CN202410227U - Continuous type crystallizing system - Google Patents
Continuous type crystallizing system Download PDFInfo
- Publication number
- CN202410227U CN202410227U CN2012200224992U CN201220022499U CN202410227U CN 202410227 U CN202410227 U CN 202410227U CN 2012200224992 U CN2012200224992 U CN 2012200224992U CN 201220022499 U CN201220022499 U CN 201220022499U CN 202410227 U CN202410227 U CN 202410227U
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- heat exchanger
- crystallization tank
- cooling
- tank
- water heat
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Abstract
The utility model relates to a continuous type crystallizing system comprising a crystallizing tank, wherein the inside of the crystallizing tank is provided with a cooling coil pipe of a stirrer, the outside of the crystallizing tank is provided with a heat insulating layer, the bottom of the crystallizing tank is provided with a siphon pipe, and a feeding pipe for rich liquid is arranged in the crystallizing tank; and moreover, an outlet part of the feeding pipe for the rich liquid is positioned below the liquid level, the upper part of the crystallizing tank is provided with an overflow port, and the overflow port is connected with a mother liquid tank by a pipeline. The continuous type crystallizing equipment has reasonable design, high temperature control accuracy of a solution, high cooling efficiency of cooling equipment, uniform size of produced crystal particles, stable quality and good continuity and automatization in the entire crystallizing process.
Description
Technical field
The utility model relates to the continous way crystallizer, especially relates to a kind of continuous crystallisation equipment that is applied to nickel salt solution.
Background technology
Existing nickel salt crystallization tank is batch normally, is about to high temperature, the input of highly enriched solution has in the chuck crystallization tank, is connected with water quench in the chuck; Agitator is housed in the crystallization tank, and stir on the limit, the limit cooling; Drop to the crystallization temperature of solution up to temperature; After the crystallization tank bottom is completed into crystal, will have the crystal of crystalline mother solution, enter centrifugal separator from the crystallization tank bottom.This crystallization mode, solution temperature have bigger gradient, and topical solutions Yin Wendu hangs down and reaches supersaturation, the beginning nucleation, and other local temperature are higher, do not reach hypersaturated state yet; It is inconsistent to make that so not comprovincial solution in the groove begins to form time of nucleus, and formed nucleus becomes also to be not quite similar for a long time, and when accomplishing to crystallization, resulting crystal grain is not of uniform size, and moisture content is also higher, has increased the energy consumption of back road baking operation.In addition, this crystallization mode, because the anticorrosive coat of cell body inwall, heat transfer coefficient is lower, and is also less with the contact area of solution, thereby causes cool time also longer, production efficiency is low.Also have, owing to be the batch crystallization, fluctuation appears in the product quality of different batches easily, and is unfavorable for the continuous production of separation circuit.
Summary of the invention
The utility model technical problem to be solved provides a kind of continous way crystal system, realizes the solution crystallization temperature stabilization, formed crystal grain size uniformity, and moisture content is low; Improve the heat transfer coefficient of cooling device, and then enhance productivity; Realize the serialization of crystallization process, the stability of improving the quality of products.
The technical scheme that is adopted that the utility model solves its technical problem is: a kind of continous way crystal system; Comprise crystallization tank, crystallization tank inside is provided with the agitator cooling coil, and the outside of crystallization tank is provided with heat-insulation layer; Described crystallization tank bottom is provided with siphon pipe; In crystallization tank, be provided with the rich solution feed pipe and its export department is positioned at below the liquid level, the top of crystallization tank is provided with overfall, and overfall is connected with mother liquor tank through pipeline.
The delivery port of further described cooling coil is connected with expansion slot, and expansion slot is connected with the recirculated water heat exchanger through pump, and the recirculated water heat exchanger is connected with the chilled water heat exchanger, and the chilled water heat exchanger is connected with the cooling coil water inlet.
