CN103080475B - For method and apparatus for bulk seafloor mining - Google Patents

Abstract

A kind of seabed mixing mining tool for manufacturing seafloor bench fragment.Described instrument utilizes crawler-type mobile system to move through seafloor bench.Power and control interface receive power and control signal from surface source.Described instrument has a drum-type cutting machine for cutting described bench, and is adjacent to the sizing grill of described drum-type cutting machine, wherein, and the fragment that described sizing grill is manufactured by described drum-type cutting machine for screening.Also can have the jacket helping to accommodate fragment.Suction inlet can be utilized such as to combine shovel and auger obtains the fragment manufactured.

Description

For method and apparatus for bulk seafloor mining

Technical field

The present invention relates generally to marine mining, particularly relate to a kind of use mixing cutting subsea tools carry out undersea mining and The system and method for Ji Kuang.

Background technology

Sea bed excavation be may often be such that and carried out by excavation, thus such as obtains valuable wash or make water route keep Navigation.Suction type mining method includes being placed near sea bed material to be excavated the collecting terminal of pipeline or pipe, and utilizes surface Pump produces Negative Pressure Difference, thus water and neighbouring removable bottom sediment are drawn to pipeline.Cut suction mining method inhaling further Porch or suction inlet are provided about cutter head so that decompose being drawn to the compacted soil of pipeline, grit or even hard rock.Large-scale Cut suction excavator and can use the cutting power of tens thousand of kilowatts.Other sea bed digging technology includes revolving suction mining method, spray Penetrate formula mining method, gas-lifting type mining method and bucket type mining method.

Most mining equipment is the most only the deep operations of tens of meters, even if the most large-scale excavator, it is maximum Excavating depth the most slightly more than 100 meters.Therefore excavate and be usually limited to the most shallower waters.

Ocean floor drilling (such as oil well) can be carried out in the deeper waters of the most a few km degree of depth.But, ocean floor drilling Mining technique cannot be used for undersea mining.

Any discussion to file, bill, material, equipment, document etc. included in this specification aims to provide this Bright background, should not do and recognize a part that is above-mentioned any or that be monolithically fabricated prior art basis or as prior to the application The common knowledge of the relevant art existed before the priority date of each claim.

Throughout the specification, word " includes (comprise) " or its deformation such as " includes (comprises) " or " bag Include (comrpising) " should be understood to that knowing finger well includes described element, entirety or step, or the group of element, entirety or step, But be not excluded for any other element, entirety or step, or the group of element, entirety or step.

Summary of the invention

According to first aspect, the present invention provides a kind of seabed mixing mining tool, for manufacturing the fragment of seafloor bench, institute State mixing mining tool to include:

Crawler-type mobile system, described crawler-type mobile system makes described mixing mining tool move through seafloor bench；

Power and control interface, described power and control interface receive the power from surface source and control signal；

Drum-type cutting machine, described drum-type cutting machine is used for cutting bench；And

Being adjacent to the sizing grill of described drum-type cutting machine, described sizing grill is cut by described drum-type for screening The fragment that machine manufactures.

According to the second aspect of the invention, it is provided that a kind of method of fragment manufacturing seafloor bench, described method includes:

Mixing mining tool in seabed receives the power from surface source and control signal；

Described seabed mixing mining tool moves through described seafloor bench；And

The drum-type cutting machine of described seabed mixing mining tool cuts described bench, is adjacent to described drum-type cutting machine Sizing grill sieve the fragment that manufactured by described drum-type cutting machine.

Thus, the described seabed mixing mining tool of the present invention advantageously provides mixing cutting and betides or be formed at seabed Bench.

In a preferred embodiment of the invention, described seabed mixing mining tool includes the material close to described cutting drum Slurry entrance and shurry pump system, described slurry inlet is configured to the broken of the neighbouring acquisition slip form from described sizing grill Block.Described slip can be pumped to shorter distance from described seabed mixing mining tool, the most only be pumped to instrument institute Use and maybe will use side or the rear of described instrument in path, to avoid described instrument to move on the fragment in seabed.Or, Described slip can be pumped to the seabed storage location of distance undersea mining instrument certain distance via suitable conveyance conduit.

In a preferred embodiment, collection obtains cover and partly surrounds described cutting drum, to improve described shurry pump system Receiving and collection to fragment.

Preferably, described sizing grill is by utilizing described cutting drum to pulverize the size spacing more than grid with cylinder Granule, thus sieve fragment.

