CN212559483U - Sodium sulfate decahydrate serialization apparatus for producing - Google Patents
Sodium sulfate decahydrate serialization apparatus for producing Download PDFInfo
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- CN212559483U CN212559483U CN202020949430.9U CN202020949430U CN212559483U CN 212559483 U CN212559483 U CN 212559483U CN 202020949430 U CN202020949430 U CN 202020949430U CN 212559483 U CN212559483 U CN 212559483U
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- phase separator
- crystallization phase
- sodium sulfate
- sulfate decahydrate
- continuous production
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Abstract
A continuous production device of sodium sulfate decahydrate comprises a crystallization phase separator and a feeding cooler connected with the crystallization phase separator; an overflow weir is arranged at the upper part of the crystallization phase separator, an overflow pipeline at the upper part of the crystallization phase separator is sequentially connected with a crystal melting device and a first conveying pump, and liquid discharged by the first conveying pump is connected with the lower end of the crystallization phase separator through a circulating cooler; the lower end of the crystallization phase separator is communicated with a centrifugal machine through a third conveying pump. The utility model has the advantages that, utilize light looks to cool down, can prevent stifled realization continuous production simultaneously.
Description
Technical Field
The utility model belongs to the technical field of inorganic chemical industry, a sodium sulfate decahydrate serialization apparatus for producing is related to.
Background
In order to create value for the salt-containing wastewater containing part of sodium benzoate, the salt-containing wastewater is particularly used for reacting with sulfuric acid to prepare benzoic acid, a large amount of sodium sulfate is generated in the water phase in the reaction process of preparing benzoic acid by using sodium sulfate, and the traditional low-temperature crystallization process heat exchanger has the advantages of short service cycle, discontinuous production, high operation difficulty and high strength.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a sodium sulfate decahydrate continuous production device utilizes light looks to cool down, can prevent stifled realization continuous production simultaneously.
The technical scheme for realizing the purpose of the utility model is that the continuous production device of sodium sulfate decahydrate comprises a crystallization phase separator and a feeding cooler connected with the crystallization phase separator;
an overflow weir is arranged at the upper part of the crystallization phase separator, an overflow pipeline at the upper part of the crystallization phase separator is sequentially connected with a crystal melting device and a first conveying pump, and liquid discharged by the first conveying pump is connected with the lower end of the crystallization phase separator through a circulating cooler;
the lower end of the crystallization phase separator is communicated with a centrifugal machine through a third conveying pump.
Preferably, the apparatus for producing include the backward flow part, the backward flow part include with the precision of first delivery pump intercommunication cut off the filter and with the buffer tank that the precision was cut off the filter and is connected, the buffer tank pass through second delivery pump and crystallization phase separator upper end intercommunication.
Preferably, the centrifuge is in communication with a centrifuge mother liquor tank.
Preferably, the upper end of the crystallization phase separator is large, and the lower end of the crystallization phase separator is small.
Preferably, the circulation cooler is supplemented with cooling liquid through a light phase supplement pipe.
Preferably, an electronic liquid gauge is arranged at a liquid outlet of the first conveying pump, an electric control valve is arranged on the light phase supplementing pipe, and the electronic liquid gauge is connected with the electric control valve through a controller.
The utility model has the advantages that; the light phase and the organic phase separated from the upper end of the crystallization phase separator are used as cooling carriers to replace the traditional method of directly cooling a saturated sodium sulfate solution, so that the phenomenon that sodium sulfate decahydrate is separated out in the cooling process, the separated sodium sulfate decahydrate blocks a low-temperature heat exchanger, and the heat exchanger has no heat exchange effect and needs to be stopped to perform unblocking on the heat exchanger and then is restarted; and the light phase and the organic phase separated from the upper end of the crystallization phase separator are used as cooling carriers for cooling the low-temperature heat exchanger, so that the light phase without crystal precipitation is cooled, and then enters the low-temperature crystallization phase separator to exchange heat with a sodium sulfate solution and perform phase separation, and the problem of crystallization blockage of the low-temperature heat exchanger can be well solved.
Drawings
Fig. 1 is a schematic view of the present invention.
In fig. 1, a feed cooler 1, a crystallization phase separator 2, a crystal melter 3, a first delivery pump 4, a circulation cooler 5, a fine break filter 6, a buffer tank 7, a second delivery pump 8, a third delivery pump 10, a centrifuge 11, an electronic liquid measuring device 13, an electronic control valve 14 and a controller 15.
Detailed Description
As shown in fig. 1, a continuous production apparatus for sodium sulfate decahydrate comprises a crystallization phase separator 2 and a feed cooler 1 connected to the crystallization phase separator 2, wherein a reaction material is cooled by the feed cooler 1 and then enters the crystallization phase separator 2, preferably, the continuous production apparatus for sodium sulfate decahydrate comprises a reflux component, the reflux component comprises a fine break filter 6 communicated with the first delivery pump 4 and a buffer tank 7 connected to the fine break filter 6, the buffer tank 7 is communicated with the upper end of the crystallization phase separator 2 by a second delivery pump 8, the fine break filter 6 filters particles discharged by the first delivery pump 4, and the filtered liquid is refluxed to the crystallization phase separator 2 by the buffer tank 7;
an overflow weir is arranged at the upper part of the crystallization phase separator 2, an overflow pipeline at the upper part of the crystallization phase separator 2 is sequentially connected with a crystal melting device 3 and a first conveying pump 4, liquid discharged by the first conveying pump 4 is connected with the lower end of the crystallization phase separator 2 through a circulating cooler 5, light-phase liquid at the upper end of the crystallization phase separator 2 enters the crystal melting device 3 to be subjected to crystal melting treatment under the action of the first conveying pump 4, the circulating cooler 5 provides a refrigerant for the light phase and returns to the lower end of the crystallization phase separator 2, when the temperature of the light phase meets the requirement, the light phase is conveyed to the crystallization phase separator 2 through a second conveying pump 8, and when the temperature of the light phase is higher than the requirement, the light phase is conveyed to the crystallization phase separator 2 through the circulating cooler 5;
the lower end of the crystallization phase separator 2 is communicated with a centrifuge 11 through a third conveying pump 10, the centrifuge 11 is communicated with a centrifuge mother liquor tank 12, the upper end of the crystallization phase separator 2 is large, the lower end of the crystallization phase separator 2 is small, a circulating cooler 5 supplements cooling liquid through a light phase supplementing pipe 9, an electronic liquid gauge 13 is arranged at a liquid outlet of the first conveying pump 4, an electric control valve 14 is arranged on the light phase supplementing pipe 9, the electronic liquid gauge 13 is connected with the electric control valve 14 through a controller 15, the electronic liquid gauge 13 collects the liquid outlet flow of the first conveying pump 4 in real time, if the flow is too low, the electric control valve 14 is started through the controller 15, the opening degree of the electric control valve 14 is controlled, and cooling liquid is supplemented to the circulating cooler 5 through the light phase supplementing pipe 9.
The working principle is as follows: the reactant enters a crystallization phase separator 2 after being cooled by a feeding cooler 1 to generate sodium sulfate decahydrate, a light phase is discharged from the upper end and flows back to the crystallization phase separator 2 through a crystal melting device 3, a first delivery pump 4 and a circulating cooler 5 to cool the crystallization phase separator, and a generated heavy phase is the sodium sulfate decahydrate, is communicated with a centrifuge 11 through a third delivery pump 10 and is stored in a centrifuge mother liquor tank 12, wherein a cooling liquid is supplemented to the light phase through a light phase supplementing pipe 9.
Claims (6)
1. A sodium sulfate decahydrate serialization apparatus for producing, characterized by: the production device comprises a crystallization phase separator and a feeding cooler connected with the crystallization phase separator;
an overflow weir is arranged at the upper part of the crystallization phase separator, an overflow pipeline at the upper part of the crystallization phase separator is sequentially connected with a crystal melting device and a first conveying pump, and liquid discharged by the first conveying pump is connected with the lower end of the crystallization phase separator through a circulating cooler;
the lower end of the crystallization phase separator is communicated with a centrifugal machine through a third conveying pump.
2. The continuous production device of sodium sulfate decahydrate according to claim 1, which is characterized in that: the apparatus for producing include the backward flow part, the backward flow part include with the smart disconnected filter of first delivery pump intercommunication and with the buffer tank that the smart disconnected filter is connected, the buffer tank pass through second delivery pump and crystallization phase separator upper end intercommunication.
3. The continuous production device of sodium sulfate decahydrate according to claim 1, which is characterized in that: the centrifuge is communicated with a centrifuge mother liquor tank.
4. The continuous production device of sodium sulfate decahydrate according to claim 1, which is characterized in that: the upper end of the crystallization phase separator is large, and the lower end of the crystallization phase separator is small.
5. The continuous production device of sodium sulfate decahydrate according to claim 1, which is characterized in that: the circulating cooler is used for supplementing cooling liquid through a light phase supplementing pipe.
6. The continuous production device of sodium sulfate decahydrate according to claim 5, which is characterized in that: an electronic liquid gauge is arranged at a liquid outlet of the first conveying pump, an electric control valve is arranged on the light supplement pipe, and the electronic liquid gauge is connected with the electric control valve through a controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020949430.9U CN212559483U (en) | 2020-05-29 | 2020-05-29 | Sodium sulfate decahydrate serialization apparatus for producing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020949430.9U CN212559483U (en) | 2020-05-29 | 2020-05-29 | Sodium sulfate decahydrate serialization apparatus for producing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212559483U true CN212559483U (en) | 2021-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020949430.9U Active CN212559483U (en) | 2020-05-29 | 2020-05-29 | Sodium sulfate decahydrate serialization apparatus for producing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212559483U (en) |
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2020
- 2020-05-29 CN CN202020949430.9U patent/CN212559483U/en active Active
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