CN-122013723-A - Seabed modified gel injection vehicle for deep sea mining and use method

CN122013723ACN 122013723 ACN122013723 ACN 122013723ACN-122013723-A

Abstract

The invention discloses a seabed modified gel injection vehicle for deep sea mining and a use method thereof, and relates to the technical field of deep sea resource development, wherein the seabed modified gel injection vehicle comprises a vehicle body, a walking chassis, a gel injection mechanism and a driving mechanism, wherein a gel storage cabin is arranged on the vehicle body and is used for storing gel materials; the invention relates to a deep sea mining device, which comprises a vehicle body, a gel injection mechanism, a driving mechanism and a gel injection mechanism, wherein the vehicle body is provided with a bottom, the bottom of the vehicle body is used for supporting the vehicle body to walk on the sea floor, the gel injection mechanism is arranged on the vehicle body and communicated with a gel storage cabin and used for injecting gel materials into surface layer sediments of the sea floor, and the driving mechanism is in transmission connection with the gel injection mechanism and used for driving the gel injection mechanism to execute injection action.

Inventors

DU ZUNFENG
YANG JINGBO
LI XIANG
ZHU HAITAO
ZHU HAIMING
WU JUNLING

Assignees

天津大学

Dates

Publication Date: 20260512
Application Date: 20260310

Claims (10)

