EP3126094B1 - Wasser-abrasiv-suspensions-schneidanlage - Google Patents

Wasser-abrasiv-suspensions-schneidanlage Download PDF

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Publication number
EP3126094B1
EP3126094B1 EP14727715.6A EP14727715A EP3126094B1 EP 3126094 B1 EP3126094 B1 EP 3126094B1 EP 14727715 A EP14727715 A EP 14727715A EP 3126094 B1 EP3126094 B1 EP 3126094B1
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EP
European Patent Office
Prior art keywords
pressure
lock chamber
abrasive
water
piston
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.)
Active
Application number
EP14727715.6A
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German (de)
English (en)
French (fr)
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EP3126094A1 (de
Inventor
Marco Linde
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ANT Applied New Technologies AG
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ANT Applied New Technologies AG
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Filing date
Publication date
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Priority to PL14727715T priority Critical patent/PL3126094T3/pl
Publication of EP3126094A1 publication Critical patent/EP3126094A1/de
Application granted granted Critical
Publication of EP3126094B1 publication Critical patent/EP3126094B1/de
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    • 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
    • B24C3/08—Abrasive blasting machines or devices; Plants essentially adapted for abrasive blasting of travelling stock or travelling workpieces
    • B24C3/10—Abrasive blasting machines or devices; Plants essentially adapted for abrasive blasting of travelling stock or travelling workpieces for treating external surfaces
    • B24C3/12—Apparatus using nozzles
    • 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
    • B24C7/0007—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
    • B24C7/0015—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 with control of feed parameters, e.g. feed rate of abrasive material or carrier
    • B24C7/0023—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 with control of feed parameters, e.g. feed rate of abrasive material or carrier of feed pressure

Definitions

  • the invention relates to a water-abrasive suspension cutting system with the features specified in the preamble of claim 1.
  • a water-abrasive suspension cutting system which has a lock with a lock chamber, which makes it possible to introduce abrasive during operation in the high-pressure region of the cutting system.
  • the water-abrasive suspension cutting system has, in a known manner, at least one high-pressure source which provides a carrier liquid, in particular water under high pressure.
  • a carrier liquid in particular water under high pressure.
  • This is for example a high-pressure pump.
  • Water may also find other suitable carrier fluids use.
  • at least one outlet nozzle is provided from which the high-pressure suspension of carrier liquid, d. H. preferably water, and an abrasive can be applied.
  • the exit gland may be formed in a known manner for cutting or for the surface treatment of materials.
  • the discharge nozzle is connected to the high-pressure source via a high-pressure line or a high-pressure flow path in which an abrasive is mixed under high pressure with the water provided by the high-pressure source.
  • the high pressure source provides carrier liquid under a very high pressure, preferably a pressure of up to 2500 bar or higher.
  • the high pressure line can run at least in a partial flow through a pressure vessel in which abrasive is, so that the abrasive from the pressure vessel is taken from the carrier liquid and a suspension is formed.
  • an abrasive-supply lock which has an inlet-side shut-off device and an outlet-side shut-off device with one between them Lock chamber has.
  • the input-side obturator be closed and an increase in pressure in the lock chamber are made, whereupon the second obturator can be opened and the contents of the lock chamber under high pressure in the high pressure line into, for example, a pressure vessel can empty into it.
  • the shut-off devices may be formed, for example, as ball valves.
  • the lock chamber according to the invention is connected to a suction device, which, when the first obturator is opened, can be activated to generate a negative pressure in the lock chamber , By such a negative pressure generated by the suction device, the abrasive is sucked through the open inlet-side obturator in the lock chamber, d. H. an inflow of the abrasive in the lock chamber is supported by at least a negative pressure in the lock chamber.
  • an abrasive accumulator is arranged, from which the abrasive is moved by gravity into the lock chamber, said movement is at least supported by said negative pressure.
  • the abrasive storage can be used as a hopper, d. H. be designed as a hopper, wherein in the abrasive storage, the abrasive preferably with carrier liquid, d. H. In particular, water is kept mixed, so that the abrasive can be introduced without air inclusions from the outside into the lock chamber.
  • the suction device is preferably formed as a cylinder in which a piston is movable, wherein one end of the cylinder to the Lock chamber is opened towards or connected to this.
