Abstract: A water-abrasive suspension cutting facility includes a high-pressure source (3) for providing (301) water at a high pressure, a high-pressure conduit (5) which is connected to the high-pressure source (3), a pressure tank for providing (303) a water-abrasive agent suspension (13) which is at a high pressure, a lock chamber (21) which is designed to temporarily be at a high pressure and temporarily at a low pressure, and a filling valve (23) for filling (311) the lock chamber when this is at a low pressure. A pump (31) at the suction side is fluid-connected to the lock chamber in a manner capable of being shut off, in a manner such that given high pressure in the lock chamber (21) the pump is shut off from this and given low pressure in the lock chamber (21) the pump is in the position of sucking an abrasive agent suspension through the filling valve (23) into the lock chamber (21).

Abstract: A water-abrasive suspension cutting facility (1) includes a high-pressure source (3) for providing (301) water at a high pressure, a high-pressure conduit (5) which is connected to the high-pressure source (3) and a pressure tank (11) for providing (303) an abrasive agent suspension (13) which is at a high pressure. The pressure tank (11) is fluid-connected to the high-pressure conduit (5) via a regulatable throttle (17). The throttle (17) is arranged at the entry side of the pressure tank (11) and is configured to regulate the feed flow into the pressure tank (11) from the high-pressure conduit (5) in dependence on at least one control variable.

Abstract: A nozzle head (1) for discharging a suspension which is under pressure and which includes a fluid and abrasive agent, with at least one nozzle (8) including at least one exit opening (20) for the exit of the suspension. The nozzle head (1) includes at least one first drive device (17?), by way of which the nozzle head can be rotated about a first axis (A1).

Abstract: An abrasive suspension eroding system has an eroding unit (11), which can be lowered into an existing drilled hole (1), in order to generate a high-pressure erosion jet for the abrasive suspension eroding of material (6, 20) in an existing drilled hole (1). The eroding unit (11) can be connected to a drilling fluid line (9) and is configured to generate a high-pressure erosion jet from a drilling fluid abrasive suspension device.

Abstract: A water-abrasive suspension cutting facility includes a pressure tank (11) for providing a water-abrasive agent suspension (13) which is under pressure, a lock chamber (21), and a refilling valve for refilling abrasive agent into the pressure tank via the lock chamber (21). The refilling valve (21) includes a valve entry (49), a valve exit (51), a valve space (71) which is arranged between the valve entry (49) and the valve exit (51), and a valve body (67) which is located in the valve space (71). The valve entry (49) is connected to the lock chamber (21) and the valve exit (51) to the pressure tank (11). The refilling valve (19) can assume a first closure position, a first open position and a second open position. In the first closure position the lock chamber (21) is fluid-separated from the pressure tank.

Abstract: A water-abrasive suspension cutting facility includes a pressure tank for providing (301) a water-abrasive agent suspension (13) which is under pressure, a lock chamber (21), and a refilling valve for refilling abrasive agent into the pressure tank via the lock chamber (21). The refilling valve (21) includes a valve entry (49), a valve exit (51), a valve space (71) which is arranged between the valve entry (49) and the valve exit (51), and a valve body (67) which is located in the valve space (71). The valve entry (49) is connected to the lock chamber (21) and the valve exit (51) to the pressure tank (11). The refilling valve (19) can assume a first closure position, a first open position and a second open position. In the first closure position the lock chamber (21) is fluid-separated from the pressure tank (11) and in the first as well as a second open position the lock chamber (21) is fluid-connected to the pressure tank (11).

Abstract: A water-abrasive suspension cutting facility (1) includes a high-pressure source (3) for providing (301) water at a high pressure, a high-pressure conduit (5) which is connected to the high-pressure source (3) and a pressure tank (11) for providing (303) an abrasive agent suspension (13) which is at a high pressure. The pressure tank (11) is fluid-connected to the high-pressure conduit (5) via a regulatable throttle (17). The throttle (17) is arranged at the entry side of the pressure tank (11) and is configured to regulate the feed flow into the pressure tank (11) from the high-pressure conduit (5) in dependence on at least one control variable.

Abstract: A water-abrasive suspension cutting facility (1) includes a high-pressure source (3) for providing (301) water at a high pressure, a high-pressure conduit (5) which is connected to the high pressure source (3), a pressure tank (11) for providing (303) an abrasive agent suspension (13) which is at a high pressure, a lock chamber (21) which is designed to temporarily be at a high pressure and temporarily at a low pressure and a refilling valve (19) for refilling (311) the pressure tank (11) from the lock chamber (21). A delivery aid (45) is fluid-connected to the pressure tank (11) at the suction side in a manner such that given high pressure in the lock chamber (21), the delivery aid is cable of sucking an abrasive agent suspension out of the lock chamber (21) through the refilling valve (19) into the pressure tank (11).