Further, the pipeline of described siphon pipe outlet is leaded up to hot water valve and is connected with hot-water line, and another road is equipped with the siphon valve.
Further, described crystallization tank is provided with liquid level sensor and temperature sensor, liquid level sensor and the temperature sensor rich solution charging automatic valve through installing on the collecting and distributing control system control rich solution feed pipe.
Further; The outlet of described chilled water heat exchanger is provided with cooling-water temperature sensor, the chilled water automatic valve of cooling-water temperature sensor through installing on the recirculated cooling water automatic valve installed on the collecting and distributing control system control recirculated water heat exchanger and the chilled water heat exchanger.
The beneficial effect of the utility model is: the continous way crystallizer is reasonable in design, and the temperature control precision of solution is high, and the cooling device cooling effectiveness is high, and output crystal grain size is even, steady quality, whole crystallization process serialization, automation.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure: 1, cooling water inlet pipe; 2, liquid level sensor; 3, temperature sensor; 4, agitator; 5, rich solution charging automatic valve; 6, rich solution feed pipe; 7, cooling water outlet pipe; 8, hot water valve; 9, siphon valve; 10, siphon pipe; 11,24,26, stationary pipes; 12, siphon head; 13, rich solution groove; 14, rich solution pump; 15, expansion slot; 16, pump; 17, recirculated cooling water automatic valve; 18, recirculated water heat exchanger; 19, chilled water automatic valve; 20, chilled water heat exchanger; 21, mother liquor tank; 22, cooling-water temperature sensor; 23, floss hole; 25, cooling coil; 27, outer coil pipe; 28, anticorrosive coat; 29, crystallization tank; 30, overfall; 31, crystallization tank top.
The specific embodiment
Continous way crystallizer as shown in Figure 1 is by crystallization tank 29, agitator 4, cooling coil, siphon pipe 10, pump 16, plate type heat exchanger, rich solution groove 13, mother liquor tank 21, temperature sensor, liquid level sensor, compositions such as automatic regulating valve and DCS control system.Crystallization cell body 29 is processed by the 316L stainless steel; Liner high-quality natural rubber is made anticorrosive coat 28; 4 in agitator and blade are also made by 316L stainless steel outer lining natural rubber; Inner coil pipe 25, outer coil pipe 27, siphon pipe 10 siphons 12 are made by INCOLOY825, are fixed in the crystallization tank 29 by stationary pipes 24,26 and 11 respectively.The bracing frame that crystallization tank top 31 is made up of channel-section steel, on liquid level sensor 2 is housed, temperature sensor 3, cooling water inlet pipe 1, cooling water outlet pipe 7, rich solution charging automatic valve 5 and rich solution feed pipe 6.High temperature, high concentration rich solution insert below the crystallization tank liquid level through rich solution feed pipe 6 with rich solution pump 14 in the rich solution groove 13, and in the effect of stirring, rich solution spreads rapidly; Carry out heat exchange with the cooling water in the cooling coil, form nucleus continuously and grow up, the crystal that is produced is sunken to the crystallization tank bottom; Available siphon pipe 10 will have the crystal continuous of mother liquor and extract following one solid-liquid separation process of entering out; The operation of siphon is to open hot water valve 8 earlier, makes siphon pipe 10 be full of hot water, opens siphon valve 9 then; Close hot water valve 8 again, crystal can be come out by siphon.Solution temperature is detected by temperature sensor 3 in the crystallization tank 29; And feed back to DCS through rich solution charging automatic valve 5 adjusting rich solution flows; Crystallization tank 29 liquid levels are detected by liquid level sensor 2, and when being higher than overfall, the DCS system can report to the police automatically; Under the normal condition, crystalline mother solution from overfall 30 overflows to mother liquor tank 21.Crystallization tank 29 bottom drain 23 are closed, and behind the end-of-job, open when discharging solution and crystal.Cooling water is sent into recirculated water heat exchanger 18 by expansion slot 15 usefulness pumps 16 in the cooling coil, passes through chilled water heat exchanger 20 again, gets into the cooling coil import of crystallization tank 29, returns cooling water to expansion slot 15 from the cooling coil outlet of crystallization tank 29.Cooling water temperature is to detect and feed back to recirculated cooling water and the chilled-water flow that DCS adjust the entering heat exchanger respectively through recirculated cooling water automatic valve 17 and chilled water automatic valve 19 by cooling-water temperature sensor 22 to realize.
