EP2815062B1 - Device for dry drilling using drilling debris suction - Google Patents

Device for dry drilling using drilling debris suction Download PDF

Info

Publication number
EP2815062B1
EP2815062B1 EP13708656.7A EP13708656A EP2815062B1 EP 2815062 B1 EP2815062 B1 EP 2815062B1 EP 13708656 A EP13708656 A EP 13708656A EP 2815062 B1 EP2815062 B1 EP 2815062B1
Authority
EP
European Patent Office
Prior art keywords
dust
filter
cuttings
accordance
designed
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
EP13708656.7A
Other languages
German (de)
French (fr)
Other versions
EP2815062A2 (en
Inventor
Reinhold Both
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CFT GmbH Compact Filter Technic
Original Assignee
CFT GmbH Compact Filter Technic
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CFT GmbH Compact Filter Technic filed Critical CFT GmbH Compact Filter Technic
Publication of EP2815062A2 publication Critical patent/EP2815062A2/en
Application granted granted Critical
Publication of EP2815062B1 publication Critical patent/EP2815062B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/06Arrangements for treating drilling fluids outside the borehole
    • E21B21/07Arrangements for treating drilling fluids outside the borehole for treating dust-laden gaseous fluids
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/01Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
    • E21B21/015Means engaging the bore entrance, e.g. hoods for collecting dust

Definitions

  • the invention relates to a device for dry drilling with cuttings flushing and dust extraction for underground mining use with a drill with one or more drill cradles, or those for purging the cuttings and the dust through the gap between the drill pipe and the borehole wall arranged at the borehole mouth suction cup and a suction hose for transporting the dissolved material to the filter housing of the dust filter and the vacuum generator are assigned, wherein the input nozzle serving as a Bohrkleinseparierer baffle is arranged downstream and wherein the dust filter is formed both the dust and the cuttings from the volume flowativfaird.
  • Bohrwagen ie devices for dry drilling with Bohrkleinabsaugung a drill is mounted on a carriage movable on a chassis. These mobile drilling rigs are used, for example, underground driving in the distance and work with air flushing to transport out of the wellbore deepest material out of this.
  • Such Bohrwagen are equipped with wheels or usually with caterpillar tracks and can also produce the so-called large-bore holes, which in these known devices ( DE 39 09 058 A1 ) the respective borehole is covered by a suction cup and connected to the suction cup air hose is connected to a vacuum generator and wherein for the deposition of the coarse material, a baffle plate system and for the deposition of the fine material, a filter unit are provided.
  • the baffle plate system is complex and works in addition to its task as a separator especially as a crusher of the incident on the sheet cuttings.
  • the filters used are not described in detail.
  • hose filters that are difficult to clean were common. Since the entire unit is arranged on the Bohrwagen, the mechanical equipment, ie the structure of the vacuum generator and also the filter unit contrary to the teaching of the GB 695010A at most only to provide a drill rig with the necessary suction. Because of these difficulties, water flushing is used whenever possible and only with air extraction where water is not available. Apart from the fact that z. B. drilling in salt are possible only with appropriate air extraction, the dry suction and dry processing safety and hygienic advantages.
  • a vacuum cleaner is known in which, in a the actual filter upstream, a kind of cyclone performing component, the entrained by the dust water and snow is separated from the dust. In this way, adverse caking on the filter surfaces, here covered filter tubes are prevented.
  • the illustrated vacuum generator is a Venturi tube or a Venturi jet pump. This type of pump has a known low efficiency and is characterized by a significantly larger size. In addition, the pipes pollute easily, so they just underground can hardly be used.
  • GB 695 010 A from 1950
  • a deduster for dry drilling is described, wherein the dust extractor are associated with several drills with Staubabsaugetechnik.
  • the invention is based on the object to provide a cuttings and the dust almost independent of the amount safely deducted from the well dedusting device.
  • each Bohrlafette with Bohrklein- / Staubabsaugung a dust filter and a rotary piston blower or a vacuum pump, which serve as a volume flow stable vacuum generator is assigned, that the baffle has a rubber or plastic coating and that the dust filter as a surface filter With Compact elements that are used by the clean gas side into the filter housing are formed.
  • the surface filter itself is equipped with stable compact elements that can be used individually in the filter housing, which has the advantage that these compact elements are largely insensitive to the incoming dry cuttings and the dust and that they are arranged in particular so that very large areas for dedusting are available so that a satisfactory extraction and dedusting process is always guaranteed, even if there is a large amount of cuttings and especially dust.
  • This surface filter unit is a back-cleaning filter. The dusty air is fed through the suction hose to the surface filter. In the first step, the cuttings-dust mixture flows against the baffle, which separates the coarse-grained material from the dust-air mixture.
  • the elements associated with the surface filter are arranged and designed such that they also resist the coarser cuttings components or ensure that they are separated from the airflow.
  • the baffle wall used at the inlet nozzle and as Bohrkleinseparierer is made of metal. Against this baffle, the incoming air / dust stream or cuttings flow is passed, so that the heavier parts suffer such a large reduction in speed that they fall down and then separated or usually be discharged together with the dust.
  • the coarser components of the air stream to be cleaned are thus safely deposited for the actual filter elements harmless before, so that the elements reach much longer service life.
  • the volume flow stable vacuum generator is a rotary piston blower or a vacuum pump.
  • Such positive displacement blowers operate without internal compression and resemble gear and rotary vane pumps. In such a rotary blower, two symmetrical rotary pistons rotate uniformly against each other.
  • the air mixture flows into the fan housing, which encloses the two pistons, and is forcibly conveyed to the delivery side in the delivery chambers, which are formed by rotary pistons and housing.
  • the volume of air delivered is compressed by backflow from the discharge nozzle.
  • the discharge pressure adjusts according to the resistance of the pipeline and the downstream equipment. This has the advantage that with a change in the resistance in the suction line up to a maximum value, the capacity remains constant.
  • the big advantage of this rotary blower is that they work practically even with varying pressure loss.
  • the vacuum generator, the surface filter and any energy producers are assigned to a common trailer to be connected to the drilling vehicle or directly as a compact component drilling jumbo.
  • the arrangement on a separate trailer, for example, behind the Bohrwagen of this taken back and forth, has the advantage that even relatively large-sized elements can be used without any problems, because for the necessary footprint is available.
  • all necessary for dust removal and extraction components can be accommodated in a group and even if they are assigned as a compact component drilling the car directly, so are permanently connected to this.
  • the trailer can be equipped with wheels or with skids, so that he can easily carry out the necessary movements with the drilling carriage.
  • the one or more energy producers for the cleaning of the surface filters are designed as mobile compressors or a hydraulic drive comprising. As a rule, they can be supplied from the drilling vehicle so that separate supply facilities are not required.
  • the cleaning process is carried out by an intermittent pressure shock, which takes place counter to the outflow direction.
  • the dry dust cakes are released from the filter elements by the sudden expansion and / or vibration of the filter elements and fall into the underlying transport screw.
  • the invention provides that the baffle wall in the region of the inlet nozzle has the rubber or plastic coating.
  • the noise level can be lowered significantly and at the same time the sheet metal can be protected so that, if necessary, only a recoating of the baffle wall becomes necessary if this coating is too worn or damaged.
  • the maintenance work and the repair work can be substantially simplified or even reduced, whereby one can confine itself advantageously to the area of the sheet or the baffle wall, which is actually taken up by the impinging coarse grains.
  • the compact elements of the surface filter can be inserted from the clean gas side into the filter housing, wherein it is provided according to the invention that the filter housing has on the clean gas side a manually operable housing door.
  • the housing door is opened by hand, either swung aside or taken out, so then the interior of the surface filter to feed easily with the compact elements or perform the necessary maintenance.
  • both the cuttings as well as the finer dust are expediently discharged together from the filter housing, which is possible because the filter housing is equipped on the housing bottom with a pendulum flap discharge.
  • the small cuttings mixture is discharged discontinuously but evenly into the discharge unit, so that it can then be discharged via this and finally disposed of.
  • the pendulum flap discharge ensures that the necessary negative pressure in the filter housing itself remains virtually unaffected or largely unaffected so that the downstream vacuum generators can not suck in air via this pendulum flap outlet.
  • the pendulum flap discharge is formed transiently in a tube screw conveyor or chain scraper conveyor, wherein the tube is bent up and end provided with a rotary valve provided with discharge.
  • the tube screw conveyor and also the chain scraper conveyor run in a closed tube, so that the inflow of external air can be excluded up to the rotary valve.
  • the separated material is filled into a corresponding transport container to be disposed of further.
  • the discharge of the pipe screw with a level indicator or monitoring equipped dust collection systems preferably bags are assigned.
  • bags have a large receiving volume and consist of plastic threads, which ensure with little elasticity that a lot of overburden or cuttings and dust can be filled.
  • closed bags and high amounts of particulate matter containing materials can be safely transported to the overburden.
  • the elements of the surface filter as the European Plastics Test Directive are sufficiently flame retardant and / or antistatic steel body filter elements are formed.
  • the elements of the surface filter as the European Plastics Test Directive are sufficiently flame retardant and / or antistatic steel body filter elements are formed.
  • the elements of the surface filter as the European Plastics Test Directive are sufficiently flame retardant and / or antistatic steel body filter elements are formed.
  • Such devices of the invention can also be used in hazardous areas, without a conversion is required.
  • the invention is particularly characterized by the fact that a device for suction and filtering is created during dry drilling, which always provides a stable volume flow independent of the changing pressure loss, so that a uniform drilling is possible.
  • the resulting cuttings and the dust are safely transported out of the well and then further processed in the device or air and dust are separated, so that the clean air can then escape from the device, which is not a burden on the environment.
  • a cyclone is only used in extreme cases, an uncertainty factor is switched off, without the coarse dust content or better the Bohrkleinanteil the air in the surface filter is a problem. This is namely designed so that the actual elements or surface filter parts are protected from these coarser portions.
  • all device parts or elements are assembled into a compact unit, which are assigned either to the Bohrwagen itself or a separate trailer, which follows the drill and has its own rolling elements or slides.
  • this suction device which is assigned to each drill mount as a unit is no longer hindering the drilling work, so optimal for larger maintenance intervals Drilling can be achieved.
  • FIG. 1 is shown by the suction device 1 substantially the Bohrkleinseparierer 2 'and dust filter 2.
  • the vacuum generator 3 can only partially be seen, and indeed, because it is a side view, essentially only the clean air inlet 35 and the clean air outlet 36 of this vacuum generator 3 can be seen here.
  • the reference numeral 10 illustrates that here the vacuum generator 3 is shown in the training as a rotary blower 10.
  • the Bohrkleinseparierer 2 'and dust filter 2 is a surface filter 4, in the filter housing 17 a plurality of elements 5, 6 are housed. This surface filter 4, 4 ', 4 "is as in FIGS.
  • FIG. 3 are then also the other rotary blower 11 and 12 can be seen.
  • the actual area filter 4 is here associated with an intermediate trailer 14, which is fixed on the trailer 8. It may also be rails 38, 39, such as FIG. 3 suggests.
  • the air-dust-Bohrkleingemisch is passed via the suction hose 16 and the inlet nozzle 15 into the interior of the filter housing 17.
  • the coarser constituents of the air-dust mixture will impact on this rubber or plastic coating 19 with appropriate speed and then fall down towards the housing bottom 25, while the air-particulate mixture between the elements 5, 6, here in the form of rigid body filter elements 22, 23 penetrates into the dust while the outside remains on the filter surfaces, while the cleaned gas or the Air in the direction of the clean gas side 20 of the filter housing 17 flows and is then discharged via the outlet port 24.
  • a housing door 21 is attached, which can be opened via a door handle 37 so that then the rigid body filter elements 22, 23 can be easily disassembled or mounted, so that the installation is advantageously carried out always from the clean air side or clean gas side 20 ago can be.
  • the coarser dust but also the fine dust and cuttings fall as described in the direction of the housing bottom 25, where this mixture then passes through the pendulum flap discharge 26 in the tube screw conveyor 27.
  • This tube screw conveyor 27 has a tube screw 28 which rotates in the closed tube 29 and ensures that the dust mixture is conveyed in the direction of discharge 30.
  • a rotary valve 31 ensures that the mixture, without air can be sucked into the bags arranged below 32, 33 falls.
  • These bags 32, 33 rest on pallets 34 and are well transportable together with these pallets 34. However, they can also be transported alone, for which they can be equipped with appropriate loops.
  • FIGS. 2 and 3 clarify that the clean gas leaving the filter housing 17 or the clean air via the outlet port 24 and a hose not shown here to the clean air inlet 35 of the rotary blower 10 or 11 and 12 is guided to be subjected there to the vacuum generating process.
  • the suction power can be brought to at least 50% higher than the purging air, so that a complete dust detection is always ensured. Since the Abscheideitz the filter is very high, breathable air leaves the surface filter 4 and the vacuum generator. 3
  • FIG. 2 a side view, in particular, the clean air inlets 35 and clean air outlets 36 are shown, and indeed all coming here for use rotary lobe blower 10, 11, 12. That it is three units also with respect to the surface filter 4, illustrates FIG. 3 In this case, these surface filters are provided with the reference symbols 4, 4 'and 4 ". As a rule, these individual surface filters 4, 4', 4" are fixed on the intermediate trailers 14, but these intermediate trailers 14 are also designed as running rails 38, 39 can be or can be used.
  • the Figures 4-6 show an embodiment in which to support the Bohrkleinseparierers 2 'and the dust filter 2 the filter housing 17 outside a cyclone 50 assigned and thus upstream of the elements 5, 6 in the filter housing 17.
  • This cyclone 50 can be switched so that it separates a certain coarser grain class of cuttings, so that the subsequent baffle 18 is protected from these coarser pieces of cuttings. But it can also be adjusted so that it separates a certain amount of cuttings, so as to relieve the subsequent Bohrkleinseparierer 2 'in the filter housing 17. It is also possible to remove the cyclone 50 from the influx, for which the suction hose 16 is stripped from the feed nozzle 51 and placed on the bypass pipe 52. The dust-laden air is then led in bypassing the cyclone 50 directly into the filter housing 17.
  • FIG. 1 the end 53 of the suction hose 16 is shown connected to one of the inlet ports 15, 51, 52.
  • the outlet port 24 at the other end of the filter housing 17 of the connecting hose 54 is connected, which in FIG. 4 is shown in dashed lines and filter housing 17 and vacuum generator 3 and plunger blower 10, 11, 12 interconnected.
  • a dust container 55 which is equipped with a level indicator 57.
  • the filter housing 17 has at the upper edge 58 via a plurality of suspension eyelets 56 so as to be able to transport the entire component easier.

