CN220432359U - Sodium hypophosphite solution continuous treatment device - Google Patents
Sodium hypophosphite solution continuous treatment device Download PDFInfo
- Publication number
- CN220432359U CN220432359U CN202321997160.9U CN202321997160U CN220432359U CN 220432359 U CN220432359 U CN 220432359U CN 202321997160 U CN202321997160 U CN 202321997160U CN 220432359 U CN220432359 U CN 220432359U
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- CN
- China
- Prior art keywords
- pipeline
- treatment
- sodium hypophosphite
- mixer
- hypophosphite solution
- Prior art date
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- KWSLGOVYXMQPPX-UHFFFAOYSA-N 5-[3-(trifluoromethyl)phenyl]-2h-tetrazole Chemical compound FC(F)(F)C1=CC=CC(C2=NNN=N2)=C1 KWSLGOVYXMQPPX-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 229910001379 sodium hypophosphite Inorganic materials 0.000 title claims abstract description 48
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 13
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 239000003513 alkali Substances 0.000 claims abstract description 8
- 229910001378 barium hypophosphite Inorganic materials 0.000 claims abstract description 7
- 230000001105 regulatory effect Effects 0.000 claims description 15
- 238000010129 solution processing Methods 0.000 claims 1
- 238000000746 purification Methods 0.000 abstract description 2
- 238000010924 continuous production Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 37
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 8
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 6
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 4
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 description 3
- 229910001424 calcium ion Inorganic materials 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 229910001422 barium ion Inorganic materials 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
The utility model discloses a sodium hypophosphite solution continuous treatment device, which comprises: the device comprises a first treatment kettle, a second treatment kettle, a third treatment kettle, a first pipeline mixer, a second pipeline mixer and a third pipeline mixer; the feed inlet end of the first pipeline mixer is connected with a sodium hypophosphite solution feed pipeline and a carbon dioxide gas feed pipeline, and the discharge outlet end of the first pipeline mixer is connected with the first treatment kettle; the feed inlet end of the second pipeline mixer is connected with the discharge pipeline of the first treatment kettle and the liquid alkali feed pipeline, and the discharge port end of the second pipeline mixer is connected with the second treatment kettle; the feed inlet end of the third pipeline mixer is connected with the discharge pipeline of the second treatment kettle and the barium hypophosphite solution feed pipe, and the discharge port end is connected with the third treatment kettle. The utility model realizes continuous production of the sodium hypophosphite solution in three treatment kettles in sequence, effectively improves the purification efficiency of the sodium hypophosphite solution, reduces the treatment time and has strong practicability.
Description
Technical Field
The utility model relates to the field of chemical equipment, in particular to a sodium hypophosphite solution continuous treatment device.
Background
Sodium hypophosphite solutions typically contain calcium and sulfate ions. Therefore, in the production of sodium hypophosphite products, it is generally necessary to remove calcium and sulfate ions from the system prior to crystallization in order to improve the quality of the sodium hypophosphite product.
In the prior art, related operations are mostly carried out by adopting a single independent reaction kettle, and the defects of complex operation process, long treatment time, complex process control, poor removal effect and the like exist, so that the method is not suitable for continuous operations.
Disclosure of Invention
The utility model solves the problems in the aspects of impurity removal of sodium hypophosphite solution in the prior art by providing a continuous treatment device for sodium hypophosphite solution.
In order to solve the technical problems, the utility model provides a sodium hypophosphite solution continuous treatment device, which comprises: the first treatment kettle, the second treatment kettle and the third treatment kettle; the first pipeline mixer, the second pipeline mixer and the third pipeline mixer are respectively arranged outside the first treatment kettle, the second treatment kettle and the third treatment kettle;
the feed inlet end of the first pipeline mixer is connected with a sodium hypophosphite solution feed pipeline and a carbon dioxide gas feed pipeline, and the discharge outlet end of the first pipeline mixer is connected with the first treatment kettle;
the feed inlet end of the second pipeline mixer is connected with the discharge pipeline of the first treatment kettle and the liquid alkali feed pipeline, and the discharge port end of the second pipeline mixer is connected with the second treatment kettle;
the feed inlet end of the third pipeline mixer is connected with the discharge pipeline of the second treatment kettle and the barium hypophosphite solution feed pipe, and the discharge outlet end of the third pipeline mixer is connected with the third treatment kettle;
and the discharge port ends of the first pipeline mixer and the second pipeline mixer are respectively provided with a first pH meter and a second pH meter.
