Deep-sea mining delivery pipe

Abstract

The utility model relates to a deep-sea mining delivery pipe, and belongs to the technical field of deep-sea mining delivery pipes. Comprising a conveying pipe body, the conveying pipe body comprises an armored steel sleeve, an inner rubber sealing layer, a first pressure-bearing layer, a spiral steel wire framework layer, a second pressure-bearing layer, a cable and optical cable layer and an outer protection layer which are sequentially arranged from inside to outside, one end of the conveying pipe body is provided with a fixed flange connector connected with a relay station, and the other end of the conveying pipe body is provided with a clamp connector connected with a mine collecting machine. The nitrile rubber is used as the inner rubber sealing layer, and the chloroprene rubber and the natural rubber are used as the outer protective layer, so that the oil resistance, seawater corrosion resistance and aging resistance of the conveying pipe are improved, and the service life of the conveying pipe is prolonged; sS316 stainless steel is used as the armored steel sleeve, so that the hardness and the wear resistance of the conveying pipe can be improved; the first pressure-bearing layer, the spiral steel wire framework layer and the second pressure-bearing layer play a supporting role and bear radial pressure, so that the compression resistance of the conveying pipe is improved, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to a deep sea mining conveying pipe, which belongs to the technical field of deep sea mining conveying pipes. Background Art

[0002] Seabed mining is the work of mining seabed mineral resources, mainly collecting shallow seabed surface sediments, such as placer, apatite and polymetallic nodules. At present, the key technologies for the mining of seabed resources mainly include two aspects: one is the mining of seabed ore bodies; the other is the underwater lifting and transportation of ore.

[0003] The currently known method of using pipeline transportation is to transport the minerals collected by the deep-water ore collector to the mining ship on the water surface through its delivery pump, delivery pipe, relay station, ore lifting pipe and lifting pump. Since the ore lifting pipe is transported vertically upward, the mining depth must reach 1,700 meters, and it is impossible to reach the mining ship by vertical transportation close to the ore lifting pipe. Therefore, it is necessary to use a delivery pipe for transportation. However, the existing delivery pipe has the disadvantages of poor corrosion resistance and poor wear resistance under deep-sea mining conditions, and it is difficult to meet the performance requirements in deep-sea mining. A new deep-sea mining delivery pipe is urgently needed to solve the above technical problems. Utility Model Content

[0004] The utility model aims to solve the technical problem that the existing conveying pipes have the disadvantages of poor corrosion resistance and poor wear resistance under deep-sea mining conditions and are difficult to meet the performance requirements in deep-sea mining, and proposes a deep-sea mining conveying pipe.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] A deep-sea mining conveying pipe comprises a conveying pipe body, wherein the conveying pipe body comprises an armored steel sleeve, an inner rubber sealing layer, a first pressure-bearing layer, a spiral steel wire skeleton layer, a second pressure-bearing layer, an electric cable layer and an outer protective layer which are sequentially arranged from the inside to the outside, a fixed flange joint connected to a relay station is provided at one end of the conveying pipe body, and a clamp joint connected to a mining machine is provided at the other end, a buoyancy bend is provided on the conveying pipe body, a buoyancy mechanism is provided on the buoyancy bend, the buoyancy bend comprises a first buoyancy bend and a third buoyancy bend, a second buoyancy bend is formed between the first buoyancy bend and the third buoyancy bend, and the bending radii of the first buoyancy bend, the second buoyancy bend and the third buoyancy bend are all 1-3 meters.

[0007] Preferably, the number of the buoyancy bends is at least two.

[0008] Preferably, adjacent buoyancy bends are distributed at equal intervals or at unequal intervals.

[0009] Preferably, the buoyancy mechanism includes an airbag, a pressure sensor, a control circuit board, a first transmitting module, a first receiving module and a battery. The airbag is equipped with a pressure sensor, a control circuit board, a first transmitting module, a first receiving module and a battery. The control circuit board is electrically connected to the first transmitting module, the first receiving module and the battery respectively.

[0010] Preferably, the ore collecting machine is provided with a second receiving module and a second transmitting module, the second receiving module is electrically connected to the access meter, the access meter is electrically connected to the alarm light; the second transmitting module is signal-connected to the relay station; the second receiving module is signal-connected to the first transmitting module.

[0011] Preferably, the airbag is connected to the delivery tube body by bundling.

[0012] Preferably, the outer wall of the outer protective layer is provided with a scale reflective strip.

[0013] Preferably, the outer wall of the outer protective layer is provided with a granular structure.

