CN216764349U - Get rid of automation equipment of calcium ion in lithium hydroxide solution - Google Patents
Get rid of automation equipment of calcium ion in lithium hydroxide solution Download PDFInfo
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- CN216764349U CN216764349U CN202220247861.XU CN202220247861U CN216764349U CN 216764349 U CN216764349 U CN 216764349U CN 202220247861 U CN202220247861 U CN 202220247861U CN 216764349 U CN216764349 U CN 216764349U
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- lithium hydroxide
- hydroxide solution
- calcium ion
- acid
- ion adsorption
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Abstract
The utility model provides an automatic device for removing calcium ions in a lithium hydroxide solution, which belongs to the technical field of calcium ion removal and comprises an acid storage tank, a water storage tank, an incoming lithium hydroxide solution storage tank and a calcium ion adsorption module, wherein an acid solution is stored in the acid storage tank and communicated with an inlet of the calcium ion adsorption module through an acid solution pump, purified water is stored in the water storage tank and communicated with an inlet of the calcium ion adsorption module through a water pump, and a lithium hydroxide solution is stored in the incoming lithium hydroxide solution storage tank and communicated with an inlet of the calcium ion adsorption module through a lithium hydroxide solution pump; the calcium ion adsorption module comprises 1 or more than 1 resin adsorption column, and the outlet of all the resin adsorption columns is communicated with the inlet of the calcium ion adsorption resin cabin after being assembled together; the utility model not only can remove calcium ions in the lithium hydroxide solution, but also can regenerate the calcium ion adsorption module by utilizing acid liquor and purified water.
Description
Technical Field
The utility model relates to the technical field of calcium ion removal, in particular to an automatic device for removing calcium ions in a lithium hydroxide solution.
Background
Lithium hydroxide is an inorganic substance, has the chemical formula of LiOH, is a white monoclinic fine crystal, has pungent taste, strong basicity and corrosivity, has the pH value of about 14 in a 1mol/L solution, and has the pKb = -0.04. Can absorb carbon dioxide and water in the air, is soluble in water, slightly soluble in ethanol and insoluble in diethyl ether. The relative density was 1.45, the melting point was 471 ℃ (anhydrous), and decomposition occurred at 925 ℃. Has two forms of anhydrate and monohydrate. As an important lithium salt product, the lithium salt is widely applied to the fields of lithium-based lubricating grease, alkaline storage batteries, metallurgy, atomic energy, chemical reagents, aerospace, national defense industry and the like.
The preparation process of lithium hydroxide usually adopts a sulfuric acid method, and needs to obtain refined lithium sulfate through the procedures of roasting, soaking, lithium precipitation, acidification, purification and the like, the refined lithium sulfate is added with sodium hydroxide to decompose lithium hydroxide, sodium sulfate is removed through freezing sodium precipitation, and sodium precipitation mother liquor is subjected to the procedures of primary evaporative crystallization, redissolution purification, secondary evaporative crystallization and the like, so that a lithium hydroxide product is finally obtained. In the process, the intermediate product lithium sulfate solution contains a large amount of calcium ions, so that the calcium ions of the final product exceed the standard, and the quality of the lithium hydroxide product is influenced finally.
Therefore, it is necessary to develop a device capable of removing calcium ions from a lithium hydroxide solution.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides an automatic apparatus for removing calcium ions from a lithium hydroxide solution, which not only can remove calcium ions from the lithium hydroxide solution, but also can regenerate a calcium ion adsorption module by using an acid solution and purified water.
