A lithium-rich solution configuration method, device, system and electronic equipment

Abstract

Embodiments of the present invention disclose a method, device, system, and electronic device for configuring a lithium-rich liquid. The method for configuring the lithium-rich liquid includes obtaining configuration requirements for the lithium-rich liquid, determining a required amount of each ion in the lithium-rich liquid based on the configuration requirements, determining an amount of each raw material required to configure the lithium-rich liquid based on the required amount of each ion, and adding each raw material according to the amount of each raw material to obtain the lithium-rich liquid, thereby achieving automatic configuration of the lithium-rich liquid.

Description

Technical Field

[0001] The present invention relates to the field of new energy technologies, and in particular to a configuration method, device, system and electronic equipment for lithium-rich liquid. Background Art

[0002] Lithium is an indispensable raw material for the development of the new energy vehicle industry. Most of my country's lithium resources are found in salt lakes. Therefore, a low-cost, environmentally friendly, efficient, and rapidly scalable salt lake lithium extraction technology is needed to increase my country's lithium salt production. Lithium ion sieve adsorption technology is one such salt lake lithium extraction technology.

[0003] Lithium ion sieve adsorption technology primarily involves three steps: adsorption and desorption, concentration and impurity removal, and crystallization and lithium precipitation. In the adsorption and desorption step, lithium ions are first adsorbed on a lithium ion sieve, which is then desorbed with acid to produce a desorbed solution. In the concentration and impurity removal step, the desorbed solution is concentrated and impurities removed to produce a lithium-rich solution. In the crystallization and lithium precipitation step, the lithium-rich solution is used to produce battery-grade lithium carbonate.

[0004] To determine the production process for lithium crystallization before proceeding, a lithium-rich solution must be prepared to study the process. Because the lithium-rich solution contains at least lithium, sodium, potassium, magnesium, calcium, sulfate, and chloride ions, its preparation is far more challenging than the automated solution preparation equipment currently available on the market, which can only add one or two solutes at a time. Summary of the Invention

[0005] In view of this, embodiments of the present invention provide a method, device, system, and electronic device for configuring lithium-rich liquid, so as to automatically configure the lithium-rich liquid.

[0006] According to a first aspect, an embodiment of the present invention provides a method for configuring a lithium-rich liquid, comprising the following steps: obtaining configuration requirements for the lithium-rich liquid; determining the required amount of each ion in the lithium-rich liquid based on the configuration requirements; determining the added amount of each raw material required to configure the lithium-rich liquid based on the required amount of each ion; and adding each raw material according to the added amount of each raw material to obtain the lithium-rich liquid.

[0007] Specifically, the configuration requirements include: the concentration of some ions contained in the lithium-rich solution, the pH value of the lithium-rich solution, and the configuration amount of the lithium-rich solution; or, the configuration requirements include: the concentration of all ions contained in the lithium-rich solution and the configuration amount of the lithium-rich solution.

[0008] Specifically, determining the amount of each raw material required to configure the lithium-rich solution based on the demand for each ion includes: determining the charge demand of the main anion and the charge demand of the secondary anion in the lithium-rich solution based on the demand for each ion; determining the selection order of cations in order from low to high according to the demand for each ion; for the main anion, obtaining the raw material corresponding to the main anion according to the selection order of the cations and charge conservation; after obtaining the raw material corresponding to the main anion, obtaining the raw material corresponding to the secondary anion according to the selection order of the cations and charge conservation.

[0009] Specifically, the step of obtaining the raw material corresponding to the main anion according to the selection order of the cations and charge conservation includes: obtaining the current charge demand of the main anion; determining the total charge demand of the first unoccupied cation according to the selection order of the cations and the demand for each ion, and determining the demand for the first unoccupied cation according to the total charge demand of the first unoccupied cation and the charge of the first unoccupied cation; using the first unoccupied cation and the main anion to form a raw material required for configuring the lithium-rich solution, determining the addition amount of the raw material according to the demand for the first unoccupied cation, and simultaneously determining the occupied charge of the main anion in the raw material; subtracting the occupied charge from the current charge demand to obtain the residual charge demand of the main anion, using the residual charge demand as the new current charge demand, and proceeding to the step of obtaining the current charge demand of the main anion.

