WO2002095145A1 - Dispositif conçu pour enlever et preparer des couches de revetement, de la terre ou du fond de roche - Google Patents

Dispositif conçu pour enlever et preparer des couches de revetement, de la terre ou du fond de roche Download PDF

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Publication number
WO2002095145A1
WO2002095145A1 PCT/DE2002/001870 DE0201870W WO02095145A1 WO 2002095145 A1 WO2002095145 A1 WO 2002095145A1 DE 0201870 W DE0201870 W DE 0201870W WO 02095145 A1 WO02095145 A1 WO 02095145A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
storage
conveyor
working
buffer
Prior art date
Application number
PCT/DE2002/001870
Other languages
German (de)
English (en)
Inventor
Jürgen Schenk
Original Assignee
Schenk Juergen
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 Schenk Juergen filed Critical Schenk Juergen
Priority to DE10292221T priority Critical patent/DE10292221D2/de
Publication of WO2002095145A1 publication Critical patent/WO2002095145A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/08—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with digging wheels turning round an axis
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C21/00—Apparatus or processes for surface soil stabilisation for road building or like purposes, e.g. mixing local aggregate with binder
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • E02F3/962—Mounting of implements directly on tools already attached to the machine
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/12—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with equipment for back-filling trenches or ditches
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/30—Auxiliary apparatus, e.g. for thawing, cracking, blowing-up, or other preparatory treatment of the soil
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C2301/00—Machine characteristics, parts or accessories not otherwise provided for
    • E01C2301/50—Methods or devices for preventing dust by spraying or sucking

