Underwater multi-stage cleaning and transporting integrated treatment system for deep sea polymetallic nodules

Abstract

The invention relates to the technical field of underwater multi-stage cleaning and transporting integrated treatment systems for deep-sea polymetallic nodules, provides an underwater multi-stage cleaning and transporting integrated treatment system for deep-sea polymetallic nodules, and solves the problem that in the prior art, the loadable capacity of the polymetallic nodules is affected due to the fact that split type multi-stage equipment occupies too large space. The technical problems that in the prior art, due to the fact that a ship needs to be cleaned, uniform treatment needs to be conducted on the ship due to the limitation of the treatment process, blockage is likely to be caused, invalid crushing treatment can occur, and the treatment efficiency is affected are solved, and the device comprises a machine body, a conveying device and a stock bin. The machine body is internally provided with a flushing area, a scrubbing area and a sewage area which are communicated with one another; the sewage area is located below the flushing area and the scrubbing area; a conveying belt used for conveying materials to the scrubbing area to be cleaned is arranged in the sewage area.

Description

Technical Field

[0001] The present invention relates to the technical field of underwater multi-stage removal of deep-sea polymetallic nodules, and in particular to an integrated underwater multi-stage removal and treatment system for deep-sea polymetallic nodules. Background Art

[0002] The collection of deep-sea polymetallic nodules is one of the important methods of deep-sea mineral exploitation. After collection, the polymetallic nodules need to be transported to the cabin of a ship on the sea surface. However, when polymetallic nodules are collected from mud and sand, they usually attach a large amount of mud and sand and need to be processed.

[0003] Currently, the commonly used method for processing collected polymetallic nodules is a split-processing method. This involves hydraulically lifting the nodules (i.e., suction through a pipeline under negative pressure) and then aspirating them onto a mining vessel. The nodules are then cleaned by cleaning equipment onboard the mining vessel and then crushed to reduce space usage and increase the amount of polymetallic nodules that can be accommodated in the vessel's hold. While this method effectively processes collected polymetallic nodules, the high sediment content of newly collected nodules, which must be sucked through a pipeline, can easily clog the pipeline and affect transport. Furthermore, the subsequent equipment is located separately on the vessel, occupying a large amount of space and reducing the load capacity. Furthermore, the crushing of both large and small nodules results in ineffective crushing of small nodules, affecting the efficiency of polymetallic nodule processing.

[0004] Therefore, the existing method of using a split-type method to process polymetallic nodules has a large space occupation by the split-type multi-stage equipment, which affects the loading capacity of polymetallic nodules. In addition, due to the limitation of the processing flow, unified processing is required on the ship, which is prone to blockage and ineffective crushing, affecting the processing efficiency. Summary of the Invention

[0005] One of the purposes of the present invention is to propose an underwater multi-stage integrated cleaning and treatment system for deep-sea polymetallic nodules, so as to solve the technical problems in the prior art that the split multi-stage equipment occupies too much space, affecting the loading capacity of polymetallic nodules, and is limited by the treatment process, resulting in the need for unified treatment on the ship, which is prone to blockage and ineffective crushing, thus affecting the efficiency of treatment.

[0006] The technical solutions of the present invention are as follows: An underwater multi-stage integrated cleaning and treatment system for deep-sea polymetallic nodules includes a body, a conveyor device, and a silo. The body is provided with a flushing area, a scrubbing area, and a sewage area that are interconnected. The sewage area is located below the flushing and scrubbing area. A conveyor belt is provided in the sewage area for transporting materials to the scrubbing area for cleaning. The body is further provided with a crushing zone, which is connected to the scrubbing zone via an inclined channel. A gathering zone is provided at the bottom of the inclined channel, the top of the gathering zone is connected to the inclined channel, and the side of the gathering zone is connected to the crushing zone. A separation plate is provided in the inclined channel, and the horizontal height of the separation plate near the scrubbing area is higher than the horizontal height of the separation plate near the crushing area, and the leakage gap of the separation plate increases from top to bottom, so as to directly leak small materials into the gathering area and guide large materials to the crushing area for crushing, and finally the crushed small materials fall into the gathering area; The horizontal height of the conveying device is greater than that of the silo, the machine body is located between the conveying device and the silo, the feed port of the machine body is connected to the conveying device and the flushing area, and the discharge port of the machine body is connected to the silo and the bottom of the collection area.

[0007] Furthermore, the sewage area includes a filter area at its bottom, and the lower end of the filter area is connected to the aggregate area for filtering the cleaned muddy water and discharging it into the aggregate area.