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Cyclones (AREA)
  • Earth Drilling (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zum Trockenbohren mit Bohrkleinspülung und Staubabsaugung für den Untertagebergbaueinsatz mit einem Bohrgerätmit einer oder mehreren Bohrlafetten, der oder denen zum Herausspülen des Bohrkleins und des Staubes durch den Spalt zwischen Bohrgestänge und Bohrlochwand eine am Bohrlochmund angeordnete Saugglocke und ein Saugschlauch zum Transport des gelösten Materials zum Filtergehäuse des Staubfilters und zum Unterdruckerzeuger zugeordnet sind, wobei dem Eingangsstutzen eine als Bohrkleinseparierer dienende Prallwand nachgeordnet ist und wobei der Staubfilter sowohl den Staub als auch das Bohrklein aus dem Volumenstrom niederschlagend ausgebildet ist.The invention relates to a device for dry drilling with cuttings flushing and dust extraction for underground mining use with a drill with one or more drill cradles, or those for purging the cuttings and the dust through the gap between the drill pipe and the borehole wall arranged at the borehole mouth suction cup and a suction hose for transporting the dissolved material to the filter housing of the dust filter and the vacuum generator are assigned, wherein the input nozzle serving as a Bohrkleinseparierer baffle is arranged downstream and wherein the dust filter is formed both the dust and the cuttings from the volume flow niederschlagend.

