Bubble barrier plume suppression device suitable for deep-sea mining operation

Abstract

The invention relates to the technical field of deep-sea mining, and discloses a bubble barrier plume restraining device suitable for deep-sea mining operation. The bubble barrier plume restraining device comprises an air source control unit, a posture adjusting conveying pipe, an air conveying relay box, a mining vehicle, a plurality of flow dividing air conveying hoses, a communication cable and a plurality of seabed bubble releasing units. The gas source control unit is communicated with the gas transmission relay box through the posture adjusting transmission pipe, the gas transmission relay box is connected with the multiple seabed bubble release units through the multiple flow dividing gas transmission hoses, the multiple seabed bubble release units define a bubble barrier, and the mining vehicle is located in the bubble barrier. The mining vehicle, the communication cable, the gas transmission relay box, the posture adjustment transmission pipe and the gas source control unit are sequentially connected. According to the method, plume diffusion in deep-sea mining operation is inhibited, and damage of the deep-sea mining operation to the marine environment is reduced, so that the operation efficiency of the seabed bubble barrier is improved; and the posture of the posture adjusting transmission pipe is always maintained in a safe range.

Description

Technical Field

[0001] The present invention relates to the technical field of deep sea mining, and in particular to a bubble barrier plume suppression device suitable for deep sea mining operations. Background Art

[0002] At present, the mainstream type of mining vehicles is still crawler mining vehicles. In the process of deep-sea mining, the cutting, crushing, grabbing and other operations of crawler mining vehicles on ore and the crawler driving process will cause a large amount of sediment particles to be generated, and the tailings water discharged at the tail during the mining operation. A large number of sediment particles fall into the tailings water to form a preliminary plume. The initially formed plume evolves in the near field under the combined action of initial momentum, mining vehicle wake and negative buoyancy.

[0003] As the particles in the plume continue to settle, when the particle concentration is below a certain threshold, the near-field evolution of the plume changes to the mid- and far-field evolution dominated by the ocean flow, resulting in a significant increase in the spatial scale of the plume and a significant increase in the suspension time of the particles. It can be seen that if the formation or evolution of the plume in deep-sea mining operations is not intervened, it will have a serious impact on the marine water environment. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the above prior art and to provide a bubble barrier plume suppression device suitable for deep-sea mining operations.

[0005] The objective of the present invention is achieved through the following technical solutions: A bubble barrier plume suppression device suitable for deep-sea mining operations comprises a gas source control unit, a posture adjustment transmission pipe, a gas transmission relay box, a mining vehicle, a plurality of branch gas transmission hoses, a communication cable and a plurality of seabed bubble release units, the gas source control unit is connected to the gas transmission relay box through the posture adjustment transmission pipe, the gas transmission relay box is connected to a plurality of the seabed bubble release units through a plurality of the branch gas transmission hoses, respectively, a plurality of the seabed bubble release units form a bubble barrier, the mining vehicle is located in the bubble barrier, the mining vehicle, the communication cable, the gas transmission relay box, the posture adjustment transmission pipe and the gas source control unit are connected in sequence.

[0006] A better option is that the air source control unit includes a screw compressor, a wake data secondary processor, an overall control window, a controllable main air valve and a mining ship. The screw compressor, the wake data secondary processor and the overall control window are all installed on the top of the mining ship, and the controllable main air valve is installed on the bottom of the mining ship. The overall control window is respectively connected to the screw compressor, the wake data secondary processor, the controllable main air valve, the attitude adjustment transmission pipe and the gas transmission relay box. The screw compressor is connected to the attitude adjustment transmission pipe through the controllable main air valve, and the wake data secondary processor is connected to the attitude adjustment transmission pipe.

[0007] A better choice is that the attitude adjustment transmission pipe includes a flexible joint, a rigid transmission riser, an embedded non-metallic optoelectronic composite cable and a plurality of annular dynamic positioners, the gas source control unit is connected to one end of the rigid transmission riser through the flexible joint, the other end of the rigid transmission riser is connected to the gas transmission relay box, the gas source control unit is connected to one end of the embedded non-metallic optoelectronic composite cable, the other end of the embedded non-metallic optoelectronic composite cable passes through the rigid transmission riser and is respectively connected to the gas transmission relay box and the communication cable, a plurality of the annular dynamic positioners are installed on the outer wall of the rigid transmission riser, and a plurality of the annular dynamic positioners are connected to the gas source control unit.

