CN211666714U - Environment-friendly semi-closed loop deep sea ore hydraulic lifting system - Google Patents
Environment-friendly semi-closed loop deep sea ore hydraulic lifting system Download PDFInfo
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- CN211666714U CN211666714U CN202020103952.7U CN202020103952U CN211666714U CN 211666714 U CN211666714 U CN 211666714U CN 202020103952 U CN202020103952 U CN 202020103952U CN 211666714 U CN211666714 U CN 211666714U
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Abstract
The utility model provides an environment-friendly semi-closed loop deep sea ore hydraulic lifting system, including water injection pump, water injection riser, the many high-pressure feed bin feeder equipment in deep sea, promotion riser, dewatering equipment and pipeline, water injection pump, dewatering equipment are fixed on the mining ship, and the water injection pump passes through the many high-pressure feed bin feeder equipment in water injection riser intercommunication deep sea, and the many high-pressure feed bin feeder equipment in deep sea passes through promotion riser intercommunication dewatering equipment, and the water injection pump passes through the pipeline intercommunication with dewatering equipment. The utility model discloses utilize the water injection pump to go into the water injection riser with the sea water pump, then utilize the many high-pressure feed bin feeder equipment in the deep sea to send into the ore high pressure hydraulic pipeline in with the sea water mixing, promote ore and sea water mixture to sea mining ship. The separated seawater is pumped into the water injection vertical pipe again by using dewatering equipment on the mining ship to form a semi-closed loop circulating system, and a very small amount of seawater is exchanged with the seabed environment, so that the lowest disturbance to the seabed ecological environment is realized. The utility model discloses moving part is few, the reliability is high, and environmental protection more, and work efficiency is higher, the good reliability.
Description
Technical Field
The utility model relates to a deep sea mining technical field especially relates to an environment-friendly semi-closed loop deep sea ore hydraulic lifting system.
Background
The ocean floor is rich in high-grade mineral resources, but is generally located in deep and ultra-deep sea areas. The ore hydraulic lifting system for deep sea mining is a core technology of deep sea mining, and generally a deep sea multi-stage ore pump is used for achieving high lift so as to meet the requirement of deep sea mining and lift ore and seawater mixed pulp onto a mining ship. The deep sea multistage ore pump and the pump control system have the disadvantages of complex design, high technical difficulty, more moving parts and low reliability of the whole system. When the ore pulp pump is used, the high-speed flowing of the ore pulp can seriously wear the ore pump, and the service life of the pump is influenced. The deep sea ore pump is generally installed on the sea bottom or hung on a vertical pipe, and is difficult to repair and replace after being abraded, and the cost is high. In addition, in the process of ore lifting, the deep-sea ore lifting pump continuously pumps seawater from the seabed, and the ecological environment of the seabed is also affected.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects, the utility model aims to provide a work process environmental protection more, the environment-friendly semi-closed loop deep sea ore hydraulic lifting system that efficiency is higher, the reliability is higher.
In order to realize the above-mentioned purpose, the utility model provides an environment-friendly semi-closed loop deep sea ore hydraulic lifting system, including water injection pump, water injection riser, the many high-pressure feed bin feeder equipment in deep sea, promotion riser, dewatering equipment and pipeline, water injection pump, dewatering equipment are fixed on the mining ship, the water injection pump passes through the many high-pressure feed bin feeder equipment in water injection riser intercommunication deep sea, the many high-pressure feed bin feeder equipment in deep sea communicates dewatering equipment through the promotion riser, the water injection pump passes through the pipeline intercommunication with dewatering equipment.
The water injection riser and the lifting riser can be hard pipes, flexible pipes or hybrid risers consisting of hard pipes and flexible pipes.
The multi-high-pressure feed bin feeding equipment for the deep sea comprises a storage bin, a high-pressure feed bin and a feeding bin which are sequentially communicated from top to bottom, the number of the high-pressure feed bins is two or more, an outlet of the feeding bin is communicated with a high-pressure pipeline, one end of the high-pressure pipeline is communicated with a water injection vertical pipe, and the other end of the high-pressure pipeline is communicated with a lifting vertical pipe.
A filling valve is arranged between the storage bin and the high-pressure bin, and a discharge valve is arranged between the high-pressure bin and the feeding bin.
The high-pressure bin is communicated with the high-pressure pipeline through a pressurization pipeline, and the pressurization pipeline is provided with a pressurization valve.
And a pressure release valve is arranged on the high-pressure storage bin.
And a feeding device is arranged between the feeding bin and the high-pressure pipeline.
The feeding equipment is a screw feeder or an impeller feeder.