  • a piston is movable, wherein one end of the cylinder to the Lock chamber is opened towards or connected to this.
  • the volume in the cylinder increases, whereby liquid is sucked from the lock chamber connected to this end of the cylinder and so in the lock chamber a negative pressure or a suction is generated, by which Input side obturator abrasive can be sucked into the lock chamber.
  • the piston is preferably movable via an electric, pneumatic or hydraulic drive.
  • the drive is controlled by a control device such that, when the first obturator is opened, the piston is moved away from the first end of the cylinder, which is connected to the lock chamber, to generate a negative pressure in the lock chamber.
  • the piston and the cylinder are formed such that the piston in the cylinder is linearly movable.
  • the piston is suitably sealed against the inner wall of the cylinder.
  • the piston is hydraulically movable, ie it has a hydraulic drive, wherein the piston is connected to a drive piston in a drive cylinder and the drive piston in the interior of the drive cylinder for movement of the piston with carrier liquid from the high-pressure line can be acted upon. So can be dispensed with a separate hydraulic to drive the piston. Instead, the pressure of the carrier liquid in the high-pressure region or in the high-pressure line can be used to move the piston in the suction device.
  • the drive piston may be arranged with the piston of the suction device in a common cylinder. However, it can also be provided separate cylinder.
  • the drive piston and the piston of the suction device preferably move along the same axis and are suitably, preferably firmly, connected to one another for the transmission of force and movement. It is also possible to arrange the piston of the suction device and the drive piston in a different manner relative to each other, for example, side by side, and to couple together for common movement in a suitable manner.
  • the application of carrier fluid from the high-pressure line to the drive cylinder is preferably effected by valves actuated by a control device, i. H. in particular causes electrically or pneumatically actuated valves.
  • the drive cylinder is further preferably connected to the high-pressure line via at least one valve on at least one side of the drive piston.
  • the valve is opened, so the cylinder is filled with carrier liquid from the high-pressure line and the drive piston is pressurized on one side, so that the drive piston can be moved in a side facing away from this side in the drive cylinder.
  • the piston of the suction device is correspondingly moved in order to generate the negative pressure in the lock chamber.
  • the lock chamber opens via its outlet-side obturator in a pressure vessel, which is located in the high pressure line or a branch of the high pressure line.
  • the lock chamber is arranged vertically above the pressure vessel, so that the contents of the lock chamber can be emptied by gravity in the pressure vessel with open outlet-side obturator.
  • the pressure vessel may be the area in which, as described above, the high-pressure carrier liquid mixed with the abrasive to form a suspension. Ie. by the flow of the carrier liquid, the abrasive is rinsed out of the pressure vessel. The slurry flow downstream of the pressure vessel then enters the exit nozzle and is applied by this. In this case, only a partial flow or one of a plurality of parallel flow paths of the high-pressure line is preferably guided through such a pressure vessel.
  • a main branch of the high-pressure line extends past the pressure vessel and the pressure vessel is located in a side branch parallel to the main branch, the main branch and the secondary branch merging upstream of the outlet nozzle.
  • the main branch forms a bypass, which is not guided by the pressure vessel.
  • Only the flow in the secondary branch is used in this embodiment to promote the abrasive from the pressure vessel. Ie. in the pressure vessel, first the flow from the side branch mixes with abrasive and promotes the abrasive to a mixing point at which merge branch and main branch. There, the suspension from the side branch is then further diluted by the flow in the main branch and it forms the suspension, which then further downstream of the outlet nozzle exits.
  • the lock chamber is connected via a pressure line to the high pressure line, wherein in the pressure line, a first pressure compensation valve is arranged in the form of a shut-off valve and wherein by opening this first pressure compensation valve, the lock chamber is pressurized.
  • the shut-off valve may be formed in any suitable manner for switching a high pressure, as mentioned above.
  • the shut-off valve is designed as a needle valve.
  • the shut-off valve can be actuated electrically, pneumatically, hydraulically or in another suitable manner and is preferably controlled by a control device of the overall system.