Described seabed mixing mining tool can be wireless remote control vehicle (remotely Operatedvehicle, ROV) or by the wireless vehicular of the parent manipulation being connected with ground.

Further, the present invention provides a kind of instrument being suitable in some embodiments and disposing under the profound depth of water.Example As some embodiments operate under the degree of depth of greater than about 400 meters, more preferably more than 1000 meters or more preferably more than 1500 Operate under the degree of depth of rice.It should be appreciated, however, that the instrument of the present invention shallow in the waters of 100 meters or other the most shallower water The seabed cutting being provided with in lower application selects.It is, therefore, appreciated that mention that seabed or sea bed are not intended as getting rid of this Invent at the bottom of lakebed, estuarine water, bay is water-bed, probing water-bed (sound floor), seabeach are water-bed, in the bottom, harbour, at salt Being used for digging up mine or excavating in water, half saline or clear water, these application all fall within the scope of this specification.

In some embodiments, the mixing mining cutting machine of described mixing mining tool can include electronic or hydraulic-driven Cutting drum, described cutting drum guides during movement or guides described instrument.Described cutting drum is mountable to cantilever On assembly, thus allowing variable depth of cut, wherein said depth of cut is such as corresponding to the material in cut bench Hardness can select.

The drum-type cutting machine of described mixing mining tool is preferably configured as producing the fragment of required size.Such as, The form being sized for the slip to be made up of water and fragment of described fragment is collected.Preferably, described cylinder cutting The degree of depth more than the width of machine track.

Wherein, the thickness of material to be obtained is adopted by the mixing of described seabed more than the height of bench, the height of described bench The depth of cut of miner's tool limits, and the mixing mining tool of the present invention repeatedly mixes mining step thus removes described material Multilamellar bench.In the most mobile, the suction inlet of described mixing mining tool is utilized to collect by seabed mixing mining tool The every time mobile fragment manufactured.

The weight of described mixing mining tool is preferably carried out selecting so that described instrument has enough weights when diving Amount, thus described mixing mining tool can apply enough downward power to manufacture bench fragment.

Preferably, described seabed mixing mining tool is designed to work in the bench plane of relatively flat and relative level Make, and be cut to downwards in surface to reach depth of cut while bench surface reciprocating.Fragment is left on suitable When place, follow-up use seabed collection kit is collected, or cutting time utilize be positioned at the suction inlet near cutting drum Collect, be then transported away from described instrument.Described seabed mixing mining tool preferably moves along one or more path round-trip Whole bench is substantially cut through bench surface.Preferably, the cutting path of described mixing mining tool is based on relevant sea Described cutting path is optimized by specific bench size and bench shape existing for position, the end, so that the ore deposit of described bench Stone acquisition rate maximizes.

Preferably, collection or storage area are positioned at the far-end of Ore bench, and in such embodiment, described mixing is adopted Miner has shurry pump system or side throwing system (side cast system) etc., is used for depositing being positioned at and collects or storage area The Ore of cutting.Or, it is identical with the position of Ore bench that mixing mining tool deposits the collecting zone of fragment, wherein said Mixing mining tool does not the most reappose Ore when cutting Ore.Such embodiment allows mixing mining tool Design, function and operation concentrate on this split requirement mixing mining rather than consideration reapposes fragment and becomes complicated.

Described bench can include the Ore bench of the valuable Ore to be obtained, or can be included as other purposes need Solid rock to be removed or other seabed material.Described Ore can include the substantial amounts of sulfide in seabed.

Present invention recognize that the with a varied topography of position, seabed interested, thus the present invention provides and operates multiple seabed simultaneously Mining tool thus obtain seabed material efficiently.

In this manual, term " drum-type cutting machine " is not intended as including disc cutter.Disc cutter refers to Such as its otch is narrower than the diameter of disc cutter.

According to the third aspect of the invention we, it is provided that a kind of seabed mixing mining tool, for manufacturing the fragment of seafloor bench, Described mixing mining tool includes:

Crawler-type mobile system, described crawler-type mobile system makes described mixing mining tool move through seafloor bench；

Power and control interface, receive the power from surface source and control signal；

Drum-type cutting machine, in moving process, described drum-type cutting machine is positioned at the rear of described instrument, and is configured For cutting bench when moving through described bench and fragment being stayed described seabed so that later collection.

