CN112138461A - Production device of dialkyl hypophosphorous acid - Google Patents
Production device of dialkyl hypophosphorous acid Download PDFInfo
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- CN112138461A CN112138461A CN201910569579.6A CN201910569579A CN112138461A CN 112138461 A CN112138461 A CN 112138461A CN 201910569579 A CN201910569579 A CN 201910569579A CN 112138461 A CN112138461 A CN 112138461A
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- filter screen
- mixing chamber
- matching rod
- electromagnet
- producing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
Abstract
The invention discloses a production device of dialkyl hypophosphorous acid, and relates to the technical field of chemical equipment. The production device of dialkyl hypophosphorous acid comprises a mixing chamber, a stirring chamber and a stirring device, wherein a space is provided for mixing mother liquor and additives, the top of the mixing chamber is provided with an opening, the bottom of the mixing chamber is provided with a liquid outlet hole, and a mixing blade for stirring mixed solution is arranged in the mixing chamber; a cover for closing the opening at the top of the mixing chamber; the filter screen is supported on the inner wall of the mixing chamber, positioned above the liquid outlet hole and used for supporting effective precipitates separated out from the mixed solution; and one end of the matching rod is connected with the filter screen, the other end of the matching rod is controlled by a driving device, and the driving device drives the matching rod to move along the vertical direction and drive the filtration rate net to rise along the vertical direction to be separated from the liquid level of the mixed solution.
Description
Technical Field
The invention relates to the technical field of chemical equipment, in particular to a production device of dialkyl hypophosphorous acid.
Background
During the preparation of dialkylphosphinic acids, the mother liquor remaining from the reaction remains, the components of the mother liquor being an organic phase and an aqueous phase, and there being effective mixtures which can continue to precipitate. The aqueous phase can be removed by vacuum stripping, whereas in the prior art, the remaining mother liquor is typically discarded, creating waste.
If the remaining solution is used as the starting material or mother liquor for the re-extraction of the precipitate, at least a solid or liquid containing dialkylphosphinic acid and/or alkali metal salt thereof and a solid or liquid containing a metal ion compound are added to the solution, and the above two additives are mixed with the mother liquor and stirred to obtain an effective precipitate.
The precipitate is difficult to separate from the solution.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a production device of dialkyl hypophosphorous acid, which can effectively separate and collect the precipitate separated out from the mixed solution.
In order to solve the above technical problems, the present invention provides an apparatus for producing dialkylphosphinic acid, comprising,
the mixing chamber is used for providing a space for mixing mother liquor and additives, an opening is formed in the top of the mixing chamber, a liquid outlet hole is formed in the bottom of the mixing chamber, and a mixing blade used for stirring mixed solution is arranged in the mixing chamber;
a cover for closing the opening at the top of the mixing chamber;
the filter screen is supported on the inner wall of the mixing chamber, positioned above the liquid outlet hole and used for supporting effective precipitates separated out from the mixed solution;
and one end of the matching rod is connected with the filter screen, the other end of the matching rod is controlled by a driving device, and the driving device drives the matching rod to move along the vertical direction and drive the filtration rate net to rise along the vertical direction to be separated from the liquid level of the mixed solution.
The filter screen can be detachably connected to the matching rod.
A support platform is protruded on the inner wall of the mixing chamber, and the filter screen is supported on the support platform.
The filter screen comprises a frame, the frame is made of magnetic materials, and a first electromagnet used for supporting the frame is arranged on the supporting table.
The end part of the matching rod is provided with a second electromagnet, the filter screen is provided with a connecting seat for the matching rod to be inserted into, and the connecting seat is made of magnetic materials.
The connecting seat is provided with a slot for the second electromagnet to insert into, and a travel switch is arranged in the slot.
The first electromagnet is controlled by a travel switch, and when the matching rod enters the slot to trigger the travel switch, the first electromagnet is powered off and fails.
The second electromagnet is controlled by a travel switch, and when the matching rod enters the slot to trigger the travel switch, the second electromagnet is electrified to start and adsorb the filter screen.
