EP0921237A2 - Appareil d'exploitation - Google Patents

Appareil d'exploitation Download PDF

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Publication number
EP0921237A2
EP0921237A2 EP98122852A EP98122852A EP0921237A2 EP 0921237 A2 EP0921237 A2 EP 0921237A2 EP 98122852 A EP98122852 A EP 98122852A EP 98122852 A EP98122852 A EP 98122852A EP 0921237 A2 EP0921237 A2 EP 0921237A2
Authority
EP
European Patent Office
Prior art keywords
removal
mining device
mining
vehicle
arm
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.)
Withdrawn
Application number
EP98122852A
Other languages
German (de)
English (en)
Other versions
EP0921237A3 (fr
Inventor
Fritz Tibussek
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.)
Mhwirth GmbH
Original Assignee
Wirth Maschinen und Bohrgeraete Fabrik GmbH
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 Wirth Maschinen und Bohrgeraete Fabrik GmbH filed Critical Wirth Maschinen und Bohrgeraete Fabrik GmbH
Publication of EP0921237A2 publication Critical patent/EP0921237A2/fr
Publication of EP0921237A3 publication Critical patent/EP0921237A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/16—Machines slitting solely by one or more rotating saws, cutting discs, or wheels
    • 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
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/8858—Submerged units
    • 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
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/92—Digging elements, e.g. suction heads
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C50/00—Obtaining minerals from underwater, not otherwise provided for

