CN220676816U - Crystallizer circulation cooling system - Google Patents
Crystallizer circulation cooling system Download PDFInfo
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- CN220676816U CN220676816U CN202321723319.8U CN202321723319U CN220676816U CN 220676816 U CN220676816 U CN 220676816U CN 202321723319 U CN202321723319 U CN 202321723319U CN 220676816 U CN220676816 U CN 220676816U
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- crystallizer
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- water
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- 238000001816 cooling Methods 0.000 title claims abstract description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 64
- 239000000178 monomer Substances 0.000 claims abstract description 62
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 7
- ZHJGWYRLJUCMRT-UHFFFAOYSA-N 5-[6-[(4-methylpiperazin-1-yl)methyl]benzimidazol-1-yl]-3-[1-[2-(trifluoromethyl)phenyl]ethoxy]thiophene-2-carboxamide Chemical compound C=1C=CC=C(C(F)(F)F)C=1C(C)OC(=C(S1)C(N)=O)C=C1N(C1=C2)C=NC1=CC=C2CN1CCN(C)CC1 ZHJGWYRLJUCMRT-UHFFFAOYSA-N 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000002425 crystallisation Methods 0.000 abstract description 5
- 230000008025 crystallization Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 8
- 238000010992 reflux Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- ICSSIKVYVJQJND-UHFFFAOYSA-N calcium nitrate tetrahydrate Chemical compound O.O.O.O.[Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ICSSIKVYVJQJND-UHFFFAOYSA-N 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- CYCPUHZSAXNBAZ-UHFFFAOYSA-L calcium sulfate tetrahydrate Chemical compound O.O.O.O.[Ca+2].[O-]S([O-])(=O)=O CYCPUHZSAXNBAZ-UHFFFAOYSA-L 0.000 description 1
- JJIQGEZLLWXYKV-UHFFFAOYSA-N calcium;dinitrate;hydrate Chemical compound O.[Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O JJIQGEZLLWXYKV-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003721 gunpowder Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model discloses a crystallizer circulation cooling system, which relates to the technical field of calcium nitrate tetrahydrate crystallization, and comprises a multistage crystallizer, a centrifugal machine, a feeding pipeline and a discharging pipeline; the multistage crystallizer comprises a plurality of crystallizer monomers, wherein a feed inlet, a discharge outlet, a water inlet and a water outlet are formed in each crystallizer monomer; the water inlet of the former stage crystallizer monomer is communicated with the water outlet of the latter stage crystallizer monomer, and the water outlet of the last stage crystallizer monomer is communicated with the water outlet of the first stage crystallizer monomer; the feeding pipelines are respectively communicated with the feeding inlets of the crystallizer monomers; the centrifugal machine is respectively communicated with discharge ports of a plurality of crystallizer monomers through discharge pipelines. The utility model has the beneficial effects that: not only improves the production efficiency, but also reduces the production cost.
Description
Technical Field
The utility model relates to the technical field of crystallization of calcium nitrate tetrahydrate, in particular to a circulating cooling system of a crystallizer.
Background
Calcium nitrate tetrahydrate, having the chemical formula Ca (NO 3) 2.4h2o, is also known as calcium nitrate tetrahydrate or calcium nitrate hydrate. It is a common inorganic compound, and is one of the hydrates of nitric acid and its calcium salt. The calcium nitrate tetrahydrate has colorless and transparent crystals, is generally hexahedral or rhombic, is easily dissolved in water, and is insoluble in organic solvents such as ethanol, diethyl ether and the like. At normal temperature, calcium nitrate tetrahydrate is stable, but is easy to decompose and release gases such as oxygen at high temperature. It can be used as nutrient additive for plant and animal growth, and also for producing gunpowder, firework and explosive.
In the preparation process of calcium nitrate tetrahydrate, crystallization is an indispensable process, and in the prior art, the calcium nitrate tetrahydrate has the problem of insufficient cooling in the crystallization process, so that the production efficiency is lower and the production cost is higher.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a crystallizer circulating cooling system, which solves the problem of insufficient cooling at present, improves the production efficiency and reduces the production cost.
