CN211139581U - Buoyancy self-elevating lifting cabin - Google Patents
Buoyancy self-elevating lifting cabin Download PDFInfo
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- CN211139581U CN211139581U CN201922106139.5U CN201922106139U CN211139581U CN 211139581 U CN211139581 U CN 211139581U CN 201922106139 U CN201922106139 U CN 201922106139U CN 211139581 U CN211139581 U CN 211139581U
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Abstract
The embodiment of the utility model discloses buoyancy is from lift-type lifting compartment, including the cabin body the inside of the cabin body is provided with and is used for adjusting the ballast tank of the cabin body buoyancy in aqueous to and be used for loading a plurality of goods storehouses of mineral still be provided with in the cabin body with the ballast tank is connected and is used for discharging the force (forcing) pump of water in the ballast tank the cabin body bottom be provided with the ballast water of ballast tank intercommunication is imported and exported. The utility model discloses need not to process the mineral, the buoyancy change of the cabin body is adjusted through the water carrying capacity of the interior ballast tank of the cabin body of adjusting the lifting chamber, can realize promoting the bold mineral to the purpose of the surface of water.
Description
Technical Field
The embodiment of the utility model provides a relate to technical seabed mineral development technical field, concretely relates to buoyancy is from lift-type lifting cabin.
Background
With the gradual depletion of mineral resources on land, the development of mineral resources in deep sea is gradually emphasized. The seabed is rich in a large amount of mineral resources such as manganese nodules, multi-metal sulfides, cobalt-rich crusts and the like, and has a large amount of rare metals, so that the development of the seabed mineral resources becomes an important force for supporting future economic, industrial and scientific development. At present, China totally obtains 5 exclusive exploration areas approved by a seabed management authority, develops deep sea mineral mining equipment, and enhances technical reserve, which is important work for supporting deep sea mining in China. The exploration shows that: most of manganese nodules on the deep sea plain are positioned at water depth of 4000-; the cobalt-rich crusts have the largest reserve in the Pacific ocean and the water depth of 800-. Therefore, the lifting of the submarine minerals to the water surface is an important research content for the mining of deep sea minerals.
Through decades of development, the currently more feasible deep sea mining can be divided into: a dragline mining method, a continuous rope bucket method, a pipeline hoisting method and a shuttle boat mining method. The trailer-type mining method cannot be controlled, the recovery rate is low, and continuous mining cannot be performed, so that the productivity is low. The continuous rope bucket method has the problem that the ropes are too close and are easy to wind. At present, pipeline lifting methods are the most studied, and certain sea tests are also developed. Although continuous production is possible with the pipe-lift method, the system has many limitations:
minerals need to be crushed to a small granularity and then can be conveyed to a water surface supporting system through hydraulic transportation, the energy consumption in the process of crushing the minerals is large, and the marine environment can be greatly polluted.
In this regard, particle erosion is a problem that is difficult to avoid in this system, especially erosion of lift pumps and lift lines is extremely severe; particles tend to clog on the lift pump, resulting in production downtime and even equipment failure; by hydraulic transport, the system is less efficient.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides a buoyancy is from lift-type lifting chamber to mineral needs breakage to less granularity to just can pass through the problem of water conservancy transportation to the surface of water among the solution prior art.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
the embodiment of the utility model provides an aspect of buoyancy is from lift-cabin, including the cabin body the inside of the cabin body is provided with and is used for adjusting the ballast tank of the cabin body buoyancy in aqueous to and be used for loading a plurality of goods storehouses of mineral still be provided with in the cabin body with the ballast tank is connected and is used for discharging the force (forcing) pump of the water in the ballast tank the cabin body bottom be provided with the ballast water of ballast tank intercommunication is imported and exported.
As a preferable aspect of the present invention, the shape of the lift chamber is a capsule shape.
As a preferred scheme of the utility model, the goods entry at warehouse top is the arch shape, and is in goods entrance sets up and can follows cabin body top circumferential slip's top arc door the goods exit of warehouse bottom is provided with bottom arc door.
As a preferred scheme of the utility model, the quantity of warehouse is 4, and 4 the warehouse certainly the one end to the other end of the cabin body set up side by side.
As a preferred scheme of the utility model, the inside bottom table of storehouse sets up to the inclined plane of export from inside to the goods.
As a preferred scheme of the utility model, the both ends of the cabin body are provided with the lug.
The utility model discloses an embodiment has following advantage:
the utility model discloses the implementation need not to carry out broken processing to mineral and handles, only needs simply to cut to can place the size at the elevator cabin, utilizes buoyancy change between two elevator cabins and interact can promote the bold mineral to the surface of water fast, but to environmental pollution greatly reduced.
The utility model has no problems of erosion and blockage similar to pipeline lifting systems caused by particles; and 3, the minerals are lifted to the water surface by virtue of buoyancy through ballast adjustment of the buoyancy tank, an additional power system is not needed to do work to lift the minerals, and the efficiency can be greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a schematic structural diagram of a buoyant jack-up bulk seafloor mineral lifting system according to an embodiment of the present invention;
FIG. 2 is a right side view of FIG. 1;
fig. 3 is a schematic cross-sectional structure view of a lift cabin provided in an embodiment of the present invention;
fig. 4 is a top view of fig. 3.
