Drum-type ore washing device for laterite nickel ore

Abstract

A drum-type ore washing device for a laterite nickel ore. The drum ore washing device comprises: a plurality of ore washing drums (1), a slurry intake structure (2), a plurality of driving mechanisms (3) and a water injection mechanism (4), wherein an ore washing cavity is formed in each ore washing drum (1); the slurry intake structure (2) is provided with a main conveying channel (21) and a plurality of material conveying channels (22), wherein a consistency measurement module (23) for measuring the consistency of slurry is provided in the main conveying channel (21); the plurality of driving mechanisms (3) are respectively connected to the plurality of ore washing drums (1); and the water injection mechanism (4) is arranged in each washing cylinder (1). The drum ore washing device for a laterite nickel ore can convey and wash, on the basis of the consistency condition of raw materials, the raw materials in a targeted manner; for a slurry with a large consistency, due to the high mud content, the slurry needs to be fed into a first-stage ore washing drum; and for a slurry with a relatively small consistency, the slurry is conveyed into a subsequent ore washing drum on the basis of a consistency setting condition of the slurry, thus reducing the number of ore washing steps relatively, ensuring that ores can be fully cleaned, and facilitating an increase in the ore washing efficiency.

Description

A cylindrical ore washing device for laterite nickel ore Technical Field

[0001] The present invention relates to the technical field of ore washing, in particular to a cylindrical ore washing device for laterite nickel ore. Background Art

[0002] Laterite nickel ore is a loose, clay-like aggregate containing oxides of elements such as nickel, iron, magnesium, cobalt, silicon, and aluminum, formed through long-term geological processes in nickel-bearing olivine bedrock. Its primary form is soil. After mining, laterite ore requires beneficiation for subsequent smelting, such as wet acid leaching. Laterite beneficiation typically includes washing, chromite selection (chromite removal), and concentration. The purpose of washing is to separate the coarse-grained ore from the laterite ore.

[0003] Publication No. CN214347157U provides a drum ore washing machine, which mainly includes a drum and a sled-type base. When in use, as long as the ore material is provided into the drum through the loading hopper, an electric motor and a reducer are fixedly installed on the upper middle part of the sled-type base. The motor is coaxially connected to the reducer. A rotating shaft is provided on the left side of the reducer. The rotating shaft is coaxially fixedly connected to a rubber supporting wheel. A track is provided on the outside of the drum, which is meshed with the rubber supporting wheel through the track on the outside of the drum to drive the drum to rotate to clean the ore inside the drum. However, in the existing drum ore washing machine, the ore is directly fed in through the feed end during the ore washing process, and the drum is driven to rotate by the driving device to clean the ore. However, due to the different mud content in each part of the ore raw material, the viscosity of the raw material is different. The existing drum ore washing device cannot clean ores of different viscosities, so that a large amount of ores are mixed and piled together during washing, making it difficult to carry out targeted ore washing and the ore washing efficiency is low.

[0004] Summary of the Invention

[0005] The purpose of the present invention is to overcome the above technical deficiencies and propose a cylindrical ore washing device for laterite nickel ore to solve the technical problems of difficulty in targeted ore washing and low ore washing efficiency in the prior art.

[0006] In order to achieve the above technical objectives, the technical solution of the present invention provides a cylindrical ore washing device for laterite nickel ore, comprising: a plurality of ore washing cylinders, a slurry inlet structure, a plurality of driving mechanisms and a water injection mechanism, wherein a washing cavity is formed inside each of the ore washing cylinders, the plurality of the ore washing cavities are sequentially connected, and the plurality of the ore washing cylinders form an inclination angle with the horizontal plane, and the inclination angle of the ore washing cylinder increases sequentially along the material conveying direction; the slurry inlet structure has a main conveying channel and a plurality of material conveying channels, the main conveying channel is connected to the plurality of the material conveying channels, and the plurality of the The material conveying channels are respectively connected to several washing cylinders. A viscosity detection module for detecting the viscosity of the ore pulp is provided in the main conveying channel to control the ore pulp to be conveyed to the corresponding washing cylinder through the corresponding material conveying channel according to the detected viscosity value, wherein the viscosity value of the ore pulp in the washing cylinder closer to the first level is greater; several driving mechanisms are respectively connected to several washing cylinders to drive the washing cylinders to rotate respectively; the water injection mechanism is arranged in each washing cylinder to provide water source for washing mineral materials into the washing cylinder.