[0010] Specifically, the anions in the lithium-rich solution include chloride ions and sulfate ions, and determining the charge demand of the main anions and the charge demand of the secondary anions in the lithium-rich solution according to the demand of each ion includes: determining the demand of the chloride ions and the demand of the sulfate ions based on the demand of each ion; comparing the demand of the chloride ions and the demand of the sulfate ions; when the demand of the chloride ions is greater than the demand of the sulfate ions, using the chloride ions as the main anions and the sulfate ions as the secondary anions; when the demand of the sulfate ions is greater than the demand of the chloride ions, using the sulfate ions as the main anions and the chloride ions as the secondary anions.

[0011] Specifically, when the main anion is sulfate ion, after obtaining the required amounts of all raw materials required to configure the lithium-rich solution, the method further includes: adding sulfuric acid as the last raw material; after adding the sulfuric acid, obtaining the actual pH value of the lithium-rich solution; and stopping adding the sulfuric acid when the actual pH value reaches the pH value of the lithium-rich solution specified in the configuration requirements.

[0012] Specifically, before configuring the lithium-rich liquid according to the addition amount of each raw material, it also includes: selecting a phase diagram matching the lithium-rich liquid based on the various ions contained in the lithium-rich liquid; when the lithium-rich liquid is likely to precipitate, determining the restriction conditions for adding each raw material based on the phase diagram; determining the addition method of each raw material based on the restriction conditions; when the lithium-rich liquid is bound to precipitate, issuing a prompt message and / or solution.

[0013] According to the second aspect, an embodiment of the present invention also provides a configuration device for a lithium-rich liquid, comprising an acquisition module, a first processing module, a second processing module and a configuration module, wherein the acquisition module is used to obtain the configuration requirements of the lithium-rich liquid; the first processing module is used to determine the required amount of each ion in the lithium-rich liquid according to the configuration requirements; the second processing module is used to determine the added amount of each raw material required to configure the lithium-rich liquid according to the required amount of each ion; and the configuration module is used to add each raw material according to the added amount of each raw material to obtain the lithium-rich liquid.

[0014] According to the third aspect, an embodiment of the present invention further provides an electronic device, comprising a memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the configuration method of the lithium-rich solution described in the first aspect or any one of the first aspects by executing the computer instructions.

[0015] According to the fourth aspect, an embodiment of the present invention also provides a lithium-rich liquid configuration system, comprising a mixing kettle, multiple first silos, multiple second silos, an electronic balance, a feed pipe, a peristaltic pump and the electronic device described in the third aspect; the mixing kettle is used to configure the lithium-rich liquid; each first silo is used to hold a solid raw material; the electronic balance is used to weigh the solid raw material in any of the first silos; one end of the feed pipe is connected to any of the first silos, and the other end is connected to the mixing kettle; each second silo is used to hold a liquid raw material; one end of the peristaltic pump is connected to any of the second silos, and the other end is connected to the mixing kettle; the electronic device is communicatively connected to the electronic balance, the feed pipe, the peristaltic pump and the mixing kettle.

[0016] The configuration method, device, system, and electronic device of the lithium-rich liquid provided in the embodiments of the present invention obtain the configuration requirements of the lithium-rich liquid, determine the required amount of each ion in the lithium-rich liquid according to the configuration requirements, determine the addition amount of each raw material required to configure the lithium-rich liquid according to the required amount of each ion, and add each raw material according to the addition amount of each raw material to obtain the lithium-rich liquid, thereby realizing automatic configuration of the lithium-rich liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The features and advantages of the present invention will be more clearly understood by referring to the accompanying drawings, which are schematic and should not be construed as limiting the present invention in any way. In the accompanying drawings:

[0018] Figure 1 Schematic diagram of the process for preparing lithium-rich solution;

[0019] Figure 2 It is a structural diagram of the lithium-rich solution configuration device;

[0020] Figure 3 A schematic diagram of the structure of an electronic device. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of the present invention.