Definitions

  • the invention relates to a device with the features of the preamble of patent claim 1.
  • an excavator is known from DE 197 27 549 C2, on the bucket of which a milling device is provided.
  • a storage container is provided on the bucket, which can hold a liquid or powdered binder. Nozzles or a cellular wheel sluice then serve to deliver the binding agent into the area of the milling machine.
  • the storage space is dimensioned such that powdered binder for at least one trench section can be accommodated therein. If the trench section has been worked on, the reservoir must be refilled, for example by moving to a silo and refilling the reservoir from the silo. This means work breaks.
  • a device for refurbishing roads which has a milling machine for milling the road surface.
  • a water spray device is provided near the milling machine.
  • a storage container for cement is provided on the device, which deposits a cement layer on the not yet milled road surface via a cellular wheel sluice.
  • the storage container is connected to a truck via a hose line. If necessary, the cement supply is replenished via the hose line. This means an interruption of work. It is an object of the invention to provide a device for loosening, excavating and processing surface layers, soil or rocky subsoil, with which work that is as uninterrupted as possible is possible.
  • the device according to the invention has a working device, for example in the form of a milling cutter and / or a shovel, which is carried by a boom.
  • the boom is, for example, the arm of an excavator that carries the bucket and / or the milling machine.
  • the implement (the excavator) is provided with a supply of additive that is to be mixed with the material to be excavated.
  • the additive can be, for example, lime, cement, a fiber mixture, another powdery or granular substance or a liquid.
  • a storage device is provided which has such a volume that a longer, undisturbed, uninterrupted operation of the device is possible.
  • the storage volume of the storage device required for this is, for the most part, applied by a storage container which is carried by the implement but not by the boom.
  • the storage container is thus arranged at rest on the working device and therefore does not have to be moved when the boom is moved.
  • a conveyor is provided to convey additive from the storage container into the buffer container. It can be provided that the conveyor conveys as often as possible, for example whenever this is possible due to the existing working conditions.
  • the volume of the buffer container can then be dimensioned so small that it is just sufficient to bridge the breaks in operation of the conveyor. Pauses in operation of the conveyor can result, for example, if the buffer container is raised above the level of the storage container or another level, or if the buffer container is no longer held vertically but in a strongly inclined position.
  • the storage volume of the storage container is preferably dimensioned so large that it is sufficient to carry out an entire working shift (for example 8 hours). This makes it self-sufficient of the implement without having to start up a silo container as well as without refilling from a delivery truck.
  • the arrangement of the storage volume on the implement enables very large stocks to be attached which do not transmit any forces to the boom. Several tons of additive can be stored.
  • the buffer container contains only a small amount, for example only twenty or fifty kilograms.
  • a fill level monitoring device is preferably provided on the buffer tank and is connected to a control device for controlling the conveying device. This enables the conveyor to be switched off as soon as the buffer volume is sufficiently full. On the other hand, the buffer volume also allows the application of quantities of additives that temporarily exceed the conveying capacity of the conveyor.
  • the control device preferably monitors not only the fill level of the buffer volume in order to replenish it if necessary, but at the same time conditions and situations which can prevent the refilling of the buffer volume. For example, it can be expedient to block the operation of the conveying device if the working device and thus the buffer container are held in a particularly high or particularly low position or in a strongly inclined position.
  • the buffer container has a further function, which arises when the metering device has a relatively wide outlet - for example via the entire width of an excavator bucket or a milling device.
  • the buffer container serves to distribute the material that is brought in from the storage container, for example via a pipeline or a hose line, over the width of the metering device. This enables a thorough and uniform mixing of the excavation with the additive from the outset without too much mixing effort.
  • the conveyor is formed, for example, by a flexible screw conveyor.
  • a fluid delivery device is provided, in which the e.g. powdery additive is conveyed airborne. This can be done both in the context of a vacuum conveyor and in the context of a compressed air conveyor.
  • Vacuum conveyors are preferred because of the vacuum that builds up in the system. The risk of dust escaping is then particularly low.
  • the conveying system preferably includes a separating device which cleans air which has been led out of the buffer container, so that excessive dust escape is avoided.
  • FIG. 1 shows an implement with an additive storage system
  • FIG. 2 shows a buffer container of the implement according to FIG. 1,
  • FIG. 3 shows the buffer container according to FIG. 2 in a schematic sectional illustration
  • FIG. 4 shows a modified embodiment of the buffer container
  • Figure 5 is a schematic representation of the
  • FIG. 6 shows a schematic illustration of the storage system with a flexible screw conveyor
  • Figure 7 is a schematic representation of a modified storage system with flexible screw conveyor and without buffer and
  • Figure 8 shows the storage system with pressure conveyor.
  • an excavator 1 which has a chassis 2, a body 3 and a boom 4.
  • an excavator shovel 5 is held, which carries a milling cutter 6 on its rear or underside.
  • the movements of the boom 4, the excavator shovel 5 and the milling cutter 6 are controlled or caused by a hydraulic system 7, which is only indicated schematically.
  • An output 8 of a metering device 9 is provided on the excavator shovel 5, which serves to convey additive out of a buffer container 10 into the area of the milling cutter 6.
  • the metering device 9 is, for example, a cellular wheel sluice, which can be driven by a hydraulic motor 11 (for example FIG. 2 or 4).
  • the outlet 8 can be slit-shaped and extend over the entire width of the milling cutter 6, ie the width of the milling cutter 6 corresponds to the width of the outlet 8.
  • the buffer container 10 is designed to be relatively small and has a storage volume which is sufficient to maintain operation for a few minutes.
  • the buffer container 10 is connected via a conveying device 12 to a storage container 13, which is attached to the structure 3, for constant or periodic or as required refilling.
  • the buffer container 10, the conveying device 12 and the storage container 13 together form a storage device 14, the storage capacity of which allows the operation of the excavator 1 over an entire working shift.
