EP0122928A1 - Verfahren zum sandstrahlen mit feuchtsand. - Google Patents
Verfahren zum sandstrahlen mit feuchtsand.Info
- Publication number
- EP0122928A1 EP0122928A1 EP83903384A EP83903384A EP0122928A1 EP 0122928 A1 EP0122928 A1 EP 0122928A1 EP 83903384 A EP83903384 A EP 83903384A EP 83903384 A EP83903384 A EP 83903384A EP 0122928 A1 EP0122928 A1 EP 0122928A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sand
- water
- blasting
- nozzle
- pressurized water
- 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
Links
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 damp sand and a damp sandblasting device for
- a method of the type mentioned is e.g. B. known from German Patent 535,287 or US Pat. No. 3,514,905.
- a disadvantage of these methods and the corresponding devices, which for those skilled in the art naturally also have input means for the sand to be blasted, is that they are too small
- the supply hose to the actual jet nozzle can only have a limited length and that the nozzles for introducing the pressurized water into the pressure vessel can also be easily added during its filling.
- the wet sandblasting device according to the invention is simply constructed and should be reliable and easy to regulate.
- Compressed air is advantageously used as the blowing agent, alternatively, however, pressurized water can also be used as the Z propellant for blasting, in particular under water.
- pressurized water can also be used as the Z propellant for blasting, in particular under water.
- ⁇ n another embodiment of the invention is advantageously medium flow for setting a uniform blasting vessel by a water jet in the Druck ⁇ a water-sand fluidized bed produced, and the promotion of the pressurized water-sand mixture vorteil ⁇ can by way of this governed by the outlet from the pressure vessel Additional pressurized water can be supplied.
- the damp sand blasting device is advantageously characterized in that there is a blasting nozzle for the damp sand connected to the pressure container via a hose, the blasting nozzle with an additional propellant line
- OMP is connected and has a drive nozzle in which the hose for the water-sand mixture opens.
- the damp sandblasting device is advantageously designed such that it has a nozzle for introducing pressurized water, a means for low continuous introduction of pressurized water during filling and for the strong introduction of pressurized water during sandblasting, above a bottom outlet of the pressure vessel as well as means for the controlled introduction of additional pressurized water into the beginning of the hose for the water-sand mixture.
- the blasting nozzle advantageously has the inlet for the sand-water mixture behind the blowing nozzle, through which the additional blowing agent flows, and there is an opening for sandblasting under water
- Blowing agent available from which it can flow in the opposite direction to the blasting agent outlet.
- FIG. 1 schematically, in partial section, the pressure vessel for the sand-pressure water mixture
- Figure 2 shows schematically in section the jet nozzle with the additional propellant supply
- Figure 3 shows the driving nozzle according to Figure 2 for underwater blasting.
- the device according to the invention consists of a pressure vessel 1, on which sieves for O 84/01738
- the pressure vessel 1 has lines for supplying pressurized water, with a nozzle 8 with directed water outlet in the vicinity of the outlet opening 7 for the water-sand mixture ensuring that a fluidized bed is set up, so that a smooth and smooth outflow of the Water-sand mixture from the lower area of the container 1 is set.
- the hose 2 is provided for the outflow of the water-sand mixture 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 propellant line or, when blasting under water, also pressurized water as a propellant for the propelling nozzle 5.
- This additional propellant ensures that, despite relatively low pressurized water consumption, a superior blasting effect can be achieved with the lowest abrasive consumption.
- a Laval or expansion nozzle can be placed behind the actual driving nozzle 5, as shown in FIG. 2, 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 beginning 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 damp-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 diminishes when excess pressure occurs.