[0022] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0023] An embodiment of the present invention provides a method for configuring a lithium-rich solution. Figure 1 The figure is a flow chart of the lithium-rich solution preparation method. Figure 1 As shown, the method for preparing the lithium-rich solution includes the following steps:

[0024] S10: Obtain configuration requirements for lithium-rich solution.

[0025] Specifically, the configuration requirements of the lithium-rich solution include: the concentration of some ions contained in the lithium-rich solution, the pH value of the lithium-rich solution and the configuration amount of the lithium-rich solution; or, the configuration requirements of the lithium-rich solution include: the concentration of all ions contained in the lithium-rich solution and the configuration amount of the lithium-rich solution.

[0026] The amount of the lithium-rich solution may be the volume of the lithium-rich solution or the weight of the lithium-rich solution.

[0027] S20: Determine the required amount of each ion in the lithium-rich solution according to the configuration requirements.

[0028] In the embodiment of the present invention, the required amount may be the amount of a substance, and the unit is mole.

[0029] Specifically, when the configuration requirements of the lithium-rich liquid include: the concentration of some ions contained in the lithium-rich liquid, the pH value of the lithium-rich liquid and the configuration amount of the lithium-rich liquid, the required amount of some ions of the concentration specified in the configuration requirements can be obtained according to the configuration amount of the lithium-rich liquid and the concentration of some ions contained in the lithium-rich liquid; and the required amount of remaining ions of the concentration not specified in the configuration requirements can be obtained according to the required amount of some ions of the concentration specified in the lithium-rich liquid and the pH value of the lithium-rich liquid.

[0030] When the configuration requirements of the lithium-rich solution include: the concentration of all ions contained in the lithium-rich solution and the configuration amount of the lithium-rich solution, the required amount of each ion in the lithium-rich solution can be obtained according to the concentration of all ions contained in the lithium-rich solution and the configuration amount of the lithium-rich solution.

[0031] S30: Determine the addition amount of each raw material required to prepare the lithium-rich solution based on the demand amount of each ion.

[0032] Specifically, the amount of each raw material required to prepare the lithium-rich solution can be determined according to the demand for each ion by the following method:

[0033] S301: Determining the charge requirement of the primary anion and the charge requirement of the secondary anion in the lithium-rich solution according to the requirement of each ion;

[0034] S302: determining the order of selecting cations according to the charge requirement of each ion from low to high;

[0035] S303: For the main anions, according to the selection order of cations and charge conservation, obtain the raw materials corresponding to the main anions;

[0036] S304: After obtaining the raw materials corresponding to the main anions, for the secondary anions, according to the selection order of the cations and charge conservation, obtain the raw materials corresponding to the secondary anions.

[0037] It should be noted that the lithium-rich solution is generally a lithium sulfate system or a lithium chloride system, that is, the anions in the lithium-rich solution include chloride ions and sulfate ions.

[0038] More specifically, S301 determines the charge demand of the main anion and the charge demand of the secondary anion in the lithium-rich solution according to the demand of each ion by the following method: determine the demand of chloride ions and the demand of sulfate ions based on the demand of each ion; compare the demand of chloride ions and the demand of sulfate ions; when the demand of chloride ions is greater than the demand of sulfate ions, use chloride ions as the main anion and sulfate ions as the secondary anion; when the demand of sulfate ions is greater than the demand of chloride ions, use sulfate ions as the main anion and chloride ions as the secondary anion.

[0039] For example, when the demand for chloride ions in the lithium-rich solution is 1 mol and the demand for sulfate ions is 0.3 mol, since the demand for chloride ions is greater than that for sulfate ions, chloride ions are the main anions and sulfate ions are the secondary anions.

[0040] For example, when the cations in the lithium-rich solution include potassium ions and calcium ions, the demand for potassium ions is 0.3 mol, the demand for calcium ions is 0.2 mol, and the demand for sodium ions is 0.5 mol, the charge demand for potassium ions is 0.3 mol, the charge demand for calcium ions is 0.4 mol, and the charge demand for sodium ions is 0.5 mol. The order of selecting cations determined in descending order of the cation charge demand is potassium ions, calcium ions, and sodium ions.