[0008] A better option is that the flexible joint includes a first connecting ring, a flexible tube and a second connecting ring, the first connecting ring is connected to the second connecting ring through the flexible tube, the first connecting ring is connected to the gas source control unit, and the second connecting ring is connected to the rigid transmission riser.

[0009] A better choice is that the gas transmission relay box includes an outer box body, multiple branch pipes in the box, multiple vortex meters for the branch pipes in the box and multiple controllable gas valves for the branch pipes in the box. The outer box body is provided with a main pipe, one end of the main pipe is connected to the attitude adjustment transmission pipe, the other end of the main pipe is respectively connected to one end of the multiple branch pipes in the box, the other ends of the multiple branch pipes in the box are respectively connected to the multiple diversion gas transmission hoses, the multiple vortex meters for the branch pipes in the box are respectively installed on the multiple branch pipes in the box, the multiple controllable gas valves for the branch pipes in the box are respectively installed on the multiple branch pipes in the box, the multiple vortex meters for the branch pipes in the box and the multiple controllable gas valves for the branch pipes in the box are all connected to the attitude adjustment transmission pipe, and the communication cable is connected to the outer box body.

[0010] A better choice is that the seabed bubble release unit includes a porous transverse tube, a fixed bracket and a guide bracket, the fixed bracket is respectively connected to the two ends of the porous transverse tube, the guide bracket is sleeved on the outer wall of the porous transverse tube, the porous transverse tube is connected to the diversion gas transmission hose, and the porous transverse tube forms a bubble barrier.

[0011] The present invention has the following advantages and beneficial effects compared with the prior art:

[0012] The present invention suppresses the diffusion of plume flow in deep-sea mining operations and reduces the damage of deep-sea mining operations to the marine environment through an air source control unit, an attitude adjustment transmission pipe, a gas transmission relay box, a mining vehicle, multiple branch gas transmission hoses, a communication cable and multiple seabed bubble release units. It can also optimize the strength distribution of the bubble barrier and reduce the operating energy consumption of the bubble barrier, thereby improving the operating efficiency of the seabed bubble barrier; and the attitude of the attitude adjustment transmission pipe is always maintained within a safe range, thereby improving the reliability and stability of the attitude adjustment transmission pipe under complex sea conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of a bubble barrier plume suppression device suitable for deep-sea mining operations according to the present invention;

[0014] Figure 2 It is a side view of a bubble barrier plume suppression device suitable for deep sea mining operations according to the present invention;

[0015] Figure 3 for Figure 2 A local enlarged view at point A;

[0016] Figure 4 It is a schematic diagram of an air source control unit of a bubble barrier plume suppression device suitable for deep-sea mining operations according to the present invention;

[0017] Figure 5 It is a schematic diagram of an air source control unit of a bubble barrier plume suppression device suitable for deep-sea mining operations according to the present invention;

[0018] Figure 6 It is a schematic diagram of a posture adjustment transmission pipe of a bubble barrier plume suppression device suitable for deep-sea mining operations according to the present invention;

[0019] Figure 7 for Figure 6 A local enlarged view at point B;

[0020] Figure 8 for Figure 7 A cross-sectional view at point C;

[0021] Fig. 9 It is a schematic diagram of a flexible joint of a bubble barrier plume suppression device suitable for deep-sea mining operations according to the present invention;

[0022] Fig.10 It is a schematic diagram of a gas transmission relay box of a bubble barrier plume suppression device suitable for deep-sea mining operations according to the present invention;

[0023] Fig.11 It is a cross-sectional view of a gas transmission relay box of a bubble barrier plume suppression device suitable for deep-sea mining operations according to the present invention;

[0024] Fig.12 It is a seabed bubble release unit of a gas transmission relay box of a bubble barrier plume suppression device suitable for deep-sea mining operations of the present invention;