  • shut-off valve By opening the shut-off valve is a connection between the high pressure area, ie between the high pressure line and the lock chamber made so that carrier liquid can flow under high pressure into the lock chamber and so can increase the pressure in the lock chamber to the substantially same level as in the high pressure line.
  • the pressure in the lock chamber can be increased before the outlet-side shut-off element is opened.
  • a pressure equalization with the high pressure line is made before opening the output-side obturator.
  • the lock chamber is connected to a drain line, which is connected via a second pressure compensating valve in the form of a shut-off valve with a non-pressurized flow, wherein by opening the second pressure compensation valve, the drain line can be opened to the non-pressurized flow.
  • the second pressure compensation valve can be configured in a corresponding manner to the above-mentioned pressure compensation valve.
  • the second pressure compensation valve is used to reduce the pressure in the interior of the lock chamber after closing the output-side obturator and before opening the input-side obturator, in particular substantially to reduce the ambient pressure. Only when the pressure in the lock chamber has been correspondingly reduced, then the input-side obturator is opened to refill the lock chamber again with abrasive.
  • the lock chamber can be connected to a drain line which ends in a pressure chamber of a rechargeable battery.
  • a drain line which ends in a pressure chamber of a rechargeable battery.
  • This may be a separate drain line or the drain line, which additionally opens via a shut-off valve in a non-pressurized drain.
  • the discharge line which is connected to the pressure chamber of an accumulator, it is possible, the pressure in the lock chamber in the accumulator reduce, so that no or less liquid from the lock chamber must be discharged to the outside. It can thus be a pressure equalization or a pressure reduction in a closed system.
  • the accumulator is more preferably a cylinder accumulator and the discharge line is connected to a first pressure chamber of the cylinder accumulator, in which a piston, which separates the first pressure chamber from a second pressure chamber, is arranged to be movable.
  • the second pressure chamber is preferably via at least one valve pressure and pressure relieved.
  • the piston When the piston is in a first position, in which it minimizes the first pressure chamber, the second pressure chamber can be relieved of pressure via a valve, so that liquid or water can flow out of the lock chamber into the first pressure chamber via the outlet conduit, wherein the piston moves into the second pressure chamber and reduces it as the first pressure chamber increases.
  • the piston By pressurizing the second pressure chamber, the piston can be moved back to its original position.
  • a back pressure can be built up via the second pressure chamber, so that the movement speed of the piston can be controlled or reduced, so that a slow pressure reduction in the lock chamber is possible.
  • the second pressure chamber of the cylinder accumulator is further preferably connected via at least one valve switchable to the high pressure line or a non-pressurized outlet.
  • the valve can be used in any suitable Way, for example, be designed as a needle valve.
  • the valve may have, for example, an electric, pneumatic or hydraulic drive and is preferably controlled by a central control device which controls the filling process.
  • the valve communicates the second pressure chamber of the cylinder accumulator with the high-pressure line, the second pressure chamber is supplied with liquid from the high-pressure line, so that the piston in the cylinder accumulator in the first pressure chamber or in the direction of the first pressure chamber are moved can, so that it is reduced.
  • valve When the valve is switched to communicate the second pressure space with a non-pressurized outlet, simultaneously closing the connection to the high-pressure line, the piston may move toward the second pressure space so that the first pressure space increases to expel liquid to absorb the lock chamber.
  • switching operations can be realized by a suitable valve circuit of one or more valves.
  • two separate valves may be provided, with one valve opening or closing the connection to the high pressure line and a second valve opening or closing a connection to the non-pressure outlet.
  • a throttle in the drain line upstream of the accumulator, i. H. in particular of the cylinder accumulator be arranged a throttle. This ensures a slower pressure reduction of the pressure in the lock chamber by throttling the flow of liquid from the lock chamber to the accumulator.
  • At least one pressure accumulator is arranged in the high-pressure line or connected to the high-pressure line.
  • This pressure accumulator can be designed, for example, as an additional volume filled with high-pressure carrier fluid or, for example, as a bladder accumulator be.
  • the pressure accumulator serves to reduce a pressure drop in the high-pressure region, ie in the high-pressure line, when a pressure equalization takes place in the lock chamber from the high-pressure region or the high-pressure line. For example, when a first pressure compensating valve, as described above, is opened, a connection is established between the lock chamber, in which initially atmospheric pressure prevails, and the high-pressure line.