Bei allgemein bekannten Bohrwagen, d. h. Vorrichtungen zum Trockenbohren mit Bohrkleinabsaugung ist ein Bohrgerät auf einer Lafette verfahrbar auf einem Fahrwerk montiert. Diese mobilen Bohrwagen werden beispielsweise unter Tage im Streckenvortrieb eingesetzt und arbeiten mit Luftspülung, um das im Bohrlochtiefsten gelöste Material aus diesem heraus zu transportieren. Solche Bohrwagen sind mit Rädern oder meist mit Raupenketten ausgerüstet und können auch die so genannten Großlochbohrungen herstellen, wobei bei diesen bekannten Vorrichtungen ( DE 39 09 058 A1 ) das jeweilige Bohrloch über eine Saugglocke abgedeckt und der an die Saugglocke angeschlossene Luftschlauch mit einem Unterdruckerzeuger verbunden ist und wobei für die Abscheidung des groben Materials ein Prallblechsystem und für die Abscheidung des feinen Materials eine Filtereinheit vorgesehen sind. Als Unterdruckerzeuger dienen Radialventilatoren, die zumindest grundsätzlich den notwendigen Unterdruck erzeugen, um Bohrklein und Staub mittels der Luft durch den Spalt zwischen Bohrgestänge und Bohrlochwand heraus zu spülen. Zur Unterstützung wird dabei häufig Druckluft über die Bohrstangen zusätzlich in das Bohrloch hineingedrückt. Nachteilig bei diesen bekannten Vorrichtungen ist, dass es auch bei entsprechend großen Saugglocken schwierig ist, den gesamten Staub und auch das gesamte Bohrklein sicher zu erfassen. Die Staubabscheidung über den beim allgemeinen Stand der Technik zusätzlich eingesetzten Zyklon bringt Probleme, weil dieser austragsseitig aus Sicherheitsgründen über eine Art Manschette verschlossen ist. So ist nicht immer mit der nötigen Sicherheit der Abzug des groben Materials möglich. Die als Unterdruckerzeuger bei der DE 39 09 058 A1 zum Einsatz kommenden Radialventilatoren haben eine flache Kennlinie und können bei ansteigendem Druckverlust den notwendigen Volumenstrom nicht einhalten. Es kommt immer wieder zu Störungen, sodass der Bohrbetrieb in Mitleidenschaft gezogen wird. Das Prallblechsystem ist aufwendig aufgebaut und wirkt neben seiner Aufgabe als Separierer vor allem als Zerkleinerer des auf das Blech auftreffenden Bohrkleins. Die eingesetzten Filter sind nicht näher beschrieben. Üblich waren seinerzeit Schlauchfilter, die schwer zu reinigen sind. Da die gesamte Einheit auf dem Bohrwagen angeordnet ist, reicht die maschinelle Ausrüstung, d. h. der Aufbau des Unterdruckerzeugers und auch der Filtereinheit entgegen der Lehre nach der GB 695010A allenfalls nur um eine Bohrlafette mit der notwendigen Absaugung zu versehen. Aufgrund dieser Schwierigkeiten wird nach Möglichkeit mit Wasserspülung gearbeitet und nur dort mit Luftabsaugung, wo kein Wasser zur Verfügung steht. Abgesehen davon, dass z. B. Bohrarbeiten im Salz nur mit entsprechender Luftabsaugung möglich sind, hat die trockene Absaugung und trockene Verarbeitung sicherheitstechnische und auch hygienische Vorteile.In well-known Bohrwagen, ie devices for dry drilling with Bohrkleinabsaugung a drill is mounted on a carriage movable on a chassis. These mobile drilling rigs are used, for example, underground driving in the distance and work with air flushing to transport out of the wellbore deepest material out of this. Such Bohrwagen are equipped with wheels or usually with caterpillar tracks and can also produce the so-called large-bore holes, which in these known devices ( DE 39 09 058 A1 ) the respective borehole is covered by a suction cup and connected to the suction cup air hose is connected to a vacuum generator and wherein for the deposition of the coarse material, a baffle plate system and for the deposition of the fine material, a filter unit are provided. As a vacuum generator serve radial fans, which generate at least in principle the necessary negative pressure to flush cuttings and dust by means of the air through the gap between the drill pipe and borehole wall out. to Support is often forced compressed air through the boring bars in the wellbore. A disadvantage of these known devices is that it is difficult even with correspondingly large suction cups to capture the entire dust and the entire cuttings safely. Dust separation over the cyclone additionally used in the general state of the art causes problems, because this is closed on the discharge side for safety reasons via a kind of sleeve. So not always with the necessary security of the deduction of coarse material is possible. The as a vacuum generator in the DE 39 09 058 A1 used radial fans have a flat curve and can not comply with the required volume flow with increasing pressure drop. There are always disruptions, so that the drilling operation is affected. The baffle plate system is complex and works in addition to its task as a separator especially as a crusher of the incident on the sheet cuttings. The filters used are not described in detail. At the time, hose filters that are difficult to clean were common. Since the entire unit is arranged on the Bohrwagen, the mechanical equipment, ie the structure of the vacuum generator and also the filter unit contrary to the teaching of the GB 695010A at most only to provide a drill rig with the necessary suction. Because of these difficulties, water flushing is used whenever possible and only with air extraction where water is not available. Apart from the fact that z. B. drilling in salt are possible only with appropriate air extraction, the dry suction and dry processing safety and hygienic advantages.

Aus der US 4 284 422 A (aus1981) ist ein Vakuum-cleaner bekannt, bei dem in einem dem eigentlichen Filter vorgeordneten, eine Art Zyklon darstellenden Bauelement das vom Staub mitgeführte Wasser und der Schnee vom Staub abgetrennt wird. Auf diese Weise sollen nachteilige Anbackungen an den Filterflächen, hier bespannte Filterrohre, verhindert werden. Beim dargestellten Unterdruckerzeuger handelt es sich um ein Venturirohr bzw. eine Venturi-Strahlpumpe. Diese Pumpenart hat einen bekannt niedrigen Wirkungsgrad und zeichnet sich durch eine deutlich größere Baugröße aus. Außerdem verschmutzen die Rohre leicht, so dass sie gerade untertage
kaum eingesetzt werden können. In der GB 695 010 A (aus 1950) wird ein Entstauber für Trockenbohren beschrieben, wobei dem Entstauber gleich mehrere Bohrgeräte mit Staubabsaugegeräte zugeordnet sind. Von daher ist ein entsprechend großer, untertage kaum einsetzbarer Entstauber erforderlich. Gegenstand der Ansprüche sind Regelventile, ein Notausgang für den Staubzuführungsschlauch und Einrichtungen, um den Druck im Staubzuführungsschlauch zu sichern. Bei der aus 1936 stammenden US 2 094 775 A erfolgt eine Vorabscheidung des gröberen Bohrkleins vor dem eigentlichen Entstauber in einer Art Röhrenabscheider. Das gröbere und das feinere Bohrklein werden von oben in das Rohr eingeführt, wobei das feinere Bohrklein über in der Höhe des Rohres verteilt angeordnete Bohrungen austreten soll, während das gröbere Gut ans untere Ende des Rohres fallen soll, um abgezogen zu werden. Eine klare Trennung ist schon aufgrund der Geschwindigkeit beider Staubbestandteile beim Eintreten in das Rohr nicht möglich. Der Entstauber nach der US 4 521 232 A (aus 1985) ist ähnlich aufgebaut, nur dass der Staub sehr lange gemeinsam geführt und zu ungenau getrennt wird. Auch dieser Stand der Technik ist nicht geeignet, den speziellen Anforderungen des modernen Untertagebergbaus und Tunnelbaus zu genügen. Insbesondere bei größeren und längeren Bohrlöchern ist es nicht möglich das Bohrklein und den Staub sicher aus dem Bohrloch heraus zu saugen und anschließend gleichmäßig und sicher von der Förderluft zu trennen.
From the US 4,284,422 A (from 1981), a vacuum cleaner is known in which, in a the actual filter upstream, a kind of cyclone performing component, the entrained by the dust water and snow is separated from the dust. In this way, adverse caking on the filter surfaces, here covered filter tubes are prevented. The illustrated vacuum generator is a Venturi tube or a Venturi jet pump. This type of pump has a known low efficiency and is characterized by a significantly larger size. In addition, the pipes pollute easily, so they just underground
can hardly be used. In the GB 695 010 A (from 1950) a deduster for dry drilling is described, wherein the dust extractor are associated with several drills with Staubabsaugegeräte. Therefore, a correspondingly large, underground barely usable deduster is required. Subject of the claims are control valves, an emergency exit for the dust supply hose and facilities to secure the pressure in the dust supply hose. At the originating from 1936 US 2 094 775 A Pre-separation of the coarser cuttings takes place before the actual deduster in a kind of tube separator. The coarser and finer cuttings are introduced from above into the tube, with the finer cuttings emerging through holes distributed around the tube, while the coarser cuttings are to fall to the bottom of the tube to be withdrawn. A clear separation is not possible due to the speed of both dust components entering the pipe. The deduster after the US 4 521 232 A (from 1985) has a similar structure, except that the dust is kept together for a very long time and is separated too inaccurately. Also, this prior art is not suitable to meet the special requirements of modern underground mining and tunneling. Especially with larger and longer boreholes, it is not possible to suck the cuttings and the dust safely out of the borehole and then to separate them evenly and safely from the conveying air.

Der Erfindung liegt die Aufgabe zu Grunde, eine das Bohrklein und den Staub annähernd unabhängig von der Menge sicher aus dem Bohrloch abziehende Entstaubungsvorrichtung zu schaffen.The invention is based on the object to provide a cuttings and the dust almost independent of the amount safely deducted from the well dedusting device.

Die Aufgabe wird erfindungsgemäß dadurch gelöst, dass jeder Bohrlafette mit Bohrklein-/Staubabsaugung ein Staubfilter und ein Drehkolbengebläse oder eine Vakuumpumpe, die als bezüglich Volumenstrom stabile Unterdruckerzeuger dienen, zugeordnet ist, dass die Prallwand eine Gummi- oder Kunststoffbeschichtung aufweist und dass die Staubfilter als Flächenfilter mit Kompaktelementen, die von der Reingasseite her ins Filtergehäuse einsetzbar sind, ausgebildet sind.The object is achieved in that each Bohrlafette with Bohrklein- / Staubabsaugung a dust filter and a rotary piston blower or a vacuum pump, which serve as a volume flow stable vacuum generator is assigned, that the baffle has a rubber or plastic coating and that the dust filter as a surface filter With Compact elements that are used by the clean gas side into the filter housing are formed.

