CA1260714A - Method of sandblasting using moist sand, and sandblasting apparatus for carrying out such method - Google Patents
Method of sandblasting using moist sand, and sandblasting apparatus for carrying out such methodInfo
- Publication number
- CA1260714A CA1260714A CA000439658A CA439658A CA1260714A CA 1260714 A CA1260714 A CA 1260714A CA 000439658 A CA000439658 A CA 000439658A CA 439658 A CA439658 A CA 439658A CA 1260714 A CA1260714 A CA 1260714A
- Authority
- CA
- Canada
- Prior art keywords
- sand
- water
- sandblasting
- nozzle
- pressure vessel
- 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
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
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)
- Fish Paste Products (AREA)
- Crushing And Pulverization Processes (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Jet Pumps And Other Pumps (AREA)
- Paper (AREA)
- Disintegrating Or Milling (AREA)
Abstract
TITLE
A METHOD OF SANDBLASTING USING MOIST
SAND, AND SANDBLASTING APPARATUS FOR
CARRYING OUT SUCH METHOD
INVENTOR
Josef KEIZERS
ABSTRACT
A sandblasting apparatus incorporating a novel blas-ting nozzle for moist sand is connected to a pressure vessel via hose and the blasting nozzle is connected to an additional or auxiliary propellent line including a propelling or driving nozzle into which the hose for the water and sand mixture opens. This apparatus includes an inlet port for sand water mixture downstream from the propelling nozzle throughwhich the auxiliary propellent flows. In underwater sandblasting appli-cation an opening for the propellent through which the propel-lent can flow out is also provided. The invention also dis-closes a novel method of sandblasting using moist sand in that water and sand are mixed within a pressure vessel and there-after delivered to the blasting nozzle under pressure while an auxiliary propellent is supplied within the blasting nozzle.
A METHOD OF SANDBLASTING USING MOIST
SAND, AND SANDBLASTING APPARATUS FOR
CARRYING OUT SUCH METHOD
INVENTOR
Josef KEIZERS
ABSTRACT
A sandblasting apparatus incorporating a novel blas-ting nozzle for moist sand is connected to a pressure vessel via hose and the blasting nozzle is connected to an additional or auxiliary propellent line including a propelling or driving nozzle into which the hose for the water and sand mixture opens. This apparatus includes an inlet port for sand water mixture downstream from the propelling nozzle throughwhich the auxiliary propellent flows. In underwater sandblasting appli-cation an opening for the propellent through which the propel-lent can flow out is also provided. The invention also dis-closes a novel method of sandblasting using moist sand in that water and sand are mixed within a pressure vessel and there-after delivered to the blasting nozzle under pressure while an auxiliary propellent is supplied within the blasting nozzle.
Description
~ ~a~
~ ` ~
A method of sandblasting using moist sand, and sandblasting apparatus for carrying out such method The present invention relates to a method of sandblasting with the use of moist sand, and a moist sandblasting apparatus for carrying out such method, the apparatus comprising a blasting sand-filled pressure vessel and feed l;nes for pressurized water.
A method of this type is known, for example, from German Patent 53~,287 or U.S. Patent 3,514,905~ In these methods and the corr-esponding apparatus which, as will be known to the expert, natur-ally also include feed means for the sand to be blasted, it is of disa~vantage that the blasting capacity thereof is too low, that the feed hose to the blasting nozzle per se can be of a limited length only, ~nd that, further, the nozzles for intraducing the pressurized water into the pressure vessel are liable to become clogged in the course of filling or charging of this vessel.
Now, it is the object of the present invention to provide a method and an apparatus for moist sandblasting which no long*r suff~r from the above drawbacks, which ure improved in blasting copacity or performance with lesser consumption of blasting agent or sand, respectively, which may be used even under water up to substantial depths, and in which the moist sandblasting appnrotus ~ccording to . 9~
~ 7 ~
the present invention should be of uncomplicate~ construction, safe and reliable in operation, and easy to control.
