Deep sea mineral particle hydraulic collection experiment platform

Abstract

The utility model discloses a hydraulic collection experiment platform for deep sea mineral particles. The hydraulic collection experiment platform comprises a water tank and a particle platform, a movable particle platform is arranged in the water tank; the particle platform comprises a platform surface, a lifting mechanism, a sensor moving mechanism, a three-dimensional force sensor and mineral particles; lifting mechanisms are connected to the four corners of the table top correspondingly, and each lifting mechanism comprises a vertically-arranged lifting lead screw and a lifting motor for driving the lead screw to rotate; the sensor moving mechanism is a horizontal electric screw rod mechanism, two ends of the sensor moving mechanism are fixed at the bottom end of the table top, a moving block is connected with a screw rod, and a slotted hole is formed in the table top corresponding to the screw rod; the three-dimensional force sensor is fixed on the moving block; a high-rigidity high-strength screw rod is arranged on the three-dimensional force sensor, a slender rod penetrates out of a long round hole of the table top upwards, and mineral particles are arranged at the top end of the slender rod in a suspended mode. According to the platform, accurate data of underwater collection operation technical parameters such as particle stress, a movement track and a hydraulic flow field are obtained on the basis of simulating the hydraulic collection operation working condition of deep sea mineral particles.

Description

Technical Field

[0001] The utility model belongs to the technical field of deep sea mining, in particular to a deep sea mineral particle hydraulic collection experimental platform and an experimental method thereof. Background Art

[0002] With the development of industrial economy, the demand for mineral resources in countries around the world is growing, and the supply of land resources is gradually insufficient. Countries have begun to pay attention to the exploitation of deep-sea mineral resources. The deep sea is currently a key development area in my country. Deep-sea mining technology is the key to realizing the development of deep-sea mineral resources.

[0003] The basic research and development of deep-sea mining technology needs to be tested and verified, but the ocean conditions and seabed environment are very complex, and the cost of offshore field tests is huge. The existing laboratories lack basic research and testing equipment, especially in the hydraulic collection of mineral particles. The test conditions are not perfect, and some test verification work cannot be carried out.

[0004] At present, most hydraulic acquisition experimental platforms are mainly based on single mechanism function and single parameter testing, and the data obtained are relatively simple and the data accuracy is poor. There is no complete basic theoretical research platform for deep-sea mineral particle hydraulic acquisition; when conducting basic theoretical research on key technologies, it is difficult to obtain hydraulic acquisition dynamics and trajectory data and verify the data during offshore field tests. Utility Model Content

[0005] The utility model aims to provide a deep-sea mineral particle hydraulic collection experimental platform based on simulating the hydraulic collection operation conditions of deep-sea mineral particles and collecting a variety of underwater collection operation technical parameters and linkage parameters.

[0006] The deep-sea mineral particle hydraulic collection experimental platform provided by the utility model comprises a water tank, a particle platform, a hydraulic simulation component and a laser camera component; the water tank is a glass water tank, which is filled with water and is provided with a movable particle platform; the particle platform comprises a table top, a lifting mechanism, a sensor moving mechanism, a three-dimensional force sensor and mineral particles; the four corners of the table top are respectively connected with the lifting mechanism, the lifting mechanism comprises a vertically arranged lifting screw rod and a lifting motor for driving the screw rod to rotate; the sensor moving mechanism is a horizontal electric screw rod mechanism, both ends of which are fixed at the bottom end of the table top, a moving block is connected with the screw rod, and an oblong hole is opened at the position of the table top corresponding to the screw rod; the three-dimensional force sensor is fixed on the moving block; a high-rigidity and high-strength screw rod is arranged on the three-dimensional force sensor, a thin rod extends upward from the oblong hole of the table top, and mineral particles are suspended at the top end thereof; the hydraulic simulation component comprises a mineral collecting pump and a jet nozzle, the mineral collecting pump simulates the situation during underwater suction operation, and the jet nozzle simulates the underwater jet situation; the laser camera component comprises a high-speed camera.