Claims (5)
1. continous way crystal system; Comprise crystallization tank (29), crystallization tank (29) inside is provided with agitator (4) and cooling coil, and the inside of crystallization tank (29) is provided with anticorrosive coat (28); It is characterized in that: described crystallization tank (29) bottom is provided with siphon pipe (10); In crystallization tank (29), be provided with rich solution feed pipe (6) and its export department and be positioned at below the liquid level, the top of crystallization tank (29) is provided with overfall (30), and overfall (30) is connected with mother liquor tank (21) through pipeline.
2. continous way crystal system according to claim 1; It is characterized in that: the delivery port of described cooling coil is connected with expansion slot (15); Expansion slot (15) is connected with recirculated water heat exchanger (18) through pump (16); Recirculated water heat exchanger (18) is connected with chilled water heat exchanger (20), and chilled water heat exchanger (20) is connected with the cooling coil water inlet.
3. continous way crystal system according to claim 1 is characterized in that: the pipeline of described siphon pipe (10) outlet is leaded up to hot water valve (8) and is connected with hot-water line, and another road is equipped with siphon valve (9).
4. continous way crystal system according to claim 1; It is characterized in that: described crystallization tank (29) is provided with liquid level sensor (2) and temperature sensor (3), and liquid level sensor (2) and temperature sensor (3) are gone up the rich solution charging automatic valve of installing (5) through collecting and distributing control system control rich solution feed pipe (6).
5. continous way crystal system according to claim 2; It is characterized in that: the outlet of described chilled water heat exchanger (20) is provided with cooling-water temperature sensor (22), and cooling-water temperature sensor (22) is gone up recirculated cooling water automatic valve (17) and the chilled water heat exchanger (20) installed through collecting and distributing control system control recirculated water heat exchanger (18) and gone up the chilled water automatic valve of installing (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200224992U CN202410227U (en) | 2012-01-18 | 2012-01-18 | Continuous type crystallizing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200224992U CN202410227U (en) | 2012-01-18 | 2012-01-18 | Continuous type crystallizing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202410227U true CN202410227U (en) | 2012-09-05 |
Family
ID=46735025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200224992U Expired - Fee Related CN202410227U (en) | 2012-01-18 | 2012-01-18 | Continuous type crystallizing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202410227U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021047266A1 (en) * | 2019-09-11 | 2021-03-18 | 中国科学院青岛生物能源与过程研究所 | Apparatus and method for increasing solid content in reaction crystallizer |
| CN113717114A (en) * | 2021-09-23 | 2021-11-30 | 济南悟通生物科技有限公司 | 2-acetylpyrazine continuous recrystallization device, method and application thereof |
-
2012
- 2012-01-18 CN CN2012200224992U patent/CN202410227U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021047266A1 (en) * | 2019-09-11 | 2021-03-18 | 中国科学院青岛生物能源与过程研究所 | Apparatus and method for increasing solid content in reaction crystallizer |
| CN113717114A (en) * | 2021-09-23 | 2021-11-30 | 济南悟通生物科技有限公司 | 2-acetylpyrazine continuous recrystallization device, method and application thereof |
| CN113717114B (en) * | 2021-09-23 | 2022-12-02 | 济南悟通生物科技有限公司 | 2-acetylpyrazine continuous recrystallization device, method and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20150118 |
|
| EXPY | Termination of patent right or utility model |