Deep-sea mining car disturbance plume suppression device

Abstract

The present invention relates to a deep-sea mining car disturbance plume suppression device, comprising a particle separator, a large suction deep-sea high-pressure pump, a plume suction port, and a pipeline, wherein the pipeline is placed around the mining car, and a plurality of plume suction ports are arranged below the pipeline, wherein the pipeline output port is connected to the particle separator through a large suction deep-sea high-pressure pump, and the plume particles generated by the mining car are sucked from the plume suction port to the particle separator through the suction of the large suction deep-sea high-pressure pump, and the particle separator separates the water and particles in the plume and discharges them to the seabed after being compacted, thereby achieving the effect of suppressing the plume sediment of the mining car. The device of the present invention can effectively suppress the plume particles generated by the disturbance of the mining car during operation, realize the separation of large particles and water flow, and then compact the particles and discharge them to the seabed in a concentrated and slow manner, thereby reducing the impact of the plume particles generated by the mining car operation on the seabed organisms and the marine environment.

Description

Technical Field

[0001] The present invention relates to the technical field of plume sediment separation in a mining vehicle development process, in particular to a device for separating plume sediments generated by deep-sea mining vehicles during operations such as cutting and collecting minerals and track indentation. Background Art

[0002] At present, the commonly used particle treatment methods in the mineral processing process include: electrostatic separation, bag filtration, cyclone separation and membrane filtration, among which electrostatic separation is only used for atmospheric electrostatic dust removal and is not suitable for filtering particles in water; the working scene of deep-sea mining vehicles is a mining area 2000-6000 meters underwater, and the filter bag and membrane filtration methods require regular replacement of filter elements, which are not operational. Cyclone separators and self-cleaning membrane filters can be used for underwater solid-liquid separation. However, the spatial size of the plume particles formed by the mining car is large, and the existing separation and filtration equipment still has the following problems: 1) There is a blank of deep-sea mining car plume particle filtration device. In the existing deep-sea mining process, the mechanism and destructive effect of the plume on the seabed ecological environment are still unknown. People have not paid attention to the control of the plume. There is a blank of the plume control device for the mining car, and the relevant basic scientific research is still in the exploratory stage; 2) The traditional filtration device is connected to the pollution source through a pipeline, which cannot meet the suction and separation of particles in seawater. 3) The flow processing capacity of the traditional filtration device is limited. The dimensions of commercial deep-sea mining vehicles are as high as several meters or even more than ten meters. Taking the mining vehicle's travel speed of 0.5m / s as an example, the volume of seawater in the tail plume particulate matter caused by the mining vehicle's operation disturbance is close to hundreds of thousands of cubic meters. The processing capacity of existing separators and filters is far lower than this capacity. Summary of the invention

[0003] The purpose of the present invention is to provide a control device that can effectively suppress the plume flow sediments generated by the operation of a mining car. The device uses a distributed suction port to suck the plume flow sediments, uses a large suction deep-sea high-pressure pump to collect seawater containing particles, and uses a solid-liquid separator or a self-cleaning membrane filter to separate the solid and liquid of the plume flow sediments in the deep sea. The distributed suction port arrangement, the large suction deep-sea high-pressure pump and the unique internal acceleration movement generate a high-speed rotating vortex, thereby efficiently realizing the suction of particles, and accurately separating particles of a specific size in seawater through the solid-liquid separator or the self-cleaning membrane filter.

[0004] To achieve the above-mentioned purpose, the technical solution of the present invention is: a deep-sea mining car disturbance plume suppression device, comprising a particle separator, a large-suction deep-sea high-pressure pump, a plume suction port, and a pipeline. The pipeline is placed around the mining car, and a plurality of plume suction ports are arranged under the pipeline. The pipeline output port is connected to the particle separator through a large-suction deep-sea high-pressure pump. Through the suction of the large-suction deep-sea high-pressure pump, the plume particles generated by the mining car are sucked from the plume suction port to the particle separator. The particle separator separates the water and particles in the plume and discharges them, and then discharges them to the seabed after compaction treatment, thereby achieving the effect of suppressing the plume sediment of the mining car.

[0005] Furthermore, the plume suction ports are arranged in a distributed and array manner.