- a check valve 16 and a filter 17 ensure that no backwashing with contaminants 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 simple in construction and works safely and it can therefore be said that the problems at hand are ideally solved. ⁇ "
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
- Nozzles (AREA)
- Cleaning In General (AREA)
- Fish Paste Products (AREA)
- Crushing And Pulverization Processes (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Disintegrating Or Milling (AREA)
- Paper (AREA)
- Jet Pumps And Other Pumps (AREA)
Description
Claims
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 true EP0122928A1 (de) | 1984-10-31 |
EP0122928B1 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 (de) |
JP (1) | JPS59502138A (de) |
KR (1) | KR840006458A (de) |
AT (1) | ATE39640T1 (de) |
AU (1) | AU578233B2 (de) |
BR (1) | BR8307590A (de) |
CA (1) | CA1260714A (de) |
DE (2) | DE3239429A1 (de) |
GR (1) | GR79647B (de) |
MX (1) | MX157294A (de) |
WO (1) | WO1984001738A1 (de) |
ZA (1) | ZA837813B (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011074944A1 (en) * | 2009-12-18 | 2011-06-23 | Lasbedrijf Vink B.V. | System and method for blasting objects with a mixture of liquid and abrasive. |
Families Citing this family (9)
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 |
US9925642B2 (en) * | 2010-07-13 | 2018-03-27 | Graco Minnesota Inc. | Wet abrasive blasting system and method |
US10076823B2 (en) * | 2010-07-13 | 2018-09-18 | Graco Minnesota Inc. | Wet abrasive blasting system and method |
US20170334037A1 (en) * | 2014-11-06 | 2017-11-23 | Graco Fluid Handling (B) Inc. | Wet abrasive blast pot |
CN107018653B (zh) | 2014-11-06 | 2019-12-10 | 固瑞克明尼苏达有限公司 | 湿磨料喷射器的控制器 |
Family Cites Families (15)
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 (de) * | 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 |
DE1809677A1 (de) * | 1968-11-19 | 1970-05-21 | Woma Appbau W Maasberg & Co Gm | Strahlduese fuer Hochdruck-Strahleinrichtungen |
DE1809678A1 (de) * | 1968-11-19 | 1970-05-21 | Woma Appbau W Maasberg & Co Gm | Strahllanze |
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 |
-
1982
- 1982-10-25 DE DE19823239429 patent/DE3239429A1/de not_active Ceased
-
1983
- 1983-10-19 GR GR72744A patent/GR79647B/el unknown
- 1983-10-20 ZA ZA837813A patent/ZA837813B/xx unknown
- 1983-10-21 DE DE8383903384T patent/DE3378819D1/de not_active Expired
- 1983-10-21 BR BR8307590A patent/BR8307590A/pt unknown
- 1983-10-21 AU AU21233/83A patent/AU578233B2/en not_active Expired
- 1983-10-21 JP JP83503387A patent/JPS59502138A/ja active Pending
- 1983-10-21 EP EP83903384A patent/EP0122928B1/de not_active Expired
- 1983-10-21 WO PCT/EP1983/000273 patent/WO1984001738A1/de not_active Application Discontinuation
- 1983-10-21 AT AT83903384T patent/ATE39640T1/de not_active IP Right Cessation
- 1983-10-24 KR KR1019830005020A patent/KR840006458A/ko not_active Application Discontinuation
- 1983-10-25 CA CA000439658A patent/CA1260714A/en not_active Expired
- 1983-10-25 MX MX199212A patent/MX157294A/es unknown
Non-Patent Citations (1)
Title |
---|
See references of WO8401738A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011074944A1 (en) * | 2009-12-18 | 2011-06-23 | Lasbedrijf Vink B.V. | System and method for blasting objects with a mixture of liquid and abrasive. |
Also Published As
Publication number | Publication date |
---|---|
ATE39640T1 (de) | 1989-01-15 |
AU2123383A (en) | 1984-05-22 |
GR79647B (de) | 1984-10-31 |
JPS59502138A (ja) | 1984-12-27 |
BR8307590A (pt) | 1984-09-25 |
DE3378819D1 (en) | 1989-02-09 |
MX157294A (es) | 1988-11-11 |
AU578233B2 (en) | 1988-10-20 |
ZA837813B (en) | 1984-06-27 |
EP0122928B1 (de) | 1989-01-04 |
WO1984001738A1 (en) | 1984-05-10 |
DE3239429A1 (de) | 1984-04-26 |
KR840006458A (ko) | 1984-11-30 |
CA1260714A (en) | 1989-09-26 |
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Legal Events
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