EP0303313A1 - Dispositif pour le coupage, le forage ou usinage similaire de la pierre, du béton ou similaire - Google Patents

Dispositif pour le coupage, le forage ou usinage similaire de la pierre, du béton ou similaire Download PDF

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Publication number
EP0303313A1
EP0303313A1 EP88201560A EP88201560A EP0303313A1 EP 0303313 A1 EP0303313 A1 EP 0303313A1 EP 88201560 A EP88201560 A EP 88201560A EP 88201560 A EP88201560 A EP 88201560A EP 0303313 A1 EP0303313 A1 EP 0303313A1
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EP
European Patent Office
Prior art keywords
nozzle head
nozzle
pendulum tube
rock
control line
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
EP88201560A
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German (de)
English (en)
Other versions
EP0303313B1 (fr
Inventor
Charles Loegel
Isabelle Geb. Loegel Durr
Sylvie Geb. Loegel Reichert
Patrick Loegel
Francine Geb. Loegel Schneider
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.)
CIWJ Internationale du Water Jet Cie
Original Assignee
CIWJ Internationale du Water Jet Cie
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 CIWJ Internationale du Water Jet Cie filed Critical CIWJ Internationale du Water Jet Cie
Publication of EP0303313A1 publication Critical patent/EP0303313A1/fr
Application granted granted Critical
Publication of EP0303313B1 publication Critical patent/EP0303313B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/60—Slitting by jets of water or other liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/004—Severing by means other than cutting; Apparatus therefor by means of a fluid jet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets

Definitions

  • the invention relates to a device for cutting and drilling in particular rock, ore, natural rock, concrete or the like or for processing objects with the aid of a pressure medium under high pressure of the type mentioned in the preamble of claim 1.
  • a nozzle head is deflected transversely to the direction of the jet of pressure medium emerging from a nozzle opening by means of a drive unit in oscillating movements.
  • Ultrasonic transducers, electromechanical transducers and also mechanically or hydraulically driven ones are used as drive units.
  • the nozzle head itself is mounted in bearings so that it can either be moved linearly or pivoted about a bearing shaft.
  • this bearing wears out quickly when working with oscillating movements of relatively high frequency, which are recommended for productive cutting.
  • the object of the invention is to improve the functionality of the device of the type mentioned at the outset.
  • it is particularly desirable to design relatively narrow devices, which also offer the possibility of working in long and narrow slots, bores and the like, for example in rock.
  • the device should have a long service life.
  • the purpose is to improve the functionality of the nozzle head with little manufacturing effort and little space. It is desirable to quickly process, for example, slot-like clearing of rock, flötz and the like. the like, in particular also of great hardness such as granite and marble.
  • part of the supply line is designed as a pendulum tube, on which the drive unit may engage via a clutch unit.
  • a "pendulum tube” is understood here to mean in particular such a supply part to the nozzle head which executes when machining such a movement that the nozzle head executes a back and forth or a circular or even oval movement in particular in such a plane which essentially essentially runs at right angles to the axis of the nozzle or center nozzle. This "oscillating" movement in lateral view deflects the beam laterally.
  • the beam Due to the "oscillating" or oscillating movement, the beam describes a straight or curved line when it strikes the object to be processed (provided that a point of impact is assumed and the device is assumed to be at rest, apart from the "oscillating" supply part).
  • the drive unit is supported on a control line which extends essentially parallel to the supply line.
  • the control line directs the energy source to excite the drive unit, e.g. also mechanical rotary movements i.e. kinetic energy, to the drive unit and has a guide for the pendulum tube, which can also be formed by the drive unit itself.
  • the drive unit e.g. also mechanical rotary movements i.e. kinetic energy
  • the pendulum tube itself can be made relatively rigid and can be coupled to the feed line in particular via a bendable and / or pivotable coupling. It is recommended if the pendulum tube is also connected to the control line via one or more springs, so that the drive is transmitted by the drive unit via the spring in even better oscillating movements. However, it is also possible to use a pendulum tube that is bendable, but still sufficiently rigid, so that the nozzle head is adequately supported and guided by the pendulum tube itself. The latter alternative is even preferred; the nozzle head is attached to the free end of a bendable high pressure hose that can be expanded somewhat under internal pressure.
  • the nozzle head has several nozzles at such different angles of attack that the axes of the same are not in a common straight plane.
  • the nozzle axes should be offset from the longitudinal axis of the nozzle head.
  • a combined jet of the pressure medium is emitted from the nozzle head, the individual jets emanating from the individual nozzles, in contrast to the device mentioned above, not in a straight plane, in the manner of a fan, but in one or more curved and / or kinked planes run.
  • a nozzle head with a center nozzle and a side nozzle that is laterally offset and inclined outwards from the jet direction of the center nozzle offers particular advantages. If the nozzle head is moved in a circular path, for example, the individual jets also sweep circular paths that partially overlap and, when the device is moved transversely to the pendulum tube or high-pressure hose and the control line, work even better out of a slit-shaped path from the irradiated rock or rock.
  • no nozzles are screwed onto the face of the nozzle head.
  • the nozzle head has an elastomeric cover on the front are provided and insert nozzles are inserted from a nozzle chamber into connecting channels of the nozzle head, which is made in particular of hard metal.
  • the pressure medium inevitably presses the respective insert nozzle against stops which limit the connecting channels and form the transition points to the nozzles.
  • the insert nozzles nor their receptacles in the nozzle head have to be threaded, so that insert nozzles made of sapphire can also be used.
  • the design of the nozzle head according to the invention can be used not only in the device according to the invention with a pendulum tube and, in particular, in parallel control line, but also in a device known per se (DE-OS 34 10 981), in which a flexible or bendable high-pressure hose as a feed line to the nozzle head, which is caused by the ejected pressure medium itself - without a drive unit - in lashing movements or by a combination of a driving force from the pressure medium flowing through itself and by a drive unit in circular, shock-like and / or wave-like movement.
  • the wavy movement of the high pressure hose (in a plane running through its axis) is extremely beneficial.
  • a pipe as a pressure medium supply line 12 is rigidly connected via connecting webs 36 to the control line 31, which is also designed as a pipe; the tube 12 and the control line 31 run parallel.
  • a coupling 11 is attached, which connects the pendulum tube 30 with the tube 12 connects so that the pendulum tube 30 around the articulation point of the clutch 11 in oscillating motion - as indicated in broken lines - by, for example, the pivot angle ⁇ can be brought.
  • a high-pressure hose HP hose
  • HP hose high-pressure hose
  • the pendulum tube 30 is supported on the guide 6, which protrudes laterally from the control line 31.
  • a nozzle head 3 At the free end of the pendulum tube 30 there is a nozzle head 3, on the front side of which at least one nozzle is arranged, through which pressure medium can be expelled in the direction of the rock 15 under high pressure during operation.
  • the oscillating movement of the pendulum tube 30 and therefore also of the nozzle head 3 which is oscillating to the right and left by the pivoting angle ⁇ is caused by a drive unit 32 which is attached to the control line 31 and by an energy source, for example kinetic, electrical, electrical. Magnetic, pneumatic or hydraulic energy can be driven, which is guided through the control line 31 to the drive unit 32.
  • a plunger 33 of the drive unit 32 briefly pushes the pendulum tube 30 in the direction facing away from the control line 31.
  • a spring 34 is tensioned, which on the one hand prevents the pendulum tube 30 from being deflected too far, and on the other hand pulls the pendulum tube 30 back in the opposite direction, that is to say to the control line 31.