[0025] The markings of the components in the attached drawings are as follows: 1-gas source control unit; 101-screw compressor; 102-wake data secondary processor; 103-overall control window; 104-controllable main gas valve; 105-mining ship; 2-attitude adjustment transmission pipe; 21-flexible joint; 211-first connecting ring; 212-flexible pipe; 213-second connecting ring; 22-rigid transmission riser; 23-embedded non-metallic optoelectronic composite cable; 24-annular dynamic positioner; 3-gas transmission relay box; 301-outer box body; 302-branch pipeline in the box; 303-branch pipe eddy current meter in the box; 304-controllable gas valve in the box; 305-main pipe; 4-diversion gas transmission hose; 5-communication cable; 6-subsea bubble release unit; 601-porous horizontal pipe; 602-fixed bracket; 603-guide bracket. DETAILED DESCRIPTION

[0026] The purpose of the present invention is further described in detail below with reference to the accompanying drawings and specific examples. The examples cannot be described one by one here, but the implementation methods of the present invention are not therefore limited to the following examples.

[0027] like Figure 1 and 2 As shown, a bubble barrier plume suppression device suitable for deep-sea mining operations includes a gas source control unit 1, a posture adjustment transmission pipe 2, a gas transmission relay box 3, a mining vehicle, four diversion gas transmission hoses 4, a communication cable 5 and four seabed bubble release units 6. The gas source control unit 1 is located on the sea surface, the gas source control unit 1 is connected to the upper end of the posture adjustment transmission pipe 2, and the lower end of the posture adjustment transmission pipe 2 is connected to the upper end of the gas transmission relay box 3. The four sides of the gas transmission relay box 3 are respectively connected to the four seabed bubble release units 6 through four diversion gas transmission hoses 4, and the four seabed bubble release units 6 surround a square box-shaped bubble barrier. The gas source control unit 1 is connected to the gas transmission relay box 3 through the posture adjustment transmission pipe 2, the gas transmission relay box 3 is connected to the communication cable 5, and the communication cable 5 is connected to the mining vehicle, and the mining vehicle mines in the bubble barrier. The posture adjustment transmission pipe 2 and the gas transmission relay box 3 are both controlled by the gas source control unit 1.

[0028] The gas source control unit 1 is used to provide sufficient and controllable compressed gas for the seabed bubble release unit 6, process the data transmitted from the mining vehicle, and control the posture of the posture adjustment transmission pipe and the opening and closing of the gas transmission relay box. The posture adjustment transmission pipe 2 is used to transmit compressed gas, transmit data and automatically adjust its own real-time posture, thereby improving reliability and stability under complex sea conditions. The gas transmission relay box 3 is used to evenly distribute the compressed gas to the diversion gas transmission hose 4, and can control and monitor the flow of compressed gas. The mining vehicle is used to excavate minerals on the seabed and collect real-time data on the size and direction of the tail gas generated by itself. The diversion gas transmission hose 4 is a non-adhesive flexible pipe used to transmit compressed air from the gas transmission relay box 3 to each seabed bubble release unit 6. Through its flexible deformation performance, the reliability and stability of the pipeline structure are improved. The communication cable 5 is used to transmit the real-time data on the size and direction of the wake generated by the mining vehicle operation to the gas source control unit 1 of the mining ship 105. The seabed bubble release unit 6 is used to arrange the position for releasing bubbles, which rise from the depth of the seabed to form a square box-shaped bubble barrier, which ultimately plays a role in suppressing the diffusion of the plume wake of the mining vehicle.

[0029] Four seabed bubble release units 6 are laid on the seabed surface of the mining operation area, and compressed gas is provided by a screw compressor 101 on a mining ship 105. Gas is supplied to the four seabed bubble release units 6 successively through an attitude adjustment transmission pipe 2, a gas relay box 3, and a diversion gas hose 4. A single-sided bubble barrier is generated by a single porous transverse pipe 601. Finally, a square box-shaped bubble barrier can be formed by four seabed bubble release units 6, thereby suppressing the diffusion of plume flow in deep-sea mining operations and reducing the damage of deep-sea mining operations to the marine environment.