[0008] Furthermore, the machine body is provided with a cleaning box, the flushing area and the scrubbing area are located above the inside of the cleaning box, and the sewage area is located below the inside of the cleaning box; A flushing assembly is provided, the flushing assembly comprising a first flushing head and a second flushing head, wherein the first flushing head and the second flushing head are respectively arranged above the inside of the flushing area and the scrubbing area; The conveying section of the conveyor belt is exposed to the bottom of the inner side of the flushing area and the brushing area, and the brushing part of the brushing area is provided with a roller brush assembly.

[0009] Furthermore, the roller brush assembly includes a bracket and at least two brush rollers rotatably mounted on the bracket, a main shaft is mounted on one side of the bracket, one end of the main shaft and the shaft end of the brush roller are driven by a gear, and the other end of the main shaft is rotatably mounted on the side wall of the cleaning box; The main shaft and the bracket rotate independently, and the main shaft and the bracket have the same rotation direction and different rotation speeds, or the main shaft and the bracket have opposite rotation directions and the same rotation speed, or the main shaft and the bracket have opposite rotation directions and different rotation speeds, so that the bracket rotates the two rotating brush rollers in the brushing area to brush the materials on the conveyor belt.

[0010] Furthermore, the feed inlet of the cleaning box is connected to the feed inlet of the machine body, the discharge port of the cleaning box is located at the tail section of the scrubbing area, and the inclined channel includes a trough plate and is located at the discharge port of the cleaning box; An empty area is formed at the bottom of one side of the trough plate away from the feed port of the cleaning box. The separation leakage plate is installed on the side wall of the trough plate located in the empty area and extends obliquely downward to cover the empty area.

[0011] Furthermore, the separation leak plate includes a plurality of rods, each of the rods is mounted on the trough plate, and the gap between two adjacent rods gradually increases from top to bottom.

[0012] Furthermore, a funnel is provided in the machine body, the collecting area is located inside the funnel, and the bottom discharge port of the funnel is connected to the discharge port of the machine body. An inclined plate is provided at the upper end of the funnel, and the trough plate is provided on the inclined plate. The inclined plate is provided with an opening matching the empty area, and the plurality of rods cover the opening on the inclined plate so as to allow small materials to flow directly into the funnel.

[0013] Furthermore, the machine body is provided with a jaw crushing assembly, the jaw crushing assembly includes a fixed jaw and a movable jaw, and the bottom of the fixed jaw is connected to the side wall of the funnel; The funnel has an opening on one side close to the fixed jaw, and the movable jaw is partially arranged in the opening of the side wall of the funnel; The lower end of the inclined plate is located above the movable jaw and a gap is provided between the lower end of the inclined plate and the upper end of the fixed jaw. The tangent direction of the inclined plate is close to the movable jaw, and the gap between the inclined plate and the fixed jaw and the gap between the fixed jaw and the movable jaw constitute a crushing zone.

[0014] Furthermore, a filter pipe is provided in the body, the upper end of the filter pipe is installed on the bottom of the cleaning box, and the lower end of the filter pipe is installed on the side wall of the funnel to discharge the filtered water into the funnel; The filtration area is composed of a filtration pipeline, and a middle section of the filtration pipeline is provided with a filter for filtering muddy water discharged from the sewage area.

[0015] Furthermore, the filter includes a filter cartridge, a filter screen is provided inside the filter cartridge, and the filter cartridge is located in the middle of the filter pipeline; The side wall of the filter cartridge is provided with a sewage pipe, the filter screen is arranged obliquely in the filter cartridge, and the connection point of the sewage pipe is located above the low position of the filter screen to guide the discharge of mud on the filter screen.

[0016] The beneficial effects of the present invention are: The present invention adopts an integrated structure. The polymetallic nodules are cleaned by dividing the underwater body into a flushing area, a scrubbing area and a sewage area, and the body is divided into a crushing area, an inclined channel and an aggregate area. A separation leak plate is set in the inclined channel to select large nodules for crushing, optimize the multi-stage treatment process of polymetallic nodules, realize integrated cleaning and transportation, save space and reduce ineffective treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 Schematic diagram of the structure of this embodiment; Figure 2 Schematic diagram of the internal structure of the machine body in this embodiment; Figure 3 This is a schematic diagram of the structure of the cleaning box in this embodiment; Figure 4 Schematic diagram of the internal structure of the cleaning box in this embodiment; Figure 5 Schematic diagram of the structure of the roller brush assembly in this embodiment; Figure 6 Schematic diagram of the structure of the filter part in this embodiment; Figure 7 This is a schematic diagram of the working of the jaw crusher assembly in this embodiment.

