CN112502713A - Cutting and rock-breaking combined seabed ore body crushing equipment - Google Patents
Cutting and rock-breaking combined seabed ore body crushing equipment Download PDFInfo
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- CN112502713A CN112502713A CN202011612046.0A CN202011612046A CN112502713A CN 112502713 A CN112502713 A CN 112502713A CN 202011612046 A CN202011612046 A CN 202011612046A CN 112502713 A CN112502713 A CN 112502713A
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- 238000004891 communication Methods 0.000 claims abstract description 21
- 239000011435 rock Substances 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 16
- 238000007667 floating Methods 0.000 claims description 5
- 230000003116 impacting effect Effects 0.000 abstract description 4
- 238000002360 preparation method Methods 0.000 abstract description 2
- 238000000638 solvent extraction Methods 0.000 abstract description 2
- 238000005065 mining Methods 0.000 description 21
- 229910052500 inorganic mineral Inorganic materials 0.000 description 10
- 239000011707 mineral Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 206010039509 Scab Diseases 0.000 description 5
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 3
- 239000010941 cobalt Substances 0.000 description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000002367 phosphate rock Substances 0.000 description 1
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- -1 rare element placer Chemical compound 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C50/00—Obtaining minerals from underwater, not otherwise provided for
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- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a cutting and rock-breaking combined seabed ore body breaking device, which comprises a cutting device, a hydraulic impact device, a walking device and a seabed repeater, wherein the cutting device is arranged on the seabed ore body breaking device; the cutting device and the hydraulic impact device are respectively arranged at the front end and the rear end of the walking device; the cutting device and the hydraulic impact device are respectively used for cutting, partitioning and impacting and crushing the ore body, the walking device is connected with the submarine repeater through a power supply and communication cable, the submarine repeater is provided with a cable supply winch, and the power supply and communication cable is wound on the cable supply winch. The invention has simple and reliable structure, the front end and the rear end of the walking device are respectively provided with a plurality of cutting devices and hydraulic impact devices, the cutting subareas and the impact crushing are organically combined, the crushing of the seabed hard ore body can be efficiently and reliably realized, and the preparation is made for subsequent efficient and highly reliable ore collection.
Description
Technical Field
The invention belongs to the technical field of submarine mining equipment, and particularly relates to submarine ore body crushing equipment with a cutting and impact rock breaking function combination.
Background
Nearly 71% of the earth's surface is covered by the ocean, with a total area of about 3.62 hundred million km2In addition to abundant biological resources, the seabed stores extremely abundant mineral resources. So far, it has been found that the mineral resources of polymetallic nodule, phosphorite, precious metal, rare element placer, sulphide ore and the like in the seabed reach 6000 hundred million tons. If one hundred sixty billion tons of polymetallic nodule ore stored in the pacific ocean bottom is mined, the nickel can be used for two thousand years all over the world; cobalt is used for 34 ten thousand years; manganese is used for 18 ten thousand years; the copper is used for 1000 years. With the advent of the deep sea submarine regional resource exploration and development method, mining in deep sea mining areas has become a focus of social attention. All countries in the world begin to face the field of vision to the sea, which is a treasure collecting basin, strives for investments of manpower and material resources, uses seabed mineral resources as future reserve resources, and uses the mining technology of the sea mineral resources as a future strategic target.
Deep sea mining is a major task where deep sea mineral resources are collected from the seafloor and transported to a mining platform. In this process, it is necessary to ensure high efficiency and high reliability and high economy. The deep sea mining system has the main scheme that: a continuous rope bucket type mining system, an automatic shuttle type mining vehicle and a mining machine-pipeline transportation deep sea mining system. The conventional scheme of the deep sea bottom mining system mainly comprises a deep sea combined hydraulic lifting mining system (belonging to the third type), and mainly comprises a deep sea ore collector, a lifting ore conveying system, a mining ship, a power system and the like. The working process comprises the steps of collecting deep sea mineral resources (multi-metal nodules) by a deep sea mining machine, and then conveying the deep sea mineral resources to a mining ship by a lifting system through a hose and a hard pipe. For deep sea mining vehicles, it is common to obtain only bare metal nodule mineral resources, such as manganese nodules or polymetallic nodules, from less than 1 mm to tens of cm in diameter on the seabed surface. These mineral resources can be collected very well by the mining trucks, which is also the simplest. However, for mining crusts, sulfide ores and the like which are enriched in the seabed, firstly, ore bodies need to be crushed, and then ore collection is carried out. For example, the seabed cobalt-rich crusts are produced in the water depth of 1-3.5 kilometers, are light and fragile, have a flower-bud-like crust shape on the surface, and have the thickness of several millimeters to ten and several centimeters generally. These important cobalt-rich crusts and sulphide ores are usually distributed in a hardened form and are bonded to the general matrix rock, so that the ore-collecting trucks cannot collect them. Therefore, in order to efficiently "strip" hard mineral resources such as crusts and sulfides from common rock matrices, innovative design of ore body crushing equipment is required to achieve an efficient and highly reliable mining process.