  • the pendulum tube 30 between the coupling 11 and the nozzle head 3 is of sufficient length to cause sufficiently wide deflections on the nozzle head 3 even by slight deflection by means of the tappet 33 of the drive unit 32, because this would result in the effectiveness of the pressure medium when it strikes on the rock 15 is improved.
  • the drive unit 32 acts on the pendulum tube 30 substantially further than the spring 34 in the direction of the coupling 11.
  • the sensor element 35 is in particular an electrical one, the electrical signal lines of which are led through the control line 31 to a control unit (not shown here).
  • the drive unit 32 is arranged relatively close to the clutch 11.
  • a drive rod 33a forms a relatively long arm between the free end 33c pressing against the pendulum tube 30 and a pivot axis 33b, about which the drive rod 33a and the actuating arm 33d connected in one piece and offset by approximately 90 ° can be pivoted when it is driven by the drive unit 32 is driven to a certain extent in a direction parallel to the control line 31 (counterclockwise).
  • the actuating arm 33d is a multiple, in particular four times shorter, than the drive rod 33a, only a slight movement of the free end of the actuating arm 33d in the axial direction of the control line 31 leads to a substantially greater movement of the free end 33c of the actuating rod 33a in one transverse to this direction. Since with at high pressures of, for example, 2000 bar, the pressure medium conducted from the pipe 12 to the nozzle head 3 Pendulum movement of the pendulum tube 30 is not inhibited because the coupling 11 acting as a pendulum joint may become too rigid, it is advisable to conduct the pressure medium from the tube 12 to the pendulum tube 30 via an attachable high pressure (HP) hose as a connecting line 41.
  • the connecting line 41 forms a coupling. It is led out of the tube 12 via connecting sleeves 42 and 43 and into the pendulum tube 42.
  • the nozzle head 3 is essentially rectangular in plan view, but it can also be essentially cylindrical.
  • the nozzle head according to FIG. 5 is provided on the front outer or front surface with an elastomeric coating layer 19 made of rubber, which extends both over the two outwardly inclined front surfaces 21, 22 and over the central end surface 23 , which runs at right angles to the axis 25 of the nozzle head 3, which is made of hard metal.
  • the chamber 7 On the other side of the nozzle head 3 is the chamber 7, on the annular side surface of which a connection piece 20 is arranged, with which the nozzle head 3 can be screwed onto the coupling member 1c of the pendulum tube 30 according to FIG. 8. If pressurized medium flows through the pendulum tube 30 into the chamber 7, it presses the cylindrical insert nozzles 17 made of sapphire onto the ends of the connecting channels 5 * b, which the chamber 7 with the nozzle outlets 5 spread outward in relation to the nozzle head axis 25 * a connect via the cylindrical nozzles 5a and the nozzle cones 17b.
  • the diameter of the nozzle outputs 5 * a is smaller than the diameter of the connecting channels 5 * b, so that such stops or shoulders 27 are formed for the insert nozzles 17.
  • the diameters of the nozzles 5a are considerably smaller than the diameters of the nozzle outlets 5 * a.
  • the nozzle cones 5b open from the nozzles 5a in the direction of the nozzle chamber 7.
  • the insert nozzles 17 are as close as possible to the end face in the area of the coating layer 19 of the nozzle head 3 is brought up, ie that the distance D between the shoulders 27 and the interface between the hard metal body of the nozzle head 3 and the coating layer 19 is chosen to be just large enough that there is no risk of breakout even at high pressures of the medium.
  • the two nozzle outputs 5 * a1 and 5 * a3 end on the flat end face 23, while the two nozzles 5 * a2 and 5 * a4 each end on one of the inclined front surfaces 21 and 22.
  • the axis 26 of the connecting channels 5 * b and thus the nozzles 5a are arranged at angles of incidence ⁇ with respect to the nozzle axis 25. 4 clearly shows that the axis 261 is inclined with respect to the axis 25 of the nozzle head 3, which is not to be expected according to FIG. 5.
  • the pressure medium While the pressure medium is still compressed to the nozzles 5a via the nozzle cones 5b tapering at the spreading angle ⁇ , the pressure medium, in particular water, relaxes behind it first behind the region of the nozzles 5a and then outside the nozzle head 3 and its coating layer 19 In contrast to Fig. 6/7, the single beam should remain "compact" as much as possible rather than diverge. Therefore, the nozzle head 3 is as close as possible, e.g. up to a few centimeters, brought up to the rock.
  • the pressure medium in the direction of the arrow passes from the pendulum tube 30 into the chamber 7 and from there out of the nozzles 5a out of the nozzle head 3. From a pressure of about 250 bar, the oscillating nozzle head 3 swings back and forth between the stops 4 even more or less quickly without a separate drive unit 32, so that a "milling" effect in the rock 15 or the like is achieved without contact between the nozzle head 3 and the rock 15 exists.
  • the device has as a feed line a pendulum tube 30, here in the form of a slightly resiliently bendable high-pressure hose, with a nozzle head 3 and nozzles 5a on the end face, and a guide 6 with stops 4 and springs in the form of spring-elastic buffers 4a.
  • the latter preferably has a guide 2 which, together with the nozzle head 3 and in cooperation with the guide 6, leads to a striking or high-frequency movement Vibration of the pendulum tube 30 and the nozzle head 3 leads between the stops 4 according to the swivel angle ⁇ .
  • the pendulum tube 30 is preferably provided with reinforcing sleeves in the area of the stops 4.
  • the cutting width C can be set so that the guide 6 with the walls 14 holding it can track the cut 16.
  • the pendulum tube 30 oscillates around the coupling 11 with the pressure medium supply line 12.
  • the pendulum tube 30 can also be a rigid tube, provided that it carries out the desired pendulum movement, but there is a certain elasticity to achieve "whip-like" deflections cheaper.
  • a coupling 11 is used to connect a pressure medium line 12.
  • the stops 4 can also consist of a resilient material such as rubber. With these stops 4, a longer service life compared to an embodiment without such stops 4 is possible.
  • the guide 6 can be supported on the walls 14, which are connected by straight (FIG. 7) or curved (FIG. 8) end walls 13, but it can also have other shapes, for example a sieve-like reinforcement, through which the material removed during the cutting process can flow off with the medium.
  • the guide 6 can be fastened with the screw bolts 13a.
  • the elongated structural unit which is only interrupted at the interruption points U in the illustration, but in practice is continuous, is composed of the following parts:
  • the pressure medium supply line 12 is designed as a straight steel tube and extends from the connection point 1b for connecting a pressure medium line to the coupling 11 parallel to the control line 31, which is also designed as a steel tube, and is welded to it via the connecting webs 36.