[0019] In the picture: 1. Machine body; 2. Cleaning box; 3. Separation plate; 4. Jaw crusher assembly; 5. Funnel; 6. Filter pipe; 101. Flushing area; 102. Scrubbing area; 103. Sewage area; 104. Crushing area; 105. Trough plate; 106. Aggregate area; 107. Filtration area; 21. Flushing assembly; 22. Conveyor belt; 23. Roller brush assembly; 31. Rod; 41. Fixed jaw; 42. Movable jaw; 51. Inclined plate; 61. Filter; 211, first flushing head; 212, second flushing head; 231, bracket; 232, main shaft; 233, brush roller; 241, empty area; 611, filter cartridge; 612, filter screen; 613, drain pipe; A. Long axis No. 1; B. Long axis No. 2. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] like Figure 1 、 4, 5, the embodiment provides a deep-sea polymetallic nodule underwater multi-stage cleaning and transporting integrated processing system, mainly comprising a body 1, the body 1 has flushing zone 101, brushing zone 102 and sewage zone 103 that are communicated with each other. Wherein, the sewage zone 103 is located below the flushing zone 101 and the brushing zone 102, and a conveying belt 22 is arranged in the sewage zone 103, the conveying section of the conveying belt 22 extends from the bottom of the flushing zone 101 to the bottom of the brushing zone 102 (exposed here), for cleaning the transported materials.

[0022] The body 1 is also provided with a crushing zone 104, and the crushing zone 104 is communicated with the brushing zone 102 through an inclined channel, and a material collecting zone 106 is arranged at the bottom of the inclined channel, the top of the material collecting zone 106 is communicated with the inclined channel, and the side of the material collecting zone 106 is communicated with the crushing zone 104.

[0023] Wherein, the embodiment also provides a separation sieve plate 3 in the inclined channel, and the height of the end of the separation sieve plate 3 close to the brushing zone 102 is higher than the height of the end of the separation sieve plate 3 close to the crushing zone 104, and the gap of the separation sieve plate 3 increases from top to bottom, for directly leaking small materials to the material collecting zone 106, and guiding large materials to the crushing zone 104 to be crushed into small materials and then falling into the material collecting zone 106.

[0024] The body 1 is arranged between the conveying device at a high position and the bin at a low position, and the feeding port of the body 1 is communicated with the conveying device and the flushing zone 101, and the discharging port of the body 1 is communicated with the bin and the bottom of the material collecting zone 106.

[0025] Wherein, the above conveying device is a conventional water-washed material conveying equipment for transporting the polymetallic nodules to the feeding port of the body 1, so that the polymetallic nodules fall into the flushing zone 101 from the feeding port of the body 1. The bin is used for collecting the processed polymetallic nodules, and the bin is connected with the discharging port of the body 1 through a conveying pipeline, and the polymetallic nodules are conveyed to the bin for storage after being processed.

[0026] The embodiment mainly provides the flushing zone 101, the brushing zone 102 and the sewage zone 103 in the body 1 to form a cleaning area for the polymetallic nodules, the flushing zone 101 and the brushing zone 102 are connected and located above the sewage zone 103, and the polymetallic nodules are continuously cleaned and conveyed through the conveying belt 22. The inclined channel and the separation sieve plate 3 can guide the large-particle polymetallic nodules into the crushing zone 104 for crushing, and the small-particle polymetallic nodules are directly leaked into the material collecting zone 106, mixed with the small-particle polymetallic nodules after the crushing of the large-particle polymetallic nodules, to realize the multi-stage cleaning and transporting integrated processing of the polymetallic nodules.

[0027] Compared with the existing split type polymetallic nodule processing system, the embodiment adopts an integrated structure, divides the flushing area 101, the brushing area 102 and the sewage area 103 in the machine body 1 to clean the polymetallic nodules, divides the crushing area 104, the inclined channel and the material collecting area 106 in the machine body 1, and sets the separation leakage plate 3 in the inclined channel to crush the large particle polymetallic nodules, optimize the multi-stage processing flow of the polymetallic nodules, realize the integrated processing of cleaning, crushing and transfer, effectively save the occupied space of the system, and reduce the invalid crushing processing.

[0028] Of course, the large particle polymetallic nodules after crushing and the small particle polymetallic nodules are all discharged to the bunker after entering the material collecting area 106. Since the polymetallic nodules in the bunker usually need to be transported with water (a large amount of water is needed to transfer from the bunker to the water surface of the ship). Therefore, as shown in Figure 1 、 3 , a filter area 107 is arranged at the bottom of the sewage area 103, and the lower end of the filter area 107 is communicated with the material collecting area 106, which is used to filter the cleaned sewage and discharge it into the material collecting area 106. By filtering the sewage produced by flushing, the water is reused, avoiding the need for secondary water supply.

[0029] In addition, as shown in Figure 2-Figure 5 , the embodiment further sets a cleaning box 2 in the machine body 1, and the flushing area 101 and the brushing area 102 are located above the inside of the cleaning box 2, and the sewage area 103 is located below the inside of the cleaning box 2. A flushing assembly 21 is arranged on the top wall of the cleaning box 2. Specifically, the flushing assembly 21 includes a first flushing head 211 and a second flushing head 212, and the first flushing head 211 and the second flushing head 212 are arranged above the inside of the flushing area 101 and the brushing area 102, respectively.

