace
JPH0911132A (ja) * 1995-06-23 1997-01-14 Sho Bond Constr Co Ltd 研掃方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 05, 30. Mai 1997 (1997-05-30) & JP 09 011132 A (SHO BOND CONSTR CO LTD), 14. Januar 1997 (1997-01-14) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006000274A1 (fr) * 2004-06-24 2006-01-05 Jens Werner Kipp Procede et dispositif d'alimentation en dioxyde de carbone liquide

Also Published As

Publication number Publication date
EP1034889A3 (fr) 2000-12-20
DE10010010A1 (de) 2000-09-07

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