CN115822604A - Cobalt-rich crust mining system and method for producing temperature difference effect by carbon dioxide jet - Google Patents
Cobalt-rich crust mining system and method for producing temperature difference effect by carbon dioxide jet Download PDFInfo
- Publication number
- CN115822604A CN115822604A CN202211457527.8A CN202211457527A CN115822604A CN 115822604 A CN115822604 A CN 115822604A CN 202211457527 A CN202211457527 A CN 202211457527A CN 115822604 A CN115822604 A CN 115822604A
- Authority
- CN
- China
- Prior art keywords
- carbon dioxide
- cobalt
- rich
- jet
- head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a cobalt-rich crust mining system and method for producing a temperature difference effect by carbon dioxide jet flow, and relates to the technical field of deep sea seabed cobalt-rich crust mining. Comprises an air source providing system, a transportation system and a cobalt-rich crust collecting system; the cobalt-rich crust collecting system comprises a walking device, a relay device, a heating fluid preparing device, a cooling fluid preparing device, a carbon dioxide fluid preparing device and a collecting head jet flow collecting device, wherein high-temperature supercritical carbon dioxide is sprayed out through a first jet flow head, under the action of pressure, the high-temperature supercritical carbon dioxide can uniformly infiltrate into porous medium rock masses with obvious pore development, such as cobalt-rich crust, so that the porous medium rock masses are heated to expand, high-pressure low-temperature liquid carbon dioxide with high-hardness sand and dry ice fragments is sprayed at a second jet flow head, the cobalt-rich crust temperature suddenly drops to generate cracks, the porous medium rock masses are peeled and crushed under the impact of the high-pressure carbon dioxide and the high-hardness sand, and crushed ores are sucked away along with a middle suction pipeline, so that the peeling, crushing and collecting of the cobalt-rich crust are completed.
Description
Technical Field
The invention relates to the technical field of deep sea seabed cobalt-rich crust mining, in particular to a cobalt-rich crust mining system and method for producing a temperature difference effect by using carbon dioxide jet flow.
Background
The cobalt-rich crust is rich in cobalt, nickel, zinc, lead, cerium, platinum and other metals, the cobalt content of the cobalt-rich crust can reach dozens of times of that of the land primary cobalt ore, the average platinum content is also 80 times of that of the land ore, and the cobalt-rich crust has extremely high mining value. The cobalt-rich crust mainly exists on a hillside and an island slope with the water depth of 800-3000 m, the environmental water depth is about 8-30 Mpa, the upper boundary of an ore body on a sea mountain of a western Pacific ocean mountain area (comprising a Mecho lake sea mountain area, a Marcusis sea ridge, a Weike sea mountain, a Moshao sea mountain chain and an Enlai sea mountain chain) in a crust enrichment area with the best exploitation prospect penetrates through a holed insect development field, the lower boundary is formed by clay and silt development field, 50-65% of crust-forming bedrock is basalt, volcanic clastic rock and limestone, and the least part of the crust-forming bedrock is breccite clay and silt. It follows that cobalt-rich crust mining needs to be faced with the problem of stripping cobalt-rich crust from harder or softer bedrock while minimizing damage to the bedrock.
The current research reports on the exploitation of the cobalt-rich crust on the seabed mainly include:
CN103551231B discloses a pulse crushing mechanism, a seabed cobalt-rich crust crushing system and a crushing method, wherein the pulse crushing mechanism comprises a mounting disc and a plurality of groups of pulse electrodes mounted on the mounting disc in pairs; each group of pulse electrodes comprises a positive electrode and a grounding electrode; the pulse electrode is connected with a pulse power supply through a cable; the pulse electrode comprises an electrode body and an insulator wrapping the electrode body, and a tip part of the electrode body extends out of the bottom of the insulator; the middle section of the insulator is provided with a flange, and the pulse electrode is arranged in a mounting hole with a limiting step in the mounting disc; the upper end of the mounting hole is provided with a threaded through cover, and a spring is arranged between the threaded through cover and the flange.
CN214062951U discloses a seabed crusted ore body crushing device, which comprises a cutting device, a hydraulic impact device, a walking device and a seabed repeater; the cutting device and the hydraulic impact device are respectively arranged at the front end and the rear end of the walking device; the cutting device and the hydraulic impact device are respectively used for cutting, partitioning and impacting and crushing the ore body, the walking device is connected with the submarine repeater through a power supply and communication cable, the submarine repeater is provided with a cable supply winch, and the power supply and communication cable is wound on the cable supply winch.
CN110454166A discloses a mining head for cobalt-rich crusts in submarine mineral resources for cutting and collecting cobalt-rich crusted thin-layer ores in deep sea. The mining head mainly comprises a hydraulic collecting mechanism, a mounting disc, a hydraulic shock absorber, a cutter head mounting journal and a bearing system. The mining head is mounted on a subsea work vehicle, which drives the mining head to move. The hydraulic motor drives the mounting disc to rotate around the central shaft of the mounting disc, the three rotary cutters rotate around the central shaft of the rotary cutters, crusts are cut at high speed to separate the crusts from bedrock, and the three cutter heads rotate in a matched manner to concentrate the peeled crusts at the central part of the mining head; the hydraulic collecting mechanism generates negative pressure to suck the crusting blocks into a storage bin of the hydraulic collecting mechanism along with water flow, and the device has the characteristics of high ore collecting efficiency, sensitive micro-topography and the like.
In the prior art, CN103551231B discloses a pulse crushing mechanism, a seabed cobalt-rich crust crushing system and a crushing method, which mainly use a rock crushing method of an electromagnetic pulse technology, the method relates to a complex circuit, and these electrical devices have very high requirements on pressure resistance and sealing property in a deep sea environment, and because charging and discharging are needed, continuous rock crushing cannot be realized, so that efficiency is affected, and the problem of service life of the charging and discharging devices is difficult to solve; in the crushing equipment for the submarine crusting ore body disclosed in CN214062951U, a mechanical cutting and hydraulic impact rock breaking collection method is mainly utilized, and the crushing equipment has the advantages of mature technology and simple structure, but in a deep sea high-salt environment, metal parts are extremely easy to corrode, the durability is poor, a large amount of micron-sized dust particles and noise are generated in the cutting process, plume diffusion is formed, and the submarine ecological environment is influenced; CN110454166A discloses in a mining head of rich cobalt crust of seabed mineral resources, mainly adopted mechanical cutting and hydraulic power collection technique to combine the method, this method has reduced the use of metal spare part to a certain extent, utilizes water power to replace metal part, but has the problem that the mechanical part is easy to be blocked by seabed foreign matter and causes the trouble equally, and its water power collection impact force greatly reduced under the high-pressure submergence environment of deep sea simultaneously.