Bei einer derart ausgebildeten Vorrichtung ist zunächst einmal vorteilhaft, dass auf einen gesonderten Bohrkleinvorabscheider verzichtet werden kann, weil das gesamte aus dem Bohrloch herausgesaugte Material in ein und demselben Element, nämlich dem Flächenfilter gereinigt wird, sodass diesen Flächenfilter nur Reinluft verlässt, die problemlos in die Atmosphäre abgegeben werden kann. Vorteilhaft ist weiter, dass nun unabhängig vom Anfall von Bohrklein und Staub immer der gleiche Unterdruck am Bohrloch und dem Entstauber zur Verfügung gestellt werden kann, sodass die notwendige Sicherheit da ist, um Bohrklein und Staub aus dem Bohrloch herauszusaugen und zu "entsorgen". Der Flächenfilter selbst ist mit einzeln im Filtergehäuse einsetzbaren stabilen Kompaktelementen ausgerüstet, was den Vorteil hat, dass diese Kompaktelemente weitgehend unempfindlich gegen das ankommende trockene Bohrklein und den Staub sind und dass sie insbesondere so angeordnet werden, dass sehr große Flächen für die Entstaubung zur Verfügung stehen, sodass auch bei großem Anfall von Bohrklein und vor allem Staub ein befriedigender Absaug- und Entstaubungsvorgang immer gewährleistet ist. Bei dieser Flächenfiltereinheit handelt es sich um einen Rückreinigungsfilter. Die staubhaltige Luft wird durch den Saugschlauch dem Flächenfilter zugeführt. Im ersten Schritt strömt das Bohrklein-Staub-Gemisch gegen die Prallwand, welche das grobkörnige Material vom Staub-Luft-Gemisch trennt.In a device designed in this way, it is first of all advantageous that it is possible to dispense with a separate cuttings pre-separator, because the entire material sucked out of the borehole is cleaned in one and the same element, namely the surface filter, so that this surface filter only leaves clean air, which easily enters the cuttings Atmosphere can be delivered. Another advantage is that regardless of the occurrence of cuttings and dust always the same negative pressure at the borehole and the deduster can be provided so that the necessary security is there to suck out cuttings and dust from the well and "dispose". The surface filter itself is equipped with stable compact elements that can be used individually in the filter housing, which has the advantage that these compact elements are largely insensitive to the incoming dry cuttings and the dust and that they are arranged in particular so that very large areas for dedusting are available so that a satisfactory extraction and dedusting process is always guaranteed, even if there is a large amount of cuttings and especially dust. This surface filter unit is a back-cleaning filter. The dusty air is fed through the suction hose to the surface filter. In the first step, the cuttings-dust mixture flows against the baffle, which separates the coarse-grained material from the dust-air mixture.

Die dem Flächenfilter zugeordneten Elemente sind so angeordnet und ausgebildet, dass sie auch den gröberen Bohrkleinkomponenten widerstehen bzw. dafür sorgen, dass diese aus dem Luftstrom heraus separiert werden. Zum Schutz dieser Elemente ist vorgesehen, dass die am Eingangsstutzen und als Bohrkleinseparierer dienende Prallwand aus Metall hergestellt ist. Gegen diese Prallwand wird der ankommende Luft-/Staubstrom bzw. Bohrkleinstrom geleitet, sodass die schwereren Teile eine so große Geschwindigkeitsreduzierung erleiden, dass sie nach unten abfallen und dann getrennt oder in der Regel zusammen mit dem Staub abzuführen sind. Die gröberen Bestandteile des zu reinigenden Luftstroms werden somit für die eigentlichen Filterelemente unschädlich vorher sicher abgeschieden, sodass die Elemente wesentlich höhere Standzeiten erreichen. Durch die Gummi- oder Kunststoffbeschichtung erfolgt der Aufprall des Bohrkleins auf die Prallwand so, dass die Körner nicht zerfallen und Staub freisetzen, sondern als solche erhalten von der Prallwand abrutschen und nach unten fallen. Eine zusätzliche Belastung des nachfolgenden Filters wird somit sicher vermieden. Als nächster Schritt durchströmt das Staub-Luft-Gemisch den Gewebefilter. Hierbei lagert sich der aufgesaugte Staub auf dem Gewebe ab und bildet einen Filterkuchen. Die gefilterte Luft tritt durch das Gewebe in das Innere des Flächenfilters ein und verlässt über den Reinluftkanal das Filtergehäuse. Der bezüglich Volumenstrom stabile Unterdruckerzeuger ist ein Drehkolbengebläse oder eine Vakuumpumpe. Solche Drehkolbengebläse arbeiten ohne innere Verdichtung und ähneln Zahnrad- und Drehschieberpumpen. Bei einem solchen Drehkolbengebläse drehen sich zwei symmetrische Drehkolben gleichmäßig gegeneinander. Das Luftgemisch strömt in das Gebläsegehäuse, das die beiden Kolben umschließt, und wird in den Förderkammern, die durch Drehkolben und Gehäuse gebildet werden, zwangsweise zur Druckseite gefördert. In dem Augenblick, in dem ein Kolbenkopf an der Kante des Voreinlasskanals vorbeistreicht, wird das geförderte Luftvolumen durch Rückströmung aus dem Druckstutzen verdichtet. Der Verdichtungsenddruck stellt sich entsprechend dem Widerstand der Rohrleitung und der nachgeschalteten Apparatur ein. Das hat den Vorteil, dass bei einer Veränderung des Widerstandes in der Saugleitung bis zu einem maximalen Wert die Förderleistung konstant bleibt. Der große Vorteil dieser Drehkolbengebläse ist also, dass sie praktisch auch bei wechselndem Druckverlust gleichbleibend arbeiten.The elements associated with the surface filter are arranged and designed such that they also resist the coarser cuttings components or ensure that they are separated from the airflow. To protect these elements, it is provided that the baffle wall used at the inlet nozzle and as Bohrkleinseparierer is made of metal. Against this baffle, the incoming air / dust stream or cuttings flow is passed, so that the heavier parts suffer such a large reduction in speed that they fall down and then separated or usually be discharged together with the dust. The coarser components of the air stream to be cleaned are thus safely deposited for the actual filter elements harmless before, so that the elements reach much longer service life. Due to the rubber or plastic coating, the impact of the cuttings on the impact wall is such that the grains do not disintegrate and release dust, but as such, slip off the baffle and fall down. An additional burden on the subsequent filter is thus safely avoided. As a next step, the dust-air mixture flows through the fabric filter. In this case, the absorbed dust deposits on the tissue and forms a filter cake. The filtered air enters the interior of the surface filter through the fabric and leaves the filter housing via the clean air duct. The volume flow stable vacuum generator is a rotary piston blower or a vacuum pump. Such positive displacement blowers operate without internal compression and resemble gear and rotary vane pumps. In such a rotary blower, two symmetrical rotary pistons rotate uniformly against each other. The air mixture flows into the fan housing, which encloses the two pistons, and is forcibly conveyed to the delivery side in the delivery chambers, which are formed by rotary pistons and housing. At the moment in which a piston head past the edge of the Voreinlasskanals, the volume of air delivered is compressed by backflow from the discharge nozzle. The discharge pressure adjusts according to the resistance of the pipeline and the downstream equipment. This has the advantage that with a change in the resistance in the suction line up to a maximum value, the capacity remains constant. The big advantage of this rotary blower is that they work practically even with varying pressure loss.

Nach einer zweckmäßigen Ausbildung der Erfindung ist vorgesehen, dass die Unterdruckerzeuger, die Flächenfilter sowie eventuelle Energieerzeuger einem gemeinsamen, mit dem Bohrwagen zu verbindenden Trailer oder direkt als Kompaktbauteil dem Bohrwagen zugeordnet sind. Die Anordnung auf einem eigenen Trailer, der beispielsweise hinter dem Bohrwagen von diesem mitgenommen hin- und hergefahren wird, hat den Vorteil, dass auch relativ groß bauende Elemente problemlos zum Einsatz kommen können, weil dafür die notwendige Standfläche vorhanden ist. Außerdem können so alle für die Entstaubung und die Absaugung notwendigen Bauelemente zusammengefasst untergebracht werden und zwar auch dann, wenn sie als Kompaktbauteil dem Bohrwagen direkt zugeordnet werden, also mit diesem bleibend verbunden sind. Der Trailer kann mit Rädern ausgerüstet sein oder mit Schleppkufen, sodass er die notwendigen Bewegungen mit dem Bohrwagen zusammen problemlos ausführen kann.After an expedient embodiment of the invention, it is provided that the vacuum generator, the surface filter and any energy producers are assigned to a common trailer to be connected to the drilling vehicle or directly as a compact component drilling jumbo. The arrangement on a separate trailer, for example, behind the Bohrwagen of this taken back and forth, has the advantage that even relatively large-sized elements can be used without any problems, because for the necessary footprint is available. In addition, all necessary for dust removal and extraction components can be accommodated in a group and even if they are assigned as a compact component drilling the car directly, so are permanently connected to this. The trailer can be equipped with wheels or with skids, so that he can easily carry out the necessary movements with the drilling carriage.