Disclosure of Invention
In order to solve the technical problems, the invention provides the combined cutting and rock-breaking seabed ore body crushing equipment which is simple and reliable in structure, can combine the cutting subarea with the impact crushing, and can efficiently and reliably realize the crushing of seabed hard ore bodies.
The technical scheme adopted by the invention is as follows: a cutting and rock-breaking combined seabed ore body breaking device comprises a cutting device, a hydraulic impact device, a walking device and a seabed repeater; the cutting device and the hydraulic impact device are respectively arranged at the front end and the rear end of the walking device;
the cutting device comprises a plurality of supporting arms I, a hydraulic motor I, a cutting cutter disc, a hydraulic cylinder I and a transmission shaft; one end of the supporting arm I is hinged with the walking device, the other end of the supporting arm I is fixedly provided with a hydraulic motor I, the middle parts of the supporting arms I are connected through a connecting beam I, and the supporting arms I are arranged in parallel; the hydraulic motor I is connected with a transmission shaft, and a plurality of cutter discs are fixedly arranged on the transmission shaft; the connecting beam I is hinged with one end of the hydraulic cylinder I, and the other end of the hydraulic cylinder I is hinged with the traveling device;
the hydraulic impact device comprises a plurality of supporting arms II, a hydraulic cylinder II and a hydraulic impactor; one end of the supporting arm II is hinged with the walking device; the support arms II are arranged in parallel, and the middle parts of the support arms II are fixedly connected through a plurality of connecting beams II; one of the connecting beams II is hinged with one end of a hydraulic cylinder III, and the other end of the hydraulic cylinder III is hinged with the traveling device; the connecting beam III is arranged at the other end of the supporting arm II through a bearing and can rotate, and the connecting beam III is arranged in parallel to the transmission shaft; one of the connecting beams II is hinged with one end of the hydraulic cylinder II, and the other end of the hydraulic cylinder II is hinged with the connecting beam III; the hydraulic impactors are fixedly arranged on the connecting beam III, the hydraulic impactors are perpendicular to the connecting beam III, and the hydraulic impactors are positioned between planes where the two cutting cutterheads on the outermost side are positioned;
the walking device is connected with the submarine repeater through a power supply and communication cable, the submarine repeater is provided with a cable supply winch, and the power supply and communication cable is wound on the cable supply winch.
In the seabed ore body crushing equipment combining cutting and rock breaking impact, the walking device comprises a supporting and controlling platform, a frame chassis and a crawler belt, the supporting and controlling platform can be pivotally arranged on the frame chassis, a driving wheel and a driven wheel are respectively arranged at two sides of the frame chassis, the crawler belt is wrapped on the driving wheel and the driven wheel at the same side, the driving wheel is connected with a hydraulic motor II, and the hydraulic motor II is arranged on the frame chassis; support arm I, support arm II, pneumatic cylinder I, pneumatic cylinder III articulate on supporting and control platform.
In the above cutting and rock-breaking combined seabed ore body crushing equipment, the support and control platform comprises a support frame, a hydraulic pump station and a hydraulic loop control system, the support frame is pivotably mounted on the frame chassis, and the hydraulic pump station and the hydraulic loop control system are both mounted on the support frame; the hydraulic pump station is connected with a hydraulic motor I, a hydraulic motor II, a hydraulic cylinder I, a hydraulic cylinder II, a hydraulic cylinder III and a hydraulic impactor through a hydraulic loop control system; and the hydraulic pump station and the hydraulic loop control system are connected with a power supply and communication cable.
The seabed ore body crushing equipment combining cutting and rock impact crushing comprises two supporting arms I, wherein two cutting cutter discs are fixedly arranged on a transmission shaft; the tail end of an impact drill rod of the hydraulic impactor is in a blade shape or a cone-point shape.
In the seabed ore body crushing equipment combining cutting and rock breaking by impact, the two supporting arms II are included, and a hydraulic impactor is arranged between the planes where the two adjacent cutting cutter discs are located.