In the figure:
1-lifting a cabin; 2-a surface support vessel; 3-sea dredging well; 4-a water surface pulley block supporting seat; 5-the seabed; 6-a suction anchor; 7-a tension leg; 8-a submarine pulley block supporting seat; 9-a top guide pulley block; 10-a subsea guide pulley block; 11-polyester cable; 12-a sea floor positioning slot; 13-front door type crane; 14-rear gantry crane;
101-lifting lugs; 102-top curved door; 103-a cargo hold; 104-bottom curved door; 105-ballast tank; 106-ballast water import and export.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 and 2, the present invention provides a buoyancy self-elevating type large seabed mineral lifting system, which mainly comprises three parts of a water surface supporting system, an anchoring system and a lifting system.
The water surface support system is arranged on the water surface and used for receiving minerals lifted to the water surface from the seabed, and specifically comprises a water surface support ship 2 floating on the water surface, a front portal crane 13 and a rear portal crane 14 which are arranged on the water surface support ship 2, two ends of the water surface support ship are provided with a sea through well 3, and one side of a well mouth of each sea through well 3, which is close to the center of the water surface support ship, is provided with a water surface pulley block support seat 4.
The anchoring system is mainly used for positioning a water surface support ship 2 of the water surface support system, so that the water surface support ship 2 and a submarine mining area are relatively stable, and mainly comprises a plurality of suction anchors 6 fixed at the bottom of a seabed 5 and a plurality of tension legs 7 fixed on the suction anchors 6, wherein the tension legs 7 are fixedly connected with the water surface support ship 2, and a submarine pulley block support seat 8 arranged corresponding to the water surface pulley block support seat 4 is fixed on the suction anchors 6.
Two tension legs 7 are generally provided for fixing the front and rear ends of the surface support vessel 2.
The lifting system is used for lifting the minerals to the water surface supporting system from the seabed, and two ends of the lifting body system are respectively arranged on the water surface supporting system and the seabed anchoring system; the lifting system comprises a transmission system arranged between the water surface support system and the seabed, and two lifting cabins 1 which move along the transmission system in an alternating manner under the action of buoyancy change, and the function of automatically lifting the lifting cabins 1 is realized mainly by changing the buoyancy of the two lifting cabins 1.
The transmission system comprises a top guide pulley block 9 arranged on a water surface pulley block supporting seat 4 and a seabed guide pulley block 10 arranged on a seabed pulley block supporting seat 8, two lifting cabins 1 are respectively arranged below the sea shafts 3 on two sides of the water surface supporting ship 2, one ends of the two lifting cabins 1 are connected by bypassing the outer side of the top guide pulley block 9 through polyester cables 11, the other ends of the two lifting cabins 1 are connected by bypassing the outer side of the seabed guide pulley block 10 through the polyester cables 11, the polyester cables 11 penetrate the sea shafts 3, and a lifting transport line is respectively formed below the sea shafts 3 on two sides of the water surface supporting ship 2.
A seabed positioning groove 12 is arranged at the position of the seabed pulley block supporting seat 8, and the shape of the top of the seabed positioning groove 12 is matched with the shape of the bottom of the lifting cabin 1 so as to position the lifting cabin 1 when the lifting cabin runs to the seabed.
When one of the lifting cabins is floated to the surface of the supporting ship 3 for unloading, the bottom of the other lifting cabin is just arranged in the positioning groove 12 on the seabed.
Four suction anchors 6 are arranged side by side, wherein the two suction anchors 6 on the inner side are used for installing the submarine pulley block supporting seat 8, and the two suction anchors 6 on the outer side are used for installing tension legs 7.
Example (b):
as shown in fig. 3 and 4, the present invention further provides a lifting chamber for a buoyancy self-elevating type massive seafloor mineral lifting system, comprising a chamber body 100, a ballast tank 105 for adjusting the buoyancy of the chamber body 100 in water and a plurality of cargo tanks 103 for loading minerals, wherein a pressure pump connected to the ballast tank 105 for discharging water in the ballast tank 105 is further provided in the chamber body 100, and a ballast water inlet/outlet 106 communicated with the ballast tank 105 is provided at the bottom of the chamber body 100. The ballast adjustment makes the cabin bodies of the two lifting cabins present positive buoyancy or negative buoyancy, thereby achieving the purpose of floating or submerging.
The goods entry at storehouse 103 top is the arch shape, and the goods entrance sets up and to follow 100 top annular slip's of cabin body top arc door 102 the goods exit of storehouse 103 bottom is provided with bottom arc door 104, the inside bottom table of storehouse 103 sets up to the inclined plane of export to the goods from inside, promotes to the surface of water when supporting on ship 3 and unload at lifting compartment 1, because there is not water pressure, the goods can directly roll off under the action of gravity.