According to the fourth aspect of the invention, it is provided that a kind of method of fragment manufacturing seafloor bench, described method includes:

Mixing mining tool in seabed receives the power from surface source and control signal；

Described seabed mixing mining tool moves through described seafloor bench；And

The drum-type cutting machine of described seabed mixing mining tool cuts described bench, in moving process, described cylinder Formula cutting machine is positioned at the rear of described instrument, and fragment is stayed seabed is used for so that later collection.

A third aspect of the present invention and fourth aspect allow to improve cutting efficiency, thus cut fragment relative to collection itself Mixing cutting machine, its mining speed accelerate.

Some embodiments of third aspect present invention and the third aspect can include the sizing grill being adjacent to cutting drum, uses In the fragment that screening is manufactured by cutting drum, but sizing grill can also be saved in other embodiments.

Accompanying drawing explanation

In conjunction with accompanying drawing, embodiments of the invention are illustrated, wherein:

Fig. 1 is the schematic representation of the undersea system according to one embodiment of the present invention；

Fig. 2 a and Fig. 2 b shows the operation figure of the mixing Mars Miner according to one embodiment of the present invention；

Fig. 3 is the solid representing the mixing Mars Miner with single cutting drum according to another embodiment of the present invention Figure；

Fig. 4 is the front view of the mixing Mars Miner being similar to embodiment according to the present invention；

Fig. 5 is the solid representing the mixing Mars Miner with two cutting drums according to a further embodiment of this invention Figure；

Fig. 6 is deployment and the schematic diagram of operating system describing mixing Mars Miner；

Fig. 7 a and Fig. 7 b shows the mixing mining tool according to another embodiment of the present invention；

Fig. 8 a and Fig. 8 b respectively illustrated to cut and cut with cut-in type.

Detailed description of the invention

Fig. 1 is undersea system 100 and the schematic representation of the mixing Mars Miner 112 according to one embodiment of the present invention. Crane 102 and dehydration equipment 104 be installed on oceangoing production support ship (ProductionSupport Vessel, PSV)106.PSV 106 has Ore Transportation machine, in order to be loaded onto on barge 108 by the Ore after the dehydration of acquisition.This reality The mode of executing provides a kind of can carry out, 2500 meters of degree of depth, the instrument 112 that operates, but alternate embodiments can be designed as using In operating 100 meters to the 3000 even deeper degree of depth of meter degree of depth.During production operation, use undersea mining instrument (Seafloor Mining Tool, SMT) excavates Ore from sea bed 110.SMT includes seabed mixing Mars Miner 112, and seabed is collected Machine 114, seabed auxiliary Mars Miner 116 and seabed storage facilities 126.

Will by the Ores of mixing mining machinery (Bulk Mining, BM) 112 and auxiliary Mars Miner (AUX) 116 exploitation via Storing and conveying pipeline 126 is pumped to store heap 124.Ore in storage heap 124 is collected machine 114 and collects, and with the shape of slip Formula is pumped to the bottom of riser 122 by vertical conveyance conduit (Riser Transfer Pipe, RTP) 120.Then, Seabed lifting pump 118 promotes slip via the riser 122 of rigidity, and riser 122 is interrupted in FIG and illustrates, at this Embodiment is 2500 meters.Slip is flow to Ground Support ship 106 and is dehydrated by equipment 104.Under stress, useless Water returns to seabed, thus provides the blowing pressure (charge pressure) for seabed lifting pump 118.Ore unloading after dehydration To transport barge 108, thus transport is to storage facilities, and transports subsequently to processing place.

BM 112 cuts this bench while advancing through bench (bench), and one or many reciprocates and wears Cross bench, thus substantially cut the whole region of bench.BM 112 can also do further and intersect with original reciprocating Or vertical is extra mobile, thus more closely repairs the edge of bench.Fig. 2 a shows the sea cutting the stage in the first bench End mining environment.

The mixing mining effect of known BM 112, it is contemplated that some part of bench will not be cut completely by BM 112 Cutting, especially side wall (lateral extremities) and bottom, in these parts, BM 112 must keep safe limit Edge and there is enough spaces turn to, thus start new the reciprocating of this bench.Fig. 2 b shows in cutting many After place's bench, the edge of bench is about 4 meters high.

BM 12 is designed to: remotely operate control by producing of upper strata on assistance ship 106, and attached at mining sites Closely transferred, and cut mineral deposit.In this embodiment, BM 112 requires the minimum bench area for effectively operation It is about 750 square metres.In alternative embodiment, the size of BM can be smaller, thus allows BM at area less than 750 squares Operate on the area of rice.Or, in other embodiments, BM can be large-scale BM, and requires that minimum bench size is more than 750 square metres, thus operate.Then, in the way of Fig. 2 a and Fig. 2 b illustrates, bench is gradually removed from high point, thus obtain Obtain the clitter of mineral depositions.

