WO2016071866A4 - A high velocity abrasive fluid jet cutting device - Google Patents

A high velocity abrasive fluid jet cutting device Download PDF

Info

Publication number
WO2016071866A4
WO2016071866A4 PCT/IB2015/058558 IB2015058558W WO2016071866A4 WO 2016071866 A4 WO2016071866 A4 WO 2016071866A4 IB 2015058558 W IB2015058558 W IB 2015058558W WO 2016071866 A4 WO2016071866 A4 WO 2016071866A4
Authority
WO
WIPO (PCT)
Prior art keywords
abrasive
mixing chamber
gas
section
intake
Prior art date
Application number
PCT/IB2015/058558
Other languages
French (fr)
Other versions
WO2016071866A1 (en
Inventor
Zdenek Riha
Original Assignee
Institute Of Geonics As Cr, V. V. I.
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 Institute Of Geonics As Cr, V. V. I. filed Critical Institute Of Geonics As Cr, V. V. I.
Priority to EP15808460.8A priority Critical patent/EP3215313A1/en
Publication of WO2016071866A1 publication Critical patent/WO2016071866A1/en
Publication of WO2016071866A4 publication Critical patent/WO2016071866A4/en

Links

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
    • B24C1/04—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass
    • B24C1/045—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass for cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • 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
    • B24C7/0046—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

Abstract

The device using a hydrodynamic nozzle for modification of surfaces and material splitting generates an abrasive jet capable of removing material surfaces or splitting/cutting materials with high level of efficiency. The device may consist of the fluid nozzle (21) followed by the mixing chamber (22) and the abrasive nozzle (23). The design of the mixing chamber (22) allows for sucking-in of the gas and solid abrasive particles mixture via the gas and abrasive particles mixture intake (24). The gas and solid abrasive particles mixture is supplied from the reservoir via the distributor (31) and pipeline (35) for abrasive particles and gas mixture intake (24). High efficiency and reliability is achieved by designing the inner shape of the device so that the multi-phase spatial flow was similar to rotation-symmetrical flow to avoid degrading of abrasive particles in the mixing chamber (22) and the abrasive nozzle (23) caused by reverse flow of the gas and solid abrasive particles mixture.

Claims

AMENDED CLAIMS
received by the International Bureau on 16 May 2016
Claims
A high velocity abrasive fluid jet cutting device characterised by the fluid nozzle (21), the mixing chamber (22) and the abrasive nozzle (23) being mutually interconnected on a single axis in the flow direction, while the mixing chamber (22) is of tapered shape in the flow direction, it is delineated by the intake cross-section (22.4) of the mixing chamber (22) and the outlet cross-section (22.3) of the mixing chamber;
discharged into the intake cross-section (22.4) are at least two gas and abrasive mixture intakes (24) mutually centred on the flow axis, and the fluid nozzle (21), while the sum of flow cross-sections of the gas and abrasive intakes (24) is greater than the intake flow cross-section (22.4) of the mixing chamber (22) and the outlet flow cross-section (22.3) of the mixing chamber (22) is smaller than the intake flow cross-section (22.4) of the mixing chamber (22) and the outlet flow cross-section (22.3) of the mixing chamber (22) is discharged into the abrasive nozzle (23).
The high velocity abrasive fluid jet cutting device as per claim 1 characterised by three to four gas and abrasive mixture intakes (24) being discharged into the intake cross-section (22.4) of the mixing chamber (22).
The high velocity abrasive fluid jet cutting device as per claim 1 or 2 characterised by the abrasive nozzle (23) smoothly following up on the mixing chamber (22) and being tapered in the flow direction.
The high velocity abrasive fluid jet cutting device as per claim 1 or 2 characterised by the intake flow cross-section (22.4) of the mixing chamber (22) being twice as large as the outlet flow cross- section (22.3) of the mixing chamber (22).
The high velocity abrasive fluid jet cutting device as per claim 1 or 2 characterised by the flow cross-section of each of the gas and abrasive particles mixture intake (24) being identical to the intake flow cross- section (22.4) of the mixing chamber (22).
The high velocity abrasive fluid jet cutting device as per claim 1 or 2 characterised by the flow cross-section of each of the gas and abrasive particles mixture intake (24) being greater than the intake flow cross- section (22.4) of the mixing chamber (22).
The high velocity abrasive fluid jet cutting device as per claim 1 or 2 characterised by inclusion of an abrasive particles and gas mixture dis- tributor (31) supplying the gas and abrasive mixture intakes (24).
The high velocity abrasive fluid jet cutting device as per claim 7 characterised by gas and abrasive mixture intakes (24) are distributed into an abrasive particles and gas pipeline system and each of the pipelines (35) is discharged into the abrasive particles and gas mixture outlet (32) discharged into the distributor (31).
PCT/IB2015/058558 2014-11-05 2015-11-05 A high velocity abrasive fluid jet cutting device WO2016071866A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15808460.8A EP3215313A1 (en) 2014-11-05 2015-11-05 A high velocity abrasive fluid jet cutting device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZ2014-574 2014-08-15
CZ2014-754A CZ307832B6 (en) 2014-11-05 2014-11-05 High speed abrasive fluid jet cutting tool

Publications (2)

Publication Number Publication Date
WO2016071866A1 WO2016071866A1 (en) 2016-05-12
WO2016071866A4 true WO2016071866A4 (en) 2016-06-30

Family

ID=55910456

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2015/058558 WO2016071866A1 (en) 2014-11-05 2015-11-05 A high velocity abrasive fluid jet cutting device

Country Status (3)

Country Link
EP (1) EP3215313A1 (en)
CZ (1) CZ307832B6 (en)
WO (1) WO2016071866A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3569359A1 (en) * 2018-05-15 2019-11-20 PTV, spol. s.r.o. Abrasive heads with inserted jet
EP3572186A1 (en) * 2018-05-22 2019-11-27 PTV, spol. s.r.o. Abrasive heads with clean gas infeed

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB623651A (en) * 1946-01-07 1949-05-20 Stanislas Morel Improvements in devices for increasing the efficiency of sand-blast guns
US4648215A (en) * 1982-10-22 1987-03-10 Flow Industries, Inc. Method and apparatus for forming a high velocity liquid abrasive jet
EP0119338A1 (en) * 1983-03-17 1984-09-26 Jetin Industrial Limited High pressure liquid cutting apparatus
DE3516103A1 (en) * 1985-05-04 1986-11-06 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München Mixing head for introducing abrasive particles into a high-pressure water jet
US5144766A (en) 1989-11-03 1992-09-08 Flow International Corporation Liquid abrasive cutting jet cartridge and method
US5643058A (en) 1995-08-11 1997-07-01 Flow International Corporation Abrasive fluid jet system
US5782673A (en) * 1996-08-27 1998-07-21 Warehime; Kevin S. Fluid jet cutting and shaping system and method of using
WO2003018259A2 (en) * 2001-08-27 2003-03-06 Flow International Corporation Apparatus for generating a high-pressure fluid jet
US20060223423A1 (en) 2005-04-05 2006-10-05 United Materials International, Llc High pressure abrasive-liquid jet
PL1743740T3 (en) * 2005-07-14 2008-01-31 Haid Rosa Maria Process and device for floor coverings
WO2014052407A1 (en) 2012-09-25 2014-04-03 G.D.O. Inc. Underwater abrasive entrainment waterjet cutting

Also Published As

Publication number Publication date
CZ307832B6 (en) 2019-06-12
CZ2014754A3 (en) 2016-05-18
WO2016071866A1 (en) 2016-05-12
EP3215313A1 (en) 2017-09-13

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