In the above-mentioned cutting and broken rock combined seabed ore body crushing equipment of impact, running gear on be equipped with the sonar transmitter, seabed repeater on be equipped with sonar receiver and control system, the sonar receiver is connected with control system.
In the above-mentioned cutting and rock-breaking combined seabed ore body crushing equipment, a plurality of floating balls are arranged on the power supply and communication cable connecting the traveling device and the seabed repeater.
Compared with the prior art, the invention has the beneficial effects that:
the invention has simple and reliable structure, the front end and the rear end of the walking device are respectively provided with the cutting device and the hydraulic impact device, the cutting device is used for cutting and partitioning the ore body, the hydraulic impact device is used for impact crushing of the ore body, and the cutting partition and the impact crushing are organically combined, so that the crushing of the hard ore body on the seabed can be realized efficiently and reliably, and the preparation is made for subsequent efficient and reliable ore collection. The angle between the hydraulic impactor and the ground is adjusted through the hydraulic cylinder II, so that the device is more suitable for complicated submarine landforms, and the adaptability is improved.
According to the invention, the electric power and signals of the sea surface support system are transmitted to the submarine repeater fixed on the seabed through the umbilical cable, and then the submarine repeater provides electric power for the cutting cutter disc, the hydraulic impactor and the like to work, so that the phenomenon that submarine ore body crushing equipment walks in the working process to drag the umbilical cable with huge mass is avoided, and the efficiency and reliability of the system are effectively improved. According to the invention, the power supply and communication cable is provided with the plurality of floating balls, so that the power supply and communication cable can be effectively prevented from being wound on submarine rocks and the like, and the operation reliability is greatly improved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a perspective view of the walking device of the present invention.
Fig. 3 is a plan view of the running gear of the present invention.
Fig. 4 is a schematic structural view of the walking device of the present invention in a walking state.
In the figure: 1-hydraulic motor I; 2-a cutter disc; 3-a support arm I; 4, connecting a beam I; 5, a hinge seat; 6-supporting and controlling the platform; 7-power supply and communication cable; 8-support arm II; 9-connecting beam II; 10-hydraulic cylinder II; 11-piston rod II; 12-connecting beam iii; 13-a hydraulic impactor; 14-connecting beam II; 15-hydraulic cylinder III; 16-impact drill rod; 17-a crawler belt; 18-hydraulic motor ii; 19-a transmission shaft; 20-a piston rod I; 21-hydraulic cylinder body I; 22-piston rod iii; 23-sonar transmitter; 24-floating ball; 25-supply cable winch; 26-subsea repeaters; 27-sonar receiver; 28-umbilical cable.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 to 3, the present invention includes a cutting device, a hydraulic impact device, a traveling device, and a subsea repeater; the walking device comprises a supporting and controlling platform 6, a frame chassis and a crawler 17, wherein the supporting and controlling platform 6 can be pivotally installed on the frame chassis, a driving wheel and a driven wheel are respectively arranged on two sides of the frame chassis, the driving wheel and the driven wheel on the same side are wrapped by the crawler, the driving wheel is connected with a hydraulic motor II 18, and the hydraulic motor II 18 is installed on the frame chassis. The hydraulic motor II 18 drives the driving wheel to rotate, and further drives the crawler belt to rotate, so that the walking device walks on the seabed. The support and control platform 6 can perform circular rotation movement on the upper part of the frame chassis. The supporting and controlling platform 6 comprises a supporting rack, a hydraulic pump station and a hydraulic loop control system, wherein the hydraulic pump station is connected with a hydraulic motor I1, a hydraulic motor II 18, a hydraulic cylinder I, a hydraulic cylinder II, a hydraulic cylinder III and a hydraulic impactor 13 through the hydraulic loop control system. The support frame is connected with the frame chassis in a rotatable motion mode, and the hydraulic pump station and the hydraulic loop control system are both installed on the support frame.