In a preferred embodiment of the present utility model, the first, second and third pipe mixers are horizontally arranged.
In a preferred embodiment of the present utility model, the carbon dioxide gas feed line has a first feed regulating valve thereon, and the liquid caustic feed line has a second feed regulating valve thereon.
In a preferred embodiment of the present utility model, the processing apparatus further includes a program controller, the first feed adjusting valve and the first pH meter are connected in linkage control through the program controller, and the second feed adjusting valve and the second pH meter are connected in linkage control through the program controller.
In a preferred embodiment of the present utility model, a first discharge pump is installed on the discharge pipe of the first treatment tank.
In a preferred embodiment of the present utility model, the outlet of the first discharging pump is further provided with a tee, and is connected to the second pipeline mixer and the first treatment tank through the tee, respectively.
In a preferred embodiment of the present utility model, a second discharge pump is installed on the discharge pipe of the second treatment tank.
In a preferred embodiment of the present utility model, the outlet of the second discharge pump is further provided with a tee, and is connected to the third pipeline mixer and the second treatment tank through the tee, respectively.
The beneficial effects of the utility model are as follows: according to the sodium hypophosphite solution continuous treatment device, through the design of the first pipeline mixer, the second pipeline mixer and the third pipeline mixer and the program control connection of the first feeding regulating valve, the first pH meter, the second feeding regulating valve and the second pH meter, the sodium hypophosphite solution is continuously treated in three treatment kettles in sequence, the purification efficiency of the sodium hypophosphite solution is effectively improved, the treatment time is reduced, and the practicability is strong.
Drawings
FIG. 1 is a schematic perspective view showing a sodium hypophosphite solution continuous treatment apparatus according to a preferred embodiment of the present utility model;
the components in the drawings are marked as follows:
10. first treatment tank, 20, first pipe mixer, 30, second treatment tank, 40, second pipe mixer, 50, third treatment tank, 60, third pipe mixer, 11, feed pump, 12, first discharge pump, 21, first feed adjustment valve, 22, first pH meter, 31, second discharge pump, 41, second feed adjustment valve, 42, second pH meter, 51, third discharge pump, 61, third feed adjustment valve, 62, third pH.
Detailed Description
The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model.
Referring to fig. 1, an embodiment of the present utility model includes:
the utility model discloses a sodium hypophosphite solution continuous treatment device which comprises a first treatment kettle 10, wherein a first pipeline mixer 20 which is horizontally arranged is arranged outside the first treatment kettle 10. The feed inlet end of the first pipe mixer 20 is connected with a sodium hypophosphite solution feed pipe and a carbon dioxide gas feed pipe. Wherein, install charge pump 11 on the sodium hypophosphite solution feed pipe, there is first feed regulating valve 21 on the carbon dioxide gas feed pipe for the flow of regulation carbon dioxide gas. The discharge port end of the first pipeline mixer 20 is connected with the first treatment kettle 10, a first pH meter 22 is arranged at a position, close to the discharge port end, of the first pipeline mixer 20, and the first feeding regulating valve 21 and the first pH meter 22 are connected through a Programmable Logic Controller (PLC) linkage control. The value of the first pH meter 22 is set to be 6-7 in the program controller, and the plc adjusts the opening of the first feed adjusting valve 21 according to the real value of the first pH meter 22 measured in real time, thereby adjusting the pH of the sodium hypophosphite solution in the first pipe mixer 20 to be weak acid, which is beneficial to generating carbonate ions. By designing the first pipe mixer 20 horizontally arranged, the contact time of the sodium hypophosphite solution and the carbon dioxide gas can be prolonged, and the dissolution rate of the carbon dioxide can be improved, so that the content of carbonate ions in the sodium hypophosphite solution can be improved.