Drive arrangement is the filter screen cylinder, the filter screen cylinder is located the closing cap top, the cooperation pole passes the closing cap and with closing cap sliding connection.
The invention has the beneficial effects that:
the matching rod is inserted into the mixed solution, the stirring and mixing effect of the mixing blade can be influenced, and therefore when the mixed solution is stirred and mixed, the matching rod is controlled to ascend through the filter screen cylinder to be separated from the liquid level of the mixed solution. After the solution is kept stand for a period of time, the precipitate is separated out and accumulated on the filter screen, at the moment, the matching rod is descended to touch the travel switch, so that the filter screen is adsorbed on the matching rod, and meanwhile, the first electromagnet is invalid, so that the filter screen is easier to separate from the liquid level of the solution and the solution along the vertical direction.
Drawings
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a schematic view showing the structure of a filter screen;
fig. 3 is a schematic block diagram illustrating the operating principle of the travel switch.
Wherein: 1. a mixing chamber; 11. sealing the cover; 12. a liquid outlet hole; 13. a mixing blade; 14. a support table; 15. a first electromagnet; 16. a metering pump; 17. a vacuum pump; 17. a flexible tube for venting; 2. a recovery chamber; 3. a filter screen; 31. a connecting seat; 311. a slot; 32. a travel switch; 33. a mating rod; 331. a second electromagnet; 34. a filter screen cylinder; 35. a frame; 4. an electric heating block.
Detailed Description
In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Example 1:
the structure of the dialkyl hypophosphorous acid production device provided by the embodiment is shown in the figure.
The production device of dialkyl hypophosphorous acid comprises:
the mixing chamber 1 is used for providing a space for mixing mother liquor and additives, the top of the mixing chamber 1 is provided with an opening, the bottom of the mixing chamber 1 is provided with a liquid outlet hole 12, and a mixing blade 13 used for stirring mixed solution is arranged in the mixing chamber 1;
a cover 11 closing an opening at the top of the mixing chamber 1;
the filter screen 3 is supported on the inner wall of the mixing chamber 1, is positioned above the liquid outlet hole 12 and is used for supporting effective precipitates separated out from the mixed solution;
and one end of the matching rod 33 is used for connecting the filter screen 3, the other end of the matching rod is controlled by a driving device, and the driving device drives the matching rod 33 to move along the vertical direction and drives the filtration rate net to rise along the vertical direction to be separated from the liquid level of the mixed solution.
The filter net 3 is detachably attached to the engagement rod 33.
A support table 14 protrudes from the inner wall of the mixing chamber 1, and the filter screen 3 is supported on the support table 14.
The filter screen 3 comprises a frame 35, the frame 35 is made of magnetic materials, and the support table 14 is provided with a first electromagnet 15 for supporting the frame 35.
The end of the matching rod 33 is provided with a second electromagnet 331, the filter screen 3 is provided with a connecting seat 31 for inserting the matching rod 33, and the connecting seat 31 is made of magnetic material.
The connecting base 31 is provided with a slot 311 for inserting the second electromagnet 331, and the slot 311 is provided with a travel switch 32.
The first electromagnet 15 is controlled by the travel switch 32, and when the matching rod 33 enters the slot 311 to trigger the travel switch 32, the first electromagnet 15 is powered off and fails.
The second electromagnet 331 is controlled by the travel switch 32, and when the matching rod 33 enters the slot 311 to touch the travel switch 32, the second electromagnet 331 is energized to start and attract the filter screen 3.
The driving device is a filter screen cylinder 34, the filter screen cylinder 34 is arranged at the top of the sealing cover 11, and the matching rod 33 penetrates through the sealing cover 11 and is in sliding connection with the sealing cover 11.