[0007] In an embodiment of the above platform, a water tank main frame is provided on the water tank. The water tank main frame includes a slide rail bracket and a slide rail. The slide rail bracket is U-shaped, and one slide rail bracket is fixed to each of the front and rear sides of the water tank. The two slide rail brackets are connected at the bottom end of the water tank, and lifting lugs are provided on the U-shaped arms of each slide rail bracket. The slide rail is a U-shaped frame, horizontally arranged at the top ends of the two slide rail brackets and integrally formed therewith. Gear tracks are provided on the two arms of the slide rail.

[0008] In an embodiment of the above platform, a sliding mechanism is provided on the water tank main frame. The sliding mechanism includes a sliding pump frame and a sliding drive assembly. The sliding pump frame is in the shape of a Chinese character 'Mu', and its two ends extend outward and overlap on the slide rail. The sliding drive assembly includes a box body, a gear, and a motor. The box body is fixed to the extended end on one side of the sliding pump frame, and a gear driven by the motor is provided at the lower end thereof. The gear meshes with the horizontal slide rail.

[0009] In an embodiment of the above platform, the hydraulic simulation assembly includes a collecting pump, a collecting hood, and a jet nozzle. The collecting pump is fixed to the sliding pump frame through a connecting piece, and a collecting hood is provided at the inlet of the hydraulic collecting pump. The collecting hood is made of a transparent material. A plurality of jet nozzles with adjustable angles are arranged on the collecting hood.

[0010] In an embodiment of the above platform, a circulation assembly is further provided on the hydraulic simulation assembly. The circulation assembly includes a delivery hose and a conical water outlet. A flow meter is installed in the middle of the input hose. The outlet of the collecting pump is connected to the delivery hose. The delivery hose passes through the sliding pump frame and the other end thereof is connected to and passes through the right side of the water tank. The water outlet at the other end of the delivery hose is a conical water outlet.

[0011] In an embodiment of the above platform, a water separation plate and a water flow buffer honeycomb device are provided in the water tank.

[0012] The beneficial effects of the present utility model are as follows:

[0013] Based on simulating the hydraulic collection operation conditions of deep-sea mineral particles, more accurate data of underwater collection operation technical parameters and linkage parameters such as particle force, movement trajectory, and hydraulic flow field are obtained, providing theoretical parameter reference and technical support for the research and development of underwater collection technology for deep-sea minerals. The experimental platform can also simulate the suction operation of a particle group, capture the movement state of each particle through a camera, and test the time and movement of the particle group being completely collected by adjusting different system parameters, providing reference for the system parameter setting of actual engineering applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an isometric structural schematic diagram of an embodiment of the present utility model.

[0015] Figure 2 is Figure 1Schematic diagram of the main structure.

[0016] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle.

[0017] Figure 4 for Figure 1 Schematic diagram of the top view structure.

[0018] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure at BB in the middle. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the relevant technical solutions. Obviously, the described embodiments are only part of the embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1 As shown, the deep-sea mineral particle hydraulic collection experimental platform disclosed in this embodiment includes a glass water tank 1, a water tank main frame 2, a sliding mechanism 3, a hydraulic circulation component 4, a particle platform 5 and a laser camera component 6.

[0021] like Figure 2 As shown, the bottom and surrounding of the glass water tank 1 are made of tempered glass except for the alloy plate on the pipe installation side, which is convenient for observation and lighting. Legs are arranged at the four corners of the bottom of the glass water tank.

[0022] The water tank main frame 2 includes a slide rail bracket 21 and a slide rail 22 .

[0023] The slide rail bracket is U-shaped, and one slide rail bracket is fixed to each of the front and rear sides of the glass water tank 1; the two slide rail brackets are connected from the bottom end of the glass water tank, and the U-shaped arms of each slide rail bracket are provided with lifting ears.

