CN106545341A - A kind of deep-sea mining method and device - Google Patents
A kind of deep-sea mining method and device Download PDFInfo
- Publication number
- CN106545341A CN106545341A CN201610900975.9A CN201610900975A CN106545341A CN 106545341 A CN106545341 A CN 106545341A CN 201610900975 A CN201610900975 A CN 201610900975A CN 106545341 A CN106545341 A CN 106545341A
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- Prior art keywords
- ore
- sand
- tailings
- delivery outlet
- deep
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C50/00—Obtaining minerals from underwater, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B11/00—Feed or discharge devices integral with washing or wet-separating equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
Abstract
The invention discloses a kind of deep-sea mining method and device, integrate mining and ore dressing, sand pump on hull is drawn into the raw ore sand in seabed in the crude ore bin of hull, then with can vibration screen removing foreign matter, washed ore is selected with magnetic separator again, washed ore is directly sent on cargo ship by conveying worm and belt conveyor, and CHARACTERISTICS OF TAILINGS SAND then is pumped into being backfilled away from the seabed of mining area on the spot with tailings.The present invention is simple for the process of mine tailing, bad impact will not be caused to environment, and substantial amounts of transport power can be saved to reduce mining cost, as magnetic separator adopts string configuration, therefore abundant, accurate ore dressing can be carried out to raw ore sand, be effectively prevented from the waste of resource.
Description
Technical field
The present invention relates to mining technique field, more particularly, to a kind of mining methods of the raw ore sand that iron content is gathered at deep-sea
And corresponding Deep-ocean Mining Equipment.
Background technology
With the day by day reduction of landing field mineral resources, people start sight is turned to the sea for containing abundant mineral resources
Ocean, in some areas, it has been found that substantial amounts of Seashore Placer Deposits, importantly titanium-containing magnet ore deposit, at present, common mining mode
It is that the ore in sand form in seabed is drawn into by mining platform or mining by a marine mining platform or mining dredger sand pump
On ship, then the raw ore sand for collecting is transported on the cargo ship of transhipment with corresponding Pulp pump again, cargo ship is by raw ore sand
The ore dressing plant for being transported to land carries out ore dressing so as to form the washed ore that can be used for smelting.For example, it is a kind of in Chinese patent text
Disclosed " deep-sea collecting and distributing type mining system " is presented, notification number is CN1065191C, and the system includes collecting machine, delivery pipe, water
Upper ship or pier, the upper end of delivery pipe are connected with waterborne vessel or pier, and lower end is provided with middle roll-over and stretches in water
Away from ocean floor certain altitude, it is split type between collecting machine and delivery pipe, collecting machine is self-powered and mobile devices, buoyancy adjustment are filled
Put, seabed surface is suspended in by each predetermined route Ji Kuang.
However, existing ocean mining method there are the following problems：As mining and ore dressing are carried out where difference, because
And not only waste substantial amounts of transport power, cause cost containing a large amount of useless CHARACTERISTICS OF TAILINGS SANDs in the raw ore sand transported by cargo ship
Increase, and remaining CHARACTERISTICS OF TAILINGS SAND also needs transhipment again to process after ore dressing, thus cost is further increased, and at CHARACTERISTICS OF TAILINGS SAND
Reason is improper will also to cause more serious environmental problem.
Additionally, generally needing to use magnetic separator in existing ore dressing program, its ultimate principle is as follows：Raw ore sand is transported to
The inside of one rotation has the drum overhead field regions of high-intensity magnetic field, has magnetic iron ore and is attracted to cylinder table
Face, and nonmagnetic ore in sand form then will not be adsorbed by cylinder and directly be thrown away by cylinder, with the rotation of cylinder, iron ore reaches rolling
Cylinder non-magnetic place and be pulled out away from, so as to realize the screening and separation of iron ore.For example, one kind is open in Chinese patent literature
" Iron-titanium ore magnetic separator ", publication No. is CN103447149A, including frame, magnetic separation mechanism and feed hopper；Magnetic separation mechanism includes
Titanium selecting device, ferrotitanium sorting unit, select titanium motor and ferrotitanium sorting motor；Titanium selecting device is by selecting titanium Motor drive and downside
It is provided with ilmenite concentrate discharge bucket, titanium ore and reclaims hopper and mine tailing discharge bucket；Ilmenite concentrate discharge bucket and titanium ore reclaim the charging aperture of hopper
Side is provided with ilmenite concentrate precise regulator；The charging aperture side of mine tailing discharge bucket is provided with mine tailing precise regulator；Ferrotitanium sorting dress
Put and Motor drive is sorted and including first, second ferrotitanium sorting unit by ferrotitanium；It is arranged on the downside of the first ferrotitanium sorting unit
Titanium discharging in ore bucket side and the ferrum that is arranged on the downside of the second ferrotitanium sorting unit under ore bucket and ferrotitanium powder under ferrotitanium mixture
Bucket and iron powder discharge bucket side are equipped with ferrotitanium sharpness of separation actuator, and the device can be screened to mineral and be separated.
But there are problems that ore dressing is not accurate enough with magnetic separator ore dressing, as the iron ore of various grades in raw ore sand is
Distribution gradient, therefore, the magnetic field intensity in cylinder needs to arrange a reasonable value, to adsorb such as grade in percentage
More than 30 iron ore.Due to the percussion of raw ore sand, therefore, fall cylinder surface grade slightly above 30 percent
Iron ore very likely directly thrown away by cylinder because of percussion, so as to cause the waste of resource.If improved in cylinder
Magnetic field intensity, then be mixed with making the washed ore selected a part of grade less than 30 percent iron ore.