The insertion of the engaging rod 33 into the mixed solution affects the agitating mixing effect of the mixing blade 13, so that the engaging rod 33 ascends through the cylinder control of the strainer 3 out of the liquid surface of the mixed solution at the time of agitating mixing. After the solution is kept stand for a period of time, the solution is precipitated and accumulated on the filter screen 3, the matching rod 33 is lowered to touch the travel switch 32, so that the filter screen 3 is adsorbed on the matching rod 33, and meanwhile, the first electromagnet 15 is invalid, so that the filter screen is easier to separate from the liquid level of the solution along the vertical direction and separate from the solution.
In addition to the above embodiments, the present invention may have other embodiments; all technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.
Claims (9)
1. A production device of dialkyl hypophosphorous acid comprises the following components: the method comprises the following steps:
the mixing chamber (1) is used for providing a space for mixing mother liquor and additives, an opening is formed in the top of the mixing chamber (1), a liquid outlet hole (12) is formed in the bottom of the mixing chamber (1), and a mixing blade (13) used for stirring mixed solution is arranged in the mixing chamber (1);
a cover (11) closing the opening at the top of the mixing chamber (1);
the filter screen (3) is supported on the inner wall of the mixing chamber (1), is positioned above the liquid outlet hole (12), and is used for supporting effective precipitates separated out from the mixed solution;
and one end of the matching rod (33) is used for connecting the filter screen (3), the other end of the matching rod is controlled by a driving device, and the driving device drives the matching rod (33) to move along the vertical direction and drives the filtration rate screen (3) to ascend along the vertical direction to separate from the liquid level of the mixed solution.
2. The apparatus for producing a dialkylphosphinic acid according to claim 1, wherein: the filter screen (3) is detachably connected to the matching rod (33).
3. The apparatus for producing a dialkylphosphinic acid according to claim 2, wherein: a support table (14) protrudes from the inner wall of the mixing chamber (1), and the filter screen (3) is supported on the support table (14).
4. A dialkyl hypophosphorous acid production plant according to claim 3, characterized in that: the filter screen (3) comprises a frame (35), the frame (35) is made of a magnetic material, and a first electromagnet (15) used for supporting the frame (35) is arranged on the supporting table (14).
5. The apparatus for producing a dialkylphosphinic acid according to claim 4, wherein: the end part of the matching rod (33) is provided with a second electromagnet (331), the filter screen (3) is provided with a connecting seat (31) for the matching rod (33) to be inserted, and the connecting seat (31) is made of magnetic materials.
6. The apparatus for producing a dialkylphosphinic acid according to claim 5, wherein: the connecting seat (31) is provided with a slot (311) for the second electromagnet (331) to insert into, and a travel switch (32) is arranged in the slot (311).
7. The apparatus for producing a dialkylphosphinic acid according to claim 6, wherein: the first electromagnet (15) is controlled by a travel switch (32), and when the matching rod (33) enters the slot (311) to trigger the travel switch (32), the first electromagnet (15) is powered off and fails.
8. The apparatus for producing a dialkylphosphinic acid according to claim 7, wherein: the second electromagnet (331) is controlled by a travel switch (32), and when the matching rod (33) enters the slot (311) to trigger the travel switch (32), the second electromagnet (331) is electrified to be started and adsorbs the filter screen (3).
9. The apparatus for producing a dialkylphosphinic acid according to claim 1, wherein: drive arrangement is filter screen cylinder (34), filter screen cylinder (34) are located closing cap (11) top, cooperation pole (33) pass closing cap (11) and with closing cap (11) sliding connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910569579.6A CN112138461B (en) | 2019-06-27 | 2019-06-27 | Production device of dialkyl hypophosphorous acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910569579.6A CN112138461B (en) | 2019-06-27 | 2019-06-27 | Production device of dialkyl hypophosphorous acid |
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| Publication Number | Publication Date |
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| CN112138461A true CN112138461A (en) | 2020-12-29 |
| CN112138461B CN112138461B (en) | 2022-07-29 |
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| CN201910569579.6A Active CN112138461B (en) | 2019-06-27 | 2019-06-27 | Production device of dialkyl hypophosphorous acid |
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