EP3418487A1 - Method for cleaning a drilling rod contaminated with pollutant and cleaning assembly for same - Google Patents
Method for cleaning a drilling rod contaminated with pollutant and cleaning assembly for same Download PDFInfo
- Publication number
- EP3418487A1 EP3418487A1 EP17177659.4A EP17177659A EP3418487A1 EP 3418487 A1 EP3418487 A1 EP 3418487A1 EP 17177659 A EP17177659 A EP 17177659A EP 3418487 A1 EP3418487 A1 EP 3418487A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cleaning
- flushing
- boring bar
- drill rod
- cleaning liquid
- 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
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 92
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000003344 environmental pollutant Substances 0.000 title claims description 9
- 231100000719 pollutant Toxicity 0.000 title claims description 9
- 238000005553 drilling Methods 0.000 title description 10
- 238000011010 flushing procedure Methods 0.000 claims abstract description 62
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 239000012530 fluid Substances 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 2
- 238000012958 reprocessing Methods 0.000 claims description 2
- 239000002689 soil Substances 0.000 description 17
- 239000000463 material Substances 0.000 description 10
- 238000010276 construction Methods 0.000 description 6
- 239000000725 suspension Substances 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
Images
Classifications
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/006—Accessories for drilling pipes, e.g. cleaners
-
- 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
- E21B12/00—Accessories for drilling tools
Definitions
- the invention relates to a method and a cleaning arrangement for cleaning a polluted contaminant boring bar.
- a boring bar which comprises or is provided with a boring tool even at the lower end.
- the boring bar is arranged to be vertically displaceable on a carrier device arranged outside the borehole and as a rule driven in rotation.
- the removed soil material is usually removed during drilling from the wellbore. Upon completion of the drilling, the boring bar is removed from the borehole, but pollutant-contaminated soil may adhere to the boring bar.
- a pollutant load can also result from the fact that the drill rod is immersed in a contaminated drilling or concrete suspension.
- the boring bar Due to the length of a boring bar of 10 m and more, it is usually required to disassemble the boring bar from the carrier from the vertical working position and to spend in a horizontal cleaning position on the ground. In this horizontal position, for example, the boring bar can be freed of adhering soil material with a high-pressure cleaner. The rinsed soil material can be collected and disposed of. Finally, the cleaned drill rod can be re-mounted on the mast of the drill.
- the invention has for its object to provide a method and a cleaning arrangement for cleaning a polluted contaminant boring bar, with which a boring bar can be cleaned very efficient.
- a method of cleaning a contaminant-contaminated boring bar by placing the boring bar in a vertical position, attaching a flushing nozzle to a top of the boring bar, and rinsing the boring bar with a cleaning liquid supplied via the flushing port ,
- a basic idea of the invention can be seen not to clean a boring bar in a horizontal position, but in a vertical position.
- a flushing nozzle through which cleaning liquid can be supplied.
- the cleaning liquid may preferably be water or a water-based fluid.
- Surfactants or other additives may optionally be provided which assist in the detachment of soil material or are suitable for the treatment and in particular neutralization of pollutants.
- the boring bar can thus remain in a substantially vertical operating position on the carrier device.
- a flushing bell carried out a rinsing of the adhering pollutant, such as from the soil, the support or drilling suspension or a setting suspension to form a foundation element.
- Rinsing the inside and / or outside of the drill rod can be done by supplying cleaning fluid through a flushing device. As a result, a sufficient decontamination can be done with little staff and time.
- a preferred embodiment of the invention is that a cleaning hole in the ground is provided and the contaminated drill rod is retracted for rinsing the adhering pollutant in the cleaning hole.
- the cleaning hole in the floor can serve to catch the rinsed soil material.
- the cleaning hole is in the contaminated area, so that infiltration of cleaning liquid with pollutants in the already contaminated soil is not harmful to the environment.
- the cleaning hole may have a depth of several meters to a depth corresponding to the length of the boring bar and beyond.
- the cleaning hole may be a borehole lined with a support tube.
- the cleaning hole may be filled with cleaning fluid.
- the drill rod can be moved vertically by means of the drill along the mast and retracted into the cleaning hole. By a vertical up and down movement of the drill rod so an additional rinsing effect can be generated.
- a settling area for receiving the rinsed soil material may be provided.
- the cleaning liquid can seep into the soil, provided that the cleaning area is located in a contaminated area.
- cleaning liquid preferably continuously, is discharged.
- a development of the invention is that the discharged cleaning liquid is supplied to a disposal device and / or a reprocessing device. As a result, overall a pollutant reduction of the environment can be achieved.
- the flushing connection is conveyed by means of a hoisting cable along the mast of a carrier device to the upper side of the boring bar.
- the boring bar may remain in the mounted position on the mast of the drilling rig.
- a hook device with which the flushing stub can be detachably fastened to an upper side of the drill rod can be arranged on the flushing stub.
- a corresponding device for hooking the flushing nozzle may be attached to the top of the drill rod.
- the flushing nozzle is designed with an outlet opening so that the cleaning liquid flows as large as possible over the boring bar, so that a good Abzzi Angel is achieved.
- the cleaning fluid is supplied to an interior of the drill rod.
- a difficult to clean interior can be reliably flushed from above with a tubular drill rod.
- a boring bar is generally to be understood as a working or guide bar used in civil engineering in construction machines, wherein there is no restriction on drilling.
