A deep-sea mining mixed transportation and lifting test system simulating deep-sea environment

Abstract

The present invention discloses a deep-sea mining mixed transportation and lifting test system simulating a deep-sea environment, comprising a control console, a water mixing system, a water pumping system, a mine-water separation system, a material return system, a lifting system, and a water replenishment system, wherein the water mixing system is connected to a bottom bin, a water pumping system, and a water replenishment system, and the other ends of the water pumping system and the water replenishment system are both connected to the mine-water separation system, and the mine-water separation system forms a circulation loop with the bottom bin through the material return system and the lifting system. The present invention can return the mine-water mixture and the test water lifted by the lifting pump to the bottom bin and the water bin respectively, ensuring the water circulation and ore circulation of the test, making the test more efficient and environmentally friendly; the rotation speed of the water mixing motor and the water pumping motor is changed by the control console, so as to achieve the purpose of changing the concentration and flow rate of the mine-water mixture during the test, so that the test can more conveniently and quickly reflect the influence of the concentration and flow rate of the mine-water mixture on the lifting pump.

Description

Technical Field

[0001] The invention relates to a deep-sea mining mixed transportation and lifting test system, in particular to a deep-sea mining mixed transportation and lifting test system simulating a deep-sea environment. Background Art

[0002] The lifting pump is an important component of the deep-sea mining lifting system. In order to better understand the performance parameters of the lifting pump, tests must be conducted to verify it. Since direct deep-sea tests are very risky and costly in terms of money and time, conducting onshore tests can reduce risks and losses. At present, there are three problems with the onshore test platforms that can be used for deep-sea mining lifting pumps. First, the functional structure of the existing test platforms is imperfect and cannot simulate the deep-water pressure environment of deep-sea mining. Second, it is impossible to verify the impact of different concentrations of mineral-water mixtures on the performance parameters of the lifting pump. Third, it is impossible to verify the impact of different flow rates on the performance parameters of the lifting pump. Therefore, designing an onshore test bench that can simulate deep-water pressure and change the concentration and flow rate of mineral-water mixtures is an important issue currently facing the research on deep-sea mining lifting pumps. Summary of the invention

[0003] Purpose of the invention: The purpose of the invention is to provide a deep-sea mining mixed transportation and lifting test system that simulates the deep-sea environment, which can simulate deep-water pressure and change the concentration and flow rate of the mineral-water mixture.

[0004] Technical solution: The present invention includes a control console, a water mixing system, a water pumping system, a mine water separation system, a material return system, a lifting system, and a water replenishing system, wherein the water mixing system is connected to the bottom bin, the water pumping system and the water replenishing system, the other ends of the water pumping system and the water replenishing system are both connected to the mine water separation system, and the mine water separation system forms a circulation loop with the bottom bin through the material return system and the lifting system.

[0005] The water mixing system includes a water tank, which is connected to the bottom tank. A water mixing port, a water pumping inlet and a water replenishing outlet are provided on the side of the water tank. A water mixing pump and a water mixing motor are connected to the water mixing port, the water pumping inlet is connected to the water pumping system, and the water replenishing outlet is connected to the water replenishing system.

[0006] One end of the water pumping system is connected to the water pumping inlet of the water mixing system, and the other end is connected to the water pumping port of the mine water separation box. A water pumping pump and a water pumping motor are connected to the pipeline of the water pumping system close to the mine water separation box. The water pumping pump is connected to the lifting pump. A water pumping system flow meter and a water pumping system pressure gauge are provided on the connecting pipeline. The other end of the lifting pump is connected to the water pumping inlet of the water tank.

[0007] The mine water separation system comprises a mine water separation box, a filter screen is arranged inside the mine water separation box, a water replenishment port connected to the water replenishment system and a water pumping port connected to the water pumping system are arranged on the side of the mine water separation box, and a return port connected to the return system is arranged at the bottom.

[0008] The material return system comprises a material return pipeline, a material feed port of the material return pipeline is communicated with a material return port on a mineral water separation box, and a material discharge port is arranged in a bottom bin.

[0009] The lifting system comprises a stirrer, which is located in the bottom bin. The other end of the stirrer is connected to a lifting pump. A booster is arranged on the pipeline from the lifting pump to the mineral water separation box.

[0010] A lifting system flow meter is arranged on the connecting pipeline between the lifting pump and the mine water separation box.