[0041] Specifically, in S303, according to the order of cation selection and charge conservation, the raw materials corresponding to the main anions can be obtained by the following method:

[0042] (1) Obtaining the current charge demand of the main anion;

[0043] (2) determining the total charge requirement of the first unoccupied cation according to the selection order of the cations and the required amount of each ion, and determining the required amount of the first unoccupied cation according to the total charge requirement of the first unoccupied cation and the charge of the first unoccupied cation;

[0044] (3) using the first unoccupied cation and the main anion to form a raw material required for preparing the lithium-rich solution, determining the amount of the raw material to be added based on the required amount of the first unoccupied cation, and determining the occupied charge of the main anion in the raw material;

[0045] (4) Subtracting the occupied charge from the current charge demand to obtain the remaining charge demand of the main anion, taking the remaining charge demand as the new current charge demand, and proceeding to the step of obtaining the current charge demand of the main anion.

[0046] For example, when chloride ions are the main anions in the lithium-rich solution and their demand is 1 mol; the cations in the lithium-rich solution include potassium ions and calcium ions, the demand for potassium ions is 0.3 mol, the demand for calcium ions is 0.2 mol, and the demand for sodium ions is 0.5 mol, the charge demand for potassium ions is 0.3 mol, the charge demand for calcium ions is 0.4 mol, and the charge demand for sodium ions is 0.5 mol. When the order of selecting cations determined in descending order of the cation charge demand is potassium ions, calcium ions, and sodium ions, step S303 includes the following steps:

[0047] (1) Obtain the current charge demand of the main anion, i.e., 1 mol;

[0048] (2) According to the selection order of cations, the total charge requirement of the first unoccupied cation is determined, that is, the total charge requirement of potassium ions is 0.3 mol; according to the total charge requirement of the first unoccupied cation and the charge of the first unoccupied cation, the demand of the first unoccupied cation is determined, that is, the total charge requirement of potassium ions is 0.3 mol, and the charge of potassium ions is 1 electron, so the demand of potassium ions is 0.3 mol;

[0049] (3) using the first unoccupied cation (i.e., potassium ion) and the main anion (i.e., chloride ion) to form a raw material (i.e., potassium chloride) required for preparing the lithium-rich solution, and determining the amount of raw material added based on the required amount of the first unoccupied cation, i.e., the amount of potassium chloride added is equal to the required amount of potassium ion, which is 0.3 mol, and the occupied charge of the main anion in potassium chloride is 0.3 mol;

[0050] (4) using the current charge demand of the main anion (i.e., 1 mol) minus the occupied charge of the main anion in the raw material (i.e., 0.3 mol) to obtain the remaining charge demand of the main anion (i.e., 0.7 mol), taking the remaining charge demand as the new current charge demand, and going to the step of obtaining the current charge demand of the main anion, i.e., step (1), and repeating the above (2)(3)(4);

[0051] The details are as follows:

[0052] (1) Obtain the current charge demand of the main anion, which is 0.7 mol;

[0053] (2) According to the selection order of cations, the total charge requirement of the first unoccupied cation is determined, that is, the total charge requirement of calcium ion is 0.4 mol. Since potassium ion has been occupied, calcium ion is the first unoccupied cation; according to the total charge requirement of the first unoccupied cation and the charge of the first unoccupied cation, the demand of the first unoccupied cation is determined, that is, the total charge requirement of calcium ion is 0.4 mol. The charge of calcium ion is 2 electrons, so the demand of calcium ion is 0.2 mol;

[0054] (3) The first unoccupied cation (i.e., calcium ion) and the main anion (i.e., chloride ion) are used to form a raw material (i.e., calcium chloride) required for the lithium-rich solution. The amount of raw material added is determined according to the required amount of the first unoccupied cation, i.e., the amount of calcium chloride added is equal to the required amount of calcium ion, which is 0.2 mol; the occupied charge of the main anion in calcium chloride is 0.3 mol

[0055] (4) Subtract the occupied charge of the main anion in the raw material (i.e., 0.4 mol) from the current charge demand of the main anion (i.e., 0.7 mol) to obtain the remaining charge demand of the main anion (i.e., 0.3 mol), and use the remaining charge demand of the main anion as the new current charge demand of the main anion, and go to step (1) of obtaining the current charge demand of the main anion, and repeat the above (2)(3)(4) until all the main anions are occupied.