Definitions

  • the invention relates to a soil removal device which Preamble of claim 1 corresponding type.
  • the starting point for the invention is the removal of hard rock been under water.
  • the problem with mining Rock under water is the often relatively great depth of 200m and more below sea level, in which the Locations are. This mining situation requires special Mining techniques.
  • DE 29 38 448 A1 describes a device for digesting crops known from the bottom of a body of water from which the present Invention comes out. It includes one from a platform the lowerable vehicle, which is used to release the Soil material has a paddle wheel. The loosened soil material becomes the platform by means of a conveyor line promoted.
  • a disadvantage of the known prior art is that All of the aforementioned mining techniques are relatively sensitive when or not suitable for mining hard rock deposits, are.
  • the invention has for its object a generic Develop device so that it adapt more easily to different mining situations can and a greater mining performance even with hard rock formations enables.
  • the means for releasing the soil material a breast disintegration at least one according to the undercut principle working tool must include the tool due to its peeling way of working only the Tensile strength (shear-resistant) of the soil material to be removed overcome.
  • this shear strength is only a fraction of the compressive strength of the hard rock formations, so that to achieve a comparable Driving the mining front a much lower one Drive power is required.
  • This is based on the undercut principle working tool can by means of the vehicle be supported on the floor and with an appropriate Feed force work. Because of the driveability the vehicle can target the removal tool on the ground be moved back and forth.
  • That is particularly powerful and versatile Mining device if that according to the undercut principle working tool for loosening the at the Breast of the existing soil comprises an ablation arm, the one with about the longitudinal central axis of the removal arm rotation-driven removal head is equipped. The breasts are then gradually removed continuous lowering of the tool.
  • the removal rate that can be achieved is in the case of an inventive one Mining device in which the at least one removal arm with the help of a force generator by at least one Pivot axis preferably pivotable at least about 90 ° is further increased because without a movement of the Vehicle the soil on the mining chest to be solved can.
  • the removal head can be activated by actuating the force generator be pivoted about its pivot axis so that he on the swept, roughly arched route removes a layer of rock. During this removal process the vehicle does not need to be moved.
  • the removal tool by one of the thicknesses in the following pivoting process corresponding layer of rock to be removed The route is lowered and the removal arm is pivoted back.
  • the mining progress that can be achieved with the mining machine depends among other things from the maximum achievable with the removal tool Cutting width. It is therefore an advantage that Swivel axis on the opposite of the working head Provide end of the removal arm, as a result, given Length of the removal arm a maximum swivel range of the removal head and a maximum material removal per Cut is achievable.
  • the mining device according to the invention is particularly good for Hard gesture information is suitable and has one for it particularly high cutting performance when the cutting head one or more eccentrically on its face Cutting rollers attached to the longitudinal center axis of the removal arm includes.
  • it is advantageous to three, preferably to provide five cutting rollers.
  • Regarding loading the removal arm as evenly as possible it is also advantageous to set the angular distances apart adjacent cutting rollers constant in the direction of rotation to perform, especially the axes of the cutting rollers of seen from the front of the removal head on the Longitudinal central axis of the removal arm at an acute angle, preferably 10 ° to run.
  • the vehicle For moving the vehicle back and forth, it can preferably a crawler track or a hydraulically operated Have walking gear.
  • the vehicle preferably has a boom, which is one to the sea floor in the substantially parallel axis is pivotable.
  • the horizontal pivoting movement of the removal arm takes place advantageously using a piston / cylinder unit, one end spaced from the pivot axis is articulated to the removal arm while moving the other end of which supports the boom.
  • the excavator can be used to achieve a greater mining performance preferably two according to the undercut principle working tools include, then the pivot axes of the respective removal arms opposite one another provided on both sides of a transverse plane of symmetry of the boom are. They are preferably independent of one another actuated removal arms just controlled so that they perform an opposite pivoting movement. By the opposite of the pivoting movement stand out reaction forces acting on the boom tend to on.
  • an overlap angle of about 15 ° per removal arm as special suitably shown.
  • An important feature in a mining device according to the invention which is intended for an underwater application and with a surface water device, for example a Interacting profit ship is the subject of the claim 19.
  • the delivery line is part of this an air lifting device operated from the extraction vessel.
  • the interaction of the removal tool with its effective mining properties for hard rock formations with an air lifting device allows large Quantities of the loosened soil or mining material to the surface or bring it to the recovery ship, where applicable a review and concentration of the mined material after valuable minerals.
  • An additional suction nozzle can be attached to soil or debris be provided to the vehicle.
  • a pump can be installed in the line ending in the suction nozzle be arranged, the degraded material captured by the suction nozzle feeds under pressure into the delivery line, which also soil removed by the removal tool.
  • Fig. 1 leaves one on the sea 2 above a mining site A floating recovery ship 1 will recognize which over the delivery line 3 of an air lifting system with an in the sea lowered excavator 4 is connected.
  • the Presentation is not to scale. It is understood that the excavator 4 in relation to the mining ship 1 is much smaller.
  • the excavator 4 has a crawler track 5 on which A structure 7 about a to the sea floor via a rotating crane 6 10 is arranged approximately pivotable axis.
  • the crawler track 5 could also be a walking device 28 can be provided, as it is dashed on the right in Fig. 1 is indicated.
  • a control and drive center 8 there is a hydraulic system and control systems for the drive of the crawler chassis and for the rotary drive and the pivotal movement of the mining tool 12, which the mining chest 9 works and a liftable and lowerable Boom 11 is mounted on the structure 7. That from Soil mined from excavation tool 12 - also "excavated material" called - will be described in a later Transferred into a line 15, which in the delivery line 3 of the air lifting system merges. 13 designated the compressed air supply, 14 the feed nozzle of the Air lifting system on which the compressed air is fed into the delivery line 3 is pressed to the content of the delivery line 3rd under the pressure of the outside water in To put movement.
  • the soil material arrives in the direction of the arrow 21 into a funnel-shaped mouthpiece 30 and passes then the line 15 opening into the delivery line 3.
  • a suction nozzle 16 can be seen, the "sniffs" the seabed 10 to be removed from the mining tool 12 degraded but not absorbed on the seabed 10 broken down items to be recorded. The latter will sucked in by means of a pump 17 and a line 18, the shortly before the feed nozzle 14 for the lifting air into the Delivery line 3 opens.
  • Fig. 3 is the excavator 4, which is also suitable for surface operations suitable, shown enlarged.
  • the suction nozzle 16 is by means of supports 22 at the rear end of the pivotable structure 7 arranged to the broken To be able to record material.
  • Near the control and drive center 8 is the boom 11 from the structure 7 towering pilons 23 (FIG. 1) about a horizontal axis 24 pivoted up and down. The swing is effected by hydraulic cylinders 25 on the front Attack end of structure 7.
  • the boom 11 protrudes in front beyond the body 7 and the crawler chassis 5 and carries two at the free end according to the undercut principle working dismantling tools 12. Depending on your needs even one mining tool or more than two mining tools to be available.
  • the removal of the soil material from the excavation breast serve the total of 12 dismantling tools, which each comprise a removal arm 35, which on its front end carries a removal head 47 which during the degradation process by means of a not shown, for example hydraulically operated rotary motor becomes.
  • the other end of the removal arm 35 is each by means of a hinge joint 43 on the Boom 11 attached so that the removal tool 12 around the Hinge axis S of the hinge joint 43 can be pivoted can.
  • a pivoting of the removal arms 35 in each case only in one with the boom 11 in a horizontal position horizontal level possible.
  • the removal arms can, however also by means of a joint arrangement - for example universal joints - Be attached to the boom, the pivoting allow in multiple levels.
  • variable-length force generators for example piston / cylinder units are provided be.
  • two hinge joints 43 are symmetrical with respect to a vertically passing through the boom 11 Plane of symmetry K arranged so that the hinge axes S for the removal arms 35 approximately parallel to one another lie.
  • each removal arm 35 around Pivot axis S is used as a hydraulically operated one Piston / cylinder unit of trained, variable length Force generator 46, the one hand at a distance from that Hinge joint 43 articulated on the respective removal arm 35 is, and on the other hand another the bracket 11 attached joint 42 supports.
  • the boom 11 is double-walled at its front end, being the distance between the two walls is chosen such that in the space between the Walls the joints 42, 43, the force generator 46, the Removal arms 35 and line 15 find space.
  • the upper Wall of the boom 11 then serves to protect the actuating device of the removal tools 12 from falling Floor material.
  • raised guide surfaces can be provided with which the removal arm slides together and over the Removal reaction forces initiated in the boom 11 are so that the hinge joints 43 are relieved.
  • FIG Fig. 4 A possible embodiment of the removal heads 47 is shown in FIG Fig. 4 shown.
  • One from a rotary motor, not shown driven shaft 48 is at the front end of the Removal arm 35 is supported by a double roller bearing 49.
  • a conical seat 50 provided at the shaft end rotatably attached a support ring 51, which is in operation Mining tools is rotated.
  • the carrier ring 51 has three spaced from the longitudinal central axis M, an angle of bores 52 each forming 120 ° to one another, the Axes M seen from the removal head 47 on the longitudinal central axis M of the removal arm 35 at an acute angle of about 10 °.
  • the holes 52 are used to support three identical, cutting rollers 53 rotatable about the axis N again consist of a rotationally symmetrical to the N axis Cutting roller body 54, which faces the flat end face 55 slightly tapered.
  • To the cutter body 54 includes up to the end face 55 strongly conically enlarged area 56, the outer Edge with the outer edge of the perpendicular to the N axis End face 55 the sharp-angled edge of a cutting roller 53 forms.
  • each removal tool 12 are pivoted about their respective hinge axis S by retracting or extending the force generator 46 designed as a hydraulic piston / cylinder unit. During this pivoting movement, the rotating removal head 47 removes a layer of the soil material present on the excavation breast 9.
  • the removal arms 35 are preferably pivoted in opposite directions.
  • the two piston / cylinder units can be actuated separately via hydraulic control means (not shown). Any erosion reaction forces that occur are at least partially canceled out by this type of control.
  • the boom is lowered by means of the hydraulic cylinders 25. Another rock layer is removed by pivoting the removal arms with the aid of the force generators 46 in the opposite direction.
  • the boom 11 is then lowered further and the removal process begins again.
  • the material loosened by means of the removal heads 47 is discharged with the aid of the air lifting method explained above.
  • the funnel-shaped mouthpiece 30 which, in operation, extends close to the removal front to be removed in order to enable particularly effective suction of the detached soil material.
  • the structure 7 can optionally be pivoted about the vertical axis 26, or a cyclical overlap of the area in front of the mouthpiece 30 is provided.
  • the removal arms 35 are then pivoted in opposite directions until they are approximately parallel to one another.
  • the direction of movement of one removal arm 35 is then reversed, while the direction of movement of the other removal arm 35 on the right in FIG. 3 is maintained until it has been displaced by a certain angle into the removal area of the left removal arm.
  • the funnel-shaped mouthpiece 30 is in this case attached to the boom 11 in such a way that it can avoid the overcut movement of the removal arms 35.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Shovels (AREA)
  • Earth Drilling (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
EP98122852A 1997-12-03 1998-12-02 Appareil d'exploitation Withdrawn EP0921237A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1997153349 DE19753349C2 (de) 1997-12-03 1997-12-03 Unterwasser-Bodenabbaugerät
DE19753349 1997-12-03