The content of the invention
It is an object of the present invention to the transport power solved existing for existing deep-sea mining mode wastes big, tailings glass
A kind of troublesome problem, there is provided deep-sea mining method and device, its tailings glass is simple, bad shadow will not be caused to environment
Ring, and substantial amounts of transport power can be saved to reduce mining cost.
Another object of the present invention be in order to solve in deep-sea mining with the ore dressing existing for magnetic separator ore dressing it is inaccurate,
Easily cause the problem of the wasting of resources, there is provided a kind of deep-sea mining method and device, abundant, accurate choosing can be carried out to raw ore sand
Ore deposit, is effectively prevented from the waste of resource.
To achieve these goals, the present invention is employed the following technical solutions：A kind of deep-sea mining method, whole mining process
Completed by the deep-sea mining floating platform with ore-dressing plant, the deep-sea mining floating platform has the raw ore of storage raw ore sand
Storehouse, the tailings storehouse for storing CHARACTERISTICS OF TAILINGS SAND, comprise the steps：
A. the raw ore sand in mining area seabed is drawn into into deep-sea mining together with sea water with by diesel-driven sand pump first
In the crude ore bin of floating platform；
B. the raw ore sand in crude ore bin is drawn into into an inclination cloth together with sea water with the Pulp pump by motor-driven again
Put can on vibration screen, be mixed in raw ore sand the impurity such as the larger reef of profile, rubbish along can vibration screen tumble, and lead to
CHARACTERISTICS OF TAILINGS SAND collection conduit is crossed in tailings storehouse, by can the raw ore sand of vibration screen mesh then pass through a Ji Kuang together with sea water
Funnel is entered into, the magnetic separator have a washed ore delivery outlet and one and
The CHARACTERISTICS OF TAILINGS SAND delivery outlet of CHARACTERISTICS OF TAILINGS SAND collection conduit connection, in raw ore sand, the relatively low CHARACTERISTICS OF TAILINGS SAND of grade is separated, and together with sea
Water is entered in tailings storehouse by CHARACTERISTICS OF TAILINGS SAND delivery outlet, and the higher washed ore of grade is then defeated from washed ore delivery outlet in raw ore sand
Go out；
C. the washed ore containing more sea water from the output of washed ore delivery outlet is sent to a belt by a conveying worm
On conveyer, after washed ore is squeezed in conveying worm, sea water is extruded, and washed ore is then transported to by belt conveyor
It is parked on the washed ore cargo ship of deep-sea mining floating platform side；
D. CHARACTERISTICS OF TAILINGS SAND is extracted from tailings storehouse with tailings pump, and pipeline is backfilled by mine tailing and be backfilled to the seabed for keeping away exploiting field,
The mine tailing backfill pipeline is connected with ball float near one section of compartment of terrain of tailings pump, so that this section of mine tailing backfill pipeline is suspended in sea
Face.
The mining methods of the present invention are completed on deep-sea mining floating platform from extracting seabed raw ore sand, to going the removal of impurity
Roughly select, sub-argument go out high-grade washed ore it is selected, and CHARACTERISTICS OF TAILINGS SAND backfill whole programs, drastically increase mining
Efficiency, reduces the cost of transportation and CHARACTERISTICS OF TAILINGS SAND processing cost in mining process.Particularly, one be in tilted layout can vibrosieve
Net easily can be continuously separated out the impurity such as reef from raw ore sand, and conveying worm can be squeezed while washed ore is conveyed
Go out the large quantity of moisture that washed ore contains, so as to be conducive to belt conveyor that washed ore is transported to corresponding washed ore cargo ship
On, and reduce the load of washed ore cargo ship.Mine tailing backfill pipeline is then suspended in sea by ball float, so as to be conducive to easily
Observation, positioning mine tailing backfill the position of pipeline, make CHARACTERISTICS OF TAILINGS SAND be backfilling into suitable sub-sea location.
A kind of deep-sea mining floating platform, including hull and sand pump with crude ore bin and tailings storehouse, sand pump
Sand export is connected with crude ore bin by pipeline, and the tailings of the magnetic separator and extraction CHARACTERISTICS OF TAILINGS SAND for ore dressing is additionally provided with hull
Pump, the magnetic separator have a CHARACTERISTICS OF TAILINGS SAND delivery outlet and a washed ore delivery outlet, and washed ore delivery outlet connects a concentrate
Sand conveyer device, CHARACTERISTICS OF TAILINGS SAND delivery outlet are connected with tailings storehouse by CHARACTERISTICS OF TAILINGS SAND collection conduit, and the suction sand mouth of tailings pump passes through pipeline
It is connected with the bottom in tailings storehouse, one end that the sand export of tailings pump backfills pipeline with the mine tailing for being suspended in sea is connected, and mine tailing is returned
The other end for filling out pipeline extends to the seabed away from mining area.
The deep-sea mining floating platform of the present invention integrates mining and ore dressing, first with sand pump by the original in mining area seabed
Ore in sand form is extracted in crude ore bin, is then separated washed ore therein with magnetic separator, and so, washed ore can pass through washed ore
Conveyer device is transported on corresponding cargo ship and transports, and the CHARACTERISTICS OF TAILINGS SAND separated by magnetic separator then can use tailings pump to pass through tail
Ore deposit backfill pipeline is backfilling into the seabed away from mining area on the spot, so as to the transport power that can greatly reduce cargo ship is wasted, and greatly
The earth simplifies the processing routine of CHARACTERISTICS OF TAILINGS SAND, reduces the processing cost of CHARACTERISTICS OF TAILINGS SAND.Further, since the mine tailing backfill pipe of conveying CHARACTERISTICS OF TAILINGS SAND
Road is suspended on sea, therefore, it is easy to convey the determination of CHARACTERISTICS OF TAILINGS SAND position.