[0024] The slide rail 22 is a U-shaped frame, which is horizontally arranged on the top of the two slide rail brackets and is integrally formed with the two slide rail arms.

[0025] The sliding mechanism 3 includes a sliding pump frame 31 and a sliding drive assembly 32 .

[0026] The sliding pump frame 31 is in the shape of a cross, and its two ends extend outwards and overlap on the slide rail 22.

[0027] The sliding drive assembly 32 comprises a box body, a gear and a motor. The box body is fixed on the extended end of one side of the sliding pump frame, and a motor-driven gear is arranged at the lower end thereof, and the gear is meshed with the horizontal slide rail.

[0028] When the motor is driven, the gear drives the sliding pump frame to slide horizontally along the slide rail.

[0029] Combination Figure 3 and Figure 4 It can be seen that the hydraulic circulation component 4 includes a hydraulic ore collecting pump 41 , an ore collecting cover 42 , a jet nozzle 43 , a conveying hose 44 , a circular cone-shaped water outlet 45 and a flow meter 46 .

[0030] The hydraulic ore collecting pump 41 is fixed to the sliding pump frame 31 through a connector, and a ore collecting cover 42 is provided at the inlet of the hydraulic ore collecting pump. The ore collecting cover is made of transparent material, and its shape can be various specifications, including cylindrical cover, conical cover, arc cover, square cover, etc., and the interfaces of various specifications are consistent, so that research on the influence of different hydraulic covers on particle collection can be carried out.

[0031] Eight jet nozzles 43 with adjustable angles are arranged on the ore collecting cover 42. By adjusting the angle of the jet nozzle and the number of injections, the influence of the working parameters of the jet nozzle on the particle collection is studied.

[0032] The outlet of the hydraulic ore collecting pump 41 is connected to a delivery hose 44, which passes through the sliding pump frame, and the other end of the delivery hose is connected to and passes through the opening on the right side of the glass water tank 1. The water outlet at the other end of the delivery hose is a circular conical water outlet 45, which can effectively and evenly return the water at the hose outlet. The delivery hose is also connected to a flow meter 46.

[0033] A water baffle 47 is welded and fixed at the outlet of the delivery hose 44 in the glass water tank 1 to prevent the pipeline backflow water from directly impacting the experimental water area. A water flow buffer honeycomb 48 is fixed on the right side of the slide rail 22 to slow down the water flow, greatly reducing the interference of the backflow water on the experimental water area while ensuring the complete circulation of the water body.

[0034] like Figure 5 As shown, the particle platform 5 includes a table 51 , a lifting mechanism 52 , a sensor moving mechanism 53 , a three-dimensional force sensor 54 and mineral particles 55 .

[0035] Four lifting mechanisms 52 are connected to the four corners of the table 51, and the lifting mechanisms include a vertically arranged lifting screw and a lifting motor for driving the screw to rotate. The table can be lifted and lowered by driving the lifting screw to rotate.

[0036] The sensor moving mechanism 53 is a horizontal electric screw mechanism, both ends of which are fixed to the bottom of the table 51 by bolts, and the moving block is connected to the screw and can move forward and backward. An oblong hole is opened at the position of the table corresponding to the screw.

[0037] The three-dimensional force sensor 54 is fixed to the moving block by bolts. The three-dimensional force sensor is provided with a high-rigidity and high-strength screw rod, which passes upward from the oblong hole of the table top, and the top of which is suspended with a mineral particle 55. The thin rod has high rigidity and can effectively transmit the three-dimensional force received by the mineral particle.

[0038] The sliding mechanism of this experimental platform can adjust the left and right positions of the hydraulic collection pump and the mineral particles, the particle platform can adjust the up and down positions of the hydraulic collection pump and the mineral particles, and the sensor moving mechanism can adjust the front and back positions of the hydraulic collection pump and the mineral particles. Through the above structure, this experimental platform can realize the automatic and accurate real-time simulation of the relative positions of the hydraulic collection pump and the mineral particles, and can also accurately imitate the working conditions of mobile hydraulic collection, which is closer to the actual working conditions.