Publications (2)

Publication Number Publication Date
EP0921237A2 true EP0921237A2 (fr) 1999-06-09
EP0921237A3 EP0921237A3 (fr) 2001-07-11

Family

ID=7850448

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98122852A Withdrawn EP0921237A3 (fr) 1997-12-03 1998-12-02 Appareil d'exploitation

Country Status (2)

Country Link
EP (1) EP0921237A3 (fr)
DE (1) DE19753349C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001077492A1 (fr) * 2000-04-05 2001-10-18 Sord Technologies Limited Appareil d'assemblage d'une garniture
JP2012144944A (ja) * 2011-01-14 2012-08-02 Nippon Steel Engineering Co Ltd 海底鉱床の採鉱方法およびその採鉱ユニット

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111022055B (zh) * 2019-11-20 2021-03-23 中国海洋大学 水力射流式海底多金属结核采集装置及方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2938448A1 (de) * 1979-09-22 1981-04-09 Fried. Krupp Gmbh, 4300 Essen Einrichtung zum gutabbau vom grund eines gewaessers
DE4015462A1 (de) * 1990-05-14 1991-11-21 Wirth Co Kg Masch Bohr Verfahren und maschine zum vortreiben von strecken, tunneln o. dgl.
US5035291A (en) * 1990-07-06 1991-07-30 Amoco Corporation Seafloor drilling apparatus
DE29522060U1 (de) * 1994-12-09 1999-07-29 Wirth Maschinen- und Bohrgeräte-Fabrik GmbH, 41812 Erkelenz Schlitzfräse

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001077492A1 (fr) * 2000-04-05 2001-10-18 Sord Technologies Limited Appareil d'assemblage d'une garniture
US6953307B2 (en) 2000-04-05 2005-10-11 Sord Technologies Limited Apparatus for assembling a liner
US7318627B2 (en) 2000-04-05 2008-01-15 Sord Technologies Limted Recovery head with track seal
US7410220B2 (en) 2000-04-05 2008-08-12 Sord Resources Limited Apparatus for assembling a liner
JP2012144944A (ja) * 2011-01-14 2012-08-02 Nippon Steel Engineering Co Ltd 海底鉱床の採鉱方法およびその採鉱ユニット

Also Published As

Publication number Publication date
DE19753349A1 (de) 1999-06-17
DE19753349C2 (de) 2000-07-06
EP0921237A3 (fr) 2001-07-11

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