- the boring bar may be a rigid guide bar which is assembled in one piece or from a plurality of bar elements.
- a Kelly bar is provided as the boring bar, which is composed of at least two tubular Kelly bar elements.
- a Kelly bar is a telescopic Boring bar, which has a predominantlykellystangenelement and at least one réellekellystangenelement.
- the Kelly bar elements are at least partially telescoped. This creates a larger free or receiving space for receiving the cleaning fluid within the Kelly bar.
- the Kellystangenmaschine can also be telescoped in total, in which case the austeleskop Arthurm Kelly bar elements are retracted in a cleaning hole.
- a flushing device is provided with a flushing pipe
- the flushing pipe is mounted on a top of the drill rod with a vertical drill rod and cleaning fluid can be supplied through the flushing device through the flushing nozzle, through which the drill rod flushed from above is.
- the cleaning arrangement according to the invention is designed in particular for carrying out the method described above. It can thus be achieved according to the advantages described above.
- a preferred cleaning arrangement is that a cleaning hole is provided in the bottom, in which the drill rod is at least partially retractable, and that the drill rod is flushable in the cleaning hole with cleaning liquid.
- the flushing action in the cleaning hole can be further enhanced by moving the boring bar up and down in the cleaning hole filled with cleaning liquid.
- the flushing device and / or a discharge device for discharging cleaning liquid in each case has at least one pump.
- only one flushing device can be provided with a pump, wherein after flushing the cleaning liquid with the flushed contaminated soil material in the surrounding soil or in the cleaning hole seeped when the place of cleaning is located in a contaminated area.
- the flushing nozzle for the cleaning arrangement according to the invention can be designed in any desired manner, preferably with a plurality of outlet openings or adjustable outlet nozzles. It is particularly advantageous according to a development of the invention that the flushing nozzle is formed arcuate with an outlet and an inlet to which a flushing hose is connected.
- the flushing hose is preferably connected to the flushing device with the at least one pump.
- a circulation possibly with a temporary storage, such as in a tank or basin, be provided for the cleaning liquid, with recycled cleaning liquid is used for a further rinsing, especially for a pre-rinse.
- a final final rinse of the drill rod can then be done with a fresh cleaning fluid.
- a connecting element for a hoist rope is attached to the flushing pipe.
- the flush can be promoted by means of a hoisting rope, such as by means of an auxiliary winch on the mast of a drill, to the top of a drill rod on the mast.
- the hoisting rope can also serve as a safety rope as well as for releasing the flushing nozzle after completing the flushing process.
- FIG Fig. 1 A cleaning arrangement 10 according to the invention for cleaning a contaminated boring bar 20 on a construction machine 2 is shown schematically in FIG Fig. 1 refer to.
- the construction machine 2 is executed in the illustrated embodiment as a drill.
- This has a carrier device 3 with a crawler undercarriage.
- a vertically oriented mast 4 is attached to the front side by means of a carriage movable a drill drive 7, also called power turret, is mounted vertically adjustable.
- a drill rod 20 is used in a basically known manner and stored thereon.
- the drill rod 20 is designed in the illustrated embodiment as a Kelly bar with three mutually telescopically arranged Kelly bar elements 27a, 27b and 27c.
- the drill rod 20 is suspended via a main cable 5 relative to the mast 4 and the drill drive 7 movable.
- a drilling tool is mounted on the underside of the boring bar 20, which drilling tool is dismantled in the illustrated embodiment in the cleaning of the boring bar 20.
- the construction machine 2 is moved to an intended cleaning hole 12, in which the drill rod 20 is at least partially retracted.
- the drill drive 7 has assumed its lower position on the mast 4.
- the kelly bar elements 27a, 27b and 27c are telescoped out.
- the cleaning hole 12 may be empty or already filled with a cleaning liquid.
- a flushing device 40 having a pump for supplying a cleaning liquid is provided.
- the flushing device 40 is formed in the illustrated embodiment box-shaped and can serve as a lift for an operator at the same time.
- an auxiliary or hoist rope 6 can be used, which is provided on the mast 4 of the construction machine 2.
- rinse pipe 30 is in the FIGS. 2 and 3 shown closer. This has a bent tubular body 32 with an outlet 34 and an inlet 33. At the inlet 33, a flange for attaching a supply hose for the cleaning liquid, not shown, is provided. The cleaning liquid is passed from the pump of the flushing device 40 via the supply hose to the flushing pipe 30.
- the arcuate flushing nozzle 30 is hooked to an open top of the tubular boring bar 20, as clearly shown in FIG Fig. 3 is shown.
- the flushing nozzle 30 has a plate-shaped support 38, with which the flushing nozzle 30 can be placed on an upper edge of the drill rod 20.
- the flushing nozzle 30 can be attached to a holding device, not shown, on the drill rod 20 or the drill drive 7, so that it has a positional fixation in the flushing operation.
- an eyelet-like connecting element 36 is provided on an upper side of the tubular body 32, into which hook hook of the hoist rope 6 can be hooked.
- an outside 24 of the boring bar 20 are flushed from above.
- a flushing of the outer side of the drill rod 20 can also take place when the drill rod 20 is pulled upwards from the lifting platform on the flushing device 40 via an operator with a hose or a corresponding high-pressure cleaner. Cleaning of the outside 24 is also readily possible after flushing the interior 22 in a horizontal position of the drill rod 20.