[0014] Preferably, the armored steel sleeve is made of SS316 stainless steel, the inner rubber sealing layer is nitrile rubber, the first pressure-bearing layer and the second pressure-bearing layer are fiber winding layers, and the outer protective layer is one or more of chloroprene rubber or natural rubber.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model uses nitrile rubber as an inner rubber sealing layer and chloroprene rubber and natural rubber as an outer protective layer, thereby improving the oil resistance, seawater corrosion resistance and aging resistance, as well as the service life of the conveying pipe; uses SS316 stainless steel as an armored steel sleeve, which can improve the hardness and wear resistance of the conveying pipe; the first pressure-bearing layer, the spiral steel wire skeleton layer, and the second pressure-bearing layer play a supporting role, withstand radial pressure, improve the pressure resistance of the conveying pipe, and extend the service life.

[0017] 2. The utility model provides a first buoyancy bend, a second buoyancy bend, a third buoyancy bend and a buoyancy mechanism. During the operation of the conveying pipe, the buoyancy mechanism enables the first buoyancy bend, the second buoyancy bend and the third buoyancy bend to maintain a "double arch" shape, thereby ensuring the performance of the conveying pipe itself, facilitating the operator to use, improving the freedom of movement of the conveying pipe, and facilitating the free movement of the ore collecting vehicle within a certain range.

[0018] 3. The utility model provides a scale reflective strip, which makes it convenient to judge the depth position according to the scale in a deep sea environment, and then adjust the position of the delivery pipe.

[0019] 4. The utility model improves the wear resistance and service life of the conveying pipe by providing a particle structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the conveying pipe;

[0021] Figure 2 It is a schematic diagram of the structure of the delivery pipe when it is in use;

[0022] Figure 3 is a schematic diagram of the buoyancy mechanism structure;

[0023] Figure 4 This is a diagram of the mining machine control system.

[0024] In the figure, 1. armored steel sleeve; 2. inner rubber sealing layer; 3. first pressure-bearing layer; 4. spiral steel wire skeleton layer; 5. second pressure-bearing layer; 6. outer protective layer; 7. buoyancy bend; 71. first buoyancy bend; 72. second buoyancy bend; 73. third buoyancy bend; 8. buoyancy mechanism; 81. airbag; 82. pressure sensor; 83. control circuit board; 84. first transmitting module; 85. first receiving module; 86. battery; 9. ore collecting machine; 91. second receiving module; 92. second transmitting module; 93. access meter; 94. alarm light; 10. relay station; 11. cable and optical cable layer; 12. conveying pipe body. DETAILED DESCRIPTION

[0025] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0026] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0027] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0028] Embodiment 1

[0029] like Figure 1 to Figure 2As shown, a deep-sea mining conveying pipe comprises a conveying pipe body 12, wherein the conveying pipe body 12 comprises an armored steel sleeve 1, an inner rubber sealing layer 2, a first pressure-bearing layer 3, a spiral steel wire skeleton layer 4, a second pressure-bearing layer 5, an electric cable layer 11 and an outer protective layer 6 which are sequentially arranged from the inside to the outside, a fixed flange joint connected to a relay station 10 is provided at one end of the conveying pipe body 12, and a clamp joint connected to a ore collecting machine 9 is provided at the other end, a buoyancy bend 7 is provided on the conveying pipe body 12, a buoyancy mechanism 8 is provided on the buoyancy bend 7, the buoyancy bend 7 comprises a first buoyancy bend 71 and a third buoyancy bend 73, a second buoyancy bend 72 is formed between the first buoyancy bend 71 and the third buoyancy bend 73, and the bending radii of the first buoyancy bend 71, the second buoyancy bend 72 and the third buoyancy bend 73 are all 1 meter.

[0030] The number of the buoyancy bending parts 7 is two.

[0031] Adjacent buoyancy curved portions 7 are distributed at equal intervals.

[0032] The armored steel sleeve 1 is made of SS316 stainless steel, the inner rubber sealing layer 2 is nitrile rubber, the first pressure-bearing layer 3 and the second pressure-bearing layer 5 are fiber winding layers, and the outer protective layer 6 is one or more of chloroprene rubber and natural rubber. By using nitrile rubber as the inner rubber sealing layer 2 and chloroprene rubber and natural rubber as the outer protective layer 6, the oil resistance, seawater corrosion resistance and aging resistance of the conveying pipe, as well as the service life, can be improved; by using SS316 stainless steel as the armored steel sleeve 1, the hardness and wear resistance of the conveying pipe can be improved; the cable and optical cable layer 11 is used for power supply and communication of the ore collecting machine 9, the airbag 81 and the relay station 10.

[0033] Embodiment 2

[0034] like Figure 3 As shown, the buoyancy mechanism 8 includes an airbag 81, a pressure sensor 82, a control circuit board 83, a first transmitting module 84, a first receiving module 85 and a battery 86. The airbag 81 is provided with a pressure sensor 82, a control circuit board 83, a first transmitting module 84, a first receiving module 85 and a battery 86. The control circuit board 83 is electrically connected to the first transmitting module 84, the first receiving module 85 and the battery 86 respectively.