[0006] Furthermore, the distributedly arranged plume suction ports are located in front and rear of the mine car tracks, and are used for timely suction of plume particles generated by the mine car tracks.

[0007] Furthermore, the array-arranged plume suction ports are located at the rear of the mine car head and are used for timely suction of plume particles generated by the mine car head.

[0008] Furthermore, the shape of the plume suction port 4 gradually becomes smaller from the suction port to the tail.

[0009] Furthermore, the particle separator is a cyclone solid-liquid separator or a self-cleaning membrane filter.

[0010] Furthermore, a centrifuge is provided inside the cyclone-type solid-liquid separator, and the centrifuge causes the water flow to generate a high-speed rotating vortex, which can effectively separate water and solid particles.

[0011] Furthermore, the cyclone solid-liquid separator is used to separate particles with a size greater than 10 μm.

[0012] Furthermore, a self-cleaning filter screen structure is provided inside the self-cleaning membrane filter, which can effectively separate and precipitate solid particles.

[0013] Furthermore, the self-cleaning membrane filter is used to separate particles with a size less than 10 μm.

[0014] The beneficial effects of the present invention are:

[0015] The deep-sea mining car disturbance plume suppression device of the present invention can effectively suppress the plume particles generated by the disturbance of the mining car during operation. By sucking and gathering the plume particles and performing solid-liquid separation, large particles and water flow are separated, and the particles are compacted and concentrated and slowly discharged to the seabed, thereby reducing the impact of the plume particles generated by the mining car on the seabed organisms and the marine environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the positive triaxial side view of the mine car equipped with the deep-sea mine car disturbance plume suppression device;

[0017] Figure 2 It is a schematic diagram of the left side view of a mining vehicle equipped with a deep-sea mining vehicle disturbance plume suppression device;

[0018] Figure 3 It is a bottom view schematic diagram of a mine car equipped with a deep-sea mine car disturbance plume suppression device;

[0019] Figure 4 It is a schematic diagram of the positive triaxial side view of the deep-sea mining vehicle disturbance plume suppression device;

[0020] Figure 5 It is a schematic diagram of the positive three-axis side view of a solid-liquid separator (or a self-cleaning membrane filter) and a large-suction deep-sea high-pressure pump;

[0021] Figure 6 It is a schematic diagram of the positive triaxial side view of the plume suction port;

[0022] In the figure: 1. mine car, 2. mine car head, 3. crawler track, 4. plume suction port, 5. pipeline, 6. solid-liquid separator (or self-cleaning membrane filter), 7. high-suction deep-sea high-pressure pump, 8. solid-liquid separator (or self-cleaning membrane filter) outlet, 9. solid discharge port of solid-liquid separator (or self-cleaning membrane filter). DETAILED DESCRIPTION

[0023] The embodiments of the present invention are further described below in conjunction with the accompanying drawings.

[0024] like Figures 1 to 6 As shown, the deep-sea mining car disturbance plume suppression device of the present invention, as an auxiliary supporting device of the mining car 1, mainly includes a solid-liquid separator (or self-cleaning membrane filter) 6, a large suction deep-sea high-pressure pump 7, a plume suction port 4, a pipeline 5 and other equipment. The pipeline 5 is placed around the mining car 1, and a plurality of plume suction ports 4 are arranged below the pipeline 5. The output port of the pipeline 5 is connected to the solid-liquid separator (or self-cleaning membrane filter) 6 through the large suction deep-sea high-pressure pump 7. Through the suction of the large suction deep-sea high-pressure pump 7, the plume particles generated by the mining car 1 are sucked from the plume suction port 4 to the solid-liquid separator (or self-cleaning membrane filter) 6. The solid-liquid separator (or self-cleaning membrane filter) 6 separates the water and particles in the plume and discharges them to the seabed after compaction treatment, thereby achieving the effect of suppressing the plume sediment of the mining car.