- the cleaning arrangement 10 according to the invention and the cleaning method according to the invention can also be used in other construction machines 2 for civil engineering with comparable rod-shaped arrangements, such as guide rods for trench wall milling. These guide rods are partially designed only for little or no rotational movements and can have a round or angular cross-section.
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
Die Erfindung betrifft ein Verfahren und eine Reinigungsanordnung zum Reinigen einer mit Schadstoff kontaminierten Bohrstange, wobei die Bohrstange in einer vertikalen Position angeordnet wird, ein Spülstutzen an einer Oberseite der Bohrstange angebracht wird und die Bohrstange mit einer Reinigungsflüssigkeit abgespült wird, welche über den Spülstutzen zugeführt wird.The invention relates to a method and a cleaning arrangement for cleaning a polluted boring bar, wherein the boring bar is arranged in a vertical position, a flushing nozzle is attached to an upper side of the boring bar and the boring bar is rinsed with a cleaning liquid supplied via the flushing port ,
Description
Die Erfindung betrifft ein Verfahren und eine Reinigungsanordnung zum Reinigen einer mit Schadstoff kontaminierten Bohrstange.The invention relates to a method and a cleaning arrangement for cleaning a polluted contaminant boring bar.
In bestimmten Fällen ist es erforderlich, Bohrungen in mit Schadstoff kontaminierten Böden niederzubringen. Dies kann beispielsweise erforderlich sein, wenn etwa Gründungspfähle, insbesondere Bohrpfähle, auf alten Industriegeländen, Hafenbereichen, aufgelassenen Deponien, etc. erstellt werden müssen. Derartige Bohrungen können Tiefen von 5 m bis 30 m oder tiefer erreichen. Hierzu wird eine Bohrstange verwendet, welche selbst am unteren Ende ein Bohrwerkzeug umfasst oder damit versehen ist. Die Bohrstange ist an einem außerhalb des Bohrlochs angeordneten Trägergerät vertikal verfahrbar angeordnet und in der Regel drehend angetrieben. Das abgetragene Bodenmaterial wird in der Regel beim Bohren aus dem Bohrloch abtransportiert. Nach Abschluss der Bohrung wird die Bohrstange wieder aus dem Bohrloch entfernt, wobei jedoch mit Schadstoff kontaminiertes Bodenmaterial an der Bohrstange anhaften kann.In certain cases it is necessary to drill holes in contaminated soil. This may be necessary, for example, when foundation piles, in particular bored piles, have to be erected on old industrial sites, harbor areas, abandoned landfills, etc. Such holes can reach depths of 5 m to 30 m or lower. For this purpose, a boring bar is used which comprises or is provided with a boring tool even at the lower end. The boring bar is arranged to be vertically displaceable on a carrier device arranged outside the borehole and as a rule driven in rotation. The removed soil material is usually removed during drilling from the wellbore. Upon completion of the drilling, the boring bar is removed from the borehole, but pollutant-contaminated soil may adhere to the boring bar.
Abhängig vom Grad der Kontaminierung des zu bearbeitenden Bodens kann es vorgeschrieben sein, die Bohrstange von dem kontaminierten Bodenmaterial zu reinigen, so dass kein Schadstoff über die Bohrstange in die Umwelt gelangen kann. Es kann daher erforderlich sein, eine Bohrstange nach jeder Bohrung oder zumindest bei Abschluss der Arbeiten in einem kontaminierten Bereich zu reinigen.Depending on the degree of contamination of the soil to be worked, it may be required to clean the boring bar from the contaminated soil material so that no pollutant can escape into the environment via the boring bar. It may therefore be necessary to clean a boring bar after each drilling or at least at the completion of work in a contaminated area.
Eine Schadstoffbelastung kann sich auch dadurch ergeben, dass die Bohrstange in eine belastete Bohr- oder Betonsuspension eintaucht.A pollutant load can also result from the fact that the drill rod is immersed in a contaminated drilling or concrete suspension.
Aufgrund der Länge einer Bohrstange von 10 m und mehr ist es dabei in der Regel erforderlich, die Bohrstange von dem Trägergerät aus der vertikalen Arbeitsposition zu demontieren und in eine horizontale Reinigungsposition am Boden zu verbringen. In dieser horizontalen Position kann die Bohrstange beispielsweise mit einem Hochdruckreiniger von anhaftendem Bodenmaterial befreit werden. Das abgespülte Bodenmaterial kann aufgefangen und entsorgt werden. Abschließend kann die gereinigte Bohrstange wieder am Mast des Bohrgeräts montiert werden.Due to the length of a boring bar of 10 m and more, it is usually required to disassemble the boring bar from the carrier from the vertical working position and to spend in a horizontal cleaning position on the ground. In this horizontal position, for example, the boring bar can be freed of adhering soil material with a high-pressure cleaner. The rinsed soil material can be collected and disposed of. Finally, the cleaned drill rod can be re-mounted on the mast of the drill.