The technical scheme adopted for solving the technical problems is as follows: in the improvement of the crystallizer circulation cooling system, the circulation cooling system comprises a multi-stage crystallizer, a centrifugal machine, a feeding pipeline and a discharging pipeline;
the multistage crystallizer comprises a plurality of crystallizer monomers, wherein a feed inlet, a discharge outlet, a water inlet and a water outlet are formed in each crystallizer monomer; the water inlet of the former stage crystallizer monomer is communicated with the water outlet of the latter stage crystallizer monomer, and the water outlet of the last stage crystallizer monomer is communicated with the water outlet of the first stage crystallizer monomer;
the feeding pipelines are respectively communicated with the feeding inlets of the crystallizer monomers; the centrifugal machine is respectively communicated with discharge ports of a plurality of crystallizer monomers through discharge pipelines.
In the above structure, the circulating cooling system further comprises a low-pressure steam condensate pipe and a low-pressure steam pipe, wherein the low-pressure steam condensate pipe is respectively communicated with the water inlets of the plurality of crystallizer monomers, and the low-pressure steam pipe is respectively communicated with the water outlets of the plurality of crystallizer monomers.
In the structure, the crystallizer monomer comprises a reaction kettle, a stirrer and a cooling coil, wherein the stirrer is arranged in the reaction kettle; the cooling coil is spirally arranged in the reaction kettle, one end of the cooling coil is arranged at the water inlet, and the other end of the cooling coil is arranged at the water outlet.
In the structure, the circulating cooling system further comprises a circulating water pipeline, wherein the circulating water pipeline comprises a water inlet pipe and a water outlet pipe, and the water inlet pipe is communicated with the low-pressure steam condensate pipe and the low-pressure steam pipe; the drain pipe is communicated with the low-pressure steam pipe.
In the above structure, the circulating cooling system further comprises a pneumatic valve, and the pneumatic valve is arranged on the feeding pipeline, the discharging pipeline and the circulating water pipeline.
In the structure, the crystallizer monomer is further provided with a reflux port, and the reflux port is positioned at the bottom of the crystallizer monomer.
In the above structure, the circulating cooling system further comprises a return pipeline, and the return ports of the crystallizer monomers are communicated with the low-pressure condensate pipeline through the return pipeline.
In the above structure, the circulating cooling system further comprises a monitoring instrument, and the monitoring instrument is further arranged on the centrifugal machine.
In the above structure, the circulating cooling system further comprises a guide shower, and the guide shower is arranged at the junction of the discharge pipelines.
In the structure, the crystallizer monomer is U-shaped and is provided with an inner layer structure and an outer layer structure.
The beneficial effects of the utility model are as follows: the liquid calcium nitrate tetrahydrate is cooled in a gradient manner through the multistage crystallizer, so that the full cooling of the liquid calcium sulfate tetrahydrate is ensured, the production efficiency is improved, and the production cost is reduced.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a circulating cooling system of a crystallizer according to the present utility model.
Detailed Description
The utility model will be further described with reference to the drawings and examples.
The conception, specific structure, and technical effects produced by the present utility model will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present utility model. It is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present utility model based on the embodiments of the present utility model. In addition, all the coupling/connection relationships referred to in the patent are not direct connection of the single-finger members, but rather, it means that a better coupling structure can be formed by adding or subtracting coupling aids depending on the specific implementation. The technical features in the utility model can be interactively combined on the premise of no contradiction and conflict.
Referring to fig. 1, the circulating cooling system also comprises a crystallizer circulating cooling system disclosed by the utility model, and comprises a multi-stage crystallizer, a centrifugal machine 1, a feeding pipeline 2, a discharging pipeline 3 and a monitoring instrument 4; the multistage crystallizer comprises 5 crystallizer monomers 5, wherein a feed inlet, a discharge outlet, a water inlet and a water outlet are formed in the crystallizer monomers 5; as a preferred embodiment, the crystallizer monomer 5 comprises a reaction kettle 6, a stirrer 7 and a cooling coil 8, wherein the stirrer 7 is arranged in the reaction kettle 6; the cooling coil 8 is spirally arranged in the reaction kettle 6, one end of the cooling coil is arranged at the water inlet, the other end of the cooling coil is arranged at the water outlet, the water inlet of the former-stage crystallizer monomer 5 is communicated with the water outlet of the latter-stage crystallizer monomer 5, and the water outlet of the last-stage crystallizer monomer 5 is communicated with the water outlet of the first-stage crystallizer monomer 5; the feeding pipeline 2 is respectively communicated with the feeding ports of a plurality of crystallizer monomers; the centrifugal machine 1 is respectively communicated with discharge ports of a plurality of crystallizer monomers through discharge pipelines 3; the monitoring instrument 4 is also arranged on the centrifugal machine 1.