The supporting and controlling platform 6 is connected with the submarine repeater 26 through the power supply and communication cable 7, so that power transmission and information intercommunication are realized. The hydraulic pump station and the hydraulic loop control system are both connected with a power supply and communication cable 7. The two floating balls 24 are arranged on the power supply and communication cable 7, so that the power supply and communication cable 7 can be effectively prevented from falling into the complex seabed ground to cause coil breakage with rocks, and the operation reliability is greatly improved. The subsea repeaters 26 are connected by umbilical cables 28 to a surface support system, which may be a mining vessel or the like. The umbilical 28 not only can transmit the power of the sea surface support system to the subsea repeater 26, but also can realize the information communication between the subsea repeater 26 and the sea surface support system. The submarine repeater 26 is provided with a cable supply winch 25, the cable supply winch 25 is connected with a motor, the power supply and communication cable 7 is wound on the cable supply winch 25, the cable supply winch 25 is driven by the motor to release the cable, the cable releasing speed is matched with the traveling speed of the crawler, and the situation that the power supply and communication cable 7 is broken due to overlarge pulling force is avoided. The support and control platform 6 still install sonar transmitter 23, be equipped with sonar receiver 27 on the submarine repeater 26, sonar receiver 27 connects the control system of submarine repeater 26, and sonar transmitter 23 makes sound to transmit sonar receiver 27, is solved by the control system of submarine repeater 26, learns the position that running gear is located for realize running gear's walking orbit planning. And according to the stored submarine geomorphology map, transmitting the path planning information to a supporting and controlling platform 6 through a power supply and communication cable 7, and realizing the motion control of the walking device.
The cutting device and the hydraulic impact device are respectively arranged at the front end and the rear end of the walking device. The cutting device comprises a hydraulic motor I1, two supporting arms I3, a cutter disc 2, a hydraulic cylinder I and a transmission shaft 19; one end of support arm I3 with support and control platform 6 articulated, other end fixed mounting have hydraulic motor I1. Two support arm I3 parallel arrangement, the middle part of two support arms I3 passes through tie-beam I4 and connects. Hydraulic motor I1 is connected with transmission shaft 19, and fixed mounting has two cutter dish 2 on the transmission shaft 19, and cutter dish 2 is located between two support arms I3. The connecting beam I4 is hinged with the end part of a hydraulic cylinder body I21 of the hydraulic cylinder I, and the end part of a piston rod I20 of the hydraulic cylinder I is hinged with the supporting and controlling platform 6. The height of the cutter disc 2 from the ground and the control of the feeding amount of ore body cutting can be realized by driving the piston rod I20 of the hydraulic cylinder I to stretch.
The hydraulic impact device comprises two supporting arms II 8, a hydraulic cylinder II 10 and a hydraulic impactor 13; one end of the supporting arm II 8 is hinged with the supporting and control platform 6 of the walking device. Two II 8 parallel arrangement of support arm, the middle part of support arm II is through two tie- beam II 9, 14 fixed connection. The connecting beam II 14 is hinged with the end part of a piston rod III 22 of the hydraulic cylinder III, and the end part of a hydraulic cylinder body III 15 of the hydraulic cylinder III is hinged with the supporting and controlling platform 6 of the walking device. Connecting beam III 12 passes through the bearing and installs the other end at support arm II 8, and connecting beam III 12 can rotate, and connecting beam III 12 is on a parallel with the transmission shaft setting. The end part of the connecting beam II 9 and the hydraulic cylinder body II 10 of the hydraulic cylinder II are hinged, and the end part of the piston rod II 11 of the hydraulic cylinder II is hinged with the connecting beam III 12. The three hydraulic impactors 13 are fixedly arranged on the connecting beam III 12, and one hydraulic impactor 13 is arranged between the planes where the two adjacent cutting cutter discs 2 are located. The hydraulic impactor 13 is arranged perpendicular to the connecting beam iii 12. The ground clearance of the hydraulic impactor 13 can be realized by controlling the telescopic length of the piston rod III 22, then the included angle between the impact drill rod 16 of the hydraulic impactor 13 and the ground can be adjusted by controlling the telescopic length of the piston rod II 11, the impact angle of the impact drill rod 16 on an ore body is also changed, and generally, the effect is better when the impact drill rod 16 vertically acts on the rock ore body. The end of the impact drill rod 16 is in a blade shape or a cone tip shape.
As shown in figure 4, when the cutting and impacting device stops cutting and impacting the ore body and is in a walking state, the cutting disc 2 and the impacting drill rod 16 are lifted by controlling the telescopic lengths of the piston rod I20 of the hydraulic cylinder I and the piston rod III 22 of the hydraulic cylinder III, the height from the ground is increased, and the walking device is convenient to interfere with other complex seabed objects in the walking process.