1. A seabed modified gel injection vehicle for deep sea mining is characterized by comprising: The vehicle body is provided with a gel storage cabin, the gel storage cabin is used for storing gel materials; The walking chassis is arranged at the bottom of the vehicle body and used for supporting the vehicle body to walk on the seabed; A vision mechanism including a plurality of multi-vision lenses provided at a front portion of the vehicle body; A gel injection mechanism mounted on the vehicle body and in communication with the gel storage compartment for injecting the gel material into the seabed surface sediment, and The driving mechanism is in transmission connection with the gel injection mechanism and is used for driving the gel injection mechanism to execute injection action.
2. The seafloor-modified gel injection vehicle for deep sea mining of claim 1, wherein the gel injection mechanism comprises one or more injection needles aligned in a vehicle body width direction, the injection needles being in communication with the gel storage compartment through a transfer line.
3. The modified gel injection vehicle for the sea bed of deep sea mining according to claim 2, wherein the injection needle comprises a connecting pipeline, an injection cavity, a sliding joint, a sealing rubber ring, a return spring, a pressure valve and a one-way needle, one end of the connecting pipeline is connected and communicated with the conveying pipeline, the sliding joint is slidably sleeved on the outer side of the connecting pipeline, the sliding joint is fixedly connected with the top end of the injection cavity, the sealing rubber ring is arranged in the injection cavity and is slidably and hermetically connected with the inner wall of the injection cavity, the interior of the injection cavity is divided into a return cavity at the upper part and a gel injection cavity at the lower part, one end of the connecting pipeline, which is far away from the conveying pipeline, is fixedly connected with the sealing rubber ring in a sealing manner, and is communicated with the gel injection cavity through the sealing rubber ring, the return spring is sleeved on the outer side of the connecting pipeline, one end of the return spring is fixedly connected with the sliding joint, the other end of the return spring is fixedly connected with the sealing rubber ring, the pressure valve is arranged on the connecting pipeline, extends into one end of the injecting cavity to control the gel, and is used for injecting gel material into the one-way into the injection cavity, and injecting the gel material into the one-way cavity.
4. The seabed modified gel injection vehicle for deep sea mining according to claim 3, wherein the pressure valve comprises a valve body, a piston and a piston spring, the top end of the valve body is fixedly connected with the sealing rubber ring, the piston is in sliding connection with the valve body, the valve body is an inverted circular pipe cap with a plurality of holes on the side surface, the top of the piston is provided with radial arms corresponding to the number of the holes of the valve body, the radial arms are correspondingly penetrated in the holes, the top end of the piston spring is fixedly connected with the radial arms, and the bottom end of the piston spring is fixedly connected with the valve body, so that the piston is provided with a closing position for closing the holes of the valve body and an opening position for opening the holes of the valve body under the action of the piston spring.
5. The seafloor modified gel injection vehicle for deep sea mining according to claim 4, wherein the driving mechanism comprises two injection sliding rails, a first support, a second support, a return radial arm and a driving piece, the two injection sliding rails are arranged on two sides of the vehicle body at intervals in parallel, the injection sliding rails comprise a first sliding groove and a second sliding groove, the first support is fixedly connected with each connecting pipeline, two ends of the first support are respectively and slidably connected with the first sliding groove, the second support is fixedly connected with the outer wall of each injection cavity, two ends of the second support are respectively and slidably connected with the second sliding groove, the driving piece is in transmission connection with the second support, one end of the return radial arm is hinged with the first support, the other end of the return radial arm is rotatably connected with the vehicle body, and the driving piece is used for driving the second support to slide along the second sliding groove to achieve lifting of the injection cavity to complete feeding of the injection cavity, and driving the first support to slide along the first sliding groove to enable the needle to move to the preset seafloor to the reset position of the injection radial arm to achieve the initial gel deposition.
6. The seafloor modified gel injection vehicle for deep sea mining of claim 5, wherein the first chute is a circular arc chute, the center of the first chute is on the rotation axis of the return radial arm, the second chute comprises a first vertical section, a first arc section, a second vertical section and a second arc section which are sequentially connected and form a closed annular chute, the lengths of the first vertical section and the second vertical section are the same, and the radii of the first arc section, the second arc section and the first chute are the same.
7. The seafloor modified gel injection vehicle for deep sea mining according to claim 6, wherein the driving piece comprises a driving source, a driving gear, a driven gear and a plurality of injection cams, the driving source is fixedly connected with the injection sliding rail, the driving gear is fixedly connected with the output end of the driving source, the driving gear is in meshed transmission with the driven gear, two ends of an axle of the driven gear are rotatably connected with the corresponding injection sliding rail, the plurality of injection cams are fixedly arranged on the axle of the driven gear, each injection cam is used for being abutted with the top of the corresponding second bracket to drive the second bracket to slide along the first vertical section and the first circular arc section, and the injection cams are separated from the second bracket when the first bracket slides to the bottom of the first circular arc section.
8. The seabed modification gel injection vehicle for deep sea mining according to claim 7, wherein the seabed modification gel injection vehicle further comprises a depth adjusting mechanism, the conveying pipeline is a gel output hose, the depth adjusting mechanism comprises a depth adjusting groove, a depth adjuster and a depth adjusting arm, the depth adjusting groove is formed in a vehicle body, one end of the depth adjusting arm is slidably connected in the depth adjusting groove, the other end of the depth adjusting arm is fixedly connected with the injection sliding rail, a fixed end of the depth adjuster is fixedly connected with the vehicle body, and an output end of the depth adjuster is fixedly connected with the depth adjusting arm to adjust the height position of the depth adjusting arm.
9. The seabed modified gel injection vehicle for deep sea mining according to claim 1, further comprising a plurality of gel storage and preparation capsules, wherein the gel storage and preparation capsules comprise capsule bodies and self-sealing interfaces arranged at the bottoms of the capsule bodies, the capsule bodies are used for storing high-concentration gel mother liquor or powdery gel raw materials, the capsule bodies can be correspondingly arranged in each capsule placement station, an injection opening is arranged in each capsule placement station, the vehicle body is provided with a plurality of gel output openings, one end of each gel output opening is used for being connected and communicated with a corresponding gel output hose, the other end of each gel output opening is communicated with the corresponding injection opening, the bottoms of the gel storage and preparation capsules are provided with self-sealing interfaces, and the self-sealing interfaces are detachably communicated with the injection openings in the capsule placement stations.
10. Use of a seabed modified gel injection vehicle for deep sea mining according to any of claims 1 to 9, comprising the steps of: probing the seabed environment through a plurality of multi-vision lenses of the vision mechanism to acquire the topography and property information of the seabed surface sediment; And controlling the walking chassis to drive the vehicle body to move to a preset gel injection area based on the acquired topography and property information of the seabed surface layer sediment, and then starting the driving mechanism to drive the gel injection mechanism to execute injection action to inject gel materials in the gel storage cabin into the seabed surface layer sediment.