[0007] In some embodiments, each of the washing cylinders is spaced apart, and a guide pipe is provided at the intervals to guide the ore from one of the washing cylinders to the other. The number of the driving mechanisms is the same as the number of the washing cylinders, and the driving mechanism includes an outer gear ring, a gear, a transmission member, and a drive motor. The outer gear ring is embedded in the middle of the outer side of the washing cylinder, and the outer side of the outer gear ring is provided with a tooth groove. The gear is provided on one side of the outer gear ring and is meshed and connected to the tooth groove of the outer gear ring for rotation. The drive motor is connected to the central axis of the gear through the transmission member to drive the gear to rotate through the transmission member, thereby driving the outer gear ring and the washing cylinder to rotate. Each of the two ends of the washing cylinder is also provided with a support structure, the support structure including a support ring and two support wheels. The support rings are respectively embedded in the outer sides of the two ends of the washing cylinder, and the two support wheels are respectively provided on both sides of the bottom of the washing cylinder, and the support wheels are supported below the support ring and are rotatably connected to the support ring.

[0008] In some embodiments, the interior of the ore washing cylinder is sequentially provided with a first stirring assembly and a second stirring assembly along the material conveying direction. The first stirring assembly and the second stirring assembly respectively include a first stirring plate and a second stirring plate arranged along the circumference of the ore washing cylinder. The first stirring plate and the second stirring plate are both fixedly connected to the ore washing cylinder at one end and extend toward the center position of the ore washing cylinder at the other end and can rotate therewith when the ore washing cylinder is in operation. Each first stirring plate is arranged in a spiral manner. Two groups of second stirring assemblies are provided. The second stirring plates of the two groups of second stirring assemblies are staggered, and the installation position of the second stirring plate is consistent with the length direction of the ore washing cylinder.

[0009] In some embodiments, several of the material conveying channels are provided with opening and closing valves, and the opening and closing valves are electrically connected to the viscosity detection module so that when the material viscosity reaches the set value of the processing consistency of each washing cylinder, the corresponding opening and closing valves are driven to open by the viscosity detection module.

[0010] In some embodiments, the cylindrical ore washing device for laterite nickel ore further comprises a plurality of filtering and cleaning structures, wherein the plurality of filtering and cleaning structures are respectively arranged in the ore washing cylinder after the first stage, and the filtering and cleaning structures all comprise a filtering cylinder, the filtering cylinder being concentrically arranged in the ore washing cylinder and fixedly connected to the ore washing cylinder through a support rod, and being able to rotate with the ore washing cylinder, and the diameters of the plurality of filtering cylinders are sequentially increased and connected in sequence along the material conveying direction, and the water injection mechanism comprises a first cleaning part and a second cleaning part, the first cleaning part being arranged inside the ore washing cylinder of the first stage, and being provided with water to the ore washing cylinder of the first stage The water source is transported inside the ore washing cylinder. The second cleaning component is arranged inside the ore washing cylinder after the first stage and is located in several filter cylinders to transport water to the inside of the several filter cylinders. The water injection mechanism also includes a discharge flushing component. The first cleaning component, the second cleaning component and the discharge flushing component all include several nozzles and water pipes. The water pipes are connected to the water source. Several of the nozzles are evenly arranged along the length direction of the water pipes and are connected to the water pipes. The discharge flushing component is arranged at the discharge end of the ore washing cylinder of the last stage, and one end thereof extends to the interior of the ore washing cylinder to further clean the material.

