CN219231471U - Continuous crystallization device for disodium uridylate - Google Patents
Continuous crystallization device for disodium uridylate Download PDFInfo
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- CN219231471U CN219231471U CN202223125287.XU CN202223125287U CN219231471U CN 219231471 U CN219231471 U CN 219231471U CN 202223125287 U CN202223125287 U CN 202223125287U CN 219231471 U CN219231471 U CN 219231471U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The utility model discloses a continuous crystallization device of disodium uridylate, which comprises a feed pump, a heat exchanger, a crystallizer and a centrifuge; the feeding pump comprises a first liquid inlet, a second liquid inlet and a first liquid outlet, wherein the first liquid inlet is connected with the water inlet pipe, the second liquid inlet is connected with a heat exchange water outlet of the crystallizer through a pipeline, the first liquid outlet is connected with a water inlet of the heat exchanger through a pipeline, a crystal slurry outlet of the heat exchanger is connected with the water inlet of the crystallizer through a pipeline, a crystal water outlet of the crystallizer is connected with the water inlet of the centrifugal machine, the crystallization temperature is controlled through the heat exchanger, firstly, the temperature of the solution in the crystallizer is reduced to the optimal crystallization temperature after the liquid inlet, then the temperature of the solution in the crystallizer is increased in the crystallization process, and the solution in the crystallizer is pumped into the heat exchanger through the feeding pump to be further reduced so as to reach the optimal crystallization temperature, and the crystallization rate is improved.
Description
Technical Field
The utility model relates to the technical field of crystallization devices, in particular to a continuous crystallization device for disodium uridylate.
Background
Disodium uridylate is used as a basic pyrimidine nucleotide and is widely applied to the fields of food and feed additives, plant growth regulators, medicines, prodrugs and the like. Can be used as food additive to increase nucleotide content close to human milk component, and enhance infant resistance. Can be used as intermediate for producing nucleic acid medicines, health food and biochemical reagent, and can be used for preparing Uridine Triphosphate (UTP), poly-adeuria, fluroxypyr-meptyl and other medicines. The domestic and foreign demands are relatively large.
The prior crystallization device has the common problems that the temperature of the disodium uridylate solution rises in the crystallization process, the optimal crystallization temperature is difficult to control, and the crystallization rate is low.
Disclosure of Invention
The utility model aims to provide a continuous crystallization device for disodium uridylate, aiming at the defects of the prior art.
The technical scheme for solving the problems is as follows: a continuous crystallization device of disodium uridylate comprises a feed pump, a heat exchanger, a crystallizer and a centrifuge;
the feeding pump comprises a first liquid inlet, a second liquid inlet and a first liquid outlet, wherein the first liquid inlet is connected with the water inlet pipe, the second liquid inlet is connected with a heat exchange water outlet of the crystallizer through a pipeline, the first liquid outlet is connected with a water inlet of the heat exchanger through a pipeline, a crystal slurry outlet of the heat exchanger is connected with the water inlet of the crystallizer through a pipeline, and a crystal water outlet of the crystallizer is connected with the water inlet of the centrifugal machine.
Further, the temperature of the liquid discharged from the heat exchanger is 20-25 ℃.
Further, a first temperature sensor is arranged in the crystallizer, a first electromagnetic valve is arranged at a first liquid inlet of the feed pump, a second electromagnetic valve is arranged at a second liquid inlet, and the first temperature sensor, the first electromagnetic valve, the second electromagnetic valve and the feed pump switch are connected with the controller.
Further, the centrifugal machine is respectively provided with a mother liquor recovery pipe and a crystallization outlet.
The utility model has the beneficial effects that:
the utility model provides a continuous crystallization device for disodium uridylate, which realizes the control of crystallization temperature through a heat exchanger, firstly, liquid is fed and then cooled to the optimal crystallization temperature, then the temperature of solution entering a crystallizer is increased in the crystallization process, and the solution in the crystallizer is pumped into the heat exchanger through a feed pump to further cool so as to reach the optimal crystallization temperature and improve the crystallization rate.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
in the figure: 1-feeding pump, 2-heat exchanger, 3-crystallizer, 4-centrifuge, 5-first inlet, 6-second inlet, 7-first outlet, 8-crystal slurry outlet, 9-mother liquor recovery pipe, 10-crystallization outlet, 11-heat exchange water outlet, 12-first solenoid valve, 13-second solenoid valve.
Detailed Description
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.