Preferably, be provided with above magnetic separator can vibration screen, can vibration screen be in tilted layout and be connected with and shake
Galvanic electricity machine, can be provided with opening up collection ore deposit funnel below vibration screen, and the outlet for collecting ore deposit its lower portion is entered positioned at magnetic separator
Above material mouth, collection sand hopper can be provided with below the relatively low side of vibration screen, collect the outlet CHARACTERISTICS OF TAILINGS SAND collecting pipe of sand hopper
Road.
Arrange above the magnetic separator can vibration screen, so, raw ore sand is first carried out before ore dressing is carried out into magnetic separator slightly
Choosing, be mixed in the impurity such as bulk reef in raw ore sand, rubbish cannot pass through can vibration screen mesh, with can vibration screen
Shake and tumble in collection sand hopper, and entered in tailings storehouse by CHARACTERISTICS OF TAILINGS SAND collection conduit.And the tiny iron ore of granule is then saturating
Cross can vibration screen mesh and fall into lower section collection ore deposit funnel in, and by collect ore deposit its lower portion outlet enter into magnetic separator
Ore dressing is carried out inside, so as to be conducive to improving the beneficiating efficiency of magnetic separator.By vibrating motor make can vibration screen formed vibrations, can
Significantly increase the efficiency of its screening, it is to avoid iron ore is sticked to.
Preferably, it is described can compartment of terrain is provided with some horizontally disposed thrust shelves bars from low to high on the upside of vibration screen,
So, a kind of stop can be formed to tiny iron ore, it is to avoid iron ore because be unable to fast strikethrough can vibration screen mesh and
In company with impurity along can vibration screen roll down to collect in sand hopper, and the larger impurity of overall dimensions can then climb over thrust shelves bar and
Roll down to collect in sand hopper.
Preferably, the magnetic separator includes an ore dressing elongated slot, vertical demarcation strip in ore dressing elongated slot, is laterally provided with,
Ore dressing elongated slot is separated into demarcation strip the ore dressing area of the magnetic separation machine inlet and opposite side of side opening upwards, demarcation strip and choosing
Sand gap was provided between the bottom surface of chief of a pit's groove, the swinging transmission arranged along its length was provided with the ore dressing area of ore dressing elongated slot
Band, the washed ore delivery outlet are located at the bottom surface in ore dressing area away from demarcation strip one end, and CHARACTERISTICS OF TAILINGS SAND delivery outlet is then arranged on ore dressing area
Locate between bottom surface washed ore delivery outlet and demarcation strip, swinging conveyer belt is provided with Magnet in the long groove bottom side of ore dressing, institute
State Magnet and extend arrangement to correspondence washed ore delivery outlet near the side of demarcation strip by near demarcation strip one end.
What the magnetic separator of prior art was used for ore dressing is the cylinder of a rotation, and Magnet, original to be selected are provided with cylinder
Ore in sand form is then fallen directly on cylinder, that is to say, that all of raw ore sand is first fallen on cylinder.Due to falling cylinder
On raw ore sand easily cause accumulation, make thickness thicker, raw ore sand and the time of contact of cylinder and contact apart from short, and fall
Raw ore sand on cylinder is easily affected by the impact of follow-up raw ore sand, so as to be difficult to sufficient ore dressing, is being separated
CHARACTERISTICS OF TAILINGS SAND in be easily mixed with more useful washed ore, and it is low that more grade is easily mixed in the washed ore being selected
CHARACTERISTICS OF TAILINGS SAND, reduces the quality of washed ore.Be used for ore dressing in the magnetic separator of the present invention is then that an oblong swinging is passed
Band is sent, and raw ore sand is fallen in the magnetic separation machine inlet of an ore dressing elongated slot, so, on the one hand can be effectively prevented from raw ore
Impact of the sand to the swinging conveyer belt of ore dressing, excessively sand gap of the raw ore sand in magnetic separation machine inlet by demarcation strip bottom
Stably enter afterwards in the ore dressing area of ore dressing elongated slot, now, swinging conveyer belt in revolution on the one hand drive raw ore sand to
One side shifting of CHARACTERISTICS OF TAILINGS SAND delivery outlet and washed ore delivery outlet, while grade is met the requirements by the magnetic attraction using its inner magnet
Iron ore be adsorbed onto swinging transmission belt surface.The relatively low iron ore of grade is when CHARACTERISTICS OF TAILINGS SAND delivery outlet position is reached by weight
The effect of power and fall into CHARACTERISTICS OF TAILINGS SAND delivery outlet, and adsorb on swinging conveyer belt the higher iron ore of grade reach washed ore
During delivery outlet position, due to not having Magnet inside swinging conveyer belt, thus iron ore loses magnetic attraction and falls into the essence of lower section
Ore in sand form delivery outlet becomes washed ore, so as to realize the selected of iron ore.By reasonably controlling sand gap and ore dressing area
Length, just can easily control the thickness of the raw ore sand in the movement of ore dressing area bottom surface, so as to be conducive to raw ore sand and swinging to pass
Send and have being fully contacted for a long period between band, it can be ensured that completely absorption of the swinging conveyer belt to high grade iron ore in sand form.