[0011] Compared with the prior art, the beneficial effects of the present invention include: by arranging a plurality of ore washing cylinders, slurry inlet structures, a plurality of driving mechanisms and water injection mechanisms, the ore washing cavities of the plurality of ore washing cylinders are connected in sequence, and the ore washing cylinders all form an inclination angle with the horizontal plane, and the inclination angle increases in sequence along the material conveying direction, and each ore washing cylinder is configured with a separate material conveying channel, and the viscosity value of the conveyed slurry is detected by the viscosity detection module arranged in the main conveying channel, so that the slurry of the corresponding viscosity is conveyed to the corresponding ore washing cylinder, and the ores of different viscosities can be transported and cleaned in a targeted manner, wherein the closer to the first stage the slurry in the ore washing cylinder is, the greater the viscosity value of the slurry is. In combination with the graded cleaning form, when the viscosity of the raw material is large, it is mainly necessary to remove the slurry containing mud and sand, so the cylinder with a smaller inclination is selected to extend the cleaning time of the raw material in the first stage ore washing cylinder, It is convenient to fully discharge the mud and sand, and then increase the inclination of the cylinder to increase the flow rate of the raw materials in the subsequent cylinders, so as to disperse the accumulated raw materials step by step, which is conducive to cleaning the mud and sand attached to the ore; and the feed can also be controlled according to the viscosity of the raw materials. For slurry with higher viscosity, it has a higher mud content and needs to be fed into the first-level washing cylinder for multiple washings. The slurry with relatively lower viscosity is transported to the subsequent washing cylinders according to the slurry viscosity setting. This relatively reduces the washing steps and ensures that the ore can be fully cleaned, which is conducive to improving the washing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] FIG1 is a schematic diagram of the overall structure of an embodiment of a cylindrical ore washing device for laterite nickel ore provided by the present invention;

[0013] FIG2 is a schematic diagram of the internal structure of a washing cylinder of an embodiment of a cylindrical ore washing device for laterite nickel ore provided by the present invention;

[0014] FIG3 is a schematic cross-sectional view of a driving mechanism of an embodiment of a cylindrical ore washing device for laterite nickel ore provided by the present invention;

[0015] 4 is a schematic cross-sectional view of the support structure and the second stirring plate of an embodiment of a cylindrical ore washing device for laterite nickel ore provided by the present invention;

[0016] FIG5 is a schematic cross-sectional view of the second stirring plate of an embodiment of a cylindrical ore washing device for laterite nickel ore provided by the present invention.

[0017] In the figure: 1. Ore washing cylinder; 11. Inner cylinder; 12. Outer cylinder; 13. Material guide pipe; 14. Support structure; 141. Support ring; 142. Support wheel; 2. Slurry inlet structure; 21. Main conveying channel; 22. Material conveying channel; 23. Viscosity detection module; 24. Opening and closing valve; 3. Driving mechanism; 31. Outer gear ring; 32. Gear; 33. Transmission member; 34. Driving motor; 4. Water injection mechanism; 41. First cleaning member; 42. Second cleaning member; 43. Discharge flushing member; 5. Filter cleaning structure; 51. Filter cylinder; 52. Support rod; 6. First stirring assembly; 61. First stirring plate; 7. Second stirring assembly; 71. Second stirring plate. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] As shown in Figures 1 to 5, the present invention provides a cylindrical ore washing device for laterite nickel ore, comprising: a plurality of ore washing cylinders 1, a slurry inlet structure 2, a plurality of driving mechanisms 3 and a water injection mechanism 4, wherein a washing cavity is formed inside each of the ore washing cylinders 1, and the plurality of ore washing cavities are sequentially connected, and the plurality of ore washing cylinders 1 form an inclination angle with the horizontal plane, and the inclination angle of the ore washing cylinder 1 increases sequentially along the material conveying direction; the slurry inlet structure 2 has a main conveying channel 21 and a plurality of material conveying channels 22, the main conveying channel 21 is connected to the plurality of material conveying channels 22, and the plurality of material conveying channels 22 are connected to the plurality of material conveying channels 22. The delivery channel 22 is respectively connected to several ore washing cylinders 1. The main delivery channel 21 is provided with a viscosity detection module 23 for detecting the viscosity of the ore slurry, so as to control the ore slurry to be delivered to the corresponding ore washing cylinder 1 through the corresponding material delivery channel 22 according to the detected viscosity value, wherein the viscosity value of the ore slurry in the ore washing cylinder 1 closer to the first level is greater; several of the driving mechanisms 3 are respectively connected to several of the ore washing cylinders 1 to drive the ore washing cylinders 1 to rotate respectively; the water injection mechanism 4 is arranged in each of the ore washing cylinders 1 to provide a water source for washing the mineral material into the ore washing cylinder 1.