In particular, the method and the moist sandblasting apparatus according to the invention should also permit to sandblast such ohjects which are spaced with a substantial distance ~rom the location o~ the apparatus, without lowering the blasting capacity.
In the method according to the present invention, this object is solved in that water and sand are mixed within a pressure vessel and theraEter delivered to a blasting nozzle under pressure, and that auxiliary propellant is supplied within the blasting nozzle.
Preferably, compressed air is used as the propellant;
alternatively, pressurized water may be used as auxiliary or additional propellant for sand blasting work performed under water. Advantageously, for the compensa-ting resistance produced by the blasting nozzle, part of the propellan-t is simultaneously ejected in a direction opposite to the discharge direction of the blasting agent.
In a ~urther embodiment of the invention for generating a uniform blasting agent stream, advantageously a water, sand fluidized bed (layer~ is produced by a water jet within the pressure vessel, and in order to propel the mixture of pressurized water and sand, preferably auxiliary pressurized water may be supplied under control to this mixture after the exit thereo-E from the pressure vessel.
: ~ :
.
As far as the structure is concerned, the moist sandblasting apparatus ~ccording to the invention is characterized in that a blasting nozzle for the moist sand, connected to the pressurQ
vessel via a hose (tube), is provided; the blasting nozzl~ being connected to an additional or auxiliary propelLant line ~nd in-cluding a propelling (driving) nozzle into which the hose for the water~sand mixture opens~
For realizing the abovementioned apparatus features, adv~ntage-ously the moist sandblasting apparatus is further characterized by including above a bottom outlet or drain of the pressure vessel, a nozzle for the supply o~ pressurized water, means for supplying a small continuous stream of pressuri~ed water during the chqrging operation and for .~upplying a strong stream of pressurized water during the sandblasting process, and means for the controlled supply of auxiliary pressurized water into the initial part of the hose for the watsr-sand mixture.
In order to provite for the high blasting c~pacity or per~onm~
~nce with, at the s~me time, reduced consumption of bl~sting sand, in c preferable embodiment the blasting no~zle includ~s the inlet port ~for the sand-water mixture downstream of the propelli~g nozzle through which th~ auxilia~y propellant flows; and for under-water sandblasting there is provided an opening for th~
propellant, through which opening the propellant can flow out opposite to the ~direction) of propellant disoharge.
~ 7 ~ ~
Below, and embodiment of the invention is described in great~r details by referring to drawings, wherein: -Figure 1 is a schematical view, pc.rtially in section, of thepressure vessel for the sand-pressurized woter mixtur2;
Figure 2 is a schematical sectional view of the bl~sting nozzle including the auxiliary propellant svpply means; and Figure 3 is a schematical view of th~ propellina nozzle according to Figure 2 for under-water sandblasting.
As shown in the Figures, the apparatus acs~ording to the invention comprises a pressure vessel 1 which includes in the upper part thereof screens for screening the sand to be blasted, ~nd which includes an inlet port for delivery of the sand and provided with a closure bell. Sub-devices of this type are well known ~nd thesefore need not be explained in detail.
The pressure vessel 1 includes lines ~conduits) for the supply of pressurized w~ter, with a nozzle5 delivering water in a directed flow in the vicinity of the outlet port for the w~ter~s~nd ~ixtvr providing for the generation of a ~luidized bed, such that non-friction and smooth flow-ou~ o~ the water-sand mixture from the lower portion of vessel 1 is secured.
~ ~ ~537 ~ ~
A bypass line 9 is provided in order that ~ given water jet exi~s from the nozzle 8 even during charging of the vessel 1, to thereby prevent finest sand from entering the nozzle. In this way, clogging of the nozzle is prevented from occuring, In the lower central part of the vessel bottom, the ho~e (tube)
~ ` ~
A method of sandblasting using moist sand, and sandblasting apparatus for carrying out such method The present invention relates to a method of sandblasting with the use of moist sand, and a moist sandblasting apparatus for carrying out such method, the apparatus comprising a blasting sand-filled pressure vessel and feed l;nes for pressurized water.