As magnetic attraction need to only overcome the gravity of iron ore itself, thus it is easy to the accurate control of magnetic attraction, and high-grade iron ore
It is merely to be adsorbed onto on swinging conveyer belt by magnetic attraction, therefore can be effectively prevented from wherein carrying the relatively low iron mine of grade secretly
Sand, is significantly increased the quality of the washed ore selected.Particularly, by the length and tail in reasonably setting ore dressing area
Spacing between ore in sand form delivery outlet and washed ore delivery outlet, you can be easily able to washed ore and CHARACTERISTICS OF TAILINGS SAND abundant and accurate
Separate.
Preferably, the spaced surface of the swinging conveyer belt be provided with some row's projections, between adjacent two rows projection
Dislocation arrangement.
Projection is conducive to swinging conveyer belt to promote raw ore sand to move along the bottom surface of ore dressing elongated slot, meanwhile, can be to movement
In raw ore sand play an agitaion, enable the higher iron ore of grade in raw ore sand to be fully adsorbed to swinging biography
Send the surface of band, it is to avoid waste.
Preferably, the ore dressing elongated slot was provided with the water spout in sand gap in the bottom of magnetic separation machine inlet.
The current that water spout sprays can promote raw ore sand to move, while avoiding the projection for transmitting belt surface with swinging from producing
Interfere.
Preferably, the washed ore conveyer device includes a conveying worm, conveying worm includes barrel, arranges
Rotating shaft in barrel, rotating shaft are provided with helical blade, and one end of rotating shaft is associated with motor by drive mechanism, barrel
One end be provided with material input, the other end is provided with material delivery outlet, and the input of a belt conveyor is located at material delivery outlet
Lower section, the pitch of helical blade progressively diminishes to material delivery outlet one end by material input one end, the material of conveying worm
Cylinder is provided with water outlet slotted eye.
In prior art, be typically with belt conveyor to convey washed ore, it is of the invention then in belt conveyor
Front end arranges a conveying worm again, and the pitch of helical blade therein by material input one end to material delivery outlet one
End progressively diminishes, and such conveying worm can play a squeezing action while washed ore is conveyed to washed ore, so as to incite somebody to action
Moisture extrusion in washed ore, not only improves the conveying of belt conveyor, while the weight of washed ore correspondingly can be mitigated, improves
The efficiency of cargo ship.
Preferably, the rotating shaft of the conveying worm is coaxially provided with support holes in the one end away from motor, turn
The periphery of axle is provided with the fumarole of some insertion support holes, and the opening of support holes is fitted with support shaft, sets in support shaft
There is passage, passage one end is connected with support holes, and the other end is connected with compressed air source by compression gas pipe.
Operationally, compressed air can pass through the fumarole of passage, support holes from rotating shaft and spray conveying worm, from
And the concentrate sand blast being compacted in barrel can be loosened, it is to avoid washed ore in barrel silts up.
Preferably, a gap is connected with the compression gas pipe opens and closes valve, the gap opens and closes valve includes a circle
Rotatable valve element and it is used for driving the buncher of valve element, the side of valve body located at valve body one end in the valve body of cylindricality, valve body
Wall is provided with the air inlet and gas outlet for connecting with compression gas pipe respectively, is provided with and can be respectively communicated with air inlet and gas outlet in valve element
Compressed air channel.
When buncher is rotated, the compressed air channel of valve element briefly connects air inlet and gas outlet, to make pressure
Contracting trachea forms pulsed and turns on, and then the air-flow of pulsed is produced at the fumarole of rotating shaft, can both reduce compressed air
Consumption, can form a kind of percussion of pulsed again, be conducive to the loosening of washed ore to washed ore.
Therefore, the present invention has the advantages that：Tailings glass is simple, bad impact will not be caused to environment, and
And substantial amounts of transport power can be saved to reduce mining cost, abundant, accurate ore dressing can be carried out to raw ore sand, resource is effectively prevented from
Waste.
Description of the drawings
Fig. 1 is a kind of structural representation of deep-sea mining floating platform.
Fig. 2 is the flow chart of the present invention.
Fig. 3 is the structural representation of magnetic separator in the present invention.
Fig. 4 is the structural representation of conveying worm and connected gap keying valve in the present invention.
In figure：1st, hull 11, crude ore bin 12, tailings storehouse 2, sand pump 3, the output of magnetic separator 31, CHARACTERISTICS OF TAILINGS SAND
Mouth 32, washed ore delivery outlet 33, ore dressing elongated slot 34, excessively demarcation strip 341, sand gap 35, magnetic separation machine inlet
36th, ore dressing area 37, swinging conveyer belt 371, projection 38, Magnet 39, water spout 4, tailings pump 5, CHARACTERISTICS OF TAILINGS SAND
Collection conduit 6, mine tailing backfill pipeline 61, ball float 7, can vibration screen 71, thrust shelves bar 8, Pulp pump 81, collection
Ore deposit funnel 82, collection sand hopper 9, conveying worm 90, belt conveyor 91, barrel 92, rotating shaft 921, supporting
Hole 922, fumarole 93, material input 94, material delivery outlet 95, support shaft 951, passage 96, gap
Open and close valve 961, valve body 962, valve element 963, buncher 964, air inlet 965, gas outlet 966, compression sky
Gas passage.
Specific embodiment
The present invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1 and Figure 2, a kind of deep-sea mining floating platform, which is mainly used in collection and choosing to seabed raw ore sand
Ore deposit, the deep-sea mining floating platform include the hull 1 for floating over sea, and the bottom separation in hull is provided with crude ore bin 11 and tail
Sand storehouse 12, and existing mining dredger is analogously, the raw ore sand in seabed is extracted by a powerful sand pump 2, and this takes out sand
Pump is used as power with diesel engine, and the suction sand mouth of sand pump is connected to seabed by pipeline, and the sand export of sand pump then passes through pipeline
Crude ore bin is connected to, so that raw ore sand is extracted to crude ore bin.