In summary, the above-mentioned methods in the prior art are difficult to solve the problem of crushing, stripping, and collecting cobalt-rich crust from bedrock with high efficiency.
Disclosure of Invention
The invention aims to provide a cobalt-rich crust mining system for manufacturing a temperature difference effect by using carbon dioxide jet, which realizes efficient and green stripping, breaking and collecting of seabed cobalt-rich crust by using a rock temperature effect principle and carbon dioxide jets in different states.
In order to achieve the purpose, the invention adopts the following technical scheme:
the cobalt-rich crust mining system for the carbon dioxide jet flow manufacturing temperature difference effect comprises an air source providing system, a transportation system and a cobalt-rich crust collecting system positioned on the deep sea bottom, wherein the air source providing system is connected with the transportation system;
the cobalt-rich crust collecting system comprises a walking device, a relay device, a heating fluid preparing device, a cooling fluid preparing device, a carbon dioxide fluid preparing device and a collecting head jet flow collecting device, wherein the relay device is installed on the walking device and connected with the conveying system, carbon dioxide is conveyed and temporarily stored in the relay device through the conveying system, and the pressure of the carbon dioxide of the relay device is not less than 7.3MPa;
the relay device is respectively connected with the heating fluid preparation device, the cooling fluid preparation device and the carbon dioxide fluid preparation device; the collecting head jet flow collecting device comprises a first jet flow head, a second jet flow head, a mixing chamber and a suction pipe, wherein the first jet flow head and the second jet flow head are respectively positioned at one end of the collecting head jet flow collecting device, the first jet flow head is arranged in front of the second jet flow head, and the mixing chamber is positioned at the rear end of the second jet flow head;
the heating fluid preparation device is used for heating the carbon dioxide provided by the relay device to reach the condition of forming the supercritical carbon dioxide, then continuously heating the carbon dioxide, sending the high-temperature supercritical carbon dioxide at the heating temperature into the first jet head, and spraying the high-temperature supercritical carbon dioxide from the first jet head;
the cooling fluid preparation device is used for mixing the high-hardness sand with the carbon dioxide provided by the relay device, forming solid dry ice by condensing the high-hardness sand to be below 56.6 ℃, crushing the solid dry ice into particles and then sending the particles into the mixing chamber;
the carbon dioxide fluid preparation device is used for pressurizing the carbon dioxide provided by the relay device to more than 7.37MPa to form high-density liquid carbon dioxide, and sending the high-density liquid carbon dioxide into the mixing chamber;
the low-temperature fluid and the high-pressure jet fluid in the mixing chamber are mixed and then are quickly sent into the second jet head and are sprayed out of the second jet head;
the suction pipe is used for collecting the crushed cobalt-rich crusts.
The beneficial technical effects directly brought by the technical scheme are as follows:
according to the cobalt-rich crust collecting system, the relay device, the heating fluid preparation device, the cooling fluid preparation device, the carbon dioxide fluid preparation device and the collecting head jet flow collecting device which are arranged on the walking device are matched together, so that the high-efficiency green collection of the seabed cobalt-rich crust can be realized. Specifically, the method comprises the following steps: the supercritical carbon dioxide with high pressure and high temperature obtained by the heating fluid preparation device is sprayed out by the first jet flow head of the collecting head jet flow collecting device, and the carbon dioxide in the state has extremely strong permeability due to extremely low viscosity, and can uniformly permeate into porous medium rock mass with obvious pore development, such as cobalt-rich crusts, under the action of pressure to cause the porous medium rock mass to expand when being heated; the second jet head of the collecting head jet collecting device sprays high-pressure low-temperature liquid carbon dioxide with high-hardness sand and dry ice fragments, the cobalt-rich crusts are heated and cooled alternately along with the advancing of the walking device, temperature stress is generated inside the cobalt-rich crusts, cracks are broken in case of germination, the cobalt-rich crusts can be peeled and broken under the high-pressure impact of the high-pressure liquid carbon dioxide wrapping the high-hardness sand grinding materials, the broken ore is sucked away along with the middle suction pipe, and the peeling, breaking and collecting of the cobalt-rich crusts are completed.
In summary, according to the technical scheme, the high temperature and high permeability of supercritical carbon dioxide, the low temperature of dry ice, and different expansion with heat and contraction with cold characteristics of the cobalt-rich crust and the bedrock are mainly utilized, the cobalt-rich crust is cracked by adopting expansion with heat and contraction with cold through the first jet head, and then the second jet head is assisted by abrasive impact, so that the effect of accurate peeling is achieved, and the deep sea environment is suitable for.
In a preferred embodiment of the present invention, the relay device includes a relay storage tank and a pressurizing mechanism for pressurizing the carbon dioxide supplied from the transportation system.
In the above technical solution, when the carbon dioxide is transported to the relay device located in the deep sea by the transportation system, the gaseous carbon dioxide is converted into liquid carbon dioxide, and therefore the pressure is increased by providing the pressurizing mechanism to ensure that the pressure of the carbon dioxide is not less than 7.3MPa, and then the carbon dioxide which has reached the pressure condition is temporarily stored for later use by the relay device.
As another preferable aspect of the present invention, the heated fluid preparation apparatus includes a first delivery pipe, a first one-way control valve, a heating chamber, and a second one-way control valve, wherein one end of the first delivery pipe is connected to the first outlet of the relay storage tank, and the other end of the first delivery pipe is connected to the first fluidic head, the first one-way control valve and the second one-way control valve are respectively disposed on the first delivery pipe near the relay storage tank and the first fluidic head, the heating chamber is located between the first one-way control valve and the second one-way control valve, the heating chamber is heated to a temperature of 31.1 ℃ to form a condition of supercritical carbon dioxide formation, and then is continuously heated to a temperature of 65 to 75 ℃.