[0020] In this device, a plurality of washing cylinders 1 are provided, and a plurality of washing cavities are connected in sequence. A water source for washing mineral materials is provided into the washing cylinders 1 through a water injection mechanism 4. The driving mechanism 3 is used to drive each washing cylinder 1 to rotate so as to clean the materials. The washing cylinders 1 all form an inclination angle with the horizontal plane, and the inclination angle increases in sequence along the material conveying direction. In addition, a separate material conveying channel 22 is configured for each washing cylinder 1. The viscosity value of the conveyed slurry is detected by a viscosity detection module 23 provided in the main conveying channel 21, so that the slurry of the corresponding viscosity is conveyed to the corresponding washing cylinder 1, and the ores of different viscosities can be conveyed and cleaned in a targeted manner. Among them, the closer to the first stage, the greater the viscosity value of the slurry in the washing cylinder 1, and the smaller the viscosity of the slurry, the smaller the viscosity of the slurry. Combined with the graded cleaning form, when the viscosity of the raw material is relatively high, the mud content in the raw material is relatively high, so it is mainly necessary to remove the slurry containing mud and sand. Therefore, a cylinder with a smaller inclination is selected to fully separate the mud and sand in the raw material from the ore, and then the inclination of the cylinder is increased to increase the flow rate of the raw material in the subsequent cylinder, so that the accumulated raw material is dispersed step by step, which is conducive to cleaning the mud and sand attached to the ore; and the feed can also be controlled according to the viscosity of the raw material. For slurry with higher viscosity, it has a larger mud content and needs to be fed into the first-level washing cylinder 1 for multiple washings. The slurry with relatively lower viscosity is transported to the subsequent washing cylinder 1 according to the slurry viscosity setting. This relatively reduces the washing steps and ensures that the ore can be fully cleaned, which is conducive to improving the washing efficiency.

[0021] It should be noted that the specific structure of the viscosity detection module 23 for detecting the viscosity of the slurry is not limited. It can directly use a viscosity detector or other equipment that can detect the viscosity. The working principle of the viscosity detector is mainly to calculate the viscosity by measuring the flow rate of the liquid under the application of force.

[0022] In order to realize the transportation of raw materials through the corresponding material conveying channels 22 according to the viscosity of the materials, as shown in Figure 1, in some embodiments, several of the material conveying channels 22 are provided with opening and closing valves 24, and the opening and closing valves 24 are electrically connected to the viscosity detection module 23, so that when the viscosity of the material reaches the set value of the processing viscosity of each washing cylinder 1, the corresponding opening and closing valves 24 are driven to open by the viscosity detection module 23 and the control system, and when one of the opening and closing valves 24 is opened, the other opening and closing valves 24 are all in a closed state. For example, when it is detected that the viscosity value is in the processing range of the first-level washing cylinder 1, the first opening and closing valve 24 is driven to open, and the following two opening and closing valves 24 are closed to ensure that the raw materials are accurately transported to the corresponding washing cylinder 1.