[0030] In the embodiment, the cleaning box 2 is used as the flushing area 101, the brushing area 102 and the sewage area 103 of the machine body 1, and the first flushing head 211 and the second flushing head 212 are arranged on the top of the cleaning box 2. When the polymetallic nodules are sent into the flushing area 101 inside the cleaning box 2, the first flushing head 211 continuously flushes the polymetallic nodules falling on the conveying belt 22 to flush the mud and sand adhered thereto.

[0031] The embodiment sets a rolling brush assembly 23 in the machine body 1, and the brushing part of the rolling brush assembly 23 is arranged in the brushing area 102. When the polymetallic nodules are transported to the brushing area 102 by the conveying belt 22, the second flushing head 212 sprays downward on the rolling brush assembly 23, and the rolling brush assembly 23 brushes the polymetallic nodules on the conveying belt 22 to clean the mud and sand remaining on the polymetallic nodules more deeply. The mud and sand sewage flushed by the flushing area 101 and the brushing area 102 all fall into the sewage area 103 at the bottom of the cleaning box 2 from the conveying belt 22.

[0032] Among them, the flushing area 101 and the brushing area 102 of the cleaning box 2 are cylindrical structures, and the conveying section of the conveyor belt 22 is close to the bottom opening of the cylindrical structure. The gap between them is larger than the polymetallic nodules, but it can allow mud and water to leak from the side gap to the bottom of the cleaning box 2.

[0033] In the above embodiment, the roller brush assembly 23 needs to scrub the polymetallic nodules on the conveyor belt 22. During the scrubbing process, mud and sand are easily adhered to the roller brush assembly 23. Therefore, in order to ensure the scrubbing reliability of the roller brush assembly 23, the following preferred embodiment is provided.

[0034] like Figure 4 、 Figure 5 As shown, the roller brush assembly 23 includes a bracket 231 , which is rotatably mounted on the side wall of the cleaning box 2 and placed in the brushing area 102 , and two brush rollers 233 are rotatably mounted on the bracket 231 .

[0035] A main shaft 232 is installed on one side of the bracket 231 , one end of the main shaft 232 is connected to the shaft ends of the two brush rollers 233 through gear transmission, and the other end of the main shaft 232 is rotatably installed on the side wall of the cleaning box 2 .

[0036] Among them, the main shaft 232 and the bracket 231 rotate independently, and the rotation mode of the main shaft 232 and the bracket 231 can be selected to have the same rotation direction but different rotation speeds, or the same rotation direction and opposite rotation speeds, or opposite rotation directions and different rotation speeds, so as to make the bracket 231 rotate two rotating brush rollers 233 in the brushing area 102 to brush the materials on the conveyor belt 22.

[0037] In this embodiment, the roller brush assembly 23 is driven by a main shaft 232 and a bracket 231. The rotation of the bracket 231 can rotate the two brush rollers 233, so that the two brush rollers 233 can take turns brushing the polymetallic nodules and take turns approaching the second flushing head 212 for flushing, thereby avoiding long-term adhesion of mud and sand to the brush rollers 233 and affecting their brushing effect.

[0038] The rotation of the main shaft 232 can drive the two brush rollers 233 to rotate independently through the gear transmission assembly. The rotation speed of the main shaft 232 is different from the rotation speed of the bracket 231, so that the bracket 231 rotates slowly and the brush roller 233 rotates quickly, thereby improving the brushing effect. When the main shaft 232 and the bracket 231 rotate in opposite directions, the main shaft 232 can be used to rotate the brush roller 233 quickly at a lower speed.

[0039] In the above process, the rotation direction of the main shaft 232 is based on the discharge direction of the cleaning box 2, that is, the direction of the inclined channel, and the main shaft 232 can drive the brush roller 233 through the gear transmission assembly to sweep the polymetallic nodules on the conveyor belt 22 out to the inclined channel.

[0040] Of course, the number of brush rollers 233 is at least two, which rotate alternately to brush and self-clean. A plurality of brush rollers 233 can also be arranged on the support 231 along the axis of the main shaft 232. The brush rollers 233 sweep the multi-metallic nubbins out of the discharge port of the washing tank 2 and onto the separation tray 3 of the inclined channel, based on which the following further embodiment is provided.

[0041] As shown in Figure 2-Figure 4 , the feed port of the washing tank 2 is connected to the feed port of the machine body 1, and the discharge port of the washing tank 2 is located at the tail section of the brushing zone 102 and is provided with a downwardly inclined chute plate 105 to form an inclined channel. The bottom of the side of the chute plate 105 away from the feed port of the washing tank 2 forms an empty area 241, and the separation tray 3 is installed on the side wall of the chute plate 105 at the empty area 241 and extends downwardly and obliquely to cover the empty area 241.