  • the lock chamber is connected via the inlet-side obturator with an outlet of Abrasivstoff Itemss, wherein in the output of a movable closure member is arranged, which is hollow and open to an upper and a lower end, wherein the closure element with its lower end closes the outlet and extends with its upper end over a maximum level for the abrasive out addition.
  • the abrasive accumulator may for example be formed as a hopper, wherein the output of the hopper is located at its lower tapered end. This outlet opens into the inlet-side obturator of the lock chamber.
  • the closure element is provided, which closes the output, for example in the form of a plug.
  • the output can be opened and closed.
  • the shutter member is preferably formed so as to have a lower opening which is opened into the exit and hollow in its interior.
  • the cavity in the interior of the closure element provides a Connection to a second opening at the upper end of the closure element ago.
  • the closure element is formed so long or has an upwardly extending axial extension, that the opening is located at the upper end above the maximum level for the abrasive in the Abrasivstoff Items.
  • the abrasive storage is preferably equipped with a level monitoring for both the abrasive and for liquid, so that it is always ensured that a liquid-abrasive mixture is present in the abrasive storage.
  • the described closure element preferably has a closure plug at its lower end, through which extends to the upper end a tubular extension which establishes the connection between the two open ends.
  • the closure element with the passage in its interior has the further advantage that it is possible to supply the abrasive by means of the Locking element to prevent, even if the input-side obturator is still open. In this state, it is then possible, in particular, for water or carrier fluid to be able to flow further through the closure element and the inlet-side obturator through the opening in the interior of the closure element, while the supply of abrasive medium is prevented, for example, by the closure stopper at the lower end of the closure element. This makes it possible to flush the input-side shut-off device with carrier liquid or water in order to make it substantially free of abrasive agent before the closing of the input-side shut-off device.
  • water-abrasive suspension cutting machine has a high pressure source in the form of a high-pressure pump 2, which is connected via a high pressure area or a high pressure line 4 with an outlet nozzle 6.
  • the high-pressure pump 2 provides water as a carrier fluid under high pressure, wherein the pressure can be up to 2500 bar or more.
  • the main line 8 runs directly from the high-pressure pump 2 to the outlet nozzle 6, while the secondary branch 10 branches off from this main branch 8 and forms a bypass, which passes through a pressure vessel 12 runs.
  • an abrasive such as a mineral abrasive such as garnet sand, corundum, olivine or river sand.
  • a mixing between the abrasive and the water occurs, so that the water entrains the abrasive, or rinses out of the pressure vessel 12.
  • the secondary stream 8 opens on the output side of the pressure vessel 12 again in the main stream 8 and thus mixes this entrained from the pressure vessel 12 abrasive, so in the mixing point 14, the final suspension is formed, which then emerges from the outlet nozzle 6 to the outside.
  • a valve not shown here, may be provided to shut off the sub-branch 10, whereby then the supply of abrasive to the water flow can be switched off.
  • an abrasive agent supply lock 16 is provided according to the invention.
  • This has a lock chamber 18, which consists of an inlet region 20 and an intermediate container 22.
  • the lock chamber 18 is arranged vertically above the pressure vessel 12 and separated therefrom by an outlet-side obturator in the form of an outlet-side ball valve 24.
  • At the upper end the lock chamber 18 has an input-side ball valve 26, which forms an inlet-side obturator.
  • a hopper 28 is arranged, which is based on FIGS. 4 and 5 will be described in more detail.
  • a suction device 30 which here has a cylinder 32 with a linearly movable piston 34 in this.
  • the piston 34 is fixedly connected to a drive piston 36 which is linearly movable in an axially adjoining the cylinder 32 drive cylinder 38.
  • a pressure line 40 which branches off from the high-pressure line 4, in this case the secondary branch 10, opens into the lock chamber 18.
  • a first pressure compensation valve 42 is arranged in the pressure line 40.
  • the lock chamber 18 is connected to a drain line 44, in which a second pressure compensation valve 46 is arranged and which downstream of the second pressure compensation valve 46 opens into a non-pressurized drain 48.