[0011] The water replenishment system includes a water replenishment motor, a water replenishment pump and a water replenishment pipeline. The inlet of the water replenishment pipeline is connected to the water replenishment pump, and its outlet is connected to the water replenishment port of the mineral water separation box. The water replenishment pump is connected to the water replenishment inlet of the water tank.

[0012] The control console is connected to the lifting pump and the motor to collect flow, pressure and water level information, and the collected data is displayed for reference by on-site staff. Beneficial Effects

[0013] (1) The present invention can return the ore-water mixture and the test water lifted by the lifting pump to the bottom bin and the water bin respectively, ensuring the water circulation and ore circulation of the test, making the test more efficient and environmentally friendly;

[0014] (2) The present invention changes the rotation speed of the water mixing motor and the water pumping motor through the control console, thereby achieving the purpose of changing the concentration and flow rate of the mineral water mixture during the test, making the test more convenient and quick to reflect the influence of the concentration and flow rate of the mineral water mixture on the lifting pump;

[0015] (3) The present invention changes the lifting pressure of the lifting pump by controlling the booster, thereby simulating the pressure at different depths in the deep sea environment, which is suitable for a variety of test environments;

[0016] (4) The ore particles placed in the bottom bin of the present invention may have ore particles of different diameters according to specific test requirements, and are suitable for a variety of test environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the water mixing system of the present invention;

[0019] Figure 3 It is a schematic diagram of the water pumping system of the present invention;

[0020] Figure 4 A schematic diagram of a mineral water separation box of a mineral water separation system of the present invention;

[0021] Figure 5 It is a schematic diagram of the material return system of the present invention;

[0022] Figure 6 It is a schematic diagram of the lifting system of the present invention;

[0023] Figure 7 It is a schematic diagram of the water replenishment system of the present invention. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] like Figure 1 As shown, the present invention includes a control console 1, a water mixing system 2, a water pumping system 3, a mineral water separation system 4, a return system 5, a lifting system 6, and a water replenishment system 7, wherein the water mixing system 2 is connected to the bottom bin 12, the water pumping system 3 and the water replenishment system 7, and the other ends of the water pumping system 3 and the water replenishment system 7 are both connected to the mineral water separation system 4, and the mineral water separation system 4 forms a circulation loop with the bottom bin 12 through the return system 5 and the lifting system 6. The main function of the control console 1 is to control various motors and valves 9, and control the operation of the lifting pump 18. Collect flow, pressure and water level information, and display the collected data for reference by on-site staff.

[0026] like Figure 2 As shown, the water mixing system 2 includes a water tank 8, which is placed on the ground to store water. A water mixing port and a water pumping inlet are provided on one side of the water tank 8, and a water replenishment outlet is provided on the other side. A water mixing pump 10 and a water mixing motor 11 are connected to the water mixing port. The flow rate of the water mixing pump 10 is controlled by controlling the rotation speed of the water mixing motor 11. A valve 9 is provided on the connecting pipeline between the water mixing pump 10 and the water tank 8, and the opening and closing of the water mixing system 2 is controlled by the valve 9. The water pumping inlet is connected to the water pumping system 3, and the water replenishment outlet is connected to the water replenishment system 7. The main function of the water mixing system 2 is to change the concentration of mineral water in the lifting system 6. During the test, the flow rate of the water mixing pump 10 can be adjusted by controlling the rotation speed of the water mixing motor 11, thereby controlling the water mixing ratio, thereby changing the mineral water mixing concentration.

[0027] The water tank 8 is connected to the bottom tank 12, and a valve 9 is provided on the connecting pipeline, through which the discharge of ore particles is controlled. The bottom tank 12 has no cover on the top and an outlet is provided at the bottom for connecting with the water tank 8. The bottom tank 12 is used to store ore particles, thereby simulating the intermediate tank of the deep-sea mining lifting system.

[0028] like Figure 3As shown, the main function of the water pumping system 3 is to pump the wastewater separated from the mine water back to the water tank 8, and drive the lifting pump 18 to provide power for the lifting pump 18. One end of the water pumping system 3 is connected to the water pumping inlet of the water mixing system 2, and the other end is connected to the water pumping port 21 of the mine water separation box 13. The water pumping pump 14 and the water pumping motor 15 are connected to the pipeline of the water pumping system 3 near the mine water separation box 13. The flow of the water pumping pump 14 is controlled by controlling the speed of the water pumping motor 15, thereby controlling the lifting speed of the lifting pump 18. The water pumping pump 14 is connected to the lifting pump 18 through a pipeline, and the lifting pump 18 is driven by hydraulic pressure while discharging wastewater. The connecting pipeline is provided with a water pumping system flow meter 16 and a water pumping system pressure gauge 17, and the flow meter and pressure gauge are used to display the flow and pressure during the operation of the water pumping system. The lifting pump 18 is connected to the water pumping inlet of the water tank 8 through a pipeline, so that the wastewater discharged by the water pumping system 3 returns to the water tank 8 to ensure the circulation of the test water.