The second treatment tank 30 is provided with a horizontally placed second pipe mixer 40 at the outside. The feed inlet end of the second pipe mixer 40 is connected with the discharge pipe and the liquid alkali feed pipe of the first treatment kettle 10. The discharging pipeline of the first treatment kettle 10 is further provided with a first discharging pump 12, and a discharging port of the first discharging pump 12 is respectively connected with the second pipeline mixer 40 and the first treatment kettle 10 through a three-way pipe, and is used for conveying a part of sodium hypophosphite solution mixed and dissolved with carbon dioxide by the first treatment kettle to the second pipeline mixer 40, and the rest part of sodium hypophosphite solution flows back to the first treatment kettle 10. The liquid alkali feeding pipeline is also provided with a second feeding regulating valve 41 for regulating the flow of liquid alkali. The discharge port end of the second pipeline mixer 40 is connected with the second treatment kettle 30, a second pH meter 42 is installed at a position of the second pipeline mixer 40 close to the discharge port end of the second pipeline mixer, and the second feeding regulating valve 41 and the second pH meter 42 are connected through a PLC linkage control. The value of the second pH meter 42 is set to 8-10 in the program controller, and the plc adjusts the opening of the second feeding adjusting valve 41 according to the actual value of the second pH meter 42 measured in real time, so as to adjust the pH value of the sodium hypophosphite solution in the second pipe mixer 40 to be alkaline, so that the purpose of removing the calcium ions in the sodium hypophosphite solution is achieved by fully generating calcium carbonate precipitation after the carbonate ions and the impurity calcium ions are stirred in the second treatment kettle 30. By the design of the horizontally arranged second pipe mixer 40, the adjustment time of the pH can be prolonged, so that the pH of the mixed solution can be adjusted to be within a desired range before entering the second treatment tank 30.
The third treatment kettle 50 is provided with a third pipeline mixer 60 which is horizontally arranged outside. The feed inlet end of the third pipe mixer 60 is connected with the discharge pipe of the second treatment kettle 30 and the barium hypophosphite solution feed pipe. The second discharge pump 31 is further installed on the discharge pipe of the second treatment kettle 30, and a discharge port of the second discharge pump 31 is connected with the third pipe mixer 60 and the second treatment kettle 30 through a three-way pipe, so that a part of sodium hypophosphite solution in the second treatment kettle is conveyed to the third pipe mixer 60, and the rest part of sodium hypophosphite solution is refluxed to the second treatment kettle 30. And a third feeding regulating valve 61 is also arranged on the barium hypophosphite solution feeding pipeline and is used for regulating the flow of the barium hypophosphite solution. The discharge port end of the third pipe mixer 60 is connected with the third treatment kettle 50, and a third pH meter 62 is installed at a position of the third pipe mixer 60 near the discharge port end thereof. Through the design of the third pipeline mixer 60 which is horizontally arranged, the barium sulfate can be fully reacted to generate the barium sulfate after entering the third treatment kettle, so that the removal effect of sulfate ions in the sodium hypophosphite solution is improved.
The discharge port of the third treatment kettle 50 can be connected to the subsequent process through a pipeline with a third discharge pump 51, calcium carbonate and barium sulfate are removed by filtration, so that a purified sodium hypophosphite solution is obtained, and the purified sodium hypophosphite solution is used for producing sodium hypophosphite, thereby realizing continuous operation.