  • a first pressure transducer 50 and at the lock chamber 18, a second pressure transducer 52 is arranged. Furthermore, the pressure line 4 still has an accumulator in the form of a pressure accumulator 54.
  • a hydraulic drive is provided for the piston 34 of the suction device 30, which is formed by the drive cylinder and the drive piston 36.
  • the drive cylinder 38 is connected at a first, the piston 34 facing side of the drive piston 36 via a valve 56 to the high pressure line 4.
  • the drive cylinder 38 is connected to a second side of the drive piston 36, which faces away from the piston 34, via a further valve 58 also connected to the high-pressure line 4.
  • a drain valve 60 is arranged.
  • a drain valve 62 is arranged at the connection of the valve 58 to the drive cylinder 38.
  • a check valve 64, 66 is also arranged in each case.
  • valve 56 In order to move the piston 34 back in the direction of the lock chamber 18, the valve 56 is closed. Also, the drain valve 62 is closed. Conversely, then the drain valve 60 and the valve 58 are opened, so that the piston 34 remote from the side of the drive piston 36 is pressurized and so the drive piston 36 and the piston 34 are moved back in the opposite direction.
  • the filling of the pressure vessel 12 with abrasive is now as follows. First, by short-term Opening the second pressure compensation valve 46, the interior of the lock chamber 18 relieved of existing residual pressure, wherein liquid flows from the inlet region 20 via the drain line 44 into the drain 48. Thereafter, the pressure compensating valve 46 is closed again. Further, the piston 34 is moved by the drive described above in a first end position in which it is located at the end facing the lock chamber 18 end, ie the drive cylinder 38 facing away from the end of the cylinder 32. Ie. in this state, the volume of the cylinder 32 facing the lock chamber 18 and connected thereto is minimal. During this movement of the piston 34, the input-side ball valve 26 is open when the pressure compensation valve 46 is closed.
  • the drive cylinder is pressurized so that the drive piston 36 is moved forward together with the piston 34, that is, moved toward the lock chamber 18, so that the volume of the lock chamber 18 in the cylinder 32 decreases.
  • the piston 34 contributes to the pressure build-up in the interior of the lock chamber 18.
  • the first pressure compensation valve 42 is opened, whereby the lock chamber 18 is acted upon by the pressure in the high-pressure line 4 or in the high-pressure region. Ie. There is a substantially complete pressure equalization between the high pressure line 4 and the lock chamber 18 instead. This is monitored by the pressure transducer 50 and 52. In order to minimize the pressure drop in the high pressure line 4 at this pressure equalization, a pressure accumulator 54 is present at this.
  • the outlet-side ball valve 24 of the lock chamber 18 is opened, whereby the abrasive from the lock chamber 18, ie the intermediate container of the lock chamber 18 due to gravity in the pressure vessel 12 passes.
  • the pressure compensation valve 42 preferably remains open to allow drainage of the buffer memory 22 during its emptying. That is, via the pressure compensation valve 42 and the pressure line 40 can flow carrier liquid or water into the lock chamber 18, while the abrasive from the buffer 22 passes through the open ball valve 24 into the pressure vessel 12.
  • the output-side ball valve 24 is closed again. In this case, the pressure compensation valve 42 is closed.
  • a pressure equalization between the lock chamber 18 and the atmosphere by the valve 56 is opened when the valve is closed, whereby the drive piston 36 together with the piston 34 backwards, that is moved away from the lock chamber 18.
  • the lock chamber 18 facing volume of the cylinder 32 is increased and the pressure in the lock chamber 18 is reduced.
  • the second pressure compensating valve 46 is opened to the outlet 48 for complete pressure equalization.
  • the drive piston 36 is pressurized so that the piston 34 is moved in the cylinder 32 again in its lock chamber 18 facing the end position, while the liquid from the cylinder 32 back into the Lock chamber 18 is pressed and out of this through the open input-side ball valve 26 into the hopper 28, as shown in the FIGS. 4 and 5 will be explained.
  • the outlet of the hopper 28 is opened again and the filling of the lock chamber 18 begins again.
  • FIG. 2 shows a second variant of a water-abrasive suspension cutting system according to the invention, which is identical in essential parts to the system according to FIG. 1 is constructed.
  • the drain valves 60 and 62 and the check valves 64 and 66 may be arranged.