  • the conveying device 12 is designed, for example, as a vacuum conveying device and for this purpose has a conveying line 15 and a suction line 16.
  • the conveyor line 15 leads from the storage container 13 to the buffer container 10 and is laid along the boom 4. It is flexible at its joints.
  • the suction line 16 leads from the buffer container 10 to a suction unit 17 (suction fan). From this it arrives from the buffer container 10 extracted air directly or via a filter device to the outside.
  • the bottom 6 should first be milled with the milling machine 6, at the same time using additive, e.g. Lime, cement, ash, stone powder, fibers or the like or a liquid additive should be incorporated.
  • additive e.g. Lime, cement, ash, stone powder, fibers or the like or a liquid additive should be incorporated.
  • the additive in question is located in the storage container 13.
  • the suction unit 17 now sucks air out of the buffer container 10 via the suction line 16 and is hermetically sealed from the outside.
  • air flows from the storage container 13 via the delivery line 15 and takes the relevant powdery additive with it.
  • FIGS. 2 and 3 it reaches the interior of the buffer container 10.
  • the interior has a substantially larger cross section than the delivery line 15, as a result of which the flow velocity of the inflowing air decreases sharply here.
  • the powdery material 19 in question is deposited in the buffer container 10.
  • the air initially arrives at a low speed into a collecting space 23, from which it is sucked off again at a higher speed via the suction line 16.
  • FIG. 4 illustrates a development of the invention.
  • a separating device 24 is provided above the buffer container 10 and serves to separate the air-borne powdery additive from the carrier air.
  • the separating device 24 is designed as a small cyclone separator, which can be arranged directly on the buffer container or above it on the boom 4.
  • the suction line 16 is connected to the outlet of the cyclone vessel, while the delivery line 15 leads tangentially into it.
  • one or more guide plates 25 can be provided, which distribute the additive coming from the cyclone separator over the width of the buffer container 10.
  • FIG. 5 illustrates another development of the conveying device 12.
  • the buffer container 10 is connected to the conveying line 15, which supplies air with additive.
  • a separate conveying line 15 which supplies air with additive.
  • a cyclone separator 27 is provided in the suction line 16, the inlet of which is connected to the buffer tank 10. Its output leads to the suction unit 17, which thus receives cleaned air.
  • the lower outlet of the cyclone 27, which is intended for the discharge of separated solids, is connected to the storage container 13.
  • the buffer container 10 has a fill level sensor 28 which is connected to a control device 29. This is also connected to a height and inclination sensor 30, which is illustrated symbolically in FIG. It can be formed by detecting the position of the hydraulic drives moving the excavator shovel 5 or the boom 4.
  • the control device 29 controls the suction unit 17. It can also be responsible for controlling the hydraulic motor 11 of the cellular wheel sluice 9 and the milling cutter 6.
  • the control device serves to refill the buffer volume 10 if necessary. This is initiated as soon as the fill level falls below a minimum.
  • the control device can additionally check whether the position of the buffer container 10 is suitable for refilling. Is the buffer container 10 tilted into an unfavorable position, for example due to the work of the excavator bucket 5, or e.g. Raised very far, refilling can currently be inappropriate. If the fill level still allows waiting, the refilling process can be delayed until more favorable conditions are present, in which the suction unit 17 can then be switched on.
  • the suction unit 17 can have its own drive motor or can be driven by the excavator 1.
  • FIG. 6 Another embodiment is illustrated in FIG. 6. This has a flexible screw conveyor 31, which is driven by a motor 32 and, if necessary, refills additive from the storage container 13 into the buffer volume 10.
  • FIG. 7 illustrates a further embodiment of the invention, which does not require a buffer volume 10.
  • the Storage container 13 is mounted on the excavator or another carrier vehicle or set up separately, from the storage container 13 the flexible screw conveyor 31 leads to a spreading device 9a.
  • This can be arranged on the free end of the boom 4 (FIG. 1) or on an excavator shovel 5.
  • a milling cutter 6 can be provided on the boom 4 or the excavator shovel 5.
  • the spreading device is arranged, for example, in such a way that it releases aggregate into the working area of the milling cutter 6.
  • the screw conveyor 31 can be constructed rigidly or flexibly in one or more parts. The latter is illustrated in FIG. 7. Its two sections 31a, 31b, at least one of which is flexible, are connected to one another via a joint 37.
  • the joint 37 contains a channel which leads from the end of the screw conveyor 31a to the underlying start of the screw conveyor 31b. Both sections 31a, 31b are each driven by their own drives 32a, 32b, which are essentially switched on and off at the same time.
  • the spreading device 9a arranged at the end of the second section can be used in e.g. rigid, terminal casing section of the screw conveyor (section 31b), which is provided with side openings 38.
  • a buffer volume 10 is present (FIG. 6), as illustrated in FIG. 8, this can also be done using compressed air.
  • This has the advantage that in principle only the delivery line 15, ie only one line, is required to fill the buffer volume 10.
  • the delivery is via a compressed air line 33
  • Compressed air for example, is fed into the delivery line 15 via a venturi arrangement 34.
  • Venturi arrangement 34 Via the Venturi arrangement 34, additive is simultaneously sucked out of the storage container 13.
  • the delivery line 15 thus conveys a mixture of air and additive.
  • the exit can, for example, lead directly into the working area of the milling machine.
  • Residual quantities not carried away in the buffer tank and carried away by the air are thus supplied for the intended use. This applies in particular if the compressed air transport is only released when the metering device is also working.
  • the check valve 35 can also be provided in all other exemplary embodiments in order to prevent the aggregate from flowing back into the delivery line 15 when the excavator bucket 5 is raised.
  • a line 16 can lead back from the outlet 36 to the storage container 13 in order to return entrained dust portions into the storage container 13.
  • separation using the cyclone principle is possible.
  • the storage container 13 can be provided with a device for loosening the existing additive.
  • air injection nozzles 37 can be used, for example, which are connected to a compressed air source.
  • the implement 1 has an operating supply for an additive, for example lime, which is on the Excavator shovel 5 is to be delivered.
  • the storage device 14 in one embodiment has a main storage volume 13 on the excavator and a buffer volume 10 on the excavator bucket.
  • the buffer volume 10 is replenished from time to time or continuously via a conveyor 12.
  • a vacuum conveyor can be used here.
  • a flexible screw conveyor 31 is provided. This embodiment does not require a buffer volume.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)