Bei großen Bohrwagen sitzt der Bohrwagenführer in einem Führerhaus, wobei er gemäß Erfindung von dort aus nicht nur das Bohrgerät oder den Bohrantrieb steuern kann, sondern auch die Unterdruckerzeuger, die erfindungsgemäß jeweils separat fernansteuerbar ausgeführt sind. Es versteht sich, dass gleichzeitig mit den Unterdruckerzeugern auch eventuelle Zubehörelemente der Flächenfilter mit angesteuert werden können.For large drilling rig the Bohrwagenführer sitting in a cab, where he can control according to the invention from there not only the drill or drill drive, but also the vacuum generator, which are inventively each separately remotely controlled. It is understood that at the same time as possible with the vacuum generators and any accessories of the surface filter can be controlled with.

Zusätzliche Energieerzeuger werden benötigt, um die verwendeten Flächenfilter regelmäßig abzureinigen, wobei die Erfindung hierzu vorsieht, dass der oder die Energieerzeuger für das Abreinigen der Flächenfilter als mobile Kompressoren oder einen hydraulischen Antrieb aufweisend ausgeführt sind. Damit können sie in der Regel vom Bohrwagen aus mit versorgt werden, sodass gesonderte Versorgungseinrichtungen nicht benötigt werden. Der Abreinigungsvorgang erfolgt durch einen intermittierenden Druckschock, der entgegen der Ausströmrichtung erfolgt. Die trockenen Staubkuchen werden von den Filterelementen durch das schlagartige Ausdehnen und/oder Vibrieren der Filterelemente gelöst und fallen in die darunter liegende Transportschnecke.Additional power generators are needed to regularly clean the surface filters used, the invention foreseeing this, that the one or more energy producers for the cleaning of the surface filters are designed as mobile compressors or a hydraulic drive comprising. As a rule, they can be supplied from the drilling vehicle so that separate supply facilities are not required. The cleaning process is carried out by an intermittent pressure shock, which takes place counter to the outflow direction. The dry dust cakes are released from the filter elements by the sudden expansion and / or vibration of the filter elements and fall into the underlying transport screw.

Um die aus Metall bestehende Prallwand zu schützen, insbesondere aber den Geräuschpegel niedrig zu halten, sieht die Erfindung vor, dass die Prallwand im Bereich des Eingangsstutzens die Gummi- oder Kunststoffbeschichtung aufweist. Der Geräuschpegel kann so deutlich gesenkt und gleichzeitig das Blech geschützt werden, sodass im Bedarfsfall nur eine Neubeschichtung der Prallwand notwendig wird, wenn diese Beschichtung zu sehr abgetragen oder beschädigt ist. Die Wartungsarbeiten und die Reparaturarbeiten können so wesentlich vereinfacht bzw. auch reduziert werden, wobei man ja sich vorteilhaft auf den Bereich des Bleches bzw. der Prallwand beschränken kann, die wirklich durch die auftreffenden groben Körner in Anspruch genommen wird.In order to protect the baffle made of metal, but in particular to keep the noise level low, the invention provides that the baffle wall in the region of the inlet nozzle has the rubber or plastic coating. The The noise level can be lowered significantly and at the same time the sheet metal can be protected so that, if necessary, only a recoating of the baffle wall becomes necessary if this coating is too worn or damaged. The maintenance work and the repair work can be substantially simplified or even reduced, whereby one can confine itself advantageously to the area of the sheet or the baffle wall, which is actually taken up by the impinging coarse grains.

Sowohl bei der Aufstellung wie auch bei notwendig werdenden Wartungsarbeiten ist es von erheblichem Vorteil, dass die Kompaktelemente des Flächenfilters von der Reingasseite her ins Filtergehäuse einsetzbar sind, wobei erfindungsgemäß vorgesehen ist, dass das Filtergehäuse auf der Reingasseite eine von Hand betätigbare Gehäusetür aufweist. Natürlich bei Stillstand der Vorrichtung bzw. Einrichtung wird so die Gehäusetür von Hand geöffnet, entweder beiseite geschwenkt oder herausgenommen, sodass dann das Innere des Flächenfilters leicht mit den Kompaktelementen zu beschicken bzw. die nötigen Wartungsarbeiten durchzuführen sind.Both in the installation as well as necessary maintenance work, it is of considerable advantage that the compact elements of the surface filter can be inserted from the clean gas side into the filter housing, wherein it is provided according to the invention that the filter housing has on the clean gas side a manually operable housing door. Of course, at standstill of the device or device so the housing door is opened by hand, either swung aside or taken out, so then the interior of the surface filter to feed easily with the compact elements or perform the necessary maintenance.

Bereits erwähnt ist, dass sowohl das Bohrklein wie auch der feinere Staub zweckmäßigerweise aus dem Filtergehäuse gemeinsam ausgetragen werden, was möglich ist, weil das Filtergehäuse am Gehäuseboden mit einem Pendelklappenaustrag ausgerüstet ist. Dadurch wird das Bohrkleinstaubgemisch diskontinuierlich aber gleichmäßig in das Abförderungsaggregat ausgetragen, sodass es über dieses dann abgeführt und schließlich entsorgt werden kann. Der Pendelklappenaustrag sorgt dabei dafür, dass der notwendige Unterdruck im Filtergehäuse selbst praktisch unbeeinflusst oder weitgehend unbeeinflusst bleibt, sodass die nachgeordneten Unterdruckerzeuger nicht Luft über diesen Pendelklappenaustrag ansaugen können.It has already been mentioned that both the cuttings as well as the finer dust are expediently discharged together from the filter housing, which is possible because the filter housing is equipped on the housing bottom with a pendulum flap discharge. As a result, the small cuttings mixture is discharged discontinuously but evenly into the discharge unit, so that it can then be discharged via this and finally disposed of. The pendulum flap discharge ensures that the necessary negative pressure in the filter housing itself remains virtually unaffected or largely unaffected so that the downstream vacuum generators can not suck in air via this pendulum flap outlet.

Das falsche Ansaugen der Luft über den Pendelklappenaustrag wird vor allem dadurch sicher vermieden, dass der Pendelklappenaustrag in einen Rohrschneckenförderer oder auch Kettenkratzförderer übergehend ausgebildet ist, wobei dessen Rohr hochgebogen und endseitig einen mit Zellenradschleuse versehenen Austrag aufweisend ausgebildet ist. Der Rohrschneckenförderer und auch der Kettenkratzförderer laufen in einem geschlossenen Rohr, sodass bis zur Zellenradschleuse das Einströmen von Fremdluft ausgeschlossen werden kann. Über die Zellenradschleuse wird dann das abgeschiedene Gut in einen entsprechenden Transportbehälter abgefüllt, um dann weiter entsorgt zu werden.The wrong suction of the air through the pendulum flap discharge is mainly avoided by the fact that the pendulum flap discharge is formed transiently in a tube screw conveyor or chain scraper conveyor, wherein the tube is bent up and end provided with a rotary valve provided with discharge. The tube screw conveyor and also the chain scraper conveyor run in a closed tube, so that the inflow of external air can be excluded up to the rotary valve. About the rotary valve then the separated material is filled into a corresponding transport container to be disposed of further.

Nach einer zweckmäßigen weiteren Ausführungsform ist vorgesehen, dass dem Austrag der Rohrschnecke mit einer Füllstandsanzeige bzw. -überwachung ausgerüstete Staubsammelsysteme, vorzugsweise Bags zuzuordnen sind. Solche Bags verfügen über ein großes Aufnahmevolumen und bestehen aus Kunststofffäden, die bei einer geringen Elastizität dafür sorgen, dass viel Abraum bzw. Bohrklein und Staub eingefüllt werden kann. Außerdem können dann bei geschlossenen Bags auch hohe Mengen an Feinstaub enthaltende Materialien sicher zum Abraumplatz transportiert werden.According to an expedient further embodiment, it is provided that the discharge of the pipe screw with a level indicator or monitoring equipped dust collection systems, preferably bags are assigned. Such bags have a large receiving volume and consist of plastic threads, which ensure with little elasticity that a lot of overburden or cuttings and dust can be filled. In addition, then with closed bags and high amounts of particulate matter containing materials can be safely transported to the overburden.

Bei im untertägigen Berg- und Tunnelbau eingesetzten Anlagen bzw. Vorrichtungen ist es zweckmäßig, dass die Elemente des Flächenfilters als der europäischen Kunststoff-Prüfrichtlinie genügend schwerentflammbar und/oder antistatisch ausgerüstete Stahlkörper-Filterelemente ausgebildet sind. Damit können solche erfindungsgemäßen Vorrichtungen auch in Gefahrenbereichen eingesetzt werden, ohne dass eine Umrüstung erforderlich wird.In systems or devices used in underground mining and tunneling, it is expedient that the elements of the surface filter as the European Plastics Test Directive are sufficiently flame retardant and / or antistatic steel body filter elements are formed. In order for such devices of the invention can also be used in hazardous areas, without a conversion is required.