In order to solve the technical problems, the utility model provides an automatic device for removing calcium ions in a lithium hydroxide solution, which comprises an acid storage tank, a water storage tank, an incoming lithium hydroxide solution storage tank and a calcium ion adsorption module, wherein an acid solution is stored in the acid storage tank and communicated with an inlet of the calcium ion adsorption module through an acid solution pump, purified water is stored in the water storage tank and communicated with an inlet of the calcium ion adsorption module through a water pump, and a lithium hydroxide solution is stored in the incoming lithium hydroxide solution storage tank and communicated with an inlet of the calcium ion adsorption module through a lithium hydroxide solution pump;
the calcium ion adsorption module comprises 1 or more than 1 resin adsorption column, the outlet of all the resin adsorption columns is communicated with the inlet of the calcium ion adsorption resin cabin after the resin adsorption columns are assembled together, all the resin adsorption columns are assembled together in a series or parallel mode, and the calcium ion adsorption resin cabin is filled with calcium ion adsorption resin.
Further, the purified water is pure water, or softened water, or condensed water.
Furthermore, a discharge calcium ion online detector is arranged on a discharge pipe of the calcium ion adsorption resin cabin.
Further, all the resin adsorption columns and the calcium ion adsorption resin cabin are hermetically arranged in the shell.
Further, an acid flowmeter is installed at the outlet of the acid solution pump.
Further, an outlet of the lithium hydroxide solution pump is provided with an incoming material flow meter.
Further, an incoming material calcium ion online detector is installed at an outlet of the lithium hydroxide solution pump in the downstream direction of the incoming material flow meter.
Further, a water flow meter is installed at the outlet of the water pump.
Furthermore, an acid liquid check valve is installed at an outlet of the acid solution pump in the downstream direction of the acid flow meter, and an acid liquid electromagnetic valve is installed at an inlet of the acid solution pump.
Further, a lithium hydroxide solution one-way valve is installed at an outlet of the lithium hydroxide solution pump, which is located in the downstream direction of the incoming calcium ion online detector, and a lithium hydroxide solution electromagnetic valve is installed at an inlet of the lithium hydroxide solution pump.
Furthermore, the outlet of the water pump positioned in the downstream direction of the water flow meter is provided with a water liquid one-way valve, and the inlet of the water pump is provided with a water liquid electromagnetic valve.
The technical scheme of the utility model has the following beneficial effects:
1. the method adopts the calcium ion adsorption resin (calcium ion selective ion exchange resin) to remove calcium ions in the lithium hydroxide solution, and has the advantages of high removal rate, no reduction of the concentration of lithium hydroxide and the like.
2. The utility model adopts the incoming calcium ion on-line detector and the outgoing calcium ion on-line detector to detect the calcium ion concentration in real time, and the PLC program is used for controlling and adjusting the operation of the device, thus the intelligent degree is high.
3. According to the utility model, the calcium ion concentration data in the incoming material detected in real time is utilized to adjust the adsorption feeding flow in real time, so that the optimal flow required by the operation of the calcium ion adsorption resin is achieved, and the effective adsorption capacity of the calcium ion adsorption resin is improved.
4. The utility model improves the effective adsorption capacity of the calcium ion adsorption resin, exerts the adsorption and energy absorption of the calcium ion adsorption resin to the maximum, namely reduces the regeneration frequency of the calcium ion adsorption resin and reduces the consumption of regeneration medicaments (acid solution and purified water).
5. The utility model reduces the regeneration frequency of the calcium ion adsorption resin and the consumption of the regenerated medicament, namely the waste of the medicament and the generation amount of sewage; the device is more environment-friendly.
Drawings
FIG. 1 is a schematic structural view of the present invention;
reference numerals:
an acid storage tank 1; a water storage tank 2; an incoming lithium hydroxide solution storage tank 3; an acid solution pump 4; a water pump 5; a lithium hydroxide solution pump 6; a resin adsorption column 7; a calcium ion adsorption resin chamber 8; a discharged calcium ion online detector 9; an acid flow meter 10; an incoming material flow meter 11; an incoming calcium ion online detector 12; a water flow meter 13; an acid check valve 14; an acid liquor electromagnetic valve 15; a lithium hydroxide solution check valve 16; a lithium hydroxide solution solenoid valve 17; a water liquid one-way valve 18; a water-liquid electromagnetic valve 19.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the utility model, are within the scope of the utility model.