In the above technical scheme, the heating fluid preparation device is to obtain high-temperature supercritical carbon dioxide, when the temperature is higher than 31.1 ℃ and the pressure is higher than 7.3Mpa, the carbon dioxide enters a supercritical state, the carbon dioxide stored in the relay device and having the pressure higher than 7.3Mpa is heated through the heating chamber, and after the supercritical state is reached, the heating is continued until the temperature is 65-75 ℃ to form the high-temperature supercritical carbon dioxide.
Further, cooling fluid preparation facilities include pipeline two, one-way control valve three, high hardness sand mixing chamber, cooling and congealing room and broken room, pipeline two's one end connect the export of relay storage jar two, the other end connect the mixing chamber, one-way control valve three set up on the pipeline two that is close to relay storage jar one side, high hardness sand mixing chamber, cooling and congealing room and broken room set up side by side in proper order, high hardness sand mixing chamber in the one side that is close to one-way control valve three, broken room in the one side that is close to the mixing chamber.
Furthermore, the carbon dioxide fluid preparation device comprises a third conveying pipeline, a fourth one-way control valve, a carbon dioxide pressurizing chamber and a fifth one-way control valve, one end of the third conveying pipeline is connected with the third outlet of the relay storage tank, the other end of the third conveying pipeline is connected with the mixing chamber, the fourth one-way control valve and the fifth one-way control valve are connected to the third conveying pipeline, and the carbon dioxide pressurizing chamber is arranged between the fourth one-way control valve and the fifth one-way control valve.
Furthermore, the suction pipe is also connected with a suction pump, and the crushed cobalt-rich crusts are collected through suction generated by the suction pump.
Furthermore, the transportation system comprises a transportation pipeline, the transportation pipeline comprises a pipeline body, an umbilical cable is inserted into the pipeline body, and the umbilical cable is fixed at the central position of the pipeline body through a damping fixing device; the pipeline body is made of stretch-resistant materials.
Furthermore, the Mohs hardness of the high-hardness sand is more than 7, and the high-hardness sand is selected from silicon dioxide, aluminum oxide or garnet with the granularity of 60-150 meshes.
Furthermore, the walking device is a submarine mine car, and the relay device is arranged at the tail part of the submarine mine car; the first jet head and the second jet head are arranged in a staggered mode, and jet targets of the first jet head and the second jet head are different.
The invention also aims to provide a method for exploiting the cobalt-rich crust by using carbon dioxide jet flow to produce a temperature difference effect, which sequentially comprises the following steps:
s1, providing carbon dioxide to a relay device through a transportation system by a gas source providing system, converting gaseous carbon dioxide provided by the gas source providing system into liquid carbon dioxide when the gaseous carbon dioxide reaches the relay device positioned in deep sea, pressurizing the liquid carbon dioxide and ensuring that the pressure of the carbon dioxide is not less than 7.3MPa; temporarily storing the carbon dioxide reaching the pressure condition by the relay device;
s2, the carbon dioxide stored in the relay device enters a heating fluid preparation device, the heating fluid preparation device is further heated, the heating is continued for a period of time to reach 65-75 ℃ after the formation condition of the supercritical carbon dioxide is reached to be more than 31 ℃, the high-temperature supercritical carbon dioxide is formed, the high-temperature supercritical carbon dioxide is sent into the first jet head, and the first jet head is sprayed out to heat the cobalt-rich crust;
s3, the carbon dioxide stored in the relay device enters a cooling fluid preparation device, is mixed with the hard sand grinding material after being cooled, is condensed to be below 56.6 ℃ below zero to prepare dry ice doped with the hard sand, and then the dry ice doped with the hard sand is crushed into particles and is sent into a mixing chamber;
s4, the carbon dioxide stored in the relay device enters a carbon dioxide fluid preparation device, is pressurized to be more than 7.37MPa to form high-density liquid carbon dioxide, and is sent into the mixing chamber; mixing with the dry ice doped with the hard sand in the step S3;
and S5, spraying the high-pressure low-temperature liquid carbon dioxide with the hard sand and the dry ice particles obtained in the mixing chamber from a second jet head, heating and cooling the cobalt-rich crusts alternately along with the advance of the walking device, generating temperature stress inside the cobalt-rich crusts and initiating fracture damage, peeling and crushing the cobalt-rich crusts under the high-pressure impact of the high-pressure liquid carbon dioxide wrapped with the hard sand grinding materials, sucking the crushed cobalt-rich crusts from the suction pipe, and finishing peeling, crushing and collecting the cobalt-rich crusts.
Compared with the prior art, the invention has the following beneficial technical effects:
(1) The invention utilizes the characteristics that the cobalt-rich crust and the bedrock have different porosities and different thermal expansion rates to crush and strip the cobalt-rich crust, the stripping method has small damage to the bedrock, and a cutting height control system does not need to be arranged.
(2) Make the inside fracture that produces of rich cobalt crust through cold and hot alternation, in addition the broken mode of peeling off of abrasive fluid impact, the broken block diameter of tuberculosis is great, and abrasive particle diameter weight is big subsides easily, can not produce fine particle diameter granule in crushing process, can not form the plume and cause the pollution to seabed environment.
(3) The umbilical cable wraps up in carbon dioxide pipeline, and carbon dioxide is inert gas, can play the guard action to the umbilical cable, reduces the sea water to the corruption of umbilical cable, reduces the risk of umbilical cable fracture or electric leakage, can also play the effect of cooling to the umbilical cable simultaneously.
(4) The hard sand is mixed with carbon dioxide as an abrasive and then made into dry ice, the hard sand can be used as a condensation nucleus, the carbon dioxide condensation temperature is reduced, and energy is saved compared with the dry ice made of pure carbon dioxide.