  • a rotatable shaft 102 is mounted within the steel tube of the control line 31 and can be driven by a hydraulic motor 101 at the end shown on the left in FIG. 9 and is connected at its other end projecting at the free end of the control line 31 to an eccentric element serving as a drive unit 32 .
  • the clutch element 103 moved by the eccentric element acting in the manner of a crank in a circular path; it also takes the connection piece 1c at the free end of the bendable pendulum tube 30 in the form of a to some extent even inflatable, ie flexible, high-pressure hose, so that the nozzle head 3, which is interchangeably screwed onto the connection piece 1c, forms a circular with the rotation of the shaft 102 Performs movement.
  • Corresponding circular paths sweep the beams 5b1, 5b2 of the pressure medium emitted by the nozzle head 3, as will be explained in more detail with reference to FIG. 13.
  • the motor 101 can drive the shaft 102 and therefore also the nozzle head 3 at a frequency between 1500 and 10000 rpm, ie between 25 and approximately 167 Hz.
  • FIG. 10 which shows a partial section AA according to FIG. 9, legs 6a of a bow-shaped guide 6 extend on both sides of the control line 31 with the shaft 102 mounted therein.
  • the two legs 6a are connected at the bottom by a web 6b, so that the circular or oval movement path of the HD hose serving as a pendulum tube 30 can additionally be guided.
  • the free ends of the legs 6a are welded to the sides of the extension piece 100, which serves to receive the sensor element 35 and a line 35a leading to it.
  • the sensor element 35 can be movable in the longitudinal direction of the extension piece 100 in order to actuate a contact when striking a surface.
  • the sensor element 35 can also be rigidly connected to the spike-like extension 100; in any case, the sensor element 35 should protrude in the longitudinal direction LR of the lancet-like, elongated device over the nozzle head 3, in order to ensure that it is protected against striking against solid objects, namely at the end.
  • the guide element 6 which surrounds the "oscillating" HD tube 30 on a circular path in a bow-like manner should leave such a free space between the mutually facing sides of the legs 6a that the HD tube 30 is not hindered in its path of movement, which is that of the eccentric element trained drive member 32 is caused.
  • the HD hose due to its bendable and even slightly flexible design using elastomeric material, such as rubber, which even allows a certain amount of inflation when the pressure medium is passed through, oscillates, as is shown schematically in FIG. 12 are shown.
  • the HP hose 30 may be at rest, while at the outer end D, to which the nozzle head 3 is fastened, one that is reciprocating in the plane of the drawing oscillating movement, but actually - as will be clarified with reference to FIG. 13 - executes a circular movement in such a plane which runs practically perpendicular or normal or at 90 ° to the nozzle axis.
  • Suitable prints are between 1500 and 2500 bar.
  • the design of the nozzle head 3 is a means of setting optimal conditions depending on the object to be machined or removed in connection with the movement of the nozzle head 3.
  • the nozzle head 3 is provided with a central nozzle and with two side nozzles.
  • the center nozzle directs a center jet 5b2 in the longitudinal or axial direction of the nozzle head 3, while the side jets 5b1, 5b3 are offset by an angle of attack ⁇ of about 20 °.
  • the rays 5b1 5b2 and 5b3 essentially each point on the surface of the rock 15 or the already formed channel-shaped "milling" 16. Since the nozzle head 3 is in the said circular movement, these impingement of the rays 5b1, 5b2, 5b3 corresponding to the broken circles K1, K2 and K3 of Fig.
  • a beneficial effect is that in the course of the feed movement of the device in the direction of arrow Y according to FIG. 13 overlap areas U 1/2 and U 2/3 between adjacent circles K 1 / K 2 on the one hand and K 2 / K 3 on the other hand, while in the peripheral areas, that is to say the edges of the channel 16, no such overlaps occur.
  • a distance between the front end of the nozzle head 3 and the area to be covered by the rays 5b1, 5b2 and 5b3 of the rock 15 of about 1 to 2 cm and the use of these three nozzles is at a pressure of 2000 bar and a frequency of 50 Hz a removal rate of 15 m2 / h for sandstone and an unexpectedly high removal rate of 3 m2 / h for granite.
  • Here has the center jet 5b2 a throughput of 8 l / min and the side jets 5b1, 5b3 a larger throughput of 14 l / min of the pressure medium consisting of water.
  • Figs. 14 and 15 The alternative to the device of Fig. 9 is shown in Figs. 14 and 15.
  • the eccentric element or drive unit 32 is not a crank piece, but rather the shaft end 102a bent at an angle of approximately 10-25 ° to the longitudinal axis of the shaft 102, onto which a bushing as an eccentric element or drive unit 32 is attached and fastened.
  • This socket is fixedly connected via a rigid arm serving as coupling element 103 to the connector 1c, which is located at the end of the high-pressure hose 30 and is fixedly attached there by means of a connecting sleeve 30a.
  • the nozzle head 3 is not shown in FIG. 15.
  • the shaft 102 is supported at the end of the control line 31 - a tube - by means of a bearing 31b, so that the shaft end 103a rotates about the axis of rotation determined by the bearing 31b and, due to the angle ⁇ , also gives the connecting piece 1c and the nozzle head 3 an oscillating movement .
  • a radially projecting arm 11a is fastened in a rotationally fixed manner, which abuts a stop 31a on the control line 31 and thereby prevents the thread of the clutch 11 from becoming loose during the oscillating bwz. commuting movement loosening of the HD hose 30 or even unintentionally unscrewed.
  • the arrangement of the connector 1c to the eccentric offers a further possibility of variation. If a further part of a bendable high-pressure hose 30 is installed as an “additional” pendulum tube between the connection piece 1c and the nozzle head 3, then the whipping nozzle head movements are intensified. The mechanical and hydraulic alternating stress of the material to be processed is favored.
  • the device can be used not only for cutting and / or drilling rock 15 in open quarries, but also in underground mines, for example in salt deposits for salt extraction or in coal seams to break out the coal or also to expand the passages to better deficient seams to make it accessible.
  • tunnel drives for e.g. underground traffic routes are thereby to be managed. It can also be used for cleaning runways, walls and the like, for removing road marking paints, for cleaning oil tanks or power station tanks or for cleaning ship walls below the waterline, namely for removing mussels, barnacles etc., and for roughening road surfaces . This provides the specialist with further possible uses.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Forests & Forestry (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Nozzles (AREA)
  • Earth Drilling (AREA)
EP88201560A 1987-08-11 1988-07-05 Dispositif pour le coupage, le forage ou usinage similaire de la pierre, du béton ou similaire Expired - Lifetime EP0303313B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3726733 1987-08-11
DE3726733 1987-08-11
DE3739825 1987-11-24
DE19873739825 DE3739825A1 (de) 1987-08-11 1987-11-24 Vorrichtung zum schneiden, bohren oder dergleichen bearbeiten von gestein, erzen, beton oder dergleichen