The utility model has the advantages that: the method comprises the steps of pumping seawater into a water injection vertical pipe by using a water injection pump on a mining ship according to the pressure and flow required by an ore hydraulic lifting system, then sending ores into a high-pressure hydraulic pipeline by using deep-sea multi-high-pressure-bin feeding equipment to be mixed with the seawater, and then lifting the mixture of the ores and the seawater to the mining ship on the sea surface. The seawater is separated from the minerals by means of dewatering equipment on the mining vessel. The sea surface water injection pump pumps the separated seawater into the water injection vertical pipe again, so that a semi-closed loop circulation system is formed. The utility model generates a very small amount of seawater exchange with the seabed environment, and realizes the minimum disturbance to the seabed ecological environment; all high-pressure bins of the deep sea multi-high-pressure bin feeding equipment are redundant mutually, and work alternately under the coordination of a control valve, so that uninterrupted feeding is realized, and the reliability is high; the deep-sea ore-raising pump is avoided; the sea surface water injection pump has high lift, large flow, easy maintenance and repair and low cost. Make the utility model discloses a hydraulic lifting system environmental protection more, efficiency is higher, and the lift is high, and the flow is big, and the good reliability, and characteristics such as easy maintenance and maintenance.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the feeding equipment of the deep sea multiple high-pressure silos of the present invention (in the schematic diagram, the feeding equipment of the deep sea double high-pressure silos).
Wherein: 1. water injection pump, 2, water injection riser, 3, many high-pressure feed bin feeder equipment in deep sea, 4, promote the riser, 5, dewatering equipment, 6, the pipeline, 7, the mining ship, 8, the sea water entry that high-pressure pipeline and water injection riser are connected, 9, the ore pulp export that high-pressure pipeline and promotion riser are connected, 10, high-pressure pipeline, 11, the storage silo, 12, high-pressure feed bin A, 13, high-pressure feed bin B, 14, the feed bin, 15, feeder equipment, 16, the pressure boost pipeline, 17, filling valve A, 18, discharge valve A, 19, filling valve B, 20, discharge valve B, 21, relief valve A, 22, pressure boost valve A, 23, relief valve B, 24. pressure boost valve B, 25, defeated ore pulp thoughtlessly.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in figure 1, an environment-friendly semi-closed loop deep sea ore hydraulic lifting system comprises a water injection pump 1, a water injection riser 2, a plurality of deep sea high-pressure bin feeding devices 3, a lifting riser 4, a dewatering device 5 and a pipeline 6, wherein the water injection pump 1 and the dewatering device 5 are fixed on a mining ship 7, the water injection pump 1 is communicated with the plurality of deep sea high-pressure bin feeding devices 3 through the water injection riser 2, the plurality of deep sea high-pressure bin feeding devices 3 are communicated with the dewatering device 5 through the lifting riser 4, and the water injection pump 1 is communicated with the dewatering device 5 through the pipeline 6. The water injection pump 1 pumps required pressure and flow seawater for a deep sea ore hydraulic lifting system, and a semi-closed loop circulating system is established through a water injection vertical pipe 2, a deep sea multi-high-pressure storage bin feeding device 3, a lifting vertical pipe 4, a dewatering device 5 and a pipeline 6, so that the lowest disturbance to the seabed ecological environment is realized. The water injection riser 2 and the lifting riser 4 may be hard pipes, hoses or hybrid risers of hard pipes and hoses.
As shown in fig. 2, the number of the feeding devices 3 of the deep sea multi-high pressure bunker of the present invention may be two or more. The high-pressure bins are redundant, and under the condition that one high-pressure bin fails, other high-pressure bins can still continue to work, so that the reliability of the system is improved. What adopt in this embodiment is two high-pressure feed bin feeder in deep sea, specifically includes storage silo 11, two high-pressure feed bins and the feed bin 14 that communicates the setting in proper order from last to down. The double high-pressure stock bins comprise a high-pressure stock bin A12 and a high-pressure stock bin B13. The outlet of the feeding bin 14 is communicated with a high-pressure pipeline 10, one end of the high-pressure pipeline 10 is communicated with the water injection vertical pipe 2, and the other end of the high-pressure pipeline 10 is communicated with the lifting vertical pipe 4. A filling valve A17 and a filling valve B19 are respectively arranged between the storage bin 11 and the high-pressure bin A12 and between the storage bin B13 and the high-pressure bin B13 and the feeding bin 14, and a discharge valve A18 and a discharge valve B20 are respectively arranged between the storage bin A12 and the high-pressure bin B13. The high-pressure bin A12 and the high-pressure bin B13 are respectively communicated with the high-pressure pipeline 10 through a pressurization pipeline 16, and the pressurization pipeline 16 is respectively provided with a pressurization valve A22 and a pressurization valve B24. The high-pressure bin A12 and the high-pressure bin B13 are respectively provided with a pressure relief valve A21 and a pressure relief valve B23. A feed device 15 is arranged between the feed bin 14 and the high-pressure pipe 10. The feeding device 15 is a screw feeder or a vane feeder. By adjusting the feeding speed of the feeding equipment 15, the concentration of ore in the ore pulp is adjusted in real time according to the requirement, and the risk of pipeline blockage is reduced. The continuous feeding is realized by controlling various valves on the deep sea multi-high pressure bin feeding equipment 3, ores are transferred to the feeding bin 14 from the storage bin 11 through the high pressure bin A12 and the high pressure bin B13, and the feeding equipment 15 sends the ores into the high pressure pipeline 10 according to the specified amount to be mixed with seawater, so that the ores are lifted to the mining ship 7 through the lifting vertical pipe 4.