The particle size of excavation is to be configured by the cutting machine of BM to control with pace.This depends on the straight of cutting machine Footpath, pick spacing (pick spacing), angle, rotating speed and machine translational speed.Can manually or automatically control cutting system System parameter (rotating speed of cutting machine, depth of cut, translational speed).In some embodiments, it is provided that interlocking is as a kind of safety Measure, with the potential damage preventing cutting operation from postponing and to machine.In alternative embodiment, particle size can be passed through Disintegrating machine or be integrated to the screening plant of BM and control.

The extra excavation route of BM 112 and means of transport are handled and are turned to and can carry out either manually or by automatic flow. Cutting Automation is preferably maximized, and to this end, the control system of PSV 106 has to be incorporated into automatic feedback control adopts Ability in the model of ore deposit, so that operating parameter (the Ore rank of such as rate of cutting, acquisition, formation hardness and upper strata ladder The particle size of section) can be automatically used for controlling the exploitation of follow-up lower floor bench.

In a word, the purpose of cutting sequence is to make productivity ratio maximize and transport the cutting Ore that seabed stores.Once Ore It is cut and stays seabed, then collecting followed by any proper implements, it is preferred to use separation collection (Gathering Maching, GM) 114 collect.

Below in conjunction with Fig. 3 and Fig. 4, it is described more fully the seabed fortune for mixing mining, cutting and excavated material Defeated instrument 112.The undersea mining instrument 112 of present embodiment provides Ore cutting/screening function.Control system in the ship of PSV System guarantees that the operating efficiency of SMT maximizes, make simultaneously safe operating area between machine, parent and hoist cable maximize with Guarantee continuous operation.Fig. 3 is the axonometric chart representing the BM according to embodiment of the present invention.Fig. 4 is to implement according to the present invention is similar The front view of the mixing Mars Miner of mode.

As shown in Figure 3 and Figure 4, BM is large-duty cutting machine, it is therefore an objective to excavate target Ore and prepare by its with Slip form is pumped to PSV.This system includes the electronic cutting drum assembly 302 being positioned at means of transport 112 rear.Cutting drum Assembly 302 is installed on slider assembly 304, and slider assembly 304 can promote or reduce cutting drum assembly 302.Cutting drum 302 are designed to cut the bench as deep as 4 meters in repeatedly moving, and it is suitable to be stayed evenly distributedly by the material becoming fragment Local.Have and recapture the particle size distribution of procedure match with slip transfer parameters and ground with becoming the compatible materials of fragment. Cutting drum may call for cutting (overcut) or undercutting (undercutting) pattern operation to cross.In alternative embodiment, Cutting drum assembly can be hydraulically operated.

Crawler-type mobile system 306 can drive forwards means of transport 112, simultaneously cutting drum 302 and cutting rock or Ore engages.After cutting, simply the Ore of cutting stayed and be retained in seabed, to obtain suitably by seabed collection machine 114 Take and be transported to RALS pumping system 118.The major function of BM 112 cut in single or multiple moves and sieve 4 meters deep Bench, for use as large-duty horizontal resection machine.Therefore, BM is heavier crawler frame, and its center of gravity is relatively low, so that Transmit to the energy of rock or Ore supporting body and maximize.The machine of this embodiment transmits about 900kW to rock surface, needs Total machine power is 2MW to 3MW.

In the alternate embodiments shown in Fig. 5, mixing Mars Miner includes two cantilevers being arranged on cutting drum, often Individual cantilever is positioned at one end of means of transport.In this embodiment, means of transport need not each by the movement of bench Turn to, because whichever cutting drum is followed at means of transport rear, be all substitutable for simply engaging.Enforcement at Fig. 3 to Fig. 5 In mode, cutting width is more than machine track width.

Fig. 6 is deployment and the schematic diagram of operating system describing mixing Mars Miner.Here, production support ship (PSV) 106 tool Having control room, this control room operates BM 112 together with capstan winch and A-Frame, and capstan winch includes parent and hoist cable, and A-Frame is used Deployment and acquisition in BM 112.BM 112 is connected with ship 106 by parent cable and main lifting cable.Parent cable provides dynamic Power is to drive track drive motor, hydraulic system driving motor and diced system driving motor.Parent also provides for BM 112 and behaviour Make the polynary optic communication links between control room.