  • the drain line 44 is connected via a throttle 68th additionally an accumulator in the form of a cylinder accumulator 70 is connected.
  • the discharge line 44 is connected via the throttle 68 with a first pressure chamber 72 of the cylinder accumulator 70.
  • the first pressure chamber 72 is separated by a longitudinally displaceable piston 74 from a second pressure chamber 76 in the interior of the cylinder accumulator 70.
  • the second pressure chamber 76 is connected via a first valve 78 to the pressure line 4 and via a second valve 80 to a drain 82 which has ambient pressure or atmospheric pressure.
  • the pressure relief ie the pressure equalization of the lock chamber 18 to the ambient pressure so done in two steps.
  • the pressure equalization takes place via the cylinder accumulator 70 in that the second valve 80, which forms a drain valve, is opened to the outlet 82.
  • FIG. 3 A third embodiment of the invention is in FIG. 3 shown. This embodiment essentially corresponds to that in FIG. 2 shown Embodiment with the only difference that for the drive of the piston 34 of the suction device 30, a separate pneumatic drive via the pneumatic ports 84 and 86 is provided on the drive cylinder 38.
  • the pneumatic ports 84 and 86 are pressurized in accordance with the foregoing description of the hydraulic variant to move the drive piston 36 together with the piston 34.
  • a separate pneumatic control system is connected accordingly, which may preferably be used when other elements of the system, in particular valves, such as the pressure compensation valves 42 and 46 are pneumatically operated.
  • the function of the hopper 28 is based on the FIGS. 4 and 5 described in more detail.
  • the hopper 28 has at its lower end to an outlet 88, which as described above above the input-side ball valve 26 of the lock chamber 18 is arranged.
  • the hopper 18 is filled in operation with water 90 and abrasive 92 so that the abrasive 92 enters the lock chamber 18 in the wet state, so that the passage of air into the lock chamber 18 is prevented.
  • the inlet of the abrasive into the lock chamber 18 is controlled not only by the inlet-side ball valve 26, but additionally via a closure element 94 in the hopper 28.
  • the closure member 94 has at its lower end a closure plug 96 which is formed so that it the inside of the inlet funnel 28 can sealingly engage the outlet 88 as in FIG. 4 shown. In this state, no abrasive agent 92 can enter the exit 88.
  • the closure member 94 has a tube 98 which extends through the stopper 96 to the outlet 88 and at its lower End has a lower opening 100.
  • the tube 98 extends from the stopper 96 upwards over the water level 102 to a arranged at the top of the hopper 28 pneumatic cylinder 104.
  • the tube 58 is vertically movable, so that it, as in FIG. 5 shown, can be moved together with the closure plug 96 in a vertically upper position in which the sealing plug 96 is removed from the inner wall of the hopper 28, so that an annular gap 106 is released, through which the abrasive 92 can flow into the outlet 88.
  • any other suitable linear drive could be used to move the tube 98 with the stopper 96, ie, to move the stopper 94 in the vertical direction.
  • the tube 98 has an upper opening 108, which opens at the outer periphery of the tube 98.
  • the upper opening 108 is located above the level, ie the maximum level 110 for the abrasive 92. This prevents in the in FIG. 4 shown closed state of the hopper 28 abrasive 92 can pass through the upper opening 108 in the output 88.
  • the exit 88 is closed in the state and can only be opened by lifting the closure element 94 vertically.
  • it is open for water, which flows from below from the lock chamber 18 upon return movement of the piston 34 through the input-side ball valve 26. Ie. this water, which is displaced upon return movement of the piston 34 and optionally the piston 74 from the lock chamber 18, can enter the lower opening 100 of the tube 98 and exit through the upper opening 108 above the abrasive 92 into the hopper 28.
  • the tube 98 has a further function, namely, that before the closing of the input-side ball valve 26, this can be rinsed to remove abrasive from the ball valve 26.
  • the abrasive agent supply is interrupted by lowering the closure element 94 before the end of the suction movement of the piston 34. Due to the further suction movement of the piston 34 but then in the lock chamber 18 is still a negative pressure, so that water from the hopper via the upper opening 108, is sucked through the tube 98 from the lower opening 100 and flows through the still open ball valve 26 , Only after this flushing the ball valve 26 is then closed, as described with reference to Figures 1 - 3 for the filling.