Allerdings sind die Montagearbeiten der mehrere Tonnen schweren Bohrstange zeit- und arbeitsintensiv. Auch ist das Reinigen einer liegenden Bohrstange mittels eines Hochdruckreinigers von einer Person problematisch, insbesondere wenn eine rohrförmige Bohrstange mit einem inneren Hohlraum zu reinigen ist. Innenbereiche einer rohrförmigen Bohrstange sind nur schwer und mit einem erheblichen Arbeits- und Zeitaufwand von anhaftendem Bodenmaterial zu reinigen. Zudem ist ein entsprechender Platzbedarf für die Lagerung der Bohrstange notwendig.However, the assembly work of the several tons heavy boring bar time and labor intensive. Also, the cleaning of a horizontal boring bar by means of a high-pressure cleaner by a person is problematic, especially when a tubular drill rod is to be cleaned with an inner cavity. Interior areas of a tubular drill rod are difficult to clean and with considerable labor and time of adhering soil material. In addition, a corresponding space requirement for the storage of the drill rod is necessary.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren und eine Reinigungsanordnung zum Reinigen einer mit Schadstoff kontaminierten Bohrstange anzugeben, mit welchem eine Bohrstange besonders effizient gereinigt werden kann.The invention has for its object to provide a method and a cleaning arrangement for cleaning a polluted contaminant boring bar, with which a boring bar can be cleaned very efficient.
Die Aufgabe wird zum einen durch ein Verfahren mit den Merkmalen des Anspruchs 1 und zum anderen durch eine Reinigungsanordnung mit den Merkmalen des Anspruchs 10 gelöst. Bevorzugte Ausführungsformen der Erfindung sind in den abhängigen Ansprüchen angegeben.The object is achieved on the one hand by a method having the features of claim 1 and on the other hand by a cleaning arrangement having the features of claim 10. Preferred embodiments of the invention are indicated in the dependent claims.
Gemäß der Erfindung ist ein Verfahren zum Reinigen einer mit Schadstoff kontaminierten Bohrstange vorgesehen, bei dem die Bohrstange in einer vertikalen Position angeordnet wird, ein Spülstutzen an einer Oberseite der Bohrstange angebracht wird und die Bohrstange mit einer Reinigungsflüssigkeit abgespült wird, welche über den Spülstutzen zugeführt wird.According to the invention there is provided a method of cleaning a contaminant-contaminated boring bar by placing the boring bar in a vertical position, attaching a flushing nozzle to a top of the boring bar, and rinsing the boring bar with a cleaning liquid supplied via the flushing port ,
Eine Grundidee der Erfindung kann darin gesehen werden, eine Bohrstange nicht in einer horizontalen Position zu reinigen, sondern in einer vertikalen Position. Um diese Bohrstangen mit einer Länge von bis zu 10 m und mehr zu erreichen, kann nach der Erfindung an einer Oberseite einer im Wesentlichen vertikalen Bohrstange ein Spülstutzen angebracht werden, durch welchen Reinigungsflüssigkeit zugeführt werden kann. Die Reinigungsflüssigkeit kann vorzugsweise Wasser oder ein auf Wasser basierendes Fluid sein. Es können gegebenenfalls Tenside oder andere Zusätze vorgesehen sein, welche das Ablösen von Bodenmaterial unterstützen oder zur Behandlung und insbesondere Neutralisierung von Schadstoffen geeignet sind.A basic idea of the invention can be seen not to clean a boring bar in a horizontal position, but in a vertical position. Around To achieve drill rods with a length of up to 10 m and more, according to the invention can be attached to a top of a substantially vertical boring bar a flushing nozzle, through which cleaning liquid can be supplied. The cleaning liquid may preferably be water or a water-based fluid. Surfactants or other additives may optionally be provided which assist in the detachment of soil material or are suitable for the treatment and in particular neutralization of pollutants.
Gemäß einem weiteren Aspekt der Erfindung kann so die Bohrstange in einer im Wesentlichen vertikalen Betriebsposition an dem Trägergerät verbleiben. Über den Spülstutzen, welcher auch als Spülglocke bezeichnet werden kann, erfolgt ein Abspülen des anhaftenden Schadstoffs, etwa aus dem Boden, der Stütz- oder Bohrsuspension oder einer abbindenden Suspension zum Bilden eines Gründungselements. Ein Abspülen der Innen- und/oder Außenseite der Bohrstange kann durch eine Zuführung von Reinigungsflüssigkeit durch eine Spülvorrichtung erfolgen. Hierdurch kann eine ausreichende Dekontamination bei geringem Personal- und Zeitaufwand erfolgen.According to a further aspect of the invention, the boring bar can thus remain in a substantially vertical operating position on the carrier device. About the Spülstutzen, which can also be referred to as a flushing bell, carried out a rinsing of the adhering pollutant, such as from the soil, the support or drilling suspension or a setting suspension to form a foundation element. Rinsing the inside and / or outside of the drill rod can be done by supplying cleaning fluid through a flushing device. As a result, a sufficient decontamination can be done with little staff and time.