(5) The jet medium adopts carbon dioxide, and the characteristics of carbon dioxide in different states are fully utilized: the characteristics of high temperature, low viscosity and high permeability of the supercritical carbon dioxide can better heat the cobalt-rich crusts rich in pores; the high-density carbon dioxide has higher density than water, provides larger impact force and the characteristic of low temperature of the dry ice, and is mostly retained on the seabed in the form of forming a carbon lake and a hydrate to realize the sequestration of the carbon dioxide.
(6) For some rocks with low density and developed pores, obvious crack damage can be generated by the temperature difference of 70 ℃, different rocks have different thermal expansion coefficients, and the temperature difference effect is different. The invention utilizes the characteristic to form the temperature difference of more than 70 ℃ and can crack and strip the cobalt-rich crust.
In conclusion, the invention can realize efficient and green stripping, crushing and collecting of the cobalt-rich crusts on the seabed by using the rock temperature effect principle and carbon dioxide jet flows in different states. The mining system can actively adapt to the change of the crust thickness, reduce the damage to bedrock and the environmental influence of fragment dust, directly seal the carbon dioxide tail gas in the deep sea, realize carbon sealing and have the characteristics of high efficiency and environmental protection.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a flow chart of the cobalt-rich crust mining method of the present invention;
FIG. 2 is a schematic diagram of the overall structure of a cobalt-rich crust mining system of the present invention in which a temperature difference effect is produced by carbon dioxide jets;
FIG. 3 is a schematic cross-sectional view of a transportation pipe in the transportation system of the present invention;
FIG. 4 is a schematic view of a partial structure of a cobalt-rich crust mining system of the present invention in which a carbon dioxide jet produces a temperature differential effect;
FIG. 5 is a schematic view of breaking and stripping the crust using the mining system of the present invention;
in the figure:
1. the system comprises a transportation system, 11, an air source providing system, 12, a transportation pipeline, 121, a pipeline body, 122, an umbilical cable, 123, a damping fixing device, 13, a relay device, 131, a pressurizing mechanism, 132, a relay storage tank, 2, a heating fluid preparation device, 21, a first conveying pipeline, 22, a first one-way control valve, 23, a heating chamber, 24, a second one-way control valve, 3, a cooling fluid preparation device, 31, a second conveying pipeline, 32, a third one-way control valve, 33, a high-hardness sand mixing chamber, 34, a cooling solidification chamber, 35, a crushing chamber, 4, a carbon dioxide fluid preparation device, 41, a third conveying pipeline, 42, a fourth one-way control valve, 43, a carbon dioxide pressurizing chamber, 44, a fifth one-way control valve, 5, a collection head jet flow collection device, 51, a first jet head, 52, a mixing chamber, 53, a suction pipe, 531 and a suction pump.
Detailed Description
The invention provides a cobalt-rich crust mining system and method for producing a temperature difference effect by carbon dioxide jet, and the invention is further explained by combining specific embodiments in order to make the advantages and technical scheme of the invention clearer and clearer.
The term "high-temperature supercritical carbon dioxide" as used herein means supercritical carbon dioxide at a temperature of 65 to 75 ℃.
"high hardness sand" means: the Mohs hardness is more than 7, such as silicon dioxide, aluminum oxide or garnet with the granularity of 60-150 meshes.
The high-pressure jet fluid is high-density liquid carbon dioxide formed by pressurization through a pressurization device, and the pressure is more than 7.37 MPa.
The low-temperature fluid is fluid with the temperature of-30 to-50 ℃ and is mixed fluid formed by utilizing high-pressure high-density carbon dioxide fluid to wrap solid dry ice and sand particles by pressure.
The pressure of carbon dioxide of the relay device described herein is 7.3MPa or more, which means an absolute pressure.
The invention mainly utilizes the rock temperature effect principle and can realize the high-efficiency green stripping, crushing and collection of the seabed cobalt-rich crust through the carbon dioxide jet flow in different states, and the application scene of the technical scheme is that in a deep sea environment, the supercritical carbon dioxide is lighter than an aqueous medium, so that the supercritical carbon dioxide is not suitable for being impacted by the carbon dioxide, thereby generating great energy consumption and failing to achieve the technical problem to be solved by the application.
Referring to fig. 2 to 4, the cobalt-rich crust mining system for producing the temperature difference effect by the carbon dioxide jet comprises a gas source providing system 11, a transportation system 1 and a cobalt-rich crust collecting system located on the deep sea bottom.
Wherein: the gas supply system 11 is connected to the transportation system, and the gas supply system 11 for example employs a gas supply device located at the sea surface which supplies the carbon dioxide gas source in the form of release storage or direct transport from land.
The transportation system 1 mainly functions to transport gaseous carbon dioxide provided by the gas source providing system to the cobalt-rich crust collecting system located on the deep sea bottom, the transportation system 1 comprises a transportation pipeline 12, as shown in fig. 3, the transportation pipeline comprises a pipeline body 121, the pipeline body 121 is made of a strong anti-stretching material, an umbilical cable 122 is inserted in the middle of the pipeline body 121, the umbilical cable 122 is fixed at the central position of the pipeline body through a damping fixing device 123, and friction between the umbilical cable and the pipeline body caused by movement of the transportation pipeline is avoided.
The cobalt-rich incrustation collecting system comprises a walking device, a relay device 13, a heating fluid preparation device 2, a cooling fluid preparation device 3, a carbon dioxide fluid preparation device 4 and a collecting head jet flow collecting device 5.
The walking device is a movable seabed mine car, and the relay device 13, the heating fluid preparation device 2, the cooling fluid preparation device 3, the carbon dioxide fluid preparation device 4 and the collecting head jet flow collecting device 5 are all arranged on the seabed mine car so as to realize the exploitation of seabed minerals, and the structure of the seabed mine car can be realized by taking the reference of the prior art.
The relay device 13 is attached to the tail end of the submarine mine car, is connected to a transportation system, and transports and temporarily stores carbon dioxide in the relay device by the transportation system, and the pressure of carbon dioxide in the relay device is not less than 7.3MPa.