[0023] In order to further improve the cleaning effect of the ore, as shown in Figure 1, in some embodiments, the cylindrical ore washing device for laterite nickel ore also includes a plurality of filtering and cleaning structures 5, and the plurality of filtering and cleaning structures 5 are respectively arranged in the ore washing cylinder 1 after the first stage. The ore after the first stage cleaning contains less mud and sand, which can avoid mud and sand from mixing in the filtering and cleaning structure 5, and the filtering and cleaning structures 5 all include a filtering cylinder 51, which is concentrically arranged in the ore washing cylinder 1 and fixedly connected to the ore washing cylinder 1 through a support rod 52, and can rotate with the ore washing cylinder 1, and the diameters of the plurality of filtering cylinders 51 increase successively along the material conveying direction and are connected successively, so that the ore can be conveyed to the next filtering cylinder 51 in sequence. In order to supply water to the ore washing cylinder 1 and the filtering and cleaning structure 5, the water injection mechanism 4 includes a first cleaning component 41 and a second cleaning component 42. The first cleaning component 41 is arranged inside the ore washing cylinder 1 of the first stage to transport water to the inside of the ore washing cylinder 1 of the first stage. The second cleaning component 42 is arranged inside the ore washing cylinder 1 after the first stage and is located in several filter cylinders 51 to transport water to the inside of the several filter cylinders 51. The ore cleaned by the ore washing cylinder 1 is then transported to the filter cylinder 51. When the filter cylinder 51 rotates with the ore washing cylinder 1, it cooperates with the second cleaning component 42 to spray water into the filter cylinder 51, which can further clean the ore inside the filter cylinder 51. The cleaned water is directly discharged into the ore washing cylinder 1, making full use of water resources.

[0024] Furthermore, in some embodiments, the water injection mechanism 4 also includes a discharge flushing member 43, which is arranged at the discharge end of the ore washing cylinder 1 at the last stage, and one end of which extends toward the interior of the ore washing cylinder 1 to further clean the material. Specifically, in this embodiment, the first cleaning member 41, the second cleaning member 42 and the discharge flushing member 43 all include a plurality of nozzles and water pipes, which are connected to a water source and are fixed to an external fixed structure and will not rotate with the rotation of the ore washing cylinder 1 and the filter cylinder 51. A plurality of the nozzles are evenly arranged along the length direction of the water pipe and are connected to the water pipe, and the nozzles are directed toward the raw materials below to achieve flushing of the ore.

[0025] Specifically, as shown in Figure 2, in some embodiments, the ore washing cylinder 1 includes an inner cylinder 11 and an outer cylinder 12, and the inner cylinder 11 and the outer cylinder 12 are coaxially sleeved together. The inner cylinder 11 is arranged inside and a filter is provided in the middle. The inner cylinder 11 and the outer cylinder 12 are fixed by circumferentially arranged support blocks. An interlayer for discharging mud and sand is formed therebetween. The interlayer is connected to a mud discharge pipe so that the filter part can be used to filter and discharge the mud and sand in the internal ore into the interlayer during rotation, and finally transported out through the mud discharge pipe. Furthermore, each inner cylinder 11 is the same size.

[0026] In order to set a feeding structure at one end of each ore washing cylinder 1 so as to use the material conveying channel 22 to convey raw materials of corresponding viscosity into the inside of the ore washing cylinder 1, as shown in Figure 1, in some embodiments, each of the ore washing cylinders 1 is arranged in an interval type, and two adjacent ore washing cylinders 1 are arranged at intervals, and a material guide pipe 13 is provided at the interval, which can guide the ore from one of the ore washing cylinders 1 into the other ore washing cylinder 1.

[0027] Specifically, in order to reduce equipment costs without affecting the efficiency of ore washing, in this embodiment, three ore washing drums 1 are arranged, among which the inclination angle of the first-stage ore washing drum 1 is 0°~5°, the inclination angle of the second-stage ore washing drum 1 is 5°~15°, and the inclination angle of the third-stage ore washing drum 1 is 15°~30°. The three ore washing drums 1 are easy to install and can meet the needs of classified cleaning of ore. For ore pulp with higher viscosity, its mud content is larger, so it is sent to the first-stage ore washing drum 1 and washed multiple times through the three ore washing drums 1. The ore pulp with relatively lower viscosity is transported to the second-stage ore washing drum 1 or the third-stage ore washing drum 1 according to the mud content for two-stage cleaning or one-stage cleaning, thereby relatively reducing the number of ore washing steps. At the same time, since the second-stage and third-stage ore washing drums 1 have relatively large inclinations, their conveying speed is faster, and at the same time, it can meet the needs of cleaning ore with less mud, which is beneficial to improving ore washing efficiency.

