CN113958488A - Deep sea mining lift pump for coarse particles - Google Patents
Deep sea mining lift pump for coarse particles Download PDFInfo
- Publication number
- CN113958488A CN113958488A CN202111184764.7A CN202111184764A CN113958488A CN 113958488 A CN113958488 A CN 113958488A CN 202111184764 A CN202111184764 A CN 202111184764A CN 113958488 A CN113958488 A CN 113958488A
- Authority
- CN
- China
- Prior art keywords
- pump
- pipeline
- pump body
- seawater
- ore pulp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000011362 coarse particle Substances 0.000 title claims abstract description 21
- 238000005065 mining Methods 0.000 title claims abstract description 21
- 239000013535 sea water Substances 0.000 claims abstract description 61
- 239000012528 membrane Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000006837 decompression Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 6
- 239000011707 mineral Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/06—Pumps having fluid drive
- F04B43/073—Pumps having fluid drive the actuating fluid being controlled by at least one valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B23/00—Pumping installations or systems
- F04B23/04—Combinations of two or more pumps
- F04B23/06—Combinations of two or more pumps the pumps being all of reciprocating positive-displacement type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/0009—Special features
- F04B43/0081—Special features systems, control, safety measures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/06—Pumps having fluid drive
- F04B43/073—Pumps having fluid drive the actuating fluid being controlled by at least one valve
- F04B43/0736—Pumps having fluid drive the actuating fluid being controlled by at least one valve with two or more pumping chambers in parallel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/20—Filtering
Abstract
The invention discloses a deep sea mining lift pump for coarse particles, which comprises a pump body part and a pipeline, wherein the pump body part comprises a plurality of pump bodies which are arranged in parallel, the bottoms of the pump bodies are connected with the pipeline together, one side of each pump body is connected with an ore pulp pipeline through an ore pulp inlet and outlet, a filter screen is arranged on a connecting pipeline of the pump body, and the other side of each pump body is connected with a seawater pipeline. The invention adopts the seawater reinjection to drive the lift pump and the power system to be arranged on the offshore mining platform, thereby avoiding the technical defects of a deepwater motor; the filter screen is arranged in the pipeline connecting the ore pulp pump chamber and the ore pulp pipeline, so that the coarse particle ore pulp can be prevented from entering the ore pulp pump chamber and colliding and rubbing with the diaphragm, and the service life of the diaphragm is prolonged; the seawater pump chamber pressurization inlet valve and the seawater pump chamber decompression outlet valve are arranged, so that the impact of sudden pressurization and pressure relief on the diaphragm can be avoided in the working process, the pressure fluctuation in a pipeline can be reduced, the pressure fluctuation can be minimized, and the continuous flowing of ore pulp can be ensured.
Description
Technical Field
The invention relates to a lift pump, in particular to a deep sea mining lift pump for coarse particles.
Background
As the demand of the industrial society for various mineral resources is continuously increased, the mineral resources on land have been gradually exhausted in the exploitation for many years, and thus various mineral resources in the sea are more and more emphasized. In order to relieve the urgent need of the industrial society for various mineral resources and the gradual exhaustion of the mineral resources on land, the mining technology level of the mineral resources in deep sea is particularly needed to be improved, and the ore mixed transportation and promotion technology is the key of the deep sea mining technology.
At present, centrifugal vane pumps are mostly adopted for ore mixed transportation and lifting at home and abroad, and the centrifugal lifting pumps have the following two problems that firstly, the vanes of the centrifugal pumps are easy to wear, and because ore pulp contains a large number of coarse particles with irregular shapes, the coarse particles can cause serious damage to the vanes in the operation process of the pumps; and secondly, a motor with larger power is needed for the operation of the centrifugal pump. As can be seen from the existing lift pump, the problems of abrasion, blockage and the like are the difficult problems faced by the optimization development of the current lift pump. Therefore, designing a deep-sea mining lift pump which is not easy to wear and block and is convenient to replace and maintain is a main problem facing the current improvement of deep-sea mining technology.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a deep sea mining lift pump for coarse particles, which is not easy to wear and block and is convenient to replace and maintain.
The technical scheme is as follows: the invention comprises a pump body part and a pipeline, wherein the pump body part comprises a plurality of pump bodies which are arranged in parallel, the bottoms of the pump bodies are connected with the pipeline together, one side of each pump body is connected with an ore pulp pipeline through an ore pulp inlet and an ore pulp outlet, a filter screen is arranged on a connecting pipeline of the pump body, and the other side of each pump body is connected with a seawater pipeline.
The pipeline be U type pipeline, the both ends of U type pipeline are connected with the pump body through middle lid respectively, utilize the pressure differential of U type pipeline to make the push rod of left pump body and right pump body can the cycle work.