[0042] In this embodiment, the chute plate 105 prevents the multi-metallic particles from escaping from the separation tray 3 from the side, and the empty area 241 at the bottom of the chute plate 105 enables the multi-metallic nubbins leaked out of the separation tray 3 to directly fall into the collection zone 106.

[0043] As shown in Figure 4 , Figure 5 , the separation tray 3 is composed of a plurality of rod members 31, which are installed on the chute plate 105, and the gap between adjacent two rod members 31 gradually increases from top to bottom. The maximum gap between adjacent two rod members 31 is 6 cm, which can be used to ensure that small multi-metallic nubbins do not enter the crushing zone 104 but directly pass through the separation tray 3 into the collection zone 106, while large multi-metallic nubbins enter the crushing zone 104 to be crushed, effectively reducing unnecessary crushing.

[0044] Based on the above embodiment, the following further embodiment of the collection zone 106 is provided.

[0045] As shown in Figure 2-Figure 4 , a hopper 5 is arranged in the machine body 1, the interior of the hopper 5 is the collection zone 106, and the bottom discharge port of the hopper 5 is connected to the discharge port of the machine body 1. The upper end of the hopper 5 is provided with an inclined plate 51, and the chute plate 105 is arranged on the inclined plate 51. The inclined plate 51 is provided with openings matching the empty areas 241, and each rod member 31 covers the openings on the inclined plate 51 to directly allow small materials to fall into the hopper 5.

[0046] In this embodiment, the collection zone 106 is composed of the hopper 5, and the inclined plate 51 on the hopper 5 can support the rod members 31 and form openings with the empty areas 241 to enable small multi-metallic nubbins to fall into the hopper 5.

[0047] Based on the above embodiment, the following further embodiment of the crushing zone 104 is provided.

[0048] like Figure 2-Figure 4 As shown, a jaw crushing assembly is disposed within the machine body 1. The jaw crushing assembly includes a fixed jaw 41 and a movable jaw 42. The bottom of the fixed jaw 41 is connected to the side wall of the funnel 5. An opening is provided on one side of the funnel 5 near the fixed jaw 41, and the movable jaw 42 is partially disposed within the side wall opening of the funnel 5.

[0049] A gap is formed between the lower end of the inclined plate 51 and the upper end of the fixed jaw 41 , and the gap between the inclined plate 51 and the fixed jaw 41 and the gap between the fixed jaw 41 and the movable jaw 42 constitute a crushing zone 104 .

[0050] The lower end of the inclined plate 51 is located above the movable jaw 42 , and the inclined plate 51 is tangentially close to the movable jaw 42 .

[0051] In this embodiment, large-particle polymetallic nodules that roll down from between the rods 31 enter between the fixed jaw 41 and the movable jaw 42 from above, are crushed by the movable jaw 42 over the fixed jaw 41, and automatically slide into the funnel 5 when the fixed jaw 41 and the movable jaw 42 separate, and are collected with small-particle polymetallic nodules.

[0052] Among them, the movable jaw 42 adopts a roller structure, an axis drive deviated from the axis is set inside the roller, and an elliptical cylinder is set on the axis, and the outer wall of the elliptical cylinder and the inner wall of the roller are both provided with tooth grooves. When the shaft rotates the elliptical cylinder, the long end of the elliptical cylinder will push up the roller and then squeeze toward the fixed jaw 41, and move downward along the arc surface of the fixed jaw 41 to achieve the effect of extrusion and grinding.

[0053] When the long end moves downward beyond the axis plane, the other long end moves upward to push the roller upward again, and then moves downward in an arc. The shaft continues to rotate to realize the elliptical cylinder repeatedly pushing the roller to squeeze and grind large particles of polymetallic nodules one by one. Since the two long ends of the elliptical cylinder can drive the roller to perform a complete crushing action, the crushing action frequency of the entire jaw crushing assembly is higher and the processing efficiency is higher.

[0054] Specifically, if Figure 7 As shown, the movable jaw 42 is assembled by an elliptical gear column and an internal gear column. The internal gear column is inserted and supported by the elliptical gear column, and the central axis of the elliptical gear column is rotatably mounted on the fixed jaw 41. At this time, the internal gear column is pressed on the elliptical gear column under the action of gravity, and the rotation of the elliptical gear column drives the internal gear column to perform a rotational undulating periodic motion.

