EP0122928B1 - Verfahren zum sandstrahlen mit feuchtsand - Google Patents

Verfahren zum sandstrahlen mit feuchtsand Download PDF

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Publication number
EP0122928B1
EP0122928B1 EP83903384A EP83903384A EP0122928B1 EP 0122928 B1 EP0122928 B1 EP 0122928B1 EP 83903384 A EP83903384 A EP 83903384A EP 83903384 A EP83903384 A EP 83903384A EP 0122928 B1 EP0122928 B1 EP 0122928B1
Authority
EP
European Patent Office
Prior art keywords
sand
water
nozzle
blasting
pressure
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.)
Expired
Application number
EP83903384A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0122928A1 (de
Inventor
Josef Keizers
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.)
KEIZERS Sigrid
Original Assignee
KEIZERS Sigrid
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6176526&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0122928(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by KEIZERS Sigrid filed Critical KEIZERS Sigrid
Priority to AT83903384T priority Critical patent/ATE39640T1/de
Publication of EP0122928A1 publication Critical patent/EP0122928A1/de
Application granted granted Critical
Publication of EP0122928B1 publication Critical patent/EP0122928B1/de
Expired 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
    • B24C7/0007—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier
    • B24C7/0038—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier the blasting medium being a gaseous stream
    • 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
    • B24C1/08—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
    • 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
    • B24C5/04—Nozzles therefor
    • 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
    • B24C7/0007—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier
    • 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

Definitions

  • the invention relates to a method for sandblasting with moist sand, in which water and sand are mixed in a pressure vessel and passed under pressure to a blasting nozzle.
  • a method of the type mentioned is known from FR-A-1 080 033:
  • a disadvantage of this method is that it results in a jet power which is too low and the supply hose to the actual jet nozzle can therefore have only a limited length.
  • This object is achieved in that an additional blowing agent is used, this is air and that it is fed to the blasting agent in the blasting nozzle.
  • the particular advantage of the method according to the invention is that normal and not dry sand can be used.
  • the device according to the invention consists of a pressure vessel 1, on which sieves for screening the sand to be blasted are provided and which has an inlet opening for the entry of the sand with a sealing bell.
  • a pressure vessel 1 on which sieves for screening the sand to be blasted are provided and which has an inlet opening for the entry of the sand with a sealing bell.
  • the pressure vessel 1 has leads on to the supply of pressurized water, said sand mixture water is ensured by a nozzle 8 with directed water outlet in the vicinity of the outlet opening 7 for that a 1 fluidized bed is established, so that a smooth and e smooth outflow of the water-sand mixture is set from the lower region of the container 1 ' .
  • ⁇ By-pass lines 9 ensure that a certain water jet emerges from the nozzle 8 even when the container 1 is being filled, and thus fine sand cannot enter it. This prevents clogging.
  • the hose 2 for draining the water-sand mixture is present in the center of the bottom of the container and there are means 10 for introducing additional water into the beginning of the hose 2, which, depending on the hose length and back pressure, promote the water-sand mixture strengthen or support.
  • the water-sand mixture is conveyed to a blasting nozzle 3, in which compressed air is supplied via an additional blowing agent line or, when blasting under water, also pressurized water as a blowing agent for the blowing nozzle 5.
  • This additional blowing agent ensures that, despite the relatively low consumption of pressurized water, a superior blasting effect can be achieved with the lowest blasting agent consumption.
  • a Laval or expansion nozzle can be attached according to FIG. 2 after the actual driving nozzle 5, which opens into a funnel 11.
  • the wet sand blasting device now works automatically after filling with sand and pressurized water as a function of the actuation of the handle 12, additional water being input into the start of the hose 2 via a remote-controlled valve 13.
  • the amount of this make-up water can be controlled by means 10, which consists of a series of valves and overflow lines.
  • the wet sand blasting pressure vessel according to the invention is protected by a reducing valve 14 and a pressure safety valve 15, so that only the desired pressure is generated within the vessel and this automatically reduces when excess pressure occurs.
  • a check valve 16 and a filter 17 ensure that no backwashing with contamination into the pressurized water line takes place from the pressurized container, which could clog the reducing valve 14.
  • the wet sand blasting device according to the invention can be used universally, is of simple construction and works safely and can therefore be of an ideal type Solution to the problems at hand.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Cleaning In General (AREA)
  • Nozzles (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Fish Paste Products (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Paper (AREA)
  • Disintegrating Or Milling (AREA)
EP83903384A 1982-10-25 1983-10-21 Verfahren zum sandstrahlen mit feuchtsand Expired EP0122928B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83903384T ATE39640T1 (de) 1982-10-25 1983-10-21 Verfahren zum sandstrahlen mit feuchtsand.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823239429 DE3239429A1 (de) 1982-10-25 1982-10-25 Verfahren und vorrichtung zum betreiben eines hochdruckstrahlers
DE3239429 1982-10-25

Publications (2)

Publication Number Publication Date
EP0122928A1 EP0122928A1 (de) 1984-10-31
EP0122928B1 true EP0122928B1 (de) 1989-01-04

Family

ID=6176526

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83903384A Expired EP0122928B1 (de) 1982-10-25 1983-10-21 Verfahren zum sandstrahlen mit feuchtsand

Country Status (12)