The pump body in be equipped with the diaphragm, in the diaphragm edge embedding pump body, the diaphragm divides the pump chamber into ore pulp pump chamber and seawater pump chamber.
The diaphragm divides the pump chamber into a pulp pump chamber and a seawater pump chamber.
The diaphragm center be connected with the push rod, the bottom of push rod passes pump body and middle lid in proper order, stretches into in the U type pipeline.
And the tail end of the push rod extending into the U-shaped pipeline is provided with a piston, and the push rod and the piston of the left pump body and the right pump body can work circularly by utilizing the pressure difference of the U-shaped pipeline.
The pump body is provided with a seawater inlet and a seawater outlet, and the seawater inlet and the seawater outlet are connected with a seawater pipeline.
The middle cover body is provided with a guide sleeve at one end close to the pump body, and the guide sleeve is sleeved outside the push rod and used for guiding, supporting and dynamic sealing of the push rod.
And an inlet valve and an outlet valve are arranged on the ore pulp pipeline.
The seawater pipeline is provided with an inlet valve, a pressurizing inlet valve, a pressure reducing valve and a pressure reducing outlet valve, so that sudden pressurization and pressure relief can be avoided in the working process, impact on a diaphragm is avoided, pressure fluctuation in the pipeline is reduced, the pressure fluctuation is minimized, and the ore pulp is ensured to continuously flow.
Has the advantages that:
(1) the invention adopts the seawater reinjection to drive the lift pump and the power system to be arranged on the offshore mining platform, thereby avoiding the technical defects of a deepwater motor;
(2) the double-row suction driving mode and the pump set working mode are adopted, the redundancy capability is strong, and the normal work of the system is not influenced when the failure of a single pump occurs in the pump set;
(3) can be used for lifting coarse particle ore pulp in the range of 20mm-50 mm;
(4) the filter screen is arranged in the pipeline connecting the ore pulp pump chamber and the ore pulp pipeline, so that the coarse particle ore pulp can be prevented from entering the ore pulp pump chamber and colliding and rubbing with the diaphragm, the service life of the diaphragm is prolonged, and compared with a centrifugal lifting pump, the centrifugal lifting pump is high in conveying pressure, high in efficiency, firm, durable and not easy to wear;
(5) the seawater pump chamber pressurization inlet valve and the seawater pump chamber decompression outlet valve are arranged, so that the impact of sudden pressurization and pressure relief on the diaphragm can be avoided in the working process, the pressure fluctuation in a pipeline can be reduced, the pressure fluctuation can be minimized, and the continuous flowing of ore pulp can be ensured.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a pump body portion according to the present invention;
FIG. 3 is a schematic structural view of the intermediate cover according to the present invention;
FIG. 4 is a schematic view of a U-shaped pipe of the present invention;
fig. 5 is a transport pipe distribution diagram of the present invention.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1 to 5, the invention comprises a pump body part 2, a middle cover body 3 and a U-shaped pipeline 4, wherein the pump body part 2 comprises a left pump body and a right pump body, the lifting of ore pulp is realized through the suction and discharge of seawater, the pump bodies at two sides are symmetrically distributed, the bottoms of the pump bodies at two sides are respectively connected with the U-shaped pipeline 4 through the middle cover body 3, the top of the pump body part 2 is connected with the ore pulp pipeline 1, and the middle part is connected with the seawater pipeline 5.
As shown in figure 2, a single pump body comprises a pump body 13, an ore pulp inlet and outlet 7 is formed in the top of the pump body 13, a seawater inlet and outlet 11 is formed in the middle of the pump body, the ore pulp inlet and outlet 7 is connected with an ore pulp pipeline 1, and a filter screen 6 is arranged on a connecting pipeline, so that collision and friction between coarse particle ore pulp entering an ore pulp pump chamber 8 and a diaphragm 9 are avoided, and the service life of the diaphragm 9 is greatly prolonged. The seawater inlet and outlet 11 is communicated with a seawater pipeline 5. The ore pulp inlet and outlet 7 and the water inlet and outlet 11 of the left pump body and the right pump body are arranged on the same side. The pump body 13 is internally provided with a diaphragm 9, the edge of the diaphragm 9 is embedded into the pump body 13, the diaphragm 9 divides the pump chamber into a pulp pump chamber 8 and a seawater pump chamber 12, the center of the diaphragm 9 is connected with a push rod 10, the bottom of the push rod 10 sequentially penetrates through the pump body 13 and the middle cover body 3 and extends into the U-shaped pipeline 4, and the tail end of the push rod 10 extending into the U-shaped pipeline 4 is provided with a piston 16, as shown in fig. 4.