[0039] The high-speed camera assembly 6 includes a high-speed camera 61 , a camera position adjustment bracket 62 , a laser generator 63 and a laser position adjustment bracket 64 .

[0040] The camera position adjustment bracket 62 is L-shaped, and a plurality of bolt holes are opened on the bracket at fixed intervals; the camera position adjustment bracket is fixed to the right side of the slide rail bracket 21 by bolts; the high-speed camera 61 is connected to the camera position adjustment bracket by bolts, and the up and down position of the high-speed camera can be adjusted by adjusting screws.

[0041] The laser position adjustment bracket 64 is L-shaped, and a plurality of bolt holes are opened on the bracket at fixed intervals; the laser position adjustment bracket is fixed to the front side of the slide rail bracket 21 by bolts; the laser generator 63 is connected to the laser position adjustment bracket by bolts, and the upper and lower positions of the laser generator can be adjusted by adjusting screws.

[0042] High-speed cameras and laser generators ensure that the movement trajectory of mineral particles in water can be fully captured.

[0043] The specific steps for conducting experiments using this experimental platform are as follows:

[0044] 1. Before the experiment begins, operate the hydraulic ore collecting pump to slide horizontally on the sliding moving assembly to the best experimental position, adjust the particle platform to the specified height from the ore collecting cover of the hydraulic ore collecting pump, place the test particles on the upper end of the thin rod, fill the glass water tank with clean water, and adjust the high-speed camera to the best shooting position.

[0045] 2. Select a ore collecting cover with the corresponding opening shape required for the experiment and connect it to the inlet of the hydraulic ore collecting pump.

[0046] 3. Start the hydraulic ore collecting pump. The water is sucked into the delivery hose by the pump, and the water flow rate is obtained through the flow meter. The water in the hose finally returns to the water tank through the conical outlet.

[0047] 4. Start the jet nozzle to spray water to form an upflow to blow up particles, and explore the impact of the jet on the collection efficiency.

[0048] 5. During the experiment, the particle platform is adjusted to any height within the range by operating the particle platform lifting motor. When the ore collecting pump is sucking, the three-dimensional force value exerted on the mineral particles is measured by the three-dimensional force sensor.

[0049] 6. The lateral relative position of the sensor and the ore collecting cover is adjusted through the sensor moving mechanism. As the thin rod moves, the particles move laterally. Combined with the sliding moving component to move the hydraulic ore collecting pump longitudinally, the force analysis of the particles at any horizontal position of the ore collecting cover can be simulated.

[0050] 7. When the particles are not fastened to the thin rods and are placed freely on the particle platform, start the hydraulic ore collecting pump, and the particles will be sucked into the ore collecting cover along with the water flow. The movement of the mineral particles can be photographed by the camera, and the particles can be fitted into a three-dimensional motion curve to obtain the speed of the particles at any position on the curve.

[0051] The advantages of using this experimental platform are:

[0052] 1. This experimental platform is mainly used to carry out research related to the hydraulic collection of particles. It can simulate the collection and picking operations of particles in different engineering applications, study the particle movement and force characteristics and the flow field of water flow during the operation, obtain the particle movement trajectory, speed, acceleration, various force conditions, etc., and can also obtain the flow field distribution, speed, time average and other characteristics of the water flow.

[0053] 2. The experimental platform can simulate the suction operation of particle groups, capture the movement state of each particle through the camera, and test the time and movement of the particle group after it is completely collected by adjusting different system parameters, which can provide a reference for the system parameter setting of actual engineering applications.

