Impurity removal device for laterite-nickel ore leachate

Abstract

The laterite-nickel ore leachate impurity removal device comprises a tank body, a filter part and a cleaning assembly, a filter area is arranged in the middle of the tank body, a liquid inlet communicated with the filter area is further formed in the side wall of the tank body, the filter part is provided with a plurality of compartments arranged at intervals in the circumferential direction of the filter part, filter holes are formed in the upper side and the lower side of each compartment, and the filter holes are communicated with the liquid inlet. Each compartment is filled with a filter material, the filter part is rotatably mounted in the filter area, so that when the filter part rotates, the liquid inlet can be communicated with one compartment, and the cleaning assembly is connected with the liquid inlet. The filter material in the compartment can be comprehensively cleaned, and the cleaning effect is good.

Description

Technical Field

[0001] The present application relates to the technical field of laterite nickel ore processing equipment, and in particular to a laterite nickel ore leaching solution impurity removal device. Background Art

[0002] In the process of preparing nickel sulfate and cobalt sulfate from laterite nickel ore, the laterite nickel ore leaching solution needs to be extracted and impurities removed.

[0003] Chinese patent CN113061748A discloses a laterite-nickel ore leachate treatment system and method, the laterite-nickel ore leachate treatment system comprises an impurity removal device, an extraction device and an oil removal device, the impurity removal device comprises a first filter body, a first tube and a second tube, the first filter body has a first clear liquid area, a first filter area and a first sedimentation area arranged in sequence from top to bottom, the first filter area is filled with filter material, the first tube is used to pass the laterite-nickel ore leachate into the first sedimentation area, the laterite-nickel ore leachate forms a first mixture under the action of the filter material, the second tube is used to discharge the first mixture out of the first filter body, the extraction device is used to extract the first mixture to separate an oil-cobalt mixed solution and an oil-nickel mixed solution, the oil removal device is used to filter the oil-cobalt mixed solution to form a cobalt solution and filter the oil-nickel mixed solution to form a nickel solution.

[0004] When cleaning the filter material in the first filter area, the above technology continuously introduces liquid into the first filter area through the sixth tube to continuously flip the filter material in the first filter area, thereby causing the suspended matter solidified on the filter material to fall off and sink to the bottom of the first sedimentation area. However, the liquid sprayed from the sixth tube is difficult to cover the entire filter area, and the filter material in the entire filter area cannot be cleaned, resulting in poor cleaning effect. Summary of the invention

[0005] The purpose of this application is to overcome the above technical deficiencies and propose a laterite nickel ore leaching solution impurity removal device to solve the technical problem that the filter material in the entire filter area cannot be cleaned in the prior art, resulting in poor cleaning effect.

[0006] In order to achieve the above technical objectives, this application adopts the following technical solutions: The present application provides a laterite nickel ore leaching solution impurity removal device, comprising: A tank body, wherein a filtering area is provided in the middle of the tank body, and a liquid inlet communicating with the filtering area is also provided on the side wall of the tank body; A filter element, wherein the filter element is provided with a plurality of compartments spaced apart along its circumferential direction, the compartments are provided with filter holes at upper and lower sides, each of the compartments is filled with filter material, the filter element is rotatably mounted on the filter area, so that when the filter element rotates, the liquid inlet can be communicated with one of the compartments; and A cleaning component is connected to the liquid inlet.

[0007] In some embodiments, the filter element includes two filter plates and multiple partitions, the filter plates are adapted to the tank body, the two filter plates are spaced apart from top to bottom, the filter plates are provided with the filter holes, the partition is located between the two filter plates and connects the two filter plates, and the two adjacent partitions and the filter plates together enclose the compartment.

[0008] In some embodiments, a cavity and a plurality of first liquid spray holes communicating with the cavity and the compartment are provided on a side wall of the tank body corresponding to the filtration area, and the cavity is communicated with the liquid inlet.

[0009] In some embodiments, the tank body is further provided with a clear liquid area and a sedimentation area respectively located at the upper and lower sides of the filtration area; The laterite nickel ore leaching solution impurity removal device also includes a liquid inlet pipe and a liquid discharge pipe, wherein the liquid inlet pipe is connected to the sedimentation area, and the liquid discharge pipe is connected to the clear liquid area.