[0028] In order to achieve stable operation of the ore washing drum 1, as shown in Figures 1, 3 and 4, in some embodiments, the number of the driving mechanisms 3 is the same as the number of the ore washing drum 1, and the driving mechanism 3 includes an outer gear ring 31, a gear 32, a transmission member 33 and a driving motor 34. The outer gear ring 31 is embedded in the middle part of the outer side of the ore washing drum 1, and the outer side of the outer gear ring 31 is provided with a tooth groove. The gear 32 is rotatably mounted on the base at the bottom and is provided on one side of the outer gear ring 31, meshing and rotating with the tooth groove of the outer gear ring 31. The driving motor 34 is connected to the central axis of the gear 32 through the transmission member 33. Specifically, the transmission member 33 can adopt a belt-type reduction box, which can also be a gear-type or other form of structure that can transmit rotation. During implementation, the driving motor 34 drives the gear 32 to rotate through the transmission member 33, and drives the outer gear ring 31 and the ore washing drum 1 to rotate through the gear 32 to wash the ore. In addition, a support structure 14 is provided at both ends of each of the ore washing cylinders 1. The support structure 14 includes a support ring 141 and two support wheels 142. The support rings 141 are respectively embedded in the outer sides of the two ends of the ore washing cylinder 1. The two support wheels 142 are also rotatably mounted on the base at the bottom and are respectively provided on both sides of the bottom of the ore washing cylinder 1. The support wheels 142 are supported below the support rings 141 and are rotatably connected to the support rings 141, so that the ore washing cylinder 1 can rotate stably.

[0029] In order to improve the cleaning quality of each washing drum 1, as shown in Figures 2 to 5, in some embodiments, the interior of the washing drum 1 is sequentially provided with a first stirring assembly 6 and a second stirring assembly 7 along the material conveying direction, and the first stirring assembly 6 and the second stirring assembly 7 respectively include a first stirring plate 61 and a second stirring plate 71 arranged along the circumference of the washing drum 1, and the first stirring plate 61 and the second stirring plate 71 are both fixedly connected to the washing drum 1 at one end and extend toward the center of the washing drum 1 at the other end, and can rotate therewith when the washing drum 1 is in operation. Specifically, in this embodiment, each of the first stirring plates 61 is arranged in a spiral manner, and two groups of the second stirring components 7 are provided. The second stirring plates 71 of the two groups of the second stirring components 7 are staggered to disperse the silt and ore, and the installation position of the second stirring plates 71 is consistent with the length direction of the washing drum 1. When the raw material enters the interior of the washing drum 1, it is first spirally stirred and transported by the first stirring plate 61, and then sequentially passed through the two second stirring components 7 for multiple stirrings to disperse the silt and ore. Finally, the silt can be filtered out through the washing drum 1. Furthermore, as shown in Figure 4, in the first-stage washing drum 1, the second stirring plate 71 is a C-shaped structure, which can drive the raw material upward and lift the material at the top of the washing drum 1 to ensure sufficient contact and friction, which is convenient for removing the silt on the ore or in blocks. As shown in Figure 5, in the washing drum 1 after the first stage, the second stirring plate 71 is an L-shaped structure.