A method of this type is known, for example, from German Patent 53~,287 or U.S. Patent 3,514,905~ In these methods and the corr-esponding apparatus which, as will be known to the expert, natur-ally also include feed means for the sand to be blasted, it is of disa~vantage that the blasting capacity thereof is too low, that the feed hose to the blasting nozzle per se can be of a limited length only, ~nd that, further, the nozzles for intraducing the pressurized water into the pressure vessel are liable to become clogged in the course of filling or charging of this vessel.
Now, it is the object of the present invention to provide a method and an apparatus for moist sandblasting which no long*r suff~r from the above drawbacks, which ure improved in blasting copacity or performance with lesser consumption of blasting agent or sand, respectively, which may be used even under water up to substantial depths, and in which the moist sandblasting appnrotus ~ccording to . 9~
~ 7 ~
the present invention should be of uncomplicate~ construction, safe and reliable in operation, and easy to control.
In particular, the method and the moist sandblasting apparatus according to the invention should also permit to sandblast such ohjects which are spaced with a substantial distance ~rom the location o~ the apparatus, without lowering the blasting capacity.
In the method according to the present invention, this object is solved in that water and sand are mixed within a pressure vessel and theraEter delivered to a blasting nozzle under pressure, and that auxiliary propellant is supplied within the blasting nozzle.
Preferably, compressed air is used as the propellant;
alternatively, pressurized water may be used as auxiliary or additional propellant for sand blasting work performed under water. Advantageously, for the compensa-ting resistance produced by the blasting nozzle, part of the propellan-t is simultaneously ejected in a direction opposite to the discharge direction of the blasting agent.
In a ~urther embodiment of the invention for generating a uniform blasting agent stream, advantageously a water, sand fluidized bed (layer~ is produced by a water jet within the pressure vessel, and in order to propel the mixture of pressurized water and sand, preferably auxiliary pressurized water may be supplied under control to this mixture after the exit thereo-E from the pressure vessel.
: ~ :
.
As far as the structure is concerned, the moist sandblasting apparatus ~ccording to the invention is characterized in that a blasting nozzle for the moist sand, connected to the pressurQ
vessel via a hose (tube), is provided; the blasting nozzl~ being connected to an additional or auxiliary propelLant line ~nd in-cluding a propelling (driving) nozzle into which the hose for the water~sand mixture opens~
For realizing the abovementioned apparatus features, adv~ntage-ously the moist sandblasting apparatus is further characterized by including above a bottom outlet or drain of the pressure vessel, a nozzle for the supply o~ pressurized water, means for supplying a small continuous stream of pressuri~ed water during the chqrging operation and for .~upplying a strong stream of pressurized water during the sandblasting process, and means for the controlled supply of auxiliary pressurized water into the initial part of the hose for the watsr-sand mixture.
In order to provite for the high blasting c~pacity or per~onm~
~nce with, at the s~me time, reduced consumption of bl~sting sand, in c preferable embodiment the blasting no~zle includ~s the inlet port ~for the sand-water mixture downstream of the propelli~g nozzle through which th~ auxilia~y propellant flows; and for under-water sandblasting there is provided an opening for th~
propellant, through which opening the propellant can flow out opposite to the ~direction) of propellant disoharge.
~ 7 ~ ~
Below, and embodiment of the invention is described in great~r details by referring to drawings, wherein: -Figure 1 is a schematical view, pc.rtially in section, of thepressure vessel for the sand-pressurized woter mixtur2;
Figure 2 is a schematical sectional view of the bl~sting nozzle including the auxiliary propellant svpply means; and Figure 3 is a schematical view of th~ propellina nozzle according to Figure 2 for under-water sandblasting.
As shown in the Figures, the apparatus acs~ording to the invention comprises a pressure vessel 1 which includes in the upper part thereof screens for screening the sand to be blasted, ~nd which includes an inlet port for delivery of the sand and provided with a closure bell. Sub-devices of this type are well known ~nd thesefore need not be explained in detail.