The number of the cargo compartments 103 is 4, and 4 cargo compartments 103 are arranged side by side from one end to the other end of the cabin 100.
The specific application mode of the lifting cabin in the buoyancy self-elevating massive seabed mineral lifting system is as follows: for convenience of explanation, the right hand hoist in fig. 1 is designated as hoist a and the left hand hoist B.
When the mine is lifted, the top of the lifting cabin A is connected with a high-strength polyester cable 11, the high-strength polyester cable is sunk into the seabed under ballasting condition and is placed on the seabed positioning groove 10, and the lifting cabin A is fixed by a clamping device.
The left end of the high-strength polyester cable connected with the top of the lifting cabin A is connected with the top of the lifting cabin B, the high-strength polyester cable at the bottom of the lifting cabin A passes through the seabed positioning groove 12 under the traction of the ROV, bypasses the seabed guide pulley block 10 and is connected with the lifting lug at the bottom of the lifting cabin B, and then the high-strength polyester cable 4 is in a tensioning state through a winch system of the water surface support ship 3.
After the hoisting cabin A is filled with large mineral blocks, seawater in the ballast tank 24 is removed through a pressurizing pump in the cabin, so that the buoyancy of the cabin body of the hoisting cabin A is larger than the gravity, meanwhile, the goods of the hoisting cabin B are unloaded (no load during first installation), and water is pressurized and loaded in the ballast tank, so that the gravity is larger than the buoyancy.
Subsequently, the gripping means are disengaged and the lift compartment B will submerge under gravity with the empty ballast compartment and the lift compartment a will float under buoyancy with the loaded bin. Due to the combined action of the effective gravity and the effective buoyancy, the lifting cabin A can quickly float to the water surface, and the lifting cabin B can quickly submerge to the seabed.
Wherein, the clamping device is only used for fixing the lifting cabin A, and any existing fixing mode can be adopted.
And when the lifting cabin A and the lifting cabin B are close to the designated parking points, the speed is reduced through the winch system. After the lifting cabin A rises to the water surface to support the ship, the bottom arc-shaped door is opened, minerals are automatically unloaded under the action of gravity through the inclined panel at the bottom of the cargo cabin, and water is pressurized and loaded into the ballast tank after the minerals are unloaded.
And simultaneously, after the ballast tank of the lifting chamber B reaches the seabed, the top arc-shaped door is opened, minerals are added into the cargo hold, and during the period, the seawater in the ballast tank is discharged through the high-pressure pump, so that the buoyancy of the lifting chamber is larger than the gravity. Because the clamping device acts at the moment, the lifting cabin can not float upwards, and when the goods are full, the clamping device is loosened, and the lifting cabin can float upwards.
Specifically, taking a cylindrical steel buoyancy chamber with the diameter of 6m, the height of 10m and the wall thickness of 10mm as an example, if 4 cylindrical cargo carrying chambers with the diameter of 2m and the height of 10m are designed on the buoyancy chamber, the single effective carrying capacity can exceed 130 tons, the size of the buoyancy chamber can be increased if necessary, the effective carrying capacity can be greatly increased, and the effective carrying capacity can also be further increased by adopting a polymer material.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (6)
1. The utility model provides a buoyancy self-elevating type lifting cabin, characterized in that includes the cabin body (100) the inside of cabin body (100) is provided with and is used for adjusting ballast tank (105) of cabin body (100) buoyancy in water to and a plurality of cargo hold (103) that are used for loading mineral still be provided with in the cabin body (100) with ballast tank (105) are connected and are used for discharging the force (forcing) pump of the water in ballast tank (105) the cabin body (100) bottom be provided with ballast water import and export (106) that ballast tank (105) communicate.
2. A buoyant jack-up hoist according to claim 1, wherein the hoist (1) is capsule shaped in profile.
3. The buoyant jack-up hoist capsule according to claim 1, wherein the cargo entrance at the top of the cargo tank (103) is arch-shaped, and a top arc door (102) capable of sliding circumferentially along the top of the tank body (100) is provided at the cargo entrance, and a bottom arc door (104) is provided at the cargo exit at the bottom of the cargo tank (103).
4. A buoyant jack-up riser according to claim 1 or 3 wherein the number of the cargo tanks (103) is 4 and 4 of the cargo tanks (103) are arranged side by side from one end of the hull (100) to the other.
5. A buoyant jack-up elevating vessel according to claim 1 or 3 wherein the internal bottom surface of the cargo tank (103) is provided as an inclined surface from the inside toward the cargo outlet.
6. A buoyant jack-up hoist according to claim 1 or 3, wherein the hull (100) is provided with lifting lugs (101) at both ends.
Priority Applications (1)
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CN201922106139.5U CN211139581U (en) | 2019-11-29 | 2019-11-29 | Buoyancy self-elevating lifting cabin |
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CN201922106139.5U CN211139581U (en) | 2019-11-29 | 2019-11-29 | Buoyancy self-elevating lifting cabin |
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