[0030] like Figure 3-5 As shown, the air source control unit 1 includes a screw compressor 101, a wake data secondary processor 102, a general control window 103, a controllable total air valve 104 and a mining ship 105. The screw compressor 101, the wake data secondary processor 102 and the general control window 103 are all installed on the top of the mining ship 105, and the mining ship 105 is suspended on the sea surface. The controllable total air valve 104 is installed on the bottom of the mining ship 105. The general control window 103 is connected to the screw compressor 101, the wake data secondary processor 102, the embedded non-metallic optoelectronic composite cable 23 of the attitude adjustment transmission pipe 2 and the annular dynamic positioner 24 respectively. The screw compressor 101 is connected to the flexible joint 21 of the attitude adjustment transmission pipe 2 through the controllable total air valve 104. The wake data secondary processor 102 is connected to the embedded non-metallic optoelectronic composite cable 23 of the attitude adjustment transmission pipe 2.

[0031] The screw compressor is provided by KAESER KOMPRESSOREN (Kaiser, Germany), which realizes efficient and economical air pumping. The wake data secondary processor 102 is a single-chip microcomputer, which is used to analyze and process the real-time data of the wake size and direction generated by the mining vehicle operation transmitted from the mining vehicle (not shown in this figure) through the communication cable 5 and the embedded non-metallic optoelectronic composite cable 23 of the attitude adjustment transmission tube 2, and generate a visualization file. The overall control window 103 is a computer, which views the three-dimensional real-time performance of the visualized wake generated by the analysis of the wake data secondary processing system, and performs human-computer interaction to realize the monitoring and manual control of the controllable main air valve 104 and the controllable air valve 304 of the branch pipe in the box, and can automatically control the direction and size of the annular dynamic positioner of the attitude adjustment transmission tube, thereby automatically adjusting the real-time attitude of the attitude adjustment transmission tube. If combined with artificial intelligence means, the evolution law of the wake can be subsequently predicted, and the bubble barrier control suggestion of the square box type can be given, thereby realizing intelligent control. The controllable main gas valve 104 is opened and closed by manual or automatic control of the overall control window 103, thereby controlling the total flow of gas in the attitude adjustment transmission pipe 2. The mining ship 105 is used to carry the screw compressor 101, the wake data secondary processor 102 and the overall control window 103, and store minerals.

[0032] A controllable main gas valve 104 is arranged on the gas source control unit 1, and a controllable gas valve 304 for the branch pipe in the box is arranged inside the gas transmission relay box 3. The mining vehicle is equipped with a SWT-IPSC-4KFP deep-sea ultra-high-definition camera, which can collect real-time data on the size and direction of the wake generated by the mining vehicle operation. The real-time data is transmitted to the wake data secondary processor 102 of the gas source control unit 1 by using the embedded non-metallic optoelectronic composite cable 23. The wake data secondary processor 102 is used to analyze and generate a visualization file of the wake evolution data, which can be viewed by using the overall control window 103. Watch the visualized three-dimensional real-time performance of the wake and conduct human-computer interaction. According to the real-time development trend of the wake, the controllable main air valve 104 and the controllable air valve 304 of the branch pipe in the box can be manually controlled to optimize the strength distribution of the square box-type bubble barrier and reduce the operating energy consumption of the square box-type bubble barrier, thereby improving the operating efficiency of the seabed bubble barrier. If combined with artificial intelligence means, simulation evolution can be carried out to realize intelligent prediction of the evolution law of the wake and intelligent optimization of the strength distribution of the square box-type bubble barrier, which will further improve the operating efficiency of the seabed bubble barrier.

[0033] like Figure 6-8As shown, the attitude adjustment transmission pipe 2 includes a flexible joint 21, a rigid transmission riser 22, four embedded non-metallic optoelectronic composite cables 23 and seven annular dynamic positioners 24. The screw compressor 101 of the air source control unit 1 is connected to the upper end of the flexible joint 21. A ventilation channel and four cable channels are provided in the rigid transmission riser 22, and the four cable channels are respectively arranged around the ventilation channel. The lower end of the flexible joint 21 is connected to the upper end of the ventilation channel of the rigid transmission riser 22. The lower end of the ventilation channel of the rigid transmission riser 22 is connected to the main pipe 305 of the gas transmission relay box 3 by socket connection. The four embedded non-metallic optoelectronic composite cables 23 pass through the four cable channels respectively. The upper ends of the four embedded non-metallic optoelectronic composite cables 23 are connected to the overall control window 103 and the wake data secondary processor 102 of the gas source control unit 1, and the lower ends of the four embedded non-metallic optoelectronic composite cables 23 are respectively connected to the four in-box branch pipe eddy current meters 303 and the four in-box branch pipe controllable gas valves 304 of the gas transmission relay box 3, and the communication cable 5. Seven annular dynamic positioners 24 are evenly arranged on the outer wall of the rigid transmission riser 22, and the seven annular dynamic positioners 24 are controlled by the overall control window 103 of the gas source control unit 1.