[0025] During the operation of the mine car 1, a large amount of plume particles are mainly generated in front and behind the mine car head 2 and the crawler 3. Figure 3As shown, the plume suction ports 4 of the deep-sea mining car disturbance plume suppression device are arranged in a distributed and arrayed manner. The distributed plume suction ports are located at the front and rear positions of the mining car crawler 3 (front and rear crawler), and the plume particles generated by the crawler 3 are sucked in time. The array-type plume suction ports are located at the rear of the mining car head 2, and the plume particles generated by the mining car head 2 are sucked in time. Figure 5 As shown, the plume suction port 4 has an appearance that gradually becomes smaller from the suction port to the tail (such as a trumpet shape, but not limited to a trumpet shape), which can effectively maintain the suction speed while increasing the suction area, and more efficiently suck the plume particles generated by the mining car. At the same time, the suction speed and channel opening and closing can be controlled by controlling the suction port size of each plume suction port, and real-time and efficient suction can be performed according to the construction environment.

[0026] like Figure 3 As shown, through the action of the high-suction deep-sea high-pressure pump 7, each plume suction port 4 inputs the sucked plume particles into the solid-liquid separator (or self-cleaning membrane filter) 6, which can be a cyclone solid-liquid separator or a self-cleaning membrane filter. In the cyclone solid-liquid separator, after the plume particles enter the solid-liquid separator, the water flow is subjected to the internal centrifuge to generate a high-speed rotating vortex, and under the action of centrifugal force, the water and solid particles can be effectively separated; in the self-cleaning membrane filter, the internal self-cleaning filter structure can effectively separate and precipitate the solid particles. The cyclone solid-liquid separator can achieve a separation rate of 98% for particles larger than 20μm, a separation rate of 85% for particles of 10-20μm, and a separation rate of 75% for particles of 5-10μm, but the separation efficiency for particles below 5μm is poor. The self-cleaning membrane filter can achieve an absorption rate of 99.5% for particles of 0-10μm, but it is easy to cause blockage for particles larger than 10μm. Therefore, for deep-sea mining areas where the sediment particle size is mainly >10μm, a cyclone separator is used; for particles with a size of <10μm, a self-cleaning membrane filter is used. The clean water after separation is discharged from the top water outlet 8 of the solid-liquid separator (or self-cleaning membrane filter) 6, and the separated solid particles are discharged from the solid discharge port 9 of the solid-liquid separator (or self-cleaning membrane filter) 6. Finally, the solid particles are compacted and slowly discharged to the seabed, thereby achieving the purpose of suppressing the plume flow sediment of the mining car.

Claims

1. A deep-sea mining car disturbance plume suppression device, Features: It comprises a particle separator, a large-suction deep-sea high-pressure pump, a plume suction port, and a pipeline. The pipeline is placed around the mine car. A plurality of plume suction ports are arranged under the pipeline. The output port of the pipeline is connected to the particle separator through a large-suction deep-sea high-pressure pump. Through the suction of the large-suction deep-sea high-pressure pump, the plume particles generated by the mine car are sucked from the plume suction port to the particle separator. The particle separator separates the water and particles in the plume and discharges them. After compaction, they are discharged to the seabed, thereby achieving the effect of suppressing the plume sediment of the mine car. The plume suction ports are distributed and arranged in an array. The shape of the plume suction ports is gradually reduced from the suction port to the tail.

2. The deep-sea mining vehicle disturbance plume suppression device according to claim 1, Features: The distributedly arranged plume suction ports are located in front and rear of the mine car tracks and are used for timely suction of plume particles generated by the mine car tracks.

3. The deep-sea mining vehicle disturbance plume suppression device according to claim 1, Features: The array-arranged plume suction ports are located at the rear of the mine car head and are used for timely suction of plume particles generated by the mine car head.

4. The deep-sea mining vehicle disturbance plume suppression device according to claim 1, Features: The particle separator is a cyclone solid-liquid separator or a self-cleaning membrane filter.

5. The deep-sea mining vehicle disturbance plume suppression device according to claim 4, Features: The cyclone type solid-liquid separator is internally provided with a centrifuge, which causes the water flow to generate a high-speed rotating vortex, thereby effectively separating water and solid particles.

6. The deep-sea mining vehicle disturbance plume suppression device according to claim 5, Features: The cyclone solid-liquid separator is used for separating particles with a size greater than 10 μm.

7. The deep-sea mining vehicle disturbance plume suppression device according to claim 4, Features: The self-cleaning membrane filter is provided with a self-cleaning filter screen structure inside, which can effectively separate and precipitate solid particles.

8. The deep-sea mining vehicle disturbance plume suppression device according to claim 7, Features: The self-cleaning membrane filter is used for separating particles with a size less than 10 μm.

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