As shown in fig. 4, the relay device includes a pressurizing mechanism 131 and a relay storage tank 132, and when the carbon dioxide reaches the deep sea and becomes liquid due to the pressure and temperature of the deep sea, the pressurizing mechanism 131 is used for pressurizing the carbon dioxide delivered from the transportation system, and the pressure is ensured to be 7.3MPa or more by pressurization, and the carbon dioxide is temporarily stored by the relay storage tank 132. The relay storage tank 132 is provided with three outlets, namely an outlet I, an outlet II and an outlet III, the three outlets are respectively connected with three parallel conveying pipelines I21, a conveying pipeline II 31 and a conveying pipeline III 41, one end of the conveying pipeline I21 is connected with the outlet I of the relay storage tank, the other end of the conveying pipeline I is connected with the first jet head 51, the conveying pipeline I is respectively provided with a one-way control valve I22, a heating chamber 23 and a one-way control valve II 24, the one-way control valve I and the one-way control valve II are respectively arranged on the conveying pipeline I close to one side of the relay storage tank and the first jet head, the heating chamber is located between the one-way control valve I and the one-way control valve II, the heating chamber forms a condition of forming supercritical carbon dioxide when being heated to 31 ℃, and then is continuously heated to 65-75 ℃ to form high-temperature supercritical carbon dioxide.
The first delivery pipeline 21, the first one-way control valve 22, the heating chamber 23 and the second one-way control valve 24 together form a heating fluid preparation device, high-temperature supercritical carbon dioxide is formed by heating through the heating chamber, and the high-temperature supercritical carbon dioxide flows to the first jet head 51 through the second one-way control valve 24.
The cooling fluid preparation device is used for mixing the high-hardness sand with the carbon dioxide provided by the relay device, forming solid dry ice by condensing the high-hardness sand to a temperature below-56.6 ℃, and crushing the solid dry ice into particles and then sending the particles into the mixing chamber; cooling fluid preparation facilities includes that the export of relay storage jar two is connected to the one end of pipeline two 31, three 32 of one-way control valve, high rigidity sand mixing chamber 33, cooling solidify room 34 and crushing room 35, and the other end is connected the mixing chamber, three settings of one-way control valve are on the pipeline two that are close to relay storage jar one side, high rigidity sand mixing chamber, cooling solidify room and crushing room set up side by side in proper order, high rigidity sand mixing chamber in one side that is close to three of one-way control valve, crushing room in one side that is close to the mixing chamber.
The carbon dioxide entering the cooling fluid preparation device flows through the third one-way control valve 32 through the second conveying pipeline 31, enters the mixing chamber 33 of the carbon dioxide and the high-hardness sand, is mixed with the high-hardness sand, then enters the cooling solidification chamber 34 to be solidified into solid dry ice, then enters the crushing chamber 35 to be crushed into particles, and flows to the mixing chamber 52 of the collecting head jet flow collecting device 5.
The carbon dioxide fluid preparation device is used for pressurizing the carbon dioxide provided by the relay device to above 7.37MPa to form high-density liquid carbon dioxide, and sending the high-density liquid carbon dioxide into the mixing chamber; the carbon dioxide fluid preparation device comprises a third conveying pipeline 41, a fourth one-way control valve 42, a carbon dioxide pressurizing chamber 43 and a fifth one-way control valve 44, wherein one end of the third conveying pipeline is connected to the third outlet of the relay storage tank, the other end of the third conveying pipeline is connected to the mixing chamber 52, the fourth one-way control valve and the fifth one-way control valve are connected to the third conveying pipeline, and the carbon dioxide pressurizing chamber is arranged between the fourth one-way control valve and the fifth one-way control valve. The carbon dioxide entering the carbon dioxide fluid preparation device flows through the four one-way control valve 42 through the third conveying pipeline 41, enters the carbon dioxide pressurizing chamber 43, is pressurized to form high-density liquid carbon dioxide, flows through the five one-way control valve 44, and then flows to the mixing chamber 52 of the collecting head jet flow collecting device 5.
The collecting head jet flow collecting device 5 comprises a first jet flow head 51, a mixing chamber 52, a suction pipe 53 and a suction pump 531, wherein the first jet flow head 51 is connected with a heating fluid preparation device, high-temperature supercritical carbon dioxide is sprayed to heat mineral cobalt-rich crusts, the mixing chamber 52 is positioned at the rear end of a second jet flow head, the mixing chamber is connected with a cooling fluid preparation device and a carbon dioxide fluid preparation device, high-density liquid carbon dioxide mixed with dry ice and high-hardness sand grinding materials is sprayed, the dry ice generates low temperature to cause the cobalt-rich crusts to crack, the grinding materials and the impact force of the high-density carbon dioxide further break and peel the cobalt-rich crusts along breaking cracks, the suction pipe 53 collects broken ores through suction force generated by the suction pump 531, and low-disturbance green collection of the seabed cobalt-rich crusts is completed.
The mining method of the present invention is described in detail below in conjunction with the mining system described above, as shown in fig. 1.
Step one, a gas source providing system provides carbon dioxide to a relay device through a transportation system, when gaseous carbon dioxide provided by the gas source providing system reaches the relay device in deep sea, the gaseous carbon dioxide is converted into liquid carbon dioxide, the liquid carbon dioxide is pressurized through a pressurizing mechanism chamber, and the pressure of the carbon dioxide is ensured to be larger than or equal to 7.3MPa; temporarily storing the carbon dioxide reaching the pressure condition by the relay device;
step two, the carbon dioxide stored in the relay device enters a heating fluid preparation device, the heating fluid preparation device is further heated, after the formation condition of the supercritical carbon dioxide is higher than 31 ℃, the heating fluid is continuously heated for a period of time to 65-75 ℃ through a heating chamber to form high-temperature supercritical carbon dioxide, the high-temperature supercritical carbon dioxide is sent into the first jet head, the first jet head ejects the ejected high-temperature supercritical carbon dioxide, and the carbon dioxide in the state has extremely low viscosity and extremely strong permeability, and can uniformly permeate into porous medium rock masses with obvious pore development, such as cobalt-rich crusts, and is heated to expand;
step three, the carbon dioxide stored in the relay device enters a cooling fluid preparation device, is mixed with the hard sand grinding material after being cooled, is condensed to be below 56.6 ℃ below zero to prepare dry ice doped with the hard sand, and then the dry ice doped with the hard sand is crushed into particles and is sent into a mixing chamber;
step four, the carbon dioxide stored in the relay device enters a carbon dioxide fluid preparation device, is pressurized to be more than 7.37MPa to form high-density liquid carbon dioxide, and is sent into the mixing chamber; mixing with dry ice mixed with hard sand in the third step;
and fifthly, as shown in fig. 5, the high-pressure low-temperature liquid carbon dioxide with the hard sand and the dry ice particles obtained in the mixing chamber is sprayed out from the second jet head, the cobalt-rich crust is heated and cooled alternately along with the advancing of the walking device, temperature stress is generated inside the cobalt-rich crust, cracks are broken in a bursting manner, the cobalt-rich crust can be peeled and broken under the high-pressure impact of the high-pressure liquid carbon dioxide wrapped with the hard sand grinding material, the broken cobalt-rich crust is sucked away from the suction pipe, and the peeling, breaking and collecting of the cobalt-rich crust are completed.