[0055] When the long axis of the oval gear column representing the clock rotates, when the No. 1 long axis of the oval gear column rotates downward from 0 o'clock to 3 o'clock, the No. 1 long axis of the oval gear column pushes the inner gear column and the fixed jaw 41 closer to each other, thereby crushing the large nodules; When the No. 1 long axis of the elliptical gear column rotates downward from 3 o'clock to 6 o'clock, the weight of the inner gear column is placed on the short axis side of the elliptical gear column, and the entering nodules enter the crushing area 104 between the fixed jaw 41 and the movable jaw 42; When the No. 1 long axis of the elliptical gear column rotates upward from 6 o'clock to 9 o'clock, the No. 2 long axis of the elliptical gear column pushes the inner gear column to be close to the fixed jaw 41, and the entering nodules are crushed; When the No. 1 long axis of the elliptical gear column rotates upward from 9 o'clock to 12 o'clock (the No. 1 long axis rotates from 0 o'clock, and rotates a circle to return to the original point, which is 12 o'clock), the nodules continue to enter the crushing mechanism, and therefore, the movable jaw 42 is used for the fluctuation motion with a semi-circle as a period, crushing in the path from 0 o'clock to 3 o'clock, and placing the nodules into the crushing area 104 in the path from 3 o'clock to 6 o'clock.

[0056] Based on the above embodiment, a further embodiment for providing the filtering area 107 is provided.

[0057] As shown in Figure 1 , Figure 3 , Figure 4 , the filtering pipeline 6 is arranged in the machine body 1, the upper end of the filtering pipeline is installed on the bottom of the washing tank 2, and the lower end of the filtering pipeline is installed on the side wall of the hopper 5, which is used for discharging the filtered water into the hopper 5. Among them, the filtering pipeline constitutes the filtering area 107, and the middle section of the filtering pipeline is provided with the filter 61, which is used for filtering the mud water discharged from the sewage area 103.

[0058] In this embodiment, the filtering area 107 is constituted by the filtering pipeline, when the washing sewage is generated in the sewage area 103, the sewage of the sewage area 103 can be directly discharged into the filtering pipeline and filtered by the filter 61, so as to discharge the filtered water into the hopper 5, which is used for ensuring that the multi-metal particles and water can be discharged into the bunker.

[0059] Of course, in order to prevent the filtering pipeline from being blocked after the mud is filtered, an optimization mode is provided.

[0060] As shown in Figure 6 , the filter 61 includes a filter cartridge 611, the inside of the filter cartridge 611 is provided with a filter screen 612, and the filter cartridge 611 is located in the middle of the filtering pipeline. The side wall of the filter cartridge 611 is provided with a blowdown pipe 613, the filter screen 612 is arranged obliquely in the filter cartridge 611, and the connection of the blowdown pipe 613 is located above the low position of the filter screen 612, which is used for guiding the mud on the filter screen 612 to be discharged.

[0061] In the embodiment, the filter 61 is a filter cylinder 611 in a cylindrical structure, which is arranged in the middle of the filter pipeline, so that the sewage can be filtered by the filter screen 612 inside the filter cylinder 611, and the filter screen 612 is arranged obliquely, so that the filtered silt is washed downward by the subsequent water flow to the sewage pipe 613, thereby realizing the partial separation of silt and water, that is, the partial water of the sewage is reused by penetrating the filter screen 612, and the remaining high-concentration sewage is discharged from the sewage pipe 613.

[0062] Based on the above embodiment, the working principle of the system is as follows: The conveying device conveys the polymetallic nodule to the feeding port of the machine body 1, and falls into the cleaning box 2 inside the machine body 1 from the feeding port. In the washing area 101 in the cleaning box 2, the polymetallic nodule is conveyed by the conveying belt 22, and in the conveying process, the first washing head 211 of the washing assembly 21 washes the polymetallic nodule on the conveying belt 22. The washed polymetallic nodule is conveyed to the brushing area 102, and the rolling brush assembly 23 cooperates with the second washing head 212 to brush the polymetallic nodule on the conveying belt 22.

[0063] The brushed polymetallic nodule is swept out of the discharge port of the cleaning box 2 by the rolling brush assembly 23 to the separation sieve plate 3. The small nodule in the polymetallic nodule on the separation sieve plate 3 directly leaks into the hopper 5, and the large nodule slides between the fixed jaw 41 and the movable jaw 42 of the jaw crusher assembly 4 to be crushed into small nodules, and the crushed small nodules are discharged and fall into the hopper 5.

[0064] In the process, the sewage produced by washing and brushing in the cleaning box 2 enters the filter pipeline from the bottom of the cleaning box 2 and is filtered by the filter 61 in the filter pipeline, realizing the partial separation of silt and water, and the filtered water flows downward into the hopper 5 and mixes with the polymetallic nodule to assist in conveying the polymetallic nodule, and the remaining high-concentration sewage is discharged back to the sea from the sewage pipe 613 of the filter 61.