[0034] The flexible joint 21 is used to connect the rigid transmission riser 22 and the controllable main gas valve 104 in a flexible manner, so as to avoid the swing of the rigid transmission riser 22, which may cause the controllable main gas valve 104 and the rigid transmission riser 22 to break. The rigid transmission riser 22 is a rigid circular cross-section hollow pipe vertically suspended directly below the mining ship 105, which plays the role of air guide and support structure; the embedded non-metallic optoelectronic composite cable 23 can transmit communication data between the gas source control unit 1 and the gas transmission relay box 3; the annular dynamic positioner 2 is wirelessly connected to the overall control window of the gas source control unit 1, and can adjust the real-time posture of the transmission pipe 2 according to the posture to perform jet recoil in different directions and speeds, so that the posture of the rigid transmission riser 22 is always maintained within a safe range, thereby improving the reliability and stability of the gas transmission riser in complex sea conditions.

[0035] like Fig. 9 As shown, the flexible joint 21 includes a first connection ring 211, a flexible tube 212 and a second connection ring 213. The first connection ring 211, the flexible tube 212 and the second connection ring 213 are connected in sequence, and the flexible tube 212 is in a gourd shape. The first connection ring 211 is connected to the screw compressor 101 of the air source control unit 1, and the second connection ring 213 is connected to the upper end of the rigid transmission riser 22 of the rigid transmission riser 22.

[0036] like Fig.10 and 11As shown, the gas transmission relay box 3 includes an outer box body 301, four branch pipes 302 in the box, four vortex flow meters 303 for the branch pipes in the box, and four controllable gas valves 304 for the branch pipes in the box. A main pipe 305 is provided in the middle of the outer box body 301, and the upper end of the main pipe 305 is located at the top of the outer box body 301. The upper end of the main pipe 305 is connected to the lower end of the rigid transmission riser 22 of the attitude adjustment transmission pipe 2. The lower end of the main pipe 305 is located inside the outer box body 301, and the lower end of the main pipe 305 is respectively connected to one end of the four branch pipes 302 in the box, and the angles between the four branch pipes 302 in the box and the main pipe 305 are all 45°. The other ends of the four branch pipes 302 in the box are respectively connected to four diversion gas transmission hoses 4. Each branch gas transmission hose 4 is respectively installed with an in-box branch pipe vortex meter 303 and an in-box branch pipe controllable gas valve 304. The four in-box branch pipe vortex meters 303 and the four in-box branch pipe controllable gas valves 304 are connected to the overall control window 103 of the gas source control unit 1 through the embedded non-metallic optoelectronic composite cable 23 of the attitude adjustment transmission tube 2. The outer box body 301 is connected to the communication cable 5, and the communication cable 5 is connected to the embedded non-metallic optoelectronic composite cable 23 through the cable in the outer box body 301.

[0037] The outer box body 301 is a hollow thin-walled cylinder with a diameter larger than the rigid transmission riser 22, which supports the structure of the gas transmission relay box 3 and protects its internal components. The branch pipe 302 in the box plays a role in diversion. The vortex flow meter 303 in the box branch plays a role in monitoring the diversion air flux. The controllable air valve 304 in the box branch plays a role in controlling the branch flow, which is manually controlled or automatically controlled by the overall control window 103.

[0038] As shown in Figure 12, each seabed bubble release unit 6 includes a porous transverse tube 601, two fixed brackets 602 and fourteen guide brackets 603. The two fixed brackets 602 are respectively connected to the two ends of the porous transverse tube 601, and the middle of the porous transverse tube 601 is connected to the diversion gas hose 4. The fourteen guide brackets 603 are sleeved on the outer wall of the porous transverse tube 601, and the fourteen guide brackets 603 are evenly distributed on the porous transverse tube 601, and the fourteen guide brackets 603 are fixed to the seabed. A row of evenly distributed exhaust holes is provided on the porous transverse tube 601, and the exhaust holes are used to eject bubbles.