[0029] like Figure 4 As shown, the main function of the mine-water separation system 4 is to separate ore from water. By controlling the inclination of the filter screen 19, the mixed concentration of the return material can be adjusted. The mine-water separation system 4 includes a mine-water separation box 13, and a filter screen 19 is arranged inside the mine-water separation box 13. The filter screen 19 is placed in the mine-water separation box 13 at a certain angle. The mixed concentration of the return material can be adjusted by controlling the inclination of the filter screen 19. A water replenishment port 23 is arranged on one side of the mine-water separation box 13, which is connected to the water replenishment system 7, and a water inlet 21 and a water level meter 20 are arranged on the other side. The water inlet 21 is connected to the water inlet system 3, and the water level meter 20 is used to monitor the water level in the mine-water separation box 13. A return material port 22 is arranged at the bottom, which is connected to the return material system 5.

[0030] like Figure 5 As shown, the main function of the return system 5 is to simulate the process of mining and transporting from the mine car to the intermediate bin. It can realize the mineral circulation and lifting, and ensure the test ore circulation, including the return pipe 24, the feed port of the return pipe 24 is connected with the return port 22 on the ore water separation box 13, and the discharge port is directly placed in the bottom bin 12. The ore water particles separated by the ore water separation box 13 are directly returned to the bottom bin 12 through the return pipe 24 to ensure the test ore circulation. The return pipe 24 is provided with a return system flow meter 25 to monitor the flow in the return pipe 24.

[0031] like Figure 6As shown, the main function of the lifting system 6 is to transport the mixed mineral water mixture to the mineral water separation system 4 to achieve the lifting function, including the lifting system flow meter 26, the booster 27 and the agitator 28. The agitator 28 is located in the bottom bin 12 and is used to stir the mineral water mixture in the bottom bin 12 to make the concentration of the mineral water mixture in the bottom bin 12 uniform. The agitator 28 is connected to the lifting pump 18 through a pipeline, and the lifting pump 18 lifts the mineral water mixture in the bottom bin 12 to the mineral water separation box 13 at a high place through the pipeline. The lifting system flow meter 26 and the booster 27 are arranged in the pipeline from the lifting pump 18 to the mineral water separation box 13. The lifting system flow meter 26 is used to monitor the flow in the pipeline, and the booster 27 is used to increase the pressure in the pipeline, the purpose of which is to simulate the high pressure environment of the deep-sea mining lifting system.

[0032] like Figure 7 As shown, the main function of the water replenishment system 7 is to replenish the water level of the mineral water separation system 4, ensure that the water volume of the water pumping system 3 is sufficient during the test process, and ensure the test water circulation, including a water replenishment motor 29, a water replenishment pump 30 and a water replenishment pipeline 31. The inlet of the water replenishment pipeline 31 is connected to the water replenishment pump 30, and its outlet is connected to the water replenishment port 23 of the mineral water separation box 13. The water replenishment pump 30 is connected to the water replenishment inlet of the water tank 8 through a pipeline, and the water replenishment motor 29 is connected to the water replenishment pump 30. The flow rate of the water replenishment pump 30 is controlled by controlling the rotation speed of the water replenishment motor 29.

[0033] Working principle of the present invention:

[0034] When the onshore test bench starts working, the water tank is filled with an appropriate amount of water, and the bottom tank is also filled with an appropriate amount of mineral water mixture. The control console controls the operation of the water mixing motor and the water replenishment motor, thereby driving the operation of the water mixing system and the water replenishment system. The water mixing system transports the water in the water tank to the bottom tank, so that the bottom tank forms a mineral water mixture with a suitable concentration. At the same time, the water replenishment system transports the water in the water tank to the mineral water separation system. When the water level in the mineral water separation system reaches a certain height, the control console controls the water pumping motor to operate, and the water pumping system starts working. The water pumping system discharges the water in the mineral water separation system and returns it to the water tank, thereby realizing the test water circulation.