Eine bevorzugte Ausführungsform der Erfindung besteht darin, dass ein Reinigungsloch im Boden vorgesehen wird und die kontaminierte Bohrstange zum Abspülen des anhaftenden Schadstoffs in das Reinigungsloch eingefahren wird. Das Reinigungsloch im Boden kann dabei zum Auffangen des abgespülten Bodenmaterials dienen. Vorzugsweise befindet sich das Reinigungsloch im kontaminierten Bereich, so dass ein Einsickern von Reinigungsflüssigkeit mit Schadstoffen in den bereits kontaminierten Boden nicht weiter umweltbelastend ist. Das Reinigungsloch kann eine Tiefe von einigen Metern bis zu einer Tiefe entsprechend der Länge der Bohrstange und darüber hinaus aufweisen. Vorzugsweise kann das Reinigungsloch ein Bohrloch sein, welches mit einem Stützrohr ausgekleidet ist. Insbesondere kann das Reinigungsloch mit Reinigungsflüssigkeit gefüllt sein. Dabei kann die Bohrstange mittels des Bohrgerätes entlang des Mastes vertikal verfahren und in das Reinigungsloch eingefahren werden. Durch eine vertikale Auf- und Abwärtsbewegung der Bohrstange kann so ein zusätzlicher Spüleffekt erzeugt werden. Am unteren Ende des Reinigungslochs kann ein Absetzbereich zum Aufnehmen des abgespülten Bodenmaterials vorgesehen sein.A preferred embodiment of the invention is that a cleaning hole in the ground is provided and the contaminated drill rod is retracted for rinsing the adhering pollutant in the cleaning hole. The cleaning hole in the floor can serve to catch the rinsed soil material. Preferably, the cleaning hole is in the contaminated area, so that infiltration of cleaning liquid with pollutants in the already contaminated soil is not harmful to the environment. The cleaning hole may have a depth of several meters to a depth corresponding to the length of the boring bar and beyond. Preferably, the cleaning hole may be a borehole lined with a support tube. In particular, the cleaning hole may be filled with cleaning fluid. In this case, the drill rod can be moved vertically by means of the drill along the mast and retracted into the cleaning hole. By a vertical up and down movement of the drill rod so an additional rinsing effect can be generated. At the lower end of the cleaning hole, a settling area for receiving the rinsed soil material may be provided.
Grundsätzlich kann die Reinigungsflüssigkeit nach dem Abspülen mit dem abgespülten Bodenmaterial im Boden versickern, sofern sich der Reinigungsbereich in einem kontaminierten Bereich befindet. Insbesondere bei Verwendung eines Reinigungsloches ist es nach einer Weiterbildung der Erfindung vorteilhaft, dass Reinigungsflüssigkeit, vorzugsweise kontinuierlich, abgeführt wird.In principle, after rinsing with the rinsed soil material, the cleaning liquid can seep into the soil, provided that the cleaning area is located in a contaminated area. In particular, when using a cleaning hole, it is advantageous according to a development of the invention that cleaning liquid, preferably continuously, is discharged.
Insbesondere besteht eine Weiterbildung der Erfindung darin, dass die abgeführte Reinigungsflüssigkeit einer Entsorgungseinrichtung und/oder einer Wiederaufbereitungseinrichtung zugeführt wird. Hierdurch kann auch insgesamt eine Schadstoffreduktion der Umwelt erreicht werden.In particular, a development of the invention is that the discharged cleaning liquid is supplied to a disposal device and / or a reprocessing device. As a result, overall a pollutant reduction of the environment can be achieved.
Nach einer weiteren Ausführungsvariante des erfindungsgemäßen Verfahrens ist es vorteilhaft, dass der Spülstutzen mittels eines Hubseils entlang des Mastes eines Trägergeräts zur Oberseite der Bohrstange gefördert wird. Somit kann die Bohrstange insbesondere in der montierten Position am Mast des Bohrgerätes verbleiben. An dem Spülstutzen kann insbesondere eine Hakeneinrichtung angeordnet sein, mit welcher der Spülstutzen an einer Oberseite der Bohrstange lösbar befestigt werden kann. Insbesondere kann an der Oberseite der Bohrstange eine entsprechende Einrichtung zum Verhaken des Spülstutzens angebracht sein. Der Spülstutzen ist dabei mit einer Auslassöffnung so ausgebildet, dass die Reinigungsflüssigkeit möglichst großflächig über die Bohrstange strömt, so dass eine gute Abspülwirkung erreicht wird.According to a further embodiment variant of the method according to the invention, it is advantageous that the flushing connection is conveyed by means of a hoisting cable along the mast of a carrier device to the upper side of the boring bar. Thus, the boring bar may remain in the mounted position on the mast of the drilling rig. In particular, a hook device with which the flushing stub can be detachably fastened to an upper side of the drill rod can be arranged on the flushing stub. In particular, a corresponding device for hooking the flushing nozzle may be attached to the top of the drill rod. The flushing nozzle is designed with an outlet opening so that the cleaning liquid flows as large as possible over the boring bar, so that a good Abspülwirkung is achieved.
Besonders vorteilhaft ist es dabei, dass die Reinigungsflüssigkeit einem Innenraum der Bohrstange zugeführt wird. Somit kann insbesondere ein schwer zu reinigender Innenraum bei einer rohrförmigen Bohrstange zuverlässig von oben gespült werden.It is particularly advantageous that the cleaning fluid is supplied to an interior of the drill rod. Thus, in particular a difficult to clean interior can be reliably flushed from above with a tubular drill rod.
Im Sinne der Erfindung ist eine Bohrstange allgemein als im Tiefbau eingesetzte Arbeits- oder Führungsstange bei Baumaschinen zu verstehen, wobei keine Beschränkung auf ein Bohren gegeben sein muss.For the purposes of the invention, a boring bar is generally to be understood as a working or guide bar used in civil engineering in construction machines, wherein there is no restriction on drilling.
