EP0850727A2 - Lance pour le traitement au jet abrasif humide - Google Patents

Lance pour le traitement au jet abrasif humide Download PDF

Info

Publication number
EP0850727A2
EP0850727A2 EP97123037A EP97123037A EP0850727A2 EP 0850727 A2 EP0850727 A2 EP 0850727A2 EP 97123037 A EP97123037 A EP 97123037A EP 97123037 A EP97123037 A EP 97123037A EP 0850727 A2 EP0850727 A2 EP 0850727A2
Authority
EP
European Patent Office
Prior art keywords
liquid
blasting
jet
nozzle
gas
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
EP97123037A
Other languages
German (de)
English (en)
Other versions
EP0850727A3 (fr
EP0850727B1 (fr
Inventor
Josef Bauer
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.)
Bauer Andreas
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 EP0850727A2 publication Critical patent/EP0850727A2/fr
Publication of EP0850727A3 publication Critical patent/EP0850727A3/fr
Application granted granted Critical
Publication of EP0850727B1 publication Critical patent/EP0850727B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B24C7/0084—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a mixture of liquid and gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C5/00—Devices or accessories for generating abrasive blasts
    • B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
    • 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
    • B24C7/0076—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 the blasting medium being a liquid stream

Definitions

  • the present invention relates to a blasting gun according to the preamble of claim 1.
  • the object of the present invention is to avoid these disadvantages and the invention accordingly shows a blasting gun, which can be used especially in the context of a plant, as is the subject of DE 196 23 024.1, so that the present Invention as the formation of an essential part of the older Invention can be seen.
  • a blasting hose is led to the center piece and with one Connection clamp held on the inlet pipe.
  • the inlet pipe is at the junction with the blasting hose with a bead trained to prevent it from slipping.
  • the inlet pipe is provided with a thread in the middle part that connects to the centerpiece.
  • the center piece with outlet nozzle and Pick-up tube has two internal thread points for connection with the nozzle assembly, the connection also with Quick closures is possible.
  • the outlet nozzle has a nozzle shape, how it will be described.
  • the water jet nozzle can basically be replaced as desired if it only gives the desired rinsing effect.
  • Switching valve is a ball needle or slide valve possible. With the basic equipment of the valve, the water is in the Center piece of the jet nozzle unit initiated and the way to Rinsing pipe released. The holes in the flushing nozzles are relative large ⁇ so that the pressure drops due to the increased water passage.
  • a pressure difference switch switches the boiler system off and only the water pump is running. Is a high pressure cleaning with the gun is desired, the air supply is through a ball valve Boiler system shut off and the pressure at the pump increased.
  • a needle valve can only be used to open or close the water supply serve or also by an additional pressure difference switch start the high pressure pump.
  • the boiler pump control is done by a proximity switch without Touch switches or through a micro pressure switch that coupled the boiler system as well as high pressure pump in or out Operation continues. There is also the possibility of depending to switch the pump and boiler system separately from the needle valve. Since the trigger lever the needle valve and the proximity or If the pressure switch is actuated, the pump and boiler system become the same Time switched.
  • the necessary lines are connected to the Cables of the control block together in a cable strand Control unit led into the system.
  • the control block is one encapsulated waterproof control unit that regulates the Air pressure and the amount of abrasive via a control line Facility enables.
  • the more or less regulation can by individual switches or push buttons as well as toggle switches respectively.
  • the switching point can be on the left and right of the Gun be arranged or lie on one side.
  • the switching point (s) is (are) protected from damage or unwanted by a sliding hinged or sash cover Switch protected.
  • the within the vortex jet gun according to the invention trained water strand results from Fig. 2.
  • the with the reference numeral 1 and 2 marked water supply can be as shown or through a flexible hose take place, which led to the connector 3 is.
  • Numeral 4 is a conventional needle valve marked from the high pressure water technology.
  • the Reference number 5 denotes a connecting piece.
  • the Reference numerals 5 and 6 denote intermediate lines that can be replaced by flexible hose lines.
  • the reference numerals 8 to 17 identify a changeover valve with a ball 16. By turning the axis 12 the ball 16 raised or lowered and optionally gives the Passage to the swirl nozzle (in Fig. 1 "outlet nozzle") or the flushing pipe (in Fig.1 "water jet nozzle”) free or blocks him.
  • the valve can be a needle valve with the same function be.
  • the reference symbol 18 denotes an end pipe.
  • the Reference number 19 denotes a screw-in jet nozzle with the desired spray pattern, for example a point flat
  • the vortex nozzle preferably provided for the invention results from Fig. 3 with the partial figures 3a to 3d, of 3a a perspective view, FIG. 3b a Show side view.
  • the reference number 3 denotes a screwable point nozzle with continuous thread for Screw connection or with O-ring for quick connection.
  • the reference number 4 denotes a welded threaded tube for the nozzle function.
  • the reference number 5 denotes a centerpiece with two internal thread points, which is essentially wear-free.
  • the reference number 7 indicates an outlet nozzle with training according to the invention as a mixing chamber part insert, which is a wearing part is.
  • the blasting gun works via a remote control cable that goes into the Supply line is integrated to feed the components Gas (generally air), blasting media (granules) and Regulate liquid (generally water).
  • Gas generally air
  • blasting media granules
  • Regulate liquid generally water
  • the control block acts on the changeover valve around this to put in one of three positions. In one of these End positions, all valve outlets are blocked, it finds no liquid application. Dry comes out of the outlet nozzle Blasting agent-gas mixture, unless the supply this mixture to the blasting gun by means of the control block is also blocked. In one of the other two of the three end positions of the changeover valve the liquid supply to the water jet nozzle to get out of this to emerge as a washing or rinsing jet.
  • the liquid becomes the other two of the three end positions fed to the mixing chamber integrated in the outlet nozzle, in which the mixture used for spraying Gas, abrasive and liquid is processed.
  • the type of admixture tangential to the flow direction of the abrasive gas mixture is the Inlet pipe for the blasting agent-gas mixture through the central piece passed through to something from the jet nozzle housing to protrude into the enclosed mixing chamber.
  • the inlet pipe and the concentrically surrounding central part there is an annular space of small width, in the oblique that of the changeover valve in its corresponding position liquid inlet port opens in such a way that the liquid in the longitudinal direction of the annulus with an axial directional component and with a circumferential directional component to be led.
  • the hollow liquid jet which is subject to swirl, becomes the axially flowing abrasive gas mixture assigned, surrounds it like a coat and tears it in Limits in the circumferential direction (in addition to the axial movement) with, so that the mixture of abrasive, gas and liquid does not impact vertically on a surface to be cleaned, but moved across the surface as a high-energy film becomes efficient and gentle on the dirt from of the surface.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
EP97123037A 1996-12-31 1997-12-31 Lance pour le traitement au jet abrasif humide Expired - Lifetime EP0850727B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19654779A DE19654779A1 (de) 1996-12-31 1996-12-31 Strahlpistole für die Naßstrahlung
DE19654779 1996-12-31