Unlike the prior art, the present invention is directly provided for the magnetic separator 3 of ore dressing, the magnetic separation equipment on hull
There are a CHARACTERISTICS OF TAILINGS SAND delivery outlet 31, an and washed ore delivery outlet 32, the raw ore sand in crude ore bin passes through corresponding Pulp pump
Magnetic separator is sent into, raw ore sand isolates the washed ore and discarded CHARACTERISTICS OF TAILINGS SAND that can be used to smelting, washed ore after magnetic separator
Export from washed ore delivery outlet, the ship for being docked in deep-sea mining floating platform is transported to by a washed ore conveyer device then
Cargo ship on body side（Not shown in figure）On.And the CHARACTERISTICS OF TAILINGS SAND separated then is exported from CHARACTERISTICS OF TAILINGS SAND delivery outlet, and pass through
The CHARACTERISTICS OF TAILINGS SAND collection conduit 5 being connected with tailings storehouse is delivered to tailings storehouse.As the bottom in tailings storehouse is by pipeline and a tailings
What the suction sand mouth of pump 4 was connected, therefore, the CHARACTERISTICS OF TAILINGS SAND in tailings storehouse can be extracted and be managed by mine tailing backfill by tailings pump in real time
Road 6 is delivered to the seabed away from mining area, so as to realize the backfill on the spot of CHARACTERISTICS OF TAILINGS SAND, to be greatly simplified the process of CHARACTERISTICS OF TAILINGS SAND
Difficulty, and reduce corresponding mining cost.In order to avoid springing up for sea water makes mine tailing backfill pipeline deviation position, we can be in tail
Connect some ball floats 61 near one section of compartment of terrain of tailings pump on ore deposit backfill pipeline so that its suspension is across the sea, so as to
When observe and control its position and state, it is ensured that CHARACTERISTICS OF TAILINGS SAND can be backfilled to the seabed back filled region away from mining area smoothly, exactly
Domain.
In order to improve the beneficiating efficiency of magnetic separator, we first can carry out a removal before magnetic separator ore dressing to raw ore sand
The impurity such as reef, rubbish are roughly selected.Specifically, we can magnetic separator top arrange one be in tilted layout can vibration screen
7, certainly, this can need to connect a vibrating motor on vibration screen, and can vibration screen mesh number, it is ensured that in raw ore sand
Iron ore can pass through.The raw ore sand that impurity is mixed with crude ore bin can be extracted by the Pulp pump 8 of a motor drive
To can vibration screen higher side top, can vibration screen vibrate under the drive of vibrating motor, now, granule is less
Be directed through by iron ore and the sea water that is blended in iron ore can vibration screen, and the larger reef of granule, rubbish etc.
Impurity then along can vibration screen tumble downwards.In order to be collected to iron ore and impurity respectively, we can be can vibrosieve
The lower section of net arranges an opening up collection ore deposit funnel 81, and the outlet for collecting ore deposit its lower portion is then located just at magnetic separator charging
Above mouthful.So, through can vibration screen iron ore and sea water collected ore deposit collection funnel after can be directly entered magnetic separator and carry out
Synchronous ore dressing, to improve the efficiency of whole mining program.In addition, it would be desirable to can the relatively low side of vibration screen lower section arrange
One collection sand hopper 82, the outlet of the collection sand hopper are then connected in CHARACTERISTICS OF TAILINGS SAND collection conduit.So, along can vibration screen to
Under collected by collection sand hopper by the impurity that tumbles, and entered in tailings storehouse by CHARACTERISTICS OF TAILINGS SAND collection conduit.
In order to be conducive to can separation of the vibration screen to impurity, we can also be can compartment of terrain from low to high on vibration screen
Some horizontally disposed thrust shelves bars 71 are set, so, fall can be on vibration screen raw ore sand in impurity by thrust
Soon would not roll down to collect in sand hopper after the stop of shelves bar, so as to can suitably increase impurity can be on vibration screen
The time of staying, so that the iron ore sticked on impurity is sufficiently separated with impurity because of vibration, reduce the waste of iron ore.
Certainly, the height of thrust shelves bar should be suitable, cannot be tumbled with avoiding impurity from being blocked fully.