Grundsätzlich kann die Bohrstange eine starre Führungsstange sein, welche einstückig oder aus mehreren Stangenelementen zusammengesetzt ist. Eine besonders vorteilhafte Verfahrensvariante besteht nach der Erfindung darin, dass als Bohrstange eine Kellystange vorgesehen wird, welche aus mindestens zwei rohrförmigen Kellystangenelementen zusammengesetzt ist. Eine Kellystange ist dabei eine austeleskopierbare Bohrstange, welche ein Außenkellystangenelement und mindestens ein Innenkellystangenelement aufweist. Durch eine Spülung von oben können diese ineinander angeordneten Kellystangenelemente besonderes gut gereinigt werden.In principle, the boring bar may be a rigid guide bar which is assembled in one piece or from a plurality of bar elements. A particularly advantageous variant of the method according to the invention is that a Kelly bar is provided as the boring bar, which is composed of at least two tubular Kelly bar elements. A Kelly bar is a telescopic Boring bar, which has a Außenkellystangenelement and at least one Innenkellystangenelement. By flushing from above these nested Kelly bar elements can be cleaned very well.
Besonders zweckmäßig ist es dabei, dass zum Reinigen die Kellystangenelemente zumindest teilweise austeleskopiert werden. Hierdurch entsteht ein größerer Frei- oder Aufnahmeraum zum Aufnehmen der Reinigungsflüssigkeit innerhalb der Kellystange. Vorzugsweise können die Kellystangenelemente auch insgesamt austeleskopiert sein, wobei dann die austeleskopierten Kellystangenelemente in einem Reinigungsloch eingefahren sind.It is particularly expedient that for cleaning the Kelly bar elements are at least partially telescoped. This creates a larger free or receiving space for receiving the cleaning fluid within the Kelly bar. Preferably, the Kellystangenelemente can also be telescoped in total, in which case the austeleskopiertem Kelly bar elements are retracted in a cleaning hole.
Hinsichtlich einer Reinigungsanordnung wird die eingangs genannte Aufgabe dadurch gelöst, dass eine Spülvorrichtung mit einem Spülstutzen vorgesehen ist, der Spülstutzen bei vertikaler Bohrstange an einer Oberseite der Bohrstange angebracht ist und durch die Spülvorrichtung über den Spülstutzen Reinigungsflüssigkeit zuführbar ist, durch welche die Bohrstange von oben spülbar ist.With regard to a cleaning arrangement, the object mentioned above is achieved in that a flushing device is provided with a flushing pipe, the flushing pipe is mounted on a top of the drill rod with a vertical drill rod and cleaning fluid can be supplied through the flushing device through the flushing nozzle, through which the drill rod flushed from above is.
Die erfindungsgemäße Reinigungsanordnung ist insbesondere zum Durchführen des zuvor beschriebenen Verfahrens ausgebildet. Es können somit die zuvor beschriebenen Vorteile entsprechend erzielt werden.The cleaning arrangement according to the invention is designed in particular for carrying out the method described above. It can thus be achieved according to the advantages described above.
Eine bevorzugte Reinigungsanordnung besteht darin, dass ein Reinigungsloch im Boden vorgesehen ist, in welches die Bohrstange zumindest mit einem Teil einfahrbar ist, und dass die Bohrstange in dem Reinigungsloch mit Reinigungsflüssigkeit spülbar ist. Die Spülwirkung in dem Reinigungsloch kann noch dadurch verstärkt werden, dass die Bohrstange in dem mit Reinigungsflüssigkeit gefüllten Reinigungsloch auf und ab bewegt wird.A preferred cleaning arrangement is that a cleaning hole is provided in the bottom, in which the drill rod is at least partially retractable, and that the drill rod is flushable in the cleaning hole with cleaning liquid. The flushing action in the cleaning hole can be further enhanced by moving the boring bar up and down in the cleaning hole filled with cleaning liquid.
Weiterhin ist es nach einer Ausführungsvariante der erfindungsgemäßen Reinigungsanordnung vorteilhaft, dass die Spülvorrichtung und/oder eine Abführeinrichtung zum Abführen von Reinigungsflüssigkeit jeweils mindestens eine Pumpe aufweist. Insgesamt kann aber auch nur eine Spülvorrichtung mit einer Pumpe vorgesehen sein, wobei nach dem Spülen die Reinigungsflüssigkeit mit dem abgespülten kontaminierten Bodenmaterial im umgebenden Boden oder in dem Reinigungsloch versickert, wenn sich der Ort der Reinigung in einem kontaminierten Bereich befindet.Furthermore, according to an embodiment variant of the cleaning arrangement according to the invention, it is advantageous that the flushing device and / or a discharge device for discharging cleaning liquid in each case has at least one pump. Overall, however, only one flushing device can be provided with a pump, wherein after flushing the cleaning liquid with the flushed contaminated soil material in the surrounding soil or in the cleaning hole seeped when the place of cleaning is located in a contaminated area.