Weiter vorne ist darauf hingewiesen worden, dass es vorteilhaft ist, auf ein gesondertes Abfiltern des Bohrkleins verzichten zu können. Bei großem Bohrkleinanfall ist es aber erfindungsgemäß möglich, dem kompakten Flächenfilter einen außerhalb des Filtergehäuses angeordneten, als Bohrkleinseparierer geeigneten Zyklon vorzuordnen, wobei der Zyklon einen Zuführungsstutzen und einen Umgehungsstutzen aufweist und wobei der Saugschlauch mit einem Ende auf den Zuführungsstutzen am Zyklon und mit dem anderen Ende auf den Innenkanal der Bohrstangen aufsetzbar ist und wobei der Saugschlauch eine Länge von bis zu 50 m aufweist. Damit lassen sich vor allem problematische Spitzenwerte problemlos überwinden. Je nach Größenordnung des Bohrkleinanfalls wird der Saugschlauch auf den Umgehungsstutzen oder den Zuführungsstutzen aufgesetzt. Über den langen Saugschlauch kann die erfindungsgemäße Vorrichtung in einem optimalen Abstand zur Ortsbrust angeordnet werden.Earlier it has been pointed out that it is advantageous to be able to dispense with a separate filtering the cuttings can. In the case of large amounts of cuttings, it is possible according to the invention to pre-arrange a compact filter outside the filter housing, suitable as Bohrkleinseparierer suitable cyclone, wherein the cyclone has a feed nozzle and a bypass pipe and wherein the suction hose with one end to the feed port on the cyclone and the other end can be placed on the inner channel of the drill rods and wherein the suction hose has a length of up to 50 m. This can be above all easily overcome problematic peak values. Depending on the size of the Bohrkleinanfalls the suction hose is placed on the bypass port or the supply nozzle. Over the long suction hose, the device according to the invention can be arranged at an optimum distance from the working face.

Die Erfindung zeichnet sich insbesondere dadurch aus, dass eine Vorrichtung zum Absaugen und Filtern beim Trockenbohren geschaffen ist, die unabhängig vom wechselnden Druckverlust immer einen stabilen Volumenstrom zur Verfügung stellt, sodass ein gleichmäßiges Bohren möglich ist. Das anfallende Bohrklein und der Staub werden sicher aus dem Bohrloch heraus transportiert und in der Vorrichtung dann so weiter verarbeitet bzw. Luft und Staub werden voneinander getrennt, sodass die Reinluft dann anschließend aus der Vorrichtung austreten kann, die keinerlei Belastung für die der Umwelt darstellt. Dadurch, dass ein Zyklon nur noch bei Extremfällen eingesetzt wird, ist ein Unsicherheitsfaktor ausgeschaltet, ohne dass der Grobstaubanteil bzw. besser der Bohrkleinanteil der Luft im Flächenfilter ein Problem darstellt. Dieser ist nämlich so ausgebildet, dass die eigentlichen Elemente bzw. Flächenfilterteile vor diesen gröberen Anteilen geschützt sind. Vorteilhafterweise werden alle Vorrichtungsteile oder -elemente zu einer Kompakteinheit zusammengefügt, die entweder dem Bohrwagen selbst oder aber einem gesonderten Trailer zugeordnet sind, der dem Bohrwagen folgt und über eigene Rollelemente oder Gleitschienen verfügt. Gerade für den rauen Betrieb im Bergbau bzw. Tunnelbau, vor allem aber auch beim Großlochbohren stellt diese Absaugvorrichtung die jeder einzelnen Bohrlafette als Einheit zugeordnet ist keine Behinderung mehr für die Bohrarbeit dar, sodass bei größeren Wartungsabständen optimale
Bohrleistungen erreicht werden können.
The invention is particularly characterized by the fact that a device for suction and filtering is created during dry drilling, which always provides a stable volume flow independent of the changing pressure loss, so that a uniform drilling is possible. The resulting cuttings and the dust are safely transported out of the well and then further processed in the device or air and dust are separated, so that the clean air can then escape from the device, which is not a burden on the environment. The fact that a cyclone is only used in extreme cases, an uncertainty factor is switched off, without the coarse dust content or better the Bohrkleinanteil the air in the surface filter is a problem. This is namely designed so that the actual elements or surface filter parts are protected from these coarser portions. Advantageously, all device parts or elements are assembled into a compact unit, which are assigned either to the Bohrwagen itself or a separate trailer, which follows the drill and has its own rolling elements or slides. Especially for the rough operation in mining or tunneling, but especially in the large-bore drilling this suction device which is assigned to each drill mount as a unit is no longer hindering the drilling work, so optimal for larger maintenance intervals
Drilling can be achieved.

Weitere Einzelheiten und Vorteile des Erfindungsgegenstandes ergeben sich aus der nachfolgenden Beschreibung der zugehörigen Zeichnung, in der ein bevorzugtes Ausführungsbeispiel mit den dazu notwendigen Einzelheiten und Einzelteilen dargestellt ist. Es zeigen:

Figur 1
eine vergrößerte Ansicht der die Niederschlagung des Bohrkleins und Staubes bewirkenden Teilvorrichtung,
Figur 2
eine Seitenansicht der gesamten Absaugvorrichtung,
Figur 3
eine Draufsicht auf diese Absaugvorrichtung und
Figuren 4-6
eine Absaugvorrichtung mit Sammelcontainer und Zyklon.
Further details and advantages of the subject invention will become apparent from the following description of the accompanying drawings in which a preferred embodiment with the necessary details and individual parts is shown. Show it:
FIG. 1
an enlarged view of the crushing of the cuttings and dust causing sub-device,
FIG. 2
a side view of the entire suction device,
FIG. 3
a plan view of this suction device and
Figures 4-6
a suction device with collecting container and cyclone.

In Figur 1 ist von der Absaugvorrichtung 1 im Wesentlichen der Bohrkleinseparierer 2' und Staubfilter 2 wiedergegeben. Der Unterdruckerzeuger 3 ist nur zum Teil zu sehen und zwar, weil es sich um eine Seitenansicht handelt, kann man hier im Wesentlichen nur den Reinlufteinlass 35 und den Reinluftauslass 36 dieser Unterdruckerzeuger 3 sehen. Das Bezugszeichen 10 verdeutlicht, dass hier der Unterdruckerzeuger 3 in der Ausbildung als Drehkolbengebläse 10 wiedergegeben ist. Der Bohrkleinseparierer 2' und Staubfilter 2 ist ein Flächenfilter 4, in dessen Filtergehäuse 17 mehrere Elemente 5, 6 untergebracht sind. Dieser Flächenfilter 4, 4', 4" ist wie in Figur 2 und 3 gezeigt mit einem Energieerzeuger 7 bzw. mehreren Energieerzeugern 7, 7' einem Trailer 8 zugeordnet, der hier auf dem Liegenden bzw. auf dem Boden vom nicht dargestellten Bohrwagen mitgezogen werden kann. Aus Figur 3 sind dann auch die weiteren Drehkolbengebläse 11 und 12 zu ersehen.In FIG. 1 is shown by the suction device 1 substantially the Bohrkleinseparierer 2 'and dust filter 2. The vacuum generator 3 can only partially be seen, and indeed, because it is a side view, essentially only the clean air inlet 35 and the clean air outlet 36 of this vacuum generator 3 can be seen here. The reference numeral 10 illustrates that here the vacuum generator 3 is shown in the training as a rotary blower 10. The Bohrkleinseparierer 2 'and dust filter 2 is a surface filter 4, in the filter housing 17 a plurality of elements 5, 6 are housed. This surface filter 4, 4 ', 4 "is as in FIGS. 2 and 3 shown with a power generator 7 and a plurality of power generators 7, 7 'associated with a trailer 8, which can be pulled here on the footwall or on the ground by drilling jog, not shown. Out FIG. 3 are then also the other rotary blower 11 and 12 can be seen.

Der eigentliche Flächenfilter 4 ist hier einem Zwischentrailer 14 zugeordnet, der auf dem Trailer 8 festgelegt ist. Es kann sich dabei auch um Laufschienen 38, 39 handeln, wie Figur 3 nahe legt.The actual area filter 4 is here associated with an intermediate trailer 14, which is fixed on the trailer 8. It may also be rails 38, 39, such as FIG. 3 suggests.