Additionally, in order to increase preciseness of separation during magnetic separator ore dressing, as shown in figure 3, the magnetic separator of the present invention includes one
Individual rectangular ore dressing elongated slot 33, laterally arranges one piece of vertical demarcation strip 34 in ore dressing elongated slot, so that be located at separating
The ore dressing elongated slot of plate side forms the magnetic separation machine inlet 35 of opening upwards, and is located at the ore dressing elongated slot of demarcation strip opposite side then shape
Into area is larger, rectangular ore dressing area 36, certainly, need to leave between sand between the bottom surface of demarcation strip and ore dressing elongated slot
Gap 341, so that the raw ore sand entered in magnetic separation machine inlet can enter into ore dressing area by the sand gap of crossing of demarcation strip bottom
It is interior.In addition, it would be desirable to which the swinging conveyer belt 37 arranged along its length, swinging are set in the ore dressing area of ore dressing elongated slot
The distance between conveyer belt and ore dressing area bottom surface should be less than the height in sand gap, and the washed ore delivery outlet 32 of magnetic separator is located at
Then it is arranged on close by washed ore delivery outlet away from demarcation strip side, CHARACTERISTICS OF TAILINGS SAND delivery outlet 31 on the bottom surface in ore dressing elongated slot ore dressing area
The side of demarcation strip, should leave gap between CHARACTERISTICS OF TAILINGS SAND delivery outlet and washed ore delivery outlet, so as to washed ore and CHARACTERISTICS OF TAILINGS SAND
It is precisely separating.Swinging conveyer belt in the long groove bottom side of ore dressing is provided for adsorbing the Magnet of more high-grade iron ore
38, Magnet extends arrangement to correspondence washed ore delivery outlet near the side of demarcation strip by near demarcation strip one end.So, enter
The raw ore sand for being entrained with sea water in magnetic separation machine inlet stably enters choosing behind the sand gap excessively of demarcation strip bottom
In the ore dressing area of chief of a pit's groove, and contact with swinging conveyer belt.Now, on the one hand the swinging conveyer belt in rotation drives former
Ore in sand form is moved towards CHARACTERISTICS OF TAILINGS SAND delivery outlet and washed ore delivery outlet one end, while grade is accorded with by the magnetic attraction using its inner magnet
Close the iron ore for requiring and be adsorbed onto swinging transmission belt surface.The relatively low iron ore of grade is arrived under the drive of swinging conveyer belt
Falling into CHARACTERISTICS OF TAILINGS SAND delivery outlet during up to CHARACTERISTICS OF TAILINGS SAND delivery outlet position by the effect of gravity becomes CHARACTERISTICS OF TAILINGS SAND, and adsorbs in swinging
On conveyer belt the higher iron ore of grade reach washed ore delivery outlet position when, due to there is no magnetic inside swinging conveyer belt
Ferrum, thus iron ore loses magnetic attraction and falls as the washed ore delivery outlet of lower section becomes washed ore, so as to realize the essence of raw ore sand
Choosing.It is understood that we can suitably increase the length in ore dressing area, CHARACTERISTICS OF TAILINGS SAND delivery outlet and washed ore delivery outlet is enable to use up
Amount is separated, so that it is guaranteed that efficiently separating between washed ore and CHARACTERISTICS OF TAILINGS SAND.In addition, we can suitably control the mistake of demarcation strip
Sand clearance height, to control the thickness of the raw ore sand in the movement of ore dressing area bottom surface, makes between raw ore sand and swinging conveyer belt
There is being fully contacted for a long period, it is ensured that the absorption completely of high grade iron ore in sand form.
In order to be conducive to promotion of the swinging conveyer belt to raw ore sand, we can also be in the spaced surface of swinging conveyer belt
Ground arranges some row's projections 371, and makes dislocation arrangement between adjacent two rows projection.So, on the one hand projection is conducive to revolution
Formula conveyer belt promotes raw ore sand to move along the bottom surface of ore dressing elongated slot, meanwhile, an agitation can be played to the raw ore sand in movement
Effect, enables the higher iron ore of grade in raw ore sand to be fully adsorbed to the surface of swinging conveyer belt, it is to avoid to waste.Enter
One step ground, we can also arrange direction away from the bottom of demarcation strip side in the ore dressing elongated slot in magnetic separator charging aperture and cross sand
The water spout 39 in gap.So, when magnetic separator works, water spout can spray high-velocity flow, so as to auxiliary pushing magnetic separator enters
Raw ore sand in material mouth is entered in ore dressing area.
The washed ore conveyer device of the present invention includes a conveying worm 9 and a belt conveyor being attached thereto
90, as shown in figure 4, conveying worm therein includes barrel 91, is arranged on the interior rotating shaft 92 with helical blade of barrel, rotating shaft
One end be associated with motor by drive mechanism, on barrel near motor one end arrange material input 93,
The other end then arranges material delivery outlet 94.Conveying worm operationally, drives axis of rotation by motor, spiral in rotating shaft
Blade can promote washed ore to move forward, as conveying worm has squeezing action when washed ore is fed forward, therefore
Moisture in extrudable washed ore, not only improves the conveying of follow-up belt conveyor, while mitigate the weight of washed ore, after raising
The efficiency of continuous cargo ship.Certainly, it would be desirable to which corresponding water outlet slotted eye is set on the barrel of conveying worm, so as to washed ore
In moisture extrude from water outlet slotted eye, by control water outlet slotted eye diameter washed ore can be avoided to extrude from water outlet slotted eye.
At the same time, we can also make the pitch of helical blade progressively be diminished to material delivery outlet one end by material input one end, this
Sample, the transporting velocity of conveying worm are also progressively diminished to material delivery outlet one end by material input one end, so that concentrate
Extruding force suffered by sand is incrementally increased to material delivery outlet one end by material input one end, is conducive to moisture in washed ore
Extrusion.
Flow out from washed ore delivery outlet for the ease of washed ore, it is to avoid washed ore forms blocking in conveying worm, I
Can be coaxially disposed support holes 921 away from one end of motor in the rotating shaft of conveying worm, and in the circle of rotating shaft
The fumarole 922 of some insertion support holes is set on side face, a piece support shaft 95 of adaptation, the support shaft in the opening of support holes
Upper setting passage 951, passage one end are connected with support holes, and the other end is connected with compressed air source by compression gas pipe.This
Sample compressed air can be sprayed from fumarole after passage, support holes, and the compressed air sprayed from fumarole can make barrel
The washed ore that is inside compacted loosens, so as to avoid silting up for washed ore in barrel.In order to improve the percussion of compressed air, I
Can also connect gap on compression gas pipe and open and close valve 96, the gap opens and closes valve includes a cylindrical valve body 961, valve
There is a rotatable valve element 962 in vivo, valve body one end is provided for the buncher 963 for driving valve element, the side wall of valve body
The upper air inlet 964 that a radial direction is set, and the gas outlet of radial direction is set on the side wall of the opposite side relative with air inlet
965, air inlet is coaxially arranged with gas outlet and connects with compression gas pipe respectively, at the same time, is corresponding to air inlet, is going out in valve element
The position of QI KOU arranges the compressed air channel 966 of a radial direction, and the side of insertion valve element is distinguished at the compressed air channel two ends.