The utility model discloses a theory of operation: the water injection pump 1 on the mining ship 7 is opened, seawater is pumped into the water injection vertical pipe 2 according to the flow required by the ore hydraulic lifting system, the seawater passes through the water injection vertical pipe 2, passes through the high-pressure pipeline 10 of the deep sea multi-high-pressure-bin feeding device 3, then returns to the lifting vertical pipe 4, reaches the dewatering device 5 on the mining ship 7, and then returns to the water injection pump 1 through the pipeline 6, so that a seawater circulating system is formed.
The utility model discloses a working process:
before the start, a filling valve A17 and a discharging valve A18 of a high-pressure silo A12, a pressure release valve A21 and a pressure increase valve A22 of the deep sea multi-high-pressure silo feeding device 3, and a filling valve B19 and a discharging valve B20, a pressure release valve B23 and a pressure increase valve B24 of a high-pressure silo B13 are in a closed state. The mining vehicle then transports the ore into the storage bin 11.
The water injection pump 1 on the mining ship 7 is opened, seawater is pumped into the water injection vertical pipe 2 according to the flow required by the ore hydraulic lifting system, the seawater passes through the water injection vertical pipe 2, passes through the high-pressure pipeline 10 of the deep sea multi-high-pressure-bin feeding device 3, then returns to the lifting vertical pipe 4, reaches the dewatering device 5 on the mining ship 7, and then returns to the water injection pump 1 through the pipeline 6, so that a seawater circulating system is formed.
Then, the pressure relief valve a21 of the high-pressure storage bin a12 is opened, after the internal pressure and the external pressure of the high-pressure storage bin a12 are balanced, the filling valve a17 is opened, and the ore in the storage bin 11 falls into the high-pressure storage bin a12 under the action of gravity. And when the ore of the high-pressure storage bin A12 reaches a set position, closing the filler valve A17 and the pressure release valve A21 in sequence to finish the filling operation of the high-pressure storage bin A12.
The pressure increasing valve A22 is opened to enable the pressure of the high-pressure stock bin A12 and the high-pressure pipeline 10 to reach pressure balance. The discharge valve A18 is then opened and the ore in the high pressure silo A12 enters the feed bin 14 under the force of gravity.
The feeding device 15 feeds the ore in the feeding bin 14 into the high-pressure pipeline 10 to be mixed with the seawater according to the set feeding speed, so as to form the mixed conveying pulp 25. The commingled slurry 25 is lifted by the lifting riser 4 to the dewatering equipment 5 on the mining vessel 7 under the influence of the high pressure water flow. The seawater and ore are separated by dewatering equipment 5. The water injection pump 1 pumps the separated seawater into the water injection vertical pipe 2 again, so that a semi-closed loop circulation system is formed, and the seawater is recycled.
After all the ores in the high-pressure silo A12 fall into the feeding silo 14, the discharging valve A21 and the pressurizing valve A22 are closed in sequence, and the discharging operation of the high-pressure silo A12 is completed.
The high-pressure silo a12 is unloaded and simultaneously the high-pressure silo B13 is filled. And opening a pressure relief valve B23 of the high-pressure bin B13, opening a filling valve B19 after the internal and external pressures of the high-pressure bin B13 are balanced, and allowing the ore in the storage bin 11 to fall into a high-pressure bin B12 under the action of gravity. And when the height of the ore pile in the high-pressure bin B13 reaches a set position, closing the filling valve B19 and the pressure release valve B23 in sequence to finish the filling operation of the high-pressure bin B13.
And after the high-pressure bin A12 finishes the unloading operation, the unloading operation of the high-pressure bin B13 is carried out. The pressure increasing valve B24 is opened to make the pressure of the high-pressure stock bin B13 and the high-pressure pipeline 10 reach pressure balance. The discharge valve B20 is then opened and the ore in the high pressure silo B13 enters the feed silo 14 under the influence of gravity. After all the ores in the high-pressure bin B13 fall into the feeding bin 14, the discharge valve B20 and the pressurization valve B24 are closed in sequence, and the discharge operation of the high-pressure bin B13 is completed.