[0065] The embodiment realizes the step-by-step deep cleaning of multi-metal nodules, wherein the first flushing head 211 and the second flushing head 212 of the flushing assembly 21 are arranged above the inside of the flushing area 101 and the brushing area 102 respectively, and the design that the conveying section of the conveying belt 22 is exposed to the bottom of the two areas significantly improves the cleaning efficiency. The separation leakage plate 3 arranged in the system adopts a gradient gap design, the material leakage gaps of which increase from top to bottom in sequence, which can automatically separate the materials according to particle size, so that small particles are directly leaked to the material collecting area 106, and large particles are guided to the crushing area 104 for crushing, thereby effectively reducing the energy consumption of subsequent crushing. The connection design of the inclined channel and the crushing area 104 in combination with the jaw crushing assembly 4 including the fixed jaw 41 and the movable jaw 42 cooperates to crush the large particles into small particles after the large particles enter the crushing area 104, and finally the small particles are dropped into the hopper 5 in the material collecting area 106 together with the small particles screened by the separation leakage plate 3, thereby realizing seamless connection of the crushing and collecting processes. The sewage area 103 is located below the flushing area 101 and the brushing area 102, and the filter area 107 at the bottom of the sewage area 103 filters the cleaned sewage through the filter pipeline and the filter screen 612 and then discharges the filtered sewage to the hopper 5, thereby reducing sewage discharge, and the design of the inclined filter screen 612 and the low-position sewage discharge pipe 613 can effectively prevent the filter holes from being blocked, thereby prolonging the service life of the filter 61. The main shaft 232 and the support 231 of the roller brush assembly 23 adopt a differential or reverse rotation design, the driving brush roller 233 rotates and forms a complex brushing track, and in combination with the continuous conveying of the conveying belt 22, the removal effect of the surface attachments of the materials is further enhanced. The layout of the functional areas in the machine body 1 is compact and reasonable, the flushing, brushing, crushing and filtering areas are arranged in layers, in combination with the vertical connection of the inclined channel and the hopper 5, the land occupation area of the equipment is significantly reduced, and the equipment is more suitable for the operation requirements of narrow underwater space. The gaps of the rod members 31 of the separation leakage plate 3 gradually increase from top to bottom, thereby avoiding the problem of small particle accumulation, and the inclined filter screen 612 and the sewage discharge pipe 613 in the filter cartridge 611 are designed to discharge accumulated mud regularly, thereby ensuring that the system can operate continuously for a long time. In addition, the design of the height difference between the conveying device, the conveying belt 22 and the material bin, and the communication structure of the inlet and the outlet of the machine body 1 realize the automatic conveying of the whole process from collection, cleaning to crushing and storage, thereby greatly reducing the demand for manual intervention and improving the overall operation efficiency.

[0066] The above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An underwater multi-stage cleaning and integrated treatment system for deep-sea polymetallic nodules, comprising a body (1), a conveying device and a silo, characterized in that: The machine body (1) is provided with a flushing area (101), a scrubbing area (102) and a sewage area (103) which are interconnected. The sewage area (103) is located below the flushing area (101) and the scrubbing area (102). A conveyor belt (22) for conveying materials to the scrubbing area (102) for cleaning is provided in the sewage area (103). A crushing zone (104) is further provided in the machine body (1), the crushing zone (104) and the scrubbing zone (102) are connected via an inclined channel, a collection zone (106) is provided at the bottom of the inclined channel, the top of the collection zone (106) is connected to the inclined channel, and the side of the collection zone (106) is connected to the crushing zone (104); A separation leakage plate (3) is provided in the inclined channel, and the level of the separation leakage plate (3) at one end close to the scrubbing zone (102) is higher than the level of the separation leakage plate (3) at one end close to the crushing zone (104), and the leakage gap of the separation leakage plate (3) increases from top to bottom, so as to directly leak small materials to the gathering zone (106) and guide large materials to the crushing zone (104) for crushing, and finally the crushed small materials fall into the gathering zone (106); The horizontal height of the conveying device is greater than the horizontal height of the silo, the machine body (1) is located between the conveying device and the silo, and the feed port of the machine body (1) is connected to the conveying device and the flushing area (101), and the discharge port of the machine body (1) is connected to the silo and the bottom of the collection area (106).

2. The underwater multi-stage integrated cleaning and treatment system for deep-sea polymetallic nodules according to claim 1 is characterized in that: The sewage area (103) includes a filter area (107) located at its bottom, and the lower end of the filter area (107) is connected to the aggregate area (106) for filtering the cleaned muddy water and discharging it into the aggregate area (106).

3. The underwater multi-stage integrated cleaning and treatment system for deep-sea polymetallic nodules according to claim 2 is characterized in that: The machine body (1) is provided with a cleaning box (2), the flushing area (101) and the scrubbing area (102) are located above the interior of the cleaning box (2), and the sewage area (103) is located below the interior of the cleaning box (2); A flushing assembly (21) is provided, the flushing assembly (21) comprising a first flushing head (211) and a second flushing head (212), wherein the first flushing head (211) and the second flushing head (212) are respectively arranged above the inside of the flushing area (101) and the scrubbing area (102); The conveying section of the conveyor belt (22) is exposed to the bottom of the inner side of the flushing area (101) and the scrubbing area (102), and the scrubbing portion of the scrubbing area (102) is provided with a roller brush assembly (23).