The pressure vessel 1 includes lines ~conduits) for the supply of pressurized w~ter, with a nozzle5 delivering water in a directed flow in the vicinity of the outlet port for the w~ter~s~nd ~ixtvr providing for the generation of a ~luidized bed, such that non-friction and smooth flow-ou~ o~ the water-sand mixture from the lower portion of vessel 1 is secured.
~ ~ ~537 ~ ~
A bypass line 9 is provided in order that ~ given water jet exi~s from the nozzle 8 even during charging of the vessel 1, to thereby prevent finest sand from entering the nozzle. In this way, clogging of the nozzle is prevented from occuring, In the lower central part of the vessel bottom, the ho~e (tube)
2 for discharge of the water-sand mixture is provided; further~
there are provided means 10 for f*2ding quxiliary water into the initial part of the hose 2, which means, depending on the hose length snd back pressure, boost or promote conveyance of the wator-sand mixture.
Via hose ~, the watsr-sand mixture i.s ~el~ r~ to ~ bla.~ting noz~le 3 which, through an dditional propellant line (conduit), is supplied with compressed ai.r or, in vnder-water sandblasting, also with pressvrized water a5 a propellant ~or the propelling nozzle 5. With such auxiliary propellan~, it is secured that a superior blasting effect with a minimu~ of blasting agent consumed may be achieved regardless of relatively low consumptions of pressuri~ed water.
In order to comply with the most varied requirements, ~ccord-ing to Figure 2 a LGval or expansion noz~e opening into ~ funnel 11 may be attached downstreqm of the propelling nozzle 5 proper.
For underwater sandblastin~, the funnel 11 ls affixed in ~ront of the nozzel so that most of the propellant (water) with the entrained sand flows down the centre of the funnel to eventually strike the surEace to be blasted under the water.
Since this propellant stream is strong in the surrounding water media a good momentum is emparted with the effective result that the severe force against this flow stream is created and impacts upon the nozzel and the operator pushing them backwards away from the blasting surface. To balance this backward force, a part of the auxiliary stream is flowed out along the outside surface of the funnel 11 to strike the funnel flare shown and this portion of the auxiliary flow is deflected backwards toward the funnel and hence causes an outwardly deflected reverse auxiliary flow which counter acts the reverse force of the propellant stream and essentially balances the opposing force against the operator and nozzle provided by the propellant stream. The funnel 11 may be affixed to a conventional blas-ting nozzle and as such, is operated in well-known manner by means of a handle 12.
Upon charging with sand and pressurized water, the moist sandblasting apparatus according to the invention operates automa-tically in response to actua-tion of handle 12, and auxiliary water is fed into the initial portion of the hose 2 through a remote-controlled valve 13. The quantity of this auxiliary water may be controlled by means 10 comprising a series of valves and overflow lines.
The moist sandblasting pressure vessel is protected by a reduction valve 10 and an overpressure safety valve 15, in such a way that only the desired pressure within the vessel is produced, and any overpressure produced in reduced automatically.
The moist sandblasting apparatus according to the invention may be employed universally; it is of uncomplicated construction and safe and reliable in operation. It may there~ore be spoken of an ideal solution to the exis-ting problems.
there are provided means 10 for f*2ding quxiliary water into the initial part of the hose 2, which means, depending on the hose length snd back pressure, boost or promote conveyance of the wator-sand mixture.
Via hose ~, the watsr-sand mixture i.s ~el~ r~ to ~ bla.~ting noz~le 3 which, through an dditional propellant line (conduit), is supplied with compressed ai.r or, in vnder-water sandblasting, also with pressvrized water a5 a propellant ~or the propelling nozzle 5. With such auxiliary propellan~, it is secured that a superior blasting effect with a minimu~ of blasting agent consumed may be achieved regardless of relatively low consumptions of pressuri~ed water.
In order to comply with the most varied requirements, ~ccord-ing to Figure 2 a LGval or expansion noz~e opening into ~ funnel 11 may be attached downstreqm of the propelling nozzle 5 proper.