[0056] It should be noted that the specific implementation method of step S304 for obtaining the raw material corresponding to the secondary anion based on the selection order of cations and charge conservation is the same as the specific implementation method of step S303 for obtaining the raw material corresponding to the main anion based on the selection order of cations and charge conservation, and will not be repeated here.

[0057] S40: adding each raw material according to the addition amount of each raw material to obtain a lithium-rich solution.

[0058] Specifically, after obtaining the addition amount of each raw material required to prepare the lithium-rich solution in step S30, each raw material can be added in any order and according to the addition amount of each raw material.

[0059] However, while the desorption solution for lithium extraction from salt lakes by adsorption is generally acidic, it is often adjusted to alkaline during the subsequent concentration and impurity removal process. In particular, the pH of the lithium-rich solution before crystallization is often between 12 and 13. Therefore, the prepared lithium-rich solution may be alkaline. If the addition method and sequence are not carefully considered, the calcium and magnesium ions in it can easily precipitate, which can significantly affect the quality of the prepared solution.

[0060] Furthermore, before configuring the lithium-rich liquid according to the addition amount of each raw material, it also includes: selecting a phase diagram that matches the lithium-rich liquid based on the various ions contained in the lithium-rich liquid; when the lithium-rich liquid is likely to precipitate, determining the restriction conditions for adding each raw material based on the phase diagram; determining the addition method of each raw material based on the restriction conditions; when the lithium-rich liquid is bound to precipitate, issuing a prompt message and / or solution.

[0061] Specifically, the adding method includes but is not limited to the adding temperature and the adding order.

[0062] When precipitation is inevitable in lithium-rich solutions, a prompt message and / or solution will be issued. This is because precipitation is related to changes in solubility. The prompt message will indicate the solution temperature at which precipitation will not occur, and after confirmation, the solution configuration will be adjusted by heating and cooling.

[0063] In addition, users can also observe the precipitation of the prepared solution through the turbidity meter data.

[0064] Can we add a specific phase diagram here and provide a detailed explanation of the supplemented phase diagram?

[0065] Corresponding to the configuration method of the lithium-rich solution, an embodiment of the present invention further provides a configuration of the lithium-rich solution. Figure 2 This is a schematic diagram of the structure of the lithium-rich solution configuration device, such as Figure 2 As shown, the lithium-rich solution configuration device includes an acquisition module 20 , a first processing module 21 , a second processing module 22 and a configuration module 23 .

[0066] Specifically, the second processing module 22 is used to: determine the charge demand of the main anions and the charge demand of the secondary anions in the lithium-rich solution according to the demand of each ion; determine the selection order of cations according to the demand of each ion in the order of the charge demand of the cations from low to high; for the main anions, obtain the raw materials corresponding to the main anions according to the selection order of cations and charge conservation; after obtaining the raw materials corresponding to the main anions, obtain the raw materials corresponding to the secondary anions according to the selection order of cations and charge conservation.

[0067] More specifically, the second processing module 22 is used to: obtain the current charge demand of the main anion; determine the total charge demand of the first unoccupied cation according to the selection order of the cations and the demand of each ion, and determine the demand of the first unoccupied cation according to the total charge demand of the first unoccupied cation and the charge of the first unoccupied cation; use the first unoccupied cation and the main anion to form a raw material required to configure the lithium-rich solution, determine the addition amount of the raw material according to the demand of the first unoccupied cation, and at the same time determine the occupied charge of the main anion in the raw material; subtract the occupied charge from the current charge demand to obtain the residual charge demand of the main anion, use the residual charge demand as the new current charge demand, and go to the step of obtaining the current charge demand of the main anion.