Publications (2)

Publication Number Publication Date
EP0303313A1 true EP0303313A1 (fr) 1989-02-15
EP0303313B1 EP0303313B1 (fr) 1992-02-12

Family

ID=25858525

Family Applications (2)

Application Number Title Priority Date Filing Date
EP88201560A Expired - Lifetime EP0303313B1 (fr) 1987-08-11 1988-07-05 Dispositif pour le coupage, le forage ou usinage similaire de la pierre, du béton ou similaire
EP88905802A Expired - Lifetime EP0362292B1 (fr) 1987-08-11 1988-07-05 Dispositif pour decouper, forer ou egalement dresser la roche, les minerais, le beton ou similaire

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP88905802A Expired - Lifetime EP0362292B1 (fr) 1987-08-11 1988-07-05 Dispositif pour decouper, forer ou egalement dresser la roche, les minerais, le beton ou similaire

Country Status (10)

Country Link
US (1) US4960176A (fr)
EP (2) EP0303313B1 (fr)
CN (1) CN1017507B (fr)
AU (1) AU608631B2 (fr)
BR (1) BR8807442A (fr)
DE (2) DE3739825A1 (fr)
ES (1) ES2030158T3 (fr)
GR (1) GR3004405T3 (fr)
PT (1) PT88223B (fr)
WO (1) WO1989001396A1 (fr)