The U-shaped pipeline 4 comprises a U-shaped pipe 17, push rods 10 extend into the left side and the right side of the U-shaped pipe 17, a piston 16 is installed at the bottom of each push rod 10, and the push rods 10 of the left pump body and the right pump body can work circularly by utilizing the pressure difference of the U-shaped pipeline 4.
As shown in fig. 3, the intermediate cover 3 includes a cover 14 and a guide sleeve 15 for connecting the pump body 13 and the U-shaped pipe 4, and fixing the U-shaped pipe 4 to two pump bodies 13 connected in parallel. A guide sleeve 15 is further installed at one end of the middle cover body 3 close to the pump body 13, the guide sleeve 15 is sleeved outside the push rod 10, and the guide sleeve 15 mainly has the functions of guiding, supporting and dynamic sealing of the push rod 10.
The working principle of the invention is as follows:
when the lift pump starts to work, the pump is filled with ore pulp, coarse particles in the ore pulp are intercepted by the filter screen 6 and do not enter the pump body 13, the left seawater inlet valve 38, the right seawater outlet valve 32, the left ore pulp outlet valve 21 and the right ore pulp inlet valve 25 are opened, all other valves are closed, high-pressure seawater in the seawater pipeline 5 enters the seawater pump chamber 12 of the left pump body to push the diaphragm 9 in the left pump body to rise so as to drive the push rod 10 in the left pump body to rise, the push rod 10 in the left pump body drives the push rod 10 in the right pump body to fall by utilizing the pressure difference of the U-shaped pipeline 4 so as to drive the diaphragm 9 in the right pump body to fall, the ore pulp pump chamber 8 of the left pump body and the seawater pump chamber 12 of the right pump body are reduced in volume so as to press the ore pulp pump chamber 8 of the left pump body out, the ore pulp in the left pump body can be discharged through the ore pulp outlet pipeline 22 together with the coarse particles intercepted by the filter screen 6 when being discharged, the seawater in the seawater pump chamber 12 of the right pump body is discharged out of the pump chamber and then discharged through the seawater outlet pipeline 33, meanwhile, the size of the pulp pump chamber 8 of the right pump body is increased, the pulp pump chamber 8 of the right pump body sucks the pulp into the pulp pump chamber 8 of the right pump body through the right pulp inlet pipeline 26, and coarse particles in the pulp are intercepted by the filter screen 6 and do not enter the pump body.
When the operation of the sea water pump chamber 12 of the left pump body is finished, the left sea water inlet valve 38, the right sea water outlet valve 32, the left pulp outlet valve 21 and the right pulp inlet valve 25 are closed, the left sea water outlet valve 34, the right sea water inlet valve 28, the left pulp inlet valve 19 and the right pulp outlet valve 23 are opened, the volumes of the sea water pump chamber 12 of the left pump body and the pulp pump chamber 8 of the right pump body are reduced, the pulp pump chamber 8 of the right pump body presses the pulp into the pulp pipeline 1, the pulp in the right pump body is discharged together with coarse particles intercepted by the filter screen 6 through the pulp outlet pipeline 22, the sea water pump chamber 12 of the left pump body presses the sea water into the sea water pipeline 5 and is discharged through the sea water outlet pipeline 33, the volume of the pulp pump chamber 8 of the left pump body is increased, the pulp pump chamber in the pulp inlet pipeline 18 is sucked, and the coarse particles in the pulp are intercepted by the filter screen 6 and do not enter the pump body, thus, one cycle of the pump body work is realized.
Before the left seawater inlet valve 38 of the left pump body is opened, the left seawater pump chamber pressurizing inlet valve 37 is opened, pressure is added to the pump chamber, the left seawater inlet valve 38 is opened after pressurization to a certain degree, the diaphragm 9 is driven to move, impact of pressure change on the diaphragm 9 is reduced, similarly, before the right seawater inlet valve 28 of the right pump body is opened, the right seawater pump chamber pressurizing inlet valve 29 is opened, pressure is slowly increased into the pump, and then the right seawater inlet valve 28 is opened.
Before the left seawater outlet valve 34 of the left pump body is opened, the left seawater pump chamber reduced-pressure outlet valve 35 is opened to reduce the pressure in the pump chamber, and then the left seawater outlet valve 34 is opened to discharge the seawater in the pump, and similarly, before the right seawater outlet valve 32 of the right pump body is opened, the right seawater pump chamber reduced-pressure outlet valve 31 is opened to release the pressure, and then the right seawater outlet valve 32 is opened to discharge the seawater. This cycle is repeated over time to ensure that sudden pressurisation and depressurisation does not occur during operation to avoid impact on the membrane 9, to help reduce pressure fluctuations in the conduit, to minimise pressure fluctuations and to ensure continuous flow of slurry.