[0030] Working principle: During implementation, the slurry is transported through the main conveying channel 21, and its viscosity is detected by the viscosity detection module 23. The opening and closing valve 24 of the corresponding material conveying channel 22 is triggered to open according to its viscosity value, so that the material passes through the corresponding material conveying channel 22 and enters the corresponding ore washing drum 1. The driving motor 34 drives the gear 32 to rotate through the transmission member 33, and the gear 32 drives the outer gear ring 31 and the ore washing drum 1 to rotate. The cleaning water is respectively transported to the ore washing drum 1 and the filter drum 51 through the first cleaning member 41, the second cleaning member 42 and the discharge flushing member 43. The raw material is turned over by the first stirring plate 61 and the second stirring plate 71 in the ore washing drum 1 to clean the mud and sand therein. After the multi-stage ore washing drum 1 is cleaned, the ore is transported to the filter drum 51 again. The filter drum 51 can rotate with the rotation of the ore washing drum 1, and the second cleaning member 42 can supply water to the inside of the filter drum 51 to clean the ore in a small path, thereby further improving the cleaning efficiency.

[0031] The present invention is provided with a plurality of washing cylinders 1, a slurry inlet structure 2, a plurality of driving mechanisms 3 and a water injection mechanism 4. The washing cavities of the plurality of washing cylinders 1 are connected in sequence, and the washing cylinders 1 form an inclination angle with the horizontal plane, and the inclination angle increases in sequence along the material conveying direction. In addition, a separate material conveying channel 22 is configured for each washing cylinder 1. The viscosity value of the conveyed slurry is detected by the viscosity detection module 23 provided in the main conveying channel 21, so that the slurry of the corresponding viscosity is conveyed to the corresponding washing cylinder 1. Ores of different viscosities can be conveyed and cleaned in a targeted manner. Among them, the closer to the first level, the greater the viscosity value of the slurry in the washing cylinder 1. It is combined with a graded cleaning form, and the raw materials When the viscosity is high, it is mainly necessary to remove the slurry containing mud and sand. Therefore, a cylinder with a smaller inclination is selected to extend the cleaning time of the raw material in the first-stage washing cylinder 1, so as to facilitate the full discharge of mud and sand. Then the inclination of the cylinder is increased to increase the flow rate of the raw material in the subsequent cylinder, thereby dispersing the accumulated raw material step by step, which is conducive to cleaning the mud and sand attached to the ore; and the feed can also be controlled according to the viscosity of the raw material. For slurry with higher viscosity, it has a larger mud content and needs to be fed into the first-stage washing cylinder 1 for multiple washings. The slurry with relatively lower viscosity is transported to the subsequent washing cylinder 1 according to the slurry viscosity setting. This relatively reduces the washing steps and ensures that the ore can be fully cleaned, which is beneficial to improving the washing efficiency.

[0032] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this application. Unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0033] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0034] The specific embodiments of the present invention described above do not limit the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A cylindrical ore washing device for laterite nickel ore, characterized in that, it includes: Several ore washing cylinders, each of which forms an ore washing cavity inside, and the several ore washing cavities are connected in sequence. Moreover, the several ore washing cylinders all form an inclination angle with the horizontal plane, and the inclination angle of the ore washing cylinder increases successively along the material conveying direction; A pulp feeding structure, which has a main conveying channel and several material conveying channels. The main conveying channel is connected to several material conveying channels, and several material conveying channels are respectively connected to several ore washing cylinders. A viscosity detection module for detecting the viscosity of the pulp is arranged in the main conveying channel to control the pulp to be conveyed into the corresponding ore washing cylinder through the corresponding material conveying channel according to the detected viscosity value. Among them, the viscosity value of the pulp in the ore washing cylinder closer to the first stage is larger; Several driving mechanisms, which are respectively connected to several ore washing cylinders to drive the ore washing cylinders to rotate respectively; and, A water injection mechanism, which is arranged in each ore washing cylinder to provide a water source for cleaning the ore materials into the ore washing cylinder.

2. The cylindrical ore washing device for laterite nickel ore according to claim 1, characterized in that, The ore washing cylinders are arranged at intervals, and a guiding pipeline is arranged at each interval to guide the ore from one ore washing cylinder to another ore washing cylinder.