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EP3251795A1 (fr) * 2016-06-02 2017-12-06 Leis Betontrennung GmbH & Co. KG Dispositif et procédé pour travailler des pièces minérales, des surfaces et/ou des sections de structures
CN111577190A (zh) * 2020-04-23 2020-08-25 王水波 一种油井异物主动保护式打捞设备

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DE3915933C1 (fr) * 1989-05-16 1990-11-29 Schneider, Geb. Loegel, Francine, Ingwiller, Fr
WO1991001432A1 (fr) * 1989-07-21 1991-02-07 Australian Stone Technology Procede et appareil servant a tailler des materiaux erodables en utilisant des moyens d'eau a haute pression
US5371347A (en) * 1991-10-15 1994-12-06 Gap Technologies, Incorporated Electro-optical scanning system with gyrating scan head
DE4128422C2 (de) * 1991-08-27 1994-04-21 Schneider Geb Loegel Vorrichtung und Verwendung der Vorrichtung zum Abtragen von Material
NO174401C (no) * 1992-01-17 1994-04-27 Jan Kaare Hatloe Utstyr for rensking av fjell og andre flater for stein og annet materiale ved hjelp av vannstråler under höyt trykk
SE501639C2 (sv) * 1993-08-17 1995-04-03 Ulf Ekeblom Anordning för styrning av sprutmunstycke
US5363927A (en) * 1993-09-27 1994-11-15 Frank Robert C Apparatus and method for hydraulic drilling
DE10233019B4 (de) * 2002-07-20 2004-09-16 Hochtief Ag Verfahren zum Abbau von Böden und Vorrichtung zur Durchführung des Verfahrens
US8672417B2 (en) * 2007-01-25 2014-03-18 Cmte Development Limited Rock sampling apparatus
DE102007032772A1 (de) * 2007-07-13 2009-01-15 Jäger, Anton Vorrichtung zum Ausstoßen eines Druckfluids
CN101338650B (zh) * 2008-08-07 2011-03-16 中国人民解放军理工大学工程兵工程学院 前混合磨料高压水射流钻孔装置
KR20120034545A (ko) * 2010-10-01 2012-04-12 한국과학기술원 터널 발파 천공을 최소화하는 발파패턴을 가지는 발파구조
CN104196450A (zh) * 2014-08-25 2014-12-10 江苏长城石油装备制造有限公司 一种用于软地质层加固的改进钻具
US10940604B2 (en) * 2017-11-30 2021-03-09 Lisec Austria Gmbh Device for dividing material panels
CN112339140B (zh) * 2020-10-12 2022-09-16 泰州市津达电子科技有限公司 一种大理石内嵌路标安装设备
US11708736B1 (en) * 2022-01-31 2023-07-25 Saudi Arabian Oil Company Cutting wellhead gate valve by water jetting

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GB718735A (en) * 1952-04-30 1954-11-17 Victor Donald Grant Liquid-discharge nozzles
CH370717A (fr) * 1960-02-22 1963-07-15 Cebe Pierre Pulvérisateur
DE2425475A1 (de) * 1973-06-04 1974-12-19 Aeromatic Ag Spruehduese
GB1460711A (en) * 1972-12-02 1977-01-06 Pressure Dynamics Ltd Liquid jet-cutting of materials
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Publication number Priority date Publication date Assignee Title
EP3251795A1 (fr) * 2016-06-02 2017-12-06 Leis Betontrennung GmbH & Co. KG Dispositif et procédé pour travailler des pièces minérales, des surfaces et/ou des sections de structures
CN111577190A (zh) * 2020-04-23 2020-08-25 王水波 一种油井异物主动保护式打捞设备

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AU608631B2 (en) 1991-04-11
US4960176A (en) 1990-10-02
DE3739825A1 (de) 1989-02-23
GR3004405T3 (fr) 1993-03-31
CN1017507B (zh) 1992-07-22
WO1989001396A1 (fr) 1989-02-23
EP0362292B1 (fr) 1991-03-06
CN1031743A (zh) 1989-03-15
PT88223A (pt) 1989-06-30
AU1996688A (en) 1989-03-09
PT88223B (pt) 1993-09-30
EP0362292A1 (fr) 1990-04-11
ES2030158T3 (es) 1992-10-16
BR8807442A (pt) 1990-05-15
DE3739825C2 (fr) 1990-08-30
EP0303313B1 (fr) 1992-02-12
DE3861969D1 (de) 1991-04-11

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