Country Link
EP (1) EP0122928B1 (enrdf_load_stackoverflow)
JP (1) JPS59502138A (enrdf_load_stackoverflow)
KR (1) KR840006458A (enrdf_load_stackoverflow)
AT (1) ATE39640T1 (enrdf_load_stackoverflow)
AU (1) AU578233B2 (enrdf_load_stackoverflow)
BR (1) BR8307590A (enrdf_load_stackoverflow)
CA (1) CA1260714A (enrdf_load_stackoverflow)
DE (2) DE3239429A1 (enrdf_load_stackoverflow)
GR (1) GR79647B (enrdf_load_stackoverflow)
MX (1) MX157294A (enrdf_load_stackoverflow)
WO (1) WO1984001738A1 (enrdf_load_stackoverflow)
ZA (1) ZA837813B (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3215314A4 (en) * 2014-11-06 2018-05-30 Graco Minnesota Inc. Control of wet abrasive blasters
US10076823B2 (en) * 2010-07-13 2018-09-18 Graco Minnesota Inc. Wet abrasive blasting system and method

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1298708C (en) * 1985-10-10 1992-04-14 Roger Artinade Heron Feeding abrasive material
DE3722258A1 (de) * 1987-07-06 1989-01-19 Pro Aqua Geraete Gmbh Vorrichtung zum herstellen eines unter hochdruck stehenden granulat/fluid-gemisches
DE4012435A1 (de) * 1989-05-09 1990-11-15 Abrex Oberflaechentechnik Gmbh Feuchtsandstrahler
DE8907765U1 (de) * 1989-06-24 1989-10-05 Keizers, geb. Kalle, Sigrid, 46325 Borken Vorrichtung zum Abscheiden von Flüssigkeit aus körnigen oder granulatförmigen Strahlmitteln
DE4035358A1 (de) * 1990-11-07 1992-05-21 Johannes Dieter Verfahren zur umweltschonenden, gefahrlosen entsorgung von asbesthaltigen massen sowie vorrichtung zur durchfuehrung des verfahrens
NL1037571C2 (nl) * 2009-12-18 2011-06-21 Lasbedrijf Vink B V Systeem voor het stralen van objecten met een mengsel van vloeistof en abrasief.
US9925642B2 (en) * 2010-07-13 2018-03-27 Graco Minnesota Inc. Wet abrasive blasting system and method
WO2016073355A1 (en) * 2014-11-06 2016-05-12 Graco Fluid Handling (B) Inc. Wet abrasive blast pot

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US805029A (en) * 1905-02-06 1905-11-21 Edward P Reichhelm Sand-blast.
GB205633A (en) * 1922-09-01 1923-10-25 John Baty Young An improved tobacco-pipe cleaner
DE535287C (de) * 1930-10-24 1931-10-08 Badische Maschinenfabrik & Eis Druckbehaelter fuer Vorrichtungen zum Putzen von Gussstuecken mittels eines Druckwasser-Sand-Gemisches
US2532136A (en) * 1949-03-17 1950-11-28 American Wheelabrator & Equipm Graining or abrading lithographic plates or the like by centrifugal blast of wet slurry
DE826110C (de) * 1949-05-11 1951-12-27 Gen Presswork & Stampings Ltd Verfahren und Maschinen zum Polieren von Platinen, Abteilern und schlingenbildenden Werkzeugen von Strickmaschinen
NL92868C (enrdf_load_stackoverflow) * 1952-05-31
DE1268514B (de) * 1962-11-17 1968-05-16 Vacu Blast Ltd Vorrichtung zum Durchwirbeln und Abmessen eines Stromes von feinverteilten Schleifmittelpartikeln
US3385005A (en) * 1965-09-10 1968-05-28 Champion Spark Plug Co Wet cleaner for spark plug
US3514905A (en) * 1967-07-03 1970-06-02 Mckenzie Pump Corp Hydraulic method and apparatus for dispensing granular material under pressure
DE1809678A1 (de) * 1968-11-19 1970-05-21 Woma Appbau W Maasberg & Co Gm Strahllanze
DE1809677A1 (de) * 1968-11-19 1970-05-21 Woma Appbau W Maasberg & Co Gm Strahlduese fuer Hochdruck-Strahleinrichtungen
JPS5824230B2 (ja) * 1976-07-22 1983-05-19 石川島播磨重工業株式会社 研磨機の研掃材噴射装置
JPS5322998A (en) * 1976-08-14 1978-03-02 Nippon Asbestos Co Ltd Magnesium hydroxide neutron shielding material and method of producing same
JPS541073A (en) * 1977-06-03 1979-01-06 Furuno Electric Co Aerovane
DE2934023A1 (de) * 1979-08-22 1981-03-12 Myers-Europe Pumpen GmbH, 4300 Essen Nasssandstrahl-verfahren und einrichtung zum durchfuehren des verfahrens

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10076823B2 (en) * 2010-07-13 2018-09-18 Graco Minnesota Inc. Wet abrasive blasting system and method
EP3215314A4 (en) * 2014-11-06 2018-05-30 Graco Minnesota Inc. Control of wet abrasive blasters
US10245702B2 (en) 2014-11-06 2019-04-02 Graco Minnesota Inc. Control of wet abrasive blasters

Also Published As

Publication number Publication date
CA1260714A (en) 1989-09-26
JPS59502138A (ja) 1984-12-27
EP0122928A1 (de) 1984-10-31
BR8307590A (pt) 1984-09-25
DE3239429A1 (de) 1984-04-26
WO1984001738A1 (en) 1984-05-10
MX157294A (es) 1988-11-11
AU2123383A (en) 1984-05-22
DE3378819D1 (en) 1989-02-09
AU578233B2 (en) 1988-10-20
ATE39640T1 (de) 1989-01-15
KR840006458A (ko) 1984-11-30
GR79647B (enrdf_load_stackoverflow) 1984-10-31
ZA837813B (en) 1984-06-27

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