As shown in the figure, the continuous crystallization device for disodium uridylate comprises a feed pump, a heat exchanger, a crystallizer and a centrifuge;
the feeding pump comprises a first liquid inlet, a second liquid inlet and a first liquid outlet, wherein the first liquid inlet is connected with a water inlet pipe, the second liquid inlet is connected with a heat exchange water outlet of the crystallizer through a pipeline, the first liquid outlet is connected with a water inlet of the heat exchanger through a pipeline, a crystal slurry outlet of the heat exchanger is connected with the water inlet of the crystallizer through a pipeline, a crystal water outlet of the crystallizer is connected with a water inlet of a centrifugal machine, and the centrifugal machine is respectively provided with a mother liquor recovery pipe and a crystal outlet. The mixed solution of the disodium uridylate solution and the ethanol solution is pumped into a heat exchanger by a feed pump, the temperature of the solution is reduced to a specified temperature by the heat exchanger to form crystal slurry, the crystal slurry enters a crystallizer through a crystal slurry outlet on the heat exchanger, the crystal slurry is further crystallized in the crystallizer and then is deposited to the bottom of the crystallizer, the crystal deposited to the bottom is placed into a centrifugal machine, centrifugal treatment is carried out in the centrifugal machine, the crystal is thoroughly separated from mother liquor, the crystal is discharged out through a crystallization outlet on the centrifugal machine and enters a finished product process, and the mother liquor is recycled through a mother liquor recycling pipe on the centrifugal machine. Meanwhile, the temperature of crystal slurry in the crystallizer rises in the crystallization process, the optimal crystallization effect cannot be achieved, and the crystal slurry is pumped into a heat exchanger from a heat exchange water outlet by a feed pump to exchange heat and reduce the temperature.
The disodium uridylate solution is crystallized by ethanol solution, and the optimal crystallization temperature is 20-25 ℃. The temperature of the liquid discharged from the heat exchanger is 20-25 ℃.
In order to control the crystallization temperature to be the best, a first temperature sensor is arranged in the crystallizer, a first electromagnetic valve is arranged at a first liquid inlet of a feed pump, a second electromagnetic valve is arranged at a second liquid inlet, the first temperature sensor, the first electromagnetic valve, the second electromagnetic valve and a feed pump switch are connected with a controller, the controller firstly controls the feed pump to operate and the first electromagnetic valve to open, the second electromagnetic valve is closed, after the crystallization liquid level is reached in the crystallizer, the feed pump is closed, the temperature of the crystallizer rises above the best crystallization temperature in the crystallization process, the controller controls the feed pump to operate and the second electromagnetic valve to start, the first electromagnetic valve is closed, and the crystal slurry in the crystallizer is cooled by a heat exchanger.
The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.
Claims (4)
1. A continuous crystallization device for disodium uridylate, which is characterized in that: comprises a feed pump, a heat exchanger, a crystallizer and a centrifuge;
the feeding pump comprises a first liquid inlet, a second liquid inlet and a first liquid outlet, wherein the first liquid inlet is connected with the water inlet pipe, the second liquid inlet is connected with a heat exchange water outlet of the crystallizer through a pipeline, the first liquid outlet is connected with a water inlet of the heat exchanger through a pipeline, a crystal slurry outlet of the heat exchanger is connected with the water inlet of the crystallizer through a pipeline, and a crystal water outlet of the crystallizer is connected with the water inlet of the centrifugal machine.
2. A continuous crystallization device for disodium uridylate as defined in claim 1, wherein: the temperature of the liquid discharged from the heat exchanger is 20-25 ℃.
3. A continuous crystallization device for disodium uridylate as defined in claim 1 or 2, wherein: the crystallizer is internally provided with a first temperature sensor, a first electromagnetic valve is arranged at a first liquid inlet of the feed pump, a second electromagnetic valve is arranged at a second liquid inlet, and the first temperature sensor, the first electromagnetic valve, the second electromagnetic valve and the feed pump switch are connected with the controller.
4. A continuous crystallization device for disodium uridylate as defined in claim 1, wherein: the centrifugal machine is respectively provided with a mother liquor recovery pipe and a crystallization outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223125287.XU CN219231471U (en) | 2022-11-23 | 2022-11-23 | Continuous crystallization device for disodium uridylate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223125287.XU CN219231471U (en) | 2022-11-23 | 2022-11-23 | Continuous crystallization device for disodium uridylate |
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| Publication Number | Publication Date |
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| CN219231471U true CN219231471U (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202223125287.XU Active CN219231471U (en) | 2022-11-23 | 2022-11-23 | Continuous crystallization device for disodium uridylate |
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| Country | Link |
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| CN (1) | CN219231471U (en) |
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2022
- 2022-11-23 CN CN202223125287.XU patent/CN219231471U/en active Active
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