The working principle or process of the utility model is as follows:
the sodium hypophosphite solution to be purified and the carbon dioxide gas enter a first pipeline mixer 20 for mixing, then enter a first treatment kettle 10, and the carbon dioxide gas is fully dissolved in the first treatment kettle 10 to form carbonate ions;
the sodium hypophosphite solution dissolved with carbonate ions and liquid alkali (such as sodium hydroxide solution) enter a second pipeline mixer 40 for mixing, the pH value of the mixed liquid is regulated to be 8-10 by a second feeding regulating valve 41, then the mixed liquid enters a second treatment kettle 30, and calcium ions and carbonate ions fully react under the stirring action in the second treatment kettle 30 to generate calcium carbonate precipitates;
the sodium hypophosphite solution and the barium hypophosphite solution flowing out of the second treatment kettle 30 enter a third treatment kettle 50 through a third pipeline mixer 60, and barium ions and sulfate ions fully react under the stirring action in the third treatment kettle 50 to generate barium sulfate precipitation;
the sodium hypophosphite solution in the third treatment kettle 50 continues to flow into the subsequent process, and the precipitate generated in the steps is removed through filtration, so that the purified sodium hypophosphite solution is obtained and is used for production, and continuous operation is realized.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (8)
1. A sodium hypophosphite solution continuous treatment apparatus, characterized by comprising: the first treatment kettle, the second treatment kettle and the third treatment kettle; the first pipeline mixer, the second pipeline mixer and the third pipeline mixer are respectively arranged outside the first treatment kettle, the second treatment kettle and the third treatment kettle;
the feed inlet end of the first pipeline mixer is connected with a sodium hypophosphite solution feed pipeline and a carbon dioxide gas feed pipeline, and the discharge outlet end of the first pipeline mixer is connected with the first treatment kettle;
the feed inlet end of the second pipeline mixer is connected with the discharge pipeline of the first treatment kettle and the liquid alkali feed pipeline, and the discharge port end of the second pipeline mixer is connected with the second treatment kettle;
the feed inlet end of the third pipeline mixer is connected with the discharge pipeline of the second treatment kettle and the barium hypophosphite solution feed pipe, and the discharge outlet end of the third pipeline mixer is connected with the third treatment kettle;
and the discharge port ends of the first pipeline mixer and the second pipeline mixer are respectively provided with a first pH meter and a second pH meter.
2. The continuous sodium hypophosphite solution processing apparatus according to claim 1, wherein said first pipe mixer, second pipe mixer and third pipe mixer are horizontally arranged.
3. The continuous sodium hypophosphite solution treatment apparatus according to claim 1, wherein the carbon dioxide gas feed pipe is provided with a first feed regulating valve, and the liquid alkali feed pipe is provided with a second feed regulating valve.
4. The continuous sodium hypophosphite solution treatment device according to claim 3, further comprising a program controller, wherein the first feed adjusting valve and the first pH meter are in linkage control connection through the program controller, and the second feed adjusting valve and the second pH meter are in linkage control connection through the program controller.
5. The continuous sodium hypophosphite solution treatment apparatus according to claim 4, wherein the first discharge pump is installed on the discharge pipe of the first treatment tank.
6. The continuous sodium hypophosphite solution treatment device according to claim 5, wherein the outlet of the first discharge pump is further provided with a three-way pipe, and the outlet of the first discharge pump is connected with the second pipeline mixer and the first treatment kettle respectively through the three-way pipe.
7. The continuous sodium hypophosphite solution treatment device according to claim 4, wherein a second discharge pump is installed on the discharge pipeline of the second treatment kettle.
8. The continuous sodium hypophosphite solution treatment device according to claim 7, wherein the outlet of the second discharge pump is further provided with a three-way pipe, and the outlet of the second discharge pump is connected with the third pipeline mixer and the second treatment kettle respectively through the three-way pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321997160.9U CN220432359U (en) | 2023-07-27 | 2023-07-27 | Sodium hypophosphite solution continuous treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321997160.9U CN220432359U (en) | 2023-07-27 | 2023-07-27 | Sodium hypophosphite solution continuous treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220432359U true CN220432359U (en) | 2024-02-02 |
Family
ID=89687655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321997160.9U Active CN220432359U (en) | 2023-07-27 | 2023-07-27 | Sodium hypophosphite solution continuous treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220432359U (en) |
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2023
- 2023-07-27 CN CN202321997160.9U patent/CN220432359U/en active Active
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