Abstract: A water-abrasive suspension cutting facility includes a high-pressure source (3) for providing (301) water at a high pressure, a high-pressure conduit (5) which is connected to the high-pressure source (3), a pressure tank for providing (303) a water-abrasive agent suspension (13) which is at a high pressure, a lock chamber (21) which is designed to temporarily be at a high pressure and temporarily at a low pressure, and a filling valve (23) for filling (311) the lock chamber when this is at a low pressure. A pump (31) at the suction side is fluid-connected to the lock chamber in a manner capable of being shut off, in a manner such that given high pressure in the lock chamber (21) the pump is shut off from this and given low pressure in the lock chamber (21) the pump is in the position of sucking an abrasive agent suspension through the filling valve (23) into the lock chamber (21).

Abstract: An abrasive suspension eroding system has an eroding unit (11), which can be lowered into an existing drilled hole (1), in order to generate a high-pressure erosion jet for the abrasive suspension eroding of material (6, 20) in an existing drilled hole (1). The eroding unit (11) can be connected to a drilling fluid line (9) and is configured to generate a high-pressure erosion jet from a drilling fluid abrasive suspension device.

Abstract: A water-abrasive cutting system includes a cutting head (2) which includes a fixing device (16, 18, 20) for fixing the cutting head (2) on the wall to be cut as well as a nozzle head (10) disposed on the cutting head (2). At least one cutting nozzle (12), for an application of a cutting jet (14), is disposed in the cutting head (2). A cutting monitoring device (26) includes at least one hydrophone (30) and at least one further sensor. The cutting monitoring device (26) is configured to detect a complete penetration and/or cutting-through of the wall on the basis of the sensor signals of the hydrophone (30) and the at least one further sensor.

Abstract: A water-abrasive suspension cutting facility with at least one high-pressure source (2) which provides a carrier fluid at a high pressure, with at least one exit nozzle (6), with a high-pressure conduit (4) connecting the high-pressure source (2) to the exit nozzle (6), as well as with an abrasive agent feed lock (16). The abrasive agent feed lock (16) is connected to the high-pressure conduit (4) and includes an entry side shut-off element (26) and an exit-side shut-off element (24). A lock chamber (18) is arranged between the entry side shut-off element (26) and an exit-side shut-off element (24). A suction device (30) is configured for producing a reduced pressure in the lock chamber (18) and is connected to the lock chamber (18).

Abstract: A water-abrasive cutting system includes a cutting head (2) which includes a fixing device (16, 18, 20) for fixing the cutting head (2) on the wall to be cut as well as a nozzle head (10) disposed on the cutting head (2). At least one cutting nozzle (12), for an application of a cutting jet (14), is disposed in the cutting head (2). A cutting monitoring device (26) includes at least one hydrophone (30) and at least one further sensor. The cutting monitoring device (26) is configured to detect a complete penetration and/or cutting-through of the wall on the basis of the sensor signals of the hydrophone (30) and the at least one further sensor.

Abstract: A water-abrasive suspension cutting facility with at least one high-pressure source (2) which provides a carrier fluid at a high pressure, with at least one exit nozzle (6), with a high-pressure conduit (4) connecting the high-pressure source (2) to the exit nozzle (6), as well as with an abrasive agent feed lock (16). The abrasive agent feed lock (16) is connected to the high-pressure conduit (4) and includes an entry side shut-off element (26) and an exit-side shut-off element (24). A lock chamber (18) is arranged between the entry side shut-off element (26) and an exit-side shut-off element (24). A suction device (30) is configured for producing a reduced pressure in the lock chamber (18) and is connected to the lock chamber (18).

Abstract: A nozzle head (1) for discharging a suspension which is under pressure and which includes a fluid and abrasive agent, with at least one nozzle (8) including at least one exit opening (20) for the exit of the suspension. The nozzle head (1) includes at least one first drive device (17?), by way of which the nozzle head can be rotated about a first axis (A1).

Abstract: The method for filling a pressure container and a device for producing a jet of a suspension: The method serves for filling a pressure container (10) of a device for producing a jet of a suspension of a carrier fluid (1) and an abrasive medium (9), with an abrasive medium. The abrasive medium (9) is filled from a filling container (18) arranged above the pressure container (10) via a conduit (19) opening out into the pressure container (10) near to the upper side, by gravity from the filling container (18) into the pressure container (10), wherein the carrier fluid (1) displaced into the pressure container (10) by the abrasive medium (9) is discharged from the pressure container (10).

Abstract: The method serves for filling a pressure container (10) of a device for producing a jet of a suspension of a carrier fluid (1) and an abrasive medium (9), with an abrasive medium. The abrasive medium (9) is filled from a filling container (18) arranged above the pressure container (10) via a conduit (19) opening out into the pressure container (10) near to the upper side, by gravity from the filling container (18) into the pressure container (10), wherein the carrier fluid (1) displaced into the pressure container (10) by the abrasive medium (9) is discharged from the pressure container (10).