3. The cylindrical ore washing device for laterite nickel ore according to claim 1, characterized in that, The number of the driving mechanisms is the same as the number of the ore washing cylinders. And the driving mechanism includes an external gear ring, a gear, a transmission member and a driving motor. The external gear ring is sleeved on the middle part of the outer side of the ore washing cylinder, and a tooth groove is arranged on the outer side of the external gear ring. The gear is arranged on one side of the external gear ring and is meshed and rotationally connected with the tooth groove of the external gear ring. The driving motor is connected to the central shaft of the gear through the transmission member to drive the gear to rotate through the transmission member, driving the external gear ring and the ore washing cylinder to rotate.

4. The cylindrical ore washing device for laterite nickel ore according to claim 1, characterized in that, Support structures are further arranged at both ends of each ore washing cylinder. The support structure includes a support ring and two support wheels. The support rings are respectively sleeved on the outer sides of both ends of the ore washing cylinder, and the two support wheels are respectively arranged on both sides of the bottom of the ore washing cylinder, and the support wheels support below the support ring and are rotationally connected with the support ring.

5. The cylindrical ore washing device for laterite nickel ore according to claim 1, characterized in that, A first stirring assembly and a second stirring assembly are successively arranged inside the ore washing cylinder along the material conveying direction. The first stirring assembly and the second stirring assembly respectively include a first stirring plate and a second stirring plate arranged circumferentially along the ore washing cylinder. One end of the first stirring plate and the second stirring plate is fixedly connected to the ore washing cylinder, and the other end extends towards the central position of the ore washing cylinder and can rotate along with the operation of the ore washing cylinder.

6. The cylindrical ore washing device for laterite nickel ore according to claim 5, characterized in that, each of the first stirring plates is arranged in a spiral manner, two sets of the second stirring assemblies are provided, the second stirring plates of the two sets of the second stirring assemblies are arranged staggeredly, and the installation position of the second stirring plates is consistent with the length direction of the ore washing cylinder.

7. The cylindrical ore washing device for laterite nickel ore according to claim 1, characterized in that, opening and closing valves are arranged on a plurality of the material conveying channels, and the opening and closing valves are electrically connected to the viscosity detection module, so as to drive the corresponding opening and closing valves to open through the viscosity detection module when the material viscosity reaches the set value of the processing consistency of each ore washing cylinder.

8. The cylindrical ore washing device for laterite nickel ore according to claim 1, characterized in that, the cylindrical ore washing device for laterite nickel ore further includes a plurality of filtering and cleaning structures, the plurality of filtering and cleaning structures are respectively arranged in the ore washing cylinders after the first stage, and each of the filtering and cleaning structures includes a filtering cylinder, the filtering cylinder is concentrically arranged in the ore washing cylinder and is fixedly connected to the ore washing cylinder through a support rod, can rotate with the ore washing cylinder, and the diameters of the plurality of filtering cylinders increase in sequence along the material conveying direction and are sequentially communicated.

9. The cylindrical ore washing device for laterite nickel ore according to claim 8, characterized in that, the water injection mechanism includes a first cleaning member and a second cleaning member, the first cleaning member is arranged inside the ore washing cylinder of the first stage for supplying water to the inside of the ore washing cylinder of the first stage, and the second cleaning member is arranged inside the ore washing cylinder after the first stage and is located inside the plurality of filtering cylinders for supplying water to the inside of the plurality of filtering cylinders.

10. The cylindrical ore washing device for laterite nickel ore according to claim 9, characterized in that, the water injection mechanism further includes a discharge washing member, the first cleaning member, the second cleaning member and the discharge washing member each include a plurality of spray heads and water pipes, the water pipes are communicated with a water source, the plurality of spray heads are uniformly arranged along the length direction of the water pipes and are communicated with the water pipes, and the discharge washing member is arranged at the discharge end of the ore washing cylinder of the last stage, and one end of the discharge washing member extends into the inside of the ore washing cylinder to further wash the material.

Images