The specific structures and working modes of the heating chamber, the high-hardness sand mixing chamber, the cooling and solidifying chamber, the crushing chamber and the carbon dioxide pressurizing chamber mentioned in the invention can be realized by taking the reference of the prior art, and the detailed description is omitted.
The parts which are not described in the invention can be realized by taking the prior art as reference.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a carbon dioxide efflux makes difference in temperature effect's rich cobalt crust mining system, includes that air supply provides system, conveyor system and is located the rich cobalt crust collection system in the deep sea seabed which characterized in that:
the air source providing system is connected with the transportation system;
the cobalt-rich crust collecting system comprises a walking device, a relay device, a heating fluid preparing device, a cooling fluid preparing device, a carbon dioxide fluid preparing device and a collecting head jet collecting device, wherein the relay device, the heating fluid preparing device, the cooling fluid preparing device, the carbon dioxide fluid preparing device and the collecting head jet collecting device are all arranged on the walking device, the relay device is connected with the transportation system, carbon dioxide is transported and temporarily stored in the relay device through the transportation system, and the pressure of the carbon dioxide of the relay device is not less than 7.3MPa;
the relay device is respectively connected with the heating fluid preparation device, the cooling fluid preparation device and the carbon dioxide fluid preparation device;
the collecting head jet flow collecting device comprises a first jet flow head, a second jet flow head, a mixing chamber and a suction pipe, wherein the first jet flow head and the second jet flow head are respectively positioned at one end of the collecting head jet flow collecting device, the first jet flow head is arranged in front of the second jet flow head, and the mixing chamber is positioned at the rear end of the second jet flow head;
the heating fluid preparation device is used for heating the carbon dioxide provided by the relay device to reach the condition of formation of the supercritical carbon dioxide, then continuously heating the carbon dioxide, sending the high-temperature supercritical carbon dioxide at the heating temperature into the first jet head, and ejecting the carbon dioxide from the first jet head;
the cooling fluid preparation device is used for mixing the high-hardness sand with the carbon dioxide provided by the relay device, forming solid dry ice by condensing the mixture to be below 56.6 ℃, and crushing the solid dry ice and the high-hardness sand into particles and then sending the particles into the mixing chamber;
the carbon dioxide fluid preparation device is used for pressurizing the carbon dioxide provided by the relay device to more than 7.37MPa to form high-density liquid carbon dioxide, and sending the high-density liquid carbon dioxide into the mixing chamber;
the low-temperature fluid and the high-pressure jet fluid in the mixing chamber are mixed and then are quickly fed into the second jet head and are sprayed out of the second jet head;
the suction pipe is used for collecting the crushed cobalt-rich crusts.
2. The carbon dioxide jet produced thermoelectric effect cobalt-rich crust mining system of claim 1, wherein: the relay device comprises a relay storage tank and a pressurizing mechanism, wherein the pressurizing mechanism is used for pressurizing carbon dioxide conveyed by the conveying system.
3. The carbon dioxide jet produced thermoelectric effect cobalt-rich crust mining system of claim 2, wherein: the heating fluid preparation device comprises a first conveying pipeline, a first one-way control valve, a heating chamber and a second one-way control valve, wherein one end of the first conveying pipeline is connected to the first outlet of the relay storage tank, the other end of the first conveying pipeline is connected to the first jet head, the first one-way control valve and the second one-way control valve are respectively arranged on the first conveying pipeline close to one side of the relay storage tank and the first jet head, the heating chamber is located between the first one-way control valve and the second one-way control valve, the heating chamber is heated to 31.1 ℃ to form a condition of formation of supercritical carbon dioxide, and then is continuously heated to 65-75 ℃.
4. The carbon dioxide jet produced thermoelectric effect cobalt-rich crust mining system of claim 1, wherein: the cooling fluid preparation device comprises a second conveying pipeline, a third one-way control valve, a high-hardness sand mixing chamber, a cooling solidification chamber and a crushing chamber, wherein one end of the second conveying pipeline is connected with the second outlet of the relay storage tank, the other end of the second conveying pipeline is connected with the mixing chamber, the third one-way control valve is arranged on the second conveying pipeline close to one side of the relay storage tank, the high-hardness sand mixing chamber, the cooling solidification chamber and the crushing chamber are sequentially arranged side by side, the high-hardness sand mixing chamber is arranged on one side close to the third one-way control valve, and the crushing chamber is arranged on one side close to the mixing chamber.
5. The carbon dioxide jet produced thermoelectric effect cobalt-rich crust mining system of claim 1, wherein: carbon dioxide fluid preparation facilities include delivery conduit three, one-way control valve four, carbon dioxide pumping chamber and one-way control valve five, delivery conduit three one end connect the export of relay storage jar three, the other end is connected the mixing chamber, one-way control valve four and one-way control valve five connect on delivery conduit three, carbon dioxide pumping chamber set up between one-way control valve four and one-way control valve five.