[0010] In some embodiments, the laterite nickel ore leachate impurity removal device also includes a first baffle, which is adapted to the compartment, installed on the side wall of the tank body and located on the upper side of the filter element, and the first baffle is sealed with the upper side of the filter element, and the first baffle is arranged on the same side as the liquid inlet.

[0011] In some embodiments, the first baffle is provided with a cavity connected to the cleaning assembly, and a plurality of second liquid spray holes connected to the cavity are provided on the lower side of the first baffle.

[0012] In some embodiments, the laterite nickel ore leachate impurity removal device further includes a second baffle, the second baffle is adapted to the compartment, the second baffle is arranged on the side wall of the tank body and is located at the lower side of the filter element, the second baffle is sealed with the lower side of the filter element, and the second baffle corresponds to the first baffle; The side wall of the tank body is also provided with a liquid discharge port, and the liquid inlet and the liquid discharge port are connected to the same compartment.

[0013] In some embodiments, a liquid storage tank connected to the compartment is provided on the upper side of the second baffle, and the liquid storage tank is connected to the liquid discharge port.

[0014] In some embodiments, one end of the liquid inlet pipe extends into the sedimentation area and is bent downward; The laterite nickel ore leaching solution impurity removal device further comprises a third baffle, which is connected to the end of the liquid inlet pipe and is located below the liquid inlet pipe.

[0015] In some embodiments, the bottom of the tank body is conical, and a sewage outlet is also provided at the bottom of the tank body; The laterite nickel ore leaching solution impurity removal device also includes a scraper, which is rotatably installed at the bottom of the tank body and is used to clean the suspended matter at the bottom of the tank body.

[0016] In some embodiments, the laterite nickel ore leaching solution impurity removal device further includes a detection device, which is disposed in the drainage pipe and is used to detect the flow rate of the material in the drainage pipe.

[0017] In some embodiments, the laterite nickel ore leachate impurity removal device also includes a connecting shaft, which is connected to the filter element and coaxially arranged with the filter element, and the lower end of the connecting shaft is connected to the rotating shaft of the scraper so that the scraper and the connecting shaft rotate synchronously.

[0018] Compared with the prior art, the laterite nickel ore leachate impurity removal device provided by the present application has a filter area in the middle of the tank body, and a liquid inlet connected to the filter area is also provided on the side wall of the tank body. The filter element is provided with a plurality of compartments spaced along its circumferential direction, and each of the compartments is filled with filter material. The filter element is rotatably installed in the filter area, and the cleaning component is connected to the liquid inlet. When in use, the leachate is passed into the tank body for impurity removal. With the continuous passage of the leachate, more and more suspended matter is adsorbed on the surface of the filter material, thereby affecting the impurity removal efficiency, and the filter material needs to be backwashed. The filter element is rotated so that the liquid inlet of the filter area is just connected to one of the compartments, and the cleaning liquid is passed into the compartment through the cleaning component, and the filter material in the compartment is backwashed, so that the filter material in the compartment is continuously turned over, and the suspended matter solidified on the filter material falls off. When the filter material in the compartment is cleaned, the filter element can be rotated so that the next compartment is connected to the liquid inlet of the filter area, and the filter material in the next compartment can be backwashed. As the filter element rotates, the filter material in each compartment can be cleaned one by one, and the volume of the compartment is much smaller than the volume of the filter area, so that the liquid sprayed from the liquid inlet of the filter area can cover the entire compartment, so that the filter material in the compartment can be fully cleaned, and the cleaning effect is better.

[0019] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application and implement it according to the contents of the specification, the preferred embodiments of the present application are described in detail as follows in conjunction with the accompanying drawings. The specific implementation methods of the present application are given in detail by the following embodiments and their accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an embodiment of a laterite nickel ore leaching solution impurity removal device provided by the present application; Figure 2 yes Figure 1 A front sectional view of the medium impurity removal device; Figure 3 yes Figure 2 A top view of the medium impurity removal device; Figure 4 yes Figure 2 The main sectional view of the middle tank body; Figure 5 yes Figure 3 A partial cross-sectional view of the middle tank body; Figure 6 yes Figure 2 A left sectional view of the middle tank body; Figure 7 yes Figure 2 Schematic diagram of the filter element.

[0021] Description of reference numerals: 1-tank body, 11-filtration area, 12-clear liquid area, 13-sedimentation area, 14-liquid inlet, 15-liquid discharge port, 16-cavity, 17-first liquid spray hole, 18-drainage port, 19-third baffle, 2-filter element, 21-compartment, 22-filter plate, 221-filter hole, 23-partition, 3-cleaning component, 31-liquid storage tank, 32-cleaning pump, 4-liquid inlet pipe, 5-liquid discharge pipe, 6-first baffle, 61-cavity, 7-second baffle, 71-liquid storage tank, 8-connecting shaft, 9-scraper. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0023] In order to solve the technical problem in the prior art that the filter material in the entire filter area cannot be cleaned, resulting in poor cleaning effect, the present application provides a laterite nickel ore leaching liquid impurity removal device, which can comprehensively clean the filter material in the compartment and has a good cleaning effect.

[0024] See also Figure 1 , Figure 1 It is a schematic diagram of the structure of a laterite nickel ore leaching solution impurity removal device in one embodiment of the present application.

[0025] The present application provides a laterite nickel ore leachate impurity removal device, comprising a tank body 1, a filter element 2 and a cleaning assembly 3, wherein a filter area 11 is provided in the middle of the tank body 1, and a liquid inlet 14 connected to the filter area 11 is also provided on the side wall of the tank body 1, the filter element 2 is provided with a plurality of compartments 21 spaced apart along its circumferential direction, filter holes 221 are provided on the upper and lower sides of the compartment 21, and each of the compartments 21 is filled with filter material, the filter element 2 is rotatably installed on the filter area 11, so that when the filter element 2 rotates, the liquid inlet 14 can be connected to one of the compartments 21, and the cleaning assembly 3 is connected to the liquid inlet 14.

[0026] In this embodiment, when used, the leachate is passed into the tank body 1 for impurity removal. As the leachate is continuously passed, more and more suspended matter is adsorbed on the surface of the filter material, thereby affecting the impurity removal efficiency, and the filter material needs to be backwashed; the filter element 2 is rotated so that the liquid inlet 14 is connected to one of the compartments 21, and the cleaning liquid is passed into the compartment 21 through the cleaning component 3 to backwash the filter material in the compartment 21, so that the filter material in the compartment 21 is constantly turned over, thereby causing the suspended matter solidified on the filter material to fall off. When the filter material in the compartment 21 is cleaned, the filter element 2 is rotated so that the next compartment 21 is connected to the liquid inlet 14, and the filter material in the next compartment 21 can be backwashed. As the filter element 2 rotates, the filter materials in each compartment 21 can be cleaned one by one, and the volume of the compartment 21 is much smaller than the volume of the filter area 11, so that the liquid sprayed from the liquid inlet 14 can cover the entire compartment 21, thereby being able to fully clean the filter materials in the compartment 21, and the cleaning effect is better.

[0027] In this embodiment, the cleaning component 3 includes a liquid storage tank 31 and a cleaning pump 32. The liquid storage tank 31 is connected to the inlet of the cleaning pump 32 through a pipeline, and the outlet of the cleaning pump 32 is connected to the liquid inlet 14 through a pipeline. The liquid storage tank 31 stores cleaning liquid, and the cleaning pump 32 can pump the cleaning liquid into the compartment 21.

[0028] In this example, see Figure 7 The compartment 21 is fan-shaped and is open toward one side of the side wall of the tank body 1, so that the liquid inlet 14 can be connected to the compartment 21 accordingly. A plurality of filter holes 221 are provided on both the upper and lower sides of the compartment 21, and the diameter of the filter holes 221 is smaller than the diameter of the filter material, thereby ensuring that the compartment 21 can accommodate the filter material and the leachate can pass through the compartment 21 smoothly.

[0029] In one embodiment, the filter material can be one or more of granular activated carbon, ceramsite, fiber balls, and quartz sand.

[0030] In some embodiments, see Figure 7 The filter element 2 includes two filter plates 22 and a plurality of partitions 23. The filter plates 22 are adapted to the tank body 1. The two filter plates 22 are spaced apart from top to bottom. The filter plates 22 are provided with filter holes 221. The partitions 23 are located between the two filter plates 22 and connect the two filter plates 22. Two adjacent partitions 23 and the filter plates 22 together enclose the compartment 21.

[0031] In this embodiment, the filter plate 22 is arranged in a circular shape, and its diameter is adapted to the inner diameter of the tank body 1. The side of the filter plate 22 is sealed with the side wall of the tank body 1. The two filter plates 22 and the side wall of the tank body 1 together enclose a cylindrical cavity 61. The partition 23 is located in the cylindrical cavity 61, and the partition 23 is arranged along the radial direction of the cylindrical cavity 61. The upper and lower ends of the partition 23 are respectively connected to the two filter plates 22. A connecting piece is also provided in the middle of the cylindrical cavity 61, and the inner side of the partition 23 is connected to the connecting piece, thereby forming the compartment 21 with a fan-shaped arrangement.

[0032] In some embodiments, see Figures 4 to 6 The side wall of the tank body 1 corresponding to the filtering area 11 is provided with a cavity 16 and a plurality of first liquid spray holes 17 communicating with the cavity 16 and the compartment 21 , and the cavity 16 is communicated with the liquid inlet 14 .

[0033] In this embodiment, in order to be able to comprehensively clean the filter material in the compartment 21, a cavity 16 is further provided on the side wall of the tank body 1, and the cavity 16 is connected to the liquid inlet 14. The cavity 16 is provided with a plurality of first liquid spray holes 17 on the side facing the compartment 21, and the plurality of first liquid spray holes 17 are arranged in an array. When in use, the cleaning liquid output by the cleaning component 3 first enters the cavity 16, and then is sprayed into the compartment 21 from the plurality of first liquid spray holes 17. Such a setting can evenly spray the cleaning liquid into the compartment 21, thereby improving the cleaning effect.

[0034] In some embodiments, see Figures 2 to 5 The tank body 1 is also provided with a clear liquid area 12 and a sedimentation area 13 respectively located on the upper and lower sides of the filtering area 11; the laterite nickel ore leachate impurity removal device also includes an inlet pipe 4 and a discharge pipe 5, the inlet pipe 4 is connected to the sedimentation area 13, and the discharge pipe 5 is connected to the clear liquid area 12 for outputting the filtered leachate.

[0035] In this embodiment, the tank body 1 is divided into a clear liquid area 12, a filtration area 11 and a sedimentation area 13 from top to bottom. The liquid inlet pipe 4 is used to transport the leachate to the sedimentation area 13, and the filtration is performed in an overflow manner from bottom to top. The filtered leachate is output through the discharge pipe 5.

[0036] In some embodiments, see Figures 4 to 5 The laterite nickel ore leachate impurity removal device also includes a first baffle 6, which is adapted to the compartment 21. The first baffle 6 is installed on the side wall of the tank body 1 and is located on the upper side of the filter element 2. The first baffle 6 is sealed with the upper side of the filter element 2, and the first baffle 6 is arranged on the same side as the liquid inlet 14.

[0037] In this embodiment, during cleaning, the liquid in the compartment 21 contains a large amount of suspended matter. In order to prevent the suspended matter from splashing upward to the clear liquid area 12, a first baffle 6 can be set on the side wall of the tank body 1. The first baffle 6 is fan-shaped and adapted to the shape of the compartment 21. The first baffle 6 and the liquid inlet 14 are set on the same side, that is, the first baffle 6 is located above the liquid inlet 14. When the compartment 21 to be cleaned is rotated to a position connected to the liquid inlet 14, the first baffle 6 is located just above the compartment 21 and seals the compartment 21. At this time, the liquid in the compartment 21 cannot overflow upward and can only flow downward to the sedimentation area 13.

[0038] In some embodiments, see Figure 5 The first baffle plate 6 is provided with a cavity 61 connected to the cleaning assembly 3 , and a plurality of second liquid spray holes connected to the cavity 61 are provided on the lower side of the first baffle plate 6 .

[0039] In this embodiment, in order to further improve the cleaning efficiency, the first baffle 6 is a hollow structure, in which a cavity 61 is provided, and a plurality of the second spray holes are provided on the lower side of the first baffle 6, and the cavity 61 is also connected to the cleaning component 3. When in use, the cleaning component 3 can transport cleaning liquid into the cavity 61, and then the cleaning liquid is sprayed from the second spray hole from top to bottom through the filter hole 221 to the filter material in the compartment 21, and then the first spray hole 17 is used to spray the cleaning liquid in a horizontal direction, which can improve the cleaning efficiency and realize rapid cleaning of the filter material. In addition, the water flow from top to bottom can drive the suspended matter to move downward, and can quickly remove the suspended matter from the compartment 21.

[0040] In some embodiments, see Figures 4 to 5 The laterite nickel ore leachate impurity removal device also includes a second baffle 7, which is adapted to the compartment 21. The second baffle 7 is arranged on the side wall of the tank body 1 and is located at the lower side of the filter element 2. The second baffle 7 is sealed with the lower side of the filter element 2, and the second baffle 7 corresponds to the first baffle 6; the side wall of the tank body 1 is also provided with a drain port 15, and the liquid inlet 14 and the drain port 15 are connected to the same compartment 21.

[0041] In this embodiment, for the compartment 21 being cleaned, most of the liquid therein is cleaning liquid and contains only a small amount of leachate, so the liquid can be discharged for separate treatment. Therefore, the embodiment of the present application also provides a second baffle 7 on the side wall of the tank body 1, and the second baffle 7 is located directly below the first baffle 6. The distance between the first baffle 6 and the second baffle 7 is the thickness of the filter element 2. The drain port 15 is also located below the liquid inlet 14. The second baffle 7 can block the lower side of the compartment 21 so that the liquid is discharged from the drain port 15 to prevent the liquid from entering the sedimentation area 13.

[0042] Specifically, during cleaning, the first baffle 6 and the second baffle 7 seal the compartment 21 so that the compartment 21 is not interconnected with the rest of the tank body. Only one of the compartments 21 is cleaned each time, while the remaining compartments 21 can continue to filter, so that the laterite nickel ore leachate can be continuously filtered without stopping the machine to clean the filter material.

[0043] In this embodiment, there are n compartments 21. Due to the provision of the first baffle 6 and the second baffle 7, one of the compartments 21 cannot overflow upward for filtering. At this time, the number of compartments 21 that can play a filtering role is n-1, which has a certain impact on the filtration efficiency. In order to minimize the impact of the first baffle 6 and the second baffle 7, the number of compartments 21 can be increased as much as possible, thereby reducing the cross-sectional area of ​​a single compartment 21. Correspondingly, the cross-sectional areas of the first baffle 6 and the second baffle 7 will also be reduced, which can reduce the cleaning of the filtration efficiency. At the same time, since the volume of the compartment 21 is reduced, the filter material therein is also less, which is conducive to the cleaning of the filter material.

[0044] In some embodiments, see Figure 5 , a liquid storage tank 71 communicating with the compartment 21 is provided on the upper side of the second baffle 7, and the liquid storage tank 71 is connected to the liquid discharge port 15. The liquid storage tank 71 is connected with the compartment 21 through the filter hole 221. During cleaning, the liquid in the compartment 21 enters the liquid storage tank 71 from top to bottom, and then is discharged through the liquid discharge port 15. By providing the liquid storage tank 71, the suspended matter can be quickly taken away from the compartment 21.

[0045] In some embodiments, one end of the liquid inlet pipe 4 extends into the sedimentation area 13 and is bent downward; the laterite nickel ore leaching solution impurity removal device also includes a third baffle 19, which is connected to the end of the liquid inlet pipe 4 and is located below the liquid inlet pipe 4.

[0046] In this embodiment, the filtering method is overflow filtration from bottom to top, that is, the liquid inlet pipe 4 transports the leachate to the sedimentation area 13, and the liquid in the sedimentation area 13 slowly settles and overflows to the filtration area 11 and the clear liquid area 12. In order to prevent the liquid flowing out of the liquid inlet pipe 4 from impacting the bottom of the tank body 1, a third baffle 19 is also arranged at intervals below the liquid inlet pipe 4. The third baffle 19 is used to change the flow direction of the liquid inlet pipe 4, so that the liquid in the liquid inlet pipe 4 slowly flows into the sedimentation area 13 to avoid it impacting the tank body 1.

[0047] In some embodiments, the bottom of the tank body 1 is conical, and a sewage outlet 18 is also provided at the bottom of the tank body 1; the laterite nickel ore leaching liquid impurity removal device also includes a scraper 9, which is rotatably installed at the bottom of the tank body 1, and the scraper 9 is used to clean the suspended matter at the bottom of the tank body 1.

[0048] In this embodiment, since the sedimentation area 13 is located at the bottom of the tank body 1, tiny suspended matter will be deposited at the bottom of the sedimentation area 13 and needs to be cleaned regularly. Therefore, a scraper 9 is also provided at the bottom of the tank body 1, and the scraper 9 abuts against the side wall of the tank body 1, and a sewage outlet 18 is provided at the conical wall of the tank body 1. When in use, when there are many tiny suspended matter deposited at the bottom of the tank body 1 and need to be cleaned, the sewage outlet 18 can be opened and the scraper 9 can be started. Through the disturbance of the scraper 9, the tiny suspended matter at the bottom is suspended in the liquid, and then discharged from the sewage outlet 18 with the liquid. Such a setting can effectively clean the tiny suspended matter at the bottom of the tank body 1.

[0049] In this embodiment, the laterite nickel ore leachate impurity removal device also includes a rotating shaft and a driving device. The rotating shaft is rotatably installed at the bottom of the tank body along the axis in the vertical direction. The scraper 9 is arranged in a conical shape to adapt to the bottom of the tank body 1. The scraper 9 is installed on the rotating shaft, and the driving device is connected to the rotating shaft to drive the rotating shaft and the scraper 9 to rotate.

[0050] In some embodiments, the laterite nickel ore leaching solution impurity removal device further includes a detection device, which is disposed in the drainage pipe 5 and is used to detect the flow rate of the material in the drainage pipe 5 .

[0051] In this embodiment, with the continuous input of the leachate, the suspended matter adsorbed by the filter material gradually increases, resulting in a gradual decrease in the filtering effect of the filter material. At this time, the flow rate of the drain pipe 5 will also decrease, because only when the filtering effect of the filter material decreases to a certain extent will the cleaning component 3 be abandoned to clean the filter material. Therefore, in order to clearly know when the filter material needs to be cleaned, a detection device can be set at the drain pipe 5. The detection device can detect the flow rate of the material in the drain pipe 5. By monitoring the flow rate of the drain pipe 5, the amount of suspended matter adsorbed by the filter material can be monitored. When the flow rate detected by the detection device is lower than the set value, it indicates that the filter material has adsorbed a lot of suspended matter and needs to be cleaned, and the cleaning component 3 can be started to clean the filter material.

[0052] In this embodiment, the detection device is a flow meter.

[0053] In some embodiments, see Figure 2 The laterite nickel ore leaching solution impurity removal device also includes a connecting shaft 8, which is connected to the filter element 2 and coaxially arranged with the filter element 2, and the lower end of the connecting shaft 8 is connected to the rotating shaft of the scraper 9 so that the scraper 9 and the connecting shaft 8 rotate synchronously.

[0054] In this embodiment, the connecting shaft 8 is coaxially arranged with the tank body 1 and the rotating shaft, the lower end of the connecting shaft 8 is fixedly connected to the rotating shaft, a mounting hole is penetrated in the middle of the filter element 2, the filter element 2 is mounted on the connecting shaft 8 through the mounting hole, and is fixedly connected to the connecting shaft 8, so that the rotating shaft and the connecting shaft 8 are driven to rotate at the same time by the driving device, thereby making the scraper 9 and the filter element 2 rotate synchronously.

[0055] In this embodiment, in order to prevent the filter material from entering the first liquid spray hole 17, a filter screen is further provided at the open portion of the compartment 21, and the pore size of the filter screen is smaller than the diameter of the filter material.

[0056] In order to better understand this application, the following Figures 1 to 7 The technical solution of this application is described in detail: First, the flow rate of the drain pipe 5 is detected in real time by the detection device. When the flow rate of the drain pipe 5 is lower than the set value, the cleaning component 3 is started, and the cleaning pump transports the cleaning liquid from the liquid inlet 14 to the cavity 16, and then sprays it into the compartment 21 in a horizontal direction through the first liquid spray hole 17. At the same time, the cleaning pump also pumps the cleaning liquid into the cavity 61 through the pipeline, and then sprays it into the compartment 21 from top to bottom through the second liquid spray hole, so that the filter material in the compartment 21 is constantly turned over, and then the suspended matter solidified on the filter material falls off and enters the liquid storage tank 71, completing the cleaning of the filter material. After the cleaning is completed, the cleaning component 3 is closed, and the connecting shaft 8 and the filter element 2 are driven to rotate so that the next compartment 21 corresponds to the liquid inlet 14, and the cleaning component 3 is started again to clean the compartment 21, and the above operation is repeated until the filter material in all compartments 21 is cleaned.

[0057] The present application can clean the filter materials in each compartment 21 one by one, and the volume of the compartment 21 is much smaller than the volume of the filtration area 11, so that the liquid sprayed from the liquid inlet 14 can cover the entire compartment 21, thereby being able to fully clean the filter materials in the compartment 21, and the cleaning effect is better.

[0058] The specific implementation methods of the present application described above do not constitute a limitation on the protection scope of the present application. Any other corresponding changes and modifications made according to the technical concept of the present application should be included in the protection scope of the claims of the present application.

Claims

1. A laterite nickel ore leaching solution impurity removal device, characterized in that: include: A tank body, wherein a filtering area is provided in the middle of the tank body, and a liquid inlet communicating with the filtering area is also provided on the side wall of the tank body; A filter element, wherein the filter element is provided with a plurality of compartments spaced apart along its circumferential direction, the compartments are provided with filter holes on the upper and lower sides, each of the compartments is filled with filter material, and the filter element is rotatably mounted on the filter area so that when the filter element rotates, the liquid inlet can be communicated with one of the compartments; as well as A cleaning component is connected to the liquid inlet.

2. The impurity removal device for laterite nickel ore leaching solution according to claim 1, characterized in that: The filter element includes two filter plates and multiple partitions. The filter plates are adapted to the tank body. The two filter plates are spaced apart from top to bottom. The filter plates are provided with filter holes. The partition is located between the two filter plates and connects the two filter plates. Two adjacent partitions and the filter plates together enclose the compartment.

3. The impurity removal device for laterite nickel ore leaching solution according to claim 1, characterized in that: The side wall of the tank body corresponding to the filtering area is provided with a cavity and a plurality of first liquid spraying holes communicating with the cavity and the compartment, and the cavity is communicated with the liquid inlet.

4. The impurity removal device for laterite nickel ore leaching solution according to claim 1, characterized in that: The tank body is also provided with a clear liquid area and a sedimentation area respectively located at the upper and lower sides of the filtration area; The laterite nickel ore leaching solution impurity removal device also includes a liquid inlet pipe and a liquid discharge pipe, wherein the liquid inlet pipe is connected to the sedimentation area, and the liquid discharge pipe is connected to the clear liquid area.

5. The impurity removal device for laterite nickel ore leaching solution according to claim 4, characterized in that: The laterite nickel ore leachate impurity removal device also includes a first baffle, which is adapted to the compartment, installed on the side wall of the tank body and located on the upper side of the filter element, and the first baffle is sealed with the upper side of the filter element. The first baffle is arranged on the same side as the liquid inlet.

6. The impurity removal device for laterite nickel ore leaching solution according to claim 5, characterized in that: The first baffle is provided with a cavity connected to the cleaning assembly, and a plurality of second liquid spray holes communicating with the cavity are provided on the lower side of the first baffle.

7. The impurity removal device for laterite nickel ore leaching solution according to claim 5, characterized in that: The laterite nickel ore leachate impurity removal device further includes a second baffle, the second baffle is adapted to the compartment, the second baffle is arranged on the side wall of the tank body and is located at the lower side of the filter element, the second baffle is sealed and matched with the lower side of the filter element, and the second baffle corresponds to the first baffle; The side wall of the tank body is also provided with a liquid discharge port, and the liquid inlet and the liquid discharge port are connected to the same compartment.

8. The impurity removal device for laterite nickel ore leaching solution according to claim 7, characterized in that: A liquid storage tank connected to the compartment is provided on the upper side of the second baffle, and the liquid storage tank is connected to the liquid discharge port.

9. The impurity removal device for laterite nickel ore leaching solution according to claim 4, characterized in that: One end of the liquid inlet pipe extends into the sedimentation area and is bent downward; The laterite nickel ore leaching solution impurity removal device further comprises a third baffle, which is connected to the end of the liquid inlet pipe and is located below the liquid inlet pipe.

10. The impurity removal device for laterite nickel ore leaching solution according to claim 1, characterized in that: The bottom of the tank body is conical, and a sewage outlet is also provided at the bottom of the tank body; The laterite nickel ore leaching solution impurity removal device also includes a scraper, which is rotatably installed at the bottom of the tank body and is used to clean the suspended matter at the bottom of the tank body.

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