Abstract

L'invention concerne un dispositif (1) comportant un réservoir de fonctionnement conçu pour stocker un additif comme de la chaux destiné à être délivré à la pelle de la drague (5). Afin de permettre un fonctionnement ininterrompu et sans défaut, le dispositif d'approvisionnement (14) comprend, dans un mode de réalisation préféré, un volume de réservoir principal (13) au niveau de la drague et un volume tampon (10) au niveau de la pelle de la drague. Ledit volume tampon (10) est rempli de temps en temps ou continuellement au moyen d'un dispositif de transporteur (12). Dans un autre mode de réalisation, le dispositif (1) selon l'invention comporte un transporteur à vis sans fin (31) flexible et est dépourvu de volume tampon.
PCT/DE2002/001870 2001-05-25 2002-05-23 Dispositif conçu pour enlever et preparer des couches de revetement, de la terre ou du fond de roche WO2002095145A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE10292221T DE10292221D2 (de) 2001-05-25 2002-05-23 Arbeitsgerät zum Ausheben und Aufbereiten von Deckschichten, Erdreich oder felsigem Untergrund

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20108727.8 2001-05-25
DE20108727U DE20108727U1 (de) 2001-05-25 2001-05-25 Arbeitsgerät zum Ausheben und Aufbereiten von Deckschichten, Erdreich oder felsigem Untergrund

Publications (1)

Publication Number Publication Date
WO2002095145A1 true WO2002095145A1 (fr) 2002-11-28

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PCT/DE2002/001870 WO2002095145A1 (fr) 2001-05-25 2002-05-23 Dispositif conçu pour enlever et preparer des couches de revetement, de la terre ou du fond de roche