6. The carbon dioxide jet produced thermoelectric effect cobalt-rich crust mining system of claim 1, wherein: the suction pipe is also connected with a suction pump, and the crushed cobalt-rich crusts are collected through suction generated by the suction pump.
7. The carbon dioxide jet produced thermoelectric effect cobalt-rich crust mining system of claim 1, wherein: the transportation system comprises a transportation pipeline, the transportation pipeline comprises a pipeline body, an umbilical cable is inserted into the pipeline body, and the umbilical cable is fixed in the center of the pipeline body through a damping fixing device.
8. The carbon dioxide jet produced thermoelectric effect cobalt-rich crust mining system of claim 1, wherein: the Mohs hardness of the high-hardness sand is more than 7, and the high-hardness sand is selected from silicon dioxide, aluminum oxide or garnet with the granularity of 60-150 meshes.
9. The carbon dioxide jet produced thermoelectric effect cobalt-rich crust mining system of claim 1, wherein: the walking device is a submarine mine car, and the relay device is arranged at the tail part of the submarine mine car; the first jet flow head and the second jet flow head are arranged in a staggered mode, and jet flow targets of the first jet flow head and the second jet flow head are different.
10. A method for exploiting cobalt-rich incrustations by using carbon dioxide jet flow to produce a temperature difference effect, which is characterized in that the cobalt-rich incrustations exploiting system for producing the temperature difference effect by using the carbon dioxide jet flow as claimed in any one of claims 1 to 9 is adopted, and the exploiting method sequentially comprises the following steps:
s1, providing carbon dioxide to a relay device through a transportation system by a gas source providing system, converting gaseous carbon dioxide provided by the gas source providing system into liquid carbon dioxide when the gaseous carbon dioxide reaches the relay device positioned in deep sea, pressurizing the liquid carbon dioxide and ensuring that the pressure of the carbon dioxide is not less than 7.3MPa; temporarily storing the carbon dioxide reaching the pressure condition by the relay device;
s2, the carbon dioxide stored in the relay device enters a heating fluid preparation device, the heating fluid preparation device is further heated, the heating is continued for a period of time to reach 65-75 ℃ after the formation condition of the supercritical carbon dioxide is higher than 31.1 ℃, the high-temperature supercritical carbon dioxide is formed, the high-temperature supercritical carbon dioxide is sent into the first jet head, and the first jet head is sprayed out to heat the cobalt-rich crust;
s3, the carbon dioxide stored in the relay device enters a cooling fluid preparation device, is mixed with the hard sand grinding material after being cooled, is condensed to be below 56.6 ℃ below zero to prepare dry ice doped with the hard sand, and then the dry ice doped with the hard sand is crushed into particles and is sent into a mixing chamber;
s4, the carbon dioxide stored in the relay device enters a carbon dioxide fluid preparation device, is pressurized to be more than 7.37MPa to form high-density liquid carbon dioxide, and is sent into the mixing chamber; mixing with the dry ice doped with the hard sand in the step S3;
and S5, spraying the high-pressure low-temperature liquid carbon dioxide with the hard sand and the dry ice particles obtained in the mixing chamber from a second jet head, heating and cooling the cobalt-rich crusts alternately along with the advance of the walking device, generating temperature stress inside the cobalt-rich crusts and initiating fracture damage, peeling and crushing the cobalt-rich crusts under the high-pressure impact of the high-pressure liquid carbon dioxide wrapped with the hard sand grinding materials, sucking the crushed cobalt-rich crusts from the suction pipe, and finishing peeling, crushing and collecting the cobalt-rich crusts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211457527.8A CN115822604B (en) | 2022-11-21 | 2022-11-21 | Cobalt-rich crust exploitation system and method for carbon dioxide jet flow manufacturing temperature difference effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211457527.8A CN115822604B (en) | 2022-11-21 | 2022-11-21 | Cobalt-rich crust exploitation system and method for carbon dioxide jet flow manufacturing temperature difference effect |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115822604A true CN115822604A (en) | 2023-03-21 |
| CN115822604B CN115822604B (en) | 2023-06-30 |
Family
ID=85529734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211457527.8A Active CN115822604B (en) | 2022-11-21 | 2022-11-21 | Cobalt-rich crust exploitation system and method for carbon dioxide jet flow manufacturing temperature difference effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115822604B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117167016A (en) * | 2023-09-01 | 2023-12-05 | 中国海洋大学 | By means of supercritical CO 2 Device for realizing efficient collection and transportation of deep sea ores |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1721065A (en) * | 2005-06-20 | 2006-01-18 | 浙江大学 | Copper-based catalyst using manganese nodule and cobalt-bearing crust as carrier, and preparation method thereof |
| US20060032637A1 (en) * | 2004-08-10 | 2006-02-16 | Ayoub Joseph A | Method for exploitation of gas hydrates |
| JP2010180528A (en) * | 2009-02-03 | 2010-08-19 | M Hikari Energy Kaihatsu Kenkyusho:Kk | Deep sea resource mining and recovery integrated ocean factory |
| EP2266771A2 (en) * | 2009-06-23 | 2010-12-29 | Messer Group GmbH | Device and method for cooling and inserting a flow of pulverulent or granular materials in a storage container |
| CN102409976A (en) * | 2011-12-02 | 2012-04-11 | 中国石油大学(华东) | Radial horizontal drilling system using supercritical carbon dioxide and drilling method thereof |
| CN103742075A (en) * | 2013-12-18 | 2014-04-23 | 中国石油大学(北京) | Supercritical carbon dioxide abrasive jet flow perforation simulation experiment system |