4. The underwater multi-stage integrated cleaning and treatment system for deep-sea polymetallic nodules according to claim 3 is characterized in that: The roller brush assembly (23) comprises a bracket (231) and at least two brush rollers (233) rotatably mounted on the bracket (231); a main shaft (232) is mounted on one side of the bracket (231); one end of the main shaft (232) and the shaft end of the brush roller (233) are driven by gears; the other end of the main shaft (232) is rotatably mounted on the side wall of the cleaning box (2); The main shaft (232) and the bracket (231) rotate independently, and the main shaft (232) and the bracket (231) rotate in the same direction but at different speeds, or the main shaft (232) and the bracket (231) rotate in opposite directions but at the same speed, or the main shaft (232) and the bracket (231) rotate in opposite directions but at different speeds, so that the bracket (231) rotates the two rotating brush rollers (233) in the brushing area (102) to brush the material on the conveyor belt (22).

5. The underwater multi-stage integrated cleaning and treatment system for deep-sea polymetallic nodules according to claim 4 is characterized in that: The inlet of the cleaning box (2) is connected to the inlet of the machine body (1), the outlet of the cleaning box (2) is located at the tail section of the scrubbing area (102), and the inclined channel includes a groove plate (105) and is located at the outlet of the cleaning box; An empty area (241) is formed at the bottom of the trough plate (105) on one side away from the feed port of the cleaning box (2), and the separation leak plate (3) is installed on the side wall of the trough plate (105) located in the empty area (241) and extends obliquely downward to cover the empty area (241).

6. The underwater multi-stage integrated cleaning and treatment system for deep-sea polymetallic nodules according to claim 5 is characterized in that: The separation leak plate (3) comprises a plurality of rods (31), each of the rods (31) is mounted on the trough plate (105), and the gap between two adjacent rods (31) gradually increases from top to bottom.

7. The underwater multi-stage integrated cleaning and treatment system for deep-sea polymetallic nodules according to claim 6 is characterized in that: A funnel (5) is provided in the machine body (1), the collecting area (106) is located inside the funnel (5), and the bottom discharge port of the funnel (5) is connected to the discharge port of the machine body (1), an inclined plate (51) is provided at the upper end of the funnel (5), and the trough plate (105) is provided on the inclined plate (51); The inclined plate (51) is provided with an opening matching the empty area (241), and the plurality of rods (31) all cover the opening on the inclined plate (51) so as to allow small materials to flow directly into the funnel (5).

8. The underwater multi-stage integrated cleaning and treatment system for deep-sea polymetallic nodules according to claim 7 is characterized in that: The machine body (1) is provided with a jaw crushing assembly, the jaw crushing assembly comprising a fixed jaw (41) and a movable jaw (42), the bottom of the fixed jaw (41) being connected to the side wall of the funnel (5); The funnel (5) has an opening on one side close to the fixed jaw (41), and a partial structure of the movable jaw (42) is arranged in the side wall opening of the funnel (5); The lower end of the inclined plate (51) is located above the movable jaw (42) and a gap is provided between the lower end of the inclined plate (51) and the upper end of the fixed jaw (41). The tangent direction of the inclined plate (51) is close to the movable jaw (42), and the gap between the inclined plate (51) and the fixed jaw (41) and the gap between the fixed jaw (41) and the movable jaw (42) constitute a crushing zone (104).

9. The underwater multi-stage integrated cleaning and treatment system for deep-sea polymetallic nodules according to claim 8 is characterized in that: A filter pipe (6) is provided in the machine body (1), the upper end of the filter pipe (6) is mounted on the bottom of the cleaning box (2), and the lower end of the filter pipe (6) is mounted on the side wall of the funnel (5) for discharging filtered water into the funnel (5); The filtration area (107) is composed of a filtration pipeline (6), and a middle section of the filtration pipeline (6) is provided with a filter (61) for filtering muddy water discharged from the sewage area (103).

10. The underwater multi-stage integrated cleaning and treatment system for deep-sea polymetallic nodules according to claim 9, characterized in that: The filter (61) comprises a filter cartridge (611), a filter screen (612) is provided inside the filter cartridge (611), and the filter cartridge (611) is located in the middle of the filter pipeline (6); A sewage pipe (613) is provided on the side wall of the filter cartridge (611), the filter screen (612) is arranged obliquely in the filter cartridge (611), and the connection point of the sewage pipe (613) is located above the lower position of the filter screen (612) to guide the discharge of mud on the filter screen (612).

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