[0054] 3. In order to reduce the water disturbance caused by the water flow at the conical outlet to the entire water tank, a partition is used between the outlet and the water pumping point of the hydraulic ore collecting pump to isolate the water over a large area to reduce water disturbance. A honeycomb plate is installed between the two parts of the water tank to further reduce the water disturbance speed, so that the disturbed water flow at the experimental site remains basically the same, which can further ensure that the experimental simulation conditions are consistent with the actual conditions and improve the accuracy of the test data.

[0055] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although detailed descriptions are made with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A deep-sea mineral particle hydraulic collection experimental platform, characterized by: It includes a water tank, a particle platform, a hydraulic simulation component and a laser camera component; The water tank is a glass water tank filled with water, and a movable particle platform is arranged therein; The particle platform includes a tabletop, a lifting mechanism, a sensor moving mechanism, a three-dimensional force sensor and mineral particles; lifting mechanisms are respectively connected to the four corners of the tabletop. The lifting mechanism includes a vertically arranged lifting lead screw and a lifting motor for driving the lead screw to rotate; the sensor moving mechanism is a horizontal electric lead screw mechanism, the two ends of which are fixed to the bottom end of the tabletop, the moving block is connected to the lead screw, and a long circular hole is opened at the position of the tabletop corresponding to the lead screw; the three-dimensional force sensor is fixed on the moving block; a high-rigidity and high-strength lead screw is arranged on the three-dimensional force sensor, and a thin rod passes upward through the long circular hole of the tabletop, and mineral particles are suspended at its top end; The hydraulic simulation component includes a collecting pump and a jet nozzle. The collecting pump simulates the situation during underwater suction operation, and the jet nozzle simulates the jet situation underwater; The laser camera component includes a high-speed camera.

2. The deep-sea mineral particle hydraulic collection experimental platform according to claim 1, characterized in that: A water tank main frame is arranged on the water tank. The water tank main frame includes a slide rail bracket and a slide rail; The slide rail bracket is U-shaped, and one slide rail bracket is fixed to each of the front and rear sides of the water tank; the two slide rail brackets are connected at the bottom end of the water tank, and lifting lugs are arranged on the U-shaped arms of each slide rail bracket; the slide rail is a U-shaped frame, horizontally arranged at the top ends of the two slide rail brackets and integrally formed therewith; gear tracks are arranged on the two arms of the slide rail.

3. The deep-sea mineral particle hydraulic collection experimental platform as claimed in claim 2, characterized in that: A sliding mechanism is arranged on the water tank main frame. The sliding mechanism includes a sliding pump frame and a sliding drive component; The sliding pump frame is in a shape of Chinese character mu, and its two ends extend outward and overlap on the slide rail; The sliding drive component includes a box body, a gear and a motor; the box body is fixed to the extended end on one side of the sliding pump frame, and a gear driven by the motor is arranged at its lower end, and the gear meshes with the horizontal slide rail.

4. The deep-sea mineral particle hydraulic collection experimental platform as claimed in claim 3, characterized in that: The hydraulic simulation component includes a collecting pump, a collecting cover and a jet nozzle; The collecting pump is fixed to the sliding pump frame through a connecting piece, and a collecting cover is arranged at the inlet of the hydraulic collecting pump; the collecting cover is made of a transparent material; a plurality of jet nozzles with adjustable angles are arranged on the collecting cover.

5. The deep-sea mineral particle hydraulic collection experimental platform as claimed in claim 4, characterized in that: A circulation component is further arranged on the hydraulic simulation component. The circulation component includes a delivery hose and a conical water outlet; a flowmeter is installed in the middle of the input hose. The outlet of the collecting pump is connected to the delivery hose. The delivery hose passes through the sliding pump frame and the other end is connected to and passes through the right side of the water tank. The water outlet at the other end of the delivery hose is a conical water outlet.

6. The deep-sea mineral particle hydraulic collection experimental platform according to claim 1, characterized in that: A water separation plate and a water flow buffer honeycomb device are arranged in the water tank.

Images