Claims (10)
1. The utility model provides a deep sea mining elevator pump for coarse grain, a serial communication port, includes pump body part (2) and pipeline, pump body part (2) including a plurality of pump bodies (13) of parallelly connected setting, the bottom of a plurality of pump bodies (13) is connected with the pipeline jointly, one side of every pump body (13) is all imported and exported (7) through the ore pulp and is connected with ore pulp pipeline (1), is equipped with filter screen (6) on its connecting pipeline, pump body (13) opposite side all is connected with seawater pipeline (5).
2. Deep sea mining lift pump for coarse grain according to claim 1, characterized in that the pipe is a U-shaped pipe (4), both ends of the U-shaped pipe (4) are connected with the pump body (13) through the intermediate cover body (3), respectively.
3. Deep sea mining lift pump for coarse particles according to claim 1, characterized in that the pump body (13) is provided with a membrane (9), the edge of the membrane (9) being embedded in the pump body.
4. Deep sea mining lift pump for coarse particles according to claim 3, characterized in that the diaphragm (9) divides the pump chamber into a pulp pump chamber (8) and a seawater pump chamber (12).
5. Deep sea mining lift pump for coarse grain according to claim 3, characterized in that the diaphragm (9) is centrally connected with a push rod (10), the bottom of the push rod (10) passing through the pump body (13) and the intermediate cover body (3) in sequence and extending into the U-shaped pipe (4).
6. Deep sea mining lift pump for coarse particles according to claim 5, characterized in that the end of the push rod (10) protruding into the U-shaped pipe (4) is provided with a piston (16).
7. Deep sea mining lift pump for coarse grain according to claim 1, characterized by the fact that the pump body (13) is provided with a sea water inlet and outlet (11), said sea water inlet and outlet (11) being connected to the sea water pipeline (5).
8. Deep sea mining lift pump for coarse particles according to claim 2, characterized in that the end of the intermediate cover (3) close to the pump body (13) is fitted with a guide sleeve (15), the guide sleeve (15) being fitted outside the push rod (10).
9. Deep sea mining lift pump for coarse particles according to claim 1, characterized in that the slurry pipe (1) is provided with inlet and outlet valves.
10. Deep sea mining lift pump for coarse grain according to claim 1, characterized by the fact that the seawater pipeline (5) is provided with an inlet valve, a pressurized inlet valve, a pressure reducing valve and a pressure reducing outlet valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111184764.7A CN113958488B (en) | 2021-10-12 | 2021-10-12 | Deep sea mining lift pump for coarse particles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111184764.7A CN113958488B (en) | 2021-10-12 | 2021-10-12 | Deep sea mining lift pump for coarse particles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113958488A true CN113958488A (en) | 2022-01-21 |
| CN113958488B CN113958488B (en) | 2023-11-21 |
Family
ID=79463992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111184764.7A Active CN113958488B (en) | 2021-10-12 | 2021-10-12 | Deep sea mining lift pump for coarse particles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113958488B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040057853A1 (en) * | 2002-09-20 | 2004-03-25 | Ross Timothy P. | Master/slave pump assembly employing diaphragm pump |
| CN203939790U (en) * | 2014-07-22 | 2014-11-12 | 太原市鸿煷机械设备有限公司 | The reciprocal supercharging device of twin-tub |
| CN205937058U (en) * | 2016-08-25 | 2017-02-08 | 重庆水泵厂有限责任公司 | High temperature ore pulp diaphragm pump fluid end structure |
| CN111188618A (en) * | 2020-01-17 | 2020-05-22 | 江苏科技大学 | Deep sea mining lift pump |
-
2021
- 2021-10-12 CN CN202111184764.7A patent/CN113958488B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040057853A1 (en) * | 2002-09-20 | 2004-03-25 | Ross Timothy P. | Master/slave pump assembly employing diaphragm pump |
| CN203939790U (en) * | 2014-07-22 | 2014-11-12 | 太原市鸿煷机械设备有限公司 | The reciprocal supercharging device of twin-tub |
| CN205937058U (en) * | 2016-08-25 | 2017-02-08 | 重庆水泵厂有限责任公司 | High temperature ore pulp diaphragm pump fluid end structure |
| CN111188618A (en) * | 2020-01-17 | 2020-05-22 | 江苏科技大学 | Deep sea mining lift pump |
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| Publication number | Publication date |
|---|---|
| CN113958488B (en) | 2023-11-21 |
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