For underwater sandblastin~, the funnel 11 ls affixed in ~ront of the nozzel so that most of the propellant (water) with the entrained sand flows down the centre of the funnel to eventually strike the surEace to be blasted under the water.
Since this propellant stream is strong in the surrounding water media a good momentum is emparted with the effective result that the severe force against this flow stream is created and impacts upon the nozzel and the operator pushing them backwards away from the blasting surface. To balance this backward force, a part of the auxiliary stream is flowed out along the outside surface of the funnel 11 to strike the funnel flare shown and this portion of the auxiliary flow is deflected backwards toward the funnel and hence causes an outwardly deflected reverse auxiliary flow which counter acts the reverse force of the propellant stream and essentially balances the opposing force against the operator and nozzle provided by the propellant stream. The funnel 11 may be affixed to a conventional blas-ting nozzle and as such, is operated in well-known manner by means of a handle 12.
Upon charging with sand and pressurized water, the moist sandblasting apparatus according to the invention operates automa-tically in response to actua-tion of handle 12, and auxiliary water is fed into the initial portion of the hose 2 through a remote-controlled valve 13. The quantity of this auxiliary water may be controlled by means 10 comprising a series of valves and overflow lines.
The moist sandblasting pressure vessel is protected by a reduction valve 10 and an overpressure safety valve 15, in such a way that only the desired pressure within the vessel is produced, and any overpressure produced in reduced automatically.
The moist sandblasting apparatus according to the invention may be employed universally; it is of uncomplicated construction and safe and reliable in operation. It may there~ore be spoken of an ideal solution to the exis-ting problems.
Claims (9)
1. A method of sandblasting using moist sand, characterized in that water and sand are mixed within a pressure vessel and thereafter delivered to a blasting nozzle under pressure, and that auxiliary propellant is supplied within the blasting nozzle discharged most of it in a direction of discharge of the blasting agent, part of it in the direction opposite thereto.
2. The method as claimed in claim 1, characterized by using compressed air as the propellant.
3. The method as claimed in claim 1, characterized in that pressurized water is used as the propellant for under-water sandblasting.
4. The method as claimed in claim 1, 2 or 3, characterized in that a water-sand fluidized bed is produced within the pressure vessel by at least one water jet, during the moist sandblasting process.
5. The method as claimed in claim 1, 2 or 3, characterized in that a water-sand fluidized bed is produced within the pressure vessel by at least one water jet, during the moist sandblasting process, characterized in that a water jet is discharged from the fluidized bed-producing nozzle during charging of sand into the pressure vessel, thereby to prevent finest (particle) sand from entering the nozzle.
6. The method as claimed in claim 1, 2 or 3, characterized in that a water-sand fluidized bed is produced within the pressure vessel by at least one water jet, during the moist sandblasting process, characterized in that for the compensation of the repulsion produced by the blasting nozzle, the propellant is discharged also in a direction opposite to the direction of discharge of the sandblasting agent, characterized in that auxiliary pressurized water is supplied under control to the water-sand mixture after the exit thereof from the pressure vessel.
7. A moist sand blasting apparatus for sandblasting a surface comprising a pressure vessel filled with blasting sand, and feed lines for pressurized water, characterized in that a blasting nozzle is connected to the pressure vessel by a hose, to a source of sand entrained in water, and is also connected to a secondary propellant line including a propellant orfice communicating with the nozzle said propellant orfice including at least one opening for ejecting propellant in a direction opposite to the direction of blasting agent discharge.