So, when buncher drives valve core rotation to make one end of compressed air channel be directed at air inlet, its other end is just aligned
Gas outlet, so as to play a part of to be respectively communicated with air inlet and gas outlet, gap now opens and closes valve in opening, and compression is empty
Gas can open and close valve by gap and spray from the fumarole high speed of rotating shaft；When valve element is rotated further, compressed air channel with
Air inlet, gas outlet dislocation, gap now open and close valve in closure state, and compressed air is cut off.So repeatedly, in rotating shaft
Compressed air is sprayed in pulsed, so as to can effectively loosen the washed ore in barrel.
The belt conveyor of the present invention should preferably adopt high angle belt conveyer conveyer, the input of belt conveyor to be located at
The lower section of the washed ore delivery outlet of conveying worm, so as to be conducive to reducing taking up room for belt conveyor, makes in hull
Washed ore is transported to after crossing the ship's side in the cargo ship berthed beside hull.
It should be noted that in the present invention can the choosing such as vibration screen, magnetic separator, conveying worm and belt conveyor
The device of ore deposit and washed ore conveying can be respectively provided with two sets, and such two sets ore-dressing plants can be while ore dressing, and two sets of Belt Conveyings
Machine then can convey washed ore to the cargo ship for being docked in hull both sides simultaneously from the ship side of hull both sides, so as to further improve
Mining efficiency.
When deep-sea mining being carried out with the deep-sea mining floating platform of the present invention, specifically include following steps：
A. the raw ore sand in mining area seabed is drawn into into deep-sea mining together with sea water with by diesel-driven sand pump first
In the crude ore bin of floating platform；
B. the raw ore sand in crude ore bin is drawn into into an inclination cloth together with sea water with the Pulp pump by motor-driven again
Put can on vibration screen, be mixed in raw ore sand the impurity such as the larger reef of profile, rubbish along can vibration screen tumble, and lead to
CHARACTERISTICS OF TAILINGS SAND collection conduit is crossed in tailings storehouse, by can the raw ore sand of vibration screen mesh then pass through a Ji Kuang together with sea water
Funnel is entered into, the magnetic separator have a washed ore delivery outlet and one and
The CHARACTERISTICS OF TAILINGS SAND delivery outlet of CHARACTERISTICS OF TAILINGS SAND collection conduit connection, in raw ore sand, the relatively low CHARACTERISTICS OF TAILINGS SAND of grade is separated, and together with sea
Water is entered in tailings storehouse by CHARACTERISTICS OF TAILINGS SAND delivery outlet, and the higher washed ore of grade is then defeated from washed ore delivery outlet in raw ore sand
Go out；
C. the washed ore containing more sea water from the output of washed ore delivery outlet is sent to a belt by a conveying worm
On conveyer, after washed ore is squeezed in conveying worm, sea water is extruded, and washed ore is then transported to by belt conveyor
It is parked on the washed ore cargo ship of deep-sea mining floating platform side；
D. CHARACTERISTICS OF TAILINGS SAND is extracted from tailings storehouse with tailings pump, and pipeline is backfilled by mine tailing and be backfilled to the seabed for keeping away exploiting field,
The mine tailing backfill pipeline is connected with ball float near one section of compartment of terrain of tailings pump, so that this section of mine tailing backfill pipeline is suspended in sea
Face, backfills the position of pipeline in order to observe and control mine tailing.
Claims (10)
1. a kind of deep-sea mining method, whole mining process are completed by the deep-sea mining floating platform with ore-dressing plant, should
Deep-sea mining floating platform has the crude ore bin of storage raw ore sand, the tailings storehouse for storing CHARACTERISTICS OF TAILINGS SAND, it is characterized in that, including such as
Lower step：
A. the raw ore sand in mining area seabed is drawn into into deep-sea mining together with sea water with by diesel-driven sand pump first
In the crude ore bin of floating platform；
B. the raw ore sand in crude ore bin is drawn into into an inclination cloth together with sea water with the Pulp pump by motor-driven again
Put can on vibration screen, be mixed in raw ore sand the impurity such as the larger reef of profile, rubbish along can vibration screen tumble, and lead to
CHARACTERISTICS OF TAILINGS SAND collection conduit is crossed in tailings storehouse, by can the raw ore sand of vibration screen mesh then pass through a Ji Kuang together with sea water
Funnel is entered into, the magnetic separator have a washed ore delivery outlet and one and
The CHARACTERISTICS OF TAILINGS SAND delivery outlet of CHARACTERISTICS OF TAILINGS SAND collection conduit connection, in raw ore sand, the relatively low CHARACTERISTICS OF TAILINGS SAND of grade is separated, and together with sea
Water is entered in tailings storehouse by CHARACTERISTICS OF TAILINGS SAND delivery outlet, and the higher washed ore of grade is then defeated from washed ore delivery outlet in raw ore sand
Go out；
C. the washed ore containing more sea water from the output of washed ore delivery outlet is sent to a belt by a conveying worm
On conveyer, after washed ore is squeezed in conveying worm, sea water is extruded, and washed ore is then transported to by belt conveyor
It is parked on the washed ore cargo ship of deep-sea mining floating platform side；
D. CHARACTERISTICS OF TAILINGS SAND is extracted from tailings storehouse with tailings pump, and pipeline is backfilled by mine tailing and be backfilled to the seabed for keeping away exploiting field,
The mine tailing backfill pipeline is connected with ball float near one section of compartment of terrain of tailings pump, so that this section of mine tailing backfill pipeline is suspended in sea
Face.
2. a kind of deep-sea mining floating platform, including hull and sand pump with crude ore bin and tailings storehouse, sand pump goes out
Sand mouth is connected with crude ore bin by pipeline, be it is characterized in that, magnetic separator and extraction CHARACTERISTICS OF TAILINGS SAND for ore dressing are additionally provided with hull
Tailings pump, the magnetic separator has a CHARACTERISTICS OF TAILINGS SAND delivery outlet and a washed ore delivery outlet, the connection of washed ore delivery outlet
One washed ore conveyer device, CHARACTERISTICS OF TAILINGS SAND delivery outlet are connected with tailings storehouse by CHARACTERISTICS OF TAILINGS SAND collection conduit, and the suction sand mouth of tailings pump leads to
Piping is connected with the bottom in tailings storehouse, and one end that the sand export of tailings pump backfills pipeline with the mine tailing for being suspended in sea is connected,
The other end of mine tailing backfill pipeline extends to the seabed away from mining area.
3. a kind of deep-sea mining floating platform according to claim 2, is characterized in that, be provided with and can shake above magnetic separator
Dynamic screen cloth, can vibration screen be in tilted layout and be connected with vibrating motor, opening up collection can be provided with below vibration screen
Ore deposit funnel, the outlet for collecting ore deposit its lower portion are located above magnetic separation machine inlet, can be provided with collection below the relatively low side of vibration screen
Sand hopper, collects the outlet CHARACTERISTICS OF TAILINGS SAND collection conduit of sand hopper.
4. a kind of deep-sea mining floating platform according to claim 3, is characterized in that, it is described can be on the upside of vibration screen by low
Some horizontally disposed thrust shelves bars are provided with to high compartment of terrain.
5. a kind of deep-sea mining floating platform according to claim 2, is characterized in that, the magnetic separator includes an ore dressing
Elongated slot, is laterally provided with vertical demarcation strip in ore dressing elongated slot, ore dressing elongated slot is separated into demarcation strip the magnetic of side opening upwards
Sand gap was provided between the bottom surface for selecting the ore dressing area of machine inlet and opposite side, demarcation strip and ore dressing elongated slot, it is long in ore dressing
The ore dressing area of groove is provided with the swinging conveyer belt arranged along its length, and the bottom surface that the washed ore delivery outlet is located at ore dressing area is remote
From demarcation strip one end, CHARACTERISTICS OF TAILINGS SAND delivery outlet is then arranged between ore dressing area bottom surface washed ore delivery outlet and demarcation strip to be located, swinging
Conveyer belt is provided with Magnet in the long groove bottom side of ore dressing, and the Magnet extends arrangement to correspondence essence by near demarcation strip one end
Near the side of demarcation strip on ore in sand form delivery outlet.
6. a kind of deep-sea mining floating platform according to claim 5, is characterized in that, the surface of the swinging conveyer belt
Compartment of terrain is provided with some row's projections, dislocation arrangement between adjacent two rows projection.
7. a kind of deep-sea mining floating platform according to claim 4, is characterized in that, the ore dressing elongated slot enters in magnetic separator
The bottom of material mouth was provided with the water spout in sand gap.
8. a kind of deep-sea mining floating platform according to Claims 2 or 3 or 4 or 5 or 6 or 7, is characterized in that, the essence
Ore in sand form conveyer device includes a conveying worm, and conveying worm includes barrel, the rotating shaft being arranged in barrel, sets in rotating shaft
The one end for having helical blade, rotating shaft is associated with motor by drive mechanism, and one end of barrel is provided with material input, separately
One end is provided with material delivery outlet, and the input of a belt conveyor is located at the lower section of material delivery outlet, the pitch of helical blade by
Material input one end progressively diminishes to material delivery outlet one end, and the barrel of conveying worm is provided with water outlet slotted eye.
9. a kind of deep-sea mining floating platform according to claim 8, is characterized in that, the rotating shaft of the conveying worm exists
Support holes are provided with coaxially away from one end of motor, the periphery of rotating shaft is provided with the fumarole of some insertion support holes,
The opening of support holes is fitted with support shaft, and support shaft is provided with passage, and passage one end is connected with support holes, and the other end leads to
Overcompression trachea is connected with compressed air source.
10. a kind of deep-sea mining floating platform according to claim 9, is characterized in that, be connected with the compression gas pipe
One gap opens and closes valve, and the gap opens and closes valve to be included in a cylindrical valve body, valve body rotatable valve element and be located at
Valve body one end is used to driving the buncher of valve element, and the side wall of valve body is provided with the air inlet that connect with compression gas pipe respectively and goes out
QI KOU, is provided with the compressed air channel that can be respectively communicated with air inlet and gas outlet in valve element.
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| CN110641640A (en) * | 2019-11-08 | 2020-01-03 | 海南绿峰资源开发有限公司 | Water-surface integrated machine-made sand floating body and sand collecting method thereof |
| CN112627823A (en) * | 2020-12-08 | 2021-04-09 | 崇义章源钨业股份有限公司 | Mine underground raw ore pre-throwing waste system and mine mining system |
| CN113856893A (en) * | 2021-10-26 | 2021-12-31 | 孙继明 | Integrated process for gold selection, diamond selection and sand washing |
| US11255071B2 (en) * | 2018-11-23 | 2022-02-22 | Wuhan University Of Technology | Robot and collecting method for collecting polymetallic nodules in deep-sea |
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| CN106545341B (en) | 2018-08-21 |
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