Publications (3)

Publication Number Publication Date
EP0850727A2 true EP0850727A2 (fr) 1998-07-01
EP0850727A3 EP0850727A3 (fr) 1998-11-11
EP0850727B1 EP0850727B1 (fr) 2002-11-27

Family

ID=7816437

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97123037A Expired - Lifetime EP0850727B1 (fr) 1996-12-31 1997-12-31 Lance pour le traitement au jet abrasif humide

Country Status (3)

Country Link
EP (1) EP0850727B1 (fr)
AT (1) ATE228417T1 (fr)
DE (2) DE19654779A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005057115A1 (de) * 2005-11-28 2007-05-31 Alfred Kärcher Gmbh & Co. Kg Trockeneisabgabegerät

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3858358A (en) * 1973-01-02 1975-01-07 American Aero Ind High pressure liquid and abrasive cleaning apparatus
DE8801677U1 (fr) * 1988-02-10 1988-05-11 Bauer, Josef, 2000 Hamburg, De
US4821467A (en) * 1986-06-06 1989-04-18 Whitemetal Inc. Control system for liquid propelled abrasive cleaning
US5024029A (en) * 1988-10-04 1991-06-18 Stripping Technologies Inc. Abrasive media valve system
WO1994027785A1 (fr) * 1993-05-26 1994-12-08 Carolina Equipment And Supply Company, Inc. Dispositif et procede de nettoyage par liquides haute pression a bas debit
FR2709257A1 (fr) * 1993-08-23 1995-03-03 Viel Jean Pierre Procédé de nettoyage de bâtiment par très basse pression.
DE29607056U1 (de) * 1996-04-18 1996-07-18 Szuecs Johann Vorrichtung zur Versorgung einer Strahlpistole mit Arbeitsmedien

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3828478A (en) * 1973-06-25 1974-08-13 E Bemis Fluid-jet-abrasive device and system
US4057940A (en) * 1976-12-02 1977-11-15 Otto Wemmer Control for sand blasting nozzle
DE8327903U1 (de) * 1983-09-29 1984-03-22 Keizers, geb. Kalle, Sigrid, 4280 Borken Strahlrohr fuer einen hochdruckstrahler
US5216848A (en) * 1988-10-04 1993-06-08 Stripping Technologies Inc. Dual controls for an abrasive blast system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3858358A (en) * 1973-01-02 1975-01-07 American Aero Ind High pressure liquid and abrasive cleaning apparatus
US4821467A (en) * 1986-06-06 1989-04-18 Whitemetal Inc. Control system for liquid propelled abrasive cleaning
DE8801677U1 (fr) * 1988-02-10 1988-05-11 Bauer, Josef, 2000 Hamburg, De
US5024029A (en) * 1988-10-04 1991-06-18 Stripping Technologies Inc. Abrasive media valve system
WO1994027785A1 (fr) * 1993-05-26 1994-12-08 Carolina Equipment And Supply Company, Inc. Dispositif et procede de nettoyage par liquides haute pression a bas debit
FR2709257A1 (fr) * 1993-08-23 1995-03-03 Viel Jean Pierre Procédé de nettoyage de bâtiment par très basse pression.
DE29607056U1 (de) * 1996-04-18 1996-07-18 Szuecs Johann Vorrichtung zur Versorgung einer Strahlpistole mit Arbeitsmedien

Also Published As

Publication number Publication date
EP0850727A3 (fr) 1998-11-11
DE59708818D1 (de) 2003-01-09
ATE228417T1 (de) 2002-12-15
EP0850727B1 (fr) 2002-11-27
DE19654779A1 (de) 1998-07-02

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