[0035] The pumping system will drive the lifting pump to work while draining water, driving the lifting system to operate. The agitator in the lifting system is constantly running to make the concentration of the ore-water mixture in the bottom bin uniform. The lifting system lifts the ore-water mixture in the bottom bin to the ore-water separation system through the lifting pump, and the booster in the lifting system will also work to increase the pressure in the lifting system. After the lifting system transports the ore-water mixture in the bottom bin to the ore-water separation system, the ore-water separation system adjusts the concentration of the ore-water mixture through the filter screen, and discharges the ore-water mixture into the bottom bin through the return system, thereby realizing the test ore circulation. At this time, the onshore test bench starts to work in a cycle, and the water mixing system, water replenishment system, pumping system, lifting system, ore-water separation system and return system are all in operation, realizing the onshore test of the deep-sea mining lifting pump.

[0036] During the operation of the onshore test platform, the concentration of the mineral water mixture can be changed by adjusting the speed of the water mixing motor through the control console, and the working efficiency of the lifting pump can be changed by adjusting the speed of the water pumping motor through the control console, thereby changing the flow rate of the mineral water mixture. This verifies the influence of different mineral water mixture concentrations and flow rates on the performance parameters of the lifting pump.

Claims

1. A deep-sea mining mixed transportation and lifting test system simulating a deep-sea environment, characterized in that: The system comprises a control console (1), a water mixing system (2), a water pumping system (3), a mineral water separation system (4), a material return system (5), a lifting system (6), and a water replenishment system (7), wherein the water mixing system (2) is connected to a bottom bin (12), the water pumping system (3), and the water replenishment system (7), the other ends of the water pumping system (3) and the water replenishment system (7) are connected to the mineral water separation system (4), and the mineral water separation system (4) forms a circulation loop with the bottom bin (12) through the material return system (5) and the lifting system (6); The water mixing system (2) comprises a water tank (8), the water tank (8) being connected to the bottom tank (12), and a water mixing port, a water pumping inlet and a water replenishing outlet being provided on the side of the water tank (8), wherein the water mixing port is connected to a water mixing pump and a water mixing motor, the water pumping inlet is connected to the water pumping system (3), and the water replenishing outlet is connected to the water replenishing system (7); One end of the water pumping system (3) is connected to the water pumping inlet of the water mixing system (2), and the other end is connected to the water pumping port (21) of the mineral water separation box (13). A water pumping pump and a water pumping motor are connected to the pipeline of the water pumping system (3) close to the mineral water separation box (13). The water pumping pump is connected to the lifting pump (18). A water pumping system flow meter and a water pumping system pressure gauge are provided on the connecting pipeline between the water pump and the lifting pump (18). The other end of the lifting pump (18) is connected to the water pumping inlet of the water tank (8); The mineral water separation system (4) comprises a mineral water separation box (13), a filter screen (19) is provided inside the mineral water separation box (13), a water supply port connected to the water supply system (7) and a water supply port connected to the water supply system (3) are provided on the side of the mineral water separation box (13), and a return port (22) connected to the return system is provided at the bottom; The feed return system (5) comprises a feed return pipe (24), the feed inlet of the feed return pipe (24) is connected to the feed return port on the mineral water separation box (13), and the discharge port is placed in the bottom bin (12); The lifting system (6) comprises an agitator (28), the agitator (28) being located in the bottom bin (12), the other end of the agitator being connected to a lifting pump (18), the lifting pump being connected to a mine-water separation tank (13), a booster (27) being arranged on a pipeline connecting the lifting pump and the mine-water separation tank (13), the booster being used to increase the pressure in the pipeline, and its purpose is to simulate the high-pressure environment of a deep-sea mining lifting system; The water replenishment system (7) comprises a water replenishment motor, a water replenishment pump and a water replenishment pipeline (31); the inlet of the water replenishment pipeline (31) is connected to the water replenishment pump, the outlet of the water replenishment pipeline (31) is connected to the water replenishment port (23) of the mineral water separation box (13), and the water replenishment pump is connected to the water replenishment inlet of the water tank (8).

2. A deep-sea mining mixed transportation and lifting test system simulating a deep-sea environment according to claim 1, characterized in that: A lifting system flow meter (26) is provided on the connecting pipeline between the lifting pump and the mineral water separation box.

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