Grundsätzlich kann der Spülstutzen für die erfindungsgemäße Reinigungsanordnung in einer beliebigen Weise ausgebildet sein, vorzugsweise mit mehreren Auslassöffnungen oder verstellbaren Austrittsdüsen. Besonders vorteilhaft ist es nach einer Weiterbildung der Erfindung, dass der Spülstutzen bogenförmig mit einem Auslass und einem Einlass ausgebildet ist, an welchem ein Spülschlauch angeschlossen ist. Der Spülschlauch ist dabei vorzugsweise mit der Spülvorrichtung mit der mindestens einen Pumpe verbunden. Gegebenenfalls kann auch eine Kreislaufführung, gegebenenfalls mit einer Zwischenspeicherung, etwa in einem Tank oder Becken, für die Reinigungsflüssigkeit vorgesehen sein, wobei wieder aufbereitete Reinigungsflüssigkeit für einen weiteren Spülvorgang, insbesondere für eine Vorspülung genutzt wird. Eine abschließende Endspülung der Bohrstange kann dann mit einer frischen Reinigungsflüssigkeit erfolgen.In principle, the flushing nozzle for the cleaning arrangement according to the invention can be designed in any desired manner, preferably with a plurality of outlet openings or adjustable outlet nozzles. It is particularly advantageous according to a development of the invention that the flushing nozzle is formed arcuate with an outlet and an inlet to which a flushing hose is connected. The flushing hose is preferably connected to the flushing device with the at least one pump. Optionally, a circulation, possibly with a temporary storage, such as in a tank or basin, be provided for the cleaning liquid, with recycled cleaning liquid is used for a further rinsing, especially for a pre-rinse. A final final rinse of the drill rod can then be done with a fresh cleaning fluid.
Weiterhin ist es besonders zweckmäßig, dass an dem Spülstutzen ein Verbindungselement für ein Hubseil angebracht ist. Somit kann der Spülstutzen mittels eines Hubseiles, etwa mittels einer Hilfsseilwinde am Mast eines Bohrgerätes, bis zur Oberseite einer Bohrstange am Mast gefördert werden. Das Hubseil kann auch als ein Sicherungsseil sowie zum Lösen des Spülstutzens nach Abschluss des Spülvorganges dienen.Furthermore, it is particularly expedient that a connecting element for a hoist rope is attached to the flushing pipe. Thus, the flush can be promoted by means of a hoisting rope, such as by means of an auxiliary winch on the mast of a drill, to the top of a drill rod on the mast. The hoisting rope can also serve as a safety rope as well as for releasing the flushing nozzle after completing the flushing process.
Die Erfindung wird nachfolgend anhand von bevorzugten Ausführungsbeispielen weiter beschrieben, welche schematisch in den Zeichnungen dargestellt sind. In den Zeichnungen zeigen:
- Fig. 1:
- eine schematische Seitenansicht einer erfindungsgemäßen Reinigungsanordnung;
- Fig. 2:
- eine perspektivische Ansicht eines erfindungsgemäßen Spülstutzens; und
- Fig. 3:
- eine Ausschnittsdarstellung zu einer Bohrstange mit angehängtem Spülstutzen.
- Fig. 1:
- a schematic side view of a cleaning arrangement according to the invention;
- Fig. 2:
- a perspective view of a flushing nozzle according to the invention; and
- 3:
- a sectional view of a drill rod with attached Spülstutzen.
Eine erfindungsgemäße Reinigungsanordnung 10 zum Reinigen einer kontaminierten Bohrstange 20 an einer Baumaschine 2 ist schematisch der
Bei der dargestellten Reinigungsanordnung 10 ist die Baumaschine 2 an ein vorgesehenes Reinigungsloch 12 gefahren, in welches die Bohrstange 20 zumindest teilweise eingefahren ist. Hierzu hat der Bohrantrieb 7 seine untere Stellung am Mast 4 eingenommen. Die Kellystangenelemente 27a, 27b und 27c sind austeleskopiert. Das Reinigungsloch 12 kann leer oder bereits mit einer Reinigungsflüssigkeit gefüllt sein.In the illustrated cleaning assembly 10, the
In dem dargestellten Ausführungsbeispiel gemäß
Der in
Der bogenförmige Spülstutzen 30 wird an einer offenen Oberseite der rohrförmigen Bohrstange 20 eingehakt, wie anschaulich in
Bei der in
Die erfindungsgemäße Reinigungsanordnung 10 und das erfindungsgemäße Reinigungsverfahren können auch bei anderen Baumaschinen 2 für den Tiefbau mit vergleichbaren stangenförmigen Anordnungen eingesetzt werden, so etwa bei Führungsstangen für Schlitzwandfräsen. Diese Führungsstangen sind teilweise nur für geringe oder überhaupt keine Drehbewegungen ausgelegt und können einen runden oder eckigen Querschnitt aufweisen.The cleaning arrangement 10 according to the invention and the cleaning method according to the invention can also be used in
Claims (14)
dadurch gekennzeichnet,
dass ein Reinigungsloch im Boden (12) vorgesehen wird und
dass die kontaminierte Bohrstange (20) zum Abspülen des anhaftenden Schadstoffs in das Reinigungsloch (12) eingefahren wird.Method according to claim 1,
characterized,
that a cleaning hole in the bottom (12) is provided and
that the contaminated boring bar (20) is retracted into the cleaning hole (12) for rinsing away the adhering pollutant.
dadurch gekennzeichnet,
dass Reinigungsflüssigkeit, vorzugsweise kontinuierlich, abgeführt wird.Method according to claim 1 or 2,
characterized,
that cleaning liquid, preferably continuously, is discharged.
dadurch gekennzeichnet,
dass die abgeführte Reinigungsflüssigkeit einer Entsorgungseinrichtung und/oder einer Wiederaufbereitungseinrichtung zugeführt wird.Method according to claim 3,
characterized,
that the discharged cleaning liquid is supplied to a disposal device and / or a reprocessing device.