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DE (2) DE20108727U1 (fr)
WO (1) WO2002095145A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102717444A (zh) * 2012-06-28 2012-10-10 陈科能 一种全自动移动型关节式矿山切石机
CN104060642A (zh) * 2014-07-08 2014-09-24 安徽康成工业产品设计有限公司 搅拌式淤泥抽吸装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20108725U1 (de) * 2001-05-25 2001-08-30 Schenk Juergen Grabgerät mit Saugeinrichtung
DE102012021421A1 (de) * 2012-10-30 2014-04-30 Bomag Gmbh Arbeitszug mit einer fahrbaren Siloeinheit für Schüttgut und einem Fräsfahrzeug zum Einbringen von Schüttgut in den Bodenuntergrund, Fräsfahrzeug und Verfahren zum Überladen von Schüttgut von der fahrbaren Siloeinheit zum Fräsfahrzeug
CN106592668A (zh) * 2016-12-27 2017-04-26 重庆金澳机械制造有限公司 一种吸尘挖掘机

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4652180A (en) * 1985-07-03 1987-03-24 Jenkins Jr George W In situ stabilization of waste liquid encatchments
EP0475227A2 (fr) * 1990-09-05 1992-03-18 Lobbe Xenex GmbH Procédé et dispositif pour le traitement microbien in-situ de terre contaminée
WO1994013889A1 (fr) * 1992-12-10 1994-06-23 Yit-Yhtymä Oy Procede et dispositif de consolidation du sol et leur application
DE9421169U1 (de) * 1994-02-25 1995-06-22 Kirchhoff-Heine Strassenbaugesellschaft mbH & Co. KG, 88085 Langenargen Vorrichtung zum Zusetzen von Zuschlagsstoffen in einen Boden
JPH09296476A (ja) * 1995-09-21 1997-11-18 Nippon Clean Engine Lab Co Ltd 掘削用バケットの粘性物質排出装置
JPH10102528A (ja) * 1996-09-30 1998-04-21 Kurita Water Ind Ltd 泥土と粉末薬品の混合装置
US5830752A (en) * 1993-05-03 1998-11-03 Bruso; Bruce L. Apparatus for in-situ soil remediation
US6171024B1 (en) * 1997-06-19 2001-01-09 J. A. Jones Environmental Services Company Injection hopper for use in a material delivery system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4652180A (en) * 1985-07-03 1987-03-24 Jenkins Jr George W In situ stabilization of waste liquid encatchments
EP0475227A2 (fr) * 1990-09-05 1992-03-18 Lobbe Xenex GmbH Procédé et dispositif pour le traitement microbien in-situ de terre contaminée
WO1994013889A1 (fr) * 1992-12-10 1994-06-23 Yit-Yhtymä Oy Procede et dispositif de consolidation du sol et leur application
US5830752A (en) * 1993-05-03 1998-11-03 Bruso; Bruce L. Apparatus for in-situ soil remediation
DE9421169U1 (de) * 1994-02-25 1995-06-22 Kirchhoff-Heine Strassenbaugesellschaft mbH & Co. KG, 88085 Langenargen Vorrichtung zum Zusetzen von Zuschlagsstoffen in einen Boden
JPH09296476A (ja) * 1995-09-21 1997-11-18 Nippon Clean Engine Lab Co Ltd 掘削用バケットの粘性物質排出装置
JPH10102528A (ja) * 1996-09-30 1998-04-21 Kurita Water Ind Ltd 泥土と粉末薬品の混合装置
US6171024B1 (en) * 1997-06-19 2001-01-09 J. A. Jones Environmental Services Company Injection hopper for use in a material delivery system

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 03 27 February 1998 (1998-02-27) *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 09 31 July 1998 (1998-07-31) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102717444A (zh) * 2012-06-28 2012-10-10 陈科能 一种全自动移动型关节式矿山切石机
CN104060642A (zh) * 2014-07-08 2014-09-24 安徽康成工业产品设计有限公司 搅拌式淤泥抽吸装置

Also Published As

Publication number Publication date
DE20108727U1 (de) 2001-08-30
DE10292221D2 (de) 2004-04-29

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