In the embodiment, liquid calcium nitrate tetrahydrate enters a multistage crystallizer from a feeding pipeline 2, circulating water enters a cooling coil 8 of the crystallizer monomer 5 from a water inlet of the first stage crystallizer monomer 5 to cool the liquid calcium nitrate tetrahydrate, and the circulating water continuously enters the cooling coil 8 of the next stage crystallizer monomer 5 through a water outlet of the crystallizer monomer 5 until the circulating water enters the water inlet of the first stage crystallizer monomer 5 from a water outlet of the last stage crystallizer monomer 5, so that the circulation of the circulating water and the gradient cooling of the circulating water on the liquid calcium nitrate tetrahydrate are realized, and the temperature of the liquid calcium nitrate tetrahydrate at 120 ℃ is reduced to 30 ℃; thereby ensuring the full cooling of the liquid calcium nitrate tetrahydrate, further improving the production efficiency and reducing the production cost. In addition, each stage of crystallizer monomer 5 is provided with two layers and is U-shaped, is not easy to break the crystal shape, is easy to control the size of crystal particles, and avoids hardening after the finished product is packaged; each stage of crystallizer monomer 5 is provided with a stirrer 7, and operators can control the size of crystallization particles by adjusting the rotating speed of the stirrer 7; each stage of crystallizer is provided with a jacket, and the cooling area is large; the monitoring instrument 4 can monitor the temperature of the product in the centrifugal machine 1 and properly adjust the temperature, thereby ensuring the production accuracy of the product and further improving the production efficiency.
With continued reference to fig. 1, the circulating cooling system further includes a pneumatic valve 9 and a shower guide 10, where the pneumatic valve 9 is disposed in the feed pipe 2 and the discharge pipe 3; the shower guide 10 is arranged at the junction of the discharge pipeline 3. In the embodiment, the air flow speed and the flow rate in the crystallizer are regulated by opening and closing the pneumatic valve 9, so that the temperature distribution in the crystallizer is regulated; wherein, pneumatic valve 9 is designed to each level crystallizer monomer 5 bottom, and first pneumatic valve 5 remote control, prevention putty, second pneumatic valve 5 and centrifuge 1 material level carry out interlocking control, and when the material level reaches 80%, automatic closing, when the material level reaches 0%, automatic opening. The guide shower 10 is designed between the first pneumatic valve 5 and the second pneumatic valve 5, and when the first pneumatic valve 9 fails and the centrifugal machine 1 is full in liquid level, materials can be discharged to the mother liquor tank in time.
With continued reference to fig. 1, the circulating cooling system further includes a circulating water pipe, a return pipe 11, a low-pressure steam condensate pipe 12 and a low-pressure steam pipe 13, wherein the low-pressure steam condensate pipe 12 is respectively communicated with water inlets of the plurality of crystallizer monomers, and the low-pressure steam pipe 13 is respectively communicated with water outlets of the plurality of crystallizer monomers; the crystallizer monomer 5 is also provided with a reflux port, and the reflux port is positioned at the bottom of the crystallizer monomer 5; the reflux pipeline 11 is connected between the reflux port and the low-pressure steam condensate pipeline 12; the pneumatic valve 9 is arranged on the circulating water pipeline, the circulating water pipeline comprises a water inlet pipe 14 and a water outlet pipe 15, and the water inlet pipe 14 is communicated with the low-pressure steam condensate pipe 12 and the low-pressure steam pipe 13; the drain pipe 15 communicates with the low pressure steam pipe 13. In the embodiment, the water inlet pipe 14 is distributed to each stage of crystallizer monomer 5, the front part of the crystallizer monomer 5 is controlled by the pneumatic valve 9, and the control point is connected to the central control system, so that the automation degree of the scheme is higher. In addition, the low-pressure steam condensate pipe 12 is used for conveying steam condensate, and conveying the condensate to the cooling coil 8 of the multistage crystallizer, so that the condensate is continuously communicated and plays a recycling effect, and the resource waste is reduced; the low pressure steam pipe 13 is used for transmitting low pressure steam, and the low pressure steam can play a role of heating so as to achieve the effect of properly adjusting the temperature of the product.