[0039] The porous transverse tube 601 is used to evenly distribute and spray the compressed gas to form a single-sided bubble barrier. The four single-sided bubble barriers thus form a nearly closed square box-shaped bubble barrier. The lower part of the fixing bracket 602 is driven into the seabed, and the upper part is exposed in the seawater, and is used to fix the porous transverse tube 601 on the seabed. The guide bracket 603 plays a role in strengthening and fixing the porous transverse tube 601.

[0040] A control method of a bubble barrier plume suppression device suitable for deep-sea mining operations in this embodiment includes the following steps:

[0041] S1, collecting the real-time posture of the posture adjustment transmission tube 2 and feeding it back to the overall control window 103, the overall control window 103 controls each annular dynamic positioner 24 to perform jet recoil in different directions and speeds, so that the posture of the posture adjustment transmission tube 2 is always maintained within a safe range;

[0042] S2, collecting the size and direction data of the exhaust produced by the mining vehicle and feeding it back to the wake data secondary processor 102, which analyzes and generates a visualization file of the wake evolution data;

[0043] S3, the wake data secondary processor 102 transmits the generated wake evolution data visualization file to the overall control window 103, and the operator views the generated wake evolution data visualization file;

[0044] S4. The operator adjusts the controllable main air valve 104 and the controllable air valve 304 of the branch pipe in the box according to the generated wake evolution data visualization file, so as to control the intensity distribution of the bubble barrier generated by the four seabed bubble release units 6, thereby reducing the operating energy consumption of the square box-type bubble barrier and improving the operating efficiency of the seabed bubble barrier.

[0045] Effects of a bubble barrier plume suppression device suitable for deep-sea mining operations in this embodiment:

[0046] First, in order to meet the demand for suppressing the diffusion of plume flow in deep-sea mining operations, four seabed bubble release units 6 are laid on the seabed surface of the mining operation area, and the screw compressor 101 on the mining ship 105 is used to provide compressed gas, which is successively supplied to the four seabed bubble release units 6 through the attitude adjustment transmission pipe 2, the gas relay box 3, and the diversion gas hose 4. A single-sided bubble barrier is generated by a single porous horizontal pipe 601, and a square box-shaped bubble barrier can also be formed by four seabed bubble release units 6, thereby suppressing the diffusion of plume flow in deep-sea mining operations.

[0047] Second, in view of the efficiency requirements of the submarine bubble barrier operation, a controllable main gas valve 104 is set on the mining ship 105, and a controllable gas valve 304 of the branch pipe in the box is set inside the gas transmission relay box 3. On the premise that the mining vehicle is equipped with a sensor that can obtain the initial parameter data of the wake generation, the embedded non-metallic optoelectronic composite cable 23 in the rigid transmission riser 22 is used to transmit the real-time data of the wake size and direction generated by the mining vehicle operation to the gas source control unit 1, and the wake data secondary processor 102 is used to analyze and generate a visualization file of the wake evolution data, and the overall control window 103 is used to generate the wake evolution data visualization file. View the real-time three-dimensional performance of the visualized wake and conduct human-computer interaction. According to the real-time development trend of the wake, the controllable main air valve 104 and the controllable air valve 304 of the branch pipe in the box can be manually controlled to optimize the strength distribution of the square box-type bubble barrier and reduce the operating energy consumption of the square box-type bubble barrier, thereby improving the operating efficiency of the seabed bubble barrier. If combined with artificial intelligence means, simulated evolution can be performed to achieve intelligent prediction of the evolution law of the wake and intelligent optimization of the strength distribution of the square box-type bubble barrier, which will further improve the operating efficiency of the seabed bubble barrier.

[0048] Third, in order to meet the reliability and stability requirements of the attitude adjustment transmission pipe 2 under complex sea conditions, an annular dynamic positioner 24 is provided on the attitude adjustment transmission pipe 2, that is, the annular dynamic positioner 24 is evenly arranged on the outside of the pipe wall of the rigid transmission riser 22 along the pipe length direction, and jet recoil in different directions and speeds can be performed according to the real-time attitude of the rigid transmission riser 22, so that the attitude of the rigid transmission riser 22 is always maintained within a safe range, thereby improving the reliability and stability of the attitude adjustment transmission pipe 2 under complex sea conditions.