As shown in fig. 1: an automatic device for removing calcium ions in a lithium hydroxide solution comprises an acid storage tank, a water storage tank, an incoming lithium hydroxide solution storage tank and a calcium ion adsorption module, wherein an acid solution is stored in the acid storage tank and communicated with an inlet of the calcium ion adsorption module through an acid solution pump, purified water is stored in the water storage tank and communicated with the inlet of the calcium ion adsorption module through a water pump, and a lithium hydroxide solution is stored in the incoming lithium hydroxide solution storage tank and communicated with the inlet of the calcium ion adsorption module through a lithium hydroxide solution pump;
specifically, as shown in fig. 1, an automatic device for removing calcium ions from a lithium hydroxide solution comprises an acid storage tank 1, a water storage tank 2, an incoming lithium hydroxide solution storage tank 3 and a calcium ion adsorption module, wherein an acid solution is stored in the acid storage tank 1 and communicated with an inlet of the calcium ion adsorption module through an acid solution pump 4, purified water is stored in the water storage tank 2 and communicated with an inlet of the calcium ion adsorption module through a water pump 5, and a lithium hydroxide solution is stored in the incoming lithium hydroxide solution storage tank 3 and communicated with an inlet of the calcium ion adsorption module through a lithium hydroxide solution pump 6;
the calcium ion adsorption module comprises 1 or more than 1 resin adsorption column 7, and calcium ion adsorption resin is filled in the calcium ion adsorption resin cabin 8. In this embodiment, the calcium ion adsorption module includes 1 resin adsorption column 7, and obviously, there may be more resin adsorption columns 7, for example, 2, 3, etc., all the resin adsorption columns 7 are assembled together, and then the outlets of the resin adsorption columns are communicated with the inlet of the calcium ion adsorption resin chamber 8, and all the resin adsorption columns 7 are assembled together in series or in parallel.
According to an embodiment of the present invention, the purified water is pure water, and obviously, the purified water is not limited to pure water, and may be of other types, such as softened water, condensed water, or the like.
According to one embodiment of the present invention, as shown in fig. 1, the discharge pipe of the calcium ion adsorption resin chamber 8 is provided with a discharge calcium ion online detector 9. In this embodiment, the discharged calcium ion online detector 9 can detect the concentration of calcium ions in the discharged lithium hydroxide solution in real time, and acquire data into the PLC.
According to one embodiment of the present invention, as shown in fig. 1, all of the resin adsorption column 7 and the calcium ion adsorption resin compartment 8 are hermetically installed in the housing.
According to one embodiment of the present invention, as shown in fig. 1, the outlet of the acid solution pump 4 is installed with an acid flow meter 10. In this embodiment, the acid flow meter 10 can be used to detect the flow rate of the acid solution, and the PLC program can adjust the cleaning time and the regeneration time of the resin adsorption column and the amount of the acid to be added according to the loading amount and the loading size of the calcium ion adsorption resin.
According to one embodiment of the present invention, as shown in fig. 1, the outlet of the lithium hydroxide solution pump 6 is equipped with an incoming flow meter 11. In this embodiment, the incoming material flow meter 11 is used to detect the flow rate of the incoming lithium hydroxide solution and collect the data into the PLC.
According to one embodiment of the present invention, as shown in fig. 1, an incoming calcium ion online detector 12 is installed at the outlet of the lithium hydroxide solution pump 6 in the downstream direction of the incoming flow meter 11. In this embodiment, the incoming calcium ion online detector 12 can detect the concentration of calcium ions in the incoming lithium hydroxide solution in real time, and collect data into the PLC; the running flow of the inlet of the calcium ion adsorption module is adjusted by utilizing the calcium ion concentration detected in real time so as to achieve the optimal adsorption flow rate; calculating the accumulated amount of calcium ions in the incoming liquid in real time by utilizing a PLC (programmable logic controller) program to adjust the running time of the resin adsorption column; the online calcium ion detector of the incoming material is compared with the detection data of the incoming material flowmeter arranged at the outlet, and the PLC judges the detection data to determine the switching time of the resin adsorption column.
According to one embodiment of the utility model, as shown in fig. 1, the outlet of the water pump 5 is fitted with a water flow meter 13. In this embodiment, the water flow meter 13 is configured to detect the flow rate of the purified water injected into the calcium ion adsorption module in real time and determine the operation time.
According to one embodiment of the present invention, as shown in fig. 1, an acid liquid check valve 14 is installed at an outlet of the acid solution pump 4 located in a downstream direction of the acid flow meter 10, and an acid liquid solenoid valve 15 is installed at an inlet of the acid solution pump 4. In this embodiment, the acid solution one-way valve 14 only allows the acid solution to be injected into the calcium ion adsorption module, and prevents the counter flow, and the acid solution electromagnetic valve 15 can control whether the acid solution is injected into the calcium ion adsorption module or not by the PLC.
According to one embodiment of the present invention, as shown in fig. 1, a lithium hydroxide solution check valve 16 is installed at the outlet of the lithium hydroxide solution pump 6 located downstream of the incoming calcium ion on-line detector 12, and a lithium hydroxide solution solenoid valve 17 is installed at the inlet of the lithium hydroxide solution pump 6. In this embodiment, the lithium hydroxide solution check valve 16 only allows the lithium hydroxide solution to be injected into the calcium ion adsorption module and prevents the reverse flow, and the lithium hydroxide solution solenoid valve 17 can control whether the lithium hydroxide solution is injected into the calcium ion adsorption module or not by the PLC.
According to one embodiment of the present invention, as shown in fig. 1, an outlet of the water pump 5 located in a downstream direction of the water flow meter 13 is installed with an aqueous liquid check valve 18, and an inlet of the water pump 5 is installed with an aqueous liquid solenoid valve 19. In this embodiment, the water check valve 18 only allows the purified water to be injected into the calcium ion adsorption module and prevents the reverse flow, and the water solenoid valve 19 can control whether the purified water is injected into the calcium ion adsorption module by the PLC.
The working method (or working principle) of the utility model is as follows:
when removing calcium ions in an incoming material lithium hydroxide solution, the PLC controls the water solution electromagnetic valve and the acid liquor electromagnetic valve to be in a shutdown state, simultaneously opens the lithium hydroxide solution electromagnetic valve and the lithium hydroxide solution pump, and utilizes the calcium ion adsorption module to adsorb calcium ions in the lithium hydroxide solution, so that the calcium ions in the lithium hydroxide solution are removed; in the using process, the concentration of calcium ions in the incoming material lithium hydroxide solution is detected in real time according to an incoming material calcium ion online detector, and data are acquired into a PLC; the running flow of the inlet of the calcium ion adsorption module is adjusted by utilizing the calcium ion concentration detected in real time so as to achieve the optimal adsorption flow rate; calculating the accumulated amount of calcium ions in the incoming liquid in real time by utilizing a PLC (programmable logic controller) program to adjust the running time of the resin adsorption column; the online calcium ion detector of the incoming material is compared with the detection data of the incoming material flowmeter arranged at the outlet, and the PLC judges the detection data to determine the switching time of the resin adsorption column. The utility model not only can remove calcium ions in the lithium hydroxide solution, but also can regenerate the calcium ion adsorption module by utilizing acid liquor and purified water.
In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly attached, detachably attached, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate agent, and may be used for communicating the inside of two elements or interacting relation of two elements, unless otherwise specifically defined, and the specific meaning of the terms in the present invention can be understood by those skilled in the art according to specific situations.
While the foregoing is directed to the preferred embodiment of the present invention, it will be appreciated by those skilled in the art that various changes and modifications may be made therein without departing from the principles of the utility model as set forth in the appended claims.
Claims (10)
1. An automatic device for removing calcium ions in a lithium hydroxide solution is characterized in that: the device comprises an acid storage tank (1), a water storage tank (2), an incoming material lithium hydroxide solution storage tank (3) and a calcium ion adsorption module, wherein an acid solution is stored in the acid storage tank (1) and communicated with an inlet of the calcium ion adsorption module through an acid solution pump (4), purified water is stored in the water storage tank (2) and communicated with the inlet of the calcium ion adsorption module through a water pump (5), and a lithium hydroxide solution is stored in the incoming material lithium hydroxide solution storage tank (3) and communicated with the inlet of the calcium ion adsorption module through a lithium hydroxide solution pump (6);
the calcium ion adsorption module comprises 1 or more than 1 resin adsorption column (7), the outlet of all the resin adsorption columns (7) is communicated with the inlet of the calcium ion adsorption resin cabin (8) after being assembled together, all the resin adsorption columns (7) are assembled together in a series or parallel mode, and the calcium ion adsorption resin cabin (8) is filled with calcium ion adsorption resin.
2. The automated apparatus for removing calcium ions from a lithium hydroxide solution according to claim 1, wherein: and a discharge calcium ion online detector (9) is arranged on a discharge pipe of the calcium ion adsorption resin cabin (8).
3. The automated apparatus for removing calcium ions from a lithium hydroxide solution according to claim 1, wherein: all the resin adsorption columns (7) and the calcium ion adsorption resin chambers (8) are hermetically arranged in the shell.
4. The automated apparatus for removing calcium ions from a lithium hydroxide solution according to claim 1, wherein: an acid flowmeter (10) is arranged at the outlet of the acid solution pump (4).
5. The automated apparatus for removing calcium ions from a lithium hydroxide solution according to claim 1, wherein: and an incoming material flow meter (11) is arranged at the outlet of the lithium hydroxide solution pump (6).
6. The automated apparatus for removing calcium ions from a lithium hydroxide solution according to claim 5, wherein: an incoming calcium ion online detector (12) is arranged at the outlet of the lithium hydroxide solution pump (6) in the downstream direction of the incoming flow meter (11).
7. The automated apparatus for removing calcium ions from a lithium hydroxide solution according to claim 1, wherein: and a water flow meter (13) is installed at the outlet of the water pump (5).
8. The automated apparatus for removing calcium ions from a lithium hydroxide solution according to claim 4, wherein: an acid liquid one-way valve (14) is installed at the outlet of the acid solution pump (4) in the downstream direction of the acid flow meter (10), and an acid liquid electromagnetic valve (15) is installed at the inlet of the acid solution pump (4).
9. The automated apparatus for removing calcium ions from a lithium hydroxide solution according to claim 6, wherein: a lithium hydroxide solution check valve (16) is arranged at the outlet of the lithium hydroxide solution pump (6) positioned in the downstream direction of the incoming material calcium ion online detector (12), and a lithium hydroxide solution electromagnetic valve (17) is arranged at the inlet of the lithium hydroxide solution pump (6).
10. The automated apparatus for removing calcium ions from a lithium hydroxide solution according to claim 7, wherein: and an aqueous liquid one-way valve (18) is arranged at the outlet of the water pump (5) in the downstream direction of the water flow meter (13), and an aqueous liquid electromagnetic valve (19) is arranged at the inlet of the water pump (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220247861.XU CN216764349U (en) | 2022-01-31 | 2022-01-31 | Get rid of automation equipment of calcium ion in lithium hydroxide solution |
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| CN202220247861.XU CN216764349U (en) | 2022-01-31 | 2022-01-31 | Get rid of automation equipment of calcium ion in lithium hydroxide solution |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115161416A (en) * | 2022-06-25 | 2022-10-11 | 新疆冠农果茸股份有限公司 | Molasses chemical calcium removal system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115161416A (en) * | 2022-06-25 | 2022-10-11 | 新疆冠农果茸股份有限公司 | Molasses chemical calcium removal system and method |
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