Description

Seabed modified gel injection vehicle for deep sea mining and use method Technical Field The invention relates to the technical field of deep sea resource development, in particular to a seabed modified gel injection vehicle for deep sea mining and a use method thereof. Background In the current development operation of resources such as deep sea polymetallic nodule, cobalt-rich crust and the like, a mining vehicle arranged on the seabed is generally adopted to mechanically disturb, absorb or scrape the surface layer of the seabed, and the ore pulp is conveyed to a water surface supporting platform by means of a vertical pipe system. However, during this collection, the mining apparatus inevitably creates a strong disturbance to the seabed surface deposits, causing the fine particle deposits to suspend with the body of water and form a plume. The plume can spread with near-bottom flow or middle-layer flow in the bottom boundary layer, which is very likely to cause long-term damage to the submarine ecological environment and the transparency of the water body. In order to reduce the adverse effect of the plume on the environment, various measures are taken in the prior art. For example, attempts to reduce fine particle re-suspension by optimizing the structure of the head, controlling the suction inlet flow rate and the inflow amount, desirably limiting the amount of fine particles generated, and providing a baffle or a cover in the vicinity of the head to limit the initial dispersion range of fine particles. In addition, some techniques have proposed the use of flocculation agents to accelerate plume settling. However, these measures generally only provide a simple buffer effect or a post-hoc protection effect in the local region, and the inhibition effect for long-term suspension and long-distance diffusion of very fine particle deposits is not ideal. Therefore, there is an urgent need for an operating system capable of actively modifying the surface layer deposit of the seabed prior to collection, thereby fundamentally suppressing the generation of plumes. Disclosure of Invention The invention aims to provide a seabed modified gel injection vehicle for deep sea mining and a use method thereof, which are used for solving the problems of the prior art, effectively inhibiting plume generation, improving the overall efficiency of the deep sea mining and protecting the marine ecological environment. In order to achieve the above object, the present invention provides the following solutions: The invention provides a seabed modified gel injection vehicle for deep sea mining, which comprises a vehicle body, a walking chassis, a gel injection mechanism and a driving mechanism, wherein the vehicle body is provided with a gel storage cabin, the gel storage cabin is used for storing gel materials, the walking chassis is arranged at the bottom of the vehicle body and is used for supporting the vehicle body to walk on the seabed, the gel injection mechanism is arranged on the vehicle body and is communicated with the gel storage cabin and is used for injecting the gel materials into seabed surface deposits, and the driving mechanism is in transmission connection with the gel injection mechanism and is used for driving the gel injection mechanism to execute injection actions. Preferably, the gel injection mechanism includes one or more injection needles arranged in the vehicle body width direction, and the injection needles communicate with the gel storage compartment through a delivery line. Preferably, the injection needle comprises a connecting pipeline, an injection cavity, a sliding joint, a sealing rubber ring, a return spring, a pressure valve and a one-way needle, one end of the connecting pipeline is connected and communicated with the conveying pipeline, the sliding joint is slidably sleeved on the outer side of the connecting pipeline, the sliding joint is fixedly connected with the top end of the injection cavity, the sealing rubber ring is arranged in the injection cavity and is in sliding sealing connection with the inner wall of the injection cavity, the injection cavity is internally divided into a return cavity on the upper portion and a glue injection cavity on the lower portion, one end of the connecting pipeline, far away from the conveying pipeline, is in sealing and fixedly connected with the sealing rubber ring, and penetrates through the sealing rubber ring and is communicated with the glue injection cavity, the return spring is sleeved on the outer side of the connecting pipeline, one end of the return spring is fixedly connected with the sliding joint, the other end of the return spring is fixedly connected with the sealing rubber ring, and the pressure valve is arranged at one end of the connecting pipeline, which extends into the glue injection cavity, so as to control gel material to flow into the glue injection cavity in one direction, and one-way, the bottom end of the sealing rubber ring