While the preferred embodiment of the present utility model has been described in detail, the present utility model is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model, and these equivalent modifications or substitutions are included in the scope of the present utility model as defined in the appended claims.
Claims (10)
1. The crystallizer circulation cooling system is characterized by comprising a multistage crystallizer, a centrifugal machine, a feeding pipeline and a discharging pipeline;
the multistage crystallizer comprises a plurality of crystallizer monomers, wherein a feed inlet, a discharge outlet, a water inlet and a water outlet are formed in each crystallizer monomer; the water inlet of the former stage crystallizer monomer is communicated with the water outlet of the latter stage crystallizer monomer, and the water outlet of the last stage crystallizer monomer is communicated with the water outlet of the first stage crystallizer monomer;
the feeding pipelines are respectively communicated with the feeding inlets of the crystallizer monomers; the centrifugal machine is respectively communicated with discharge ports of a plurality of crystallizer monomers through discharge pipelines.
2. The crystallizer cooling circulation system of claim 1, further comprising a low pressure steam condensate pipe and a low pressure steam pipe, wherein the low pressure steam condensate pipe is respectively communicated with the water inlets of the plurality of crystallizer monomers, and the low pressure steam pipe is respectively communicated with the water outlets of the plurality of crystallizer monomers.
3. The crystallizer circulating cooling system of claim 2, wherein the crystallizer monomers comprise a reaction kettle, a stirrer and a cooling coil, and the stirrer is arranged in the reaction kettle; the cooling coil is spirally arranged in the reaction kettle, one end of the cooling coil is arranged at the water inlet, and the other end of the cooling coil is arranged at the water outlet.
4. A crystallizer circulation cooling system in accordance with claim 2, further comprising a circulation water conduit comprising a water inlet pipe and a water outlet pipe, said water inlet pipe being in communication with the low pressure steam condensate pipe and the low pressure steam pipe; the drain pipe is communicated with the low-pressure steam pipe.
5. The crystallizer cooling circulation system of claim 4, further comprising pneumatic valves disposed on the feed line, the discharge line, and the circulating water line.
6. A crystallizer circulating cooling system in accordance with claim 2, wherein the crystallizer monomer is further provided with a return port, and the return port is located at the bottom of the crystallizer monomer.
7. The crystallizer cooling circulation system of claim 6, further comprising a return conduit, wherein the return ports of the plurality of crystallizer monomers are in communication with the low pressure condensate conduit via the return conduit.
8. The crystallizer cooling circulation system of claim 1, further comprising a monitoring meter, the monitoring meter further disposed on the centrifuge.
9. The crystallizer cooling circulation system of claim 1, further comprising a shower guide disposed at the discharge conduit junction.
10. The crystallizer circulating cooling system of claim 1, wherein the crystallizer monomer is U-shaped and is provided with an inner layer structure and an outer layer structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321723319.8U CN220676816U (en) | 2023-06-30 | 2023-06-30 | Crystallizer circulation cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321723319.8U CN220676816U (en) | 2023-06-30 | 2023-06-30 | Crystallizer circulation cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220676816U true CN220676816U (en) | 2024-03-29 |
Family
ID=90370814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321723319.8U Active CN220676816U (en) | 2023-06-30 | 2023-06-30 | Crystallizer circulation cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220676816U (en) |
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2023
- 2023-06-30 CN CN202321723319.8U patent/CN220676816U/en active Active
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