| CN104863654A (en) * | 2015-04-21 | 2015-08-26 | 中国石油大学(华东) | Device and method for exploitation of terrestrial heat through supercritical carbon dioxide |
| CN104863595A (en) * | 2015-06-09 | 2015-08-26 | 长沙矿冶研究院有限责任公司 | Seabed cobalt-rich crust crushing and collecting integrated device |
| CN106939375A (en) * | 2017-04-10 | 2017-07-11 | 青岛海洋地质研究所 | Deep-sea hydrothermal metal sulfide gathers electrolysis system |
| CN109026009A (en) * | 2018-10-17 | 2018-12-18 | 中南大学 | A kind of digging head of Deep Sea Minerals cobalt bearing crust |
| CN109709134A (en) * | 2018-08-24 | 2019-05-03 | 中国石油大学(华东) | A kind of pit shaft self-loopa heat exchange experimental provision and method |
| CN109899081A (en) * | 2019-04-02 | 2019-06-18 | 中铁工程装备集团有限公司 | Utilize the development machine of supercritical carbon dioxide jet stream broken rock |
| CN215672216U (en) * | 2021-09-23 | 2022-01-28 | 中煤(天津)地下工程智能研究院有限公司 | High-hardness rock soil rapid tunneling mechanism |
-
2022
- 2022-11-21 CN CN202211457527.8A patent/CN115822604B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060032637A1 (en) * | 2004-08-10 | 2006-02-16 | Ayoub Joseph A | Method for exploitation of gas hydrates |
| CN1721065A (en) * | 2005-06-20 | 2006-01-18 | 浙江大学 | Copper-based catalyst using manganese nodule and cobalt-bearing crust as carrier, and preparation method thereof |
| JP2010180528A (en) * | 2009-02-03 | 2010-08-19 | M Hikari Energy Kaihatsu Kenkyusho:Kk | Deep sea resource mining and recovery integrated ocean factory |
| EP2266771A2 (en) * | 2009-06-23 | 2010-12-29 | Messer Group GmbH | Device and method for cooling and inserting a flow of pulverulent or granular materials in a storage container |
| CN102409976A (en) * | 2011-12-02 | 2012-04-11 | 中国石油大学(华东) | Radial horizontal drilling system using supercritical carbon dioxide and drilling method thereof |
| CN103742075A (en) * | 2013-12-18 | 2014-04-23 | 中国石油大学(北京) | Supercritical carbon dioxide abrasive jet flow perforation simulation experiment system |
| CN104863654A (en) * | 2015-04-21 | 2015-08-26 | 中国石油大学(华东) | Device and method for exploitation of terrestrial heat through supercritical carbon dioxide |
| CN104863595A (en) * | 2015-06-09 | 2015-08-26 | 长沙矿冶研究院有限责任公司 | Seabed cobalt-rich crust crushing and collecting integrated device |
| CN106939375A (en) * | 2017-04-10 | 2017-07-11 | 青岛海洋地质研究所 | Deep-sea hydrothermal metal sulfide gathers electrolysis system |
| CN109709134A (en) * | 2018-08-24 | 2019-05-03 | 中国石油大学(华东) | A kind of pit shaft self-loopa heat exchange experimental provision and method |
| CN109026009A (en) * | 2018-10-17 | 2018-12-18 | 中南大学 | A kind of digging head of Deep Sea Minerals cobalt bearing crust |
| CN109899081A (en) * | 2019-04-02 | 2019-06-18 | 中铁工程装备集团有限公司 | Utilize the development machine of supercritical carbon dioxide jet stream broken rock |
| CN215672216U (en) * | 2021-09-23 | 2022-01-28 | 中煤(天津)地下工程智能研究院有限公司 | High-hardness rock soil rapid tunneling mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117167016A (en) * | 2023-09-01 | 2023-12-05 | 中国海洋大学 | By means of supercritical CO 2 Device for realizing efficient collection and transportation of deep sea ores |
| CN117167016B (en) * | 2023-09-01 | 2024-02-13 | 中国海洋大学 | By means of supercritical CO 2 Device for realizing efficient collection and transportation of deep sea ores |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115822604B (en) | 2023-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115822604A (en) | Cobalt-rich crust mining system and method for producing temperature difference effect by carbon dioxide jet | |
| CN107642346A (en) | A kind of non-diagenesis gas hydrates neck eye of sea-bottom shallow, which returns, drags jet recovery method and quarrying apparatus | |
| US9951496B2 (en) | Systems and methods for harvesting natural gas from underwater clathrate hydrate deposits | |
| CN108894755B (en) | Seabed natural gas hydrate exploitation system and method | |
| CN108316907A (en) | It is a kind of to take abrasive material formula hydraulic slotted liner technique drill bit certainly | |
| CN100497080C (en) | Air floating blue-green algae fishing boat | |
| CN115628062B (en) | Deep sea mine car collecting device for inhibiting plume by utilizing carbon dioxide | |
| CN101775974B (en) | Method for exploiting coal bed methane (CBM) by water transportation and pressure relief in butted well | |
| CN108222892A (en) | A kind of quarrying apparatus and method of continuous exploiting ocean gas hydrate | |
| CN102966309B (en) | High-pressure grinding material jet flow drill carriage device | |
| CN102322264B (en) | Gas hydrate exploitation, well completion, collection and conveying platform system | |
| CN114508336B (en) | Drilling, unfreezing and fracturing integrated device and method for soft coal seam | |
| WO2016183974A1 (en) | Liquid nitrogen system and method for nondestructively controlling fire area in coalfield | |
| CN103921216A (en) | Three-phase cavitation abrasive water jet cutting device | |
| CN115773114A (en) | Based on supercritical CO 2 Cobalt-rich crust ore collection device and method with jet flow fracturing effect | |
| CN108060913A (en) | A kind of flammable ice auger formula Mining Equipment in seabed | |
| CN102392646A (en) | Marine gas hydrate electronic-spraying pump composite exploitation method and apparatus | |
| CN109488317B (en) | Novel full-section tunnel boring machine for breaking rock by high-speed particle impact | |
| CN109131433B (en) | Method for quickly removing accumulated snow and icing on bogie of heat-carrying micro-sand jet type high-speed train | |
| CN201221361Y (en) | Connecting downhole fully-mechanized mining and digging machine wind and water mixed spraying apparatus | |
| CN115722360A (en) | Hard seabed erosion system and method combining carbon dioxide and abrasive cavitation jet | |
| TW202018167A (en) | Resource collection system | |
| CN113212672A (en) | Auxiliary ice breaking equipment for polar region icebreaking ship | |
| CN102313288A (en) | Dust deposition removing method and system | |
| CN116291462A (en) | Ore collecting device and method based on Kangda effect |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |