Device for continuously removing iron and aluminum from battery lixivium

Abstract

The utility model discloses a device for continuously removing iron and aluminum from battery leachate, which comprises a feeding component, a discharging component and a discharging component, the feeding component comprises a leachate feeding component, a first feeding component and a second feeding component, and the outlet end of the second feeding component is connected with a first branch pipeline and a second branch pipeline; the outlet end of the leachate feeding component, the outlet end of the first feeding component and the first branch pipeline are respectively communicated with the reaction tank, and the reaction tank is provided with a first overflow pipe; the transfer tank is communicated with the first overflow pipe and the second branch pipeline; and the control component is electrically connected with the leachate feeding component, the first feeding component and the second feeding component, and the control component is used for controlling the feeding amount of the leachate feeding component, the first feeding component and the second feeding component to the reaction tank. The device can accurately control the feeding quantity of various reaction raw materials, automatically and continuously remove iron and aluminum from the battery leachate, and ensure sufficient reaction, stable quality of the obtained product and high production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery recycling, in particular to a device for continuously removing iron and aluminum from battery leaching liquid. Background Art

[0002] Impurity removal is the process of removing impurities from the battery leachate, such as graphite and metal ions such as Al, Cu, and Fe that affect the quality of the finished product. It is an essential process for lithium battery recycling.

[0003] However, the existing impurity removal devices and methods for separating and recovering metal elements in battery leachate cannot achieve continuous impurity removal of iron and aluminum in battery leachate, and the impurity removal efficiency is low. Moreover, a large amount of human resources are required to transfer the slag and leachate before and after each impurity removal stage, etc., which has high labor costs. The parameters of materials required for each impurity removal stage cannot be guaranteed, and the accuracy is low, so the quality of the subsequent products cannot be guaranteed. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a device for continuously removing iron and aluminum from battery leaching liquid.

[0005] The solution of the utility model to solve the technical problem is:

[0006] A device for continuously removing iron and aluminum from battery leachate, comprising:

[0007] A feed assembly, comprising a leachate feed component, a first feed component and a second feed component, wherein an outlet end of the second feed component is connected to a first branch pipeline and a second branch pipeline;

[0008] A reaction tank, wherein the outlet end of the leachate feeding component, the outlet end of the first feeding component and the first branch pipeline are respectively connected to the reaction tank, and the reaction tank is provided with a first overflow pipe;

[0009] a transfer tank, connected to the first overflow pipe and connected to the second branch pipeline;

[0010] A control component is electrically connected to the leachate feeding component, the first feeding component and the second feeding component, and the control component is used to control the feeding amount of the leachate feeding component, the first feeding component and the second feeding component into the reaction tank.

[0011] The utility model has at least the following beneficial effects: under the control of the control component, the leachate feeding component can provide the reaction tank with an accurate amount of leachate raw material, the first feeding component can provide the reaction tank with an accurate amount of sodium chlorate solution, and the second feeding component can provide the reaction tank with an accurate amount of calcium carbonate solution, and the leachate raw material, sodium chlorate solution and calcium carbonate solution react in the reaction tank, and are transferred through the transfer tank and then separated by filter pressing. Since the feeding of various materials is automatically controlled, the labor intensity of workers can be reduced, and the accurate amount of various materials ensures that the reaction of various materials is sufficient, greatly improving production efficiency, and obtaining products with more stable quality.

[0012] Moreover, since the overflow between the reaction tank and the transfer tank is connected, the leaching liquid continuously removes iron and aluminum, and the material after the reaction in the reaction tank can directly enter the transfer tank through overflow for further reaction. This process does not require manual material transfer, reduces the labor intensity of workers, reduces labor costs, and improves production efficiency.

[0013] In addition, the second feed component is provided with a second branch pipeline connected to the transfer tank, which can provide the transfer tank with a calcium carbonate solution for adjusting the pH value, thereby ensuring that the reaction liquid meets the process requirements.

[0014] As a further improvement of the above technical solution, the battery leachate continuous iron and aluminum removal device also includes:

[0015] The reaction stirring component is provided with a reaction stirring head, and the reaction stirring head is arranged in the reaction tank. The reaction stirring component is electrically connected to the control component to control the reaction stirring head to stir in the reaction tank.

[0016] The setting of the reaction stirring component can make the various reaction liquids in the reaction tank react more fully, so as to obtain products with more stable quality.

[0017] As a further improvement of the above technical solution, the battery leachate continuous iron and aluminum removal device also includes:

[0018] The transfer stirring component is provided with a transfer stirring head, the transfer stirring head is arranged in the transfer tank, and the transfer stirring component is electrically connected to the control component to control the transfer stirring head to stir in the transfer tank.

[0019] The transfer stirring component is provided to stir the mixture in the transfer tank so as to allow various reaction liquids to react completely, improve the impurity removal efficiency, and obtain products with more stable quality.

[0020] As a further improvement of the above technical solution, the battery leachate continuous iron and aluminum removal device also includes:

[0021] A plurality of flow meters are respectively arranged at the outlet ends of the leachate feeding component, the first feeding component and the second feeding component, and the plurality of flow meters are respectively electrically connected to the control component.

[0022] The setting of the flow meter can obtain the flow information of various reaction liquids and transmit the flow information to the control component to accurately control the feed amount and feed rate of various reaction liquids.

[0023] As a further improvement of the above technical solution, the battery leachate continuous iron and aluminum removal device also includes:

[0024] Acid-base meter, the acid-base meter is arranged on the first overflow pipe, and the acid-base meter is electrically connected to the control component.

[0025] The pH meter can detect the pH value of the mixture after the reaction in the reaction tank, and transmit the acquired pH value information to the control component to accurately control the second feeding component to add the pH adjuster into the transfer tank, adjust the pH value of the reaction liquid in the transfer tank, and meet the process requirements.

[0026] As a further improvement of the above technical solution, the battery leachate continuous iron and aluminum removal device also includes:

[0027] A filter press is connected to the transfer tank and is used for filtering the material flowing out of the transfer tank.

[0028] The filter press can filter the reaction mixture to obtain a product with stable and good quality.

[0029] As a further improvement of the above technical solution, the battery leachate continuous iron and aluminum removal device further includes:

[0030] A transfer level meter, which is used to obtain the liquid level of the transfer tank;

[0031] A material transfer pump is provided between the filter press and the transfer tank, and the transfer liquid level meter and the material transfer pump are electrically connected to the control component respectively.

[0032] When the liquid level in the transfer tank reaches a certain height, the reacted mixture that meets the process requirements is automatically pumped out to the filter press by the transfer pump for the filtration process.

[0033] As a further improvement of the above technical solution, the transfer tank is provided with multiple transfer tanks, a second overflow pipe is provided between two adjacent transfer tanks, the two adjacent transfer tanks are connected through the second overflow pipe, and the second branch pipeline is connected to the transfer tank connected to the reaction tank. Providing multiple transfer tanks connected in sequence allows the material to overflow through each transfer tank in sequence, thereby ensuring complete reaction to meet process requirements.

[0034] As a further improvement of the above technical solution, the battery leachate continuous iron and aluminum removal device also includes:

[0035] A stepped base, wherein the stepped base is provided with a plurality of steps, the reaction tank and the plurality of transfer tanks are arranged on the steps in sequence from top to bottom, and the material passes through the reaction tank and the plurality of transfer tanks in sequence from top to bottom in an overflow manner.

[0036] It enables the material to smoothly pass through the reaction tank and each transfer tank in an overflow manner from top to bottom, avoiding the backflow of the material.

[0037] As a further improvement of the above technical solution, the battery leachate continuous iron and aluminum removal device also includes an alarm, which is electrically connected to the control component. The alarm can promptly give an alarm prompt to the on-site personnel when abnormalities occur in various components, so that the on-site personnel can take timely processing actions to reduce the occurrence of on-site accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following is a brief description of the drawings required for the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present utility model, not all of the embodiments, and those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0039] Figure 1 It is a schematic diagram of the overall structure of a device for continuously removing iron and aluminum from battery leachate according to an embodiment of the utility model;

[0040] Figure 2 It is a schematic diagram of the structure of the reaction tank of an embodiment of the utility model;

[0041] Figure 3 It is a schematic structural diagram of a first transfer tank in an embodiment of the utility model;

[0042] Figure 4 It is a schematic structural diagram of the second transfer tank of an embodiment of the utility model.

[0043] Figure numerals: 100, reaction tank; 110, acid-base meter; 120, reaction stirring component; 200, first transfer tank; 210, first transfer stirring component; 300, second transfer tank; 310, transfer liquid level meter; 320, transfer pump; 330, second transfer stirring component; 400, battery leachate tank; 410, battery leachate tank feed pump; 420, third valve; 430, first flow meter; 440, battery leachate tank level meter ; 500, first storage tank; 510, first storage tank feed pump; 520, fourth valve; 530, second flow meter; 540, first storage tank level gauge; 600, second storage tank; 610, second storage tank feed pump; 620, first branch pipeline; 621, first valve; 630, second branch pipeline; 631, second valve; 640, third flow meter; 650, second storage tank level gauge; 700, filter press; 710, fifth valve. DETAILED DESCRIPTION

[0044] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0045] In the description of the present invention, descriptions of orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description. They do not 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 the present invention.

[0046] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0047] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0048] Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. The various technical features in the utility model can be combined interchangeably without conflicting with each other.

[0049] Reference Figures 1 to 4 The embodiment of the utility model proposes a device for continuous iron and aluminum removal of battery leachate, which can automatically control the amount and ratio of leachate and reaction materials, and automatically perform continuous iron and aluminum removal of battery leachate.

[0050] The present invention adopts the coprecipitation method to remove iron and aluminum. In the process of removing iron and aluminum, an oxidant (sodium chlorate solution) is first added to the leaching solution to remove Fe 2+ The ferrous iron removal solution is obtained, and then a pH regulator (calcium carbonate solution) is added to obtain Fe(OH)3 and Al(OH)3 precipitates. The precipitation process can be carried out simultaneously without any particular order. This method can achieve the purpose of deep impurity removal only through simple chemical precipitation, without the use of an extractant, and there will be no residual extractant. Moreover, the obtained iron and aluminum precipitates are easy to filter and easy to recover. The reaction equation is as follows:

[0051] 3CaCO3+2Fe 3+ +3H2O=2Ca 2+ +2Fe(OH)3+CO2;

[0052] 3CaCO3+2Al 3+ +3H2O=2Ca 2+ +2Al(OH)3+CO2.

[0053] In this embodiment, the battery leachate continuous iron and aluminum removal device includes a feed assembly, a reaction tank 100, a transfer tank, and a control component. Under the control of the control component, the feed assembly can provide the reaction tank 100 with accurate amounts of leachate raw materials, sodium chlorate solution, and calcium carbonate solution. The leachate raw materials, sodium chlorate solution, and calcium carbonate solution react in the reaction tank 100, and are transferred through the transfer tank and then separated by filter press. The battery leachate continuous iron and aluminum removal device of this embodiment is used for precise feeding, which maximizes the accuracy of various process parameters during the reaction process and can ensure that Fe 3+ and Al 3+ It fully reacts with the reaction materials, greatly improving the production capacity and making the product quality more stable.

[0054] In this embodiment, the feed assembly includes an leaching liquid feed component, a first feed component and a second feed component. The leaching liquid feed component, the first feed component and the second feed component are electrically connected to the control component, respectively. The outlet end of the leaching liquid feed component, the outlet end of the first feed component and the outlet end of the second feed component are respectively connected to the reaction tank 100.

[0055] The leachate feeding component includes a battery leachate tank 400 and a battery leachate tank feeding pump 410. The battery leachate tank 400 is used to store battery leachate. The battery leachate tank 400 is connected to the reaction tank 100 through a pipeline. The battery leachate tank feeding pump 410 is arranged at the pipeline connecting the battery leachate tank 400 and the reaction tank 100. The outlet end of the battery leachate tank feeding pump 410 is connected to the reaction tank 100. The control component can control the battery leachate tank feeding pump 410 to start and pump the battery leachate in the battery leachate tank 400 into the reaction tank 100.

[0056] In this embodiment, the leachate feeding component also includes a battery leachate tank level meter 440, which is used to detect the liquid level of the battery leachate tank 400 and transmit the acquired liquid level information to the control component so that the control component can accurately control the feed amount of the battery leachate.

[0057] The first feeding component includes a first storage tank 500 and a first storage tank feeding pump 510. The first storage tank 500 is used to store sodium chlorate solution. The first storage tank 500 is connected to the reaction tank 100 through a pipeline, and the first storage tank feeding pump 510 is arranged on the pipeline connecting the first storage tank 500 and the reaction tank 100. The outlet end of the first storage tank feeding pump 510 is connected to the reaction tank 100. The control component can control the first storage tank feeding pump 510 to start and pump the sodium chlorate solution in the first storage tank 500 out to the reaction tank 100.

[0058] In this embodiment, the first feeding component also includes a first storage tank liquid level meter 540, which is used to detect the liquid level of the first storage tank 500 and transmit the acquired liquid level information to the control component so that the control component can accurately control the feed amount of the sodium chlorate solution.

[0059] The second feeding component includes a second storage tank 600 and a second storage tank pump 610, the second storage tank 600 is used to store the calcium carbonate solution, the second storage tank 600 is connected to the reaction tank 100 through a pipeline, and the second storage tank pump 610 is arranged on the pipeline connecting the second storage tank 600 and the reaction tank 100, and the control component can control the second storage tank pump 610 to start and pump the calcium carbonate solution in the second storage tank 600 to the reaction tank 100. In this embodiment, the outlet end of the second storage tank pump 610 is connected to the first branch pipeline 620 and the second branch pipeline 630, the first branch pipeline 620 is connected to the reaction tank 100, and the second branch pipeline 630 is connected to the transfer tank.

[0060] In this embodiment, the second feeding component also includes a second storage tank liquid level meter 650, which is used to detect the liquid level of the second storage tank 600 and transmit the acquired liquid level information to the control component so that the control component can accurately control the feed amount of the calcium carbonate solution.

[0061] In this embodiment, the reaction tank 100 is provided with a first overflow pipe, and the reaction tank 100 is connected to the transfer tank through the first overflow pipe, and the reacted material in the reaction tank 100 can flow to the transfer tank for further processing by overflow. It can be understood that since the second storage tank 600 is connected to the transfer tank through the second branch pipeline 630, the calcium carbonate solution can enter the transfer tank to further adjust the pH of the mixture in the transfer tank to meet the process requirements.

[0062] It can be understood that a first valve 621 is provided on the first branch pipe 620, and a second valve 631 is provided on the second branch pipe 630. In some embodiments, the first valve 621 and the second valve 631 are both electric valves and are electrically connected to the control component respectively. The control component controls the switching of the first valve 621 and the second valve 631, so that the pH value of the mixture can be automatically adjusted.

[0063] In some embodiments, the reaction tank 100 is connected to the transfer tank through a first overflow pipe, and a pH meter 110 is provided on the first overflow pipe. The pH meter 110 is used to detect the pH of the mixture flowing to the transfer tank. The pH meter 110 is electrically connected to the control component, and the detected pH information is transmitted to the control component. The control component controls the opening and closing of the second valve 631 according to the obtained pH information to accurately adjust the pH of the mixture in the transfer tank.

[0064] If the pH value remains within the range required by the process, the reaction raw materials are continuously fed into the reaction tank 100 for reaction; if the pH value decreases or increases, it is necessary to make preparations for replenishment and reduction in the transfer tank according to the material characteristics to meet the process requirements of the pH value.

[0065] In some embodiments, in order to allow various liquids in the reaction tank 100 to react more fully, the battery leachate continuous iron and aluminum removal device also includes a reaction stirring component 120. It can be understood that the reaction stirring component 120 is electrically connected to the control component and is provided with a reaction stirring head. The reaction stirring head is arranged in the reaction tank 100. The reaction stirring head can stir the mixture in the reaction tank 100 evenly to improve the impurity removal efficiency.

[0066] In some embodiments, the continuous iron and aluminum removal device for battery leachate also includes a transfer stirring component, which is electrically connected to the control component and is provided with a transfer stirring head. The transfer stirring head is arranged in the transfer tank and can further stir the mixture in the transfer tank evenly, further allow various reaction liquids to react completely, and further improve the efficiency of impurity removal.

[0067] In this embodiment, in order to further improve the degree of completeness of the reaction, the leachate feeding component, the first feeding component and the second feeding component all feed into the bottom of the reaction tank 100, the second feeding component feeds into the bottom of the transfer tank, and the first overflow pipe outlet connected between the reaction tank 100 and the transfer tank is also inserted into the bottom of the transfer tank.

[0068] In some embodiments, the battery leachate continuous iron and aluminum removal device further includes a plurality of flow meters, and flow meters are respectively provided at the outlet end of the leachate feeding component, the outlet end of the first feeding component, and the outlet end of the second feeding component, and the plurality of flow meters are respectively electrically connected to the control component. Specifically, in this embodiment, a first flow meter 430 is provided at the outlet end of the battery leachate tank feed pump 410 for detecting the flow of the leachate; a second flow meter 530 is provided at the outlet end of the first storage tank feed pump 510 for detecting the flow of the sodium chlorate solution; and a third flow meter 640 is provided at the outlet end of the second storage tank feed pump 610 for detecting the flow of the calcium carbonate solution.

[0069] In this embodiment, the first flow meter 430, the second flow meter 530 and the third flow meter 640 are electrically connected to the control component respectively, and the detected leachate flow information, sodium chlorate solution flow information and calcium carbonate solution flow information are respectively transmitted to the control component. The control component controls the feed amount entering the reaction tank 100 more accurately according to the acquired flow information of various reaction liquids.

[0070] In this embodiment, the leachate feeding component further includes a third valve 420, which is disposed on a pipeline connecting the battery leachate tank 400 and the reaction tank 100 and is located at the rear end of the first flowmeter 430. It is understandable that the third valve 420 may be an electric valve and is electrically connected to the control component, and the control component may automatically control the opening and closing of the third valve 420 according to the flow information obtained by the first flowmeter 430 and the liquid level information obtained by the battery leachate tank liquid level meter 440, thereby controlling the flow rate of the leachate feed.

[0071] In this embodiment, the first feeding component further includes a fourth valve 520, which is disposed on a pipeline connecting the first storage tank 500 and the reaction tank 100 and is located at the rear end of the second flow meter 530. It is understandable that the fourth valve 520 may be an electric valve and is electrically connected to the control component, and the control component may automatically control the opening of the fourth valve 520 according to the flow information obtained by the second flow meter 530 and the liquid level information obtained by the second storage tank liquid level meter 650, thereby controlling the flow rate of the sodium chlorate solution feed.

[0072] In some embodiments, the battery leachate continuous iron and aluminum removal device also includes a filter press 700, the filter press 700 is connected to the transfer tank, the filter press 700 is electrically connected to the control component, and the reacted material is automatically filtered through the filter press 700.

[0073] In this embodiment, the battery leachate continuous iron and aluminum removal device also includes a transfer level meter 310 and a transfer pump 320, wherein the transfer level meter 310 is used to obtain the liquid level of the transfer tank, which is electrically connected to the control component and can transmit the obtained liquid level information to the control component. The transfer pump 320 is arranged on the pipeline between the filter press 700 and the transfer tank, and the control component controls the action of the transfer pump 320 according to the obtained liquid level information. When the liquid level reaches a certain height, the transfer pump 320 is turned on, and the mixture in the transfer tank can be pumped out to the filter press 700 for pressure filtration separation.

[0074] In this embodiment, a fifth valve 710 is further provided between the transfer pump 320 and the filter press 700 to control the on-off and liquid flow of the pipeline between the transfer pump 320 and the filter press 700. It is understandable that the fifth valve 710 may be a manual valve or an electric valve.

[0075] In some embodiments, a plurality of transfer tanks are provided, and the plurality of transfer tanks are connected in overflow in sequence. Specifically, a second overflow pipe is provided between two adjacent transfer tanks, and the two adjacent transfer tanks are connected through the first overflow pipe. The reacted material passes through each transfer tank in sequence by overflow, wherein the second branch pipeline 630 is connected to the first transfer tank, that is, the transfer tank connected to the reaction tank 100, and the material transfer pump 320 is connected to the transfer tank at the end, and the transfer liquid level meter 310 is used to measure the liquid level of the end transfer tank.

[0076] It is understandable that the number of transfer tanks can be determined according to actual needs. In this embodiment, two transfer tanks are provided. The two transfer tanks are the first transfer tank 200 and the second transfer tank 300, respectively. A first overflow pipe is provided between the reaction tank 100 and the first transfer tank 200, and a second overflow pipe is provided between the first transfer tank 200 and the second transfer tank 300. The reaction tank 100, the first transfer tank 200 and the second transfer tank 300 overflow in sequence, the second branch pipeline 630 is connected to the first transfer tank 200, the transfer pump 320 is installed at the second transfer tank 300, and the transfer liquid level meter 310 is used to measure the liquid level of the second transfer tank 300. The leachate, sodium chlorate solution and calcium carbonate solution enter the reaction tank 100, the first transfer tank 200 and the second transfer tank 300 in sequence, and are transferred to the filter press 700 for pressure filtration separation under the action of the transfer pump 320.

[0077] In this embodiment, the battery leachate continuous iron and aluminum removal device also includes a stepped base for placing the reaction tank 100, the first transfer tank 200 and the second transfer tank 300. In this embodiment, the stepped base is provided with three steps, the reaction tank 100 is provided on the uppermost step, the first transfer tank 200 is provided on the middle step, and the second transfer tank 300 is provided on the lowermost step, and the material can pass through the reaction tank 100, the first transfer tank 200 and the second transfer tank 300 in an overflow manner.

[0078] Such an arrangement enables the material to smoothly pass through the reaction tank 100 , the first transfer tank 200 and the second transfer tank 300 in an overflow manner from top to bottom, thereby avoiding the backflow of the material and making the spatial layout more reasonable.

[0079] In this embodiment, the reaction tank 100, the first transfer tank 200 and the second transfer tank 300 have the same volume. The second overflow pipe outlet for connecting the first transfer tank 200 and the second transfer tank 300 is inserted into the bottom of the second transfer tank 300 to improve the completeness of the reaction.

[0080] In this embodiment, the first transfer tank 200 and the second transfer tank 300 are both equipped with a transfer stirring member, the transfer stirring member used to stir the mixture in the first transfer tank 200 is the first transfer stirring member 210, and the transfer stirring member used to stir the mixture in the second transfer tank 300 is the second transfer stirring member 330. In this embodiment, the first transfer stirring member 210, the second transfer stirring member 330 and the reaction stirring member 120 are all stirring motors.

[0081] Since the leaching liquid is continuously de-ironized and de-aluminized, the workload of the staff can be reduced and the production efficiency can be improved. In addition, various measuring instruments (such as flow meters, pH meters 110, transfer level meters 310, etc.) are mainly concentrated in front and behind the reaction tank 100 and at the transfer tank at the end, which not only realizes automatic feeding, but also reduces the use of instruments and pipeline equipment, thereby reducing the use cost.

[0082] In some embodiments, the continuous iron and aluminum removal device for battery leachate also includes an alarm, which is electrically connected to the control component. When various components of the continuous iron and aluminum removal device for battery leachate fail, such as abnormalities in the reaction stirring component 120, the transfer stirring component, etc., the control component controls the alarm to sound an alarm to reduce the occurrence of on-site accidents.

[0083] In this embodiment, the alarm is an audible and visual alarm, which can send out alarm prompts to workers on site through sound and light effects.

[0084] In this embodiment, the control component is a distributed control system (DCS control system). It can be understood that the DCS control system is a distributed control system based on a microprocessor, and has the characteristics of decentralized control functions and centralized display operations.

[0085] The various pipelines, equipment, and instruments in the battery leachate continuous iron and aluminum removal device of this embodiment can be centrally displayed on the computer screen of the DCS control system, which can effectively monitor various process data on site and query the historical trends of various control parameters at any time. In the actual operation process, the operator sets the feed rate and total feed amount of different raw materials (battery leachate, sodium chlorate solution, calcium carbonate solution) on the computer screen of the DCS control system according to the production parameter formula requirements of the process product. The leachate feeding component, the first feeding component, and the second feeding component feed the reaction tank 100 at a constant flow rate according to the predetermined parameters, and the feeding is automatically quantitatively controlled by the PID regulation loop.

[0086] The preferred implementation modes of the present invention are specifically described above, but the present invention is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A device for continuous iron and aluminum removal from battery leachate, characterized in that: include: A feed assembly, comprising a leachate feed component, a first feed component and a second feed component, wherein an outlet end of the second feed component is connected to a first branch pipeline and a second branch pipeline; A reaction tank, wherein the outlet end of the leachate feeding component, the outlet end of the first feeding component and the first branch pipeline are respectively connected to the reaction tank, and the reaction tank is provided with a first overflow pipe; a transfer tank, connected to the first overflow pipe and connected to the second branch pipeline; A control component is electrically connected to the leachate feeding component, the first feeding component and the second feeding component, and the control component is used to control the feeding amount of the leachate feeding component, the first feeding component and the second feeding component into the reaction tank.

2. The device for continuous iron and aluminum removal from battery leachate according to claim 1, characterized in that: The battery leachate continuous iron and aluminum removal device also includes: The reaction stirring component is provided with a reaction stirring head, and the reaction stirring head is arranged in the reaction tank. The reaction stirring component is electrically connected to the control component to control the reaction stirring head to stir in the reaction tank.

3. The device for continuous iron and aluminum removal from battery leachate according to claim 1, characterized in that: The battery leachate continuous iron and aluminum removal device also includes: The transfer stirring component is provided with a transfer stirring head, the transfer stirring head is arranged in the transfer tank, and the transfer stirring component is electrically connected to the control component to control the transfer stirring head to stir in the transfer tank.

4. The device for continuous iron and aluminum removal from battery leachate according to claim 1, characterized in that: The battery leachate continuous iron and aluminum removal device also includes: A plurality of flow meters are respectively arranged at the outlet ends of the leachate feeding component, the first feeding component and the second feeding component, and the plurality of flow meters are respectively electrically connected to the control component.

5. The device for continuous iron and aluminum removal from battery leachate according to claim 1, characterized in that: The battery leachate continuous iron and aluminum removal device also includes: Acid-base meter, the acid-base meter is arranged on the first overflow pipe, and the acid-base meter is electrically connected to the control component.

6. The device for continuous iron and aluminum removal from battery leachate according to claim 1, characterized in that: The battery leachate continuous iron and aluminum removal device also includes: A filter press is connected to the transfer tank and is used for filtering the material flowing out of the transfer tank.

7. The device for continuous iron and aluminum removal from battery leachate according to claim 6, characterized in that: The battery leachate continuous iron and aluminum removal device also includes: A transfer level meter, which is used to obtain the liquid level of the transfer tank; A material transfer pump is provided between the filter press and the transfer tank, and the transfer liquid level meter and the material transfer pump are electrically connected to the control component respectively.

8. The device for continuous iron and aluminum removal from battery leachate according to claim 1, characterized in that: There are multiple transfer tanks, and a second overflow pipe is provided between two adjacent transfer tanks. The two adjacent transfer tanks are connected through the second overflow pipe, and the second branch pipeline is connected to the transfer tank connected to the reaction tank.

9. The device for continuous iron and aluminum removal from battery leachate according to claim 8, characterized in that: The battery leachate continuous iron and aluminum removal device also includes: A stepped base, wherein the stepped base is provided with a plurality of steps, the reaction tank and the plurality of transfer tanks are arranged on the steps in sequence from top to bottom, and the material passes through the reaction tank and the plurality of transfer tanks in sequence from top to bottom in an overflow manner.

10. The device for continuous iron and aluminum removal from battery leachate according to claim 1, characterized in that: The battery leachate continuous iron and aluminum removal device also includes an alarm, and the alarm is electrically connected to the control component.

Images