[0035] like Figure 4 As shown, the ore collecting machine 9 is provided with a second receiving module 91 and a second transmitting module 92, the second receiving module 91 is electrically connected to the access meter 93, the access meter 93 is electrically connected to the alarm light 94; the second transmitting module 92 is signal-connected to the relay station 10; the second receiving module 91 is signal-connected to the first transmitting module 84.

[0036] The airbag 81 is bundled and connected to the conveying pipe body 12, and the airbag 81 is firmly fixed on the conveying pipe body 12. Ultra-light gas is stored in the airbag 81, which can float the conveying pipe body 12; the pressure sensor 82 adopts a probe method, and cooperates with the access instrument 93 to display the current pressure value of the airbag 81 in real time, and transmit it to the second receiving module 91 in the ore collecting machine 9. The second receiving module 91 transmits the signal to the access instrument 93, and the access instrument 93 analyzes the signal and then transmits the signal to the alarm light 94.

[0037] The alarm light 94 is automatically triggered when the pressure sensor 82 detects that the pressure value in the airbag 81 is lower than the standard value. At the same time, an alarm is sent to the relay station 10 and the operating system of the ore collector 9. The alarm light 94 lights up, and the access instrument 93 can show which buoyancy position of the airbag 81 issued the alarm. The alarm light 94 and the access instrument 93 are connected to the original control system of the ore collector 9.

[0038] Embodiment 3

[0039] The difference between this embodiment and the first embodiment is that the outer wall of the outer protective layer 6 is provided with a scale reflective strip, which is convenient for operators to judge the depth position according to the scale in the deep sea environment and then adjust the position of the conveying pipe.

[0040] Embodiment 4

[0041] The difference between this embodiment and the first embodiment is that the outer wall of the outer protective layer 6 is provided with a granular structure, thereby improving the wear resistance and service life of the conveying pipe.

[0042] The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A deep sea mining pipeline, characterized in that: The invention comprises a conveying pipe body (12), wherein the conveying pipe body (12) comprises an armored steel sleeve (1), an inner rubber sealing layer (2), a first pressure-bearing layer (3), a spiral steel wire skeleton layer (4), a second pressure-bearing layer (5), an electric cable layer (11) and an outer protective layer (6) which are arranged in sequence from the inside to the outside. One end of the conveying pipe body (12) is provided with a fixed flange joint connected to a relay station (10), and the other end is provided with a clamp joint connected to a mining machine (9). A buoyancy bend (7) is provided on the conveying pipe body (12), and a buoyancy mechanism (8) is provided on the buoyancy bend (7). The buoyancy bend (7) comprises a first buoyancy bend (71) and a third buoyancy bend (73). A second buoyancy bend (72) is formed between the first buoyancy bend (71) and the third buoyancy bend (73). The bending radii of the first buoyancy bend (71), the second buoyancy bend (72) and the third buoyancy bend (73) are all 1-3 meters.

2. The deep sea mining delivery pipe according to claim 1, characterized in that: The number of the buoyancy bending parts (7) is at least two.

3. The deep sea mining conveying pipe according to claim 1, characterized in that: Adjacent buoyancy curved portions (7) are distributed at equal intervals or at unequal intervals.

4. The deep sea mining conveying pipe according to claim 1 or 2, characterized in that: The buoyancy mechanism (8) comprises an air bag (81), a pressure sensor (82), a control circuit board (83), a first transmitting module (84), a first receiving module (85) and a battery (86); the air bag (81) is provided with a pressure sensor (82), a control circuit board (83), a first transmitting module (84), a first receiving module (85) and a battery (86); the control circuit board (83) is electrically connected to the first transmitting module (84), the first receiving module (85) and the battery (86) respectively.

5. The deep sea mining conveying pipe according to claim 1, characterized in that: The ore collecting machine (9) is provided with a second receiving module (91) and a second transmitting module (92); the second receiving module (91) is electrically connected to an access meter (93), and the access meter (93) is electrically connected to an alarm light (94); the second transmitting module (92) is signal-connected to a relay station (10); and the second receiving module (91) is signal-connected to a first transmitting module (84).

6. The deep sea mining conveying pipe according to claim 4, characterized in that: The air bag (81) and the delivery tube body (12) are connected in a binding manner.

7. The deep sea mining delivery pipe according to claim 1, characterized in that: The outer wall of the outer protective layer (6) is provided with a scale reflective strip.

8. The deep sea mining conveying pipe according to claim 1, characterized in that: The outer wall of the outer protective layer (6) is provided with a granular structure.

9. The deep sea mining delivery pipe according to claim 1, characterized in that: The armored steel sleeve (1) is made of SS316 stainless steel, the inner rubber sealing layer (2) is nitrile rubber, the first pressure-bearing layer (3) and the second pressure-bearing layer (5) are fiber winding layers, and the outer protective layer (6) is chloroprene rubber or natural rubber.

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