dadurch gekennzeichnet,
dass der Spülstutzen (30) mittels eines Hubseils (6) entlang des Mastes (4) eines Trägergeräts (3) zur Oberseite der Bohrstange (20) gefördert wird.Method according to one of claims 1 to 4,
characterized,
in that the flushing nozzle (30) is conveyed by means of a hoisting cable (6) along the mast (4) of a carrier device (3) to the upper side of the drill rod (20).
dadurch gekennzeichnet,
dass die Reinigungsflüssigkeit einem Innenraum (22) der Bohrstange (20) zugeführt wird.Method according to one of claims 1 to 5,
characterized,
that the cleaning liquid an interior (22) of the boring bar (20) is supplied.
dadurch gekennzeichnet,
dass als Bohrstange (20) eine Kellystange vorgesehen wird, welche aus mindestens zwei rohrförmigen Kellystangenelementen (27) zusammengesetzt ist.Method according to one of claims 1 to 6,
characterized,
in that a Kelly bar, which is composed of at least two tubular Kelly bar elements (27), is provided as the boring bar (20).
dadurch gekennzeichnet,
dass zum Reinigen die Kellystangenelemente (27) zumindest teilweise austeleskopiert werden.Method according to claim 7,
characterized,
that for cleaning the Kelly bar elements (27) are at least partially telescoped.
dadurch gekennzeichnet,
dass der Spülstutzen (30) über einen Zufuhrschlauch mit einer Spülvorrichtung (40) verbunden ist, durch welche Reinigungsflüssigkeit zugeführt wird.Method according to one of claims 1 to 8,
characterized,
in that the flushing nozzle (30) is connected via a feed hose to a flushing device (40) through which cleaning liquid is supplied.
dadurch gekennzeichnet,
dass ein Reinigungsloch (12) im Boden vorgesehen ist, in welches die Bohrstange (20) zumindest mit einem Teil einfahrbar ist, und
dass die Bohrstange (20) in dem Reinigungsloch (12) mit Reinigungsflüssigkeit spülbar ist.Cleaning arrangement according to claim 10,
characterized,
that a cleaning hole (12) is provided in the bottom, in which the boring bar (20) is retractable with at least a part, and
in that the drill rod (20) in the cleaning hole (12) can be flushed with cleaning liquid.
dadurch gekennzeichnet,
dass die Spülvorrichtung (40) und/oder eine Abführeinrichtung zum Abführen von Reinigungsflüssigkeit jeweils mindestens eine Pumpe aufweist.Cleaning arrangement according to claim 11,
characterized,
in that the flushing device (40) and / or a discharge device for discharging cleaning liquid in each case has at least one pump.
dadurch gekennzeichnet,
dass der Spülstutzen (30) bogenförmig mit einem Auslass (34) und einem Einlass (33) ausgebildet ist, an welchem ein Spülschlauch angeschlossen ist.Cleaning arrangement according to one of claims 10 to 12,
characterized,
in that the flushing nozzle (30) is formed in an arcuate manner with an outlet (34) and an inlet (33) to which a flushing hose is connected.
dadurch gekennzeichnet,
dass an dem Spülstutzen (30) ein Verbindungselement (36) für ein Hubseil (6) angebracht ist.Cleaning arrangement according to one of claims 10 or 13,
characterized,
in that a connecting element (36) for a hoist rope (6) is attached to the flushing stub (30).
Priority Applications (1)
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EP17177659.4A EP3418487B1 (en) | 2017-06-23 | 2017-06-23 | Method for cleaning a drilling rod contaminated with pollutant and cleaning assembly for same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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EP17177659.4A EP3418487B1 (en) | 2017-06-23 | 2017-06-23 | Method for cleaning a drilling rod contaminated with pollutant and cleaning assembly for same |
Publications (2)
Publication Number | Publication Date |
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EP3418487A1 true EP3418487A1 (en) | 2018-12-26 |
EP3418487B1 EP3418487B1 (en) | 2020-08-05 |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5927307A (en) * | 1996-08-13 | 1999-07-27 | King; Glenn Frederick | Apparatus for environmentally acceptable cleaning of oil well components |
WO2012026874A1 (en) * | 2010-08-26 | 2012-03-01 | Atlas Copco Rock Drills Ab | Method and system for determining a variation in a flushing medium flow and rock drilling apparatus |
GB2520301A (en) * | 2013-11-15 | 2015-05-20 | Mincon Internat | Filter drill rod adapted for cleaning |
US20160123116A1 (en) * | 2014-10-31 | 2016-05-05 | Spoked Solutions LLC | Systems and methods for managing debris in a well |
-
2017
- 2017-06-23 EP EP17177659.4A patent/EP3418487B1/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5927307A (en) * | 1996-08-13 | 1999-07-27 | King; Glenn Frederick | Apparatus for environmentally acceptable cleaning of oil well components |
WO2012026874A1 (en) * | 2010-08-26 | 2012-03-01 | Atlas Copco Rock Drills Ab | Method and system for determining a variation in a flushing medium flow and rock drilling apparatus |
GB2520301A (en) * | 2013-11-15 | 2015-05-20 | Mincon Internat | Filter drill rod adapted for cleaning |
US20160123116A1 (en) * | 2014-10-31 | 2016-05-05 | Spoked Solutions LLC | Systems and methods for managing debris in a well |
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