By main lifting cable, BM 112 is reduced to seabed from PSV 106.When BM 112 lands to seabed, can break Dispersing and elevation rises cable, then promote cable and may return to PSV 106 or return to the peace tangled with parent during bench cutting operation Full-height.When BM 112 gets out return to PSV 106, lifting cable can be reconnected.

During cutting operation, reduce cutting drum 302, and when cutting according to hardness and the required percentage of damage of rock Rock surface is applied power.Means of transport moves forward along crawler belt, and cutting drum 302 cuts with speed and the power controlled. Automatic flow suitably maintains constant cutting force, and the power of cantilever 304 and the fltting speed along crawler belt automatically correspond to The change of cutting force demand and be adjusted.In single or multiple moves, Ore is cut and is shelved on the bench as deep as 4 meters In.BM 112 enters strip (plan developing strip) advance along the planar row of cutting Ore, until position Or bench is cut to the depth of cut that single moves completely, single machine is then used to collect Ore.

At the end of cutting route, the BM being configured with dual cutting drum device as shown in Figure 5 is risen cutting of rear Cutting cylinder, running, to next cutting route (parallel with the route just completed), reduces the cutting drum in front, and continues behaviour Make (the most effectively exchange direction thus cutting machine cantilever is always located in the rear side on direct of travel).

It is configured with the BM of single cutting drum as Fig. 3 and Fig. 4 shows, means of transport hoisting drum 302, the most substantially Rotate 180 degree to start new cutting route.

Alternatively, BM 112 installs water injection system, is cleaned during to block in cutting drum excavation portion, Yi Ji Means of transport crawler belt is rinsed when being covered by material.

Fig. 7 a and 7b shows the mixing cutting machine 700 according to another embodiment of the present invention.Mixing cutting machine 700 includes Electronic cutting drum assembly 702, this cutting drum assembly 702 is positioned at the front of means of transport 700.This cutting drum assembly 702 Being installed on slider assembly 704, this slider assembly 704 can promote and reduce cutting drum assembly 702.Cutting drum assembly 702 are designed to cut the bench as deep as 4 meters in repeatedly moving.Sizing grill 708 is set near cutting drum 702, sieve Lattice grid 708 are installed on slider assembly 704, although grid 708 is installed on means of transport chassis in alternative embodiment It is similar to shovel on 710.Sizing grill sieves the fragment manufactured by cylinder 702, is sized to be suitable to the size of slip form transport. When instrument 700 moves forward, shovel 710 makes fragment separate with sea bed, and auger 712 promotes described shovel towards described suction inlet In fragment, although not shown in Fig. 7, but suction inlet is normally at 714.

Thus, mixing cutting machine 700 cuts in single flow process, sieves and upwards inhale dynamic fragment.In present embodiment In, suction inlet 714 fragment obtained is pumped to the seabed storage location selected by conveyance conduit.

The embodiment of Fig. 7 recognizes the special benefit using suction inlet 714 to obtain fragment, and described fragment includes bigger ratio The fine particle of example.In water, such fine particle effectively cannot be obtained by machine tool, but appropriately configured and operation Slurry inlet provide the effective ways of all size fragments that a kind of collection is manufactured by cutting drum 702.The receiving of fragment Obtained cover 716 auxiliary with acquisition by collection to carry out.

The embodiment of Fig. 7 includes suction inlet, but alternative embodiment (embodiment of such as Fig. 3 and Fig. 5) can save Remove such suction inlet.

The mixing cutting machine of some embodiments of the present invention can be taked to cut (overcutting), wherein cutting drum position In the front of instrument 700, and being positioned at fixing height relative to instrument 700, instrument 700 moves through bench, as shown in Figure 8 a. In some embodiments, the most as shown in Figure 8 b, mixing cutting machine can cut the side of (plunge cutting) with cut-in type Formula uses, and wherein during cutting, machine is fixing, and cutting drum declines along crag while cutting crag, until The height of about 4 meters, and reach the approximately half of depth of cut of cutting drum diameter.After the most so cut-in type cutting, Machine moves forward in depth of cut, carries out cut-in type cutting again.

It should be appreciated that particular term used herein may be equivalent in meaning with other terms, they are comparably Describing the present invention, therefore scope of the present application is not by any this synon restriction.Such as, undersea mining instrument is also referred to as Subsea machine, production support ship is also referred to as ground ship and/or ground installation, and Ore can equally or be alternatively referred to as rock Stone, solidification deposit, uncured deposit, soil, seabed material, mining can include cutting, excavates or remove material.