Das Luft-Staub-Bohrkleingemisch wird über den Saugschlauch 16 und den Eingangsstutzen 15 in das Innere des Filtergehäuses 17 geleitet. Erkennbar ist in Figur 1, dass gegenüber diesem Eingangsstutzen 15 eine Prallwand 18 angeordnet ist, die aus Blech besteht und die genau im Eingangsbereich eine Gummi- oder Kunststoffbeschichtung 19 aufweist. Insbesondere die gröberen Bestandteile des Luft-Staub-Gemisches werden mit entsprechender Geschwindigkeit auf diese Gummi- oder Kunststoffbeschichtung 19 aufprallen und dann nach unten in Richtung Gehäuseboden 25 fallen, während das Luft-Feinstaub-Gemisch zwischen den Elementen 5, 6, hier in Form von Starrkörperfilterelementen 22, 23 in diese eindringt wobei der Staub außen auf den Filterflächen verbleibt, während das gesäuberte Gas bzw. die Luft in Richtung Reingasseite 20 des Filtergehäuses 17 strömt und dann über den Ausgangsstutzen 24 abgeführt wird.The air-dust-Bohrkleingemisch is passed via the suction hose 16 and the inlet nozzle 15 into the interior of the filter housing 17. Is recognizable in FIG. 1 in that a baffle wall 18, which consists of sheet metal and which has a rubber or plastic coating 19 in the entrance area, is arranged opposite this inlet connection 15. In particular, the coarser constituents of the air-dust mixture will impact on this rubber or plastic coating 19 with appropriate speed and then fall down towards the housing bottom 25, while the air-particulate mixture between the elements 5, 6, here in the form of rigid body filter elements 22, 23 penetrates into the dust while the outside remains on the filter surfaces, while the cleaned gas or the Air in the direction of the clean gas side 20 of the filter housing 17 flows and is then discharged via the outlet port 24.

Auf der Reingasseite 20 des Filtergehäuses 17 ist eine Gehäusetür 21 angebracht, die über einen Türgriff 37 geöffnet werden kann, sodass dann die Starrkörperfilterelemente 22, 23 leicht demontiert bzw. montiert werden können, sodass der Einbau vorteilhafterweise immer von der Reinluftseite oder Reingasseite 20 her vorgenommen werden kann. Der gröbere Staub aber auch der feine Staub und das Bohrklein fallen wie beschrieben in Richtung Gehäuseboden 25, wo über den Pendelklappenaustrag 26 dieses Gemisch dann in den Rohrschneckenförderer 27 gelangt. Dieser Rohrschneckenförderer 27 verfügt über eine Rohrschnecke 28, die sich im geschlossenen Rohr 29 dreht und dafür sorgt, dass das Staubgemisch in Richtung Austrag 30 gefördert wird. Dort sorgt einen Zellenradschleuse 31 dafür, dass das Gemisch, ohne dass Luft angesaugt werden kann in die darunter angeordneten Bags 32, 33 fällt. Diese Bags 32, 33 liegen auf Paletten 34 auf und sind mit diesen Paletten 34 zusammen gut transportabel. Sie können allerdings auch alleine transportiert werden, wozu sie mit entsprechenden Schlaufen ausgerüstet sein können.On the clean gas side 20 of the filter housing 17, a housing door 21 is attached, which can be opened via a door handle 37 so that then the rigid body filter elements 22, 23 can be easily disassembled or mounted, so that the installation is advantageously carried out always from the clean air side or clean gas side 20 ago can be. The coarser dust but also the fine dust and cuttings fall as described in the direction of the housing bottom 25, where this mixture then passes through the pendulum flap discharge 26 in the tube screw conveyor 27. This tube screw conveyor 27 has a tube screw 28 which rotates in the closed tube 29 and ensures that the dust mixture is conveyed in the direction of discharge 30. There, a rotary valve 31 ensures that the mixture, without air can be sucked into the bags arranged below 32, 33 falls. These bags 32, 33 rest on pallets 34 and are well transportable together with these pallets 34. However, they can also be transported alone, for which they can be equipped with appropriate loops.

Weiter vorne ist bereits gesagt worden, dass die Figuren 2 und 3 verdeutlichen, dass das das Filtergehäuse 17 verlassende Reingas bzw. die Reinluft über den Ausgangsstutzen 24 und einen hier nicht dargestellten Schlauch zu dem Reinlufteinlass 35 des bzw. der Drehkolbengebläse 10 bzw. 11 bzw. 12 geführt wird, um dort dem Unterdruckerzeugungsprozess unterworfen zu werden. Trotz eventuell wechselnder Druckverluste bleibt der Volumenstrom dabei stabil, sodass sich diese Art der Unterdruckerzeugung besonders für den hier vorgesehenen Zweck unter Tage eignet. Die Absaugleistung kann so auf mindestens 50% höher als die Spülluftmenge gebracht werden, sodass eine vollständige Stauberfassung immer gesichert ist. Da die Abscheidefähigkeit der Filter sehr hoch ist, verlässt atembare Luft die Flächenfilter 4 bzw. die Unterdruckerzeuger 3.Earlier it has already been said that the FIGS. 2 and 3 clarify that the clean gas leaving the filter housing 17 or the clean air via the outlet port 24 and a hose not shown here to the clean air inlet 35 of the rotary blower 10 or 11 and 12 is guided to be subjected there to the vacuum generating process. Despite possibly changing pressure losses, the volume flow remains stable, so that this type of vacuum generation is particularly suitable for the below-mentioned purpose underground. The suction power can be brought to at least 50% higher than the purging air, so that a complete dust detection is always ensured. Since the Abscheidefähigkeit the filter is very high, breathable air leaves the surface filter 4 and the vacuum generator. 3

Wie erwähnt zeigt Figur 2 eine Seitenansicht, wobei insbesondere auch die Reinlufteinlässe 35 bzw. Reinluftauslässe 36 gezeigt sind, und zwar alle hier zum Einsatz kommenden Drehkolbengebläse 10, 11, 12. Dass es sich um drei Einheiten auch bezüglich der Flächenfilter 4 handelt, verdeutlicht Figur 3, wobei hier diese Flächenfilter mit den Bezugszeichen 4, 4' und 4" versehen sind. In der Regel sind diese einzelnen Flächenfilter 4, 4', 4" auf den Zwischentrailern 14 fixiert, wobei diese Zwischentrailer 14 aber auch als Laufschienen 38, 39 ausgebildet sein können bzw. benutzt werden können.As mentioned shows FIG. 2 a side view, in particular, the clean air inlets 35 and clean air outlets 36 are shown, and indeed all coming here for use rotary lobe blower 10, 11, 12. That it is three units also with respect to the surface filter 4, illustrates FIG. 3 In this case, these surface filters are provided with the reference symbols 4, 4 'and 4 ". As a rule, these individual surface filters 4, 4', 4" are fixed on the intermediate trailers 14, but these intermediate trailers 14 are also designed as running rails 38, 39 can be or can be used.

Die Figuren 4-6 zeigen eine Ausführung bei der zur Unterstützung des Bohrkleinseparierers 2' und des Staubfilters 2 dem Filtergehäuse 17 außen ein Zyklon 50 zugeordnet und damit den Elementen 5, 6 im Filtergehäuse 17 vorgeordnet ist. Dieser Zyklon 50 kann so geschaltet werden, dass er eine gewisse gröbere Kornklasse des Bohrkleins abtrennt, sodass die nachfolgende Prallwand 18 vor diesen gröberen Bohrkleinbrocken geschützt bleibt. Er kann aber auch so eingestellt werden, dass er eine gewisse Menge des Bohrkleins abtrennt, um so den nachfolgenden Bohrkleinseparierer 2' im Filtergehäuse 17 zu entlasten. Weiter besteht die Möglichkeit, den Zyklon 50 aus dem Zustrom herauszunehmen, wozu der Saugschlauch 16 vom Zuführungsstutzen 51 abgestreift und auf den Umgehungsstutzen 52 aufgesetzt wird. Die staubhaltige Luft wird dann unter Umgehung des Zyklons 50 direkt ins Filtergehäuse 17 hineingeleitet.The Figures 4-6 show an embodiment in which to support the Bohrkleinseparierers 2 'and the dust filter 2 the filter housing 17 outside a cyclone 50 assigned and thus upstream of the elements 5, 6 in the filter housing 17. This cyclone 50 can be switched so that it separates a certain coarser grain class of cuttings, so that the subsequent baffle 18 is protected from these coarser pieces of cuttings. But it can also be adjusted so that it separates a certain amount of cuttings, so as to relieve the subsequent Bohrkleinseparierer 2 'in the filter housing 17. It is also possible to remove the cyclone 50 from the influx, for which the suction hose 16 is stripped from the feed nozzle 51 and placed on the bypass pipe 52. The dust-laden air is then led in bypassing the cyclone 50 directly into the filter housing 17.

Zu Figur 1 ist das Ende 53 des Saugschlauches 16 gezeigt, das an einem der Eingangsstutzen 15, 51, 52 angeschlossen ist. An den Ausgangsstutzen 24 am anderen Ende des Filtergehäuses 17 ist der Verbindungsschlauch 54 angeschlossen, der in Figur 4 gestrichelt wiedergegeben ist und Filtergehäuse 17 und Unterdruckerzeuger 3 bzw. Druckkolbengebläse 10, 11, 12 miteinander verbindet.To FIG. 1 the end 53 of the suction hose 16 is shown connected to one of the inlet ports 15, 51, 52. At the outlet port 24 at the other end of the filter housing 17 of the connecting hose 54 is connected, which in FIG. 4 is shown in dashed lines and filter housing 17 and vacuum generator 3 and plunger blower 10, 11, 12 interconnected.