  • sensors not shown here for monitoring the water level 102 and the level 110 of the abrasive 92 may be arranged to automatically refill water and abrasive can.
  • These can be eg photoelectric barriers.
  • Other level sensors, for example in the form of light barriers can be arranged on the intermediate container 22 and the pressure vessel 12.
  • About level sensors on the pressure vessel 12 can be detected when it must be filled.
  • About level sensors on the intermediate container 22 can be detected when it is completely emptied, so that the lower ball valve 24 can be closed again. It can also be detected when the intermediate container 22 is sufficiently filled with abrasive before the Abrasivffenzuzen is interrupted from the hopper 28.
  • the entire filling process can be automated via a control device.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Reciprocating Pumps (AREA)
  • Disintegrating Or Milling (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
EP14727715.6A 2014-04-04 2014-04-04 Wasser-abrasiv-suspensions-schneidanlage Active EP3126094B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14727715T PL3126094T3 (pl) 2014-04-04 2014-04-04 Instalacja do cięcia zawiesiną woda - ścierniwo

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2014/056814 WO2015149867A1 (de) 2014-04-04 2014-04-04 Wasser-abrasiv-suspensions-schneidanlage

Publications (2)

Publication Number Publication Date
EP3126094A1 EP3126094A1 (de) 2017-02-08
EP3126094B1 true EP3126094B1 (de) 2018-01-31

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EP14727715.6A Active EP3126094B1 (de) 2014-04-04 2014-04-04 Wasser-abrasiv-suspensions-schneidanlage

Country Status (11)

Country Link
US (1) US10189144B2 (ja)
EP (1) EP3126094B1 (ja)
JP (1) JP6275918B2 (ja)
KR (1) KR102216007B1 (ja)
CN (1) CN106163742B (ja)
AU (1) AU2014388985B2 (ja)
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MX (1) MX2016012954A (ja)
NO (1) NO3126094T3 (ja)
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EP3089849B2 (en) 2013-12-20 2024-02-21 Flow International Corporation Abrasive slurry delivery systems and methods
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CN110753601A (zh) * 2017-03-31 2020-02-04 艾恩特应用新技术公司 水磨料悬浮液切割设备
MX2019011565A (es) 2017-03-31 2019-11-18 Ant Applied New Tech Ag Instalacion de corte por suspension de agente abrasivo a base de agua y metodo de corte por suspension de agente abrasivo a base de agua.
US20210107115A1 (en) 2017-03-31 2021-04-15 Ant Applied New Technologies Ag Water-abrasive-suspension cutting system and method for water-abrasive-suspension cutting
BR112019019228A2 (pt) * 2017-03-31 2020-04-14 Ant Applied New Tech Ag instalação de corte por suspensão água-abrasivo e método para corte por suspensão água-abrasivo
EP3615273A1 (de) * 2017-04-28 2020-03-04 ANT Applied New Technologies AG Wasser-abrasiv-suspensions-schneidanlage
CN110987699B (zh) * 2019-12-04 2022-07-19 郑州大学 一种增压缸式液固混合射流实验装置
CN114227543B (zh) * 2021-11-09 2023-05-23 烟台杰瑞石油装备技术有限公司 切割设备及切割方法

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EP3126094A1 (de) 2017-02-08
CA2944227A1 (en) 2015-10-08
AU2014388985A1 (en) 2016-10-20
MX2016012954A (es) 2016-12-07
CA2944227C (en) 2020-12-15
AU2014388985B2 (en) 2019-01-03
KR102216007B1 (ko) 2021-02-16
PL3126094T3 (pl) 2018-07-31
JP2017512668A (ja) 2017-05-25
US20170106499A1 (en) 2017-04-20
CN106163742B (zh) 2018-04-03
WO2015149867A1 (de) 2015-10-08
NO3126094T3 (ja) 2018-06-30
JP6275918B2 (ja) 2018-02-07
CN106163742A (zh) 2016-11-23
KR20160141723A (ko) 2016-12-09
US10189144B2 (en) 2019-01-29

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