By such circulation, the high-pressure stock bin A12 and the high-pressure stock bin B13 work alternately under the cooperation of the valves to realize uninterrupted filling operation and discharging operation, realize uninterrupted feeding through the feeding equipment 15, and lift the ores onto a mining ship. And, high-pressure feed bin A and high-pressure feed bin B are redundant each other, and under the condition that a high-pressure feed bin is out of order, another high-pressure feed bin still can continue to work to the reliability of system has been improved.
In the same principle, for a system containing more than two high-pressure bins, the high-pressure bins can work alternately under the coordination of valves to realize uninterrupted filling and discharging. The multiple high pressure silos provide greater redundancy to the system.
In the whole process, only in the process of pressure relief and filling, a very small amount of seawater exchange can be generated with the surrounding environment, and the lowest disturbance to the seabed ecological environment is realized.
The utility model discloses utilize the water injection pump on the mining ship, according to the pressure and the flow that ore hydraulic lifting system needs, go into the water injection riser with the sea water pump, then utilize the many high-pressure feed bin feeder equipment in the deep sea, send into the ore and mix with the sea water in the high-pressure hydraulic pipeline, then promote ore and sea water mixture to sea mining ship. The seawater is separated from the minerals by means of dewatering equipment on the mining vessel. The sea surface water injection pump pumps the separated seawater into the water injection vertical pipe again, so that a semi-closed loop circulation system is formed. The utility model generates a very small amount of seawater exchange with the seabed environment, and realizes the minimum disturbance to the seabed ecological environment; all high-pressure bins of the deep sea multi-high-pressure bin feeding equipment are redundant mutually, and work alternately under the coordination of a control valve, so that uninterrupted feeding is realized, and the reliability is high; the deep-sea ore-raising pump is avoided; the sea surface water injection pump has high lift, large flow, easy maintenance and repair and low cost. Make the utility model discloses a hydraulic lifting system environmental protection more, efficiency is higher, and the lift is high, and the flow is big, and the good reliability, and characteristics such as easy maintenance and maintenance.
Claims (8)
1. The utility model provides an environment-friendly semi-closed loop deep sea ore hydraulic lifting system, includes water injection pump, water injection riser, many high-pressure feed bin feeder equipment in deep sea, promotion riser, dewatering equipment and pipeline, its characterized in that: the water injection pump and the dehydration equipment are fixed on a mining ship, the water injection pump is communicated with the deep sea multi-high-pressure bin feeding equipment through a water injection vertical pipe, the deep sea multi-high-pressure bin feeding equipment is communicated with the dehydration equipment through a lifting vertical pipe, and the water injection pump is communicated with the dehydration equipment through a pipeline.
2. The environment-friendly semi-closed loop deep sea ore hydraulic lifting system of claim 1, wherein: the water injection riser and the lifting riser can be hard pipes, flexible pipes or hybrid risers consisting of hard pipes and flexible pipes.
3. The environment-friendly semi-closed loop deep sea ore hydraulic lifting system of claim 1, wherein: the multi-high-pressure feed bin feeding equipment for the deep sea comprises a storage bin, a high-pressure feed bin and a feeding bin which are sequentially communicated from top to bottom, the number of the high-pressure feed bins is two or more, an outlet of the feeding bin is communicated with a high-pressure pipeline, one end of the high-pressure pipeline is communicated with a water injection vertical pipe, and the other end of the high-pressure pipeline is communicated with a lifting vertical pipe.
4. The environment-friendly semi-closed loop deep sea ore hydraulic lifting system of claim 3, wherein: a filling valve is arranged between the storage bin and the high-pressure bin, and a discharge valve is arranged between the high-pressure bin and the feeding bin.
5. The environment-friendly semi-closed loop deep sea ore hydraulic lifting system of claim 3, wherein: the high-pressure bin is communicated with the high-pressure pipeline through a pressurization pipeline, and the pressurization pipeline is provided with a pressurization valve.
6. The environment-friendly semi-closed loop deep sea ore hydraulic lifting system of claim 3, wherein: and a pressure release valve is arranged on the high-pressure storage bin.
7. The environment-friendly semi-closed loop deep sea ore hydraulic lifting system of claim 3, wherein: and a feeding device is arranged between the feeding bin and the high-pressure pipeline.
8. The environment-friendly semi-closed loop deep sea ore hydraulic lifting system of claim 7, wherein: the feeding equipment is a screw feeder or an impeller feeder.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021143491A1 (en) * | 2020-01-17 | 2021-07-22 | 招商局深海装备研究院(三亚)有限公司 | Environmentally-friendly semi-closed-loop deep sea ore hydraulic lifting system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021143491A1 (en) * | 2020-01-17 | 2021-07-22 | 招商局深海装备研究院(三亚)有限公司 | Environmentally-friendly semi-closed-loop deep sea ore hydraulic lifting system |
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