8. The apparatus as claimed in claim 7 wherein the propellant orfice is upstream to the blasting nozzle.
9. The moist sandblasting apparatus as claimed in claims 7 or 8 characterized by including above a bottom outlet or drain of the pressure vessel, a nozzle for the supply of pressurized water, means for supplying a small continuous stream of pressurized water during the charging operation and for supplying a strong stream of pressurized water during the sandblasting process, and means for the controlled supply of auxiliary pressurized water into the initial part of the hose for the water-sand mixture.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP3239429.2 | 1982-10-25 | ||
| DE19823239429 DE3239429A1 (en) | 1982-10-25 | 1982-10-25 | METHOD AND DEVICE FOR OPERATING A HIGH-PRESSURE HEATER |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1260714A true CA1260714A (en) | 1989-09-26 |
Family
ID=6176526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000439658A Expired CA1260714A (en) | 1982-10-25 | 1983-10-25 | Method of sandblasting using moist sand, and sandblasting apparatus for carrying out such method |
Country Status (12)
| Country | Link |
|---|---|
| EP (1) | EP0122928B1 (en) |
| JP (1) | JPS59502138A (en) |
| KR (1) | KR840006458A (en) |
| AT (1) | ATE39640T1 (en) |
| AU (1) | AU578233B2 (en) |
| BR (1) | BR8307590A (en) |
| CA (1) | CA1260714A (en) |
| DE (2) | DE3239429A1 (en) |
| GR (1) | GR79647B (en) |
| MX (1) | MX157294A (en) |
| WO (1) | WO1984001738A1 (en) |
| ZA (1) | ZA837813B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012009325A1 (en) * | 2010-07-13 | 2012-01-19 | Keith Eliason | Wet abrasive blasting system and method |
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 (en) * | 1987-07-06 | 1989-01-19 | Pro Aqua Geraete Gmbh | Apparatus for producing a granule/fluid mixture under high pressure |
| DE4012435A1 (en) * | 1989-05-09 | 1990-11-15 | Abrex Oberflaechentechnik Gmbh | Sand blasting installation using wet sand - has sand contained in pressure vessel with outlet connected to nozzle |
| DE8907765U1 (en) * | 1989-06-24 | 1989-10-05 | Keizers, geb. Kalle, Sigrid, 46325 Borken | Device for separating liquid from granular or granular blasting media |
| DE4035358A1 (en) * | 1990-11-07 | 1992-05-21 | Johannes Dieter | Disposal of asbestos containing material is removed from its supporting substrate by high pressure water jets and put in receptacle, together with water and heated furnace for converting into harmless form |
| NL1037571C2 (en) * | 2009-12-18 | 2011-06-21 | Lasbedrijf Vink B V | SYSTEM FOR RADIATING OBJECTS WITH A MIXTURE OF LIQUID AND ABRASIVE. |
| US10076823B2 (en) * | 2010-07-13 | 2018-09-18 | Graco Minnesota Inc. | Wet abrasive blasting system and method |
| BR112017007722A2 (en) * | 2014-11-06 | 2017-12-19 | Graco Fluid Handling B Inc | inlet water control, and wet abrasive blasting system. |
| US20170334037A1 (en) * | 2014-11-06 | 2017-11-23 | Graco Fluid Handling (B) Inc. | Wet abrasive blast pot |
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 (en) * | 1930-10-24 | 1931-10-08 | Badische Maschinenfabrik & Eis | Pressure vessel for devices for cleaning castings by means of a pressurized water-sand mixture |
| 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 (en) * | 1949-05-11 | 1951-12-27 | Gen Presswork & Stampings Ltd | Methods and machines for polishing sinkers, dividers and loop-forming tools in knitting machines |
| NL92868C (en) * | 1952-05-31 | |||
| DE1268514B (en) * | 1962-11-17 | 1968-05-16 | Vacu Blast Ltd | Device for whirling through and measuring a stream of finely divided abrasive particles |
| 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 (en) * | 1968-11-19 | 1970-05-21 | Woma Appbau W Maasberg & Co Gm | Jet lance |