Statt eines Bags 32, 33, ist bei den Figuren 4 und 5 unter der Zellenradschleuse 31 ein Staubcontainer 55 angeordnet, der mit einem Füllstandsanzeiger 57 ausgerüstet ist. Das Filtergehäuse 17 verfügt am oberen Rand 58 über mehrere Aufhängeösen 56, um so das gesamte Bauteil leichter transportieren zu können.Instead of a bag 32, 33, is at the FIGS. 4 and 5 arranged under the rotary valve 31, a dust container 55, which is equipped with a level indicator 57. The filter housing 17 has at the upper edge 58 via a plurality of suspension eyelets 56 so as to be able to transport the entire component easier.

Claims (10)

  1. Device for dry drilling with cuttings flushing and dust extraction, for use in underground mining with a drill with one or more drill rigs to which a vacuum extractor located at the mouth of the borehole and a suction hose (16) for transporting the loosened material to the filter housing (17) of a dust filter (2) and to a vacuum generator (3) are assigned to flush out the cuttings and the dust through the gap between drill rod and borehole wall, whereby a baffle (18) serving as a cuttings separator (2') is assigned to the inlet nozzle (15) of the filter housing (17) and whereby the dust filter (2) is designed to deposit not only the dust but also the cuttings from the volume flow,
    characterised in that
    a dust filter (2) and a rotary piston blower (10, 11, 12) or a vacuum pump, which serve as a stable vacuum generator (3) with regard to the volume flow, are assigned to each drill rig with cuttings and dust extraction, the deflecting wall (18) has a rubber to plastic coating (19) in the area of the inlet nozzle and the dust filters (2) are designed as surface filters (4, 4', 4") with compact elements (5, 6) that are insertable into the filter housing (17) from the pure gas side (20).
  2. Device in accordance with claim 1,
    characterised in that
    the vacuum generator (3), the surface filters (4) and any power generators (7) are allocated to a common trailer (8) to be connected to the drilling truck or directly to the drilling truck as a compact component.
  3. Device in accordance with claim 2,
    characterised in that
    the vacuum generators (3) are each designed to be separately remotely controllable.
  4. Device in accordance with claim 2,
    characterised in that
    the power generator or power generators (7) for cleaning the surface filters (4) are designed as mobile compressors or having a hydraulic drive.
  5. Device in accordance with claim 1,
    characterised in that
    the filter housing (17) on the pure gas side (20) has a manually operable housing door (21).
  6. Device in accordance with claim 1,
    characterised in that
    the filter housing (17) on the housing floor (25) is equipped with a pendulum flap discharge (26).
  7. Device in accordance with claim 6,
    characterised in that
    the pendulum flap discharge (26) is designed passing into a tube screw conveyor (27), whereby the conveyor's tube (29) is bent upwards and designed having a discharge (30) at the end with a rotary valve (31).
  8. Device in accordance with claim 7,
    characterised in that
    dust collection systems, preferably bags (32,33) fitted with a level indicator or monitor (57) are to be assigned to the discharge (30) of the tube screw conveyor (28).
  9. Device in accordance with claim 1,
    characterised in that
    the compact elements (5, 6) of the surface filter (4) are designed as flame retardant and/or antistatically treated rigid body filter elements (22, 23) on conformity with European plastic test guidelines.
  10. Device in accordance with claim 1,
    characterised in that
    with large amounts of cuttings a suitable cyclone (50) is to be assigned to the surface filter (4) outside the filter housing (17) as cutting separator (2'), whereby the cyclone (50) has a feeder nozzle (51) and a bypass nozzle (52) and whereby the suction hose (16) can be placed with one end (53) on the feeder nozzle (51) at the cyclone (50) and with the other end on the inner channel of the drill rods and whereby the suction hose (16) has a length of up to 50 m.
EP13708656.7A 2012-02-18 2013-02-06 Device for dry drilling using drilling debris suction Active EP2815062B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102012003128 2012-02-18
DE102013000512A DE102013000512A1 (en) 2012-02-18 2013-01-15 Apparatus for dry drilling with cuttings extraction
PCT/DE2013/000065 WO2013120475A2 (en) 2012-02-18 2013-02-06 Device for dry drilling using drilling debris extraction

Publications (2)

Publication Number Publication Date
EP2815062A2 EP2815062A2 (en) 2014-12-24
EP2815062B1 true EP2815062B1 (en) 2019-02-06

Family

ID=48915286

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13708656.7A Active EP2815062B1 (en) 2012-02-18 2013-02-06 Device for dry drilling using drilling debris suction

Country Status (3)

Country Link
EP (1) EP2815062B1 (en)
DE (1) DE102013000512A1 (en)
WO (1) WO2013120475A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10486920B2 (en) 2016-09-12 2019-11-26 Vermeer Manufacturing Company Transfer systems for receiving and conveying material
CN108561077A (en) * 2018-01-25 2018-09-21 中国矿业大学 Mine jumbo and its dust removal integrated plant of drilling
CN109854165A (en) * 2019-03-28 2019-06-07 邳州远通公路工程有限公司 A kind of spontaneous circuit face drilling vehicle
CN113250634A (en) * 2021-06-28 2021-08-13 数皮科技(湖北)有限公司 Method and device for processing drilling debris through sieving, cleaning, drying and weighing

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3909058A1 (en) * 1989-03-18 1990-09-20 Deilmann Haniel Gmbh Dry-drilling extraction system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2094775A (en) * 1935-03-04 1937-10-05 Pyrene Mfg Co Dust filter
DE967222C (en) * 1949-03-20 1957-10-24 Hemscheidt Maschf Hermann Dust extractor
GB695010A (en) * 1950-06-19 1953-07-29 Holman Brothers Ltd Improvements in and relating to rock drilling apparatus
SU589384A1 (en) * 1975-12-15 1978-01-25 Центральный Научно-Исследовательский И Проектно-Конструкторский Институт Профилактики Пневмокониозов И Техники Безопасности Цниипп Self-propelled drilling rig
CA1070667A (en) * 1979-06-12 1980-01-29 Omer Ferland Industrial vacuum cleaner
US4434861A (en) * 1981-01-07 1984-03-06 Howeth David Franklin Dust conveying and collecting system and method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3909058A1 (en) * 1989-03-18 1990-09-20 Deilmann Haniel Gmbh Dry-drilling extraction system

Also Published As

Publication number Publication date
WO2013120475A2 (en) 2013-08-22
DE102013000512A1 (en) 2013-08-22
EP2815062A2 (en) 2014-12-24
WO2013120475A3 (en) 2014-08-28

Similar Documents

Publication Publication Date Title
DE3133229C2 (en)
DE19853190B4 (en) Rotary scrubber with inclined demister
EP0368129B1 (en) Suction dredger
EP2815062B1 (en) Device for dry drilling using drilling debris suction
EP3087298B1 (en) Method and device for trenchless pipe laying
DE9212047U1 (en) Device for fractional disposal of a sweeper
DE2133354A1 (en) Support frame for a mining machine
DE3239756C2 (en) Method and apparatus for removing deposits from channels
DE19851128A1 (en) Pneumatic conveying system, for dust taken up from roads or large surfaces, has dust delivered across pressure or suction air unit in power sweeper with filtering of fine and coarse dust
DE4213987C2 (en) Conveying device for a shield tunneling machine for drilling tunnel sections
DE4431063A1 (en) Mobile underground suction conveyor equipment
DE925777C (en) Process for the automatic removal of road dirt and road cleaning vehicles
DE2728124C3 (en) Device for separating dust-like parts from an air stream
EP3597828B1 (en) Road milling machine
DE202005006671U1 (en) Suction excavator has telescopic device which is connected with container and chassis with which tilting axle is moved beyond rear end of chassis
DE3108713A1 (en) DEVICE FOR PNEUMATICALLY OR HYDRAULIC LIFTING AND CONVEYING OF PRODUCTS
DE3909058C2 (en) Dry drilling suction system
DE10303626B4 (en) Tunneling dust filter with pre-separator
DE29923449U1 (en) Suction dredger
EP3832021B1 (en) Soil treatment machine with dust extraction with optional filtering of the suction dust-polled air
DE552503C (en) Device for the removal and immediate recovery of dust in mines
DE2934242C2 (en) Dust extraction device on a rotary blower displacement machine
DE2629788B2 (en) Device for dust extraction in underground mining operations using the hollow profiles of the support frames as extraction lines
DE8709504U1 (en) Road milling machine for milling road surfaces
DE20205421U1 (en) Saugbagger

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20140819

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

R17P Request for examination filed (corrected)

Effective date: 20150302

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20180328

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20180927

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 1095025

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190215

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502013012145

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20190206

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190506

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190606

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190506

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190606

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190507

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190206

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502013012145

Country of ref document: DE

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20190228

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190228

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190228

26N No opposition filed

Effective date: 20191107

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20190506

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190206

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190228

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190406

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1095025

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190206

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190206

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190506

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20130206

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190206

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20231215

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20240226

Year of fee payment: 12