[0068] The anions in the lithium-rich solution include chloride ions and sulfate ions. The second processing module 22 is used to: determine the demand for chloride ions and the demand for sulfate ions based on the demand for each ion; compare the demand for chloride ions and the demand for sulfate ions; when the demand for chloride ions is greater than the demand for sulfate ions, use chloride ions as the main anion and sulfate ions as the secondary anion; when the demand for sulfate ions is greater than the demand for chloride ions, use sulfate ions as the main anion and chloride ions as the secondary anion.

[0069] When the main anion is sulfate ion, the configuration module 23 is specifically used to: use sulfuric acid as the last raw material to be added; after adding sulfuric acid, obtain the actual pH value of the lithium-rich solution; when the actual pH value reaches the pH value of the lithium-rich solution specified in the configuration requirements, stop adding sulfuric acid.

[0070] Furthermore, the configuration module 23 is also used to: select a phase diagram that matches the lithium-rich liquid based on the various ions contained in the lithium-rich liquid; when the lithium-rich liquid is likely to precipitate, determine the restriction conditions for adding each raw material based on the phase diagram; determine the method for adding each raw material based on the restriction conditions; when the lithium-rich liquid is bound to precipitate, issue a prompt message and / or solution.

[0071] The specific details of the above-mentioned lithium-rich solution configuration device can be understood by referring to the corresponding relevant descriptions and effects in the embodiment of the lithium-rich solution configuration method, and will not be repeated here.

[0072] The embodiment of the present invention further provides an electronic device, such as Figure 3 As shown, the electronic device may include a processor 31 and a memory 32 , wherein the processor 31 and the memory 32 may be connected via a bus or other means.

[0073] Furthermore, an embodiment of the present invention also provides a lithium-rich liquid configuration system, including a mixing kettle, multiple first silos, multiple second silos, an electronic balance, a feed pipe, a peristaltic pump and an electronic device of the third aspect; the mixing kettle is used to configure the lithium-rich liquid; each first silo is used to hold a solid raw material; the electronic balance is used to weigh the solid raw material in any first silo; one end of the feed pipe is connected to any first silo, and the other end is connected to the mixing kettle; each second silo is used to hold a liquid raw material; one end of the peristaltic pump is connected to any second silo, and the other end is connected to the mixing kettle; the electronic device is communicatively connected to the electronic balance, the feed pipe, the peristaltic pump and the mixing kettle.

[0074] Specifically, the solutes used to prepare the lithium-rich solution include: sodium chloride, potassium chloride, lithium chloride, calcium chloride, magnesium chloride, lithium sulfate, magnesium sulfate, calcium sulfate, potassium sulfate, sodium carbonate, sodium hydroxide, and sodium sulfate. All of these solutes are equipped with a vacuum-evacuable, transparent first silo with capacity markings, an oscillating discharge nozzle, an electronic balance accurate to 0.1g, and an oscillating feed pipe.

[0075] The solutions used to prepare the lithium-rich solution include: 98% concentrated sulfuric acid, 30% hydrochloric acid, 30% sodium hydroxide solution, 30% sodium carbonate solution, and deionized water. The first four solutions are each equipped with a peristaltic pump with a 0.1ml accuracy and a maximum flow rate of 50ml / min, and a transparent second silo with volume markings. The deionized water is filtered from municipal water, connected to the appropriate pipes and filters, and equipped with a flow meter with a 1ml accuracy.

[0076] The volume of the mixing kettle is 10L. It is also equipped with a pH meter, conductivity meter and turbidity meter, which can collect pH, conductivity and turbidity data in real time.

[0077] It should be noted that the configured lithium-rich solution is mainly used for experiments, so the configuration volume is at least 1L. The accuracy of the above-mentioned instrument has fully met the configuration requirements.

[0078] Furthermore, the lithium-rich liquid configuration system is equipped with an automatic cleaning system, and its water inlet is the mixing kettle outlet to achieve the purpose of thorough cleaning. After all the configured solutions have flowed out through the bottom outlet of the mixing kettle, the deionized water pipe is connected to the outlet to start the automatic cleaning program. The system will automatically seal all silo openings, pump in sufficient deionized water, and cooperate with the mixing paddle to clean the kettle and each pipe three times, and finally use negative pressure to suck away the residual cleaning water in the system. The entire cleaning process takes about 5 minutes. After all the configured solutions have flowed out through the bottom outlet of the mixing kettle, the total volume of the solution remaining in the equipment is about 2 ml. The user can judge whether cleaning is needed before proceeding to the next step of liquid preparation.

[0079] The processor 31 may be a central processing unit (CPU). The processor 31 may also be other general-purpose processors 31, digital signal processors 31 (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or a combination of the above chips.

[0080] The memory 32 is a non-transitory computer-readable storage medium that can be used to store non-transitory software programs, non-transitory computer executable programs and modules, such as the program instructions / modules corresponding to the configuration method of the lithium-rich solution in the embodiment of the present invention (for example, Figure 2 The processor 31 executes various functional applications and data processing of the processor 31 by running the non-transient software programs, instructions, and modules stored in the memory 32, thereby implementing the configuration method of the lithium-rich solution in the above-mentioned method embodiment.

[0081] The memory 32 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and application programs required for at least one function; the data storage area may store data created by the processor 31, etc. In addition, the memory 32 may include a high-speed random access memory 32, and may also include a non-volatile memory 32, such as at least one disk memory 32, a flash memory device, or other non-volatile solid-state memory 32. In some embodiments, the memory 32 may optionally include a memory 32 remotely located relative to the processor 31, and these remote memories 32 may be connected to the processor 31 via a network. Examples of the aforementioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0082] One or more modules are stored in the memory 32 and when executed by the processor 31, the execution is as follows: Figure 1 The configuration method of the lithium-rich solution in the illustrated embodiment.

[0083] For details of the above electronic equipment, please refer to Figures 1 to 2 The corresponding descriptions and effects in the embodiments shown can be understood and will not be repeated here.

[0084] Those skilled in the art will appreciate that all or part of the processes in the above-described embodiments can be implemented by instructing the relevant hardware through a computer program. The program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the above-described embodiments. The storage medium can be a magnetic disk, an optical disk, a read-only memory (ROM), a random access memory (RAM), a flash memory 32, a hard disk drive (HDD), or a solid-state drive (SSD). The storage medium can also include a combination of the above-mentioned types of memory 32.

[0085] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention. Such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A method for preparing a lithium-rich solution, characterized in that: include: Obtain the configuration requirements for lithium-rich solution; Determining the required amount of each ion in the lithium-rich solution according to the configuration requirements; Determining the amount of each raw material required to prepare the lithium-rich solution based on the required amount of each ion; Adding each raw material according to the addition amount of each raw material to obtain the lithium-rich solution; The step of determining the amount of each raw material required to prepare the lithium-rich solution according to the required amount of each ion includes: Determining the charge requirement of the main anion and the charge requirement of the secondary anion in the lithium-rich solution according to the requirement of each ion; Determining the order of selecting cations according to the demand for each ion and the order of the charge demand of the cations from low to high; For the main anion, according to the selection order of the cation and charge conservation, a raw material corresponding to the main anion is obtained; After obtaining the raw material corresponding to the main anion, for the secondary anion, according to the selection order of the cations and charge conservation, obtain the raw material corresponding to the secondary anion; The raw materials corresponding to the main anions are obtained according to the selection order of the cations and charge conservation, including: obtaining a current charge demand of the primary anion; Determining the total charge requirement of the first unoccupied cation according to the selection order of the cations and the required amount of each ion, and determining the required amount of the first unoccupied cation according to the total charge requirement of the first unoccupied cation and the charge of the first unoccupied cation; A raw material required for preparing the lithium-rich solution is prepared by using the first unoccupied cation and the main anion, an amount of the raw material to be added is determined according to the required amount of the first unoccupied cation, and an occupied charge amount of the main anion in the raw material is determined; The current charge demand is subtracted from the occupied charge to obtain the remaining charge demand of the main anion, the remaining charge demand is used as the new current charge demand, and the process proceeds to the step of obtaining the current charge demand of the main anion.

2. The method according to claim 1, wherein: The configuration requirements include: the concentration of some ions contained in the lithium-rich solution, the pH value of the lithium-rich solution, and the configuration amount of the lithium-rich solution; Alternatively, the configuration requirements include: the concentration of all ions contained in the lithium-rich solution and the configuration amount of the lithium-rich solution.