| DE1809677A1 (en) * | 1968-11-19 | 1970-05-21 | Woma Appbau W Maasberg & Co Gm | Jet nozzle for high pressure jet devices |
| JPS5824230B2 (en) * | 1976-07-22 | 1983-05-19 | 石川島播磨重工業株式会社 | Abrasive material injection device for polishing machine |
| 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 (en) * | 1979-08-22 | 1981-03-12 | Myers-Europe Pumpen GmbH, 4300 Essen | WET SANDJET METHOD AND DEVICE FOR CARRYING OUT THE METHOD |
-
1982
- 1982-10-25 DE DE19823239429 patent/DE3239429A1/en not_active Ceased
-
1983
- 1983-10-19 GR GR72744A patent/GR79647B/el unknown
- 1983-10-20 ZA ZA837813A patent/ZA837813B/en unknown
- 1983-10-21 WO PCT/EP1983/000273 patent/WO1984001738A1/en not_active Application Discontinuation
- 1983-10-21 JP JP83503387A patent/JPS59502138A/en active Pending
- 1983-10-21 DE DE8383903384T patent/DE3378819D1/en not_active Expired
- 1983-10-21 BR BR8307590A patent/BR8307590A/en unknown
- 1983-10-21 AT AT83903384T patent/ATE39640T1/en not_active IP Right Cessation
- 1983-10-21 EP EP83903384A patent/EP0122928B1/en not_active Expired
- 1983-10-21 AU AU21233/83A patent/AU578233B2/en not_active Expired
- 1983-10-24 KR KR1019830005020A patent/KR840006458A/en not_active Application Discontinuation
- 1983-10-25 CA CA000439658A patent/CA1260714A/en not_active Expired
- 1983-10-25 MX MX199212A patent/MX157294A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012009325A1 (en) * | 2010-07-13 | 2012-01-19 | Keith Eliason | Wet abrasive blasting system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| AU578233B2 (en) | 1988-10-20 |
| BR8307590A (en) | 1984-09-25 |
| DE3239429A1 (en) | 1984-04-26 |
| DE3378819D1 (en) | 1989-02-09 |
| KR840006458A (en) | 1984-11-30 |
| EP0122928B1 (en) | 1989-01-04 |
| EP0122928A1 (en) | 1984-10-31 |
| MX157294A (en) | 1988-11-11 |
| WO1984001738A1 (en) | 1984-05-10 |
| ZA837813B (en) | 1984-06-27 |
| JPS59502138A (en) | 1984-12-27 |
| ATE39640T1 (en) | 1989-01-15 |
| GR79647B (en) | 1984-10-31 |
| AU2123383A (en) | 1984-05-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3994097A (en) | Abrasive or sand blast apparatus and method | |
| JP2963158B2 (en) | Slurry pumping type blasting machine | |
| CA1260714A (en) | Method of sandblasting using moist sand, and sandblasting apparatus for carrying out such method | |
| EP0276219B1 (en) | Feeding abrasive material | |
| US3808631A (en) | Device for removing a sludge from a surface | |
| US5800246A (en) | Abrasive blasting apparatus | |
| US4330968A (en) | Two-tank high water pressure wet blasting machine with separate supply reservoir for abrasive particles | |
| EP0746418A4 (en) | Aspirating nozzle and accessory systems therefor | |
| JPH0258065B2 (en) | ||
| CA2045448C (en) | Flotation machine | |
| EP1450988B1 (en) | Abrasive blasting apparatus | |
| US5421767A (en) | Media control valve | |
| US2530689A (en) | Powder dispenser | |
| US4548001A (en) | Cleaning apparatus and method | |
| JPS62501490A (en) | Polishing jet generator | |
| US5431594A (en) | Pressurization system for abrasive supply pot | |
| US4010938A (en) | Metal treatment gun and method | |
| US2366763A (en) | Hydraulic sand feeder | |
| JP2002103230A (en) | Method of polishing surface | |
| JP2020019089A (en) | Injection nozzle device | |
| JP2720208B2 (en) | Cleaning equipment | |
| JP2893123B2 (en) | Abrasive jet processing equipment for underwater use | |
| JP2687048B2 (en) | Jet pump for fluid flow | |
| JP2589074B2 (en) | Apparatus for injecting a mixture of abrasive and carrier liquid | |
| JPH0790838A (en) | Underground slurry discharge engineering and its device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |