CN116624152A - In-situ separation device for deep sea polymetallic nodules and loose sediments - Google Patents
In-situ separation device for deep sea polymetallic nodules and loose sediments Download PDFInfo
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- CN116624152A CN116624152A CN202310790110.1A CN202310790110A CN116624152A CN 116624152 A CN116624152 A CN 116624152A CN 202310790110 A CN202310790110 A CN 202310790110A CN 116624152 A CN116624152 A CN 116624152A
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- Prior art keywords
- deep sea
- rare earth
- separator
- precipitator
- acid solution
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- 239000013049 sediment Substances 0.000 title claims abstract description 32
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 17
- 238000000926 separation method Methods 0.000 title claims abstract description 17
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 44
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 43
- 238000012545 processing Methods 0.000 claims abstract description 28
- 238000005065 mining Methods 0.000 claims abstract description 26
- 229910052751 metal Inorganic materials 0.000 claims abstract description 18
- 239000002184 metal Substances 0.000 claims abstract description 18
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 15
- 239000011707 mineral Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000012716 precipitator Substances 0.000 claims description 26
- 239000002253 acid Substances 0.000 claims description 25
- 239000002002 slurry Substances 0.000 claims description 23
- 239000007788 liquid Substances 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 7
- 238000002386 leaching Methods 0.000 claims description 6
- 239000010802 sludge Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 12
- 230000008901 benefit Effects 0.000 abstract description 10
- 238000000605 extraction Methods 0.000 abstract description 4
- 201000008827 tuberculosis Diseases 0.000 abstract 2
- 238000011161 development Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C50/00—Obtaining minerals from underwater, not otherwise provided for
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C50/00—Obtaining minerals from underwater, not otherwise provided for
- E21C50/02—Obtaining minerals from underwater, not otherwise provided for dependent on the ship movements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention relates to a deep sea multi-metal nodule and loose sediment in-situ separation device, which comprises a mining vehicle, a slime processing unit, a relay station and a water surface working mother ship; according to the invention, the rare earth ore in the loose sediment is extracted on the sea floor, so that the pipeline transportation efficiency is improved, the transportation cost is reduced, the resource utilization rate is improved, the economic benefit of deep sea mining is improved, the commercialization of deep sea mining is realized, two kinds of deep sea mineral resources are developed and utilized simultaneously, the deep sea multi-metal tuberculosis and the deep sea rare earth are mined into a whole, the loose sediment rich in deep sea rare earth around the loose sediment can be collected simultaneously in the process of collecting the deep sea multi-metal tuberculosis, and the loose sediment is classified and processed; the original processing process of deep sea rare earth on the surface working mother ship is transferred to the seabed for carrying out, and the deep sea rare earth is lifted to the surface working mother ship after the seabed extraction processing is finished, so that the economic benefit is greatly improved.
Description
Technical Field
The invention relates to the technical field of deep sea mining, in particular to an in-situ separation device for deep sea polymetallic nodules and loose sediments.
Background
The deep sea mineral products mainly comprise deep sea rare earth and deep sea polymetallic nodules, and in the existing exploitation scheme, the deep sea polymetallic nodules and the deep sea rare earth are exploited respectively.
However, the loose sediment around the deep sea polymetallic nodule often contains abundant deep sea rare earth, the existing mining device finishes deep processing processes such as mineral pair processing and refining on a water surface working mother ship, only the acquisition of a deep sea mineral resource is realized, only the polymetallic nodule is developed, and the loose sediment around the polymetallic nodule is ignored, so that the resource is wasted, and the economic benefit of the whole system is reduced.
Therefore, those skilled in the art are working to develop an in-situ separation device for deep-sea polymetallic nodules and loose sediments, so as to realize synchronous development of deep-sea polymetallic nodules and deep-sea rare earth, so as to solve the defects of the prior art.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present invention aims to solve the technical problem that the existing device can not realize synchronous development of deep sea polymetallic nodules and deep sea rare earth.
In order to achieve the aim, the invention provides an in-situ separation device for deep sea polymetallic nodules and loose sediments, which comprises a mining vehicle, a slime processing unit, a relay station and a water surface working mother ship;
further, the mining vehicle is connected with a slime processing unit through a hose; the ore slurry processing unit is connected with the relay station through a plurality of hoses; the relay station is connected with a lifting pump through a riser and then connected to the water surface working mother ship;
further, the mining vehicle comprises the steps of collecting, crushing, transporting and loading submarine sludge;
further, the slime processing unit comprises a first separator, a mud distributor, a second separator, a precipitator and an acid solution recoverer;
further, the mining vehicle comprises a discharge end, wherein the discharge end is connected with the feed end of the first separator through a hose;
further, the first separator comprises a first discharge port, and the first discharge port is connected with a first feed end of the relay station through a hose;
further, the first separator comprises a second discharge port, and the second discharge port is connected with a first feed end of the mud distributor through a built-in pipeline;
further, the slurry distributor comprises a discharge end which is connected with a feed end of the second separator through a built-in pipeline;
further, the second separator comprises a discharge end, and is connected with a feed end of the precipitator through a built-in pipeline;
further, the precipitator comprises a first discharging end and a second feeding end connected with the relay station through a hose;
further, the precipitator comprises a second discharge end, and is connected with the feed end of the acid solution recoverer through a built-in pipeline;
further, the acid solution recoverer is connected with a second feeding end of the slurry distributor through a built-in pipeline;
further, the first separator comprises separating the collected deep sea mineral content into rare earth-containing solid slurry and multi-metal nodules;
further, the slurry distributor comprises an acid solution feed port, and rare earth-containing liquid slurry is immersed by the acid solution;
further, the second separator separates the rare earth-containing liquid slurry into a rare earth-free dehydrated material and a rare earth-containing leachate;
further, the precipitator comprises a precipitator charging port, and liquid in the precipitator is precipitated by adding a precipitator;
further, the acid solution recoverer recovers and recycles the redundant acid solution;
by adopting the scheme, the deep sea multi-metal nodule and loose sediment in-situ separation device disclosed by the invention has the following advantages:
the deep sea multi-metal nodule and loose sediment in-situ separation device provided by the invention aims at the problems that only single exploitation is realized in the prior art, the obtained economic benefit is mainly metal such as copper, cobalt, manganese and nickel in the multi-metal nodule, meanwhile, deep processing of minerals is carried out on a water surface working mother ship, the collected minerals are simply cleaned and crushed at the bottom of the sea and then are all lifted to the water surface working mother ship, a large amount of impurities are contained in the deep sea multi-metal nodule and loose sediment in-situ separation device, the transmission efficiency is low, the impurities easily have bad influence on a transportation pipeline, such as blockage, corrosion and damage to the transportation pipeline, in addition, the residual waste after the deep sea rare earth is processed on the water surface working mother ship needs to be conveyed back to the sea bottom for emission, the mining cost of the whole system is greatly increased, the economic benefit can not realize the maximized various defect problems, the deep sea solid mineral products and loose sediment are combined and exploited, the rare earth mineral in the loose sediment is extracted through the way of completing extraction on the sea bottom, the transportation efficiency of the pipeline is improved, the utilization rate of the transportation cost is improved, the economic benefit of deep sea mining is improved, the deep sea mining is realized, the deep sea is realized, the two-sea rare earth is transferred to the deep sea metal sediment is still utilized, and the deep sea sediment is still processed on the sea surface, and the deep sea metal sediment is processed on the sea surface; the invention integrates deep sea polymetallic nodule and deep sea rare earth, can collect loose sediment which is rich in deep sea rare earth around the deep sea polymetallic nodule and carries out classification processing on the loose sediment in the process of collecting the deep sea polymetallic nodule; the original processing process of deep sea rare earth on the surface working mother ship is transferred to the seabed for carrying out, and the deep sea rare earth is lifted to the surface working mother ship after the seabed extraction processing is finished, so that the economic benefit is greatly improved.
The conception, specific technical scheme, and technical effects produced by the present invention will be further described in conjunction with the specific embodiments below to fully understand the objects, features, and effects of the present invention.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a deep sea multi-metal nodule and loose sediment in situ separation device of the present invention;
FIG. 2 is a system diagram of an in situ separation apparatus for deep sea polymetallic nodules and loose sediment in accordance with the present invention;
in the figure, 1, a water surface work mother ship; 2. a lift pump; 3. a riser; 4. a relay station; 5. a hose; 6. a slime processing unit; 7. a mining vehicle; a. sea level; b. seabed.
Detailed Description
The following describes preferred embodiments of the present invention to make the technical contents thereof more clear and easy to understand. This invention may be embodied in many different forms of embodiments which are exemplary of the description and the scope of the invention is not limited to only the embodiments set forth herein.
Example 1,
As shown in figure 1 of the drawings,
an in-situ separation device for deep sea polymetallic nodules and loose sediments comprises a mining vehicle 7, a slime processing unit 6, a relay station 4 and a water surface working mother ship 1;
the mining vehicle 7 is connected with the slime processing unit 6 through a hose 5; the slime processing unit 6 is connected with the relay station 4 through a plurality of hoses 5; the relay station 4 is connected with the lifting pump 2 through the lifting pipe 3 and then connected to the surface working mother ship 1;
the mining vehicle 7 is used for collecting, crushing, transporting and loading submarine mineral mud; the mining vehicle 7 is a multifunctional automatic deep sea mining vehicle of CN 115573723A;
the slime processing unit 6 comprises a first separator, a mud distributor, a second separator, a precipitator and an acid solution recoverer;
the mining vehicle 7 comprises a discharge end, and the discharge end is connected with the feed end of the first separator through a hose 5;
the first separator comprises a first discharge port, and the first discharge port is connected with a first feed end of the relay station 4 through a hose 5;
the first separator comprises a second discharge port, and the second discharge port is connected with a first feed end of the mud distributor through a built-in pipeline;
the mud distributor comprises a discharge end and a feeding end connected with the second separator through a built-in pipeline;
the second separator comprises a discharge end and is connected with a feed end of the precipitator through a built-in pipeline;
the precipitator comprises a first discharging end and a second feeding end connected with the relay station 4 through a hose 5;
the precipitator comprises a second discharging end and is connected with the feeding end of the acid solution recoverer through a built-in pipeline;
the acid solution recoverer is connected with a second feeding end of the mud distributor through a built-in pipeline;
the hose 5 and the built-in pipeline are made of anti-corrosion materials;
the first separator comprises the step of separating the collected deep sea mineral content into rare earth-containing solid slurry and multi-metal nodules;
the slurry distributor comprises an acid solution feed inlet, and the rare earth-containing liquid slurry is immersed by the acid solution;
the second separator separates the rare earth-containing liquid slurry into a rare earth-free dehydrated substance and a rare earth-containing leaching solution;
the precipitator comprises a precipitator charging port, and liquid in the precipitator is precipitated by adding a precipitator;
the acid solution recoverer recovers and recycles the redundant acid solution;
as shown in the figure 2 of the drawings,
when the deep sea multi-metal nodule and loose sediment in-situ separation device is used, the method comprises the following process steps:
step 1, a mining vehicle collects deep sea sludge on the sea floor through a collection device thereof, and the collected deep sea sludge containing rare earth and multi-metal nodules is transported to a first separator through a hose;
step 2, the collected deep sea mineral content is separated into rare earth-containing solid slurry and multi-metal nodules by a first separator, and the multi-metal nodules enter a relay station through a hose and then reach a water surface working mother ship through a riser under the action of a lift pump;
step 3, solid slurry containing rare earth elements enters a slurry distributor through an embedded pipeline of the slurry processing device, the slurry distributor is immersed with rare earth-containing liquid slurry through an acid solution (particularly hydrochloric acid solution), and the slurry enters a second separator through the embedded pipeline of the slurry processing device;
step 4, separating the rare earth-containing liquid slurry into rare earth-free dehydrated substances and rare earth-containing leaching liquid by a second separator, discharging the rare earth-free dehydrated substances into the sea floor, and entering the next process by the rare earth-containing leaching liquid;
step 5, the leaching solution containing rare earth enters a precipitator through a built-in pipeline from a second separator, the solid rare earth is precipitated in the precipitator through a precipitator, and the precipitated solid rare earth is conveyed to a relay station through a hose and then reaches a water surface working mother ship through a riser;
step 6, the redundant residue which does not contain rare earth acid in the precipitator enters a recoverer through a built-in pipeline, the redundant acid solution is recovered and reused through an electroanalysis method, and the redundant acid solution enters a mud distributor again through the built-in pipeline to participate in the next acid solution leaching process;
step 7, discharging the residual wastewater to the sea floor after environmental protection treatment;
in summary, according to the technical scheme, through the innovative thought of combining deep-sea solid mineral products and loose sediments with exploitation, rare earth ores in the loose sediments are extracted on the sea bottom, so that the pipeline transportation efficiency is improved, the transportation cost is reduced, the resource utilization rate is improved, the economic benefit of deep-sea mining is improved, the commercialization of deep-sea mining is realized, the simultaneous development and utilization of two kinds of deep-sea mineral resources are realized, the processing treatment of the loose sediments is transferred to the sea bottom, and the treatment of deep-sea polymetallic nodules is still carried out above the water surface; the invention integrates deep sea polymetallic nodule and deep sea rare earth, can collect loose sediment which is rich in deep sea rare earth around the deep sea polymetallic nodule and carries out classification processing on the loose sediment in the process of collecting the deep sea polymetallic nodule; the original processing process of deep sea rare earth on the surface working mother ship is transferred to the seabed for carrying out, and the deep sea rare earth is lifted to the surface working mother ship after the seabed extraction processing is finished, so that the economic benefit is greatly improved.
The foregoing describes in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the invention without requiring creative effort by one of ordinary skill in the art. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by a person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (4)
1. An in-situ separation device for deep sea polymetallic nodules and loose sediment, which is characterized in that,
comprises a mining vehicle (7), a slime processing unit (6), a relay station (4) and a water surface working mother ship (1);
the mining vehicle (7) is connected with the slime processing unit (6) through a hose (5); the slime processing unit (6) is connected with the relay station (4) through a plurality of hoses (5); the relay station (4) is connected with the lifting pump (2) through the lifting pipe (3) and then connected to the water surface working mother ship (1);
the slime processing unit (6) comprises a first separator, a mud distributor, a second separator, a precipitator and an acid solution recoverer.
2. The deep sea polymetallic nodule and loose deposit in situ separation apparatus of claim 1, wherein,
the mining vehicle (7) comprises the steps of collecting, crushing, transporting and loading submarine sludge.
3. The deep sea polymetallic nodule and loose deposit in situ separation apparatus of claim 1, wherein,
the mining vehicle (7) comprises a discharge end, and the discharge end is connected with the feed end of the first separator through a hose (5);
the first separator comprises a first discharge port, and the first discharge port is connected with a first feed end of the relay station (4) through a hose (5);
the first separator comprises a second discharge port, and the second discharge port is connected with a first feed end of the mud distributor through a built-in pipeline;
the mud distributor comprises a discharge end and a feeding end connected with the second separator through a built-in pipeline;
the second separator comprises a discharge end and is connected with a feed end of the precipitator through a built-in pipeline;
the precipitator comprises a first discharging end and a second feeding end connected with the relay station (4) through a hose (5);
the precipitator comprises a second discharging end and is connected with the feeding end of the acid solution recoverer through a built-in pipeline;
the acid solution recoverer is connected with a second feeding end of the mud distributor through a built-in pipeline.
4. The deep sea polymetallic nodule and loose deposit in situ separation apparatus of claim 1, wherein,
the first separator comprises the step of separating the collected deep sea mineral content into rare earth-containing solid slurry and multi-metal nodules;
the slurry dispenser comprises an acid solution feed inlet;
the second separator separates the rare earth-containing liquid slurry into a rare earth-free dehydrated substance and a rare earth-containing leaching solution;
the precipitator comprises a precipitator charging port;
the acid solution recoverer recovers the redundant acid solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310790110.1A CN116624152A (en) | 2023-06-29 | 2023-06-29 | In-situ separation device for deep sea polymetallic nodules and loose sediments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310790110.1A CN116624152A (en) | 2023-06-29 | 2023-06-29 | In-situ separation device for deep sea polymetallic nodules and loose sediments |
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| Publication Number | Publication Date |
|---|---|
| CN116624152A true CN116624152A (en) | 2023-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310790110.1A Pending CN116624152A (en) | 2023-06-29 | 2023-06-29 | In-situ separation device for deep sea polymetallic nodules and loose sediments |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116988793A (en) * | 2023-09-26 | 2023-11-03 | 长沙矿冶研究院有限责任公司 | Low-diffusion deep-sea polymetallic nodule collecting and preprocessing device |
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| US20110210599A1 (en) * | 2008-07-02 | 2011-09-01 | Marine Resources Exploration International Bv | Method of Mining and Processing Seabed Sediment |
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