Claims (7)
1. The utility model provides a cutting and broken rock combined seabed ore body crushing equipment of impact which characterized by: the device comprises a cutting device, a hydraulic impact device, a walking device and a submarine repeater; the cutting device and the hydraulic impact device are respectively arranged at the front end and the rear end of the walking device;
the cutting device comprises a plurality of supporting arms I, a hydraulic motor I, a cutting cutter disc, a hydraulic cylinder I and a transmission shaft; one end of each supporting arm I is hinged with the walking device, the other end of each supporting arm I is fixedly provided with a hydraulic motor I, the middle parts of the supporting arms I are connected through a connecting beam I, and the supporting arms I are arranged in parallel; the hydraulic motor I is connected with a transmission shaft, and a plurality of cutter discs are fixedly arranged on the transmission shaft; the connecting beam I is hinged with one end of the hydraulic cylinder I, and the other end of the hydraulic cylinder I is hinged with the traveling device;
the hydraulic impact device comprises a plurality of supporting arms II, a hydraulic cylinder II and a hydraulic impactor; one end of the supporting arm II is hinged with the walking device; the support arms II are arranged in parallel, and the middle parts of the support arms II are fixedly connected through a plurality of connecting beams II; one of the connecting beams II is hinged with one end of a hydraulic cylinder III, and the other end of the hydraulic cylinder III is hinged with the traveling device; the connecting beam III is arranged at the other end of the supporting arm II through a bearing and can rotate, and the connecting beam III is arranged in parallel to the transmission shaft; one of the connecting beams II is hinged with one end of the hydraulic cylinder II, and the other end of the hydraulic cylinder II is hinged with the connecting beam III; the hydraulic impactors are fixedly arranged on the connecting beam III, the hydraulic impactors are perpendicular to the connecting beam III, and the hydraulic impactors are positioned between planes where the two cutting cutterheads on the outermost side are positioned;
the walking device is connected with the submarine repeater through a power supply and communication cable, the submarine repeater is provided with a cable supply winch, and the power supply and communication cable is wound on the cable supply winch.
2. The combined cutting and percussive rock breaking subsea ore body breaking equipment according to claim 1, characterized by: the walking device comprises a supporting and controlling platform, a frame chassis and a crawler belt, wherein the supporting and controlling platform can be pivotally arranged on the frame chassis, a driving wheel and a driven wheel are respectively arranged at two sides of the frame chassis, the crawler belt is wrapped on the driving wheel and the driven wheel at the same side, the driving wheel is connected with a hydraulic motor II, and the hydraulic motor II is arranged on the frame chassis; support arm I, support arm II, pneumatic cylinder I, pneumatic cylinder III articulate on supporting and control platform.
3. The combined cutting and percussive rock breaking subsea ore body breaking equipment according to claim 1, characterized by: the supporting and controlling platform comprises a supporting rack, a hydraulic pump station and a hydraulic loop control system, wherein the supporting rack is pivotably arranged on the frame chassis, and the hydraulic pump station and the hydraulic loop control system are both arranged on the supporting rack; the hydraulic pump station is connected with a hydraulic motor I, a hydraulic motor II, a hydraulic cylinder I, a hydraulic cylinder II, a hydraulic cylinder III and a hydraulic impactor through a hydraulic loop control system; and the hydraulic pump station and the hydraulic loop control system are connected with a power supply and communication cable.
4. The combined cutting and percussive rock breaking subsea ore body breaking equipment according to claim 1, characterized by: the cutting device comprises two supporting arms I, wherein two cutting cutter discs are fixedly arranged on a transmission shaft; the tail end of an impact drill rod of the hydraulic impactor is in a blade shape or a cone-point shape.
5. The combined cutting and percussive rock breaking subsea ore body breaking equipment according to claim 4, characterized in that: the hydraulic impact device comprises two supporting arms II, and a hydraulic impact device is arranged between planes where two adjacent cutting cutter discs are located.
6. The combined cutting and percussive rock breaking subsea ore body breaking equipment according to claim 1, characterized by: the walking device is provided with a sonar emitter, the submarine repeater is provided with a sonar receiver and a control system, and the sonar receiver is connected with the control system.
7. The combined cutting and percussive rock breaking subsea ore body breaking equipment according to claim 1, characterized by: and a plurality of floating balls are arranged on a power supply and communication cable which is connected with the walking device and the submarine repeater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011612046.0A CN112502713A (en) | 2020-12-31 | 2020-12-31 | Cutting and rock-breaking combined seabed ore body crushing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011612046.0A CN112502713A (en) | 2020-12-31 | 2020-12-31 | Cutting and rock-breaking combined seabed ore body crushing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112502713A true CN112502713A (en) | 2021-03-16 |
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ID=74952293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011612046.0A Pending CN112502713A (en) | 2020-12-31 | 2020-12-31 | Cutting and rock-breaking combined seabed ore body crushing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112502713A (en) |
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2020
- 2020-12-31 CN CN202011612046.0A patent/CN112502713A/en active Pending
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