3. The method according to claim 1, characterized in that The anions in the lithium-rich solution include chloride ions and sulfate ions, and the step of determining the charge requirement of the main anions and the charge requirement of the secondary anions in the lithium-rich solution according to the required amount of each ion includes: Determining the demand for the chloride ions and the demand for the sulfate ions based on the demand for each ion; comparing the chloride ion demand with the sulfate ion demand; When the demand for chloride ions is greater than the demand for sulfate ions, chloride ions are used as the main anions and sulfate ions are used as the secondary anions; When the required amount of the sulfate ion is greater than the required amount of the chloride ion, the sulfate ion is used as the main anion and the chloride ion is used as the secondary anion.

4. The method according to claim 1, wherein When the main anion is sulfate ion, after obtaining the addition amount of all raw materials required to prepare the lithium-rich solution, the method further includes: Add sulfuric acid as the last raw material; After adding the sulfuric acid, obtaining an actual pH value of the lithium-rich solution; When the actual pH value reaches the pH value of the lithium-rich solution specified in the configuration requirements, the addition of sulfuric acid is stopped.

5. The method according to claim 1, wherein Before preparing the lithium-rich solution according to the addition amount of each raw material, the method further includes: Selecting a phase diagram matching the lithium-rich solution according to various ions contained in the lithium-rich solution; When the lithium-rich solution is likely to precipitate, determining the limiting conditions for adding each raw material according to the phase diagram; and determining the method for adding each raw material according to the limiting conditions; When the lithium-rich solution is bound to precipitate, a prompt message and / or solution is issued.

6. A device for preparing lithium-rich solution, characterized in that: include: Acquisition module, used to obtain the configuration requirements of lithium-rich solution; A first processing module, configured to determine the required amount of each ion in the lithium-rich solution according to the configuration requirements; A second processing module is used to determine the addition amount of each raw material required to prepare the lithium-rich solution according to the demand amount of each ion; A configuration module, configured to add each raw material according to the addition amount of each raw material to obtain the lithium-rich solution; The second processing module is specifically used to: determine the charge demand of the main anion and the charge demand of the secondary anion in the lithium-rich solution according to the demand of each ion; determine the selection order of cations according to the charge demand of cations from low to high according to the demand of each ion; for the main anion, according to the selection order of the cations and charge conservation, obtain the raw material corresponding to the main anion; after obtaining the raw material corresponding to the main anion, according to the selection order of the cations and charge conservation, obtain the raw material corresponding to the secondary anion for the secondary anion; The second processing module is specifically used to: obtain the current charge demand of the main anion; determine the total charge demand of the first unoccupied cation according to the selection order of the cations and the demand of each ion, and determine the demand of the first unoccupied cation according to the total charge demand of the first unoccupied cation and the charge of the first unoccupied cation; use the first unoccupied cation and the main anion to form a raw material required to configure the lithium-rich solution, determine the addition amount of the raw material according to the demand of the first unoccupied cation, and at the same time determine the occupied charge of the main anion in the raw material; use the current charge demand minus the occupied charge to obtain the residual charge demand of the main anion, use the residual charge demand as the new current charge demand, and go to the step of obtaining the current charge demand of the main anion.

7. An electronic device, characterized in that: include: A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the method for configuring the lithium-rich solution according to any one of claims 1 to 5 by executing the computer instructions.

8. A lithium-rich solution configuration system, characterized in that: include: Mixing kettle, used to prepare lithium-rich solution; A plurality of first silos, wherein each first silo is used to hold a type of solid raw material; An electronic balance, used for weighing the solid raw materials in each of the first silos; a material delivery pipe, one end of which is connected to any of the first material bins, and the other end of which is connected to the mixing kettle; A plurality of second silos, wherein each second silo is used to hold a liquid raw material; a peristaltic pump, one end of which is connected to any of the second silos, and the other end of which is connected to the mixing kettle; The electronic device according to claim 7 is communicatively connected to the electronic balance, the feed pipe, the peristaltic pump and the mixing kettle.

Images