It will be understood by those of skill in the art that in the premise without departing substantially from broadly described the spirit and scope of the present invention Under, as specific embodiment, the present invention can be carried out various change and/or change.Therefore, embodiments described herein Consider it should is all exemplary rather than restrictive in all its bearings.

Claims (17)

1. a seabed mixing mining tool, for manufacturing the fragment of seafloor bench, described mixing mining tool includes:

Crawler-type mobile system, described crawler-type mobile system makes described mixing mining tool move through seafloor bench；

Power and control interface, described power and control interface receive the power from surface source and control signal；

Drum-type cutting machine, described drum-type cutting machine is used for cutting bench；

Being adjacent to the sizing grill of described drum-type cutting machine, described sizing grill is for sieving by described drum-type cutting machine system The fragment made；And

Close to slurry inlet and the shurry pump system of described drum-type cutting machine, described slurry inlet is configured to from described screening The fragment of the neighbouring acquisition slip form of grid,

Wherein, described shurry pump system is configured to via suitable conveyance conduit, slip is pumped to seabed storage location.

Instrument the most according to claim 1, wherein, described shurry pump system is configured to material pulp pumping to described instrument Used the side in path that maybe will use.

Instrument the most according to any one of claim 1 to 2, farther includes collection and obtains cover, and described collection obtains cover and partly wraps Enclose described cutting drum, to improve described shurry pump system to the receiving of fragment and collection.

Instrument the most according to any one of claim 1 to 2, wherein, described sizing grill rolls by utilizing described cut Cylinder pulverizes size and sieves fragment more than grid and the granule of the spacing of cylinder.

Instrument the most according to any one of claim 1 to 2, wherein, described cutting drum is installed on slider assembly, from And allow cylinder to regain and variable depth of cut.

Instrument the most according to claim 5, wherein, described sizing grill is installed on described slider assembly.

Instrument the most according to any one of claim 1 to 2, wherein, the width of cylinder cutting is more than the width of machine track Degree.

Instrument the most according to any one of claim 1 to 2, farther includes suction inlet, and described suction inlet is from described sieve Lattice grid obtain fragment.

Instrument the most according to claim 8, farther includes the shovel immediately preceding described drum-type cutting machine rear, described shovel Fragment is made to separate with sea bed.

Instrument the most according to claim 9, farther includes to be positioned at one or more augers of described shovel, described Auger promotes the fragment in described shovel towards described suction inlet.

The method of 11. 1 kinds of fragments manufacturing seafloor bench, described method includes:

Mixing mining tool in seabed receives the power from surface source and control signal；

Described seabed mixing mining tool moves through described seafloor bench；

The drum-type cutting machine of described seabed mixing mining tool cuts described bench, and described drum-type cutting machine has adjacent with it Near sizing grill, the fragment manufactured by described drum-type cutting machine for screening,

Utilize broken from the neighbouring acquisition of described sizing grill close to slurry inlet and the shurry pump system of described drum-type cutting machine Block, described fragment is slip form；And

Utilize shurry pump system that via suitable conveyance conduit, slip is pumped to seabed storage location,

Described mixing mining tool includes that crawler-type mobile system, described crawler-type mobile system make described mixing mining tool move Dynamic through described seafloor bench.

12. methods according to claim 11, wherein, when the thickness of material to be obtained is more than the height of bench, institute Stating mixing mining tool to pass through repeatedly to move the multilamellar bench removing described material, the height of described bench is mixed by described seabed The depth of cut of mining tool limits.

13. methods according to claim 12, wherein, in the most mobile, utilize the suction of described mixing mining tool Mouth is collected by the most mobile fragment manufactured of described seabed mixing mining tool.

14. according to the method according to any one of claim 11 to 13, and wherein, described seabed mixing mining tool is by along one Individual or multiple path round-trip move through the surface of described bench and substantially cut whole bench, at relevant sub sea location Described cutting path is optimized by existing specific bench size and bench shape, so that the Ore acquisition rate of described bench Maximize.

15. according to the method according to any one of claim 11 to 13, and wherein, described drum-type cutting machine is positioned at described instrument Front, the mistake carrying out described bench is cut.

16. according to the method according to any one of claim 11 to 13, and wherein, described drum-type cutting machine is positioned at described instrument Rear, carry out the undercutting of described bench.

17. according to the method according to any one of claim 11 to 13, and wherein, described drum-type cutting machine is positioned at described instrument Front, carry out described bench cut-in type cutting.