[0049] The above specific implementation modes are preferred embodiments of the present invention and cannot be used to limit the present invention. Any other changes or other equivalent replacement methods that do not deviate from the technical solution of the present invention are included in the protection scope of the present invention.

Claims

1. A bubble barrier plume suppression device suitable for deep sea mining operations, characterized in that: It includes a gas source control unit, a posture adjustment transmission pipe, a gas transmission relay box, a mining vehicle, multiple branch gas transmission hoses, a communication cable and multiple seabed bubble release units. The gas source control unit is connected to the gas transmission relay box through the posture adjustment transmission pipe, and the gas transmission relay box is connected to the multiple seabed bubble release units through the multiple branch gas transmission hoses respectively. The multiple seabed bubble release units form a bubble barrier. The mining vehicle is located in the bubble barrier. The mining vehicle, the communication cable, the gas transmission relay box, the posture adjustment transmission pipe and the gas source control unit are connected in sequence.

2. A bubble barrier plume suppression device suitable for deep sea mining operations according to claim 1, characterized in that: The air source control unit includes a screw compressor, a wake data secondary processor, an overall control window, a controllable main air valve and a mining ship. The screw compressor, the wake data secondary processor and the overall control window are all installed on the top of the mining ship, and the controllable main air valve is installed on the bottom of the mining ship. The overall control window is respectively connected to the screw compressor, the wake data secondary processor, the controllable main air valve, the attitude adjustment transmission pipe and the gas transmission relay box. The screw compressor is connected to the attitude adjustment transmission pipe through the controllable main air valve, and the wake data secondary processor is connected to the attitude adjustment transmission pipe.

3. The bubble barrier plume suppression device suitable for deep sea mining operations according to claim 1, characterized in that: The attitude adjustment transmission pipe includes a flexible joint, a rigid transmission riser, an embedded non-metallic optoelectronic composite cable and a plurality of annular dynamic positioners; the gas source control unit is connected to one end of the rigid transmission riser through the flexible joint; the other end of the rigid transmission riser is connected to the gas transmission relay box; the gas source control unit is connected to one end of the embedded non-metallic optoelectronic composite cable; the other end of the embedded non-metallic optoelectronic composite cable passes through the rigid transmission riser and is respectively connected to the gas transmission relay box and the communication cable; a plurality of annular dynamic positioners are installed on the outer wall of the rigid transmission riser; and a plurality of annular dynamic positioners are connected to the gas source control unit.

4. The bubble barrier plume suppression device suitable for deep sea mining operations according to claim 3, characterized in that: The flexible joint includes a first connecting ring, a flexible tube and a second connecting ring. The first connecting ring is connected to the second connecting ring through the flexible tube. The first connecting ring is connected to the gas source control unit, and the second connecting ring is connected to the rigid transmission riser.

5. The bubble barrier plume suppression device suitable for deep sea mining operations according to claim 1, characterized in that: The gas transmission relay box includes an outer box body, multiple branch pipes in the box, multiple vortex meters for the branch pipes in the box and multiple controllable gas valves for the branch pipes in the box. The outer box body is provided with a main pipe, one end of the main pipe is connected to the attitude adjustment transmission pipe, the other end of the main pipe is respectively connected to one end of the multiple branch pipes in the box, the other ends of the multiple branch pipes in the box are respectively connected to the multiple diversion gas transmission hoses, the multiple vortex meters for the branch pipes in the box are respectively installed on the multiple branch pipes in the box, the multiple controllable gas valves for the branch pipes in the box are respectively installed on the multiple branch pipes in the box, the multiple vortex meters for the branch pipes in the box and the multiple controllable gas valves for the branch pipes in the box are all connected to the attitude adjustment transmission pipe, and the communication cable is connected to the outer box body.

6. The bubble barrier plume suppression device suitable for deep sea mining operations according to claim 1, characterized in that: The seabed bubble release unit includes a porous transverse tube, a fixed bracket and a guide bracket, the fixed bracket is respectively connected to the two ends of the porous transverse tube, the guide bracket is sleeved on the outer wall of the porous transverse tube, the porous transverse tube is connected to the diversion gas transmission hose, and the porous transverse tube forms a bubble barrier.

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